Question

编辑：不要将ListView放在ExpandableView中。这是第一个问题。第二个问题是我的图表的高度总是为零。（详见http://developer.android.com/guide/topics/ui/how-android-draws.html）这些是问题。对于ListView，我只使用TextViews并使用for循环将值放入其中。对于图形问题，我检查设备的像素值和setLayoutParameters，具体取决于它是PORTRAIT还是LANDSCAPE.Here是我用于它的代码。它给出了我将使用的设备的良好值，但可能有更好的解决方案。

int orientation = getResources().getConfiguration().orientation;
DisplayMetrics metrics = new DisplayMetrics();
getActivity().getWindowManager().getDefaultDisplay().getMetrics(metrics);
int height=metrics.heightPixels;
int width = metrics.widthPixels;
if (orientation == 1) {
    SGV.setLayoutParams(new LayoutParams(width, height/4));
} else {
    SGV.setLayoutParams(new LayoutParams(width, height/2));
}

我正在实现一个ExpandableListView，它有两个不同类型的子节点，它们是一个视图和一个listview。我使用两个不同的布局文件，所以我有2个子布局，它们是child_list.xml和child_img.xml

问题在于，如果我没有设置布局宽度和高度，它会给出正常的宽度，但是要查看高度和正常宽度，并且列表视图的高度不够，所以我只能看到listview的一个元素。但是如果我设置了LayoutParameters为（1200,400）它显示所有listview元素。

如果没有设置高度或宽度，我如何显示所有列表元素？

主要布局

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/distance_fragment_layout"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical" >

<ExpandableListView
    android:id="@+id/expandableList"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:groupIndicator="@null" >
</ExpandableListView> 
</LinearLayout>

Group.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >

<TextView
    android:id="@+id/groupName"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="TextView"
    android:textSize="50sp" />

</LinearLayout>

children_list.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical" >

  <ListView
        android:id="@+id/child_listView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
         >
    </ListView>
</LinearLayout>

children_list_txt

<LinearLayout
    android:layout_width="wrap_content"
    android:layout_height="wrap_content" >

    <TextView
    android:id="@+id/distance_list_home"
    android:layout_width="200dp"
    android:layout_height="50dp"
    android:gravity="right|center_vertical"
    android:textColor="#ffffff"
    android:textSize="18sp" />

<TextView
    android:id="@+id/distance_list_away"
    android:layout_width="200dp"
    android:layout_height="50dp"
    android:gravity="left|center_vertical"
    android:textColor="#ffffff"
    android:textSize="18sp" />

</LinearLayout>

</LinearLayout>

MyExpandableListViewAdapter

public class ExpandableListItems extends BaseExpandableListAdapter {
    private Context context;
    private ArrayList<String> mParent;

    public ExpandableListItems(Context context, ArrayList<String> parent) {
        mParent = parent;
        this.context = context;
    }


    @Override
    public int getGroupCount() {
        return mParent.size();
    }

    @Override
    public int getChildrenCount(int i) {
        return 1;
    }

    @Override
    public String getGroup(int i) {
        return mParent.get(i);
    }

    @Override
    public Object getChild(int i, int i1) {
        return mParent.get(i);
    }

    @Override
    public long getGroupId(int i) {
        return i;
    }

    @Override
    public long getChildId(int i, int i1) {
        return i1;
    }

    @Override
    public boolean hasStableIds() {
        return true;
    }
    @Override
    public boolean isChildSelectable(int i, int i1) {
        return true;
    }

    @Override
    public void registerDataSetObserver(DataSetObserver observer) {
        super.registerDataSetObserver(observer);
    }


    @Override
    public View getChildView(int groupPosition, int childPosition,
            boolean isLastChild, View convertView, ViewGroup parent) {
        LayoutInflater inflater = (LayoutInflater) context
                .getSystemService(Context.LAYOUT_INFLATER_SERVICE);

        if(groupPosition == 1){
        convertView = inflater.inflate(R.layout.distance_child_img, null);
        ViewGroup graphArea = (ViewGroup)convertView.findViewById(R.id.testw);
        SpeedGraphView SGV = new                                                    SpeedGraphView(getActivity().getBaseContext());
            SGV.setArrays(homefirstHalfSpeedArray,homesecondHalfSpeedArray,Global.app.match.homeTeam.getTeamName());
            SGV.setPlayerArrays(awayfirstHalfSpeedArray,awaysecondHalfSpeedArray,Global.app.match.awayTeam.getTeamName());
            SGV.setLayoutParams(new LayoutParams(1200, 400));
            graphArea.addView(SGV);

        }else{
            convertView = LayoutInflater.from(getActivity()).inflate(R.layout.distance_child_list, null);

             ListView listV = (ListView) convertView.findViewById(R.id.child_listView);
             ListAdapter adp = new ListAdapter(getActivity());
             adp.add(new ListItem("Deneme", "Away", 200, 100));
             adp.add(new ListItem("asdas", "Away", 200, 100));
             listV.setAdapter(adp);
            // listV.setLayoutParams(new LinearLayout.LayoutParams(1200,500));
        }
        return convertView;
    }


    @Override
    public View getGroupView(int groupPosition, boolean isExpanded,
            View convertView, ViewGroup parent) {
        LayoutInflater inflater = (LayoutInflater) context
                .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        convertView = inflater.inflate(R.layout.distance_group, null);
        TextView tx = (TextView)convertView.findViewById(R.id.groupName);
        tx.setText(ExpListItems.get(groupPosition));
        return convertView;
    }
}

ExpandableListView子高度为零或不够

0 个答案: