Fragment Why not load ListView, ask how it happened, hastily

listview android fragment

 
public class HomeFragment extends Fragment {

private Context context; 
private View convertView; 
private GridView gridview; 
private ListView listView; 
private HomeListAdapter homeListAdapter; 
private HomeFourGridsAdapter fourGridsAdapter; 
private ViewPager viewPager; 
private int currentItem; 
private int [] imageResId; 
private ScheduledExecutorService scheduledExecutorService; 
private List  imageViews; 
private String [] titles; 
private List  dots; 
protected final static int INIT_NEWS_IMGS = 101; 
protected final static int INIT_NEWS_LIST = 102; 
protected final static int INIT_NEWS_BTNS = 103; 
private TextView tv_title; 

public HomeFragment () {
} 

public HomeFragment (Context context) {
this.context = context; 
} 

@ Override 
public void onCreate (Bundle savedInstanceState) {
super.onCreate (savedInstanceState); 
/ / Set Fragment not rebuild 
setRetainInstance (true); 
} 

@ Override 
public View onCreateView (LayoutInflater inflater, ViewGroup container, 
Bundle savedInstanceState) {
currentItem = 0; 
convertView = inflater.inflate (R.layout.fragment_home, null); 

initNewsList (); 
initImgBtns (); 
initNewsViewPage (); 
return convertView; 
} 

@ Override 
public void onStart () {
scheduledExecutorService = Executors.newSingleThreadScheduledExecutor (); 
scheduledExecutorService.scheduleAtFixedRate (new ScrollTask ​​(), 3, 3, 
TimeUnit.SECONDS); 
super.onStart (); 
} 

@ Override 
public void onStop () {
scheduledExecutorService.shutdown (); 
super.onStop (); 
} 

/ / Initialize the sliding picture 
private void initNewsViewPage () {

imageResId = new int [] {R.drawable.gallery_photo_1, 
R.drawable.gallery_photo_3, R.drawable.gallery_photo_4, 
R.drawable.gallery_photo_8, R.drawable.gallery_photo_3}; 
titles = new String [imageResId.length]; 
titles [0] = "11111"; 
titles [1] = "22222"; 
titles [2] = "33333"; 
titles [3] = "44444"; 
titles [4] = "55555"; 

imageViews = new ArrayList  (); 

for (int i = 0; i ImageView imageView = new ImageView (this.context); 
imageView.setImageResource (imageResId [i]); 
imageView.setScaleType (ScaleType.CENTER_CROP); 
imageViews.add (imageView); 
} 

dots = new ArrayList  (); 
dots.add (convertView.findViewById (R.id.v_dot0)); 
dots.add (convertView.findViewById (R.id.v_dot1)); 
dots.add (convertView.findViewById (R.id.v_dot2)); 
dots.add (convertView.findViewById (R.id.v_dot3)); 
dots.add (convertView.findViewById (R.id.v_dot4)); 

tv_title = (TextView) convertView.findViewById (R.id.tv_title); 
tv_title.setText (titles [0]); 

viewPager = (ViewPager) convertView.findViewById (R.id.vp); 
viewPager.setAdapter (new HomeNewsViewPaperAdapter (imageResId, 
imageViews)); 

viewPager.setOnPageChangeListener (new NewsViewPageChangeListener ()); 
} 

/ / Initialize the news list 
private void initNewsList () {
listView = (ListView) convertView.findViewById (R.id.home_news_listview); 
homeListAdapter = new HomeListAdapter (this.context, new int [] {
drawable.app_logo, drawable.app_logo}, new String [] {"1111", 
"1111"}, new String [] {"2222", "2222"}); 

Message message = handler.obtainMessage (); 
message.what = this.INIT_NEWS_LIST; 
handler2.handleMessage (message); 
} 

