Android 视图不能定位到父坐标系布局
这不是我的应用程序,这是北欧的应用程序,它将其源代码放在github上,我正在尝试在我的机器上运行soutce。但我一直有这样的错误:Android 视图不能定位到父坐标系布局,android,user-interface,android-support-library,floating,android-support-design,Android,User Interface,Android Support Library,Floating,Android Support Design,这不是我的应用程序,这是北欧的应用程序,它将其源代码放在github上,我正在尝试在我的机器上运行soutce。但我一直有这样的错误: 03-07 07:12:13.641 12622-12622/com.noxel.apppaneladmintry2 E/AndroidRuntime﹕ FATAL EXCEPTION: main Process: com.noxel.apppaneladmintry2, PID: 12622 java.lang.IllegalStateException:
03-07 07:12:13.641 12622-12622/com.noxel.apppaneladmintry2 E/AndroidRuntime﹕ FATAL EXCEPTION: main
Process: com.noxel.apppaneladmintry2, PID: 12622
java.lang.IllegalStateException: View can not be anchored to the the parent CoordinatorLayout
at android.support.design.widget.CoordinatorLayout$LayoutParams.resolveAnchorView(CoordinatorLayout.java:2522)
at android.support.design.widget.CoordinatorLayout$LayoutParams.findAnchorView(CoordinatorLayout.java:2491)
at android.support.design.widget.CoordinatorLayout.prepareChildren(CoordinatorLayout.java:619)
at android.support.design.widget.CoordinatorLayout.onMeasure(CoordinatorLayout.java:670)
at android.view.View.measure(View.java:17442)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5463)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:430)
at android.support.v7.widget.ContentFrameLayout.onMeasure(ContentFrameLayout.java:135)
at android.view.View.measure(View.java:17442)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5463)
at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1436)
at android.widget.LinearLayout.measureVertical(LinearLayout.java:722)
at android.widget.LinearLayout.onMeasure(LinearLayout.java:613)
at android.view.View.measure(View.java:17442)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5463)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:430)
at android.view.View.measure(View.java:17442)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5463)
at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1436)
at android.widget.LinearLayout.measureVertical(LinearLayout.java:722)
at android.widget.LinearLayout.onMeasure(LinearLayout.java:613)
at android.view.View.measure(View.java:17442)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5463)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:430)
at com.android.internal.policy.impl.PhoneWindow$DecorView.onMeasure(PhoneWindow.java:2560)
at android.view.View.measure(View.java:17442)
at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:2001)
at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1166)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1372)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1054)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5779)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:767)
at android.view.Choreographer.doCallbacks(Choreographer.java:580)
at android.view.Choreographer.doFrame(Choreographer.java:550)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:753)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5257)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:921)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:716)
这是我的主要活动的布局:
<?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"
android:id="@+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.design.widget.AppBarLayout
style="@style/HeaderBar"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?actionBarSize"
android:theme="@style/ActionBarThemeOverlay"
app:popupTheme="@style/ActionBarPopupThemeOverlay"
app:titleTextAppearance="@style/ActionBar.TitleText"/>
<android.support.design.widget.TabLayout
android:id="@+id/sliding_tabs"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:tabSelectedTextColor="@color/tabSelectedTextColor"
app:tabTextColor="@color/tabTextColor"
app:tabIndicatorColor="@color/tabIndicatorColor"
app:tabGravity="fill"
app:tabMode="fixed"/>
</android.support.design.widget.AppBarLayout>
<android.support.v4.view.ViewPager
android:id="@+id/view_pager"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="@string/appbar_scrolling_view_behavior" />
<android.support.design.widget.FloatingActionButton
android:id="@+id/fab_add"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="@dimen/fab_margin"
android:src="@drawable/fab_ic_add"
app:backgroundTint="@color/fab_normal"
app:layout_anchor="@+id/container"
app:layout_anchorGravity="bottom|right|end"
app:elevation="4dp"/>
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/background_title"
android:layout_gravity="bottom|center"
android:layout_marginBottom="6dp"/>
</android.support.design.widget.CoordinatorLayout>
这是我启动屏幕的布局:
<merge xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".SplashscreenActivity" >
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginBottom="70dp"
android:scaleType="center"
android:src="@drawable/nordic_logo" />
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/background_title"
android:layout_gravity="bottom|center"
android:layout_marginBottom="6dp"/>
有人能告诉我如何解决这个问题吗?这是从支持设计库v.23.2.0开始的
compile 'com.android.support:design:23.2.0'
我知道这是从v23.2.0开始的,因为我的应用程序在之前(v.23.1.2)运行良好,并且在更新后开始出现相同的故障
错误很简单:
其中一个视图定位到其父协调器布局。但是,从v.23.2.0开始,不再允许这样做
我认为错误在于你的工厂:
<android.support.design.widget.FloatingActionButton
android:id="@+id/fab_add"
...
