工具栏不可见“无法使用CoordinatorLayout制作装饰工具栏”

Question

因此，该应用程序在android 7.0中运行良好，但在android 4.4 kitkat中工具栏不可见。 如果用户单击应该包含汉堡包图标的空白区域，则导航抽屉仍将打开，工具栏仍然存在。

活动xml文件中包含渲染错误，该文件包含错误所指向的app_bar_layout xml文件。

这是XML渲染问题中的错误：

//Exception raised during rendering: Can't make a decor toolbar out of CoordinatorLayout

java.lang.IllegalStateException: Can't make a decor toolbar out of CoordinatorLayout
at android.support.v7.widget.ActionBarOverlayLayout.getDecorToolbar(ActionBarOverlayLayout.java:543)
at android.support.v7.widget.ActionBarOverlayLayout.pullChildren(ActionBarOverlayLayout.java:532)
at android.support.v7.widget.ActionBarOverlayLayout.fitSystemWindows(ActionBarOverlayLayout.java:282)
at android.view.View.onApplyWindowInsets(View.java:7755)
at android.view.View.dispatchApplyWindowInsets(View.java:7809)
at android.view.ViewGroup.dispatchApplyWindowInsets(ViewGroup.java:6435)
at android.view.ViewGroup.dispatchApplyWindowInsets(ViewGroup.java:6439)
at android.view.ViewRootImpl.dispatchApplyInsets(ViewRootImpl.java:1422)
at android.view.ViewRootImpl_Accessor.dispatchApplyInsets(ViewRootImpl_Accessor.java:24)
at com.android.layoutlib.bridge.impl.Layout.requestFitSystemWindows(Layout.java:315)
at android.view.View.requestFitSystemWindows(View.java:7945)
at android.view.View.requestFitSystemWindows(View.java:7945)
at android.view.View.requestFitSystemWindows(View.java:7945)
at android.view.View.requestFitSystemWindows(View.java:7945)
at android.view.View.requestApplyInsets(View.java:7953)
at android.support.v4.view.ViewCompatLollipop.requestApplyInsets(ViewCompatLollipop.java:49)
at android.support.v4.view.ViewCompat$LollipopViewCompatImpl.requestApplyInsets(ViewCompat.java:1630)
at android.support.v4.view.ViewCompat.requestApplyInsets(ViewCompat.java:2970)
at android.support.design.widget.CoordinatorLayout.onAttachedToWindow(CoordinatorLayout.java:246)
at android.view.View.dispatchAttachedToWindow(View.java:15395)
at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:2953)
at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:2960)
at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:2960)
at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:2960)
at android.view.ViewGroup.dispatchAttachedToWindow(ViewGroup.java:2960)
at android.view.AttachInfo_Accessor.setAttachInfo(AttachInfo_Accessor.java:42)
at com.android.layoutlib.bridge.impl.RenderSessionImpl.inflate(RenderSessionImpl.java:333)
at com.android.layoutlib.bridge.Bridge.createSession(Bridge.java:429)
at com.android.ide.common.rendering.LayoutLibrary.createSession(LayoutLibrary.java:368)
at com.android.tools.idea.rendering.RenderTask$2.compute(RenderTask.java:567)
at com.android.tools.idea.rendering.RenderTask$2.compute(RenderTask.java:549)
at com.intellij.openapi.application.impl.ApplicationImpl.runReadAction(ApplicationImpl.java:863)
at com.android.tools.idea.rendering.RenderTask.createRenderSession(RenderTask.java:549)
at com.android.tools.idea.rendering.RenderTask.lambda$inflate$1(RenderTask.java:680)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)

我尝试将坐标布局更改为其他布局，但是没有用。

Answer 1

当包含如下所示的工具栏布局时，您可能具有android:id属性：

<include
    android:id="@+id/toolbar_layout"
    layout="@layout/toolbar" />

我刚刚删除了ID以获取以下代码：

<include
    layout="@layout/toolbar" />

然后，我强制刷新布局。 你可以在这里做。

它为我工作。