package com.jingewenku.abrahamcaijin.commonutil;
import android.content.Context;
import android.graphics.*;
import android.graphics.Bitmap.Config;
import android.graphics.PorterDuff.Mode;
import android.widget.ImageView;
import com.squareup.picasso.Picasso;
import com.squareup.picasso.Transformation;
/**
* @Description:主要功能:Picasso图片加载工具类
* @Prject: CommonUtilLibrary
* @Package: com.jingewenku.abrahamcaijin.commonutil
* @author: AbrahamCaiJin
* @date: 2017年05月19日 15:47
* @Copyright: 个人版权所有
* @Company:
* @version: 1.0.0
*/
/**
* picasso 图片处理工具类<BR/>
* 优缺点：对图片处理强大，取消已经不在视野范围的ImageView图片资源的加载（否则会导致图片错位），
* 使用4.0+系统上的HTTP缓存来代替磁盘缓存；只能得到结果，不能监听图片下载过程
* <BR/> Picasso 可以与okhttp搭配
*
* 如果使用Picasso同时也使用了okhttp库，那么项目运行的时候可能会报出一下异常：
Picasso detected an unsupported OkHttp on the classpath
针对该情况，网上说需要引入：compile 'com.squareup.okhttp:okhttp-urlconnection:2.2.0'
即同时引入一下三个包：
compile 'com.squareup.okhttp:okhttp:2.4.0'
compile 'com.squareup.okhttp:okhttp-urlconnection:2.2.0'
compile 'com.squareup.picasso:picasso:2.4.0'
*/
public class PicassoUtils {
private static PicassoUtils instance;
/**圆形*/
public static String PICASSO_BITMAP_SHOW_CIRCLE_TYPE="PicassoUtils_Circle_Type";
/**圆角*/
public static String PICASSO_BITMAP_SHOW_ROUND_TYPE="PicassoUtils_Round_Type";
/**正常*/
public static String PICASSO_BITMAP_SHOW_NORMAL_TYPE="PicassoUtils_Normal_Type";
public static PicassoUtils getinstance(){
if(instance==null){
synchronized (PicassoUtils.class) {
if(instance==null){
instance=new PicassoUtils();
}
}
}
return instance;
}
//Picasso使用的方法汇总：
//Picasso.with(context).load("http://i.imgur.com/DvpvklR.png").into(imageView);
//Picasso.with(context).load(url).into(view);
//Picasso.with(context).load(url) .resize(50, 50).centerCrop().into(imageView)
////这里的placeholder将resource传入通过getResource.getDrawable取资源，所以可以是张图片也可以是color id
//Picasso.with(context).load(url).placeholder(R.drawable.user_placeholder).error(R.drawable.user_placeholder_error).into(imageView);
//
// Resources, assets, files, content providers 加载图片都支持
//Picasso.with(context).load(R.drawable.landing_screen).into(imageView1);
//Picasso.with(context).load("file:///android_asset/DvpvklR.png").into(imageView2);
//Picasso.with(context).load(new File(...)).into(imageView3);
////这里显示notification的图片
//Picasso.with(activity).load(Data.URLS[new Random().nextInt(Data.URLS.length)]).resizeDimen(R.dimen.notification_icon_width_height, R.dimen.notification_icon_width_height).into(remoteViews, R.id.photo, NOTIFICATION_ID, notification);
////这里是通过设置tag标签，就是当前传过来的context，这样就可以根据这个context tag来pause和resume显示了
//Picasso.with(context).load(url).placeholder(R.drawable.placeholder).error(R.drawable.error).fit().tag(context).into(view);
////监听onScrollStateChanged的时候调用执行
//picasso.resumeTag(context);
//picasso.pauseTag(context);
//Picasso.with(context).load(contactUri).placeholder(R.drawable.contact_picture_placeholder).tag(context).into(holder.icon);
/**
* 加载图片通过地址
* @param context
* @param path
* <BR/>
* String imagePath = "/mnt/sdcard/phone_pregnancy/header.png"; <BR/>
String imagefileUrl = Scheme.FILE.wrap(imagePath); <BR/>
//图片来源于Content provider
String contentprividerUrl = "content://media/external/audio/albumart/13"; <BR/>
//图片来源于assets
// String assetsUrl = Scheme.ASSETS.wrap("image.png"); <BR/>
String assetsUrl = "assets://fail_image.9.png"; <BR/>
//图片来源于 drawable
// String drawableUrl = Scheme.DRAWABLE.wrap("R.drawable.ic_launcher.png");<BR/>
String drawableUrl = "drawable://" + R.drawable.ic_add; <BR/>
//图片来源于 网络
String neturi = "http://ww2.sinaimg.cn/large/49aaa343jw1dgwd0qvb4pj.jpg";<BR/>
<P>
* @param imageView
* @param placeholderimage 占位图片
* @param errorimage 加载错误图片
* @param bitmapShowType PICASSO_BITMAP_SHOW_CIRCLE_TYPE ， PICASSO_BITMAP_SHOW_ROUND_TYPE ，PICASSO_BITMAP_SHOW_NORMAL_TYPE
* @param roundRadius 设置圆角半径
*/
public void LoadImage(Context context,String path,ImageView imageView,int placeholderimage,int errorimage,String bitmapShowType,float roundRadius){
if(bitmapShowType.equals(PICASSO_BITMAP_SHOW_CIRCLE_TYPE)){
Picasso.with(context).load(path).placeholder(placeholderimage).error(errorimage).transform(new CircleTransform()).into(imageView);
