| /* |
| * Copyright 2019 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.drawerlayout.widget |
| |
| import android.os.Build |
| import android.view.KeyEvent |
| import android.view.View |
| import androidx.drawerlayout.test.R |
| import androidx.test.espresso.Espresso |
| import androidx.test.espresso.action.ViewActions |
| import androidx.test.espresso.matcher.ViewMatchers |
| import androidx.test.ext.junit.rules.ActivityScenarioRule |
| import androidx.test.ext.junit.runners.AndroidJUnit4 |
| import androidx.test.filters.SmallTest |
| import androidx.testutils.PollingCheck |
| import androidx.testutils.withActivity |
| import org.junit.Assert |
| import org.junit.Ignore |
| import org.junit.Rule |
| import org.junit.Test |
| import org.junit.runner.RunWith |
| |
| @RunWith(AndroidJUnit4::class) |
| public class DrawerBackHandlingTest { |
| @get:Rule |
| public val activityScenarioRule = ActivityScenarioRule( |
| DrawerSingleStartActivity::class.java |
| ) |
| |
| @Ignore |
| @Test |
| @SmallTest |
| public fun testBackPress() { |
| val listener = ObservableDrawerListener() |
| val drawerLayout = activityScenarioRule.withActivity { |
| val drawerLayout = findViewById<DrawerLayout>(R.id.drawer) |
| drawerLayout.addDrawerListener(listener) |
| drawerLayout.open() |
| drawerLayout |
| } |
| |
| // Wait until the animation ends. We disable animations on test |
| // devices, but this is useful when running on a local device. |
| PollingCheck.waitFor { |
| listener.drawerOpenedCalled |
| } |
| listener.reset() |
| |
| // Ensure that back pressed dispatcher callback is registered on T+. |
| if (Build.VERSION.SDK_INT >= 33) { |
| Assert.assertTrue(drawerLayout.isBackInvokedCallbackRegistered) |
| } |
| |
| Espresso.onView(ViewMatchers.isRoot()).perform(ViewActions.pressKey(KeyEvent.KEYCODE_BACK)) |
| |
| PollingCheck.waitFor { |
| listener.drawerClosedCalled |
| } |
| listener.reset() |
| |
| Assert.assertNull(drawerLayout.findOpenDrawer()) |
| |
| // Ensure that back pressed dispatcher callback is unregistered on T+. |
| if (Build.VERSION.SDK_INT >= 33) { |
| Assert.assertFalse(drawerLayout.isBackInvokedCallbackRegistered) |
| } |
| } |
| |
| internal inner class ObservableDrawerListener : DrawerLayout.DrawerListener { |
| var drawerOpenedCalled = false |
| var drawerClosedCalled = false |
| |
| override fun onDrawerSlide(drawerView: View, slideOffset: Float) {} |
| |
| override fun onDrawerOpened(drawerView: View) { |
| drawerOpenedCalled = true |
| } |
| |
| override fun onDrawerClosed(drawerView: View) { |
| drawerClosedCalled = true |
| } |
| |
| override fun onDrawerStateChanged(newState: Int) {} |
| |
| fun reset() { |
| drawerOpenedCalled = false |
| drawerClosedCalled = false |
| } |
| } |
| } |
