Initial Commit

Signed-off-by: Avior <florian.bouillon@delta-wings.net>
2025-06-12 17:19:18 +00:00 · 2021-12-10 09:44:20 +01:00
commit a164e23b2d
62 changed files with 1673 additions and 0 deletions
--- a/app/.gitignore
+++ b/app/.gitignore
@ -0,0 +1 @@
+/build
--- a/app/build.gradle
+++ b/app/build.gradle
@ -0,0 +1,54 @@
+plugins {
+    id 'com.android.application'
+    id 'org.jetbrains.kotlin.android'
+}
+
+android {
+    compileSdk 31
+
+    defaultConfig {
+        applicationId "com.dzeio.openhealth"
+        minSdk 21
+        targetSdk 31
+        versionCode 1
+        versionName "1.0"
+
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+    }
+
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+        }
+    }
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+    kotlinOptions {
+        jvmTarget = '1.8'
+    }
+    buildFeatures {
+        viewBinding true
+    }
+}
+
+dependencies {
+
+    implementation 'androidx.core:core-ktx:1.7.0'
+    implementation 'androidx.appcompat:appcompat:1.4.0'
+    implementation 'com.google.android.material:material:1.4.0'
+    implementation 'androidx.constraintlayout:constraintlayout:2.1.2'
+    implementation 'androidx.lifecycle:lifecycle-livedata-ktx:2.4.0'
+    implementation 'androidx.lifecycle:lifecycle-viewmodel-ktx:2.4.0'
+    implementation 'androidx.navigation:navigation-fragment-ktx:2.3.5'
+    implementation 'androidx.navigation:navigation-ui-ktx:2.3.5'
+    testImplementation 'junit:junit:4.13.2'
+    androidTestImplementation 'androidx.test.ext:junit:1.1.3'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
+
+    // Google Fit
+    implementation "com.google.android.gms:play-services-fitness:21.0.0"
+    implementation "com.google.android.gms:play-services-auth:20.0.0"
+}
--- a/app/proguard-rules.pro
+++ b/app/proguard-rules.pro
@ -0,0 +1,21 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile
--- a/app/src/androidTest/java/com/dzeio/openhealth/ExampleInstrumentedTest.kt
+++ b/app/src/androidTest/java/com/dzeio/openhealth/ExampleInstrumentedTest.kt
@ -0,0 +1,24 @@
+package com.dzeio.openhealth
+
+import androidx.test.platform.app.InstrumentationRegistry
+import androidx.test.ext.junit.runners.AndroidJUnit4
+
+import org.junit.Test
+import org.junit.runner.RunWith
+
+import org.junit.Assert.*
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * See [testing documentation](http://d.android.com/tools/testing).
+ */
+@RunWith(AndroidJUnit4::class)
+class ExampleInstrumentedTest {
+    @Test
+    fun useAppContext() {
+        // Context of the app under test.
+        val appContext = InstrumentationRegistry.getInstrumentation().targetContext
+        assertEquals("com.dzeio.openhealth", appContext.packageName)
+    }
+}
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@ -0,0 +1,29 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.dzeio.openhealth">
+
+    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
+    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
+    <uses-permission android:name="android.permission.ACTIVITY_RECOGNITION " />
+
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:theme="@style/Theme.OpenHealth">
+        <activity
+            android:name=".MainActivity"
+            android:exported="true"
+            android:label="@string/app_name"
+            android:theme="@style/Theme.OpenHealth.NoActionBar">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>
--- a/app/src/main/java/com/dzeio/openhealth/MainActivity.kt
+++ b/app/src/main/java/com/dzeio/openhealth/MainActivity.kt
@ -0,0 +1,73 @@
+package com.dzeio.openhealth
+
+import android.content.Intent
+import android.os.Bundle
+import android.util.Log
+import android.view.Menu
+import androidx.appcompat.app.AppCompatActivity
+import androidx.drawerlayout.widget.DrawerLayout
+import androidx.navigation.findNavController
+import androidx.navigation.ui.AppBarConfiguration
+import androidx.navigation.ui.navigateUp
+import androidx.navigation.ui.setupActionBarWithNavController
+import androidx.navigation.ui.setupWithNavController
+import com.dzeio.openhealth.databinding.ActivityMainBinding
+import com.google.android.material.navigation.NavigationView
+import com.google.android.material.snackbar.Snackbar
+
+class MainActivity : AppCompatActivity() {
+
+    private lateinit var appBarConfiguration: AppBarConfiguration
+    private lateinit var binding: ActivityMainBinding
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+
+        binding = ActivityMainBinding.inflate(layoutInflater)
+        setContentView(binding.root)
+
+        setSupportActionBar(binding.appBarMain.toolbar)
+
+        binding.appBarMain.fab.setOnClickListener { view ->
+            Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
+                .setAction("Action", null).show()
+        }
+        val drawerLayout: DrawerLayout = binding.drawerLayout
+        val navView: NavigationView = binding.navView
+        val navController = findNavController(R.id.nav_host_fragment_content_main)
+        // Passing each menu ID as a set of Ids because each
+        // menu should be considered as top level destinations.
+        appBarConfiguration = AppBarConfiguration(
+            setOf(
+                R.id.nav_home, R.id.nav_gallery, R.id.nav_slideshow
+            ), drawerLayout
+        )
+        setupActionBarWithNavController(navController, appBarConfiguration)
+        navView.setupWithNavController(navController)
+
+    }
+
+    override fun onCreateOptionsMenu(menu: Menu): Boolean {
+        // Inflate the menu; this adds items to the action bar if it is present.
