ImageView子类化，使其圆角化。-ImageViewsubclasstomakeRoundedRightCorner

I am trying to take an image like these

我想拍这样的照片

and turn them into the top right 1/4 of the image. The image below is an example of what I need.

把它们变成图像的右上角1/4。下面的图片是我需要的一个例子。

**UPDATE: **

* *更新:* *

I have it (sort of) working, but scaling the image creates an unacceptable amount of distortion my code seems terribly inefficient. Any ideas on how to improve this code or a possible better approach?

我让它(某种程度上)工作，但是扩展映像会造成不可接受的程度的失真，我的代码似乎非常低效。对于如何改进这段代码或可能更好的方法有什么想法吗?

I am subclassing Volley's NetworkImageView.

我正在细分Volley的NetworkImageView。

Here is my code

这是我的代码

public static Bitmap getCroppedBitmap(Bitmap bmp, int radius) {
    Bitmap sbmp;

    if (bmp.getWidth() != radius || bmp.getHeight() != radius) {
        float smallest = Math.min(bmp.getWidth(), bmp.getHeight());
        float factor = smallest / radius;
        sbmp = Bitmap.createScaledBitmap(bmp, (int) (bmp.getWidth() / factor), (int) (bmp.getHeight() / factor),
                false);
    } else {
        sbmp = bmp;
    }

    Bitmap output = Bitmap.createBitmap(radius, radius, Config.ARGB_8888);
    Canvas canvas = new Canvas(output);

    final int color = 0xffa19774;
    final Paint paint = new Paint();
    final Rect rect = new Rect(0, 0, radius, radius);

    paint.setAntiAlias(true);
    paint.setFilterBitmap(true);
    paint.setDither(true);
    canvas.drawARGB(0, 0, 0, 0);
    paint.setColor(Color.parseColor("#BAB399"));
    canvas.drawCircle(radius / 2 + 0.7f, radius / 2 + 0.7f, radius / 2 + 0.1f, paint);
    paint.setXfermode(new PorterDuffXfermode(Mode.SRC_IN));
    canvas.drawBitmap(sbmp, rect, rect, paint);

    Bitmap bitmap = Bitmap.createBitmap(output, output.getWidth() / 2, 0, output.getWidth() / 2,
            output.getHeight() / 2);
    Bitmap scaledBmp = Bitmap.createScaledBitmap(bitmap, radius, radius, true);

    return scaledBmp;
}

3 个解决方案