查看寻呼机和列表视图

时间:2013-08-29 03:23:18

标签: android listview android-viewpager

有谁知道这一次发生的原因和原因?

java.lang.ClassCastException: android.support.v4.view.ViewPager$LayoutParams cannot be cast to android.widget.AbsListView$LayoutParams
at android.widget.ListView.clearRecycledState(ListView.java:519)
at android.widget.ListView.resetList(ListView.java:506)
at android.widget.ListView.layoutChildren(ListView.java:1540)
at android.widget.AbsListView.onLayout(AbsListView.java:2296)
at android.view.View.layout(View.java:14055)
at android.view.ViewGroup.layout(ViewGroup.java:4604)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1655)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1513)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1426)
at android.view.View.layout(View.java:14055)
at android.view.ViewGroup.layout(ViewGroup.java:4604)
at android.widget.FrameLayout.onLayout(FrameLayout.java:448)
at android.view.View.layout(View.java:14055)
at android.view.ViewGroup.layout(ViewGroup.java:4604)
at android.support.v4.view.ViewPager.onLayout(ViewPager.java:1141)
at android.view.View.layout(View.java:14055)
at android.view.ViewGroup.layout(ViewGroup.java:4604)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1655)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1513)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1426)
at android.view.View.layout(View.java:14055)
at android.view.ViewGroup.layout(ViewGroup.java:4604)
at android.widget.FrameLayout.onLayout(FrameLayout.java:448)
at android.view.View.layout(View.java:14055)
at android.view.ViewGroup.layout(ViewGroup.java:4604)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1655)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1513)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1426)
at android.view.View.layout(View.java:14055)
at android.view.ViewGroup.layout(ViewGroup.java:4604)
at android.widget.FrameLayout.onLayout(FrameLayout.java:448)
at android.view.View.layout(View.java:14055)
at android.view.ViewGroup.layout(ViewGroup.java:4604)
at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:1992)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1813)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1112)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:4472)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:725)
at android.view.Choreographer.doCallbacks(Choreographer.java:555)
at android.view.Choreographer.doFrame(Choreographer.java:525)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:711)
at android.os.Handler.handleCallback(Handler.java:615)
at android.os.Handler.dispatchMessage(Handler.java:92)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:4898)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1006)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:773)
at dalvik.system.NativeStart.main(Native Method)

我做的是

  1. 使用查看寻呼机打开我的sherlockfragmentactivity

  2. 点击viewpager中listview上的项目,这将带我进入第二项活动

  3. 按回按钮,将返回我们带有viewpager的活动。

  4. 关于这三个步骤的第一个动作很好,但是当我重复第二步和第三步快几次时,有时会导致这个问题。

    知道怎么解决吗?

    这是我的代码:

    import com.actionbarsherlock.app.SherlockFragmentActivity;
    import com.viewpagerindicator.PageIndicator;
    import com.viewpagerindicator.TitlePageIndicator;
    
    import ex.godofsmith.helper.LocationService;
    
    import android.content.Intent;
    import android.os.Bundle;
    import android.support.v4.view.ViewPager;
    
    public class RestoFragmentActivity extends SherlockFragmentActivity  {  
    
        private Intent locationService;
    
        private ViewPager _mViewPager;
        private RestoVPAdapter _adapter;
    
        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_resto);
            setTheme(R.style.Theme_Sherlock_Light_DarkActionBar);
    
            //set location service
            locationService = new Intent(this, LocationService.class);
            //end location service
    
            setUpView();
        }
    
        @Override
        public void onPause(){
            super.onPause();
            stopService(locationService);
        }
    
        @Override
        public void onResume(){
            super.onResume();
            startService(locationService);
        }
    
        @Override
        public void onDestroy(){
            super.onDestroy();
            //stopService(locationService);
        }
    
        private void setUpView(){
    
             _adapter = new RestoVPAdapter(getApplicationContext(),getSupportFragmentManager());
    