+        menuInflater.inflate(R.menu.main, menu)
+        return true
+    }
+
+    override fun onSupportNavigateUp(): Boolean {
+        val navController = findNavController(R.id.nav_host_fragment_content_main)
+        return navController.navigateUp(appBarConfiguration) || super.onSupportNavigateUp()
+    }
+
+    override fun onRequestPermissionsResult(requestCode: Int, permissions: Array<String>,
+                                            grantResults: IntArray) {
+        super.onRequestPermissionsResult(requestCode, permissions, grantResults)
+        Log.d("MainActivity", "Result $requestCode")
+    }
+
+    override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
+        super.onActivityResult(requestCode, resultCode, data)
+        for (fragment in supportFragmentManager.primaryNavigationFragment!!.childFragmentManager.fragments) {
+            fragment.onActivityResult(requestCode, resultCode, data)
+        }
+    }
+}
--- a/app/src/main/java/com/dzeio/openhealth/connectors/GoogleFit.kt
+++ b/app/src/main/java/com/dzeio/openhealth/connectors/GoogleFit.kt
@ -0,0 +1,264 @@
+package com.dzeio.openhealth.connectors
+
+import android.Manifest
+import android.app.Activity
+import android.content.pm.PackageManager
+import android.os.Build
+import android.util.Log
+import androidx.annotation.RequiresApi
+import androidx.core.app.ActivityCompat
+import com.google.android.gms.auth.api.signin.GoogleSignIn
+import com.google.android.gms.fitness.Fitness
+import com.google.android.gms.fitness.FitnessOptions
+import com.google.android.gms.fitness.data.DataPoint
+import com.google.android.gms.fitness.data.DataSet
+import com.google.android.gms.fitness.data.DataSource
+import com.google.android.gms.fitness.data.DataType
+import com.google.android.gms.fitness.request.DataReadRequest
+import com.google.android.gms.fitness.request.DataSourcesRequest
+import com.google.android.gms.fitness.request.OnDataPointListener
+import com.google.android.gms.fitness.request.SensorRequest
+import java.time.Instant
+import java.time.LocalDateTime
+import java.time.ZoneId
+import java.util.concurrent.TimeUnit
+
+enum class ActionRequestCode {
+    FIND_DATA_SOURCES
+}
+
+class GoogleFit(
+    private val activity: Activity,
+) {
+    companion object {
+        const val TAG = "GoogleFitConnector"
+    }
+    private val fitnessOptions = FitnessOptions.builder()
+        .addDataType(DataType.TYPE_STEP_COUNT_CUMULATIVE)
+        .addDataType(DataType.TYPE_ACTIVITY_SEGMENT)
+        .addDataType(DataType.TYPE_SLEEP_SEGMENT)
+        .addDataType(DataType.TYPE_CALORIES_EXPENDED)
+        .addDataType(DataType.TYPE_BASAL_METABOLIC_RATE)
+        .addDataType(DataType.TYPE_POWER_SAMPLE)
+        .addDataType(DataType.TYPE_HEART_RATE_BPM)
+        .addDataType(DataType.TYPE_LOCATION_SAMPLE)
+        .addDataType(DataType.TYPE_WEIGHT)
+        .build()
+
+    private val runningQOrLater =
+        android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.Q
+
+    // [START dataPointListener_variable_reference]
+    // Need to hold a reference to this listener, as it's passed into the "unregister"
+    // method in order to stop all sensors from sending data to this listener.
+    private var dataPointListener: OnDataPointListener? = null
+
+    fun import() {
+        checkPermissionsAndRun(ActionRequestCode.FIND_DATA_SOURCES)
+    }
+
+    private fun checkPermissionsAndRun(actionRequestCode: ActionRequestCode) {
+        if (permissionApproved()) {
+            signIn(actionRequestCode)
+        } else {
+            requestRuntimePermissions(actionRequestCode)
+        }
+    }
+
+    private fun requestRuntimePermissions(requestCode: ActionRequestCode) {
+        val shouldProvideRationale =
+            ActivityCompat.shouldShowRequestPermissionRationale(activity, Manifest.permission.ACCESS_FINE_LOCATION)
+
+        // Provide an additional rationale to the user. This would happen if the user denied the
+        // request previously, but didn't check the "Don't ask again" checkbox.
+        requestCode.let {
+            if (shouldProvideRationale) {
+                Log.i(TAG, "Displaying permission rationale to provide additional context.")
+//                ProgressDialog.show(activity, "Waiting for authorization...", "")
+                ActivityCompat.requestPermissions(activity,
+                    arrayOf(Manifest.permission.ACCESS_FINE_LOCATION),
+                    requestCode.ordinal)
+            } else {
+                Log.i(TAG, "Requesting permission")
+                // Request permission. It's possible this can be auto answered if device policy
+                // sets the permission in a given state or the user denied the permission
+                // previously and checked "Never ask again".
+                ActivityCompat.requestPermissions(activity,
+                    arrayOf(Manifest.permission.ACCESS_FINE_LOCATION),
+                    requestCode.ordinal)
+            }
+        }
+    }
+
+    private fun permissionApproved(): Boolean {
+        val approved = if (runningQOrLater) {
+            PackageManager.PERMISSION_GRANTED == ActivityCompat.checkSelfPermission(
+                activity,
+                Manifest.permission.ACCESS_FINE_LOCATION)
+        } else {
+            true
+        }
+        return approved
+    }
+
+    fun signIn(requestCode: ActionRequestCode) {
+        if (oAuthPermissionsApproved()) {
+            performActionForRequestCode(requestCode)
+        } else {
+            requestCode.let {
+                GoogleSignIn.requestPermissions(
+                    activity,
+                    it.ordinal,
+                    getGoogleAccount(), fitnessOptions)
+            }
+        }
+    }
+
+    private fun oAuthPermissionsApproved() = GoogleSignIn.hasPermissions(getGoogleAccount(), fitnessOptions)
+
+    /**
+     * Gets a Google account for use in creating the Fitness client. This is achieved by either
+     * using the last signed-in account, or if necessary, prompting the user to sign in.
+     * `getAccountForExtension` is recommended over `getLastSignedInAccount` as the latter can
+     * return `null` if there has been no sign in before.