app:layout_anchor="@+id/container"
... />
我相信id/container
是一个父级协调器布局
固定
正确的方法是更改布局锚定,并使用另一个视图作为锚定(父布局或固定在屏幕底部的任何其他视图)。更改应用程序:布局锚定,而不是使用协调器晶圆厂锚定的视图必须是协调布局的子视图 如果视图是布局,则晶圆厂不得位于布局内,否则“锚定重力”设置将不起作用。例如:
<android.support.design.widget.CoordinatorLayout
android:id="@+id/content_layout"
android:layout_width="match_parent"
android:layout_height="match_parent">
.
.
.
<FrameLayout
android:id="@+id/attachment_layout"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<android.support.design.widget.FloatingActionButton
android:id="@+id/fab"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="@dimen/fab_margin_end"
android:layout_marginTop="@dimen/fab_margin_top"
android:scaleType="center"
android:src="@drawable/ic_action_save"
app:borderWidth="0dp"
app:elevation="@dimen/fab_elevation"
app:layout_anchor="@id/attachment_layout"
app:layout_anchorGravity="top|end"
app:rippleColor="@color/accent_highlight" />
</android.support.design.widget.CoordinatorLayout>
.
.
.
我的朋友还有另一种方法,我今天通过在Studio中使用设计选项卡学到了这一方法。我把我的晶圆厂拖到anchor找到了这个代码--
请注意,这是完美的工作,因为我正在使用折叠工具栏。我甚至尝试设置不同的宽度,效果很好
它还可以在任何版本的支持库中工作。我的是25.0.0
这是一个老问题,但我有最好的解决办法 使用android:layout_gravity=“bottom | end”(任何适合您的值) 注意android名称空间
该属性根据父视图布局定位晶圆厂。没有必要创建一个虚拟的FrameLayout来定位。所有其他人都很困惑,试试这个
<android.support.design.widget.CoordinatorLayout
android:id="@+id/coordinatorLayout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<FrameLayout
android:id="@+id/contentFrame"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
<android.support.design.widget.FloatingActionButton
android:id="@+id/fab_add_notes"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="@dimen/fab_margin"
android:src="@drawable/ic_add"
app:fabSize="normal"
app:layout_anchor="@id/contentFrame"
app:layout_anchorGravity="bottom|right|end"/>
</android.support.design.widget.CoordinatorLayout>
可以通过提供解释答案实现方式的代码来改进答案。它添加了一个名为attachment\u layout
的子布局,与fab
具有相同级别,因此fab
可以出于好奇而布局attachment\u layout
的锚,您是如何发现“固定到屏幕底部或顶部”部分的?我在CoordinatorLayout文档中找不到它,但这确实解决了我的问题!
<android.support.design.widget.FloatingActionButton
android:id="@+id/fab"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:layout_margin="@dimen/activity_horizontal_margin"
android:src="@drawable/ic_add"
android:layout_gravity="center_vertical|center_horizontal"
app:layout_anchor="@+id/appBar"
app:layout_anchorGravity="bottom|right" />
<android.support.design.widget.CoordinatorLayout
android:id="@+id/coordinatorLayout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<FrameLayout
android:id="@+id/contentFrame"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
<android.support.design.widget.FloatingActionButton
android:id="@+id/fab_add_notes"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="@dimen/fab_margin"
android:src="@drawable/ic_add"
app:fabSize="normal"
app:layout_anchor="@id/contentFrame"
app:layout_anchorGravity="bottom|right|end"/>
</android.support.design.widget.CoordinatorLayout>