[Android] Convert bitmap to file

//assume that variable b is Bitmap instance

String extStorageDirectory = Environment.getExternalStorageDirectory().toString();
OutputStream outStream = null;
File file = new File(extStorageDirectory, "er.PNG");
try {
    outStream = new FileOutputStream(file);
    b.compress(Bitmap.CompressFormat.PNG, 100, outStream);
    outStream.flush();
    outStream.close();
}
catch(Exception e)
{}

 

 

 

Reference : http://stackoverflow.com/questions/649154/android-bitmap-save-to-location