+     */
+    private fun getGoogleAccount() = GoogleSignIn.getAccountForExtension(activity, fitnessOptions)
+
+    /**
+     * Runs the desired method, based on the specified request code. The request code is typically
+     * passed to the Fit sign-in flow, and returned with the success callback. This allows the
+     * caller to specify which method, post-sign-in, should be called.
+     *
+     * @param requestCode The code corresponding to the action to perform.
+     */
+    fun performActionForRequestCode(requestCode: ActionRequestCode) = when (requestCode) {
+        ActionRequestCode.FIND_DATA_SOURCES -> findFitnessDataSources()
+    }
+
+    /** Finds available data sources and attempts to register on a specific [DataType].  */
+    private fun findFitnessDataSources() { // [START find_data_sources]
+        // Note: Fitness.SensorsApi.findDataSources() requires the ACCESS_FINE_LOCATION permission.
+        Fitness.getSensorsClient(activity, getGoogleAccount())
+            .findDataSources(
+                DataSourcesRequest.Builder()
+                    .setDataTypes(DataType.TYPE_LOCATION_SAMPLE)
+                    .setDataSourceTypes(DataSource.TYPE_RAW)
+                    .build())
+            .addOnSuccessListener { dataSources ->
+                for (dataSource in dataSources) {
+                    Log.i(TAG, "Data source found: $dataSource")
+                    Log.i(TAG, "Data Source type: " + dataSource.dataType.name)
+                    // Let's register a listener to receive Activity data!
+                    if (dataSource.dataType == DataType.TYPE_LOCATION_SAMPLE && dataPointListener == null) {
+                        Log.i(TAG, "Data source for LOCATION_SAMPLE found!  Registering.")
+                        registerFitnessDataListener(dataSource, DataType.TYPE_LOCATION_SAMPLE)
+                    }
+                }
+            }
+            .addOnFailureListener { e -> Log.e(TAG, "failed", e) }
+        // [END find_data_sources]
+    }
+
+    /**
+     * Registers a listener with the Sensors API for the provided [DataSource] and [DataType] combo.
+     */
+    private fun registerFitnessDataListener(dataSource: DataSource, dataType: DataType) {
+        // [START register_data_listener]
+        dataPointListener = OnDataPointListener { dataPoint ->
+            for (field in dataPoint.dataType.fields) {
+                val value = dataPoint.getValue(field)
+                Log.i(TAG, "Detected DataPoint field: ${field.name}")
+                Log.i(TAG, "Detected DataPoint value: $value")
+            }
+        }
+        Fitness.getSensorsClient(activity, getGoogleAccount())
+            .add(
+                SensorRequest.Builder()
+                    .setDataSource(dataSource) // Optional but recommended for custom data sets.
+                    .setDataType(dataType) // Can't be omitted.
+                    .setSamplingRate(10, TimeUnit.SECONDS)
+                    .build(),
+                dataPointListener!!
+            )
+            .addOnCompleteListener { task ->
+                if (task.isSuccessful) {
+                    Log.i(TAG, "Listener registered!")
+                } else {
+                    Log.e(TAG, "Listener not registered.", task.exception)
+                }
+            }
+        // [END register_data_listener]
+    }
+
+    @RequiresApi(Build.VERSION_CODES.O)
+    fun getHistory() {
+
+        val endTime = LocalDateTime.now().atZone(ZoneId.systemDefault())
+        val readRequest = DataReadRequest.Builder()
+            .aggregate(DataType.AGGREGATE_CALORIES_EXPENDED)
+            .bucketByActivityType(1, TimeUnit.SECONDS)
+            .setTimeRange(endTime.minusWeeks(1).toEpochSecond(), endTime.toEpochSecond(), TimeUnit.SECONDS)
+            .build()
+
+        Fitness.getHistoryClient(activity, GoogleSignIn.getAccountForExtension(activity, fitnessOptions))
+            .readData(readRequest)
+            .addOnSuccessListener { response ->
+                for (dataSet in response.buckets.flatMap { it.dataSets }) {
+                    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+                        dumpDataSet(dataSet)
+                    } else {
+                        Log.e(TAG, "DUMB SHIT")
+                    }
+                }
+
+            }
+    }
+
+    @RequiresApi(Build.VERSION_CODES.O)
+    fun dumpDataSet(dataSet: DataSet) {
+        Log.i(TAG, "Data returned for Data type: ${dataSet.dataType.name}")
+        for (dp in dataSet.dataPoints) {
+            Log.i(TAG,"Data point:")
+            Log.i(TAG,"\tType: ${dp.dataType.name}")
+            Log.i(TAG,"\tStart: ${dp.getStartTimeString()}")
+            Log.i(TAG,"\tEnd: ${dp.getEndTimeString()}")
+            for (field in dp.dataType.fields) {
+                Log.i(TAG,"\tField: ${field.name.toString()} Value: ${dp.getValue(field)}")
+            }
+        }
+    }
+
+    @RequiresApi(Build.VERSION_CODES.O)
+    fun DataPoint.getStartTimeString() = Instant.ofEpochSecond(this.getStartTime(TimeUnit.SECONDS))
+        .atZone(ZoneId.systemDefault())
+        .toLocalDateTime().toString()
+
+    @RequiresApi(Build.VERSION_CODES.O)
+    fun DataPoint.getEndTimeString() = Instant.ofEpochSecond(this.getEndTime(TimeUnit.SECONDS))
+        .atZone(ZoneId.systemDefault())
+        .toLocalDateTime().toString()
+
+
+    /** Unregisters the listener with the Sensors API.  */
+    private fun unregisterFitnessDataListener() {
+        if (dataPointListener == null) {
+            // This code only activates one listener at a time.  If there's no listener, there's
+            // nothing to unregister.
+            return
+        }
+        // [START unregister_data_listener]
+        // Waiting isn't actually necessary as the unregister call will complete regardless,
+        // even if called from within onStop, but a callback can still be added in order to
+        // inspect the results.
