Glide实现圆角和圆形图片

1. 实现圆形图片 , 传参第一个为上下文, 第二个为角度

package com.hh.beauter.util;

import android.content.Context;

import android.content.res.Resources;

import android.graphics.Bitmap;

import android.graphics.BitmapShader;

import android.graphics.Canvas;

import android.graphics.Paint;

import android.graphics.RectF;

import com.bumptech.glide.load.engine.bitmap_recycle.BitmapPool;

import com.bumptech.glide.load.resource.bitmap.BitmapTransformation;

/**

* Created by Hh on 2017/1/5.

*/

public class GlideRoundTransform extends BitmapTransformation {

    private static float radius = 0f;

    public GlideRoundTransform(Context context) {

        this(context, 4);

    }

    public GlideRoundTransform(Context context, int dp) {

        super(context);

        this.radius = Resources.getSystem().getDisplayMetrics().density * dp;

    }

    @Override protected Bitmap transform(BitmapPool pool, Bitmap toTransform, int outWidth, int outHeight) {

        return roundCrop(pool, toTransform);

    }

    private static Bitmap roundCrop(BitmapPool pool, Bitmap source) {

        if (source == null) return null;

        Bitmap result = pool.get(source.getWidth(), source.getHeight(), Bitmap.Config.ARGB_8888);

        if (result == null) {

            result = Bitmap.createBitmap(source.getWidth(), source.getHeight(), Bitmap.Config.ARGB_8888);

        }

        Canvas canvas = new Canvas(result);

        Paint paint = new Paint();

        paint.setShader(new BitmapShader(source, BitmapShader.TileMode.CLAMP, BitmapShader.TileMode.CLAMP));

        paint.setAntiAlias(true);

        RectF rectF = new RectF(0f, 0f, source.getWidth(), source.getHeight());

        canvas.drawRoundRect(rectF, radius, radius, paint);

        return result;

    }

    @Override public String getId() {

        return getClass().getName() + Math.round(radius);

    }

}

　　使用方法:

 Glide.with(ActActivity.this).load(UrlUtil.LOCALL_IP+good.getImgs().get(0).getImg())

                    .transform(new GlideRoundTransform(ActActivity.this,20))

                    .into(viewHolder.img);

　　

　　2. 加载圆形图片

//圆形

 Glide.with(this).load(photoUrl).asBitmap().centerCrop().into(new BitmapImageViewTarget(photo) {

 @Override

 protected void setResource(Bitmap resource) {

 RoundedBitmapDrawable circularBitmapDrawable =

 RoundedBitmapDrawableFactory.create(getResources(), resource);

 circularBitmapDrawable.setCircular(true);

 photo.setImageDrawable(circularBitmapDrawable);

 }

 });