问题描述
我尝试通过在附加视图上设置 ViewCompat.setonApplyWindowInsetsListener
来处理插入,但未调用侦听器。
我很困惑,因为当我将 insets 侦听器应用于 decorView
时,它起作用了:
ViewCompat.setonApplyWindowInsetsListener(window.decorView) { v,insets ->
Toast.makeText(this,"INSETS HANDLED",Toast.LENGTH_LONG).show()
insets
}
但是当我将 insets 监听器应用于活动根视图时(我在同一个地方这样做),它不起作用:
ViewCompat.setonApplyWindowInsetsListener(main_root) { v,Toast.LENGTH_LONG).show()
insets
}
我有一个活动应用程序,我在调用 onCreate()
方法时设置了这两个侦听器。
我知道我可以从第一个示例中获取插入并缓存它们,但现在我需要第二个代码工作,因为我需要这个库工作:
https://github.com/chrisbanes/insetter
它有这样的api:
Insetter.builder()
.applySystemWindowInsetsToPadding(Side.LEFT)
.applyToView(main_bottom_nav)
它提供了将插图应用到您的视图的简单方法。但是没有用。
我调试它,我看到在引擎盖下这个库设置了监听器,就像我在第二个代码示例中尝试做的那样,所以当我知道我的监听器没有触发的原因时,我想我可以制作这个库工作。
我的想法是:
我不太明白发生了什么。对我来说,decorView 有插图很奇怪,但活动根没有。从逻辑上讲,只有当装饰视图和活动视图之间的某个人处理和使用插入时才有可能,但这听起来很奇怪:活动根视图必须了解插入。
我试图做的事情(见代码),但没有帮助:
- 从 ConstraintLayout ro Frame/Linear/RelativeLayout 更改根 ViewGroup。
- 向活动根视图组添加/删除
fitsSystemWindows
属性。事实上,我打算完全删除插图以制作全屏应用程序,所以我认为我不需要启用此标志。 - 更改活动的 windowSoftInputMode:现在是 adjustResize。
- 在应用侦听器之前和之后在目标视图上调用
requestApplyInsets()
。 - 将 androidx.core:core-ktx 和 androidx.activity:activity-ktx 降级为稳定版本。
代码:
activity.xml: https://github.com/KirstenLy/AdviceCollector/blob/master/app/src/main/res/layout/activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/main_root"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@color/color_main_content">
<ImageView
android:id="@+id/main_icon"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/wise"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<com.google.android.material.bottomnavigation.BottomNavigationView
android:id="@+id/main_bottom_nav"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:background="@color/color_main_content"
android:elevation="@dimen/elevation_4"
android:translationZ="@dimen/elevation_4"
android:visibility="gone"
app:labelVisibilityMode="unlabeled"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:menu="@menu/bottom_navigation_menu" />
<!-- Helper view to show snackBar: need because of transparent navigation bar -->
<View
android:id="@+id/main_snackbar_anchor"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent" />
<!-- No internet error section -->
<ImageView
android:id="@+id/main_error_internet_icon"
android:layout_width="@dimen/image_size_96"
android:layout_height="@dimen/image_size_96"
app:layout_constraintBottom_toTopOf="@+id/main_error_internet_text"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_chainStyle="packed"
app:srcCompat="@drawable/ic_wifi" />
<TextView
android:id="@+id/main_error_internet_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:ellipsize="end"
android:gravity="center"
android:lines="3"
android:padding="@dimen/padding_16"
android:textAlignment="center"
app:layout_constraintBottom_toTopOf="@+id/main_error_internet_retry_button"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/main_error_internet_icon"
tools:text="@string/main_activity_error_loading" />
<com.google.android.material.button.MaterialButton
android:id="@+id/main_error_internet_retry_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:backgroundTint="@color/dark_blue"
android:padding="@dimen/padding_16"
android:text="@string/default_retry"
app:icon="@drawable/ic_autorenew"
app:iconGravity="textEnd"
app:iconPadding="@dimen/padding_4"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/main_error_internet_text" />
<androidx.constraintlayout.widget.Group
android:id="@+id/main_error_group"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
app:constraint_referenced_ids="main_error_internet_icon,main_error_internet_retry_button,main_error_internet_text" />
<FrameLayout
android:id="@+id/main_container"
android:layout_width="0dp"
android:layout_height="0dp"
app:layout_constraintBottom_toTopOf="@+id/main_bottom_nav"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>
MainActivity.kt: https://github.com/KirstenLy/AdviceCollector/blob/master/app/src/main/java/com/kirstenly/advice_collector/ui/activity_main/MainActivity.kt
package com.kirstenly.advice_collector.ui.activity_main
import android.os.Bundle
import android.widget.Toast
import androidx.core.view.ViewCompat
import androidx.core.view.isGone
import androidx.core.view.isVisible
