Question

当我试图请求许可时，请求对话框出现，背景变黑，无论用户按下什么＆＃34;允许＆＃34;或＆＃34;拒绝＆＃34;应用程序正在关闭，而不是像文档中提到的那样重新启动。这是我的代码

if (ActivityCompat.checkSelfPermission(Login_Activity.this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(Login_Activity.this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED)
         ActivityCompat.requestPermissions(Login_Activity.this,new String[]{Manifest.permission.ACCESS_FINE_LOCATION,Manifest.permission.ACCESS_COARSE_LOCATION}, 1);


@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String permissions[], @NonNull int[] grantResults)
{
    switch (requestCode)
    {
        case 1:
            // If request is cancelled, the result arrays are empty.
            if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED)
            {
                //
            }
            else
            {
                //
            }

        break;
    }
}

Answer 1

活动不会重启。一旦用户授予权限，您应该在此处调用所需的功能。

用户响应后，将调用此方法。

@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String permissions[], @NonNull int[] grantResults)
{
    switch (requestCode)
    {
        case 1:
            // If request is cancelled, the result arrays are empty.
            if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED)
            {
                // Here you should call the functions whatever you want 
            }
            else
            {
                //If user didn't provide you permission. You will get this else statement. SO you should omit to call the functions(ex. If you requested for the camera access . You shouldn't call the camera functions after user denying permission. If you do app will crash)
            }

        break;
    }
}

如果您想在用户授予权限后重新启动课程

Intent intent = getIntent();
finish();
startActivity(intent);

在if语句中调用此函数。

在Android 6.0中请求权限时，活动未重新启动

1 个答案: