在ViewPager android中创建片段
MainActivityextends fragmentActivity具有调用listviewadapter的listview,其中有一个带有ViewpagerAdapter的ViewPager,如果我需要在ViewPager中生成5个片段,那么如何将getFragmentManager传递给适配器 MainActivity[fragmentActivity]-->Listview-->ListviewAdapter[Custom BaseAdapter with getview of layout ViewPager]-->ViewPager-->ViewPageAdapter[我需要根据位置创建5个片段?] 如果我粘贴了整个代码,那么我只附加了一个代码,这会太长在ViewPager android中创建片段,android,listview,android-fragments,android-viewpager,Android,Listview,Android Fragments,Android Viewpager,MainActivityextends fragmentActivity具有调用listviewadapter的listview,其中有一个带有ViewpagerAdapter的ViewPager,如果我需要在ViewPager中生成5个片段,那么如何将getFragmentManager传递给适配器 MainActivity[fragmentActivity]-->Listview-->ListviewAdapter[Custom BaseAdapter with getview of lay
public class ViewPagerAdapter extends PagerAdapter {
ArrayList<ModelClass> arrayModelClasses = new ArrayList<ModelClass>();
Context mcontext ;
LinearLayout layouttest;
final int PAGE_COUNT = 5;
private String titles[] = new String[] { "Villa ","", "" ,"","",""};
private int[] imageResId = { R.drawable.transparant,R.drawable.ic_action_place, R.drawable.icon_3d1,
R.drawable.icon_flooplan,R.drawable.icon_gallery,R.drawable.icon_location };
@SuppressLint("NewApi")
@Override
public void finishUpdate(ViewGroup container) {
// TODO Auto-generated method stub
super.finishUpdate(container);
}
public ViewPagerAdapter(ArrayList<ModelClass> arrayModelClasses , Context context) {
super();
this.arrayModelClasses = arrayModelClasses;
this.mcontext= context;
}
@Override
public boolean isViewFromObject(View collection, Object object) {
return collection == ((View) object);
}
View view;
@Override
public Object instantiateItem(View collection, int position) {
if (position == 0) {
//need to call fragment 1
}if (position == 1) {
//need to call fragment 2
}if (position == 2) {
//need to call fragment 3
}if (position == 3) {
//need to call fragment 4
}if (position == 4) {
//need to call fragment 5
}
return view;
}
@Override
public void destroyItem(View container, int position, Object object) {
((ViewPager) container).removeView((View) object);
}
@Override
public CharSequence getPageTitle(int position) {
Drawable image = mcontext.getResources().getDrawable(imageResId[position]);
image.setBounds(0, 0, image.getIntrinsicWidth(), image.getIntrinsicHeight());
SpannableString sb = new SpannableString(" " + titles[position] );
ImageSpan imageSpan = new ImageSpan(image, ImageSpan.ALIGN_BOTTOM);
sb.setSpan(imageSpan, 0, 1, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
return sb;
}
@Override
public int getCount() {
return PAGE_COUNT;
}
}
但是它将FragmentPagerAdapter用于viewPager,并从FragmentActivity传递getSupportFragmentManager,但是使用2个适配器是不可能的,所以请提供帮助
问题:如何在listview中的viewPager中创建片段。对不起,如果它让人困惑的话
谢谢,考虑到您没有发布您的ListView适配器,我假设您以类似的方式扩展了BaseAdapter。在getView上。。。方法实例化新的ViewPagerAdapter并将其设置为列表项xml中定义的PagerAdapter
注意:在ListView中有一个ViewPager,特别是在以这种方式加载项目时,可能会导致性能低下。我在ViewPager中附加了片段,代码如下所示 公共类IntroslideActivity扩展了FragmentActivity{
private static int NUM_PAGES = 5;
private ViewPager mPager;
private PagerAdapter mPagerAdapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_introslide);
mPager = (ViewPager) findViewById(R.id.pager);
/**
*一个简单的寻呼机适配器,在
*顺序。
*/
私有类ScreenSlidePageAdapter扩展了FragmentPagerAdapter{
protected final int[] ICONS = new int[] {
R.drawable.ic_message,
R.drawable.ic_phone,
R.drawable.ic_message,
R.drawable.ic_message,
R.drawable.ic_message
};
public ScreenSlidePagerAdapter(android.support.v4.app.FragmentManager fm) {
super(fm);
}
@Override
public android.support.v4.app.Fragment getItem(int position) {
android.support.v4.app.Fragment frm = null;
System.out.println("scrolling position"+position);
if(position==0){
frm=ScreenSlidePageFragment.create(position);
}
else if(position==1){
frm=Screenslidetwo.create(position);
}
else if(position==2){
frm=Screenslidethree.create(position);
}
else if(position==3){
frm=Screenslidefour.create(position);
}
else if(position==4){
frm=Screenslidefive.create(position);
}
return frm;
}
@Override
public int getCount() {
return NUM_PAGES;
}
public void setCount(int count) {
if (count > 0 && count < 5) {
NUM_PAGES = count;
notifyDataSetChanged();
}
}
}
mPagerAdapter = new ScreenSlidePagerAdapter(getSupportFragmentManager());
mPager.setAdapter(mPagerAdapter);
}
}是的,我已经完成了tat,但是如何在ViewPagerAdapter中传递getFramentManager来实例化片段呢?哦。您可以创建一个局部变量,在实例化ListView适配器时将其设置在该适配器上,然后在实例化后将其传递给ViewPagerAdapter。看起来像adapter=new MyListViewAdapterfragmentManager;ViewPagerAdapter也一样@Anitha但是在listviewadatper中使用什么类型的变量来保存getSupportFragmentManager而不将其扩展到fragmentadatper。这已经解决了,但我仍然有一个新问题。。。如果可以的话,请调查一下solvehttp://stackoverflow.com/questions/29315705/listview-viewpager-doesnt-set-fragment-androidIf 您需要根据位置创建,然后需要为特定位置维护片段的arraylist抱歉@karthika这没有帮助我想从listview[baseadapter]传递getSupportFragmentManagerviewpageradapter[PagerAdapter]的适配器。您的示例显示在fragmentActivity中调用viewpagerAdapter。