| /* |
| * Copyright 2018 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package androidx.navigation.ui |
| |
| import androidx.customview.widget.Openable |
| import androidx.navigation.NavController |
| |
| /** |
| * Handles the Up button by delegating its behavior to the given [NavController]. |
| * |
| * This is equivalent to calling [NavController.navigateUp] if the [Openable] layout is null. |
| * |
| * @return True if the [NavController] was able to navigate up. |
| */ |
| public fun NavController.navigateUp(drawerLayout: Openable?): Boolean = |
| NavigationUI.navigateUp(this, AppBarConfiguration(graph, drawerLayout)) |
| |
| /** |
| * Handles the Up button by delegating its behavior to the given [NavController]. |
| * |
| * @return True if the [NavController] was able to navigate up. |
| */ |
| public fun NavController.navigateUp(appBarConfiguration: AppBarConfiguration): Boolean = |
| NavigationUI.navigateUp(this, appBarConfiguration) |
