无法看到对话框中的危险权限

我建立了权限管理器，并在清单中添加了GPS权限，因为GPS是危险的权限。但是，当我运行我的应用程序时，我看不到这个权限的任何对话框，，因为该应用程序敬酒我，我没有允许这个权限，即使我从来没有机会允许或阻止对话框的权限框。

希望得到任何形式的帮助，这些都是我的课：

清单许可

<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(); 
    } 
}

权限管理

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); 
    } 
} 
}

来源

2017-08-31 Tamir Abutbul

您应该从Manifest.permission类获得一个字符串。但你正在通过Manifest.permission.ACCESS_FINE_LOCATION作为字符串。你不应该使用这个。

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

使用此。

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

来源

2017-08-31 09:59:03

无法看到对话框中的危险权限

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