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安卓判断网络状态以及进入配置网络

作者：jao 发布于：2014-8-30 23:38 分类：Andriod开发

文件名:networkInfo.java

package com.jao.other.functions;

import android.content.Context;
import android.content.Intent;
import android.net.ConnectivityManager;
import android.provider.Settings;
import android.util.Log;

public class networkInfo {


	public static boolean checkNetworkInfo(Context context){
		Context c=context;
        ConnectivityManager conMan = (ConnectivityManager) c.getSystemService(Context.CONNECTIVITY_SERVICE);

        //mobile 3G Data Network
        android.net.NetworkInfo.State mobile = conMan.getNetworkInfo(ConnectivityManager.TYPE_MOBILE).getState();
        Log.v("3G",String.valueOf(mobile));  //CONNECTED ||DISCONNECTED

        //wifi
        android.net.NetworkInfo.State wifi = conMan.getNetworkInfo(ConnectivityManager.TYPE_WIFI).getState();
        Log.v("WIFI",String.valueOf(wifi));  //NOKNOWN || CONNECTED  ||DISCONNECTED
        
        //如果3G网络和wifi网络都未连接，且不是处于正在连接状态 则进入Network Setting界面 由用户配置网络连接
        if(mobile==android.net.NetworkInfo.State.CONNECTED||mobile==android.net.NetworkInfo.State.CONNECTING)
            return true;
        if(wifi==android.net.NetworkInfo.State.CONNECTED||wifi==android.net.NetworkInfo.State.CONNECTING)
            return true;
        
		return false;
        
    }
	
	public static void changeNetwork(Context context){
		context.startActivity(new Intent(Settings.ACTION_WIRELESS_SETTINGS));//进入无线网络配置界面
	}
}

调用方法:

首先是权限配置:<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"></uses-permission>

boolean state=networkInfo.checkNetworkInfo(context);

if(!state){

    networkInfo.changeNetwork(context); 

}

标签: 安卓 网络状态