我的MainActivity有一个RecyclerView和一个BottomNavigationView。 RecyclerView中的项目是CardViews。
当我单击被BottomNavigationView遮住一半的项目时(-称为 BNV ),它会“弹出”在BNV上,然后向上滑动以成为LaunchedActivity中的标题。
从LaunchedActivity中退出时,它会滑过BNV,然后“快速”回到原位:
我该如何:
我尝试使用BNV的高度,尝试将sharedElementEnterTransition设置为Fade(),尝试使用BottomNavigation指定excludeTarget;我似乎无法使事情如我所愿。
这是MainActivity的布局:
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<android.support.v7.widget.RecyclerView
android:id="@+id/rv"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_marginStart="8dp"
android:layout_marginEnd="8dp"
android:layout_marginTop="8dp"
android:layout_marginBottom="8dp"
app:layout_constraintBottom_toTopOf="@+id/bottomNavigationView"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintStart_toStartOf="parent"
/>
<android.support.design.widget.BottomNavigationView
android:id="@+id/bottomNavigationView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:menu="@menu/navigation"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
/>
</android.support.constraint.ConstraintLayout>
Activity_launched在这里:
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout
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:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".LaunchedActivity">
<android.support.design.widget.AppBarLayout
android:layout_height="wrap_content"
android:layout_width="match_parent"
android:theme="@style/AppTheme.AppBarOverlay">
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
app:popupTheme="@style/AppTheme.PopupOverlay"/>
</android.support.design.widget.AppBarLayout>
<include layout="@layout/content_launched"/>
<android.support.design.widget.FloatingActionButton
android:id="@+id/fab"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom|end"
android:layout_margin="@dimen/fab_margin"
app:srcCompat="@android:drawable/ic_dialog_email"/>
</android.support.design.widget.CoordinatorLayout>
并且content_launched:
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="@string/appbar_scrolling_view_behavior"
tools:showIn="@layout/activity_launched"
tools:context=".LaunchedActivity">
<LinearLayout
android:id="@+id/launched_header"
android:transitionName="header" android:layout_width="0dp" android:layout_height="wrap_content"
app:layout_constraintTop_toTopOf="parent" app:layout_constraintStart_toStartOf="parent"
android:orientation="vertical" app:layout_constraintEnd_toEndOf="parent"
android:background="@android:color/holo_blue_bright"
android:layout_marginEnd="8dp">
<TextView
android:text="TextView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:id="@+id/launched_title"/>
<TextView
android:text="TextView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:id="@+id/launched_text"/>
</LinearLayout>
</android.support.constraint.ConstraintLayout>
RecyclerView中的项目调用MainActivity.onItemClicked:
fun onItemClicked(view: View, item: Item) {
val intent = Intent(applicationContext, LaunchedActivity::class.java)
intent.putExtra("ITEM", item)
val options = ActivityOptions.makeSceneTransitionAnimation(
this,
android.util.Pair<View, String>(view, "header")
)
startActivity(intent, options.toBundle())
}
这是回收站中的阵列:
data class Item(val title: String, val text: String): Serializable
val itemList = listOf(Item("One", "1"), Item("Two", "2"),
Item("Three", "3"), Item("Four", "4"), Item("Five", "5"))
最后,这是从LaunchedActivity.onCreate:
with(window) {
requestFeature(Window.FEATURE_CONTENT_TRANSITIONS)
requestFeature(Window.FEATURE_ACTIVITY_TRANSITIONS)
sharedElementEnterTransition = AutoTransition()
sharedElementExitTransition = AutoTransition()
}
LaunchedActivity.onCreate将项目从意图中拉出,并设置launchdtitle和launchd_text。
答案 0 :(得分:2)
添加recyclerView项目的CardView
app:cardMaxElevation="8dp"
并提供您的BNV
app:elevation="16dp"
尝试一下,尝试使用更高的海拔差异,因为点击的Cardview的海拔高于实际海拔
答案 1 :(得分:1)
您听说过clipToPadding
可以在底视图中添加填充,以免妨碍底视图。
因此,请尝试设置clipToPadding = "true"
并检查其是否可以解决。
Android what does the clipToPadding Attribute do?
您的布局活动文件还将<RecyclerView>
设置为0dp。
在外部使用<RelativeLayout>
,并在layout_above="@bnv"
中设置<RecyclerView>
,与此类似。
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="@+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent">
<FrameLayout
android:id="@+id/content"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_above="@+id/navigation1"
android:layout_weight="1">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<com.nxtoff.plzcome.commonutills.BottomNavigationViewPager
android:id="@+id/viewpager"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_behavior="@string/appbar_scrolling_view_behavior" />
<View
android:layout_width="match_parent"
android:layout_height="0.5dp"
android:layout_below="@+id/viewpager"
android:background="#999999" />
</RelativeLayout>
</FrameLayout>
<com.google.android.material.bottomnavigation.BottomNavigationView
android:id="@+id/navigation1"
android:layout_width="match_parent"
android:layout_height="56dp"
android:layout_alignParentBottom="true"
android:layout_gravity="bottom"
android:background="?android:attr/windowBackground"
app:itemBackground="@android:color/white"
app:itemIconTint="@drawable/nav_item_colors"
app:itemTextColor="@drawable/nav_item_colors"
app:menu="@menu/navigation" />
<com.google.android.material.floatingactionbutton.FloatingActionButton
android:id="@+id/xfb_fab"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:layout_gravity="bottom|center_horizontal"
android:layout_margin="22dp"
android:layout_marginBottom="30dp"
android:background="@color/colorloader"
android:clickable="true"
android:src="@drawable/plus_fab"
android:tint="@color/colorviolet"
app:backgroundTint="@color/colorloader"
app:elevation="8dp"
app:fabSize="normal"
/>
</RelativeLayout>
编辑1:
尝试此代码,让我知道。
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<androidx.recyclerview.widget.RecyclerView
android:id="@+id/rv"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginStart="8dp"
android:layout_marginEnd="8dp"
android:layout_marginTop="8dp"
android:layout_above="@id/bottomNavigationView"
android:layout_alignParentTop="true"
android:layout_marginBottom="8dp"
/>
<com.google.android.material.bottomnavigation.BottomNavigationView
android:id="@+id/bottomNavigationView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:menu="@menu/navigation"
android:layout_alignParentBottom="true"
/>
</RelativeLayout>