我的列表片段类
package com.zaa.yhgj;
public class HomeFragment extends ListFragment {
private List<ListViewItem> mItems; // ListView items list
View myFragmentView;
ArrayList<View> chart_view = new ArrayList<View>();
List<Integer> onedimen = new ArrayList<Integer>();
List<List> aa = new ArrayList<List>();
///
List<List> statuslistoflist = new ArrayList<List>();
List<String> statusonedimen = new ArrayList<String>();
private List<DialogInterface.OnClickListener> nItems;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
myFragmentView = inflater.inflate(R.layout.dashboardlist, container, false);
HashMap<String,Integer> myhash=new HashMap<String, Integer>() ;
myhash.put("Pending",0);
myhash.put("In Progress",0);
myhash.put("Limitation",0);
myhash.put("Needs Research",0);
myhash.put("In Testing",0);
myhash.put("Issue Not Clear",0);
myhash.put("Unassigned",0);
int mainclasssize = Constants.listuserprojectMain.getMainListClass().size();
int[] listsize = new int[mainclasssize];
String[] projectname = new String[mainclasssize];
int[] openissuecount = new int[mainclasssize];
for (int k = 0; k < mainclasssize; k++) {
listsize[k] = Constants.listuserprojectMain.getMainListClass().get(k).getProjectIssue().size();
projectname[k] = Constants.listuserprojectMain.getMainListClass().get(k).getName();
openissuecount[k] = Constants.listuserprojectMain.getMainListClass().get(k).getOpenIssueCount();
}
for (int w = 0; w < mainclasssize; w++) {
onedimen = new ArrayList<Integer>();
for (int x = 0; x < listsize[w]; x++) {
myhash.put(Constants.listuserprojectMain.getMainListClass().get(w).getProjectIssue().get(x).getStatus(),Constants.listuserprojectMain.getMainListClass().get(w).getProjectIssue().get(x).getIssueCount());
}
Set keys = myhash.keySet();
Iterator itr = keys.iterator();
String key;
int value;
while(itr.hasNext())
{
key = (String)itr.next();
onedimen.add((Integer)myhash.get(key));
value = (Integer)myhash.get(key);
// System.out.println(key + " - "+ value);
}
aa.add(onedimen);
statuslistoflist.add(statusonedimen);
}
for (int v = 0; v < aa.size(); v++) {
chart_view.add(openChart(aa.get(v)));
}
mItems = new ArrayList<ListViewItem>();
nItems = new ArrayList<DialogInterface.OnClickListener>();
Resources resources = getResources();
for (int f = 0; f < aa.size(); f++) {
mItems.add(new ListViewItem(projectname[f], openissuecount[f], chart_view.get(f)));
}
nItems.add(new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
}
});
// initialize and set the list adapter
setListAdapter(new ListViewDemoAdapter(getActivity(), mItems));
return myFragmentView;
}
private View openChart(List<Integer> chartvaluedd) {
return v;
}
}
我的适配器类是 公共类ListViewDemoAdapter扩展了ArrayAdapter {
public ListViewDemoAdapter(Context context, List<ListViewItem> items) {
super(context, R.layout.dashboardlistview_item, items);
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder viewHolder= new ViewHolder();
if(convertView == null) {
// inflate the GridView item layout
LayoutInflater inflater = LayoutInflater.from(getContext());
convertView = inflater.inflate(R.layout.dashboardlistview_item, parent, false);
// initialize the view holder
// viewHolder.ivIcon = (ImageView) convertView.findViewById(R.id.ivIcon);
viewHolder.graphView = (LinearLayout) convertView.findViewById(R.id.ll_chart);
viewHolder.tvCreateIssue = (TextView) convertView.findViewById(R.id.tvCreateissue);
viewHolder.tvDetails = (TextView) convertView.findViewById(R.id.tv_details);
viewHolder.tvIssue = (TextView) convertView.findViewById(R.id.tv_issues);
viewHolder.tvProjectTitle = (TextView) convertView.findViewById(R.id.tv_projectTitle);
viewHolder.tvOpenIssueCount = (TextView) convertView.findViewById(R.id.tv_openissues);
convertView.setTag(viewHolder);
} else {
