CropOverlayView.java 文件源码

/**
 * Draw borders of the crop area.
 */
private void drawBorders(Canvas canvas) {
    if (mBorderPaint != null) {
        float w = mBorderPaint.getStrokeWidth();
        RectF rect = mCropWindowHandler.getRect();
        rect.inset(w / 2, w / 2);

        if (mCropShape == CropImageView.CropShape.RECTANGLE) {
            // Draw rectangle crop window border.
            canvas.drawRect(rect, mBorderPaint);
        } else {
            // Draw circular crop window border
            canvas.drawOval(rect, mBorderPaint);
        }
    }
}