新扩展的ListView高度可定制 [英] new expandable listview highly customizable
本文介绍了新扩展的ListView高度可定制的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我需要认识到类似的东西的图片：
你怎么认为要认识到？ 我怎样才能做一个动画的子菜单的崩溃？如果我设置走了，然后子菜单时的onClick上的头衔，我设置的能见度=可视突然出现......我想要的东西的动画在Android的风格。
你有什么建议怎么样？我想实现一个对象每次我需要认识到类似的东西时候istantiate。
解决方案
CustomListViewDemo.java
公共类CustomListViewDemo扩展ListActivity {
私人EfficientAdapter ADAP;
私有静态字符串[]数据=新的String [] {0，1，2，3，4};
@覆盖
公共无效的onCreate（包savedInstanceState）{
super.onCreate（savedInstanceState）;
requestWindowFeature（Window.FEATURE_NO_TITLE）;
的setContentView（R.layout.main）;
ADAP =新EfficientAdapter（本）;
setListAdapter（ADAP）;
}
@覆盖
保护无效onListItemClick（ListView的L，视图V，INT位置，长的id）{
// TODO自动生成方法存根
super.onListItemClick（L，V，位置ID）;
Toast.makeText（这一点，点击 - +将String.valueOf（位置），Toast.LENGTH_SHORT）.show（）;
}
公共静态类EfficientAdapter扩展了BaseAdapter实现过滤的{
私人LayoutInflater mInflater;
私人位图mIcon1;
私人上下文的背景下;
INT firstpos = 0;
公共EfficientAdapter（上下文的背景下）{
//缓存的LayoutInflate避免询问，每次一个新的。
mInflater = LayoutInflater.from（上下文）;
this.context =背景;
}
公共查看getView（最终诠释的立场，观点convertView，ViewGroup中父）{
ViewHolder持有人;
如果（convertView == NULL）{
convertView = mInflater.inflate（R.layout.adaptor_content，NULL）;
持有人=新ViewHolder（）;
holder.sp =（微调）convertView.findViewById（R.id.spinner1）;
holder.ArrayAdapter_sp =新ArrayAdapter（parent.getContext（），android.R.layout.simple_spinner_item，数据）;
holder.ArrayAdapter_sp.setDropDownViewResource（android.R.layout.simple_spinner_dropdown_item）;
holder.sp.setAdapter（holder.ArrayAdapter_sp）;
holder.sp.setOnItemSelectedListener（新OnItemSelectedListener（）
{
私人诠释POS =位置;
@覆盖
公共无效onItemSelected（适配器视图＆LT;＆GT;为arg0，查看ARG1，
INT磷，长ARG3）
{
// TODO自动生成方法存根
Toast.makeText（背景下，选择微调+将String.valueOf（POS）+与价值ID+ P，Toast.LENGTH_SHORT）.show（）;
}
@覆盖
公共无效onNothingSelected（适配器视图＆LT;＆GT;为arg0）
{
// TODO自动生成方法存根
}
}）;
convertView.setTag（保持器）;
} 其他 {
支架=（ViewHolder）convertView.getTag（）;
}
返回convertView;
}
静态类ViewHolder
{
微调SP;
ArrayAdapter ArrayAdapter_sp;
}
@覆盖
公共过滤用getFilter（）{
// TODO自动生成方法存根
返回null;
}
@覆盖
众长getItemId（INT位置）{
// TODO自动生成方法存根
返回0;
}
@覆盖
公众诠释getCount将（）{
// TODO自动生成方法存根
返回data.length;
}
@覆盖
公共对象的getItem（INT位置）{
// TODO自动生成方法存根
返回数据[位置]
}
}
}
-------------------------------------------------- --------------------------------
adaptor_content.xml
＆LT; XML版本=1.0编码=UTF-8＆GT？;
＆LT; LinearLayout中的xmlns：机器人=http://schemas.android.com/apk/res/android
机器人：ID =@ + ID /订单项
机器人：layout_width =WRAP_CONTENT
机器人：layout_height =WRAP_CONTENT
机器人：重力=center_vertical＆GT;
＆LT;微调
机器人：ID =@ + ID / spinner1
机器人：layout_width =314dp
机器人：layout_height =WRAP_CONTENT/＆GT;
＆LT; / LinearLayout中＆GT;
-------------------------------------------------- ------------------------
main.xml中
＆LT; XML版本=1.0编码=UTF-8＆GT？;
＆LT; RelativeLayout的的xmlns：机器人=http://schemas.android.com/apk/res/android
机器人：layout_height =FILL_PARENT机器人：layout_width =FILL_PARENT
＆GT;
＆LT;的ListView
机器人：ID =@ + ID / Android的：清单
机器人：layout_width =FILL_PARENT
机器人：layout_height =FILL_PARENT
机器人：layout_marginBottom =60dip
机器人：layout_marginTop =10dip
机器人：cacheColorHint =＃00000000
机器人：drawSelectorOnTop =FALSE/＆GT;
＆LT; / RelativeLayout的＆GT;
I need to realize something like that in the picture: "TITLE" rectangle makes a list of object and when I click on one of these objects is opened a "sub menu" (where there are ELEMENT #1, 2 etc.). The system is similar to a expandable listview, but more customizable.
