Java appcompat-v7:23.0.0中Snackbar触摸或滑动时出现NullPointerException
我在滑动Snackbar时发现一个错误,如下面的代码 1.使用appcompat-v7:23.0.0在适当的上下文中将此代码添加到应用程序:Java appcompat-v7:23.0.0中Snackbar触摸或滑动时出现NullPointerException,java,android,material-design,snackbar,Java,Android,Material Design,Snackbar,我在滑动Snackbar时发现一个错误,如下面的代码 1.使用appcompat-v7:23.0.0在适当的上下文中将此代码添加到应用程序: Snackbar .make(rootLayout, R.string.snackbar_text, Snackbar.LENGTH_LONG) .show(); 2.视图在AppBarLayout中必须有如下工具栏: <android.support.design.widget.CoordinatorLayout andr
Snackbar
.make(rootLayout, R.string.snackbar_text, Snackbar.LENGTH_LONG)
.show();
2.视图在AppBarLayout中必须有如下工具栏:
<android.support.design.widget.CoordinatorLayout
android:id="@+id/rootLayout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.design.widget.AppBarLayout
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="?attr/actionBarSize"
android:background="?attr/colorPrimary" />
</android.support.design.widget.AppBarLayout>
</android.support.design.widget.CoordinatorLayout>
在coordinatorlayout中没有嵌入其他视图。因此,snackbar没有任何其他视图可供协调。问题已解决,已在23.0.1版中修复。实际上,我有。你可以在屏幕上看到代码。当滑动Snackbar时,演示将崩溃
java.lang.NullPointerException
at android.support.design.widget.AppBarLayout$Behavior.onInterceptTouchEvent(AppBarLayout.java:729)
at android.support.design.widget.AppBarLayout$Behavior.onInterceptTouchEvent(AppBarLayout.java:629)
at android.support.design.widget.CoordinatorLayout.performIntercept(CoordinatorLayout.java:357)
at android.support.design.widget.CoordinatorLayout.onInterceptTouchEvent(CoordinatorLayout.java:409)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1859)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2216)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1959)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2216)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1959)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2216)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1959)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2216)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1959)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2216)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1959)
at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:2086)
at com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1533)
at android.app.Activity.dispatchTouchEvent(Activity.java:2458)
at android.support.v7.internal.view.WindowCallbackWrapper.dispatchTouchEvent(WindowCallbackWrapper.java:60)
at android.support.v7.internal.view.WindowCallbackWrapper.dispatchTouchEvent(WindowCallbackWrapper.java:60)