Android Service to show toast

Question

This code is supposed to use a service to show a toast message. There are no errors, but it doesn't show the toast.

main activity

public class MainActivity extends Activity {  @Override protected void onCreate(Bundle savedInstanceState) {     super.onCreate(savedInstanceState);     setContentView(R.layout.activity_main);     Intent i= new Intent(this, BackgroundMusic.class);     this.startService(i);   }    } 

service (its called Background Music but for now it is supposed to show a toast message)

public class BackgroundMusic extends IntentService {   public BackgroundMusic() {       super("BackgroundMusic");   }     @Override   protected void onHandleIntent(Intent intent) {       // Normally we would do some work here, like download a file.       // For our sample, we just sleep for 5 seconds.      Context context = getApplicationContext();      CharSequence text = "Hello toast!";      int duration = Toast.LENGTH_SHORT;       Toast toast = Toast.makeText(context, text, duration);      toast.show();  }    } 

manifest

<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.example.starwars" android:versionCode="1" android:versionName="1.0" >  <uses-sdk     android:minSdkVersion="8"     android:targetSdkVersion="18" />  <application     android:allowBackup="true"     android:debuggable="true"     android:icon="@drawable/ic_launcher"     android:label="@string/app_name"     android:theme="@style/AppTheme" >      <service android:name=".BackgroundMusic" />     <activity         android:name="com.example.starwars.MainActivity"         android:label="@string/app_name" >         <intent-filter>             <action android:name="android.intent.action.MAIN" />              <category android:name="android.intent.category.LAUNCHER" />         </intent-filter>     </activity>     <activity android:label="@string/app_name" android:name="BackgroundMusic"/> </application>  </manifest> 

Answer 1

Try this:

new Handler(Looper.getMainLooper()).post(new Runnable() {      @Override     public void run() {             Toast.makeText(YourService.this.getApplicationContext(),"My Awesome service toast...",Toast.LENGTH_SHORT).show();             }         });