如何设置OnitemClick自定义列表视图 [英] How to set OnitemClick in custom listview
本文介绍了如何设置OnitemClick自定义列表视图的处理方法，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
我使用的扩展底座适配器列表视图适配器创建一个列表视图。
它工作正常。但我需要onitemClick侦听器添加到列表视图，当我点击列表项它去到另一个活动，与listitem.how一起，我们可以做到这一点？
这是我的code在ListView适配器
公共类listviewAdapter延伸BaseAdapter {
字符串FIRST_COLUMN = Constant.FIRST_COLUMN;
字符串是second_column = Constant.SECOND_COLUMN;
字符串THIRD_COLUMN = Constant.THIRD_COLUMN;
字符串FOURTH_COLUMN = Constant.FOURTH_COLUMN;
公众的ArrayList＆LT;＆HashMap的LT;字符串，字符串＆GT;＆GT;清单;
活动活动; 公共listviewAdapter（活动活动，ArrayList的＆LT;＆HashMap的LT;字符串，字符串＆GT;＆GT;名单）{
超（）;
this.activity =活动;
this.list =清单;
} @覆盖
公众诠释的getCount（）{
// TODO自动生成方法存根
返回则为list.size（）;
} @覆盖
公共对象的getItem（INT位置）{
// TODO自动生成方法存根
返回list.get（位置）;
} @覆盖
众长getItemId（INT位置）{
// TODO自动生成方法存根
返回0;
} 私有类ViewHolder {
TextView的txtFirst;
TextView的txtSecond;
TextView的txtThird;
TextView的txtFourth;
}
@覆盖
公共查看getView（INT位置，查看convertView，父母的ViewGroup）{
// TODO自动生成方法存根
查看VI = convertView;
// TODO自动生成方法存根
ViewHolder持有人;
LayoutInflater吹气= activity.getLayoutInflater（）; 如果（convertView == NULL）
{
convertView = inflater.inflate（R.layout.requestcard_columnsdetails，NULL）;
持有人=新ViewHolder（）;
holder.txtFirst =（TextView中）convertView.findViewById（R.id.date）;
holder.txtSecond =（TextView中）convertView.findViewById（R.id.from）;
holder.txtThird =（TextView中）convertView.findViewById（R.id.to）;
holder.txtFourth =（TextView中）convertView.findViewById（R.id.time）;
convertView.setTag（保持器）;
}
其他
{
支架=（ViewHolder）convertView.getTag（）;
} HashMap的＆LT;字符串，字符串＆GT;地图= list.get（位置）;
holder.txtFirst.setText（map.get（FIRST_COLUMN））;
holder.txtSecond.setText（map.get（是second_column））;
holder.txtThird.setText（map.get（THIRD_COLUMN））;
holder.txtFourth.setText（map.get（FOURTH_COLUMN））; 返回convertView;
}
}
和我居住使用的主要活动列表项
INT A，B;
名单=新的ArrayList＆LT;＆HashMap的LT;字符串，字符串＆GT;＆GT;（）;
用于：（a = 0;一个与所述; outputString.length;一个++）{
HashMap的＆LT;字符串，字符串＆GT; temp1中=新的HashMap＆LT;字符串，字符串＆GT;（）;
temp1.put（FIRST_COLUMN，outputString [一个] [0]）;
temp1.put（是second_column，outputString [一个] [1]）;
temp1.put（THIRD_COLUMN，outputString [一个] [4]）;
temp1.put（FOURTH_COLUMN，outputString [一个] [5]）;
list.add（temp1目录）;
}
listviewAdapter适配器=新listviewAdapter（这一点，清单）;
lview.setAdapter（适配器）;
解决方案
随着列表项一起
如果你想获得从列表项的一些数据，只需要使用
parent.getItemAtPosition（位置）这是已经提及的监听器里。这将返回相应的对象，你可以执行与进一步的行动。的HashMap＆LT;字符串，字符串＆GT;地图=（HashMap的＆LT;字符串，字符串＆GT;）parent.getItemAtPosition（位置）;
串的一个= map.get（钥匙）;
String中的两个= map.get（KEY2）; 接下来意向=新意图（FirstActivity.this，NextActivity.class）;
next.putExtra（一，一个）;
next.putExtra（二，二）;
startActivity（下）;得到它在你的第二个活动：
捆绑额外= getIntent（）getExtras（）。
串的一个= extras.getStringExtra（1）;
String中的两个= extras.getStringExtra（二）;I created a listview using listview adapter that extends base adapter.
