java.lang.IllegalStateException: Could not find method true(View) in a parent or ancestor Context fo
logcat：
EXCEPTION: main
java.lang.IllegalStateException: Could not find method true(View) in a parent or ancestor Context for android:onClick attribute defined on view class android.widget.TextView
at android.view.View D e c l a r e d O n C l i c k L i s t e n e r . r e s o l v e M e t h o d ( V i e w . j a v a : 5438 ) a t a n d r o i d . v i e w . V i e w DeclaredOnClickListener.resolveMethod(View.java:5438) at android.view.View DeclaredOnClickListener.resolveMethod(View.java:5438)atandroid.view.ViewDeclaredOnClickListener.onClick(View.java:5397)
at android.view.View.performClick(View.java:6329)
at android.view.View P e r f o r m C l i c k . r u n ( V i e w . j a v a : 25002 ) a t a n d r o i d . o s . H a n d l e r . h a n d l e C a l l b a c k ( H a n d l e r . j a v a : 809 ) a t a n d r o i d . o s . H a n d l e r . d i s p a t c h M e s s a g e ( H a n d l e r . j a v a : 102 ) a t a n d r o i d . o s . L o o p e r . l o o p ( L o o p e r . j a v a : 166 ) a t a n d r o i d . a p p . A c t i v i t y T h r e a d . m a i n ( A c t i v i t y T h r e a d . j a v a : 7555 ) a t j a v a . l a n g . r e f l e c t . M e t h o d . i n v o k e ( N a t i v e M e t h o d ) a t c o m . a n d r o i d . i n t e r n a l . o s . R u n t i m e I n i t PerformClick.run(View.java:25002) at android.os.Handler.handleCallback(Handler.java:809) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:166) at android.app.ActivityThread.main(ActivityThread.java:7555) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit PerformClick.run(View.java:25002)atandroid.os.Handler.handleCallback(Handler.java:809)atandroid.os.Handler.dispatchMessage(Handler.java:102)atandroid.os.Looper.loop(Looper.java:166)atandroid.app.ActivityThread.main(ActivityThread.java:7555)atjava.lang.reflect.Method.invoke(NativeMethod)atcom.android.internal.os.RuntimeInitMethodAndArgsCaller.run(RuntimeInit.java:469)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:963)
起因
一个老项目说是在标题栏里面增加一个按钮（上图下文的），点击这个按钮就有一定几率报错。
分析
Could not find method true(View) in a parent or ancestor Context for android:onClick attribute defined on view class android.widget.TextView
遇到问题，首先看错误日志，找关键词：android:onClick,.TextView
通过这两个，再联想到自己加的控件 上图下文，猜测问题是Textview 有问题；
检查发现：
父布局LinearLayout有个android:clickable=“true”，
子控件TextView 也有android:clickable=“true”
解决
实际上 Textview的点击事件也没用，可能是复制代码的时候复制进去了。
根据实际情况留下父布局LinearLayout的android:clickable="true"就行了！