glide加载圆形图片待边框

对于加载圆形头像我们并不陌生，我只是想记录一下glide加载圆形头像加边框 用法 Glide.with(imageView.getContext()) .load(imageUrl) .transform(new GlideCircleTransform(imageView.getContext())) .into(imageView); transform public class GlideCircleTransform extends BitmapTransformation { public GlideCircleTransform(Context context) { super(context); } @Override protected Bitmap transform(BitmapPool pool, Bitmap toTransform, int outWidth, int outHeight) { return circleCrop(pool, toTransform); } private static Bitmap circleCrop(BitmapPool pool, Bitmap source) { if (source == null) return null; int size = Math.min(source.getWidth(), source.getHeight()); int x = (source.getWidth() - size) / 2; int y = (source.getHeight() - size) / 2; // TODO this could be acquired from the pool too Bitmap squared = Bitmap.createBitmap(source, x, y, size, size); Bitmap result = pool.get(size, size, Bitmap.Config.ARGB_8888); if (result == null) { result = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888); } Canvas canvas = new Canvas(result); Paint paint = new Paint(); paint.setShader(new BitmapShader(squared, BitmapShader.TileMode.CLAMP, BitmapShader.TileMode.CLAMP)); paint.setAntiAlias(true); //绘制边框 Paint mBorderPaint = new Paint(); mBorderPaint.setStyle(Paint.Style.STROKE); mBorderPaint.setStrokeWidth(4);//画笔宽度为4px mBorderPaint.setColor(Color.WHITE);//边框颜色 mBorderPaint.setStrokeCap(Paint.Cap.ROUND); mBorderPaint.setAntiAlias(true); float r = size / 2f; float r1=(size-2*4)/2f; canvas.drawCircle(r, r, r1, paint); canvas.drawCircle(r,r,r1,mBorderPaint);//画边框 return result; } @Override public String getId() { return getClass().getName(); } }