you've been waiting for this moment for so long

wear/build.gradle

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+apply plugin: 'com.android.application'
+
+android {
+    compileSdkVersion 28
+
+
+    defaultConfig {
+        applicationId "pl.szczodrzynski.edziennik"
+        minSdkVersion 23
+        targetSdkVersion 28
+        versionCode 1
+        versionName "1.0"
+        multiDexEnabled true
+    }
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+        }
+    }
+    compileOptions {
+        sourceCompatibility = '1.8'
+        targetCompatibility = '1.8'
+    }
+}
+
+dependencies {
+    implementation fileTree(dir: 'libs', include: ['*.jar'])
+
+    implementation 'com.google.android.support:wearable:2.4.0'
+    implementation 'com.google.android.gms:play-services-wearable:16.0.1'
+    implementation 'androidx.percentlayout:percentlayout:1.0.0-beta01'
+    implementation 'androidx.legacy:legacy-support-v4:1.0.0-beta01'
+    implementation 'androidx.recyclerview:recyclerview:1.0.0-beta01'
+    implementation 'androidx.wear:wear:1.0.0-beta01'
+    compileOnly 'com.google.android.wearable:wearable:2.4.0'
+}

wear/src/main/AndroidManifest.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="pl.szczodrzynski.edziennik">
+
+    <uses-feature android:name="android.hardware.type.watch" />
+
+    <!-- Required to act as a custom watch face. -->
+    <uses-permission android:name="android.permission.WAKE_LOCK" /> <!-- Required for complications to receive complication data and open the provider chooser. -->
+    <uses-permission android:name="com.google.android.wearable.permission.RECEIVE_COMPLICATION_DATA" />
+
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:supportsRtl="true"
+        android:theme="@android:style/Theme.DeviceDefault">
+        <meta-data
+            android:name="com.google.android.wearable.standalone"
+            android:value="false" />
+        <meta-data
+            android:name="com.google.android.gms.version"
+            android:value="@integer/google_play_services_version" />
+
+        <uses-library
+            android:name="com.google.android.wearable"
+            android:required="true" />
+
+        <activity
+            android:name=".MainActivity"
+            android:label="@string/app_name"
+            android:theme="@style/AppThemeDark">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <action android:name="android.intent.action.VIEW" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+        <activity
+            android:name="android.support.wearable.activity.ConfirmationActivity">
+        </activity>
+    </application>
+
+</manifest>

wear/src/main/java/pl/szczodrzynski/edziennik/MainActivity.java

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+package pl.szczodrzynski.edziennik;
+
+import android.app.Activity;
+import android.graphics.drawable.Drawable;
+import android.os.Bundle;
+import androidx.wear.widget.drawer.WearableDrawerLayout;
+import androidx.wear.widget.drawer.WearableDrawerView;
+import androidx.wear.widget.drawer.WearableNavigationDrawerView;
+import android.support.wearable.activity.WearableActivity;
+import android.util.Log;
+import android.view.View;
+import android.widget.ProgressBar;
+
+import com.google.android.gms.tasks.Task;
+import com.google.android.gms.wearable.CapabilityClient;
+import com.google.android.gms.wearable.CapabilityInfo;
+import com.google.android.gms.wearable.DataEvent;
+import com.google.android.gms.wearable.DataItem;
+import com.google.android.gms.wearable.Node;
+import com.google.android.gms.wearable.PutDataMapRequest;
+import com.google.android.gms.wearable.PutDataRequest;
+import com.google.android.gms.wearable.Wearable;
+
+import java.util.Arrays;
+import java.util.Set;
+
+public class MainActivity extends WearableActivity {
+
+    private static final String TAG = "MainActivity";
+    private ProgressBar progressBar;
+    private WearableDrawerLayout wearableDrawerLayout;
+    private WearableNavigationDrawerView mWearableNavigationDrawer;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_main);
+        // Enables Always-on
+        setAmbientEnabled();
+
+        progressBar = findViewById(R.id.progressBar);
+
+        wearableDrawerLayout = findViewById(R.id.drawer_layout);
+        wearableDrawerLayout.setDrawerStateCallback(new WearableDrawerLayout.DrawerStateCallback() {
+            @Override
+            public void onDrawerOpened(WearableDrawerLayout layout, WearableDrawerView drawerView) {
+                super.onDrawerOpened(layout, drawerView);
+            }
+
+            @Override
+            public void onDrawerClosed(WearableDrawerLayout layout, WearableDrawerView drawerView) {
+                super.onDrawerClosed(layout, drawerView);
+                progressBar.setVisibility(View.GONE);
+            }
+        });
+
+        mWearableNavigationDrawer = (WearableNavigationDrawerView) findViewById(R.id.top_navigation_drawer);
+        WearableNavigationDrawerView.WearableNavigationDrawerAdapter navigationDrawerAdapter = new NavigationDrawerAdapter(this);
+        mWearableNavigationDrawer.setAdapter(navigationDrawerAdapter);
+        mWearableNavigationDrawer.addOnItemSelectedListener(new WearableNavigationDrawerView.OnItemSelectedListener() {
+            @Override
+            public void onItemSelected(int i) {
+                //Toast.makeText(MainActivity.this, "Selected item "+i, Toast.LENGTH_SHORT).show();
+                progressBar.setVisibility(View.VISIBLE);
+            }
+        });
+        // Peeks navigation drawer on the top.
+        mWearableNavigationDrawer.getController().peekDrawer();
+
+        Wearable.getMessageClient(this).addListener(messageEvent -> {
+            Log.d(TAG, messageEvent.getPath()+" :: "+ Arrays.toString(messageEvent.getData()));
+        });
+
+        Task<CapabilityInfo> capabilityInfoTask =
+                Wearable.getCapabilityClient(this)
+                        .getCapability("edziennik_phone_app", CapabilityClient.FILTER_REACHABLE);
+        capabilityInfoTask.addOnCompleteListener((task) -> {
+            if (task.isSuccessful()) {
+                CapabilityInfo capabilityInfo = task.getResult();
+                assert capabilityInfo != null;
+                Set<Node> nodes;
+                nodes = capabilityInfo.getNodes();
+                Log.d(TAG, "Nodes "+nodes);
+            } else {
+                Log.d(TAG, "Capability request failed to return any results.");
+            }
+        });
+
+        Wearable.getDataClient(this).addListener(dataEventBuffer -> {
+            Log.d(TAG, "onDataChanged(): " + dataEventBuffer);
+
+            for (DataEvent event : dataEventBuffer) {
+                if (event.getType() == DataEvent.TYPE_CHANGED) {
+                    String path = event.getDataItem().getUri().getPath();
+                    Log.d(TAG, "Data "+path+ " :: "+Arrays.toString(event.getDataItem().getData()));
+                }
+            }
+        });
+
+        findViewById(R.id.test).setOnClickListener((v -> {
+            PutDataMapRequest putDataMapRequest = PutDataMapRequest.create("/ping");
+            putDataMapRequest.getDataMap().putLong("millis", System.currentTimeMillis());
+
+            PutDataRequest request = putDataMapRequest.asPutDataRequest();
+            request.setData("Hello".getBytes());
+            request.setUrgent();
+
+            Log.d(TAG, "Generating DataItem: " + request);
+
+            Task<DataItem> dataItemTask =
+                    Wearable.getDataClient(getApplicationContext()).putDataItem(request);
+            dataItemTask.addOnCompleteListener(task -> {
+                if (task.isSuccessful()) {
+
+                    Log.d(TAG, "success");
+                } else {
+                    Log.d(TAG, "Capability request failed to return any results.");
+                }
+            });
+        }));
+
+
+
+        // Block on a task and get the result synchronously (because this is on a background
+        // thread).
+        //DataItem dataItem = dataItemTask.getResult();
+
+        //Log.d(TAG, "DataItem saved: " + dataItem);
+
+    }
+
+
+    private class NavigationDrawerAdapter extends WearableNavigationDrawerView.WearableNavigationDrawerAdapter {
+        public NavigationDrawerAdapter(Activity activity) {
+
+        }
+
+        @Override
+        public CharSequence getItemText(int i) {
+            return "Item "+i;
+        }
+
+        @Override
+        public Drawable getItemDrawable(int i) {
+            return null;
+        }
+
+        @Override
+        public int getCount() {
+            return 5;
+        }
+    }
+}

