判断网络

定义一个类

public class NetWrokProwor {
  

    /**
         * 网络判断
         * @param context
         * @return
         */
        public static boolean getNetWrokProwor(Context context){
            ConnectivityManager systemService = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
    
            if(systemService == null){
                }else{
                NetworkInfo[] allNetworkInfo = systemService.getAllNetworkInfo();
                if(allNetworkInfo != null){
                    for (int i = 0 ; i< allNetworkInfo.length ; i++){
                        if(allNetworkInfo[i].getState() == NetworkInfo.State.CONNECTED){
                            return true;
                        }
                    }
                }
    
            }
            return false;
        }
    }