位置管理器删除更新权限 [英] Location Manager remove updates permission

问题描述

我正在使用android studio，compileSdkVersion是23 因为我正在使用下面的代码

I am using android studio and compileSdkVersion is 23 in that i am using below code

 if(locationManager != null){
            locationManager.removeUpdates(GPSListener.this);
        }

要停止gps更新，其中GPS侦听器是实现LocationListener的类.

to stop gps update where GPS Listener is a class which implements LocationListener.

但是在removeUpdates行中，我低于棉绒警告

but in removeUpdates line i am getting below lint warning

通话需要许可，但可能会被用户拒绝:代码应 明确检查权限是否可用(带有 checkPermission)或处理潜在的SecurityException

Call requires permission which may be rejected by user: code should explicitly check to see if permission is available (with checkPermission) or handle a potential SecurityException

我没有得到上面代码中的问题. 是否需要在清单文件中添加任何额外的权限?.

I am not getting what is the issue in the above code. Any extra permission need to be added in manifest file?.

致谢.

推荐答案

自SDK 23开始，您应该/需要在调用位置API功能之前检查许可权.这是一个如何做的例子:

Since SDK 23, you should/need to check the permission before you call Location API functionality. Here is an example of how to do it:

if (locationManager != null) {
    if (checkSelfPermission(Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED
            || checkSelfPermission(Manifest.permission.ACCESS_COARSE_LOCATION) == PackageManager.PERMISSION_GRANTED) {
        locationManager.removeUpdates(GPSListener.this);
    }
}

有一个checkSelfPermission()，用于检查您"(此应用程序)是否具有正确的权限.还有checkPermission()，用于检查另一个进程是否具有正确的权限.

There is checkSelfPermission(), which is to check if 'you' (this app) has the correct permissions. There is also checkPermission(), which is to check if another process has the correct permissions.

注释

• 除了执行此运行时检查外，还需要在AndroidManifest中要求相关权限.
• 如果您的targetSdk是< 23，您应该改用ContextCompat.checkSelfPermission()(感谢JerryBrady)

• next to doing this runtime check, it is still also necessary to require the relevant permissions in the AndroidManifest.
• if your targetSdk is < 23, you should use ContextCompat.checkSelfPermission() instead (thanks to JerryBrady)

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