1 /*
2  * Copyright (C) 2020 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 package com.android.permissioncontroller.permission.ui.handheld
18 
19 import androidx.fragment.app.Fragment
20 import androidx.navigation.fragment.findNavController
21 
22 /**
23  * Press back and close the activity if this is the last fragment.
24  */
pressBacknull25 fun Fragment.pressBack() {
26     val wasBackExecuted = findNavController().popBackStack()
27     if (!wasBackExecuted) {
28         activity?.let { it.finish() }
29     }
30 }