Android项目实战之Glide 高斯模糊效果的实例代码

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