android是否有网络,android判断是否有网络

package com.microcorecn.tienalmusic.ui.utils;

import com.microcorecn.tienalmusic.TalaintMusicApplication;

import com.microcorecn.tienalmusic.ui.activity.login.LoginActivity;

import android.app.Activity;

import android.content.Context;

import android.content.Intent;

import android.net.ConnectivityManager;

import android.net.NetworkInfo;

import android.telephony.TelephonyManager;

import android.util.Log;

import android.view.View;

import android.webkit.WebView;

import android.widget.LinearLayout;

import android.widget.RelativeLayout;

import android.widget.Toast;

public final class IsNetwork {

/**

* 判断手机是否联网

* @return

*/

public static boolean isNetwork(Context context) {

ConnectivityManager connectivityManager = (ConnectivityManager)context.getSystemService(Context.CONNECTIVITY_SERVICE);

if(connectivityManager == null) {

return false;

}

if( connectivityManager.getActiveNetworkInfo()==null){

return false;

}

return connectivityManager.getActiveNetworkInfo().isAvailable();

}

//是否是wifi网络

public static boolean isWIFINetwork() {

ConnectivityManager connectivityManager = (ConnectivityManager)TalaintMusicApplication.getInstance().getApplicationContext().getSystemService(Context.CONNECTIVITY_SERVICE);

if(connectivityManager == null) {

return false;

}else{

NetworkInfo[] info = connectivityManager.getAllNetworkInfo();

if (info != null) {

for (int i = 0; i < info.length; i++) {

if (info[i].getTypeName().equals("WIFI") && info[i].isConnected()) {

return true;

}

}

}

}

return false;

}

public static void connectNet(Context context, WebView webView, String url, RelativeLayout relativeLayout){

//webView.loadUrl(url);

Log.e("stopnet", "start check");

if (isNetwork(context)) {

relativeLayout.setVisibility(View.GONE);

webView.setVisibility(View.VISIBLE);

Log.e("stopnet", "start load");

webView.loadUrl(url);

}else {

relativeLayout.setVisibility(View.VISIBLE);

webView.setVisibility(View.GONE);

Toast.makeText(context, "手机网络不通,请先打开网络连接！", Toast.LENGTH_LONG).show();

}

Log.e("stopnet", "end check");

}

/**

*提示用户使用的网络

* @return

*/

public static int currentNetwork() {

ConnectivityManager mgrConn = (ConnectivityManager)TalaintMusicApplication.getInstance().getApplicationContext() .getSystemService(Context.CONNECTIVITY_SERVICE);

NetworkInfo networkInfo = mgrConn.getActiveNetworkInfo();

if (networkInfo != null ) {

if(networkInfo.getType() == ConnectivityManager.TYPE_WIFI){ //是否是wifi

return 1; //

}

if(networkInfo.getType() == ConnectivityManager.TYPE_MOBILE){//是否是3G网络

return 2; //

}

}

return 0;

}

/**

* 提示用户网络入口

* @param webView

* @param url

*/

public static void currentConnectNet(WebView webView, String url){

if (currentNetwork()==1) {

Toast.makeText(TalaintMusicApplication.getInstance().getApplicationContext(), "XXXX有你最喜欢的音乐，歌手,祝你音乐之旅愉快！", Toast.LENGTH_LONG).show();

webView.loadUrl(url);

}

else if (currentNetwork()==2) {

Toast.makeText(TalaintMusicApplication.getInstance().getApplicationContext(), "当前使用3G网络，使用wifi会给你带来更完美的体验", Toast.LENGTH_LONG).show();

webView.loadUrl(url);

}else if(currentNetwork()==0){

Toast.makeText(TalaintMusicApplication.getInstance().getApplicationContext(), "手机网络不通,请先打开网络连接！", Toast.LENGTH_LONG).show();

}

}

}