Glide库

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根据图片的文件路径，显示给ImageView

原理：借助 Glide 库来实现；

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String pathname = "/storage/emulated/0/lyloou/image/hello_world.png";
File file = new File(pathname);
Glide.with(mContext).load(file).asBitmap().into(mIvHi);

通过图像 URL 设置圆角图像：

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private void setCircleIcon(ImageView view) {
    String url = "https://img.gcall.com/dca5/M00/10/8E/wKhoNlggetaENWylAAAAAAAAAAA457.jpg";
    final int w = Uscreen.dp2Px(mContext, 48);
    Glide.with(mContext)
            .load(url)
            .centerCrop()
            .fitCenter()
            .thumbnail(0.1f)
            .placeholder(R.mipmap.ic_launcher)
            .crossFade()
            .override(w, w)
            .transform(new BitmapTransformation(mContext) {
                @Override
                protected Bitmap transform(BitmapPool pool, Bitmap toTransform, int outWidth, int outHeight) {
                    return Uview.getBitmapByXfermode(mContext, toTransform,
                            Color.parseColor("#dddddd"),
                            w,
                            w, PorterDuff.Mode.SRC_IN);
                }

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