android - 如何在 android 中以椭圆形或 mask 形状裁剪图像？

Question

我正在做相机应用程序。我有方形的捕获和裁剪图像。但我需要椭圆形或人脸形状。怎么来的？

Answer 1

我使用了以下方法并将捕获的位图图像传递给此方法。它会起作用。

public Bitmap getRoundedShape(Bitmap scaleBitmapImage) {
        int targetWidth = 125;
        int targetHeight = 125;

        Bitmap targetBitmap = Bitmap.createBitmap(targetWidth,
                targetHeight, Bitmap.Config.ARGB_8888);

        Canvas canvas = new Canvas(targetBitmap);
        Path path = new Path();
        path.addCircle(
                ((float) targetWidth - 1) / 2,
                ((float) targetHeight - 1) / 2,
                (Math.min(((float) targetWidth), ((float) targetHeight)) / 2),
                Path.Direction.CCW);

        canvas.clipPath(path);
        Bitmap sourceBitmap = scaleBitmapImage;
        canvas.drawBitmap(
                sourceBitmap,
                new Rect(0, 0, sourceBitmap.getWidth(), sourceBitmap
                        .getHeight()), new Rect(0, 0, targetWidth,
                        targetHeight), p);
        return targetBitmap;
    }

输出如下:-