viewHolder = (ViewHolder) convertView.getTag();
// recycle the already inflated view
///error when scrolling graph
viewHolder.graphView.removeAllViews();
}
// update the item view
final ListViewItem item = getItem(position);
viewHolder.tvCreateIssue.setText("Create Issue");
viewHolder.tvProjectTitle.setText(item.title);
viewHolder.graphView.addView(item.chartview);
viewHolder.tvOpenIssueCount.setText("Open Issues "+item.openissuecount);
viewHolder.tvCreateIssue.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Toast.makeText(getContext(), item.title, Toast.LENGTH_SHORT).show();
}
});
/////
viewHolder.tvIssue.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Toast.makeText(getContext(),"issue",Toast.LENGTH_LONG).show();
}
});
return convertView;
}
private static class ViewHolder {
// ImageView ivIcon;
LinearLayout graphView;
TextView tvCreateIssue;
TextView tvDetails;
TextView tvProjectTitle;
TextView tvOpenIssueCount;
TextView tvIssue;
}
}
我的xml布局
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<include layout="@layout/top" />
<ListView
android:id="@android:id/list"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:scrollbars="none" >
</ListView>
</LinearLayout>
我的listview项目是
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="center"
android:gravity="center_vertical"
android:background="@color/list_background"
android:padding="5dp"
android:id="@+id/ww"
>
<!-- the innner view - provides the white rectangle -->
<RelativeLayout android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:padding="5dp"
android:background="@drawable/frame"
android:id="@+id/jhhh">
<!-- the icon view -->
<TextView
android:id="@+id/tv_projectTitle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Project name"
android:textSize="16dp"
android:textStyle="bold"
android:layout_centerHorizontal="true"
/>
<LinearLayout android:id="@+id/ll_chart"
android:orientation="vertical"
android:layout_below="@+id/tv_projectTitle"
android:layout_width="wrap_content"
android:layout_height="230dp"
android:background="#ffffff"
android:padding="5dp"
android:scaleType="fitXY" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@id/ll_chart"
android:id="@+id/tv_openissues"
android:text="Open Issues 24"/>
<LinearLayout
android:layout_width="wrap_content"
android:id="@+id/ll_textview"
android:padding="5dp"
android:layout_alignParentRight="true"
android:layout_below="@id/tv_openissues"
android:orientation="horizontal"
android:layout_height="wrap_content">
<TextView android:id="@+id/tvCreateissue"
android:drawableLeft="@drawable/bug6"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Create Issue"
/>
<!-- the description view -->
<TextView android:id="@+id/tv_details"
android:layout_below="@id/tvCreateissue"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:drawableLeft="@drawable/bars64"
android:layout_marginLeft="5dp"
android:text="Details"
/>
<TextView android:id="@+id/tv_issues"
android:layout_below="@id/tvCreateissue"
android:layout_marginLeft="5dp"
android:drawableLeft="@drawable/bug6"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Issues"
/>
</LinearLayout>
</RelativeLayout>
</RelativeLayout>
答案 0 :(得分：1)
我可能错了，但错误似乎就在这里：
viewHolder.graphView.addView(item.chartview);
将视图item.chartview添加到graphView后，它会有父级。但是，已知ListView多次在某些位置调用getView进行缓存。
似乎相同的视图被添加到多个父母，这反过来又会引发你得到的错误。在添加chartview之前，您可以尝试将其从父项中删除（如果存在）：
// Remove from parent (if exists)
ViewGroup parent = item.chartview.getParent();
if (parent != null) {
parent.removeView(item.chartview);
}
// Add to another parent
viewHolder.graphView.addView(item.chartview);
答案 1 :(得分：0)
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
myFragmentView = inflater.inflate(R.layout.dashboardlist, container, false);
而不是容器使用null （我不是一个机器怪人，但之前遇到过这个问题）