Fixed bug where app shortcuts wouldn't work when app was already open

app/src/main/AndroidManifest.xml

@@ -20,7 +20,8 @@
         android:supportsRtl="true"
         android:theme="@style/Theme.Phonograph.Light"
         tools:ignore="UnusedAttribute">
-        <activity android:name=".ui.activities.MainActivity">
+        <activity android:name=".ui.activities.MainActivity"
+            android:launchMode="singleInstance">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
                 <action android:name="android.intent.action.MUSIC_PLAYER" />
@@ -175,7 +176,7 @@
             android:label="@string/report_an_issue" />
         <activity
             android:name=".appshortcuts.AppShortcutLauncherActivity"
-            android:exported="true" />
+            android:theme="@android:style/Theme.Translucent.NoTitleBar"/>
     </application>
 
 </manifest>

app/src/main/java/com/kabouzeid/gramophone/ui/activities/MainActivity.java

@@ -268,6 +268,13 @@ public class MainActivity extends AbsSlidingMusicPanelActivity {
         handlePlaybackIntent(getIntent());
     }
 
+    //Called when there's already an instance of MainActivity
+    @Override
+    protected void onNewIntent(Intent intent) {
+        super.onNewIntent(intent);
+        handlePlaybackIntent(intent);
+    }
+
     @Override
     public boolean onOptionsItemSelected(@NonNull MenuItem item) {
         if (item.getItemId() == android.R.id.home) {

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

@@ -48,4 +48,13 @@
         <item name="android:transitionName" tools:ignore="NewApi">toolbar</item>
     </style>
 
+    <style name="Theme.Transparent" parent="android:Theme">
+        <item name="android:windowBackground">@android:color/transparent</item>
+        <item name="android:windowNoTitle">true</item>
+        <item name="android:windowIsTranslucent">true</item>
+        <item name="android:windowContentOverlay">@null</item>
+        <item name="android:windowIsFloating">true</item>
+        <item name="android:backgroundDimEnabled">false</item>
+    </style>
+
 </resources>