【代码】Android NetworkInfo类中的相关判断

获取网络信息首先需要在AndroidManifest.xml文件中配置权限，这里不再多说。

1.判断WIFI网络是否可用

复制代码 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; }

2.判断是否有网络连接

复制代码 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; }

3.判断MOBILE网络是否可用

复制代码 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

复制代码 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; }

5.判断网络状态是否断开

复制代码 public boolean isConnectInternet() { ConnectivityManager conManager=(ConnectivityManager)getSystemServiceContext.CONNECTIVITY_SERVICE ); NetworkInfo networkInfo = conManager.getActiveNetworkInfo(); if (networkInfo != null ){ // 注意，这个判断一定要的哦，要不然会出错 return networkInfo.isAvailable(); } return false ; }