}else if(bitmapShowType.equals(PICASSO_BITMAP_SHOW_ROUND_TYPE)){
Picasso.with(context).load(path).placeholder(placeholderimage).error(errorimage).transform(new RoundTransform(roundRadius)).into(imageView);
}else {
Picasso.with(context).load(path).placeholder(placeholderimage).error(errorimage).into(imageView);
}
}
/**
* 加载图片本地 通过id
* @param context
* @param localimage R.drawable.landing_screen
* @param imageView
* @param bitmapShowType PICASSO_BITMAP_SHOW_CIRCLE_TYPE ， PICASSO_BITMAP_SHOW_ROUND_TYPE ，PICASSO_BITMAP_SHOW_NORMAL_TYPE
* @param roundRadius 设置圆角半径
*/
public void LoadImage(Context context,int localimage,ImageView imageView,String bitmapShowType,float roundRadius){
if(bitmapShowType.equals(PICASSO_BITMAP_SHOW_CIRCLE_TYPE)){
Picasso.with(context).load(localimage).placeholder(R.drawable.img_loading).error(R.drawable.img_load_error).transform(new CircleTransform()).into(imageView);
}else if(bitmapShowType.equals(PICASSO_BITMAP_SHOW_ROUND_TYPE)){
Picasso.with(context).load(localimage).transform(new RoundTransform(roundRadius)).into(imageView);
}else {
Picasso.with(context).load(localimage).into(imageView);
}
}
/**
* 加载图片 设置宽高 图片默认居中 （centerCrop() ）
* @param context
* @param path
* @param imageView
* @param targetWidth
* @param targetHeight
* @param bitmapShowType PICASSO_BITMAP_SHOW_CIRCLE_TYPE ， PICASSO_BITMAP_SHOW_ROUND_TYPE ，PICASSO_BITMAP_SHOW_NORMAL_TYPE
* @param roundRadius 设置圆角半径
*/
public void LoadImageWithWidtAndHeight(Context context,String path,ImageView imageView,int targetWidth,int targetHeight,String bitmapShowType,float roundRadius){
if(bitmapShowType.equals(PICASSO_BITMAP_SHOW_CIRCLE_TYPE)){
Picasso.with(context).load(path).resize(targetWidth, targetHeight).centerCrop().transform(new CircleTransform()).into(imageView);
}else if(bitmapShowType.equals(PICASSO_BITMAP_SHOW_ROUND_TYPE)){
Picasso.with(context).load(path).resize(targetWidth, targetHeight).centerCrop().transform(new RoundTransform(roundRadius)).into(imageView);
}else {
Picasso.with(context).load(path).resize(targetWidth, targetHeight).centerCrop().into(imageView);
}
}
//--------------------------------------------------
/**
*设置圆形头像
*/
public class CircleTransform implements Transformation {
@Override
public Bitmap transform(Bitmap source) {
int size = Math.min(source.getWidth(), source.getHeight());
int x = (source.getWidth() - size) / 2;
int y = (source.getHeight() - size) / 2;
Bitmap squaredBitmap = Bitmap.createBitmap(source, x, y, size, size);
if (squaredBitmap != source) {
source.recycle();
}
Bitmap bitmap = Bitmap.createBitmap(size, size, source.getConfig());
Canvas canvas = new Canvas(bitmap);
Paint paint = new Paint();
BitmapShader shader = new BitmapShader(squaredBitmap,
BitmapShader.TileMode.CLAMP, BitmapShader.TileMode.CLAMP);
paint.setShader(shader);
paint.setAntiAlias(true);
float r = size / 2f;
canvas.drawCircle(r, r, r, paint);
squaredBitmap.recycle();
return bitmap;
}
@Override
public String key() {
return "circle";
}
}
//------------------------------------------------------
/**
* 绘制圆角
*/
public class RoundTransform implements Transformation{
private float radius;
public RoundTransform(float radius) {
this.radius=radius;
}
@Override
public String key() {
return "round";
}
@Override
public Bitmap transform(Bitmap bitmap) {
int size = Math.min(bitmap.getWidth(), bitmap.getHeight());
int x = (bitmap.getWidth() - size) / 2;
int y = (bitmap.getHeight() - size) / 2;
Bitmap squaredBitmap = Bitmap.createBitmap(bitmap, x, y, size, size);
if (squaredBitmap != bitmap) {
bitmap.recycle();
}
Bitmap output = Bitmap.createBitmap(bitmap.getWidth(),
bitmap.getHeight(), Config.ARGB_8888);
Canvas canvas = new Canvas(output);
final int color = 0xff424242;
final Paint paint = new Paint();
final Rect rect = new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight());
final RectF rectF = new RectF(rect);
paint.setAntiAlias(true);
canvas.drawARGB(0, 0, 0, 0);
paint.setColor(color);
canvas.drawRoundRect(rectF, radius, radius, paint);
paint.setXfermode(new PorterDuffXfermode(Mode.SRC_IN));
canvas.drawBitmap(bitmap, rect, rect, paint);
squaredBitmap.recycle();
return output;
}
}
}