增加网络图片

app/src/main/java/com/bonait/bnframework/MainApplication.java

@@ -78,8 +78,8 @@ public class MainApplication extends Application {
         //2.初始化SD卡,数据库DB
         SdCart.getInstance().initSD();
 
-        //4.初始化Main
-        ConfigData.getInstance();
+        //4.初始化Main,并且增加本地图片库
+        ConfigData.getInstance().AddImage(context);
         // activity生命周期管理
         ActivityLifecycleManager.get().init(this);
 

app/src/main/java/com/bonait/bnframework/business/ConfigData.java

@@ -1,7 +1,11 @@
 package com.bonait.bnframework.business;
 
+import android.content.Context;
+import android.graphics.Bitmap;
+import android.graphics.BitmapFactory;
 import android.util.Log;
 
+import com.bonait.bnframework.R;
 import com.bonait.bnframework.common.constant.ConfigName;
 import com.bonait.bnframework.common.constant.MessageName;
 import com.bonait.bnframework.common.db.QueryDB;
@@ -11,6 +15,7 @@ import com.bonait.bnframework.common.helper.HttpUtils;
 import com.bonait.bnframework.common.helper.Json;
 import com.bonait.bnframework.common.helper.mode.OrderStatusChange;
 import com.bonait.bnframework.common.helper.mode.VersionMode;
+import com.bonait.bnframework.common.image.utils.LocalCacheUtils;
 
 import java.util.ArrayList;
 
@@ -191,6 +196,25 @@ public class ConfigData {
         ConfigUtil.write(ConfigName.getInstance().dishesCon,"Version", ConfigName.getInstance().Version);
     }
 
+    /**
+     * 增加本地图片
+     */
+    public void AddImage(Context context)
+    {
+        BitmapFactory.Options options = new BitmapFactory.Options();
+        options.inSampleSize=2;//宽高压缩为原来的1/2
+        options.inPreferredConfig=Bitmap.Config.ARGB_4444;
+        Bitmap bitmap1= BitmapFactory.decodeResource(context.getResources(), R.mipmap.image1,options);
+        Bitmap bitmap2= BitmapFactory.decodeResource(context.getResources(), R.mipmap.image2,options);
+        Bitmap bitmap3= BitmapFactory.decodeResource(context.getResources(), R.mipmap.image3,options);
+        Bitmap bitmap4= BitmapFactory.decodeResource(context.getResources(), R.mipmap.image4,options);
+        LocalCacheUtils localCacheUtils=new LocalCacheUtils();
+        localCacheUtils.setBitmapToLocal("image1.png",bitmap1);
+        localCacheUtils.setBitmapToLocal("image2.png",bitmap2);
+        localCacheUtils.setBitmapToLocal("image3.png",bitmap3);
+        localCacheUtils.setBitmapToLocal("image4.png",bitmap4);
+    }
+
     /**
      * 获取订单信息
      */

app/src/main/java/com/bonait/bnframework/common/image/MyBitmapUtils.java

@@ -0,0 +1,48 @@
+package com.bonait.bnframework.common.image;
+
+import android.graphics.Bitmap;
+import android.widget.ImageView;
+
+import com.bonait.bnframework.R;
+import com.bonait.bnframework.common.image.utils.LocalCacheUtils;
+import com.bonait.bnframework.common.image.utils.MemoryCacheUtils;
+import com.bonait.bnframework.common.image.utils.NetCacheUtils;
+
+/**
+ * 自定义的BitmapUtils,实现三级缓存
+ */
+public class MyBitmapUtils {
+    private NetCacheUtils mNetCacheUtils;
+    private LocalCacheUtils mLocalCacheUtils;
+    private MemoryCacheUtils mMemoryCacheUtils;
+
+    public MyBitmapUtils(){
+        mMemoryCacheUtils=new MemoryCacheUtils();
+        mLocalCacheUtils=new LocalCacheUtils();
+        mNetCacheUtils=new NetCacheUtils(mLocalCacheUtils,mMemoryCacheUtils);
+    }
+
+    public void disPlay(ImageView ivPic, String url) {
+        ivPic.setImageResource(R.mipmap.loading2);
+        Bitmap bitmap;
+        //内存缓存
+        bitmap=mMemoryCacheUtils.getBitmapFromMemory(url);
+        if (bitmap!=null){
+            ivPic.setImageBitmap(bitmap);
+            System.out.println("从内存获取图片啦.....");
+            return;
+        }
+
+        //本地缓存
+        bitmap = mLocalCacheUtils.getBitmapFromLocal(url);
+        if(bitmap !=null){
+            ivPic.setImageBitmap(bitmap);
+            System.out.println("从本地获取图片啦.....");
+            //从本地获取图片后,保存至内存中
+            mMemoryCacheUtils.setBitmapToMemory(url,bitmap);
+            return;
+        }
+        //网络缓存
+        mNetCacheUtils.getBitmapFromNet(ivPic,url);
+    }
+}

