android中ListView控件&&onItemClick点击事件
2013-07-11 15:14
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listView= (ListView) this.findViewById(R.id.listview);
List<HashMap<String,String>>data = new ArrayList<HashMap<String,String>>();
UserService us = new UserService(this);
List<User> users = us.getScrollDate(0, 10);
for(User u : users){
HashMap<String,String> map = new HashMap<String, String>();
map.put("userid", String.valueOf(u.getUserid()));
map.put("name", u.getName());
map.put("age", String.valueOf(u.getAge()));
data.add(map);
}
SimpleAdapter adapter = new SimpleAdapter(this,data,R.layout.useritem,new String[]{"userid","name","age"},new int[]{R.id.userid,R.id.name,R.id.age});
listView.setAdapter(adapter);
listView.setOnItemClickListener(new OnItemClickListener(){
@SuppressWarnings("unchecked")
@Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
ListView listView = (ListView)parent;
HashMap<String, String> map = (HashMap<String, String>) listView.getItemAtPosition(position);
String userid = map.get("userid");
String name = map.get("name");
String age = map.get("age");
Toast.makeText(SQLiteCRUDActivity.this, userid +" , "+ name +" , "+ age ,Toast.LENGTH_LONG).show();
}
});
另一个例子:
public class ProductListAdapter extends BaseAdapter {
private Context context;
private List<Product> listData;
public ProductListAdapter(Context context) {
this.context = context;
}
public void setData(List<Product> dataList) {
this.listData = dataList;
}
@Override
public int getCount() {
return listData.size();
}
@Override
public Product getItem(int position) {
return listData.get(position);
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(int posotion, View convertView, ViewGroup arg2) {
。。。。。
}
}
@Override
public void onItemClick(AdapterView<?> parent, View view, int position,
long id) {
// TODO Auto-generated method stub
Product data = (Product)parent.getItemAtPosition(position);
Log.v("itemclick",data.goods_id);
}
方法介绍:
Added in API level 1
Gets the data associated with the specified position in the list.
Parameters
Returns
The data associated with the specified position in the list
List<HashMap<String,String>>data = new ArrayList<HashMap<String,String>>();
UserService us = new UserService(this);
List<User> users = us.getScrollDate(0, 10);
for(User u : users){
HashMap<String,String> map = new HashMap<String, String>();
map.put("userid", String.valueOf(u.getUserid()));
map.put("name", u.getName());
map.put("age", String.valueOf(u.getAge()));
data.add(map);
}
SimpleAdapter adapter = new SimpleAdapter(this,data,R.layout.useritem,new String[]{"userid","name","age"},new int[]{R.id.userid,R.id.name,R.id.age});
listView.setAdapter(adapter);
listView.setOnItemClickListener(new OnItemClickListener(){
@SuppressWarnings("unchecked")
@Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
ListView listView = (ListView)parent;
HashMap<String, String> map = (HashMap<String, String>) listView.getItemAtPosition(position);
String userid = map.get("userid");
String name = map.get("name");
String age = map.get("age");
Toast.makeText(SQLiteCRUDActivity.this, userid +" , "+ name +" , "+ age ,Toast.LENGTH_LONG).show();
}
});
另一个例子:
public class ProductListAdapter extends BaseAdapter {
private Context context;
private List<Product> listData;
public ProductListAdapter(Context context) {
this.context = context;
}
public void setData(List<Product> dataList) {
this.listData = dataList;
}
@Override
public int getCount() {
return listData.size();
}
@Override
public Product getItem(int position) {
return listData.get(position);
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(int posotion, View convertView, ViewGroup arg2) {
。。。。。
}
}
@Override
public void onItemClick(AdapterView<?> parent, View view, int position,
long id) {
// TODO Auto-generated method stub
Product data = (Product)parent.getItemAtPosition(position);
Log.v("itemclick",data.goods_id);
}
方法介绍:
AdapterView的方法
public Object getItemAtPosition (int
position)
Added in API level 1Gets the data associated with the specified position in the list.
Parameters
position | Which data to get |
---|
The data associated with the specified position in the list
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