Android ExpandableListView子高度为零或不够
编辑:不要将ListView放在可展开视图中。这是第一个问题。第二个问题是我的图表的高度始终为零。(详细查看) 这些就是问题所在。对于ListView,我只使用文本视图,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并设置LayoutParameters,这取决于它是纵向还是横向。这是我用于它的代码。它在我将使用的设备上提供了良好的值,但可能有更好的解决方案Android ExpandableListView子高度为零或不够,android,layout,height,expandablelistview,expandablelistadapter,Android,Layout,Height,Expandablelistview,Expandablelistadapter,编辑:不要将ListView放在可展开视图中。这是第一个问题。第二个问题是我的图表的高度始终为零。(详细查看) 这些就是问题所在。对于ListView,我只使用文本视图,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并设置LayoutParameters,这取决于它是纵向还是横向。这是我用于它的代码。它在我将使用的设备上提供了良好的值,但可能有更好的解决方案 int orientation = getResources().getConfiguration().orientat
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视图,一个是视图,一个是listview。我使用两个不同的布局文件,所以我有两个子布局,分别是child_list.xml和child_img.xml
问题是,如果我不设置布局宽度和高度,它会为视图提供正常宽度,但为0高度,为listview提供正常宽度,而为listview提供的高度不够,因此我只能看到listview的一个元素。但是,如果我将LayoutParameters设置为(1200400),它会显示所有listview元素
如果不设置高度或宽度,如何显示所有列表元素
主布局
<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>
儿童列表
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;
}
}
公共类ExpandableListItems扩展了BaseExpandableListAdapter{
私人语境;
私人律师事务所;
公共可扩展列表项(上下文、ArrayList父级){
mParent=父母;
this.context=上下文;
}
@凌驾
public int getGroupCount(){
返回mParent.size();
}
@凌驾
公共整数getChildrenCount(整数i){
返回1;
}
@凌驾
公共字符串getGroup(int i){
返回mParent.get(i);
}
@凌驾
公共对象getChild(inti,inti1){
返回mParent.get(i);
}
@凌驾
公共长getGroupId(inti){
返回i;
}
@凌驾
公共长getChildId(inti,inti1){
返回i1;
}
@凌驾
公共布尔表ID(){
返回true;
}
@凌驾
公共布尔值是可选择的(int i,int i1){
返回true;
}
@凌驾
公共无效注册表DataSetObserver(DataSetObserver observer){
超级注册数据集观察者(观察者);
}
@凌驾
公共视图getChildView(int-groupPosition、int-childPosition、,
布尔值isLastChild、视图转换视图、视图组父级){
LayoutFlater充气器=(LayoutFlater)上下文
.getSystemService(上下文布局\充气机\服务);
if(groupPosition==1){
convertView=充气机。充气(R.布局。距离\u子对象\u img,空);
ViewGroup graphArea=(ViewGroup)convertView.findViewById(R.id.testw);
SpeedGraphView SGV=新的SpeedGraphView(getActivity().getBaseContext());
setArray(homefirstHalfSpeedArray、homesecondHalfSpeedArray、Global.app.match.homeTeam.getTeamName());
setPlayerArray(awayfirstHalfSpeedArray、awaysecondHalfSpeedArray、Global.app.match.awayTeam.getTeamName());
SGV.setLayoutParams(新的LayoutParams(1200400));
graphArea.addView(SGV);
}否则{
convertView=LayoutInflater.from(getActivity()).flate(R.layout.distance\u child\u list,null);
ListView listV=(ListView)convertView.findViewById(R.id.child\u ListView);
ListAdapter adp=新的ListAdapter(getActivity());
adp.add(新列表项(“Deneme”,“Away”,200100));
adp.add(新列表项(“asdas”,“离开”,200,100));
listV.setAdapter(adp);
//listV.setLayoutParams(新的LinearLayout.LayoutParams(1200500));
}
返回视图;
}
@凌驾
公共视图getGroupView(int-groupPosition,布尔值isExpanded,
视图(视图、视图组父级){
LayoutFlater充气器=(LayoutFlater)上下文
.getSystemService(上下文布局\充气机\服务);
convertView=充气机。充气(R.layout.distance_组,空);
TextView tx=(TextView)convertView.findViewById(R.id.groupName);
tx.setText(ExpListItems.get(groupPosition));
返回视图;
}
}
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;
}
}