检查是否启用了GPS和/或移动网络位置

Question

我试图检查移动网络位置是否位于GPS和/或WiFi &。我目前的代码只适用于GPS，我试图尝试包括网络提供商，但我收到以下错误。

第一个错误

The method isProviderEnabled(String) in the type LocationManager is not applicable for the arguments (String, String)

---

目前代码

if (locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER, LocationManager.NETWORK_PROVIDER)){ 
      Toast.makeText(this, "GPS is Enabled in your device", Toast.LENGTH_SHORT).show(); 
     }else{ 
      displayAlert(); 
     } 

---

Answer 1

你必须检查每个单独提供：

if (locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER) || 
    locationManager.isProviderEnabled(LocationManager.NETWORK_PROVIDER)){ 
     Toast.makeText(this, "GPS/Network is Enabled in your device", 
      Toast.LENGTH_SHORT).show(); 
    }else{ 
     displayAlert(); 
    } 

Answer 2

如果您看到isProvideEnabled(String)的文档，则只允许一个字符串作为参数。所以，你可以做seperately的检查：

boolean gpsPresent = locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER); 
boolean networkProviderPresent = locationManager.isProviderEnabled(LocationManager.NETWORK_PROVIDER); 

然后你可以检查它们的@ianhanniballake说，或者类似的东西：

if ((!gpsPresent) && (!networkProviderPresent)){ 
    displayAlert(); // Nothing is available to give the location 
}else { 
    if (gpsPresent){ 
     Toast.makeText(this, "GPS is Enabled in your device", Toast.LENGTH_SHORT).show();  
    } 
    if (networkProviderPresent){ 
     Toast.makeText(this, "Network Provider is Present on your device", Toast.LENGTH_SHORT).show(); 
    } 
} 

希望这有助于。