無法看到對話框中的危險權限

我建立了權限管理器，並在清單中添加了GPS權限，因爲GPS是危險的權限。但是，當我運行我的應用程序時，我看不到這個權限的任何對話框，，因爲該應用程序敬酒我，我沒有允許這個權限，即使我從來沒有機會允許或阻止對話框的權限框。

希望得到任何形式的幫助，這些都是我的課：

清單許可

<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />

MainActiviey

public class MainActivity extends AppCompatActivity { 

public static final int GPS=1; 
public static final String gpsFinePermission="Manifest.permission.ACCESS_FINE_LOCATION"; 

@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_main); 
    PermissionManager.check(MainActivity.this, gpsFinePermission, GPS); 
    System.out.println("1"); 
} 


@Override 
protected void onStart() { 
    //startService(new Intent(this,CurrentLocation.class)); 
    super.onStart(); 
    System.out.println("2"); 
} 

@Override//when user allowed OR denied a permission 
public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) { 
    System.out.println("3"); 
    if(grantResults[0] == PackageManager.PERMISSION_GRANTED && requestCode == GPS){//Allowed 
     Toast.makeText(MainActivity.this, "GPS permission granted", Toast.LENGTH_LONG).show(); 
     System.out.println("4"); 
    }else 
     Toast.makeText(MainActivity.this, "GPS permission is IMPORTANT for this app", Toast.LENGTH_LONG).show(); 
    } 
}

權限管理

public class PermissionManager { 
//A method that can be called from any Activity, to check for specific permission 
public static void check(Activity activity, String permission, int requestCode){ 
    System.out.println("5"); 
    //If requested permission isn't Granted yet 
    if (ActivityCompat.checkSelfPermission(activity, permission) != PackageManager.PERMISSION_GRANTED) { 
     System.out.println("6"); 
     //Request permission from user 
     ActivityCompat.requestPermissions(activity,new String[]{permission},requestCode); 
    } 
} 
}

來源

2017-08-31 Tamir Abutbul

您應該從Manifest.permission類獲得一個字符串。但你正在通過Manifest.permission.ACCESS_FINE_LOCATION作爲字符串。你不應該使用這個。

public static final String gpsFinePermission="Manifest.permission.ACCESS_FINE_LOCATION";

使用此。

public static final String gpsFinePermission= Manifest.permission.ACCESS_FINE_LOCATION;

來源

2017-08-31 09:59:03

無法看到對話框中的危險權限

回答

相關問題