add an initial widget

app/src/main/AndroidManifest.xml

@@ -24,5 +24,13 @@
 
         <service android:name="musicplayer.simplemobiletools.com.MusicService"/>
 
+        <receiver android:name=".MyAppWidgetProvider">
+            <intent-filter>
+                <action android:name="android.appwidget.action.APPWIDGET_UPDATE"/>
+            </intent-filter>
+            <meta-data
+                android:name="android.appwidget.provider"
+                android:resource="@xml/widget_info"/>
+        </receiver>
     </application>
 </manifest>

app/src/main/java/musicplayer/simplemobiletools/com/MyAppWidgetProvider.java

@@ -0,0 +1,7 @@
+package musicplayer.simplemobiletools.com;
+
+import android.appwidget.AppWidgetProvider;
+
+public class MyAppWidgetProvider extends AppWidgetProvider {
+
+}

app/src/main/res/layout/widget.xml

@@ -0,0 +1,78 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:background="@android:color/black"
+                android:gravity="center_horizontal">
+
+    <TextView
+        android:id="@+id/songTitle"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginLeft="@dimen/activity_margin"
+        android:layout_marginRight="@dimen/activity_margin"
+        android:layout_marginTop="@dimen/medium_padding"
+        android:ellipsize="end"
+        android:gravity="center"
+        android:lines="1"
+        android:textColor="@android:color/white"
+        android:textSize="18sp"/>
+
+    <TextView
+        android:id="@+id/songArtist"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_below="@+id/songTitle"
+        android:layout_marginBottom="@dimen/medium_padding"
+        android:layout_marginLeft="@dimen/activity_margin"
+        android:layout_marginRight="@dimen/activity_margin"
+        android:ellipsize="end"
+        android:gravity="center"
+        android:lines="1"
+        android:textColor="@android:color/white"
+        android:textSize="16sp"/>
+
+    <LinearLayout
+        android:id="@+id/controls"
+        android:layout_width="match_parent"
+        android:layout_height="60dp"
+        android:layout_below="@+id/songArtist"
+        android:orientation="horizontal">
+
+        <ImageView
+            android:id="@+id/previousBtn"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:layout_weight="1"
+            android:paddingBottom="@dimen/medium_padding"
+            android:paddingTop="@dimen/medium_padding"
+            android:src="@mipmap/previous_white"/>
+
+        <ImageView
+            android:id="@+id/playPauseBtn"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:layout_weight="1"
+            android:paddingBottom="@dimen/medium_padding"
+            android:paddingTop="@dimen/medium_padding"
+            android:src="@mipmap/play_white"/>
+
+        <ImageView
+            android:id="@+id/nextBtn"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:layout_weight="1"
+            android:paddingBottom="@dimen/medium_padding"
+            android:paddingTop="@dimen/medium_padding"
+            android:src="@mipmap/next_white"/>
+
+        <ImageView
+            android:id="@+id/stopBtn"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:layout_weight="1"
+            android:paddingBottom="@dimen/medium_padding"
+            android:paddingTop="@dimen/medium_padding"
+            android:src="@mipmap/stop_white"/>
+    </LinearLayout>
+</RelativeLayout>

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

@@ -1,4 +1,5 @@
 <resources>
     <dimen name="activity_margin">16dp</dimen>
     <dimen name="song_item_padding">8dp</dimen>
+    <dimen name="medium_padding">10dp</dimen>
 </resources>

app/src/main/res/xml/widget_info.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<appwidget-provider xmlns:android="http://schemas.android.com/apk/res/android"
+                    android:initialLayout="@layout/widget"
+                    android:minHeight="110dp"
+                    android:minWidth="250dp">
+</appwidget-provider>