Question

这是我的代码我想缩放我的可绘制图像并设置图像视图请帮助我在我的代码中，我想缩放 bitmap1 ，请检查我的代码

         protected Bitmap murge() 
         { 
        Murge_Bitmap = null;
        Murge_Bitmap = Bitmap.createBitmap(600, 600, Bitmap.Config.ARGB_8888);
        Canvas c = new Canvas(Murge_Bitmap);
        Resources res = getResources(); 
        bitmap1 = BitmapFactory.decodeResource(res, R.drawable.sample_pic); 
        Bitmap bitmap2=Bitmap.createScaledBitmap(bitmap1, 600, 600, true);

        Drawable drawable1 = new BitmapDrawable(Bitmap_recieve);
        Drawable drawable2 = new BitmapDrawable(bitmap2);
         //   c.drawBitmap(Murge_Bitmap, 500,500, null);
        drawable1.setBounds(200, 200, 400, 400);
        drawable2.setBounds(200, 240, 400, 400);
        drawable1.draw(c);
        drawable2.draw(c);


        return Murge_Bitmap;
             }

Answer 1

你可以用这个：解码资源并使用scalingfactor

将其传递给此函数

public static Bitmap ScaleBitmap(Bitmap bm, float scalingFactor) {
    int scaleHeight = (int) (bm.getHeight() * scalingFactor);
    int scaleWidth = (int) (bm.getWidth() * scalingFactor);
    return Bitmap.createScaledBitmap(bm, scaleWidth, scaleHeight, true);
}

缩放因子的

指的是这个 Scale factor for xxhdpi android?

如何在android中缩放图像

1 个答案: