Exception:
10-24 17:43:15.112: E/AndroidRuntime(11888): java.lang.IllegalStateException: The specified child already has a parent. You must call removeView() on the child's parent first.
10-24 17:43:15.112: E/AndroidRuntime(11888): at android.view.ViewGroup.addViewInner(ViewGroup.java:3596)
10-24 17:43:15.112: E/AndroidRuntime(11888): at android.view.ViewGroup.addView(ViewGroup.java:3449)
10-24 17:43:15.112: E/AndroidRuntime(11888): at android.support.v4.view.ViewPager.addView(ViewPager.java:1305)
10-24 17:43:15.112: E/AndroidRuntime(11888): at android.view.ViewGroup.addView(ViewGroup.java:3394)
10-24 17:43:15.112: E/AndroidRuntime(11888): at android.view.ViewGroup.addView(ViewGroup.java:3370)
10-24 17:43:15.112: E/AndroidRuntime(11888): at com.zhihe.xqsh.adapter.IndexTopPagerAdapter.instantiateItem(IndexTopPagerAdapter.java:72)
10-24 17:43:15.112: E/AndroidRuntime(11888): at android.support.v4.view.PagerAdapter.instantiateItem(PagerAdapter.java:110)
10-24 17:43:15.112: E/AndroidRuntime(11888): at android.support.v4.view.ViewPager.addNewItem(ViewPager.java:833)
10-24 17:43:15.112: E/AndroidRuntime(11888): at android.support.v4.view.ViewPager.populate(ViewPager.java:1017)
10-24 17:43:15.112: E/AndroidRuntime(11888): at android.support.v4.view.ViewPager.populate(ViewPager.java:915)
10-24 17:43:15.112: E/AndroidRuntime(11888): at android.support.v4.view.ViewPager$3.run(ViewPager.java:245)
10-24 17:43:15.112: E/AndroidRuntime(11888): at android.view.Choreographer$CallbackRecord.run(Choreographer.java:761)
10-24 17:43:15.112: E/AndroidRuntime(11888): at android.view.Choreographer.doCallbacks(Choreographer.java:574)
10-24 17:43:15.112: E/AndroidRuntime(11888): at android.view.Choreographer.doFrame(Choreographer.java:543)
10-24 17:43:15.112: E/AndroidRuntime(11888): at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:747)
10-24 17:43:15.112: E/AndroidRuntime(11888): at android.os.Handler.handleCallback(Handler.java:733)
10-24 17:43:15.112: E/AndroidRuntime(11888): at android.os.Handler.dispatchMessage(Handler.java:95)
10-24 17:43:15.112: E/AndroidRuntime(11888): at android.os.Looper.loop(Looper.java:136)
10-24 17:43:15.112: E/AndroidRuntime(11888): at android.app.ActivityThread.main(ActivityThread.java:5050)
10-24 17:43:15.112: E/AndroidRuntime(11888): at java.lang.reflect.Method.invokeNative(Native Method)
10-24 17:43:15.112: E/AndroidRuntime(11888): at java.lang.reflect.Method.invoke(Method.java:515)
10-24 17:43:15.112: E/AndroidRuntime(11888): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:805)
10-24 17:43:15.112: E/AndroidRuntime(11888): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:621)
10-24 17:43:15.112: E/AndroidRuntime(11888): at dalvik.system.NativeStart.main(Native Method)
10-24 17:43:15.132: I/Process(11888): Sending signal. PID: 11888 SIG: 9
原因：
當圖片向左滑動的時候，之后執行instantiateItem方法，而不去執行刪除方法，所以出現上述異常
所以在instantiateItem方法中執行刪除操作，如下：
View child = mPageViewList.get(position);
if(child.getParent()!=null){
((ViewPager)container).removeView(child);
}
注意，在此執行了刪除操作之后，把destroyItem方法中的刪除去掉，因為，如果不去掉向左滑動的時候，會顯示為空，原因如下：打印url是進行加載View，當加載完成之后會去執行destroyItem中的方法，所以，需要把destroyItem中的刪除去掉。
10-24 17:49:14.452: W/(16419): ----zhihe---- IndextoppagerAdapter instantiateItem position:0
10-24 17:49:14.452: W/(16419): ----zhihe---- IndextoppagerAdapter instantiateItem image:http://ys.rili.com.cn/images/image/201401/0111174780.jpg
10-24 17:49:14.462: W/(16419): ----zhihe---- IndextoppagerAdapter destroyItem position:0
posted on 2014-10-24 17:53
Terry Zou 閱讀(1350)
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