+        Fitness.getSensorsClient(activity, getGoogleAccount())
+            .remove(dataPointListener!!)
+            .addOnCompleteListener { task ->
+                if (task.isSuccessful && task.result!!) {
+                    Log.i(TAG, "Listener was removed!")
+                } else {
+                    Log.i(TAG, "Listener was not removed.")
+                }
+            }
+        // [END unregister_data_listener]
+    }
+}
--- a/app/src/main/java/com/dzeio/openhealth/ui/gallery/GalleryFragment.kt
+++ b/app/src/main/java/com/dzeio/openhealth/ui/gallery/GalleryFragment.kt
@ -0,0 +1,42 @@
+package com.dzeio.openhealth.ui.gallery
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.TextView
+import androidx.fragment.app.Fragment
+import androidx.lifecycle.ViewModelProvider
+import com.dzeio.openhealth.databinding.FragmentGalleryBinding
+
+class GalleryFragment : Fragment() {
+
+    private var _binding: FragmentGalleryBinding? = null
+
+    // This property is only valid between onCreateView and
+    // onDestroyView.
+    private val binding get() = _binding!!
+
+    override fun onCreateView(
+        inflater: LayoutInflater,
+        container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View {
+        val galleryViewModel =
+            ViewModelProvider(this).get(GalleryViewModel::class.java)
+
+        _binding = FragmentGalleryBinding.inflate(inflater, container, false)
+        val root: View = binding.root
+
+        val textView: TextView = binding.textGallery
+        galleryViewModel.text.observe(viewLifecycleOwner) {
+            textView.text = it
+        }
+        return root
+    }
+
+    override fun onDestroyView() {
+        super.onDestroyView()
+        _binding = null
+    }
+}
--- a/app/src/main/java/com/dzeio/openhealth/ui/gallery/GalleryViewModel.kt
+++ b/app/src/main/java/com/dzeio/openhealth/ui/gallery/GalleryViewModel.kt
@ -0,0 +1,13 @@
+package com.dzeio.openhealth.ui.gallery
+
+import androidx.lifecycle.LiveData
+import androidx.lifecycle.MutableLiveData
+import androidx.lifecycle.ViewModel
+
+class GalleryViewModel : ViewModel() {
+
+    private val _text = MutableLiveData<String>().apply {
+        value = "This is gallery Fragment"
+    }
+    val text: LiveData<String> = _text
+}
--- a/app/src/main/java/com/dzeio/openhealth/ui/home/HomeFragment.kt
+++ b/app/src/main/java/com/dzeio/openhealth/ui/home/HomeFragment.kt
@ -0,0 +1,120 @@
+package com.dzeio.openhealth.ui.home
+
+import android.app.Activity.RESULT_OK
+import android.content.Intent
+import android.content.pm.PackageManager
+import android.os.Build
+import android.os.Bundle
+import android.util.Log
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.fragment.app.Fragment
+import androidx.lifecycle.ViewModelProvider
+import com.dzeio.openhealth.connectors.ActionRequestCode
+import com.dzeio.openhealth.connectors.GoogleFit
+import com.dzeio.openhealth.databinding.FragmentHomeBinding
+
+class HomeFragment : Fragment() {
+
+    companion object {
+        const val TAG = "HomeFragment"
+    }
+
+    private var _binding: FragmentHomeBinding? = null
+
+    // This property is only valid between onCreateView and
+    // onDestroyView.
+    private val binding get() = _binding!!
+
+    private lateinit var fit: GoogleFit
+
+    override fun onCreateView(
+        inflater: LayoutInflater,
+        container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View {
+        val homeViewModel =
+            ViewModelProvider(this).get(HomeViewModel::class.java)
+
+        _binding = FragmentHomeBinding.inflate(inflater, container, false)
+        val root: View = binding.root
+
+        binding.button.setOnClickListener {
+            fit = GoogleFit(requireActivity())
+            fit.import()
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+                fit.getHistory()
+            }
+        }
+        return root
+    }
+
+    override fun onDestroyView() {
+        super.onDestroyView()
+        _binding = null
+    }
+
+    override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
+        super.onActivityResult(requestCode, resultCode, data)
+        Log.d(TAG, "Activity Result!")
+        when (resultCode) {
+            RESULT_OK -> {
+                fit.performActionForRequestCode(ActionRequestCode.FIND_DATA_SOURCES)
+            }
+            else -> {
+                Log.e(TAG, "Error: $requestCode, $resultCode")
+            }
+        }
+    }
+
+    override fun onRequestPermissionsResult(requestCode: Int, permissions: Array<String>,
+                                            grantResults: IntArray) {
+        when {
+            grantResults.isEmpty() -> {
+                // If user interaction was interrupted, the permission request
+                // is cancelled and you receive empty arrays.
+                Log.i(TAG, "User interaction was cancelled.")
+            }
+
+                    grantResults[0] == PackageManager.PERMISSION_GRANTED -> {
+                        Log.d(TAG, "Granted")
+                // Permission was granted.
+                val fitActionRequestCode = ActionRequestCode.values()[requestCode]
+                fitActionRequestCode.let {
+                    fit.signIn(ActionRequestCode.FIND_DATA_SOURCES)
+                }
+            }
+            else -> {
+                // Permission denied.
+
+                // In this Activity we've chosen to notify the user that they
+                // have rejected a core permission for the app since it makes the Activity useless.
+                // We're communicating this message in a Snackbar since this is a sample app, but
+                // core permissions would typically be best requested during a welcome-screen flow.
+
+                // Additionally, it is important to remember that a permission might have been
+                // rejected without asking the user for permission (device policy or "Never ask
+                // again" prompts). Therefore, a user interface affordance is typically implemented
+                // when permissions are denied. Otherwise, your app could appear unresponsive to
+                // touches or interactions which have required permissions.