             _mViewPager = (ViewPager) findViewById(R.id.viewPager);
             _mViewPager.setAdapter(_adapter);
             _mViewPager.setCurrentItem(0);
             _mViewPager.setOffscreenPageLimit(3);
    
             PageIndicator mIndicator = (TitlePageIndicator)findViewById(R.id.indicator);
             mIndicator.setViewPager(_mViewPager);       
        }
    
    }
    

    // ==================

    import android.content.Context;
    import android.support.v4.app.Fragment;
    import android.support.v4.app.FragmentManager;
    import android.support.v4.app.FragmentStatePagerAdapter;
    
    public class RestoVPAdapter extends FragmentStatePagerAdapter {
        //protected static final String[] CONTENT = new String[] { "Recommended", "Best", "Nearby", "Promo", "New"};
        protected static final String[] CONTENT = new String[] { "Nearby", "Promo", "New"};
        private Context _context;
        private int mCount = CONTENT.length;    
    
        public RestoVPAdapter(Context context, FragmentManager fm) {
            super(fm);
            _context=context;
        }   
    
        @Override
        public Fragment getItem(int position) {
            Fragment f = new Fragment();
            switch(position){
    //      case 0:
    //          //f=RestoRecommendedActivity.newInstance(_context);
    //          break;
    //      case 1:
    //          //f=RestoBestActivity.newInstance(_context);
    //          break;
            case 0:
                f=RestoNearByActivity.newInstance(_context);
                break;
            case 1:
                f=RestoPromoFragment.newInstance(_context);
                break;
            case 2:
                f=RestoNewActivity.newInstance(_context);
                break;
            }
    
            return f;
        }
    
        @Override
        public int getCount() {
            return mCount;
        }
    
        @Override
        public CharSequence getPageTitle(int position) {
          return RestoVPAdapter.CONTENT[position % CONTENT.length];
        }
    
    }
    

    // =========其中包含视图寻呼机的活动的布局

    <?xml version="1.0" encoding="utf-8"?>
    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    
        xmlns:app="http://schemas.android.com/apk/res-auto"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:orientation="vertical"
        android:background="@drawable/background">
    
        <com.viewpagerindicator.TitlePageIndicator
            android:id="@+id/indicator"
            android:padding="10dip"
            android:layout_height="wrap_content"
            android:layout_width="fill_parent"        
            android:textColor="#FF000000"
            app:footerColor="@color/greenslideup"
            app:footerLineHeight="1dp"
            app:footerIndicatorHeight="3dp"
            app:footerIndicatorStyle="underline"
            app:selectedColor="#FF000000"
            app:selectedBold="true"/>
    
         <ex.godofsmith.helper.CustomViewPager
            android:layout_width="fill_parent" 
            android:layout_height="fill_parent"
            android:id="@+id/viewPager" />
    
    </LinearLayout>
    

    / ====视图分页器中我片段的布局===

    <?xml version="1.0" encoding="utf-8"?>
    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
        android:orientation="vertical"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent" >
    
        <ListView
            android:id="@+id/lvNearBy"
            android:layout_width="match_parent"
            android:layout_height="match_parent" >
        </ListView>
    
    </LinearLayout>
    

2 个答案:

答案 0 :(得分:16)

在我的情况下,问题与在扩充时为列表视图的标题设置错误的根容器有关:

错误代码导致错误:

transparentHeaderView = LayoutInflater.from(getActivity()).inflate(R.layout.transparent_header_view, activityContainer, false);

正确代码:

transparentHeaderView = LayoutInflater.from(getActivity()).inflate(R.layout.transparent_header_view, listView, false);
@krishna Dewabrata暗示,他的问题可能是因为与listview的页脚做了类似的事情

答案 1 :(得分:0)

java.lang.ClassCastException: android.support.v4.view.ViewPager$LayoutParams cannot be cast to android.widget.AbsListView$LayoutParams

这一行似乎说你可能在一个小部件上放置了一个布局,然后就无法进行转换。 但我不知道为什么它在第一次按下时有效。

尝试编辑您的布局文件,然后重试。