app/src/main/java/com/bonait/bnframework/common/image/utils/LocalCacheUtils.java

@@ -0,0 +1,66 @@
+package com.bonait.bnframework.common.image.utils;
+
+import android.graphics.Bitmap;
+import android.graphics.BitmapFactory;
+import android.os.Environment;
+
+import com.bonait.bnframework.common.constant.ConfigName;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+
+/**
+ * 三级缓存之本地缓存
+ */
+public class LocalCacheUtils {
+
+    private static final String CACHE_PATH= Environment.getExternalStorageDirectory().getAbsolutePath()+"/hblxiaochaodb/WebImage";
+
+    /**
+     * 从本地读取图片
+     * @param url
+     */
+    public Bitmap getBitmapFromLocal(String url){
+        String fileName = null;//把图片的url当做文件名,并进行MD5加密
+        try {
+            fileName = MD5Encoder.encode(url);
+            File file=new File(CACHE_PATH,fileName);
+
+            Bitmap bitmap = BitmapFactory.decodeStream(new FileInputStream(file));
+
+            return bitmap;
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+
+        return null;
+    }
+
+    /**
+     * 从网络获取图片后,保存至本地缓存
+     * @param url
+     * @param bitmap
+     */
+    public void setBitmapToLocal(String url,Bitmap bitmap){
+        try {
+            String fileName = MD5Encoder.encode(url);//把图片的url当做文件名,并进行MD5加密
+            File file=new File(CACHE_PATH,fileName);
+
+            //通过得到文件的父文件,判断父文件是否存在
+            File parentFile = file.getParentFile();
+            if (!parentFile.exists()){
+                parentFile.mkdirs();
+            }
+
+            if(!file.exists())//文件不存在
+            {
+                //把图片保存至本地
+                bitmap.compress(Bitmap.CompressFormat.JPEG,100,new FileOutputStream(file));
+            }
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+
+    }
+}

app/src/main/java/com/bonait/bnframework/common/image/utils/MD5Encoder.java

@@ -0,0 +1,25 @@
+package com.bonait.bnframework.common.image.utils;
+
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
+
+public class MD5Encoder {
+    public static String encode(String pwd) {
+        try {
+            MessageDigest digest = MessageDigest.getInstance("MD5");
+            byte[]  bytes = digest.digest(pwd.getBytes());
+            StringBuffer sb = new  StringBuffer();
+            for(int i = 0;i<bytes.length;i++){
+                String s = Integer.toHexString(0xff&bytes[i]);
+                if(s.length()==1){
+                    sb.append("0"+s);
+                }else{
+                    sb.append(s);
+                }
+            }
+            return sb.toString();
+        } catch (NoSuchAlgorithmException e) {
+            return "buhuifasheng";
+        }
+    }
+}

app/src/main/java/com/bonait/bnframework/common/image/utils/MemoryCacheUtils.java

@@ -0,0 +1,58 @@
+package com.bonait.bnframework.common.image.utils;
+
+import android.graphics.Bitmap;
+import android.util.LruCache;
+
+/**
+ * 三级缓存之内存缓存
+ */
+public class MemoryCacheUtils {
+
+    // private HashMap<String,Bitmap  mMemoryCache=new HashMap< ();//1.因为强引用,容易造成内存溢出，所以考虑使用下面弱引用的方法
+    // private HashMap<String, SoftReference<Bitmap   mMemoryCache = new HashMap< ();//2.因为在Android2.3+后,系统会优先考虑回收弱引用对象,官方提出使用LruCache
+    private LruCache<String,Bitmap> mMemoryCache;
+
+    public MemoryCacheUtils(){
+        long maxMemory = Runtime.getRuntime().maxMemory()/8;//得到手机最大允许内存的1/8,即超过指定内存,则开始回收
+        //需要传入允许的内存最大值,虚拟机默认内存16M,真机不一定相同
+        mMemoryCache=new LruCache<String,Bitmap> ((int) maxMemory){
+            //用于计算每个条目的大小
+            @Override
+            protected int sizeOf(String key, Bitmap value) {
+                int byteCount = value.getByteCount();
+                return byteCount;
+            }
+        };
+    }
+
+    /**
+     * 从内存中读图片
+     * @param url
+     */
+    public Bitmap getBitmapFromMemory(String url) {
+        //Bitmap bitmap = mMemoryCache.get(url);//1.强引用方法
+   /*2.弱引用方法
+   SoftReference<Bitmap  bitmapSoftReference = mMemoryCache.get(url);
+   if (bitmapSoftReference != null) {
+    Bitmap bitmap = bitmapSoftReference.get();
+    return bitmap;
+   }
+   */
+        Bitmap bitmap = mMemoryCache.get(url);
+        return bitmap;
+
+    }
+
+    /**
+     * 往内存中写图片
+     * @param url
+     * @param bitmap
+     */
+    public void setBitmapToMemory(String url, Bitmap bitmap) {
+        //mMemoryCache.put(url, bitmap);//1.强引用方法
+   /*2.弱引用方法
+   mMemoryCache.put(url, new SoftReference< (bitmap));
+   */
+        mMemoryCache.put(url,bitmap);
+    }
+}