+                Log.e(TAG, "Error")
+//                Snackbar.make(
+//                    findViewById(R.id.main_activity_view),
+//                    R.string.permission_denied_explanation,
+//                    Snackbar.LENGTH_INDEFINITE)
+//                    .setAction(R.string.settings) {
+//                        // Build intent that displays the App settings screen.
+//                        val intent = Intent()
+//                        intent.action = Settings.ACTION_APPLICATION_DETAILS_SETTINGS
+//                        val uri = Uri.fromParts("package",
+//                            BuildConfig.APPLICATION_ID, null)
+//                        intent.data = uri
+//                        intent.flags = Intent.FLAG_ACTIVITY_NEW_TASK
+//                        startActivity(intent)
+//                    }
+//                    .show()
+            }
+        }
+    }
+}
--- a/app/src/main/java/com/dzeio/openhealth/ui/home/HomeViewModel.kt
+++ b/app/src/main/java/com/dzeio/openhealth/ui/home/HomeViewModel.kt
@ -0,0 +1,13 @@
+package com.dzeio.openhealth.ui.home
+
+import androidx.lifecycle.LiveData
+import androidx.lifecycle.MutableLiveData
+import androidx.lifecycle.ViewModel
+
+class HomeViewModel : ViewModel() {
+
+    private val _text = MutableLiveData<String>().apply {
+        value = "This is home Fragment"
+    }
+    val text: LiveData<String> = _text
+}
--- a/app/src/main/java/com/dzeio/openhealth/ui/slideshow/SlideshowFragment.kt
+++ b/app/src/main/java/com/dzeio/openhealth/ui/slideshow/SlideshowFragment.kt
@ -0,0 +1,42 @@
+package com.dzeio.openhealth.ui.slideshow
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.TextView
+import androidx.fragment.app.Fragment
+import androidx.lifecycle.ViewModelProvider
+import com.dzeio.openhealth.databinding.FragmentSlideshowBinding
+
+class SlideshowFragment : Fragment() {
+
+    private var _binding: FragmentSlideshowBinding? = null
+
+    // This property is only valid between onCreateView and
+    // onDestroyView.
+    private val binding get() = _binding!!
+
+    override fun onCreateView(
+        inflater: LayoutInflater,
+        container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View {
+        val slideshowViewModel =
+            ViewModelProvider(this).get(SlideshowViewModel::class.java)
+
+        _binding = FragmentSlideshowBinding.inflate(inflater, container, false)
+        val root: View = binding.root
+
+        val textView: TextView = binding.textSlideshow
+        slideshowViewModel.text.observe(viewLifecycleOwner) {
+            textView.text = it
+        }
+        return root
+    }
+
+    override fun onDestroyView() {
+        super.onDestroyView()
+        _binding = null
+    }
+}
--- a/app/src/main/java/com/dzeio/openhealth/ui/slideshow/SlideshowViewModel.kt
+++ b/app/src/main/java/com/dzeio/openhealth/ui/slideshow/SlideshowViewModel.kt
@ -0,0 +1,13 @@
+package com.dzeio.openhealth.ui.slideshow
+
+import androidx.lifecycle.LiveData
+import androidx.lifecycle.MutableLiveData
+import androidx.lifecycle.ViewModel
+
+class SlideshowViewModel : ViewModel() {
+
+    private val _text = MutableLiveData<String>().apply {
+        value = "This is slideshow Fragment"
+    }
+    val text: LiveData<String> = _text
+}
--- a/app/src/main/res/drawable-v24/ic_launcher_foreground.xml
+++ b/app/src/main/res/drawable-v24/ic_launcher_foreground.xml
@ -0,0 +1,30 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:aapt="http://schemas.android.com/aapt"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="108"
+    android:viewportHeight="108">
+    <path android:pathData="M31,63.928c0,0 6.4,-11 12.1,-13.1c7.2,-2.6 26,-1.4 26,-1.4l38.1,38.1L107,108.928l-32,-1L31,63.928z">
+        <aapt:attr name="android:fillColor">
+            <gradient
+                android:endX="85.84757"
+                android:endY="92.4963"
+                android:startX="42.9492"
+                android:startY="49.59793"
+                android:type="linear">
+                <item
+                    android:color="#44000000"
+                    android:offset="0.0" />
+                <item
+                    android:color="#00000000"
+                    android:offset="1.0" />
+            </gradient>
+        </aapt:attr>
+    </path>
+    <path
+        android:fillColor="#FFFFFF"
+        android:fillType="nonZero"
+        android:pathData="M65.3,45.828l3.8,-6.6c0.2,-0.4 0.1,-0.9 -0.3,-1.1c-0.4,-0.2 -0.9,-0.1 -1.1,0.3l-3.9,6.7c-6.3,-2.8 -13.4,-2.8 -19.7,0l-3.9,-6.7c-0.2,-0.4 -0.7,-0.5 -1.1,-0.3C38.8,38.328 38.7,38.828 38.9,39.228l3.8,6.6C36.2,49.428 31.7,56.028 31,63.928h46C76.3,56.028 71.8,49.428 65.3,45.828zM43.4,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2c-0.3,-0.7 -0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C45.3,56.528 44.5,57.328 43.4,57.328L43.4,57.328zM64.6,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2s-0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C66.5,56.528 65.6,57.328 64.6,57.328L64.6,57.328z"
+        android:strokeWidth="1"
+        android:strokeColor="#00000000" />
+</vector>
--- a/app/src/main/res/drawable/ic_launcher_background.xml
+++ b/app/src/main/res/drawable/ic_launcher_background.xml
@ -0,0 +1,170 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="108"
+    android:viewportHeight="108">
+    <path
+        android:fillColor="#3DDC84"