/ / Initialize the four buttons 
 Homeprivate void initImgBtns () {
gridview = (GridView) convertView.findViewById (R.id.home_grilView); 
fourGridsAdapter = new HomeFourGridsAdapter (this.context, new int [] {
drawable.app_logo, drawable.app_logo, drawable.app_logo, 
drawable.app_logo}); 

Message message = handler.obtainMessage (); 
message.what = this.INIT_NEWS_BTNS; 
handler2.handleMessage (message); 
} 

private Handler handler = new Handler () {
public void handleMessage (android.os.Message msg) {
viewPager.setCurrentItem (currentItem); 
}; 
}; 

private Handler handler2 = new Handler () {
public void handleMessage (Message msg) {
switch (msg.what) {
case HomeFragment.INIT_NEWS_LIST: 
listView.setAdapter (homeListAdapter); 
homeListAdapter.notifyDataSetChanged (); 
break; 
case HomeFragment.INIT_NEWS_BTNS: 
gridview.setAdapter (fourGridsAdapter); 
fourGridsAdapter.notifyDataSetChanged (); 
break; 
} 
}; 
}; 

/ / Picture Scroll threads 
private class ScrollTask ​​implements Runnable {

public void run () {
synchronized (viewPager) {
currentItem = (currentItem + 1)% imageViews.size (); 
handler.obtainMessage () sendToTarget ();. 
} 
} 

} 

/ / Listener touch slide images 
private class NewsViewPageChangeListener implements OnPageChangeListener, 
OnClickListener {
private int oldPosition = 0; 

public void onPageSelected (int position) {
currentItem = position; 
tv_title.setText (titles [position]); 
. dots.get (oldPosition) setBackgroundResource (R.drawable.dot_normal); 
. dots.get (position) setBackgroundResource (R.drawable.dot_focused); 
oldPosition = position; 
} 

public void onPageScrollStateChanged (int arg0) {

} 

public void onPageScrolled (int arg0, float arg1, int arg2) {

} 

@ Override 
public void onClick (View v) {
/ / Jump 
} 
} 

} 

 
public class HomeListAdapter extends BaseAdapter {

Context context; 
int [] imgs; 
String [] titles; 
String [] contents; 
int count; 

public HomeListAdapter (Context context, int [] imgs, String [] titles, 
String [] contents) {
this.context = context; 
this.imgs = imgs; 
this.titles = titles; 
this.contents = contents; 
} 

@ Override 
public int getCount () {
/ / TODO Auto-generated method stub 
return count; 
} 

@ Override 
public Object getItem (int position) {
/ / TODO Auto-generated method stub 
return null; 
} 

@ Override 
public long getItemId (int position) {
/ / TODO Auto-generated method stub 
return 0; 
} 

@ Override 
public View getView (int position, View convertView, ViewGroup parent) {
Log.e ("", "listView"); 
ViewHolder holder; 
if (convertView == null) {
convertView = LayoutInflater.from (this.context). inflate (
R.layout.item_home_newslist, null); 
holder = new ViewHolder (); 
holder.imgView = (ImageView) convertView.findViewById (R.id.row_img); 
holder.title = (TextView) convertView.findViewById (R.id.row_title); 
holder.content = (TextView) convertView 
. FindViewById (R.id.row_content); 
convertView.setTag (holder); 
} Else {
holder = (ViewHolder) convertView.getTag (); 
} 

holder.imgView.setBackgroundColor (imgs [position]); 
holder.title.setText (titles [position]); 
holder.content.setText (contents [position]); 
return convertView; 
} 

private class ViewHolder {
TextView title; 
TextView content; 
ImageView imgView; 
} 

} 

Below there is a list, but did not load .....
First time Fragment, I could not be loaded if not ListFragment ListView, I do not know why there can not be loaded, how to write is not loaded, and no abnormal, debugging Adapter, do not jump into getView inside.

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Reply:
Constructors HomeListAdapter's assignment to count
Reply:

cited a floor hjywyj reply:

constructor

HomeListAdapter to count in the assignment

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