Android RecyclerView#onMeasure()未通过调用setMeasuredDimension()设置测量的维度
我有一个带有Android RecyclerView#onMeasure()未通过调用setMeasuredDimension()设置测量的维度,android,android-recyclerview,fragment,dimension,onmeasure,Android,Android Recyclerview,Fragment,Dimension,Onmeasure,我有一个带有RecyclerView的片段,它附加了LinearSnapHelper,以便在中心获得视图,并通过缩放其大小将其高亮显示 它工作得很好,但当在背压时从backbackback弹出这个片段时,它抛出以下异常 E/UncaughtException: java.lang.IllegalStateException: View with id 2131689939: android.support.v7.widget.RecyclerView#onMeasure() did not se
RecyclerView
的片段,它附加了LinearSnapHelper
,以便在中心获得视图,并通过缩放其大小将其高亮显示
它工作得很好,但当在背压时从backbackback弹出这个片段时,它抛出以下异常
E/UncaughtException: java.lang.IllegalStateException: View with id 2131689939: android.support.v7.widget.RecyclerView#onMeasure() did not set the measured dimension by calling setMeasuredDimension()
at android.view.View.measure(View.java:19746)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6120)
at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1464)
at android.widget.LinearLayout.measureHorizontal(LinearLayout.java:1117)
at android.widget.LinearLayout.onMeasure(LinearLayout.java:642)
at android.view.View.measure(View.java:19734)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6120)
at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1464)
at android.widget.LinearLayout.measureVertical(LinearLayout.java:758)
at android.widget.LinearLayout.onMeasure(LinearLayout.java:640)
at android.view.View.measure(View.java:19734)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6120)
at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1464)
at android.widget.LinearLayout.measureVertical(LinearLayout.java:758)
at android.widget.LinearLayout.onMeasure(LinearLayout.java:640)
at android.view.View.measure(View.java:19734)
at android.support.v4.widget.NestedScrollView.measureChildWithMargins(NestedScrollView.java:1420)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:185)
at android.support.v4.widget.NestedScrollView.onMeasure(NestedScrollView.java:482)
at android.view.View.measure(View.java:19734)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6120)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:185)
at android.view.View.measure(View.java:19734)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6120)
at android.support.design.widget.CoordinatorLayout.onMeasureChild(CoordinatorLayout.java:714)
at android.support.design.widget.HeaderScrollingViewBehavior.onMeasureChild(HeaderScrollingViewBehavior.java:90)
at android.support.design.widget.AppBarLayout$ScrollingViewBehavior.onMeasureChild(AppBarLayout.java:1391)
at android.support.design.widget.CoordinatorLayout.onMeasure(CoordinatorLayout.java:784)
at android.view.View.measure(View.java:19734)
at android.support.v4.widget.DrawerLayout.onMeasure(DrawerLayout.java:1081)
at android.view.View.measure(View.java:19734)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6120)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:185)
at android.support.v7.widget.ContentFrameLayout.onMeasure(ContentFrameLayout.java:139)
at android.view.View.measure(View.java:19734)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6120)
at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1464)
at android.widget.LinearLayout.measureVertical(LinearLayout.java:758)
at android.widget.LinearLayout.onMeasure(LinearLayout.java:640)
at android.view.View.measure(View.java:19734)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6120)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:185)
at android.view.View.measure(View.java:19734)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6120)
at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1464)
at android.widget.LinearLayout.measureVertical(LinearLayout.java:758)
at android.widget.LinearLayout.onMeasure(LinearLayout.java:640)
at android.view.View.measure(View.java:19734)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:6120)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:185)
at com.android.internal.policy.DecorView.onMeasure(DecorView.java:687)
at android.view.View.measure(View.java:19734)
at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:2271)
at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1358)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1607)
RecyclerView的相关代码如下所示
我认为这是因为我们正在调用RecyclerView.setLayoutManager()
,而LayoutManager
已经有了RecyclerView
public void setLayoutManager(LayoutManager layout) {
...
if (layout != null) {
if (layout.mRecyclerView != null) {
throw new IllegalArgumentException("LayoutManager " + layout
+ " is already attached to a RecyclerView:"
+ layout.mRecyclerView.exceptionLabel());
}
mLayout.setRecyclerView(this);
if (mIsAttached) {
mLayout.dispatchAttachedToWindow(this);
}
}
...
}
但出于我不理解的原因,Logcat中打印的异常是
UncaughtException: java.lang.IllegalStateException: View with id 2131231433: android.support.v7.widget.RecyclerView#onMeasure() did not set the measured dimension by calling setMeasuredDimension()`
也许有什么东西捕捉到了这个异常并抛出了这个异常(没有原因)?我通过调用mRecyclerView.setLayoutManager(newlinearlayoutmanager(this)),解决了这个问题代码>成功了,我希望它能帮助别人。好的,我刚刚修复了@Kevin Robatel提到的问题。
在我的例子中,我只在onCreate()中初始化布局管理器一次,然后在onViewCreated()或onResume()中使用它(即,在多个位置)
因此,修复方法是“每次需要设置布局管理器时重新初始化布局管理器”
这对我来说也是一种减轻,干杯 在我的例子中,我有多个recycler视图,但我只创建了一次linearlayout manager
我为每个recycler视图创建了linearlayout manager,它成功了
谢谢。你找到什么了吗?找到了。布局管理器需要重新初始化。谢谢