android - ViewCompat.setOnApplyWindowInsetsListener 在将视图视为属性时不生效

问题描述

我尝试通过设置ViewCompat.setOnApplyWindowInsetsListener附加视图来处理插入，但不调用侦听器。

我很困惑，因为当我将 insets listener 应用于时decorView，它可以工作：

   ViewCompat.setOnApplyWindowInsetsListener(window.decorView) { v, insets  ->
        Toast.makeText(this, "INSETS HANDLED", Toast.LENGTH_LONG).show()
        insets
    }

但是，当我将 insets 侦听器应用于活动根视图（我在同一个地方执行此操作）时，它不起作用：

ViewCompat.setOnApplyWindowInsetsListener(main_root) { v, insets  ->
        Toast.makeText(this, "INSETS HANDLED", Toast.LENGTH_LONG).show()
        insets
    }

我有一个活动应用程序，并且在onCreate()调用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图并缓存它们，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/insette

它有如下 api：

    Insetter.builder()
        .applySystemWindowInsetsToPadding(Side.LEFT)
        .applyToView(main_bottom_nav)

它提供了将插图应用到视图的简单方法。但它没有用。

我调试它，我看到这个库在后台设置了监听器，就像我在第二个代码示例中尝试做的那样，所以当我得到我的监听器没有被触发的原因时，我想我可以让这个库工作。

我的想法是：

我不明白发生了什么。对我来说很奇怪 decorView 有插图，但活动根没有。从逻辑上讲，只有在 decorView 和活动视图之间的人处理和消费 insets 时才有可能，但这听起来很奇怪：活动根视图必须知道 insets。

我试图做的（见代码），它没有帮助：

从 ConstraintLayout ro Frame/Linear/RelativeLayout 更改根 ViewGroup。
向活动根 ViewGroup添加/删除fitsSystemWindows属性。事实上，我计划完全删除插图来制作全屏应用程序，所以我认为我不需要启用这个标志。
更改活动的windowSoftInputMode：现在是adjustResize。
requestApplyInsets()在应用侦听器之前和之后调用目标视图。
将 androidx.core:core-ktx 和 androidx.activity:activity-ktx 降级到稳定版本。

代码：

活动.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, "INSETS HANDLED", 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()
            }
        }
    }
}

标签： androidkotlinandroid-view

android - ViewCompat.setOnApplyWindowInsetsListener 在将视图视为属性时不生效

问题描述

解决方案

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