android - 移动网络存在检测

Question

我的应用程序仅在移动网络可用时才发送 SMS。目前我已经设置了 WIFI 并且存在移动网络。

执行时的以下代码片段给了我：

public boolean isNetworkAvailable(Context context) {
    final ConnectivityManager connMgr = (ConnectivityManager) context
            .getSystemService(Context.CONNECTIVITY_SERVICE);        
    // WIFI is ON and MOBILE Network is present.
    final NetworkInfo mobileNetwork = connMgr
            .getNetworkInfo(ConnectivityManager.TYPE_MOBILE);
    final State mobileState = mobileNetwork.getState();

    if(mobileNetwork!=null)
    {
        // RETURNS FALSE
        Log.d("Contacts","mobileNetwork.isConnected() "+mobileNetwork.isConnected());
        // RETURNS FALSE
        Log.d("Contacts","isConnectedOrConnecting() "+mobileNetwork.isConnectedOrConnecting());
        // RETURNS TRUE
        Log.d("Contacts","mobileNetwork.isAvailable()() "+mobileNetwork.isAvailable());
        return mobileNetwork.isAvailable();
    }

    return false;

}

问题是现在如何根据以上三行返回的值来检测我是否可以发送短信？

由于 isAvailable() 返回 true 而其他 2 行返回 false；

解决方案

我想出了这个代码：

TelephonyManager telMgr =   (TelephonyManager)getSystemService(Context.TELEPHONY_SERVICE);
    int simCardState = telMgr.getSimState();        
    int simNetworkType = telMgr.getNetworkType();
    int simDataState = telMgr.getDataState();   
    if(simCardState == TelephonyManager.SIM_STATE_READY && simDataState == TelephonyManager.DATA_CONNECTED)
    {
        //NETWORK IS AVAILABLE FOR SENDING SMS
    }

Answer 1

此代码应该可以帮助您检测不同的状态

TelephonyManager telMgr = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
int simCardState = telMgr.getSimState();
switch (simCardState) {
   case TelephonyManager.SIM_STATE_ABSENT:
       // do something
       break;
   case TelephonyManager.SIM_STATE_NETWORK_LOCKED:
       // do something
       break;
   case TelephonyManager.SIM_STATE_PIN_REQUIRED:
       // do something
       break;
   case TelephonyManager.SIM_STATE_PUK_REQUIRED:
       // do something
       break;
   case TelephonyManager.SIM_STATE_READY:
       // here you may set a flag that the phone is ready to send SMS
       break;
   case TelephonyManager.SIM_STATE_UNKNOWN:
       // do something
       break;
}