Friday, September 28, 2012

Convert a Drawable to bitmap

It's a example to convert a local drawable to bitmap, then display on ImageView.

Convert a Drawable to bitmap


package com.example.androidcolor;

import android.os.Bundle;
import android.app.Activity;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.widget.ImageView;

public class MainActivity extends Activity {
 
 ImageView targetImage;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        targetImage = (ImageView)findViewById(R.id.target);
        
        //Load bitmap locally in APK
        Bitmap srcBitmapLocal = BitmapFactory.decodeResource(
          getApplicationContext().getResources(),
          R.drawable.ic_launcher);
        targetImage.setImageBitmap(srcBitmapLocal);
        
    }

}


2 comments:

dev said...

If there are multiple images in the drawable folder, then how will each image be retrieved and converted into a bitmap?

Andr.oid Eric said...

It is specified in the second parameter in BitmapFactory.decodeResource() calling.