自定义控件---添加子控件错误

来源：互联网发布：怎么分辨淘宝客编辑：程序博客网时间：2024/06/11 14:23

Caused by: java.lang.IllegalStateException: The specified child already has a parent. You must call removeView() on the child's parent first.
at android.view.ViewGroup.addViewInner(ViewGroup.java:3937)
at android.view.ViewGroup.addView(ViewGroup.java:3787)
at android.view.ViewGroup.addView(ViewGroup.java:3728)
at android.view.ViewGroup.addView(ViewGroup.java:3701)
at com.example.administrator.demo1.CustomActivity.initView(CustomActivity.java:65)
at com.example.administrator.demo1.CustomActivity.onCreate(CustomActivity.java:45)
at android.app.Activity.performCreate(Activity.java:6049)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1106)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2294)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2403)
at android.app.ActivityThread.access$800(ActivityThread.java:154)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1317)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5298)
at java.lang.reflect.Method.invoke(Native Method)

at java.lang.reflect.Method.invoke(Method.java:372)

自定义控件，向控件添加子控件时，会出现

Caused by: java.lang.IllegalStateException: The specified child already has a parent. You must call removeView() on the child's parent first.

这个bug，这是因为重复给某个控件设置爸爸，父控件。

例如图中，inflate ,此时，inflate是全局变量。所以当再次循环的时候，这个儿子还是这个儿子，再给这个儿子找个爸爸就乱了。

因此要重新再生个儿子2，再给这个儿子2找爸爸就不会出错。每次添加子控件的时候，一定要保证子控件没有被添加过父控件 如下图

切记，出现2次这种错误了~~@！！！！

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