单个 ListView 内的多个 ViewPagers 崩溃

Multiple ViewPagers Inside Single ListView is Crashing(单个 ListView 内的多个 ViewPagers 崩溃)

问题描述

当通过 Viewpagers 滑动时，它的工作完美，我在 getView() 方法上使用 ViewPagers 的 setId() 方法完成了>BaseAdapter.

When Swipe through Viewpagers its Working Perfectly which i had done using setId() method for ViewPagers on getView() method of BaseAdapter.

实现代码类似于这个线程，我在这里找到:在这篇文章中

Code Of Implementation is similar to this thread, which i found here: On This Post

在创建每个 ViewPager 的 Object 后添加 setId(position+1).

Just added setId(position+1) after creating each ViewPager's Object.

但是当我开始滚动列表(水平)时，应用程序崩溃，显示以下 Logcat 中的错误:

06-18 21:06:55.020: E/AndroidRuntime(1928): 致命异常: main06-18 21:06:55.020: E/AndroidRuntime(1928):android.content.res.Resources$NotFoundException:找不到资源 ID #0x7 06-18 21:06:55.020: E/AndroidRuntime(1928): atandroid.content.res.Resources.getResourceName(Resources.java:1653)06-18 21:06:55.020: E/AndroidRuntime(1928): 在android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:903)06-18 21:06:55.020: E/AndroidRuntime(1928): 在android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1088)06-18 21:06:55.020: E/AndroidRuntime(1928): 在android.support.v4.app.BackStackRecord.run(BackStackRecord.java:682)06-18 21:06:55.020: E/AndroidRuntime(1928): 在android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1444)06-18 21:06:55.020: E/AndroidRuntime(1928): 在android.support.v4.app.FragmentManagerImpl.executePendingTransactions(FragmentManager.java:461)06-18 21:06:55.020: E/AndroidRuntime(1928): 在android.support.v4.app.FragmentPagerAdapter.finishUpdate(FragmentPagerAdapter.java:141) 06-18 21:06:55.020: E/AndroidRuntime(1928): atandroid.support.v4.view.ViewPager.populate(ViewPager.java:1064) 06-1821:06:55.020:E/AndroidRuntime(1928):在android.support.v4.view.ViewPager.populate(ViewPager.java:911) 06-1821:06:55.020:E/AndroidRuntime(1928):在android.support.v4.view.ViewPager.setAdapter(ViewPager.java:440) 06-1821:06:55.020:E/AndroidRuntime(1928):在com.example.democardswipelistview.CustomSwipeAdapter.getView(CustomSwipeAdapter.java:72)06-18 21:06:55.020: E/AndroidRuntime(1928): 在android.widget.AbsListView.obtainView(AbsListView.java:2012) 06-1821:06:55.020:E/AndroidRuntime(1928):在android.widget.ListView.makeAndAddView(ListView.java:1772) 06-1821:06:55.020:E/AndroidRuntime(1928):在android.widget.ListView.fillUp(ListView.java:705) 06-18 21:06:55.020:E/AndroidRuntime(1928):在android.widget.ListView.fillGap(ListView.java:645) 06-18 21:06:55.020:E/AndroidRuntime(1928):在android.widget.AbsListView.trackMotionScroll(AbsListView.java:4546)06-18 21:06:55.020: E/AndroidRuntime(1928): 在android.widget.AbsListView$FlingRunnable.run(AbsListView.java:3813)06-18 21:06:55.020: E/AndroidRuntime(1928): 在android.os.Handler.handleCallback(Handler.java:605) 06-1821:06:55.020:E/AndroidRuntime(1928):在android.os.Handler.dispatchMessage(Handler.java:92) 06-1821:06:55.020:E/AndroidRuntime(1928):在android.os.Looper.loop(Looper.java:137) 06-18 21:06:55.020:E/AndroidRuntime(1928):在android.app.ActivityThread.main(ActivityThread.java:4424) 06-1821:06:55.020:E/AndroidRuntime(1928):在java.lang.reflect.Method.invokeNative(Native Method) 06-1821:06:55.020:E/AndroidRuntime(1928):在java.lang.reflect.Method.invoke(Method.java:511) 06-18 21:06:55.020:E/AndroidRuntime(1928):在com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)06-18 21:06:55.020: E/AndroidRuntime(1928): 在com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551) 06-1821:06:55.020:E/AndroidRuntime(1928):在dalvik.system.NativeStart.main(Native Method)

