Android 数据流量（3G，4G）与wifi 转换实时监听

实时监听"/>

Android 数据流量（3G，4G）与wifi 转换实时监听

第一次登录状态改变

3G改成wifi状态变化

IntentFilter filter = new IntentFilter();//代码中注册

filter.addAction(WifiManager.WIFI_STATE_CHANGED_ACTION);
filter.addAction(WifiManager.NETWORK_STATE_CHANGED_ACTION);
filter.addAction(ConnectivityManager.CONNECTIVITY_ACTION);
registerReceiver(new NetworkConnectChangedReceiver(), filter);

public class NetworkConnectChangedReceiver extends BroadcastReceiver {private String getConnectionType(int type) {String connType = "";
        if (type == ConnectivityManager.TYPE_MOBILE) {connType = "3G网络数据";
        } else if (type == ConnectivityManager.TYPE_WIFI) {connType = "WIFI网络";
        }return connType;
    }@Override
    public void onReceive(Context context, Intent intent) {if (WifiManager.WIFI_STATE_CHANGED_ACTION.equals(intent.getAction())) {// 监听wifi的打开与关闭，与wifi的连接无关
            int wifiState = intent.getIntExtra(WifiManager.EXTRA_WIFI_STATE, 0);
            Log.e("TAG", "wifiState:" + wifiState);
            switch (wifiState) {case WifiManager.WIFI_STATE_DISABLED:
                    break;
                case WifiManager.WIFI_STATE_DISABLING:
                    break;
            }}// 监听wifi的连接状态即是否连上了一个有效无线路由
        if (WifiManager.NETWORK_STATE_CHANGED_ACTION.equals(intent.getAction())) {Parcelable parcelableExtra = intent
                    .getParcelableExtra(WifiManager.EXTRA_NETWORK_INFO);
            if (null != parcelableExtra) {// 获取联网状态的NetWorkInfo对象
                NetworkInfo networkInfo = (NetworkInfo) parcelableExtra;
                //获取的State对象则代表着连接成功与否等状态
                NetworkInfo.State state = networkInfo.getState();
                //判断网络是否已经连接
                boolean isConnected = state == NetworkInfo.State.CONNECTED;
                Log.e("TAG", "isConnected:" + isConnected);
                if (isConnected) {} else {}}}// 监听网络连接，包括wifi和移动数据的打开和关闭,以及连接上可用的连接都会接到监听
        if (ConnectivityManager.CONNECTIVITY_ACTION.equals(intent.getAction())) {//获取联网状态的NetworkInfo对象
            NetworkInfo info = intent
                    .getParcelableExtra(ConnectivityManager.EXTRA_NETWORK_INFO);
            if (info != null) {//如果当前的网络连接成功并且网络连接可用
                if (NetworkInfo.State.CONNECTED == info.getState() && info.isAvailable()) {if (info.getType() == ConnectivityManager.TYPE_WIFI){
                        Log.e("TAG", getConnectionType(info.getType()) + "连上（wifi）"+host[0][0]);

                    }else if (info.getType() == ConnectivityManager.TYPE_MOBILE){
                        Log.e("TAG", getConnectionType(info.getType()) + "连上（3g）"+host[0][0]);
                    }} else {Log.e("TAG", getConnectionType(info.getType()) + "断开");
                }}}}
}

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