wear/src/main/res/layout/activity_main.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<androidx.wear.widget.drawer.WearableDrawerLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:id="@+id/drawer_layout"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+    <FrameLayout
+        android:layout_width="match_parent"
+        android:layout_height="match_parent">
+
+        <ScrollView
+            android:id="@+id/content"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:nestedScrollingEnabled="true">
+
+            <LinearLayout
+                android:id="@+id/linear_layout"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:orientation="vertical">
+                <Button
+                    android:id="@+id/test"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:text="Send"/>
+            </LinearLayout>
+        </ScrollView>
+
+        <ProgressBar
+            android:id="@+id/progressBar"
+            style="?android:attr/progressBarStyle"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_gravity="center" />
+
+    </FrameLayout>
+
+    <androidx.wear.widget.drawer.WearableNavigationDrawerView
+        android:id="@+id/top_navigation_drawer"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:background="@color/colorPrimary"
+        app:navigationStyle="multiPage"/>
+</androidx.wear.widget.drawer.WearableDrawerLayout>

wear/src/main/res/values-round/strings.xml

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+<resources>
+    <string name="hello_world">Hello Round World!</string>
+</resources>

wear/src/main/res/values/colors.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="colorPrimary">#2196F3</color>
+    <color name="colorPrimaryDark">#1976D2</color>
+    <color name="colorAccent">#FF5722</color>
+    <color name="colorSection">#4CAF50</color>
+    <color name="background">#000000</color>
+    <color name="digital_text">#ffffff</color>
+</resources>

wear/src/main/res/values/dimens.xml

@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!--
+    Because the window insets on round devices are larger than 15dp, this padding only applies
+    to square screens.
+    -->
+    <dimen name="box_inset_layout_padding">0dp</dimen>
+
+    <!--
+    This padding applies to both square and round screens. The total padding between the buttons
+    and the window insets is box_inset_layout_padding (above variable) on square screens and
+    inner_frame_layout_padding (below variable) on round screens.
+    -->
+    <dimen name="inner_frame_layout_padding">5dp</dimen>
+</resources>

wear/src/main/res/values/strings.xml

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+<resources>
+    <string name="app_name">Szkolny.eu</string>
+    <!--
+    This string is used for square devices and overridden by hello_world in
+    values-round/strings.xml for round devices.
+    -->
+    <string name="hello_world">Hello Square World!</string>
+</resources>

wear/src/main/res/values/styles.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+
+    <style name="AppThemeDark" parent="android:Theme.Material.NoActionBar" >
+        <item name="android:colorPrimary">@color/colorPrimary</item>
+        <item name="android:colorPrimaryDark">@color/colorPrimaryDark</item>
+        <item name="android:colorAccent">@color/colorAccent</item>
+    </style>
+</resources>

wear/src/main/res/values/wear.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string-array name="android_wear_capabilities">
+        <item>edziennik_wear_app</item>
+    </string-array>
+</resources>