get Masked Bitmap - Android Graphics

Android examples for Graphics:Bitmap Effect

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Description

get Masked Bitmap

Demo Code


//package com.java2s;

import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;

import android.graphics.Paint;
import android.graphics.PorterDuff;
import android.graphics.PorterDuffXfermode;

import android.os.Build;

public class Main {
    public static Bitmap getMaskedBitmap(final Bitmap source,
            final Bitmap mask) {
        final BitmapFactory.Options options = new BitmapFactory.Options();
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
            options.inMutable = true;//from w ww . ja va  2 s  .c  om
        }
        options.inPreferredConfig = Bitmap.Config.ARGB_8888;
        Bitmap bitmap;
        if (source.isMutable()) {
            bitmap = source;
        } else {
            bitmap = source.copy(Bitmap.Config.ARGB_8888, true);
            source.recycle();
        }
        bitmap.setHasAlpha(true);
        final Canvas canvas = new Canvas(bitmap);
        final Paint paint = new Paint();
        paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.DST_IN));
        canvas.drawBitmap(mask, 0, 0, paint);
        // mask.recycle();
        return bitmap;
    }
}

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