Glide加载图片与设置图片圆角

compile 'com.github.bumptech.glide:glide:3.8.0'  图形加载库


   ImageView imgView=(ImageView) findViewById(R.id.circleImage);
 //普通图片
   Glide.with(context).load(url).into(img);
 //圆形图片
   Glide.with(context).load("http://oo6pz0u05.bkt.clouddn.com/17-12-13/69427561.jpg").transform(new GlideCircleImageView(context)).into(imgView);
 //圆角图片
   Glide.with(context).load("http://oo6pz0u05.bkt.clouddn.com/17-12-13/69427561.jpg").transform(new GlideRoundImageView(context,15)).into(imgView);




public class GlideCircleImageView extends BitmapTransformation {
    public GlideCircleImageView(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);
            float r = size / 2f;
            canvas.drawCircle(r, r, r, paint);
            return result;


    }
    private static Bitmap roundCrop(BitmapPool pool, Bitmap source) {
        if (source == null) return null;
        Bitmap result = pool.get(source.getWidth(), source.getHeight(), Bitmap.Config.ARGB_8888);
        if (result == null) {
            result = Bitmap.createBitmap(source.getWidth(), source.getHeight(), Bitmap.Config.ARGB_8888);
        }
        float    radius = Resources.getSystem().getDisplayMetrics().density * 15f;
        Canvas canvas = new Canvas(result);
        Paint paint = new Paint();
        paint.setShader(new BitmapShader(source, BitmapShader.TileMode.CLAMP, BitmapShader.TileMode.CLAMP));
        paint.setAntiAlias(true);
        RectF rectF = new RectF(0f, 0f, source.getWidth(), source.getHeight());
        canvas.drawRoundRect(rectF, radius, radius, paint);
        return result;
    }


    @Override public String getId() {
        return getClass().getName();
    }
}












public class GlideRoundImageView  extends BitmapTransformation {


    private static float radius = 0f;


    public GlideRoundImageView(Context context) {
        this(context, 4);
    }


    public GlideRoundImageView(Context context, int dp) {
        super(context);
        this.radius = Resources.getSystem().getDisplayMetrics().density * dp;
    }


    @Override protected Bitmap transform(BitmapPool pool, Bitmap toTransform, int outWidth, int outHeight) {
        return roundCrop(pool, toTransform);
    }


    private static Bitmap roundCrop(BitmapPool pool, Bitmap source) {
        if (source == null) return null;


        Bitmap result = pool.get(source.getWidth(), source.getHeight(), Bitmap.Config.ARGB_8888);
        if (result == null) {
            result = Bitmap.createBitmap(source.getWidth(), source.getHeight(), Bitmap.Config.ARGB_8888);
        }


        Canvas canvas = new Canvas(result);
        Paint paint = new Paint();
        paint.setShader(new BitmapShader(source, BitmapShader.TileMode.CLAMP, BitmapShader.TileMode.CLAMP));
        paint.setAntiAlias(true);
        RectF rectF = new RectF(0f, 0f, source.getWidth(), source.getHeight());
        canvas.drawRoundRect(rectF, radius, radius, paint);
        return result;
    }


    @Override public String getId() {
        return getClass().getName() + Math.round(radius);
    }
}