Android使用glide实现毛玻璃效果

因为需求需要对图片做毛玻璃效果。

查询了很多，有好多是引用compile 'jp.wasabeef:glide-transformations:2.0.1' 而我不想引用好多包，毕竟已经有glide了。嗨哟啊换好麻烦的。

最后还是用的 BlurTransformation 这个

3.0的glide代码

/** * 毛玻璃效果 * Created by wjs on 2017/11/20. */public class BlurTransformation extends BitmapTransformation {    private RenderScript rs;    private int radius;    public BlurTransformation(Context context, int radius) {        super(context);        rs = RenderScript.create(context);        this.radius = radius;    }    @TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR1)    @Override    protected Bitmap transform(BitmapPool pool, Bitmap toTransform, int outWidth, int outHeight) {        Bitmap blurredBitmap = toTransform.copy(Bitmap.Config.ARGB_8888, true);        // Allocate memory for Renderscript to work with        //分配用于渲染脚本的内存        Allocation input = Allocation.createFromBitmap(                rs,                blurredBitmap,                Allocation.MipmapControl.MIPMAP_FULL,                Allocation.USAGE_SHARED        );        Allocation output = Allocation.createTyped(rs, input.getType());        // Load up an instance of the specific script that we want to use.        //加载我们想要使用的特定脚本的实例        ScriptIntrinsicBlur script = ScriptIntrinsicBlur.create(rs, Element.U8_4(rs));        script.setInput(input);        // Set the blur radius        //设置模糊半径        script.setRadius(radius);        // Start the ScriptIntrinisicBlur        //启动ScriptIntrinisicBlur        script.forEach(output);        // Copy the output to the blurred bitmap        //将输出复制到模糊的位图        output.copyTo(blurredBitmap);        toTransform.recycle();        return blurredBitmap;    }    @Override    public String getId() {        return "blur";    }}

4.0的glide

/** * Created by wjs on 2017/11/20. */public class BlurTransformation extends BitmapTransformation {    private RenderScript rs;    private int radius;    public BlurTransformation(Context context,int radius ) {        super(context);        rs = RenderScript.create(context);        this.radius = radius;    }    @TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR1)    @Override    protected Bitmap transform(BitmapPool pool, Bitmap toTransform, int outWidth, int outHeight) {        Bitmap blurredBitmap = toTransform.copy(Bitmap.Config.ARGB_8888, true);        // Allocate memory for Renderscript to work with        //分配用于渲染脚本的内存        Allocation input = Allocation.createFromBitmap(rs, blurredBitmap, Allocation.MipmapControl.MIPMAP_FULL, Allocation.USAGE_SHARED);        Allocation output = Allocation.createTyped(rs, input.getType());        // Load up an instance of the specific script that we want to use.        //加载我们想要使用的特定脚本的实例。        ScriptIntrinsicBlur script = ScriptIntrinsicBlur.create(rs, Element.U8_4(rs));        script.setInput(input);        // Set the blur radius        //设置模糊半径        script.setRadius(radius);        // Start the ScriptIntrinisicBlur        //启动ScriptIntrinisicBlur,        script.forEach(output);        // Copy the output to the blurred bitmap        //将输出复制到模糊的位图        output.copyTo(blurredBitmap);        return blurredBitmap;    }    @Override    public void updateDiskCacheKey(MessageDigest messageDigest) {        messageDigest.update("blur transformation".getBytes());    }}

使用

Glide        .with(MainActivity.this)        .load(“http://image.chaokeli.cn/chocolate/android_20171102104519_0_169.jpg”)        .transform(new BlurTransformation(MainActivity.this,20))        .into(iv2);

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