Java 具有两个文本视图的Android可扩展列表视图
我正在尝试创建一个自定义的可扩展列表视图,其中包含两个独立的文本视图。一个文本视图需要左对齐,另一个右对齐。有人能帮我吗 这是我的布局文件Java 具有两个文本视图的Android可扩展列表视图,java,android,expandablelistview,Java,Android,Expandablelistview,我正在尝试创建一个自定义的可扩展列表视图,其中包含两个独立的文本视图。一个文本视图需要左对齐,另一个右对齐。有人能帮我吗 这是我的布局文件 <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="55dip"
android:orientation="vertical" >
<TextView
android:id="@+id/lblListItem"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:textSize="17sp"
android:paddingTop="5dp"
android:paddingBottom="5dp"
android:paddingLeft="?android:attr/expandableListPreferredChildPaddingLeft" />
<TextView
android:id="@+id/date"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:paddingLeft="?android:attr/expandableListPreferredChildPaddingLeft"
android:text="@string/click"
android:textColor="@color/Red" />
</LinearLayout>
这是我的适配器类
public class ExpandableListAdapter extends BaseExpandableListAdapter {
private Context _context;
private List<String> _listDataHeader; // header titles
// child data in format of header title, child title
private HashMap<String, List<String>> _listDataChild;
public ExpandableListAdapter(Context context, List<String> listDataHeader,
HashMap<String, List<String>> listChildData) {
this._context = context;
this._listDataHeader = listDataHeader;
this._listDataChild = listChildData;
}
@Override
public Object getChild(int groupPosition, int childPosititon) {
return this._listDataChild.get(this._listDataHeader.get(groupPosition))
.get(childPosititon);
}
@Override
public long getChildId(int groupPosition, int childPosition) {
return childPosition;
}
@Override
public View getChildView(int groupPosition, final int childPosition,
boolean isLastChild, View convertView, ViewGroup parent) {
final String childText = (String) getChild(groupPosition, childPosition);
if (convertView == null) {
LayoutInflater infalInflater = (LayoutInflater) this._context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = infalInflater.inflate(R.layout.list_item, null);
}
TextView txtListChild = (TextView) convertView
.findViewById(R.id.lblListItem);
txtListChild.setText(childText);
return convertView;
}
@Override
public int getChildrenCount(int groupPosition) {
return this._listDataChild.get(this._listDataHeader.get(groupPosition))
.size();
}
@Override
public Object getGroup(int groupPosition) {
return this._listDataHeader.get(groupPosition);
}
@Override
public int getGroupCount() {
return this._listDataHeader.size();
}
@Override
public long getGroupId(int groupPosition) {
return groupPosition;
}
@Override
public View getGroupView(int groupPosition, boolean isExpanded,
View convertView, ViewGroup parent) {
String headerTitle = (String) getGroup(groupPosition);
if (convertView == null) {
LayoutInflater infalInflater = (LayoutInflater) this._context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = infalInflater.inflate(R.layout.list_group, null);
}
TextView lblListHeader = (TextView) convertView
.findViewById(R.id.lblListHeader);
lblListHeader.setTypeface(null, Typeface.BOLD);
lblListHeader.setText(headerTitle);
return convertView;
}
@Override
public boolean hasStableIds() {
return false;
}
@Override
public boolean isChildSelectable(int groupPosition, int childPosition) {
return true;
}
}
公共类ExpandableListAdapter扩展了BaseExpandableListAdapter{
私人语境(private Context)(私人语境);;
私有列表_listDataHeader;//头标题
//标题标题、子标题格式的子数据
私有HashMap_listDataChild;
公共ExpandableListAdapter(上下文、列表listDataHeader、,
HashMap listChildData){
这._context=context;
这。_listDataHeader=listDataHeader;
这。_listDataChild=listChildData;
}
@凌驾
公共对象getChild(int-groupPosition、int-ChildPosition){
返回此。_listDataChild.get(此。_listDataHeader.get(groupPosition))
.get(childpositionon);
}
@凌驾
公共长getChildId(int-groupPosition,int-childPosition){
返回子位置;
}
@凌驾
公共视图getChildView(int groupPosition,final int childPosition,
布尔值isLastChild、视图转换视图、视图组父级){
最终字符串childText=(字符串)getChild(groupPosition,childPosition);
if(convertView==null){
LayoutInflater infalInflater=(LayoutInflater)this.\u上下文
.getSystemService(上下文布局\充气机\服务);
convertView=infalInflater.充气(R.layout.list_项,空);
}
TextView txtListChild=(TextView)convertView
.findviewbyd(R.id.lblListItem);
setText(childText);
返回视图;
}
@凌驾
公共整数getChildrenCount(整数组位置){
返回此。_listDataChild.get(此。_listDataHeader.get(groupPosition))
.size();
}
@凌驾
公共对象getGroup(int-groupPosition){
返回此。\u listDataHeader.get(groupPosition);
}
@凌驾
public int getGroupCount(){
返回此值。_listDataHeader.size();
}
@凌驾
公共长getGroupId(int-groupPosition){
返回组位置;
}
@凌驾
公共视图getGroupView(int-groupPosition,布尔值isExpanded,
视图(视图、视图组父级){
字符串头文件=(字符串)getGroup(groupPosition);
if(convertView==null){
LayoutInflater infalInflater=(LayoutInflater)this.\u上下文
.getSystemService(上下文布局\充气机\服务);
convertView=infalInflater.充气(R.layout.list_组,空);
}
TextView lblistheader=(TextView)convertView
