Resizing a Bitmap

Hey everyone,

Below is a snippet of code that will allow you to resize a Bitmap.

public Bitmap getResizedBitmap(Bitmap bm, int newHeight, int newWidth) {

int width = bm.getWidth();

int height = bm.getHeight();

float scaleWidth = ((float) newWidth) / width;

float scaleHeight = ((float) newHeight) / height;

// create a matrix for the manipulation

Matrix matrix = new Matrix();

// resize the bit map

matrix.postScale(scaleWidth, scaleHeight);

// recreate the new Bitmap

Bitmap resizedBitmap = Bitmap.createBitmap(bm, 0, 0, width, height, matrix, false);

return resizedBitmap;

}

Pretty self explanatory – simply input the original Bitmap object and the desired dimensions of the Bitmap, and this method will return to you the newly resized Bitmap!

– jwei