Android: 判断网络状态
16lz
2022-04-19
判断当前Wifi或Ethernet连接状态:
public static boolean isNetworkConnected(Context context) {ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);NetworkInfo info = cm.getActiveNetworkInfo();if (info != null) {int type = info.getType();if (type == ConnectivityManager.TYPE_WIFI || type == ConnectivityManager.TYPE_ETHERNET) {return info.isAvailable();}} return false;}
BroadcastReceiver中监测Wifi或Ethernet连接状态:
if (ConnectivityManager.CONNECTIVITY_ACTION.equals(action)) {Bundle extras = intent.getExtras();if (extras != null) { NetworkInfo networkInfo = (NetworkInfo)extras.get(ConnectivityManager.EXTRA_NETWORK_INFO); if (networkInfo == null) return; State state = networkInfo.getState(); int networkType = networkInfo.getType(); if (networkType == ConnectivityManager.TYPE_WIFI || networkType == ConnectivityManager.TYPE_ETHERNET) { if (state == State.CONNECTED) { mListener.onNetworkStateChange(true); } else if (state == State.DISCONNECTED) { mListener.onNetworkStateChange(false); } } }}
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