Question

I am making an application in Android, which requires sending bitmap object from one activity and displaying that bitmap object sent on the second activity page. But , I am getting a blank screen

Here is a sample of my code for sending the Bitmap object :-

Intent intent = new Intent(Display2.this, Display3.class);
ImageView iv = (ImageView) findViewById(R.id.imageView1);
Bitmap bitmap = Bitmap.createBitmap(iv.getWidth(), iv.getHeight(), Bitmap.Config.RGB_565);
intent.putExtra("BitmapImage", bitmap);
startActivity(intent);

Now the part of code on second activity to retrieve the sent object and displaying it on screen :-

public class Display3 extends Activity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        // TODO Auto-generated method stub
        super.onCreate(savedInstanceState);
        Bitmap bitmap = (Bitmap)getIntent().getParcelableExtra("BitmapImage");
        ImageView myIV = (ImageView) findViewById(R.id.imageView1);
        bitmap = bitmap.createBitmap(myIV.getWidth(), myIV.getHeight(), Bitmap.Config.RGB_565);
        myIV.setImageBitmap(bitmap);
        setContentView(R.layout.display3);

    }
}

can anyone suggest whats wrong in this part ?

Thanks !

Answer 1

Bitmap implements Parcelable object, so you could always pass it in the intent like below :

Intent intent = new Intent(this, NewActivity.class);
intent.putExtra("BitmapImage", bitmap);

and retrieve it on the other end:

Bitmap bitmap = (Bitmap) intent.getParcelableExtra("BitmapImage");