Chat Heads V2

Ok so after a lot of requests, lot of fuss and some busy office time, here is my V2 for Chat Heads !

This just extends the previous blog post & gives a Chat Head on an Incoming SMS. This blog post should be a starting guide if your planning to include chat head like notification for your upcoming android app.

So what are we waiting for ? Let's begin :

================================================================
ChatHeadService.java
================================================================

package com.example.testincoming;

import android.app.Service;
import android.content.Intent;
import android.graphics.PixelFormat;
import android.os.IBinder;
import android.util.Log;
import android.view.Gravity;
import android.view.MotionEvent;
import android.view.View;
import android.view.WindowManager;
import android.widget.ImageView;

public class ChatHeadService extends Service {
String from,msg;
   private WindowManager windowManager;
   private ImageView chatHead;
   WindowManager.LayoutParams params;
   
   @Override public IBinder onBind(Intent intent) {
     // Not used
    from = intent.getStringExtra("From");
    msg = intent.getStringExtra("Msg");
     return null;
   }

   @Override public void onCreate() {
     super.onCreate();

     windowManager = (WindowManager) getSystemService(WINDOW_SERVICE);
  
     chatHead = new ImageView(this);
     chatHead.setImageResource(R.drawable.ic_launcher);

    params = new WindowManager.LayoutParams(
         WindowManager.LayoutParams.WRAP_CONTENT,
         WindowManager.LayoutParams.WRAP_CONTENT,
         WindowManager.LayoutParams.TYPE_PHONE,
         WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE,
         PixelFormat.TRANSLUCENT);

     params.gravity = Gravity.TOP | Gravity.LEFT;
     params.x = 0;
     params.y = 100;

     windowManager.addView(chatHead, params);
     
     chatHead.setOnTouchListener(new View.OnTouchListener() {
        private int initialX;
        private int initialY;
        private float initialTouchX;
        private float initialTouchY;

        @Override 
        public boolean onTouch(View v, MotionEvent event) {
          switch (event.getAction()) {
            case MotionEvent.ACTION_DOWN:
              initialX = params.x;
              initialY = params.y;
              initialTouchX = event.getRawX();
              initialTouchY = event.getRawY();
              Intent i = new Intent(getBaseContext(),MainActivity.class);
              i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_SINGLE_TOP);
                    i.setClass(getBaseContext(), MainActivity.class);
                    i.putExtra("Msg", msg);
                    i.putExtra("From", from);
              startActivity(i);
              return true;
            case MotionEvent.ACTION_UP:
              return true;
            case MotionEvent.ACTION_MOVE:
             
            
              params.x = initialX + (int) (event.getRawX() - initialTouchX);
              params.y = initialY + (int) (event.getRawY() - initialTouchY);
              windowManager.updateViewLayout(chatHead, params);
              return true;
          }
          return false;
        }
      });

   }
   
  @Override
  public int onStartCommand(Intent intent, int flags, int startId) {
   // TODO Auto-generated method stub
    from = intent.getStringExtra("From");
    msg = intent.getStringExtra("Msg");
    Log.d("In Start", "In start");
   return startId;
   
  }
  
 
   
   @Override
   public void onDestroy() {
     super.onDestroy();
     if (chatHead != null) windowManager.removeView(chatHead);
    
 }

So what did i change in this version :

1) We now start a activity from the service on Touch passing in the SMS Text received from the Broadcast Receiver.

2) The Activity Layout is completely empty except for a Absolute Layout as its parent 

3) I have set the theme of the Application to a Dialog Theme.

================================================================
MainActivity.java
================================================================

package com.example.testincoming;

import android.os.Bundle;
import android.app.Activity;
import android.app.ActivityOptions;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.util.Log;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;

public class MainActivity extends Activity {
Button b ;
String from,msg;
ChatHeadService c = new ChatHeadService();
 @Override
 protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_main);
  Intent incomingIntent = getIntent();
  from = incomingIntent.getStringExtra("From");
  msg = incomingIntent.getStringExtra("Msg");
  Log.d("Activity", "Came in activity");
 
  AlertDialog.Builder builder = new AlertDialog.Builder(this);
     builder.setTitle(from);
     builder.setMessage(msg);
     Log.d("Activity", "Came in dialog");
     builder.setPositiveButton("OK", new DialogInterface.OnClickListener() {
 
  @Override
  public void onClick(DialogInterface dialog, int which) {
   // TODO Auto-generated method stub
   Log.d("Activity", "Came in OK ");
   MainActivity.this.finish();
  }
 });
     
     builder.show();
  
     
    
 }
 @Override
 public boolean onCreateOptionsMenu(Menu menu) {
  // Inflate the menu; this adds items to the action bar if it is present.
  getMenuInflater().inflate(R.menu.main, menu);
  return true;
 }

 
 
}

Changes in this version in this Activity:

1) We now create a Dialog and take the text passed in from the Service

2) I set the sender's number/Name as the Dialog Title & the content of the SMS as the body of the Dialog.

3) I have set up a button on the dialog which on Click closes the dialog by finishing the activity.


================================================================
SmsListener.java

================================================================

package com.example.testincoming;



import android.animation.AnimatorSet.Builder;
import android.app.AlertDialog;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.os.Bundle;
import android.telephony.SmsMessage;
import android.util.Log;
import android.widget.Toast;

public class SmsListener extends BroadcastReceiver{

   

    @Override
    public void onReceive(Context context, Intent intent) {
        // TODO Auto-generated method stub

        if(intent.getAction().equals("android.provider.Telephony.SMS_RECEIVED")){
            Bundle bundle = intent.getExtras();           //---get the SMS message passed in---
            SmsMessage[] msgs = null;
            String msg_from;
            if (bundle != null){
                //---retrieve the SMS message received---
                try{
                 Log.d("test", "came here!");
                    Object[] pdus = (Object[]) bundle.get("pdus");
                    msgs = new SmsMessage[pdus.length];
                    int length = msgs.length;
                    for(int i=0; i<length;i++){
                        msgs[i] = SmsMessage.createFromPdu((byte[])pdus[i]);
                        msg_from = msgs[i].getOriginatingAddress();
                        String msgBody = msgs[i].getMessageBody();
                        Toast.makeText(context, msgBody, 550).show();
                       
                        Intent chatHead = new Intent(context, ChatHeadService.class);
                        chatHead.putExtra("Msg", msgBody);
                        chatHead.putExtra("From", msg_from);
                      
                        context.startService(chatHead);
                        Log.d("msgBody : ", msgBody);
                    }
                }catch(Exception e){
                            Log.d("Exception caught",e.getMessage());
                }
            }
        }
    }
}

 ================================================================

Let's see what I did in the above class :

1) I create a Broadcast receiver which listens for Incoming SMS

2) I read the sms Text received & pass the sender Number , Msg to ChatHeadService class.

================================================================

So thats all that you need , dont forget to add appropriate permissions in the Manifest.

For any queries , drop me a comment !

Thanks