核心需要高斯模糊的库
compile 'jp.wasabeef:glide-transformations:2.0.1'
针对于3.7的版本
使用方法为：
//加载背景， Glide.with(MusicPlayerActivity.this) .load(service.getImageUri()) .dontAnimate() .error(R.drawable.no_music_rotate_img) // 设置高斯模糊,模糊程度(最大25) 缩放比例 .bitmapTransform(new BlurTransformation(this, 14, 3)) .into(allBg);
针对4.+
Glide.with(context) .load(url) .apply(RequestOptions.bitmapTransform(new BlurTransformation(25,8))) .into(view);
BlurTransformation 类源码：
import android.graphics.Bitmap;import android.graphics.Canvas;import android.graphics.Paint;import android.support.annotation.NonNull;import com.bumptech.glide.load.engine.bitmap_recycle.BitmapPool;import com.bumptech.glide.load.resource.bitmap.BitmapTransformation;import java.security.MessageDigest;import jp.wasabeef.glide.transformations.internal.FastBlur;public class BlurTransformation extends BitmapTransformation { private static final int VERSION = 1; private static final String ID = "BlurTransformation." + VERSION; private static int MAX_RADIUS = 25; private static int DEFAULT_DOWN_SAMPLING = 1; private int radius; private int sampling; public BlurTransformation() { this(MAX_RADIUS, DEFAULT_DOWN_SAMPLING); } public BlurTransformation(int radius) { this(radius, DEFAULT_DOWN_SAMPLING); } public BlurTransformation(int radius, int sampling) { this.radius = radius; this.sampling = sampling; } @Override protected Bitmap transform(@NonNull BitmapPool pool, @NonNull Bitmap toTransform, int outWidth, int outHeight) { int width = toTransform.getWidth(); int height = toTransform.getHeight(); int scaledWidth = width / sampling; int scaledHeight = height / sampling; Bitmap bitmap = pool.get(scaledWidth, scaledHeight, Bitmap.Config.ARGB_8888); Canvas canvas = new Canvas(bitmap); canvas.scale(1 / (float) sampling, 1 / (float) sampling); Paint paint = new Paint(); paint.setFlags(Paint.FILTER_BITMAP_FLAG); canvas.drawBitmap(toTransform, 0, 0, paint); bitmap = FastBlur.blur(bitmap, radius, true); return bitmap; } @Override public String toString() { return "BlurTransformation(radius=" + radius + ", sampling=" + sampling + ")"; } @Override public boolean equals(Object o) { return o instanceof BlurTransformation && ((BlurTransformation) o).radius == radius && ((BlurTransformation) o).sampling == sampling; } @Override public int hashCode() { return ID.hashCode() + radius * 1000 + sampling * 10; } @Override public void updateDiskCacheKey(@NonNull MessageDigest messageDigest) { messageDigest.update((ID + radius + sampling).getBytes(CHARSET)); }}
总结
以上所述是小编给大家介绍的Android项目实战之Glide 高斯模糊效果的实例代码，希望对大家有所帮助，如果大家有任何疑问欢迎给我留言，小编会及时回复大家的！
本文标题: Android项目实战之Glide 高斯模糊效果的实例代码
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