.findviewbyd(R.id.lblistheader);
lblListHeader.setTypeface(null,Typeface.BOLD);
lblListHeader.setText(标题);
返回视图;
}
@凌驾
公共布尔表ID(){
返回false;
}
@凌驾
公共布尔值isChildSelectable(int-groupPosition,int-childPosition){
返回true;
}
}
这是我的主要活动
public class HomeFragment extends Fragment {
public HomeFragment(){}
TextView Username;
TextView Acct, Paid, Email;
ExpandableListAdapter listAdapter;
ExpandableListView expListView;
List<String> listDataHeader;
HashMap<String, List<String>> listDataChild;
List<String> horse;
List<String> owner ;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_home, container, false);
expListView = (ExpandableListView) rootView.findViewById(R.id.list);
// preparing list data
listDataHeader = new ArrayList<String>();
listDataChild = new HashMap<String, List<String>>();
// Adding child data
listDataHeader.add("Rider and Trainer Info");
listDataHeader.add("Horse and Owner Info");
// Adding child data
horse = new ArrayList<String>();
horse.add("horse");
owner = new ArrayList<String>();
listDataChild.put(listDataHeader.get(0), horse); // Header, Child data
listDataChild.put(listDataHeader.get(1), owner);
Context context = getActivity().getApplicationContext();
listAdapter = new ExpandableListAdapter(context, listDataHeader, listDataChild);
// setting list adapter
expListView.setAdapter(listAdapter);
final GlobalClass globalVariable = (GlobalClass) getActivity().getApplicationContext();
String Name = globalVariable.getName();
String acct = globalVariable.getUsersid();
String paid = globalVariable.getPaid();
String email = globalVariable.getEmail();
Username = (TextView)rootView.findViewById(R.id.textView2);
Acct = (TextView)rootView.findViewById(R.id.textView4);
Paid = (TextView)rootView.findViewById(R.id.textView3);
Email = (TextView)rootView.findViewById(R.id.textView5);
Username.setText("Username: "+ Name);
Acct.setText("Acct # "+ acct);
Paid.setText("Expired On: "+ paid);
Email.setText("Email: " + email);
return rootView;
}
}
公共类HomeFragment扩展了片段{
公共HomeFragment(){}
文本视图用户名;
TextView账户、付费、电子邮件;
可扩展列表适配器;
ExpandableListView解释视图;
列表列表数据头;
HashMapListDataChild;
罗列马;
名单所有人;
@凌驾
创建视图上的公共视图(布局、充气机、视图组容器、,
Bundle savedInstanceState){
视图根视图=充气机。充气(R.layout.fragment\u home,container,false);
expListView=(ExpandableListView)rootView.findViewById(R.id.list);
//准备列表数据
listDataHeader=新的ArrayList();
listDataChild=newHashMap();
//添加子数据
listDataHeader.add(“骑手和教练信息”);
添加(“马和主人信息”);
//添加子数据
horse=newarraylist();
马。加上(“马”);
所有者=新的ArrayList();
listDataChild.put(listDataHeader.get(0),horse);//头,子数据
listDataChild.put(listDataHeader.get(1),所有者);
上下文上下文=getActivity().getApplicationContext();
listAdapter=新的ExpandableListAdapter(上下文、listDataHeader、listDataChild);
//设置列表适配器
expListView.setAdapter(listAdapter);
final GlobalClass globalVariable=(GlobalClass)getActivity().getApplicationContext();
字符串名称=globalVariable.getName();
字符串acct=globalVariable.getUsersid();
字符串paid=globalVariable.getPaid();
字符串email=globalVariable.getEmail();
Username=(TextView)rootView.findViewById(R.id.textView2);
Acct=(TextView)rootView.findViewById(R.id.textView4);
Paid=(TextView)rootView.findViewById(R.id.textView3);
Email=(TextView)rootView.findViewById(R.id.textView5);
Username.setText(“用户名:+Name”);
会计科目设置文本(“会计科目”+Acct);
已支付。setText(“到期日:“+已支付”);
Email.setText(“Email:+Email”);
返回rootView;
}
}
我希望输出布局在每一行上都像这样
示例文本日期尝试以下操作:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="55dip"
android:padding="10dp"
android:orientation="horizontal"
android:weightSum="2">
<TextView
android:id="@+id/lblListItem"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:gravity="center"
android:text="lblListItem"
android:textSize="17sp" />
<TextView
android:id="@+id/date"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:gravity="center"
android:text="Test"
android:textSize="17sp" />
</LinearLayout>
如果您改用RelativeLayout。您可以使用layout_align(左/右)xml属性将文本视图左/右对齐 像这样
android:layout_alignRight = "true"
只需从布局中找到另一个视图
我知道如何对齐文本视图。但是我怎么能编程呢。用数组加载listview,更新两个textview。对不起,我想我不明白你的意思。事实上,我认为我不理解这个问题。查看您的代码,您已经在更新一个TextView。你为什么不用同样的方式更新另一个呢
@Override
public View getGroupView(int groupPosition, boolean isExpanded,
View convertView, ViewGroup parent) {
String headerTitle = (String) getGroup(groupPosition);
if (convertView == null) {
LayoutInflater infalInflater = (LayoutInflater) this._context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = infalInflater.inflate(R.layout.list_group, null);
}
TextView lblListHeader = (TextView) convertView
.findViewById(R.id.lblListHeader);
lblListHeader.setTypeface(null, Typeface.BOLD);
lblListHeader.setText(headerTitle);
TextView lblListDate = (TextView) convertView
.findViewById(R.id.lblListDate);
lblListHeader.setTypeface(null, Typeface.BOLD);
lblListHeader.setText(date);
return convertView;
}