Android show dialog like with GoSMS

Question

in Gosms application, we want to see new received sms message in phone desktop and i want to have this ability in own appication. i'm try simple use and show AlertDialog in onStop() like with this:

protected void onStop() {
        builder.setMessage("Test message")
                .setCancelable(true)
                .setPositiveButton("OK", new DialogInterface.OnClickListener() {
                    public void onClick(DialogInterface dialog, int id) {
                        dialog.cancel();
                    }
                });
        AlertDialog alert = builder.create();
        alert.show();
        super.onStop();
        Log.e(" onStop","");
    }

but this could not work correctly. after that i'm try to show this dialog by service. all ways dont work correctly for me. please help me ti have this ability

ScreenShot:

Answer 1

You need to detect whether your app is currently in background or foreground.

Approach :

1. Add a BroadcastReceiver to listen the incoming message
2. Check whether your app is in foreground or not
3. If it is in background, show the dialog box

Code Snippet :

Implement custom Application class which changes the application status

public class MyApplication extends Application {

  public static boolean isActivityVisible() {
    return activityVisible;
  }  

  public static void activityResumed() {
    activityVisible = true;
  }

  public static void activityPaused() {
    activityVisible = false;
  }

  private static boolean activityVisible;
}

Add onPause and onResume to every Activity in the project to change the application status :

@Override
protected void onResume() {
  super.onResume();
  MyApplication.activityResumed();
}

@Override
protected void onPause() {
  super.onPause();
  MyApplication.activityPaused();
}

Add the permission and register the receiver in manifest :

<uses-permission android:name="android.permission.RECEIVE_SMS"></uses-permission>
<uses-permission android:name="android.permission.READ_SMS"></uses-permission>
     <receiver android:name=".SMSBroadcastReceiver">
            <intent-filter>
                <action android:name="android.provider.Telephony.SMS_RECEIVED"/>
            </intent-filter>
        </receiver>

SMSBroadcastReceiver :

public class SMSBroadcastReceiver extends BroadcastReceiver{

@Override
public void onReceive(Context context, Intent intent) {
    // TODO Auto-generated method stub
    Bundle bundle = intent.getExtras();
    SmsMessage[] msgs = null;
    String str = "no message received";
    if(bundle != null){

        Object[] pdus = (Object[]) bundle.get("pdus");
        msgs = new SmsMessage[pdus.length];
        for(int i=0; i<msgs.length;i++){

            msgs[i]= SmsMessage.createFromPdu((byte[])pdus[i]);
            str += "SMS from Phone No: " +msgs[i].getOriginatingAddress();
            str +="\n"+"Message is: ";
            str += msgs[i].getMessageBody().toString();
            str +="\n";
        }

        Toast.makeText(context, str, Toast.LENGTH_SHORT).show(); //contact number and the message

     // Now as soon as you get the message check whether your application is running or not and show the dialog

        if(!MyAppliction.isActivityVisible())
       {
               // code to show a dialog box
       }
    }
}}