How do you suggest to realize that? How can i do an animation for the collapse of the sub menu? If I set sub menu with gone and then when onClick on title I set that with visibility=visible suddenly appears...I'd like something of animated in Android style.
What do you suggest? I was thinking to realize an object to istantiate each time i need to realize something like that.
解决方案
CustomListViewDemo.java
public class CustomListViewDemo extends ListActivity {
private EfficientAdapter adap;
private static String[] data = new String[] { "0", "1", "2", "3", "4" };
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.main);
adap = new EfficientAdapter(this);
setListAdapter(adap);
}
@Override
protected void onListItemClick(ListView l, View v, int position, long id) {
// TODO Auto-generated method stub
super.onListItemClick(l, v, position, id);
Toast.makeText(this, "Click-" + String.valueOf(position), Toast.LENGTH_SHORT).show();
}
public static class EfficientAdapter extends BaseAdapter implements Filterable {
private LayoutInflater mInflater;
private Bitmap mIcon1;
private Context context;
int firstpos=0;
public EfficientAdapter(Context context) {
// Cache the LayoutInflate to avoid asking for a new one each time.
mInflater = LayoutInflater.from(context);
this.context = context;
}
public View getView(final int position, View convertView, ViewGroup parent) {
ViewHolder holder;
if (convertView == null) {
convertView = mInflater.inflate(R.layout.adaptor_content, null);
holder = new ViewHolder();
holder.sp = (Spinner) convertView.findViewById(R.id.spinner1);
holder.ArrayAdapter_sp = new ArrayAdapter(parent.getContext(),android.R.layout.simple_spinner_item,data);
holder.ArrayAdapter_sp.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
holder.sp.setAdapter( holder.ArrayAdapter_sp);
holder.sp.setOnItemSelectedListener(new OnItemSelectedListener()
{
private int pos = position;
@Override
public void onItemSelected(AdapterView<?> arg0, View arg1,
int p, long arg3)
{
// TODO Auto-generated method stub
Toast.makeText(context, "select spinner " + String.valueOf(pos)+" with value ID "+p, Toast.LENGTH_SHORT).show();
}
@Override
public void onNothingSelected(AdapterView<?> arg0)
{
// TODO Auto-generated method stub
}
});
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
return convertView;
}
static class ViewHolder
{
Spinner sp;
ArrayAdapter ArrayAdapter_sp;
}
@Override
public Filter getFilter() {
// TODO Auto-generated method stub
return null;
}
@Override
public long getItemId(int position) {
// TODO Auto-generated method stub
return 0;
}
@Override
public int getCount() {
// TODO Auto-generated method stub
return data.length;
}
@Override
public Object getItem(int position) {
// TODO Auto-generated method stub
return data[position];
}
}
}
----------------------------------------------------------------------------------
adaptor_content.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/lineItem"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center_vertical" >
<Spinner
android:id="@+id/spinner1"
android:layout_width="314dp"
android:layout_height="wrap_content" />
</LinearLayout>
--------------------------------------------------------------------------
main.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_height="fill_parent" android:layout_width="fill_parent"
>
<ListView
android:id="@+id/android:list"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_marginBottom="60dip"
android:layout_marginTop="10dip"
android:cacheColorHint="#00000000"
android:drawSelectorOnTop="false" />
</RelativeLayout>
这篇关于新扩展的ListView高度可定制的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
查看全文
