如何在Android中監控網絡狀態

Question

如何在活動中監視網絡狀態？ 我正在使用Google聊天應用程序。

我只想在網絡狀態更改時執行這些行。

if(...){
    GTalkChatDetails.chat(getApplicationContext());
    GTalkChatDetails.adddMsgListener(getApplicationContext());
}

Answer 1

創建一個類來尋找信號變化，

private class SignalStrengthListener extends PhoneStateListener 
    {
        @Override
        public void onSignalStrengthsChanged(android.telephony.SignalStrength signalStrength) 
        {
            // get the signal strength (a value between 0 and 31)
            int strengthAmplitude = signalStrength.getGsmSignalStrength();
            // do something with it
            GTalkChatDetails.chat(getApplicationContext());
                    GTalkChatDetails.adddMsgListener(getApplicationContext());
            super.onSignalStrengthsChanged(signalStrength);
        }
    }