Android:利用第三方库Glide加载图片后进行形状包装比如圆角和圆形的
package org.lgf.ostrich.library.view;
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;
/**
* Create On: 2017/3/21."UTF-8"
* Author: GuanFu Li
* Desc:将图片转化为圆角,构造中第二个参数为定义半径
* Transplant:添加Glide的jar或者在线注入依赖,
* Related:class:null;
* xml:null;
*/
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);
}
}
package org.lgf.ostrich.library.manager;
import android.content.Context;
import android.widget.ImageView;
import com.bumptech.glide.Glide;
import org.lgf.ostrich.library.view.GlideCircleTransform;
import org.lgf.ostrich.library.view.GlideRoundTransform;
/**
*
* Create On: 2017/3/21."UTF-8"
* Author: GuanFu Li
* Desc:针对Glide加载完成图片进行形状包装,可以显示圆形和圆角图片:移植需要官方glide的jar或者在线注入依赖。
* Related:class:org.lgf.ostrich.library.view.GlideCircleTransform
* org.lgf.ostrich.library.view.GlideRoundTransform
* xml:null
* Usage:
* GlideImgManager.glideLoader(this, url, R.mipmap.ic_launcher, R.mipmap.ic_launcher, mImgNormal);
* GlideImgManager.glideLoader(this, url, R.mipmap.ic_launcher, R.mipmap.ic_launcher, mImgCircle, 0);//圆形图片
* GlideImgManager.glideLoader(this, url, R.mipmap.ic_launcher, R.mipmap.ic_launcher, mImgRound, 10);//圆角图片,传入非零值为圆角半径。
*/
public class GlideImgManager {
/**
* load normal for img
*
* @param url 图片地址
* @param errorImg 加载失败时的占位图
* @param emptyImg 未加载完成时的占位图
* @param iv 目标显示控件:ImageView
*/
public static void glideLoader(Context context, String url, int errorImg, int emptyImg, ImageView iv) {
//原生 API
Glide.with(context).load(url).placeholder(emptyImg).error(errorImg).into(iv);
}
/**
* load normal for circle or round img
*
* @param url 网络图片地址
* @param errorImg 加载失败时的占位图
* @param emptyImg 加载未完成是的占位图
* @param iv Glide加载到的目标空间
* @param radius 圆角半径,为零时显示圆形图片,建议10
*/
public static void glideLoader(Context context, String url, int errorImg, int emptyImg, ImageView iv, int radius) {
if (0 == radius) {
Glide.with(context).load(url).placeholder(emptyImg).error(errorImg).transform(new GlideCircleTransform(context)).into(iv);
} else {
Glide.with(context).load(url).placeholder(emptyImg).error(errorImg).transform(new GlideRoundTransform(context,radius)).into(iv);
}
}
}
package org.lgf.ostrich.library.view;
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;
/**
* 创建时间: 2017/3/21.
* Author: GuanFu Li
* Desc:将图片转化为圆形
* Transplant:添加Glide的jar或者在线注入依赖,
* Related:class:null;
* xml:null;
*/
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 static Bitmap circleCrop(BitmapPool pool, Bitmap source) {
if (source == null) return null;
int size = Math.min(source.getWidth(), source.getHeight());
int x = (source.getWidth() - size) / 2;
int y = (source.getHeight() - size) / 2;
// TODO this could be acquired from the pool too
Bitmap squared = Bitmap.createBitmap(source, 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();
}
}
dependencies {
compile 'com.github.bumptech.glide:glide:3.5.2'
}
GlideImgManager.java
、GlideCircleTransform.java
、GlideRoundTransform.java
等文件复制到module中 imgGlideCircle = (xxx)findViewById(xxx);
imgGlideRound = (xxx)findViewById(xxx);
String url="http://img4.imgtn.bdimg.com/it/u=2128568119,2020679487&fm=23&gp=0.jpg";
GlideImgManager.glideLoader(this, url, R.mipmap.ic_launcher, R.mipmap.ic_launcher, imgGlideCircle, 0);
GlideImgManager.glideLoader(this, url, R.mipmap.ic_launcher, R.mipmap.ic_launcher, imgGlideRound, 30);