itemClick_course

onListItemClick onItemSelected 请问下这2个区别在哪里到底是相应什么时间的

Extjs4中itemdblclick与cellclick事件的问题_course

今天遇到一个问题，就是在使用Extjs4时，利用控制器去监听了itemdblclick事件，然后又监听了cellclick事件，但这样的话双击事件控制器就失效了，而cellclick事件监听正常；我尝

listview 中的 itemclick 事件_course

有这么一个表: 姓名 年龄 张三 18 李四 20 现在在 itemclick事件中写如下代码: Me.lbl(0).Caption = Me.ListView1.SelectedItem.Text

listview中itemclick方法的使用~~_course

listView 显示 如下的格式 如下的 格式 a1 a2 a3 a4 b1 b2 b3 b4 c1 c2 c3 c4 请问用listview_itemclick如何获得a1 a2 a3 a4（或者

listview点击listitem触发itemclick事件后，这个item为什么一直跟着光标了？_course

问题如下：窗体有一个listview控件，一个imagelist控件，form引导后已经添加了item到listview中，触发itemclick事件，正常，问题就是单击完一个item完成itemcl

List View 上的 Item Click 事件_course

我设置了List view，在Linear 布局中有一个按钮。使用 Onlistitemclick 不能继承ListActivity，但我需要在list view中选择一个item 来打开另外一个视图，然后再添加SQLite DB 的内容。如何实现？ public class Contacts extends Activity implements OnClickListener { int NewContact_Request_Code = 1; Button newcontact; ListView listview; public static final String LOG_TAG = "Contacts"; int mInt = 0; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.contactview); // Set the content to contactview.xml // newcontact = NEW CONTACT button // listview = MyList List View newcontact = (Button) findViewById(R.id.baddcontact); listview = (ListView) findViewById(R.id.mylist); // Make a New Database DBContact info = new DBContact(this); // Open , get Information from database and close it info.open(); String[] data = info.queryAll(); info.close(); // listview = getListView(); listview.setTextFilterEnabled(true); // Display the names ArrayAdapter<String> adapter = new ArrayAdapter<String>(Contacts.this, android.R.layout.simple_list_item_1, data); listview.setAdapter(adapter); newcontact.setOnClickListener(this); } // @Override // protected void onListItemClick(ListView l, View v, int position, long id) // { // // TODO Auto-generated method stub // super.onListItemClick(l, v, position, id); // Intent viewintent = new Intent(Contacts.this, ViewContact.class); // String item = (String) getListAdapter().getItem(position); // viewintent.putExtra("name_clicked", item); // startActivity(viewintent); // // } public void onClick(View v) { // TODO Auto-generated method stub Intent newintent = new Intent(Contacts.this, AddNewContact.class); // start actiivity for result - to get the name of the new contact startActivityForResult(newintent, 0); } @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { // TODO Auto-generated method stub super.onActivityResult(requestCode, resultCode, data); // pass the value of the string via cursor and update the list } }

按钮按了有反应，可onItemClick却没执行到_course

  1.按钮按了有反应，可onItemClick却没执行到 2.无论按哪个按钮，都显示"你点击的标题是:苹果" ``` package com.example.exer; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map; import android.app.AlertDialog; import android.app.ListActivity; import android.content.Context; import android.content.DialogInterface; import android.os.Bundle; import android.util.Log; import android.view.LayoutInflater; import android.view.Menu; import android.view.MenuItem; import android.view.View; import android.view.View.OnClickListener; import android.view.ViewGroup; import android.widget.AdapterView; import android.widget.AdapterView.OnItemClickListener; import android.widget.BaseAdapter; import android.widget.Button; import android.widget.ImageView; import android.widget.ListView; import android.widget.TextView; import android.widget.Toast; public class MainActivity extends ListActivity { private static final String TAG = "MainActivity"; private List<Map<String, Object>> mdata; private int positio; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); //setContentView(R.layout.activity_main); ListView mListView=getListView(); mdata = data(); mListView.setAdapter(new MyAdapter(this,mdata)); mListView.setOnItemClickListener(new AdapterView.OnItemClickListener() { @Override public void onItemClick(AdapterView<?> l, View v, int position, long id) { Log.i(TAG, (String)mdata.get(position).get("title")); Toast.makeText(MainActivity.this, (String)mdata.get(position).get("title"), 1000).show(); } }); } class MyAdapter extends BaseAdapter{ private Context context; private LayoutInflater minflater; private ArrayList<Map<String,Object>> datalist; public MyAdapter(Context context,List<Map<String,Object>> datalist) { this.context=context; this.minflater = LayoutInflater.from(context); this.datalist=(ArrayList<Map<String,Object>>)datalist; } @Override public int getCount() { // TODO Auto-generated method stub return datalist.size(); } @Override public Object getItem(int position) { // TODO Auto-generated method stub return datalist.get(position); } @Override public long getItemId(int position) { // TODO Auto-generated method stub positio=position; return position; } @Override public View getView(int position, View convertView, ViewGroup parent) { Hodler hodler =null; if(convertView == null){ hodler = new Hodler(); convertView = minflater.inflate(R.layout.mylist, null); hodler.img = (ImageView) convertView.findViewById(R.id.img); hodler.title = (TextView) convertView.findViewById(R.id.title); hodler.info = (TextView) convertView.findViewById(R.id.info); hodler.button = (Button) convertView.findViewById(R.id.button); convertView.setTag(hodler); }else{ hodler = (Hodler) convertView.getTag(); } hodler.img.setBackgroundResource((Integer) mdata.get(position).get("img")); hodler.title.setText((CharSequence) mdata.get(position).get("title")); hodler.info.setText((CharSequence) mdata.get(position).get("info")); hodler.button.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { showdialog(); } }); return convertView; } class Hodler { public ImageView img; public TextView title; public TextView info; public Button button; } } public void showdialog() { new AlertDialog.Builder(this).setTitle("提示信息").setMessage("你点击的标题是: " +(String)mdata.get(positio).get("title")) .setPositiveButton("确定", new DialogInterface.OnClickListener(){ @Override public void onClick(DialogInterface dialog, int which) { Toast.makeText(MainActivity.this, "确定", 1000).show(); setResult(RESULT_OK); finish(); } }).setNegativeButton("取消", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { } }).show(); } public List<Map<String, Object>> data() { List<Map<String, Object>> list = new ArrayList<Map<String, Object>>(); Map<String, Object> map = new HashMap<String, Object>(); map.put("title", "苹果"); map.put("info", "apple"); map.put("img", R.drawable.ic_launcher); list.add(map); map = new HashMap<String, Object>(); map.put("title", "书"); map.put("info", "book"); map.put("img", R.drawable.ic_launcher); list.add(map); map = new HashMap<String, Object>(); map.put("title", "电脑"); map.put("info", "computer"); map.put("img", R.drawable.ic_launcher); list.add(map); map = new HashMap<String, Object>(); map.put("title", "对话"); map.put("info", "dialog"); map.put("img", R.drawable.ic_launcher); list.add(map); map = new HashMap<String, Object>(); map.put("title", "运行"); map.put("info", "run"); map.put("img", R.drawable.ic_launcher); list.add(map); return list; } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.main, menu); return true; } @Override public boolean onOptionsItemSelected(MenuItem item) { // Handle action bar item clicks here. The action bar will // automatically handle clicks on the Home/Up button, so long // as you specify a parent activity in AndroidManifest.xml. int id = item.getItemId(); if (id == R.id.action_settings) { return true; } return super.onOptionsItemSelected(item); } } ```