It works fine. but I need to add onitemClick Listener to listview, when I click a list item it go to another activity ,along with the listitem.how can we do this ?
This is my code in the listview adapter
public class listviewAdapter extends BaseAdapter{ String FIRST_COLUMN = Constant.FIRST_COLUMN; String SECOND_COLUMN = Constant.SECOND_COLUMN; String THIRD_COLUMN = Constant.THIRD_COLUMN; String FOURTH_COLUMN = Constant.FOURTH_COLUMN; public ArrayList<HashMap<String,String>> list; Activity activity; public listviewAdapter(Activity activity, ArrayList<HashMap<String,String>> list) { super(); this.activity = activity; this.list = list; } @Override public int getCount() { // TODO Auto-generated method stub return list.size(); } @Override public Object getItem(int position) { // TODO Auto-generated method stub return list.get(position); } @Override public long getItemId(int position) { // TODO Auto-generated method stub return 0; } private class ViewHolder { TextView txtFirst; TextView txtSecond; TextView txtThird; TextView txtFourth; } @Override public View getView(int position, View convertView, ViewGroup parent) { // TODO Auto-generated method stub View vi=convertView; // TODO Auto-generated method stub ViewHolder holder; LayoutInflater inflater = activity.getLayoutInflater(); if (convertView == null) { convertView = inflater.inflate(R.layout.requestcard_columnsdetails, null); holder = new ViewHolder(); holder.txtFirst = (TextView) convertView.findViewById(R.id.date); holder.txtSecond = (TextView) convertView.findViewById(R.id.from); holder.txtThird = (TextView) convertView.findViewById(R.id.to); holder.txtFourth = (TextView) convertView.findViewById(R.id.time); convertView.setTag(holder); } else { holder = (ViewHolder) convertView.getTag(); } HashMap<String, String> map = list.get(position); holder.txtFirst.setText(map.get(FIRST_COLUMN)); holder.txtSecond.setText(map.get(SECOND_COLUMN)); holder.txtThird.setText(map.get(THIRD_COLUMN)); holder.txtFourth.setText(map.get(FOURTH_COLUMN)); return convertView; } }And I populated list items in the main activity using
int a,b; list = new ArrayList<HashMap<String,String>>(); for ( a=0; a<outputString.length;a++){ HashMap<String,String> temp1 = new HashMap<String,String>(); temp1.put( FIRST_COLUMN,outputString[a][0]); temp1.put(SECOND_COLUMN, outputString[a][1]); temp1.put(THIRD_COLUMN, outputString[a][4]); temp1.put(FOURTH_COLUMN, outputString[a][5]); list.add(temp1); } listviewAdapter adapter = new listviewAdapter(this, list); lview.setAdapter(adapter);
解决方案along with the listitem
if you want to get some data from the ListItem, just use
parent.getItemAtPosition(position)inside the listener which was already mentioned. This will return a correspondingObjectthat you can perform further actions withHashMap<String, String> map = (HashMap<String, String>) parent.getItemAtPosition(position); String one = map.get("key"); String two = map.get("key2"); Intent next = new Intent(FirstActivity.this, NextActivity.class); next.putExtra("One", one); next.putExtra("Two", two); startActivity(next);Get it in your second Activity:
Bundle extras = getIntent().getExtras(); String one = extras.getStringExtra("One"); String two = extras.getStringExtra("Two");
这篇关于如何设置OnitemClick自定义列表视图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
