我必须为当前位置获得RUNTIMEPERMISSION

Question

我使用此功能来授予用户许可：

None

我将此代码添加到Manifest

RegisterGradient

我在onCreate（）中调用了它：

private void askForPermission(String permission, Integer requestCode)
{
    if (ContextCompat.checkSelfPermission(MainActivity.this, permission) != PackageManager.PERMISSION_GRANTED) {
        if (ActivityCompat.shouldShowRequestPermissionRationale(MainActivity.this, permission)) {
            ActivityCompat.requestPermissions(MainActivity.this, new String[]{permission}, requestCode);
        } else {
            ActivityCompat.requestPermissions(MainActivity.this, new String[]{permission}, requestCode);
        }
    } else {
        Toast.makeText(this,"we have", Toast.LENGTH_SHORT).show();
    }
}

用户允许，但当我在下一行检查时，返回给我权限否认！ 我想给出当前的位置。 我的错在哪里？

Answer 1

当用户点击允许或拒绝按钮时，你需要检查它调用的onRequestPermissionsResult（）的权限

final String[] NECESSARY_PERMISSIONS = new String[] {
            Manifest.permission.ACCESS_FINE_LOCATION
    };

    if ((ContextCompat.checkSelfPermission(DialerHomeActivity.this,
            Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED)) {

        //Granted

    } else {

        // ask for permission

            ActivityCompat.requestPermissions(DialerHomeActivity.this,
                    NECESSARY_PERMISSIONS, 123);
        }

    }




@Override
public void onRequestPermissionsResult(int requestCode,
                                       String permissions[], int[] grantResults) {
    switch (requestCode) {
        case 123:
            if (grantResults.length > 0) {

                if ((grantResults[0] == PackageManager.PERMISSION_GRANTED))) {
                    //Permission granted
                } else {

                    if ((grantResults[0] == PackageManager.PERMISSION_DENIED && !ActivityCompat
                            .shouldShowRequestPermissionRationale(
                                    getApplicationContext(),
                                    Manifest.permission.ACCESS_FINE_LOCATION))) {

                        //Permission deny with never ask again

                    } else {
                        //Permission deny
                    }
                }
            }

    }

}