app/src/main/java/com/bonait/bnframework/common/image/utils/NetCacheUtils.java

@@ -0,0 +1,118 @@
+package com.bonait.bnframework.common.image.utils;
+
+
+import android.graphics.Bitmap;
+import android.graphics.BitmapFactory;
+import android.os.AsyncTask;
+import android.widget.ImageView;
+
+import java.io.IOException;
+import java.net.HttpURLConnection;
+import java.net.URL;
+
+/**
+ * 三级缓存之网络缓存
+ */
+public class NetCacheUtils {
+
+    private LocalCacheUtils mLocalCacheUtils;
+    private MemoryCacheUtils mMemoryCacheUtils;
+
+    public NetCacheUtils(LocalCacheUtils localCacheUtils, MemoryCacheUtils memoryCacheUtils) {
+        mLocalCacheUtils = localCacheUtils;
+        mMemoryCacheUtils = memoryCacheUtils;
+    }
+
+    /**
+     * 从网络下载图片
+     * @param ivPic 显示图片的imageview
+     * @param url 下载图片的网络地址
+     */
+    public void getBitmapFromNet(ImageView ivPic, String url) {
+        new BitmapTask().execute(ivPic, url);//启动AsyncTask
+
+    }
+
+    /**
+     * AsyncTask就是对handler和线程池的封装
+     * 第一个泛型:参数类型
+     * 第二个泛型:更新进度的泛型
+     * 第三个泛型:onPostExecute的返回结果
+     */
+    class BitmapTask extends AsyncTask<Object, Void, Bitmap> {
+
+        private ImageView ivPic;
+        private String url;
+
+        /**
+         * 后台耗时操作,存在于子线程中
+         * @param params
+         * @return
+         */
+        @Override
+        protected Bitmap doInBackground(Object[] params) {
+            ivPic = (ImageView) params[0];
+            url = (String) params[1];
+
+            return downLoadBitmap(url);
+        }
+
+        /**
+         * 更新进度,在主线程中
+         * @param values
+         */
+        @Override
+        protected void onProgressUpdate(Void[] values) {
+            super.onProgressUpdate(values);
+        }
+
+        /**
+         * 耗时方法结束后执行该方法,主线程中
+         * @param result
+         */
+        @Override
+        protected void onPostExecute(Bitmap result) {
+            if (result != null) {
+                ivPic.setImageBitmap(result);
+                System.out.println("从网络缓存图片啦.....");
+
+                //从网络获取图片后,保存至本地缓存
+                mLocalCacheUtils.setBitmapToLocal(url, result);
+                //保存至内存中
+                mMemoryCacheUtils.setBitmapToMemory(url, result);
+
+            }
+        }
+    }
+
+    /**
+     * 网络下载图片
+     * @param url
+     * @return
+     */
+    private Bitmap downLoadBitmap(String url) {
+        HttpURLConnection conn = null;
+        try {
+            conn = (HttpURLConnection) new URL(url).openConnection();
+            conn.setConnectTimeout(10000);//超时时间为10秒
+            conn.setReadTimeout(5000);
+            conn.setRequestMethod("GET");//使用GET方法访问网络
+
+            int responseCode = conn.getResponseCode();
+            if (responseCode == 200) {
+                //图片压缩
+                BitmapFactory.Options options = new BitmapFactory.Options();
+                options.inSampleSize=2;//宽高压缩为原来的1/2
+                options.inPreferredConfig=Bitmap.Config.ARGB_4444;
+                Bitmap bitmap = BitmapFactory.decodeStream(conn.getInputStream(),null,options);
+                return bitmap;
+            }
+        } catch (IOException e) {
+            e.printStackTrace();
+        } finally {
+            conn.disconnect();
+        }
+
+        return null;
+    }
+}

app/src/main/java/com/bonait/bnframework/modules/home/fragment/from/DiyActivity.java