06-18 21:06:55.020: E/AndroidRuntime(1928): FATAL EXCEPTION: main 06-18 21:06:55.020: E/AndroidRuntime(1928): android.content.res.Resources$NotFoundException: Unable to find resource ID #0x7 06-18 21:06:55.020: E/AndroidRuntime(1928): at android.content.res.Resources.getResourceName(Resources.java:1653) 06-18 21:06:55.020: E/AndroidRuntime(1928): at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:903) 06-18 21:06:55.020: E/AndroidRuntime(1928): at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1088) 06-18 21:06:55.020: E/AndroidRuntime(1928): at android.support.v4.app.BackStackRecord.run(BackStackRecord.java:682) 06-18 21:06:55.020: E/AndroidRuntime(1928): at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1444) 06-18 21:06:55.020: E/AndroidRuntime(1928): at android.support.v4.app.FragmentManagerImpl.executePendingTransactions(FragmentManager.java:461) 06-18 21:06:55.020: E/AndroidRuntime(1928): at android.support.v4.app.FragmentPagerAdapter.finishUpdate(FragmentPagerAdapter.java:141) 06-18 21:06:55.020: E/AndroidRuntime(1928): atandroid.support.v4.view.ViewPager.populate(ViewPager.java:1064) 06-18 21:06:55.020: E/AndroidRuntime(1928): at android.support.v4.view.ViewPager.populate(ViewPager.java:911) 06-18 21:06:55.020: E/AndroidRuntime(1928): at android.support.v4.view.ViewPager.setAdapter(ViewPager.java:440) 06-18 21:06:55.020: E/AndroidRuntime(1928): at com.example.democardswipelistview.CustomSwipeAdapter.getView(CustomSwipeAdapter.java:72) 06-18 21:06:55.020: E/AndroidRuntime(1928): at android.widget.AbsListView.obtainView(AbsListView.java:2012) 06-18 21:06:55.020: E/AndroidRuntime(1928): at android.widget.ListView.makeAndAddView(ListView.java:1772) 06-18 21:06:55.020: E/AndroidRuntime(1928): at android.widget.ListView.fillUp(ListView.java:705) 06-18 21:06:55.020: E/AndroidRuntime(1928): at android.widget.ListView.fillGap(ListView.java:645) 06-18 21:06:55.020: E/AndroidRuntime(1928): at android.widget.AbsListView.trackMotionScroll(AbsListView.java:4546) 06-18 21:06:55.020: E/AndroidRuntime(1928): at android.widget.AbsListView$FlingRunnable.run(AbsListView.java:3813) 06-18 21:06:55.020: E/AndroidRuntime(1928): at android.os.Handler.handleCallback(Handler.java:605) 06-18 21:06:55.020: E/AndroidRuntime(1928): at android.os.Handler.dispatchMessage(Handler.java:92) 06-18 21:06:55.020: E/AndroidRuntime(1928): at android.os.Looper.loop(Looper.java:137) 06-18 21:06:55.020: E/AndroidRuntime(1928): at android.app.ActivityThread.main(ActivityThread.java:4424) 06-18 21:06:55.020: E/AndroidRuntime(1928): at java.lang.reflect.Method.invokeNative(Native Method) 06-18 21:06:55.020: E/AndroidRuntime(1928): at java.lang.reflect.Method.invoke(Method.java:511) 06-18 21:06:55.020: E/AndroidRuntime(1928): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784) 06-18 21:06:55.020: E/AndroidRuntime(1928): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551) 06-18 21:06:55.020: E/AndroidRuntime(1928): at dalvik.system.NativeStart.main(Native Method)

推荐答案

好的，2天后，我能够解决类似的问题.

Ok so after 2 days, I was able to solve a similar issue like this.

首先不要在 getView() 中持久化你的 ViewPager.我的意思是你不应该调用 convertView.setTag(holder); 或 holder = (ViewHolder)convertView.getTag().只需删除检查 convertView 是否为空的 if 语句.然后完全删除 else 语句块.

First do not persist your ViewPager in the getView(). What I mean by this is that you shouldn't call convertView.setTag(holder); or holder = (ViewHolder)convertView.getTag(). Just remove the if statement that checks if convertView is null. Then completely remove the else statement block.

要进行的另一项更改(这不是原因之一)是您需要优化设置 ID 的方式.而不是 setId(position+1)，在你的 values 文件夹中创建一个 Ids.xml 文件，然后在该文件中，放入:

Another change to make (this is not one of the causes) is you need to optimize the way you set the Ids. Instead of setId(position+1), make an Ids.xml file in your values folder, then inside that file, put this:

<?xml version="1.0" encoding="utf-8"?>

<resources>
  <!-- use to generate non-conflicting ids for the viewpager -->

  <item name="viewpager_id_base" type="id"/>
</resources>

然后在您的 getView() 方法中将 setId(position+1) 替换为 setId(R.id.viewpager_id_base + position)

Then in your getView() method replace setId(position+1) with setId(R.id.viewpager_id_base + position)

经过上述更改后，列表不会崩溃，但在您将项目滚动到屏幕后它会消失.这是解决方法:

After the above change, the list will not crash, but it will disappear after you scroll the item off screen. Here is the fix for that:

确保您的自定义 PageAdapter 扩展了 FragmentStatePagerAdapter，而不是 FragmentPagerAdapter.这将正确销毁视图并触发 onCreateView().

Make sure your Custom PageAdapter extends FragmentStatePagerAdapter, not FragmentPagerAdapter. This will properly destroy the views and trigger the onCreateView().

这篇关于单个 ListView 内的多个 ViewPagers 崩溃的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持编程学习网！