+        android:pathData="M0,0h108v108h-108z" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M9,0L9,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,0L19,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,0L29,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,0L39,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,0L49,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,0L59,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,0L69,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,0L79,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M89,0L89,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M99,0L99,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,9L108,9"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,19L108,19"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,29L108,29"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,39L108,39"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,49L108,49"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,59L108,59"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,69L108,69"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,79L108,79"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,89L108,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,99L108,99"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,29L89,29"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,39L89,39"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,49L89,49"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,59L89,59"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,69L89,69"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,79L89,79"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,19L29,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,19L39,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,19L49,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,19L59,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,19L69,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,19L79,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+</vector>
--- a/app/src/main/res/drawable/ic_menu_camera.xml
+++ b/app/src/main/res/drawable/ic_menu_camera.xml
@ -0,0 +1,12 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24.0"
+    android:viewportHeight="24.0">
+    <path
+        android:fillColor="#FF000000"
+        android:pathData="M12,12m-3.2,0a3.2,3.2 0,1 1,6.4 0a3.2,3.2 0,1 1,-6.4 0" />
+    <path
+        android:fillColor="#FF000000"
+        android:pathData="M9,2L7.17,4H4c-1.1,0 -2,0.9 -2,2v12c0,1.1 0.9,2 2,2h16c1.1,0 2,-0.9 2,-2V6c0,-1.1 -0.9,-2 -2,-2h-3.17L15,2H9zm3,15c-2.76,0 -5,-2.24 -5,-5s2.24,-5 5,-5 5,2.24 5,5 -2.24,5 -5,5z" />
+</vector>
--- a/app/src/main/res/drawable/ic_menu_gallery.xml
+++ b/app/src/main/res/drawable/ic_menu_gallery.xml
@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24.0"
+    android:viewportHeight="24.0">
+    <path
+        android:fillColor="#FF000000"
+        android:pathData="M22,16V4c0,-1.1 -0.9,-2 -2,-2H8c-1.1,0 -2,0.9 -2,2v12c0,1.1 0.9,2 2,2h12c1.1,0 2,-0.9 2,-2zm-11,-4l2.03,2.71L16,11l4,5H8l3,-4zM2,6v14c0,1.1 0.9,2 2,2h14v-2H4V6H2z" />
+</vector>
--- a/app/src/main/res/drawable/ic_menu_slideshow.xml
+++ b/app/src/main/res/drawable/ic_menu_slideshow.xml
@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24.0"
+    android:viewportHeight="24.0">
+    <path
+        android:fillColor="#FF000000"
+        android:pathData="M4,6H2v14c0,1.1 0.9,2 2,2h14v-2H4V6zm16,-4H8c-1.1,0 -2,0.9 -2,2v12c0,1.1 0.9,2 2,2h12c1.1,0 2,-0.9 2,-2V4c0,-1.1 -0.9,-2 -2,-2zm-8,12.5v-9l6,4.5 -6,4.5z" />
+</vector>
--- a/app/src/main/res/drawable/side_nav_bar.xml
+++ b/app/src/main/res/drawable/side_nav_bar.xml
@ -0,0 +1,9 @@
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shape="rectangle">
+    <gradient
+        android:angle="135"
+        android:centerColor="#009688"
+        android:endColor="#00695C"
+        android:startColor="#4DB6AC"
+        android:type="linear" />
+</shape>
--- a/app/src/main/res/layout/activity_main.xml
+++ b/app/src/main/res/layout/activity_main.xml
@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.drawerlayout.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:id="@+id/drawer_layout"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:fitsSystemWindows="true"
+    tools:openDrawer="start">
+
+    <include
+        android:id="@+id/app_bar_main"
+        layout="@layout/app_bar_main"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent" />
+
+    <com.google.android.material.navigation.NavigationView
+        android:id="@+id/nav_view"
+        android:layout_width="wrap_content"
+        android:layout_height="match_parent"
+        android:layout_gravity="start"
+        android:fitsSystemWindows="true"
+        app:headerLayout="@layout/nav_header_main"
+        app:menu="@menu/activity_main_drawer" />
+</androidx.drawerlayout.widget.DrawerLayout>
--- a/app/src/main/res/layout/app_bar_main.xml
+++ b/app/src/main/res/layout/app_bar_main.xml
@ -0,0 +1,34 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.coordinatorlayout.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".MainActivity">
+
+    <com.google.android.material.appbar.AppBarLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:theme="@style/Theme.OpenHealth.AppBarOverlay">
+
+        <androidx.appcompat.widget.Toolbar
+            android:id="@+id/toolbar"
+            android:layout_width="match_parent"
+            android:layout_height="?attr/actionBarSize"
+            android:background="?attr/colorPrimary"
+            app:popupTheme="@style/Theme.OpenHealth.PopupOverlay" />
+
+    </com.google.android.material.appbar.AppBarLayout>
+
+    <include layout="@layout/content_main" />
+
+    <com.google.android.material.floatingactionbutton.FloatingActionButton
+        android:id="@+id/fab"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_gravity="bottom|end"
+        android:layout_marginEnd="@dimen/fab_margin"
+        android:layout_marginBottom="16dp"
+        app:srcCompat="@android:drawable/ic_dialog_email" />
+
+</androidx.coordinatorlayout.widget.CoordinatorLayout>
--- a/app/src/main/res/layout/content_main.xml
+++ b/app/src/main/res/layout/content_main.xml
@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    app:layout_behavior="@string/appbar_scrolling_view_behavior"
+    tools:showIn="@layout/app_bar_main">
+
+    <fragment
+        android:id="@+id/nav_host_fragment_content_main"