import com.google.android.play.core.review.ReviewManagerFactory
import com.kirstenly.advice_collector.R
import com.kirstenly.advice_collector.Screens
import com.kirstenly.advice_collector.contracts.NavigationEventConsumer
import com.kirstenly.advice_collector.other.helpers.DayNightThemeHelper
import com.kirstenly.advice_collector.other.helpers.InsetHelper
import com.kirstenly.advice_collector.ui.activity_main.router.MainActivityRouter
import com.kirstenly.sdk.extensions.*
import com.kirstenly.sdk.other.navigation.BaseScreen
import dagger.android.support.DaggerAppCompatActivity
import kotlinx.android.synthetic.main.activity_main.*
import javax.inject.Inject
/** Host activity for application */
class MainActivity : DaggerAppCompatActivity(R.layout.activity_main),NavigationEventConsumer {
@Inject lateinit var router: MainActivityRouter
@Inject lateinit var viewmodel: MainActivityviewmodel
@Inject lateinit var insetHelper: InsetHelper
@Inject lateinit var dayNightThemeHelper: DayNightThemeHelper
override fun onNavigationEvent(screen: BaseScreen) {
router.navigateto(screen)
}
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setTheme(R.style.AppTheme)
initViews()
initObservers()
}
private fun initViews() {
ViewCompat.setonApplyWindowInsetsListener(window.decorView){ v,insets ->
Toast.makeText(this,Toast.LENGTH_LONG).show()
insets
}
// main_bottom_nav.applySystemWindowInsetsToMargin(bottom = true,top = true,left = true,consume = true)
// root_root.requestApplyInsetsWhenAttached()
// Insetter.builder()
// .applySystemWindowInsetsToPadding(Side.LEFT)
// .applyToView(main_bottom_nav)
//
// setwindowTransparency { statusBarSize,navigationBarSize ->
// insetHelper.topInset = statusBarSize
// insetHelper.bottomInset = navigationBarSize
// main_bottom_nav.updatePaddingFromPx(bottom = navigationBarSize)
// main_snackbar_anchor.layoutParams.height = navigationBarSize
// }
with(main_bottom_nav) {
setonNavigationItemSelectedListener {
when (it.itemId) {
R.id.bottom_home -> router.navigateto(Screens.HomeScreen)
R.id.bottom_favorite -> router.navigateto(Screens.FavoriteAdvicesScreen)
R.id.bottom_login -> router.navigatetoLoginorUserAdvices()
R.id.bottom_new_advice -> router.navigatetoNewAdvice()
R.id.bottom_day_night -> dayNightThemeHelper.setDayOrNightMode()
}
true
}
removeItemIconTintList()
setIconOnItem(R.id.bottom_day_night,dayNightThemeHelper.getDayOrNightModeIcon())
}
main_error_internet_retry_button.setonClickListener {
viewmodel.retryInternetConnection()
}
}
private fun initObservers() {
viewmodel.errorStateLiveData.observe(this,{ errorState ->
main_error_group.isVisible = errorState != ErrorState.NONE
main_icon.isVisible = errorState == ErrorState.NONE
main_error_internet_retry_button.isEnabled = errorState != ErrorState.retrying
val errorText = when (errorState) {
ErrorState.retrying -> getString(R.string.main_activity_error_retrying)
ErrorState.NO_INTERNET_ERROR -> getString(R.string.main_activity_error_loading)
ErrorState.UPDATE_DATA_ERROR -> getString(R.string.main_activity_error_update)
ErrorState.NONE -> null
}
main_error_internet_text.text = errorText
})
viewmodel.navigationEventLiveData.observe(this,router::navigateto)
viewmodel.isDataPreparedLiveData.observe(this,{ isDataPrepared ->
main_icon.isGone = isDataPrepared
})
}
// Todo: Поддержать inAppReview,будет возможно только после залива в GP
private fun initAppReview() {
val manager = ReviewManagerFactory.create(this)
val request = manager.requestReviewFlow()
request.addOnCompleteListener { request ->
if (request.isSuccessful) {
// We got the ReviewInfo object
val reviewInfo = request.result
val flow = manager.launchReviewFlow(this,reviewInfo)
flow.addOnCompleteListener { a ->
a.isComplete
// The flow has finished. The API does not indicate whether the user
// reviewed or not,or even whether the review dialog was shown. Thus,no
// matter the result,we continue our app flow.
}
} else {
// There was some problem,continue regardless of the result.
}
}
}
override fun onBackpressed() {
if (!router.handleOnBackpressedByCurrentFragment()) {
if (!supportFragmentManager.isBackStackEmpty()) {
super.onBackpressed()
} else {
finish()
}
}
}
}
解决方法
好的,当我添加时修复:
真实
在我的应用程序主题中。
如果我理解正确的话,如果没有这个属性,decorView 会消耗 insets。
¯_(ツ)_/¯