关于Glide图片加载框架的使用详解

来源：互联网发布：启示录2优化补丁编辑：程序博客网时间：2024/05/22 04:23

首先是普通的加载

效果图
这里写图片描述
代码实现

   Glide.with(this).load(url).into(iv_demo);

填充式的加载图片

效果图
这里写图片描述
代码实现:

 Glide.with(this).load(url).centerCrop().into(iv_demo);

加载圆形图片

效果图
这里写图片描述
代码实现(需要自定义实现GlideCircleTransform这个类)

 Glide.with(this).load(url).transform(new GlideCircleTransform(this)).into(iv_demo);

加载带边角的图片

效果图
这里写图片描述
代码实现(需要自定义实现GlideRoundTransform这个类)

  Glide.with(this).load(url).transform(new GlideRoundTransform(this)).into(iv_demo);

加载本地图片

代码实现

Glide.with(this).load(R.drawable.ic_launceher).transform(new GlideRoundTransform(this)).into(iv_demo);

加载sd卡图片

代码实现

Glide.with(this).load(path).transform(new GlideRoundTransform(this)).into(iv_demo);

怎么样是不是超简单用起来.圆角或者圆形图片自定义的两个类

package com.example.yukuo.glidedemo;import android.content.Context;import android.graphics.Bitmap;import android.graphics.BitmapShader;import android.graphics.Canvas;import android.graphics.Paint;import com.bumptech.glide.load.engine.bitmap_recycle.BitmapPool;import com.bumptech.glide.load.resource.bitmap.BitmapTransformation;/** * Created by yukuo on 2016/3/21. * 这是一个将网络图片转换为圆形的方法 */public class GlideCircleTransform extends BitmapTransformation {    public GlideCircleTransform(Context context) {        super(context);    }    @Override    protected Bitmap transform(BitmapPool pool, Bitmap toTransform, int outWidth, int outHeight) {        return circleCrop(pool, toTransform);    }    private Bitmap circleCrop(BitmapPool pool, Bitmap toTransform) {        if (toTransform == null) return null;        int size = Math.min(toTransform.getWidth(), toTransform.getHeight());        int x = (toTransform.getWidth() - size) / 2;        int y = (toTransform.getHeight() - size) / 2;        // TODO this could be acquired from the pool too        Bitmap squared = Bitmap.createBitmap(toTransform, x, y, size, size);        Bitmap result = pool.get(size, size, Bitmap.Config.ARGB_8888);        if (result == null) {            result = Bitmap.createBitmap(size, size, Bitmap.Config.ARGB_8888);        }        Canvas canvas = new Canvas(result);        Paint paint = new Paint();        paint.setShader(new BitmapShader(squared, BitmapShader.TileMode.CLAMP, BitmapShader.TileMode.CLAMP));        paint.setAntiAlias(true);        float r = size / 2f;        canvas.drawCircle(r, r, r, paint);        return result;    }    @Override    public String getId() {        return getClass().getName();    }}

package com.example.yukuo.glidedemo;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 yukuo on 2016/3/21. * 这是一个加载网络图片设置圆角的类 */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);    }}

ok到此结束,有什么不懂的请留言给我

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