+        android:name="androidx.navigation.fragment.NavHostFragment"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        app:defaultNavHost="true"
+        app:layout_constraintLeft_toLeftOf="parent"
+        app:layout_constraintRight_toRightOf="parent"
+        app:layout_constraintTop_toTopOf="parent"
+        app:navGraph="@navigation/mobile_navigation" />
+</androidx.constraintlayout.widget.ConstraintLayout>
--- a/app/src/main/res/layout/fragment_gallery.xml
+++ b/app/src/main/res/layout/fragment_gallery.xml
@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".ui.gallery.GalleryFragment">
+
+    <TextView
+        android:id="@+id/text_gallery"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginStart="8dp"
+        android:layout_marginTop="8dp"
+        android:layout_marginEnd="8dp"
+        android:textAlignment="center"
+        android:textSize="20sp"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
+</androidx.constraintlayout.widget.ConstraintLayout>
--- a/app/src/main/res/layout/fragment_home.xml
+++ b/app/src/main/res/layout/fragment_home.xml
@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".ui.home.HomeFragment">
+
+    <Button
+        android:id="@+id/button"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="Button"
+        tools:layout_editor_absoluteX="157dp"
+        tools:layout_editor_absoluteY="341dp" />
+</androidx.constraintlayout.widget.ConstraintLayout>
--- a/app/src/main/res/layout/fragment_slideshow.xml
+++ b/app/src/main/res/layout/fragment_slideshow.xml
@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".ui.slideshow.SlideshowFragment">
+
+    <TextView
+        android:id="@+id/text_slideshow"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginStart="8dp"
+        android:layout_marginTop="8dp"
+        android:layout_marginEnd="8dp"
+        android:textAlignment="center"
+        android:textSize="20sp"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
+</androidx.constraintlayout.widget.ConstraintLayout>
--- a/app/src/main/res/layout/nav_header_main.xml
+++ b/app/src/main/res/layout/nav_header_main.xml
@ -0,0 +1,35 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:layout_width="match_parent"
+    android:layout_height="@dimen/nav_header_height"
+    android:background="@drawable/side_nav_bar"
+    android:gravity="bottom"
+    android:orientation="vertical"
+    android:paddingLeft="@dimen/activity_horizontal_margin"
+    android:paddingTop="@dimen/activity_vertical_margin"
+    android:paddingRight="@dimen/activity_horizontal_margin"
+    android:paddingBottom="@dimen/activity_vertical_margin"
+    android:theme="@style/ThemeOverlay.AppCompat.Dark">
+
+    <ImageView
+        android:id="@+id/imageView"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:contentDescription="@string/nav_header_desc"
+        android:paddingTop="@dimen/nav_header_vertical_spacing"
+        app:srcCompat="@mipmap/ic_launcher_round" />
+
+    <TextView
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:paddingTop="@dimen/nav_header_vertical_spacing"
+        android:text="@string/nav_header_title"
+        android:textAppearance="@style/TextAppearance.AppCompat.Body1" />
+
+    <TextView
+        android:id="@+id/textView"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="@string/nav_header_subtitle" />
+</LinearLayout>
--- a/app/src/main/res/menu/activity_main_drawer.xml
+++ b/app/src/main/res/menu/activity_main_drawer.xml
@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+<menu xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    tools:showIn="navigation_view">
+
+    <group android:checkableBehavior="single">
+        <item
+            android:id="@+id/nav_home"
+            android:icon="@drawable/ic_menu_camera"
+            android:title="@string/menu_home" />
+        <item
+            android:id="@+id/nav_gallery"
+            android:icon="@drawable/ic_menu_gallery"
+            android:title="@string/menu_gallery" />
+        <item
+            android:id="@+id/nav_slideshow"
+            android:icon="@drawable/ic_menu_slideshow"
+            android:title="@string/menu_slideshow" />
+    </group>
+</menu>
--- a/app/src/main/res/menu/main.xml
+++ b/app/src/main/res/menu/main.xml
@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<menu xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto">
+    <item
+        android:id="@+id/action_settings"
+        android:orderInCategory="100"
+        android:title="@string/action_settings"
+        app:showAsAction="never" />
+</menu>
--- a/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml
+++ b/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml
@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>
--- a/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml
+++ b/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml
@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>
--- a/app/src/main/res/mipmap-hdpi/ic_launcher.webp
+++ b/app/src/main/res/mipmap-hdpi/ic_launcher.webp
--- a/app/src/main/res/mipmap-hdpi/ic_launcher_round.webp
+++ b/app/src/main/res/mipmap-hdpi/ic_launcher_round.webp
--- a/app/src/main/res/mipmap-mdpi/ic_launcher.webp
+++ b/app/src/main/res/mipmap-mdpi/ic_launcher.webp
--- a/app/src/main/res/mipmap-mdpi/ic_launcher_round.webp
+++ b/app/src/main/res/mipmap-mdpi/ic_launcher_round.webp
--- a/app/src/main/res/mipmap-xhdpi/ic_launcher.webp
+++ b/app/src/main/res/mipmap-xhdpi/ic_launcher.webp
--- a/app/src/main/res/mipmap-xhdpi/ic_launcher_round.webp
+++ b/app/src/main/res/mipmap-xhdpi/ic_launcher_round.webp
--- a/app/src/main/res/mipmap-xxhdpi/ic_launcher.webp
+++ b/app/src/main/res/mipmap-xxhdpi/ic_launcher.webp
--- a/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.webp
+++ b/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.webp
--- a/app/src/main/res/mipmap-xxxhdpi/ic_launcher.webp
+++ b/app/src/main/res/mipmap-xxxhdpi/ic_launcher.webp
--- a/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.webp
+++ b/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.webp