@@ -243,14 +243,11 @@ public class DiyActivity extends BaseActivity implements MyClickListener {
      * @param arrayList
      */
     private void Drawable_Get(List arrayList) {
-        //从drawable文件夹下获取到事先准备的图片，在这里演示三张图片
-        Drawable drawable = getResources().getDrawable(R.mipmap.hgr);
-        Drawable drawable1 = getResources().getDrawable(R.mipmap.hgr);
-        Drawable drawable2 = getResources().getDrawable(R.mipmap.hgr);
         //把他们存放到一个list集合中
-        arrayList.add(drawable);
-        arrayList.add(drawable1);
-        arrayList.add(drawable2);
+        arrayList.add(getResources().getDrawable(R.mipmap.image1));
+        arrayList.add(getResources().getDrawable(R.mipmap.image2));
+        arrayList.add(getResources().getDrawable(R.mipmap.image3));
+        arrayList.add(getResources().getDrawable(R.mipmap.image4));
         //调用轮播图设置方法
         Banner_Set(Banner_list);
     }

app/src/main/java/com/bonait/bnframework/modules/home/fragment/from/DiyUpdateActivity.java

@@ -271,14 +271,10 @@ public class DiyUpdateActivity extends BaseActivity {
      * @param arrayList
      */
     private void Drawable_Get(List arrayList) {
-        //从drawable文件夹下获取到事先准备的图片，在这里演示三张图片
-        Drawable drawable = getResources().getDrawable(R.mipmap.hgr);
-        Drawable drawable1 = getResources().getDrawable(R.mipmap.hgr);
-        Drawable drawable2 = getResources().getDrawable(R.mipmap.hgr);
-        //把他们存放到一个list集合中
-        arrayList.add(drawable);
-        arrayList.add(drawable1);
-        arrayList.add(drawable2);
+        arrayList.add(getResources().getDrawable(R.mipmap.image1));
+        arrayList.add(getResources().getDrawable(R.mipmap.image2));
+        arrayList.add(getResources().getDrawable(R.mipmap.image3));
+        arrayList.add(getResources().getDrawable(R.mipmap.image4));
         //调用轮播图设置方法
         Banner_Set(Banner_list);
     }

app/src/main/java/com/bonait/bnframework/modules/home/fragment/mode/QDListSectionAdapter.java

@@ -13,6 +13,7 @@ import android.widget.TextView;
 import com.bonait.bnframework.R;
 import com.bonait.bnframework.common.constant.MessageName;
 import com.bonait.bnframework.common.helper.I.MyClickListener;
+import com.bonait.bnframework.common.image.MyBitmapUtils;
 import com.bonait.bnframework.common.message.MessageManager;
 import com.bonait.bnframework.common.utils.AlertDialogUtils;
 import com.bonait.bnframework.common.utils.ToastUtils;
@@ -24,12 +25,14 @@ import com.qmuiteam.qmui.widget.section.QMUISection;
 public class QDListSectionAdapter extends QMUIDefaultStickySectionAdapter {
     private TextView tvTag ,tvNote,tvAccount,Sc_text,delete_text;
 
-    private RelativeLayout ImageUrl;//图片
+    private ImageView ImageUrl;//图片
 
     private ImageView sc_image;//是否收藏
 
     public boolean IsSC=false;
 
+    //图标
+    private MyBitmapUtils myBitmapUtils=new MyBitmapUtils();
     /**
      * 点击事件
      */
@@ -75,7 +78,8 @@ public class QDListSectionAdapter extends QMUIDefaultStickySectionAdapter {
         tvTag.setText(name);
         tvNote.setText("时间："+ ((SectionItem)section.getItemAt(itemIndex)).getNote()+"秒");
         //设置图片
-        ImageUrl.setBackground(holder.itemView.getContext().getResources().getDrawable(R.mipmap.hgr));
+        //ImageUrl.setBackground(holder.itemView.getContext().getResources().getDrawable(R.mipmap.hgr));
+        myBitmapUtils.disPlay(ImageUrl,"https://hbl-test-1305371387.cos.ap-chengdu.myqcloud.com/Franchisee/001/goods/133329989655737022.jpg");
         //上传按钮点击
         Sc_text.setOnClickListener(new View.OnClickListener() {
             @Override

app/src/main/res/layout/item/layout/note_rv_tree_second.xml

@@ -13,7 +13,7 @@
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:orientation="vertical">
-        <RelativeLayout
+        <ImageView
             android:id="@+id/ImageUrl"
             android:layout_margin="3dp"
             android:layout_width="match_parent"