使用Glide4.8加载网络地址实现高斯模糊 首先 导入glide
implementation 'com.github.bumptech.glide:glide:4.7.1'
annotationProcessor 'com.github.bumptech.glide:compiler:4.7.1'
网上查资料发现Glide实现高斯模糊还要引入
implementation 'jp.wasabeef:glide-transformations:2.0.1'
然后在项目中使用 根据根据网上的资料开始使用
GlideApp.with(getActivity()).asBitmap().load(ownerUrl).apply(new RequestOptions().transform(new BlurTransformation(getActivity(),23,4))).into(mIvGaussianBlur);
发现使用的时候报错 java.lang.AbstractMethodError: abstract method "void com.bumptech.glide.load.Key.updateDiskCacheKe
然后百度没找到想要的答案 翻墙搜了一下 找到一个答案
自定义一个BlurTransformation类
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.os.Build;
import android.renderscript.RSRuntimeException;
import android.support.annotation.NonNull;
import com.bumptech.glide.Glide;
import com.bumptech.glide.load.engine.bitmap_recycle.BitmapPool;
import com.bumptech.glide.load.resource.bitmap.BitmapTransformation;
import java.nio.charset.Charset;
import java.security.MessageDigest;
import jp.wasabeef.glide.transformations.internal.FastBlur;
import jp.wasabeef.glide.transformations.internal.RSBlur;
/**
* Created by me on 2018-11-4.
*/
public class BlurTransformation extends BitmapTransformation {
private static String STRING_CHARSET_NAME = "UTF-8";
private static final String ID = "com.kevin.glidetest.BlurTransformation";
private static Charset CHARSET = Charset.forName(STRING_CHARSET_NAME);
private static final byte[] ID_BYTES = ID.getBytes(CHARSET);
private static int MAX_RADIUS = 25;
private static int DEFAULT_DOWN_SAMPLING = 1;
private Context mContext;
private BitmapPool mBitmapPool;
private int mRadius;
private int mSampling;
public BlurTransformation(Context context) {
this(context, Glide.get(context).getBitmapPool(), MAX_RADIUS, DEFAULT_DOWN_SAMPLING);
}
public BlurTransformation(Context context, BitmapPool pool) {
this(context, pool, MAX_RADIUS, DEFAULT_DOWN_SAMPLING);
}
public BlurTransformation(Context context, BitmapPool pool, int radius) {
this(context, pool, radius, DEFAULT_DOWN_SAMPLING);
}
public BlurTransformation(Context context, int radius) {
this(context, Glide.get(context).getBitmapPool(), radius, DEFAULT_DOWN_SAMPLING);
}
public BlurTransformation(Context context, int radius, int sampling) {
this(context, Glide.get(context).getBitmapPool(), radius, sampling);
}
public BlurTransformation(Context context, BitmapPool pool, int radius, int sampling) {
mContext = context.getApplicationContext();
mBitmapPool = pool;
mRadius = radius;
mSampling = sampling;
}
@Override
protected Bitmap transform(@NonNull BitmapPool pool, @NonNull Bitmap toTransform, int
outWidth, int outHeight) {
Bitmap source = toTransform;
int width = source.getWidth();
int height = source.getHeight();
int scaledWidth = width / mSampling;
int scaledHeight = height / mSampling;
Bitmap bitmap = mBitmapPool.get(scaledWidth, scaledHeight, Bitmap.Config.ARGB_8888);
if (bitmap == null) {
bitmap = Bitmap.createBitmap(scaledWidth, scaledHeight, Bitmap.Config.ARGB_8888);
}
Canvas canvas = new Canvas(bitmap);
canvas.scale(1 / (float) mSampling, 1 / (float) mSampling);
Paint paint = new Paint();
paint.setFlags(Paint.FILTER_BITMAP_FLAG);
canvas.drawBitmap(source, 0, 0, paint);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2) {
try {
bitmap = RSBlur.blur(mContext, bitmap, mRadius);
} catch (RSRuntimeException e) {
bitmap = FastBlur.blur(bitmap, mRadius, true);
}
} else {
bitmap = FastBlur.blur(bitmap, mRadius, true);
}
//return BitmapResource.obtain(bitmap, mBitmapPool);
return bitmap;
}
@Override
public int hashCode() {
return ID.hashCode();
}
@Override
public boolean equals(Object obj) {
return obj instanceof BlurTransformation;
}
@Override
public void updateDiskCacheKey(MessageDigest messageDigest) {
messageDigest.update(ID_BYTES);
}
}
替换掉原来jp.wasabeef:glide-transformations自带的BlurTransformation类就OK了
大家使用的时候千万注意别导包导错了，用自定义的BlurTransformation类而不要用transformation库自带的
希望能给大家一点帮助，少踩一点坑
另外 使用Glide实现圆形图片效果 into()方法里面都是ImageView
另附效果图: