如何使GPS功能正常工作？

Question

我是新來的Eclipse和Android應用程序，所以這裏提出了一個非常新的問題。我如何使這個功能正常工作？我剛剛複製>粘貼到我的public class nowActivity extends Activity {並修復了符合的錯誤。功能如下：

package weather.right; 

import weather.right.now.R; 
import android.app.Activity; 
import android.app.AlertDialog; 
import android.content.DialogInterface; 
import android.content.Intent; 
import android.location.LocationManager; 
import android.net.Uri; 
import android.os.Bundle; 
import android.view.View; 
import android.widget.TextView; 
import android.widget.Toast; 

public class nowActivity extends Activity { 
    /** Called when the activity is first created. */ 
    @Override 
    public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.main); 

     super.onCreate(savedInstanceState); 
     setContentView(R.layout.main); 
     LocationManager locationManager = (LocationManager) getSystemService(LOCATION_SERVICE); 

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

    public void goToSo(View view) { 
     goToUrl("http://erik-edgren.nu/weather"); 
    } 

    private void goToUrl(String url) { 
     Uri uriUrl = Uri.parse(url); 
     Intent launchBrowser = new Intent(Intent.ACTION_VIEW, uriUrl); 
     startActivity(launchBrowser); 
    } 

     private void showGPSDisabledAlertToUser(){ 
     AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(this); 
       alertDialogBuilder.setMessage("GPS is disabled in your device. Would you like to enable it?") 
      .setCancelable(false) 
      .setPositiveButton("Goto Settings Page To Enable GPS", 
        new DialogInterface.OnClickListener(){ 
        public void onClick(DialogInterface dialog, int id){ 
          Intent callGPSSettingIntent = new Intent(
               android.provider.Settings.ACTION_LOCATION_SOURCE_SETTINGS); 
           startActivity(callGPSSettingIntent); 
        } 
      }); 
      alertDialogBuilder.setNegativeButton("Cancel", 
        new DialogInterface.OnClickListener(){ 
        public void onClick(DialogInterface dialog, int id){ 
         dialog.cancel(); 
        } 
      }); 
     AlertDialog alert = alertDialogBuilder.create(); 
     alert.show(); 
     } 
} 

在此先感謝。

Answer 1

protected void onCreate1(Bundle savedInstanceState)應該是protected void onCreate(Bundle savedInstanceState)？

你應該重寫onCreate()方法。有關更多詳細信息，請參閱this。

對於Android，Activity的子類應該實現某些方法，所以要執行此操作，必須嚴格匹配父類的方法來重寫某些方法。 onCreate()就是這樣一種方法。

對於仿真器，可以按照指南here來測試GPS。否則，它將顯示爲禁用。