如何以編程方式檢查數據漫遊是否啓用/禁用？

Question

我試圖檢查用戶是否啓用/禁用數據漫遊。到目前爲止，我發現的所有情況都是可以使用TelephonyManager.isNetworkRoaming（）和NetworkInfo.isRoaming（）來檢查用戶是否正在漫遊，但它們不是我需要的。

Answer 1

您可以通過請求漫遊開關的狀態

ContentResolver cr = ContentResolver(getCurrentContext()); 
Settings.Secure.getInt(cr, Settings.Secure.DATA_ROAMING); 

參見：http://developer.android.com/reference/android/provider/Settings.Secure.html#DATA_ROAMING

Answer 2

基於Nippey的答案，那對我工作的實際代碼的段子：

public Boolean isDataRoamingEnabled(Context context) { 
    try { 
     // return true or false if data roaming is enabled or not 
     return Settings.Secure.getInt(context.getContentResolver(), Settings.Secure.DATA_ROAMING) == 1; 
    } 
    catch (SettingNotFoundException e) { 
     // return null if no such settings exist (device with no radio data ?) 
     return null; 
    } 
} 

Answer 3

更新了用於解釋API棄用的函數。現在已替換爲： http://developer.android.com/reference/android/provider/Settings.Global.html#DATA_ROAMING

public static boolean IsDataRoamingEnabled(Context context) { 
    try { 
     // return true or false if data roaming is enabled or not 
     return Settings.Global.getInt(context.getContentResolver(), Settings.Global.DATA_ROAMING) == 1; 
    } 
    catch (SettingNotFoundException e) { 
     return false; 
    } 
} 

Answer 4

public static final Boolean isDataRoamingEnabled(final Context APPLICATION_CONTEXT) 
{ 
    try 
    { 
     if (VERSION.SDK_INT < 17) 
     { 
      return (Settings.System.getInt(APPLICATION_CONTEXT.getContentResolver(), Settings.Secure.DATA_ROAMING, 0) == 1); 
     } 
     else 
     { 
      return (Settings.Global.getInt(APPLICATION_CONTEXT.getContentResolver(), Settings.Global.DATA_ROAMING, 0) == 1); 
     } 
    } 
    catch (Exception exception) 
    { 
     return false; 
    } 
}