Volley的简单二次封装

新建一个application

 package com.honghe.myvolley.app;

 import com.android.volley.RequestQueue;
 import com.android.volley.toolbox.Volley;

 import android.app.Application;

 public class MyApplication extends Application {
     private static RequestQueue queues;

     @Override
     public void onCreate() {
         super.onCreate();
         queues = Volley.newRequestQueue(getApplicationContext());
     }

     public static RequestQueue getHttpQueue() {

         return queues;
     }

 }

在xml文件中注册为启动的application

 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="com.honghe.myvolley"
     android:versionCode="1"
     android:versionName="1.0" >

     <uses-sdk
         android:minSdkVersion="8"
         android:targetSdkVersion="22" />
     <uses-permission android:name="android.permission.INTERNET"/>

     <application
         android:name="com.honghe.myvolley.app.MyApplication"
         android:allowBackup="true"
         android:icon="@drawable/ic_launcher"
         android:label="@string/app_name" >
         <activity
             android:name="com.honghe.myvolley.Activity.MainActivity"
             android:label="@string/app_name" >
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />

                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>
     </application>

 </manifest>

编写volleyrequest类，实现get和post方法

 package com.honghe.myvolley.Volley;

 import java.util.Map;

 import android.content.Context;

 import com.android.volley.AuthFailureError;
 import com.android.volley.Request.Method;
 import com.android.volley.toolbox.StringRequest;
 import com.honghe.myvolley.app.MyApplication;

 public class VolleyRequest {
     public static StringRequest stringRequest;
     public static Context context;

     public static void RequestGet(Context mContext, String url, String tag,
             VolleyInterface vif) {
         MyApplication.getHttpQueue().cancelAll(tag);
         stringRequest = new StringRequest(Method.GET, url,
                 vif.loadingListener(), vif.errorListener());
         stringRequest.setTag(tag);
         MyApplication.getHttpQueue().add(stringRequest);
         MyApplication.getHttpQueue().start();
     }

     public static void RequestPost(Context mContext, String url, String tag,
             final Map<String, String> params, VolleyInterface vif) {
         MyApplication.getHttpQueue().cancelAll(tag);
         stringRequest = new StringRequest(url, vif.loadingListener(),
                 vif.errorListener()) {

             @Override
             protected Map<String, String> getParams() throws AuthFailureError {

                 return params;
             }

         };

         stringRequest.setTag(tag);
         MyApplication.getHttpQueue().add(stringRequest);
         MyApplication.getHttpQueue().start();
     }

 }

设置volleyInterface的回调

 package com.honghe.myvolley.Volley;

 import android.content.Context;

 import com.android.volley.Response.ErrorListener;
 import com.android.volley.Response.Listener;
 import com.android.volley.VolleyError;

 public abstract class VolleyInterface {

     public Context mContext;
     public Listener<String> mListener;
     public ErrorListener mErrorListener;

     public VolleyInterface(Context context) {
         this.mContext = context;
     }

     public Listener<String> loadingListener() {
         mListener = new Listener<String>() {

             @Override
             public void onResponse(String arg0) {
                 OnMySuccess(arg0);
             }
         };
         return mListener;
     }

     public ErrorListener errorListener() {

         mErrorListener = new ErrorListener() {

             @Override
             public void onErrorResponse(VolleyError arg0) {
                 OnMyError(arg0);
             }
         };
         return mErrorListener;
     }

     public abstract void OnMySuccess(String result);

     public abstract void OnMyError(VolleyError arg0);
 }

如何使用

 protected void VolleyGet(String url, String tag) {
         VolleyRequest.RequestGet(this, url, tag, new VolleyInterface(this) {

             @Override
             public void OnMySuccess(String result) {

             }

             @Override
             public void OnMyError(VolleyError arg0) {

             }
         });
     }