異常java.lang.IllegalStateException的解決


在初始化viewPagerAdapter時,顯示異常。從網上找了找有兩類這樣的問題,一種是說給一個視圖設置了兩個父類,如:

TextView tv = new TextView();
layout.adView(tv);
layout2.adView(tv);這樣就會報異常,需要先在其父視圖中釋放才能添加到另一個父視圖

第二種是說:初始化時使用inflater可能出現異常

View result = inflater.inflate(R.layout.customer_layout, container);

改成下面就可以了,大概意思是不將container作為新創建的view的父視圖。
View result = inflater.inflate(R.layout.customer_layout, container, false);
 

 

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:3562)
                                                                              at android.view.ViewGroup.addView(ViewGroup.java:3415)
                                                                              at android.support.v4.view.ViewPager.addView(ViewPager.java:1341)
                                                                              at android.view.ViewGroup.addView(ViewGroup.java:3360)
                                                                              at android.view.ViewGroup.addView(ViewGroup.java:3336)
                                                                              at com.atguigu.beijingnews2.newseconddetailpager.SecondDetailPager$2.instantiateItem(SecondDetailPager.java:69)
                                                                              at android.support.v4.view.ViewPager.addNewItem(ViewPager.java:869)
                                                                              at android.support.v4.view.ViewPager.populate(ViewPager.java:1085)
                                                                              at android.support.v4.view.ViewPager.populate(ViewPager.java:951)
                                                                              at android.support.v4.view.ViewPager$3.run(ViewPager.java:250)
                                                                              at android.view.Choreographer$CallbackRecord.run(Choreographer.java:761)
                                                                              at android.view.Choreographer.doCallbacks(Choreographer.java:574)
                                                                              at android.view.Choreographer.doFrame(Choreographer.java:543)
                                                                              at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:747)
                                                                              at android.os.Handler.handleCallback(Handler.java:733)
                                                                              at android.os.Handler.dispatchMessage(Handler.java:95)
                                                                              at android.os.Looper.loop(Looper.java:136)
                                                                              at android.app.ActivityThread.main(ActivityThread.java:5045)
                                                                              at java.lang.reflect.Method.invokeNative(Native Method)
                                                                              at java.lang.reflect.Method.invoke(Method.java:515)
                                                                              at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
                                                                              at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
                                                                              at dalvik.system.NativeStart.main(Native Method)

 最后是我的錯誤代碼:重復將同一個imageView添加到container中也不可以,也屬於將一個view對象設置了兩個父視圖。

解決方案是將ImageView imageView = new ImageView(activity);挪到instantiateItem()中,即創建多個對象就可以了。

1    ImageView imageView = new ImageView(activity);
      @Override
2 public Object instantiateItem(ViewGroup container, int position) { 3 4 x.image().bind(imageView, topimageUris.get(position)); 5 imageViews.add(imageView); 6 container.addView(imageViews.get(position)); 7 return imageViews.get(position); 8 }

 


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