Android网络连接的判断

来源：互联网发布：怎么做淘宝优惠券编辑：程序博客网时间：2024/05/17 05:00

原文地址：http://weixueliang89.blog.163.com/blog/static/1979217742012315152467/

在android中，如何判断网络是否连接或WIFI已连接呢，很简单，可以用如下的方法判断

public staticboolean checkNetworkConnection(Context context) {
finalConnectivityManager connMgr= (ConnectivityManager)context.getSystemService(Context.CONNECTIVITY_SERVICE);

final android.net.NetworkInfo wifi =connMgr.getNetworkInfo(ConnectivityManager.TYPE_WIFI);
final android.net.NetworkInfo mobile=connMgr.getNetworkInfo(ConnectivityManager.TYPE_MOBILE);

    if(wifi.isAvailable()||mobile.isAvailable())
        return true;
    else
        return false;
}

二、不区分wifi和mobile，直接判断网络是否可用：

private boolean isNetWorkConnected(){
        ConnectivityManager manager = (ConnectivityManager) getSystemService(CONNECTIVITY_SERVICE);
        NetworkInfo info = manager.getActiveNetworkInfo();
        return (info != null && info.isConnected());
}

原文地址：

http://www.xue5.com/Mobile/Android/655948.html

1）判断是否有网络连接

public boolean isNetworkConnected(Context context) {       if (context != null) {           ConnectivityManager mConnectivityManager = (ConnectivityManager) context                   .getSystemService(Context.CONNECTIVITY_SERVICE);           NetworkInfo mNetworkInfo = mConnectivityManager.getActiveNetworkInfo();           if (mNetworkInfo != null) {               return mNetworkInfo.isAvailable();           }       }       return false;   }

2）判断WIFI网络是否可用

public boolean isWifiConnected(Context context) {       if (context != null) {           ConnectivityManager mConnectivityManager = (ConnectivityManager) context                   .getSystemService(Context.CONNECTIVITY_SERVICE);           NetworkInfo mWiFiNetworkInfo = mConnectivityManager                   .getNetworkInfo(ConnectivityManager.TYPE_WIFI);           if (mWiFiNetworkInfo != null) {               return mWiFiNetworkInfo.isAvailable();           }       }       return false;   }

3）判断MOBILE网络是否可用

public boolean isMobileConnected(Context context) {       if (context != null) {           ConnectivityManager mConnectivityManager = (ConnectivityManager) context                   .getSystemService(Context.CONNECTIVITY_SERVICE);           NetworkInfo mMobileNetworkInfo = mConnectivityManager                   .getNetworkInfo(ConnectivityManager.TYPE_MOBILE);           if (mMobileNetworkInfo != null) {               return mMobileNetworkInfo.isAvailable();           }       }       return false;   }

4）获取当前网络连接的类型信息

public static int getConnectedType(Context context) {       if (context != null) {           ConnectivityManager mConnectivityManager = (ConnectivityManager) context                   .getSystemService(Context.CONNECTIVITY_SERVICE);           NetworkInfo mNetworkInfo = mConnectivityManager.getActiveNetworkInfo();           if (mNetworkInfo != null && mNetworkInfo.isAvailable()) {               return mNetworkInfo.getType();           }       }       return -1;   }