Android中判断有无可用网络的代码(是否是3G或者WIFI网络)
实现代码如下: ConnectivityManager mConnectivity = (ConnectivityManager)getSystemService(Context.CONNECTIVITY_SERVICE); TelephonyManager mTelephony = (Teleph
实现代码如下: ConnectivityManager mConnectivity = (ConnectivityManager)getSystemService(Context.CONNECTIVITY_SERVICE); TelephonyManager mTelephony = (Teleph