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) {

            }
        });
    }