app:layout_behavior 增加后报错，不加不出现效果
来源：10-9 沉浸式状态栏和渐变透明顶栏解决方案和封装
悟空工作室
2018-08-28
报错日志
2回答
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layout_behavior是通过反射去寻找类的，至少目前本质上是这样，报错信息显示的是没有找到这个对应的类，所以喽，你得看看是不是把Behavior完整的类名写对了，是完整的类名，包括包名的那种
042018-08-30 -
悟空工作室
提问者
2018-08-28
08-28 23:44:09.426 12340-12340/com.wukongwork.ec E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.wukongwork.ec, PID: 12340
java.lang.NoClassDefFoundError: android.widget.Toolbar
at com.wukongwork.ec.main.index.TranslucentBehavior.layoutDependsOn(TranslucentBehavior.java:13)
at android.support.design.widget.CoordinatorLayout$LayoutParams.dependsOn(CoordinatorLayout.java:3009)
at android.support.design.widget.CoordinatorLayout.prepareChildren(CoordinatorLayout.java:679)
at android.support.design.widget.CoordinatorLayout.onMeasure(CoordinatorLayout.java:739)
at android.view.View.measure(View.java:16879)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5406)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:332)
at android.support.v7.widget.ContentFrameLayout.onMeasure(ContentFrameLayout.java:143)
at android.view.View.measure(View.java:16879)
at android.widget.RelativeLayout.measureChildHorizontal(RelativeLayout.java:818)
at android.widget.RelativeLayout.onMeasure(RelativeLayout.java:495)
at android.view.View.measure(View.java:16879)
at android.support.constraint.ConstraintLayout.internalMeasureChildren(ConstraintLayout.java:1212)
at android.support.constraint.ConstraintLayout.onMeasure(ConstraintLayout.java:1552)
at android.view.View.measure(View.java:16879)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5406)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:332)
at android.support.v7.widget.ContentFrameLayout.onMeasure(ContentFrameLayout.java:143)
at android.view.View.measure(View.java:16879)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5406)
at android.support.v7.widget.ActionBarOverlayLayout.onMeasure(ActionBarOverlayLayout.java:401)
at android.view.View.measure(View.java:16879)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5406)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:332)
at android.view.View.measure(View.java:16879)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5406)
at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1616)
at android.widget.LinearLayout.measureVertical(LinearLayout.java:729)
at android.widget.LinearLayout.onMeasure(LinearLayout.java:601)
at android.view.View.measure(View.java:16879)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5406)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:332)
at com.android.internal.policy.impl.PhoneWindow$DecorView.onMeasure(PhoneWindow.java:2369)
at android.view.View.measure(View.java:16879)
at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:2439)
at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1385)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1655)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1262)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6400)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:788)
at android.view.Choreographer.doCallbacks(Choreographer.java:591)
at android.view.Choreographer.doFrame(Choreographer.java:560)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:774)
at android.os.Handler.handleCallback(Handler.java:808)
at android.os.Handler.dispatchMessage(Handler.java:103)
at android.os.Looper.loop(Looper.java:193)
at android.app.ActivityThread.main(ActivityThread.java:5322)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:829)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:645)
at dalvik.system.NativeStart.main(Native Method)
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