--- a/app/src/main/res/navigation/mobile_navigation.xml
+++ b/app/src/main/res/navigation/mobile_navigation.xml
@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="utf-8"?>
+<navigation xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:id="@+id/mobile_navigation"
+    app:startDestination="@+id/nav_home">
+
+    <fragment
+        android:id="@+id/nav_home"
+        android:name="com.dzeio.openhealth.ui.home.HomeFragment"
+        android:label="@string/menu_home"
+        tools:layout="@layout/fragment_home" />
+
+    <fragment
+        android:id="@+id/nav_gallery"
+        android:name="com.dzeio.openhealth.ui.gallery.GalleryFragment"
+        android:label="@string/menu_gallery"
+        tools:layout="@layout/fragment_gallery" />
+
+    <fragment
+        android:id="@+id/nav_slideshow"
+        android:name="com.dzeio.openhealth.ui.slideshow.SlideshowFragment"
+        android:label="@string/menu_slideshow"
+        tools:layout="@layout/fragment_slideshow" />
+</navigation>
--- a/app/src/main/res/values-land/dimens.xml
+++ b/app/src/main/res/values-land/dimens.xml
@ -0,0 +1,3 @@
+<resources>
+    <dimen name="fab_margin">48dp</dimen>
+</resources>
--- a/app/src/main/res/values-night/themes.xml
+++ b/app/src/main/res/values-night/themes.xml
@ -0,0 +1,16 @@
+<resources xmlns:tools="http://schemas.android.com/tools">
+    <!-- Base application theme. -->
+    <style name="Theme.OpenHealth" parent="Theme.MaterialComponents.DayNight.DarkActionBar">
+        <!-- Primary brand color. -->
+        <item name="colorPrimary">@color/purple_200</item>
+        <item name="colorPrimaryVariant">@color/purple_700</item>
+        <item name="colorOnPrimary">@color/black</item>
+        <!-- Secondary brand color. -->
+        <item name="colorSecondary">@color/teal_200</item>
+        <item name="colorSecondaryVariant">@color/teal_200</item>
+        <item name="colorOnSecondary">@color/black</item>
+        <!-- Status bar color. -->
+        <item name="android:statusBarColor" tools:targetApi="l">?attr/colorPrimaryVariant</item>
+        <!-- Customize your theme here. -->
+    </style>
+</resources>
--- a/app/src/main/res/values-w1240dp/dimens.xml
+++ b/app/src/main/res/values-w1240dp/dimens.xml
@ -0,0 +1,3 @@
+<resources>
+    <dimen name="fab_margin">200dp</dimen>
+</resources>
--- a/app/src/main/res/values-w600dp/dimens.xml
+++ b/app/src/main/res/values-w600dp/dimens.xml
@ -0,0 +1,3 @@
+<resources>
+    <dimen name="fab_margin">48dp</dimen>
+</resources>
--- a/app/src/main/res/values/colors.xml
+++ b/app/src/main/res/values/colors.xml
@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="purple_200">#FFBB86FC</color>
+    <color name="purple_500">#FF6200EE</color>
+    <color name="purple_700">#FF3700B3</color>
+    <color name="teal_200">#FF03DAC5</color>
+    <color name="teal_700">#FF018786</color>
+    <color name="black">#FF000000</color>
+    <color name="white">#FFFFFFFF</color>
+</resources>
--- a/app/src/main/res/values/dimens.xml
+++ b/app/src/main/res/values/dimens.xml
@ -0,0 +1,8 @@
+<resources>
+    <!-- Default screen margins, per the Android Design guidelines. -->
+    <dimen name="activity_horizontal_margin">16dp</dimen>
+    <dimen name="activity_vertical_margin">16dp</dimen>
+    <dimen name="nav_header_vertical_spacing">8dp</dimen>
+    <dimen name="nav_header_height">176dp</dimen>
+    <dimen name="fab_margin">16dp</dimen>
+</resources>
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@ -0,0 +1,13 @@
+<resources>
+    <string name="app_name">OpenHealth</string>
+    <string name="navigation_drawer_open">Open navigation drawer</string>
+    <string name="navigation_drawer_close">Close navigation drawer</string>
+    <string name="nav_header_title">Android Studio</string>
+    <string name="nav_header_subtitle">android.studio@android.com</string>
+    <string name="nav_header_desc">Navigation header</string>
+    <string name="action_settings">Settings</string>
+
+    <string name="menu_home">Home</string>
+    <string name="menu_gallery">Gallery</string>
+    <string name="menu_slideshow">Slideshow</string>
+</resources>
--- a/app/src/main/res/values/themes.xml
+++ b/app/src/main/res/values/themes.xml
@ -0,0 +1,25 @@
+<resources xmlns:tools="http://schemas.android.com/tools">
+    <!-- Base application theme. -->
+    <style name="Theme.OpenHealth" parent="Theme.MaterialComponents.DayNight.DarkActionBar">
+        <!-- Primary brand color. -->
+        <item name="colorPrimary">@color/purple_500</item>
+        <item name="colorPrimaryVariant">@color/purple_700</item>
+        <item name="colorOnPrimary">@color/white</item>
+        <!-- Secondary brand color. -->
+        <item name="colorSecondary">@color/teal_200</item>
+        <item name="colorSecondaryVariant">@color/teal_700</item>
+        <item name="colorOnSecondary">@color/black</item>
+        <!-- Status bar color. -->
+        <item name="android:statusBarColor" tools:targetApi="l">?attr/colorPrimaryVariant</item>
+        <!-- Customize your theme here. -->
+    </style>
+
+    <style name="Theme.OpenHealth.NoActionBar">
+        <item name="windowActionBar">false</item>
+        <item name="windowNoTitle">true</item>
+    </style>
+
+    <style name="Theme.OpenHealth.AppBarOverlay" parent="ThemeOverlay.AppCompat.Dark.ActionBar" />
+
+    <style name="Theme.OpenHealth.PopupOverlay" parent="ThemeOverlay.AppCompat.Light" />
+</resources>
--- a/app/src/test/java/com/dzeio/openhealth/ExampleUnitTest.kt
+++ b/app/src/test/java/com/dzeio/openhealth/ExampleUnitTest.kt
@ -0,0 +1,17 @@
+package com.dzeio.openhealth
+
+import org.junit.Test
+
+import org.junit.Assert.*
+
+/**
+ * Example local unit test, which will execute on the development machine (host).
+ *
+ * See [testing documentation](http://d.android.com/tools/testing).
+ */
+class ExampleUnitTest {
+    @Test
+    fun addition_isCorrect() {
+        assertEquals(4, 2 + 2)
+    }
+}