diff options
Diffstat (limited to 'ui/src/main/java/com/wireguard/android/activity/MainActivity.kt')
| -rw-r--r-- | ui/src/main/java/com/wireguard/android/activity/MainActivity.kt | 38 |
1 files changed, 26 insertions, 12 deletions
diff --git a/ui/src/main/java/com/wireguard/android/activity/MainActivity.kt b/ui/src/main/java/com/wireguard/android/activity/MainActivity.kt index aac08e18..80c4868c 100644 --- a/ui/src/main/java/com/wireguard/android/activity/MainActivity.kt +++ b/ui/src/main/java/com/wireguard/android/activity/MainActivity.kt @@ -1,5 +1,5 @@ /* - * Copyright © 2017-2021 WireGuard LLC. All Rights Reserved. + * Copyright © 2017-2023 WireGuard LLC. All Rights Reserved. * SPDX-License-Identifier: Apache-2.0 */ package com.wireguard.android.activity @@ -9,6 +9,8 @@ import android.os.Bundle import android.view.Menu import android.view.MenuItem import android.view.View +import androidx.activity.OnBackPressedCallback +import androidx.activity.addCallback import androidx.appcompat.app.ActionBar import androidx.fragment.app.FragmentManager import androidx.fragment.app.FragmentTransaction @@ -26,27 +28,29 @@ import com.wireguard.android.model.ObservableTunnel class MainActivity : BaseActivity(), FragmentManager.OnBackStackChangedListener { private var actionBar: ActionBar? = null private var isTwoPaneLayout = false + private var backPressedCallback: OnBackPressedCallback? = null - override fun onBackPressed() { + private fun handleBackPressed() { val backStackEntries = supportFragmentManager.backStackEntryCount // If the two-pane layout does not have an editor open, going back should exit the app. if (isTwoPaneLayout && backStackEntries <= 1) { finish() return } - // Deselect the current tunnel on navigating back from the detail pane to the one-pane list. - if (!isTwoPaneLayout && backStackEntries == 1) { + + if (backStackEntries >= 1) supportFragmentManager.popBackStack() + + // Deselect the current tunnel on navigating back from the detail pane to the one-pane list. + if (backStackEntries == 1) selectedTunnel = null - return - } - super.onBackPressed() } override fun onBackStackChanged() { + val backStackEntries = supportFragmentManager.backStackEntryCount + backPressedCallback?.isEnabled = backStackEntries >= 1 if (actionBar == null) return // Do not show the home menu when the two-pane layout is at the detail view (see above). - val backStackEntries = supportFragmentManager.backStackEntryCount val minBackStackEntries = if (isTwoPaneLayout) 2 else 1 actionBar!!.setDisplayHomeAsUpEnabled(backStackEntries >= minBackStackEntries) } @@ -57,6 +61,7 @@ class MainActivity : BaseActivity(), FragmentManager.OnBackStackChangedListener actionBar = supportActionBar isTwoPaneLayout = findViewById<View?>(R.id.master_detail_wrapper) != null supportFragmentManager.addOnBackStackChangedListener(this) + backPressedCallback = onBackPressedDispatcher.addCallback(this) { handleBackPressed() } onBackStackChanged() } @@ -69,9 +74,10 @@ class MainActivity : BaseActivity(), FragmentManager.OnBackStackChangedListener return when (item.itemId) { android.R.id.home -> { // The back arrow in the action bar should act the same as the back button. - onBackPressed() + onBackPressedDispatcher.onBackPressed() true } + R.id.menu_action_edit -> { supportFragmentManager.commit { replace(R.id.detail_container, TunnelEditorFragment()) @@ -86,18 +92,25 @@ class MainActivity : BaseActivity(), FragmentManager.OnBackStackChangedListener startActivity(Intent(this, SettingsActivity::class.java)) true } + else -> super.onOptionsItemSelected(item) } } - override fun onSelectedTunnelChanged(oldTunnel: ObservableTunnel?, - newTunnel: ObservableTunnel?) { + override fun onSelectedTunnelChanged( + oldTunnel: ObservableTunnel?, + newTunnel: ObservableTunnel? + ): Boolean { val fragmentManager = supportFragmentManager + if (fragmentManager.isStateSaved) { + return false + } + val backStackEntries = fragmentManager.backStackEntryCount if (newTunnel == null) { // Clear everything off the back stack (all editors and detail fragments). fragmentManager.popBackStackImmediate(0, FragmentManager.POP_BACK_STACK_INCLUSIVE) - return + return true } if (backStackEntries == 2) { // Pop the editor off the back stack to reveal the detail fragment. Use the immediate @@ -111,5 +124,6 @@ class MainActivity : BaseActivity(), FragmentManager.OnBackStackChangedListener addToBackStack(null) } } + return true } } |