图像周围带有红色圆形边框的 Android Piccaso

Question

我正在使用 Piccaso 库制作圆形图像，但不知何故我无法在图像周围添加红色圆形边框。我正在使用下面的 Tranform 类来做到这一点:

ublic class RedCircleTransform implements Transformation {
        int mBorderSize;

        @Override
        public Bitmap transform(Bitmap source) {
            int size = Math.min(source.getWidth(), source.getHeight());

            int x = (source.getWidth() - size) / 2;
            int y = (source.getHeight() - size) / 2;

            Bitmap squaredBitmap = Bitmap.createBitmap(source, x, y, size, size);
            if (squaredBitmap != source) {
                source.recycle();
            }

            Bitmap bitmap = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888);

            Canvas canvas = new Canvas(bitmap);
            Paint paint = new Paint();
            BitmapShader shader = new BitmapShader(squaredBitmap,
                    BitmapShader.TileMode.CLAMP, BitmapShader.TileMode.CLAMP);
            paint.setShader(shader);
        paint.setStrokeWidth(10);
            paint.setColor(Color.RED);
            paint.setAntiAlias(true);

            float r = size / 2f;
            canvas.drawCircle(r, r, r, paint);

            squaredBitmap.recycle();
            return bitmap;
        }

        @Override
        public String key() {
            return "circle";
        }
}

Answer 1

您可以通过 Lopez Mikhael 使用 CircularImageView

渐变

compile 'com.mikhaellopez:circularimageview:3.0.2'

XML

<com.mikhaellopez.circularimageview.CircularImageView
        android:layout_width="250dp"
        android:layout_height="250dp"
        android:src="@drawable/image"
        app:civ_border_color="#EEEEEE"
        app:civ_border_width="4dp"
        app:civ_shadow="true"
        app:civ_shadow_radius="10"
        app:civ_shadow_color="#8BC34A"/>