Java:ArrayAdapter获取单击的行文本视图值
我正在尝试从ArrayAdapter的单击行获取TextView的值。 我有两个问题: 1.如何检测单击的行? 2.怎样才能从那一排中脱颖而出 我正在使用此代码显示列表:Java:ArrayAdapter获取单击的行文本视图值,java,android,listview,onitemclick,Java,Android,Listview,Onitemclick,我正在尝试从ArrayAdapter的单击行获取TextView的值。 我有两个问题: 1.如何检测单击的行? 2.怎样才能从那一排中脱颖而出 我正在使用此代码显示列表: import java.util.ArrayList; import java.util.HashMap; import android.app.Activity; import android.os.Bundle; import android.text.Editable; import android.text.Text
import java.util.ArrayList;
import java.util.HashMap;
import android.app.Activity;
import android.os.Bundle;
import android.text.Editable;
import android.text.TextWatcher;
import android.widget.ArrayAdapter;
import android.widget.EditText;
import android.widget.ListView;
public class MainActivity extends Activity {
// List view
private ListView lv;
// Listview Adapter
ArrayAdapter<String> adapter;
// Search EditText
E ditText inputSearch;
// ArrayList for Listview
ArrayList<HashMap<String, String>> productList;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// Listview Data
String products[] = {"Dell Inspiron", "HTC One X", "HTC Wildfire S", "HTC Sense", "HTC Sensation XE",
"iPhone 4S", "Samsung Galaxy Note 800",
"Samsung Galaxy S3", "MacBook Air", "Mac Mini", "MacBook Pro"};
lv = (ListView) findViewById(R.id.list_view);
inputSearch = (EditText) findViewById(R.id.inputSearch);
// Adding items to listview
adapter = new ArrayAdapter<String>(this, R.layout.list_item, R.id.product_name, products);
lv.setAdapter(adapter);
}
}
import java.util.ArrayList;
导入java.util.HashMap;
导入android.app.Activity;
导入android.os.Bundle;
导入android.text.Editable;
导入android.text.TextWatcher;
导入android.widget.ArrayAdapter;
导入android.widget.EditText;
导入android.widget.ListView;
公共类MainActivity扩展了活动{
//列表视图
私有ListView lv;
//列表视图适配器
阵列适配器;
//搜索编辑文本
编辑文本输入搜索;
//Listview的ArrayList
ArrayList产品列表;
@凌驾
创建时的公共void(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//列表视图数据
字符串产品[]={“戴尔Inspiron”、“HTC One X”、“HTC Wildfire S”、“HTC Sense”、“HTC Sensation XE”,
“iPhone 4S”、“三星Galaxy Note 800”,
“三星Galaxy S3”、“MacBook Air”、“MacMini”、“MacBook Pro”};
lv=(ListView)findViewById(R.id.list\u视图);
inputSearch=(EditText)findViewById(R.id.inputSearch);
//向listview添加项目
适配器=新阵列适配器(此,R.layout.list_项,R.id.product_名称,产品);
低压设置适配器(适配器);
}
}
1-在列表对象上使用侦听器
lv.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view,int position, long id) {
}
});
lv.setOnItemClickListener(新的AdapterView.OnItemClickListener(){
@凌驾
public void onItemClick(AdapterView父对象、视图、整型位置、长id){
}
});
2-position将为您提供在列表视图中单击的项目位置
lv.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view,int position, long id) {
}
});
lv.setOnItemClickListener(新的AdapterView.OnItemClickListener(){
@凌驾
public void onItemClick(AdapterView父对象、视图、整型位置、长id){
}
});
2-position将为您提供在列表视图中单击的项目位置的信息在列表中使用itemclicklistener。 如果您正在向arrayadapter传递字符串,正如您在代码中提到的,那么它将是
mListView.setOnItemClickListener(new OnItemClickListener()
{
@Override
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,long arg3) {
// TODO Auto-generated method stub
String item=arg0.getItemAtPosition(arg2).toString();
}
});
mListView.setOnItemClickListener(新的OnItemClickListener()
{
@凌驾
公共视图单击(AdapterView arg0、视图arg1、整型arg2、长型arg3){
//TODO自动生成的方法存根
String item=arg0.getItemAtPosition(arg2.toString();
}
});
如果在arrayadapter中传递数组列表,如
adapter = new ArrayAdapter<String>(this, R.layout.list_item, R.id.product_name, products);
adapter=newarrayadapter(此,R.layout.list\u项,R.id.product\u名称,产品);
然后,您可以在特定位置获取项目,如下所示:
mListView.setOnItemClickListener(new OnItemClickListener()
{
@Override
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,long arg3) {
// TODO Auto-generated method stub
String item=arg0.getItemAtPosition(arg2).toString();
}
});
mListView.setOnItemClickListener(新的OnItemClickListener()
{
@凌驾
公共视图单击(AdapterView arg0、视图arg1、整型arg2、长型arg3){
//TODO自动生成的方法存根
String item=arg0.getItemAtPosition(arg2.toString();
}
});
在列表中使用itemclicklistener。
如果您正在向arrayadapter传递字符串,正如您在代码中提到的,那么它将是
mListView.setOnItemClickListener(new OnItemClickListener()
{
@Override
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,long arg3) {
// TODO Auto-generated method stub
String item=arg0.getItemAtPosition(arg2).toString();
}
});
mListView.setOnItemClickListener(新的OnItemClickListener()
{
@凌驾
公共视图单击(AdapterView arg0、视图arg1、整型arg2、长型arg3){
//TODO自动生成的方法存根
String item=arg0.getItemAtPosition(arg2.toString();
}
});
如果在arrayadapter中传递数组列表,如
adapter = new ArrayAdapter<String>(this, R.layout.list_item, R.id.product_name, products);
adapter=newarrayadapter(此,R.layout.list\u项,R.id.product\u名称,产品);
然后,您可以在特定位置获取项目,如下所示:
mListView.setOnItemClickListener(new OnItemClickListener()
{
@Override
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,long arg3) {
// TODO Auto-generated method stub
String item=arg0.getItemAtPosition(arg2).toString();
}
});
mListView.setOnItemClickListener(新的OnItemClickListener()
{
@凌驾
公共视图单击(AdapterView arg0、视图arg1、整型arg2、长型arg3){
//TODO自动生成的方法存根
String item=arg0.getItemAtPosition(arg2.toString();
}
});
对listview使用setOnItemSelectedListener()
lv.setOnItemSelectedListener(new MyOnItemSelectedListener());
public class MyOnItemSelectedListener implements OnItemSelectedListener
{
@Override
public void onItemSelected(AdapterView<?> parent, View view, int pos,
long id)
{
//toast message
Toast.makeText(parent.getContext(), "Selected item: " + parent.getItemAtPosition(pos).toString(), Toast.LENGTH_SHORT).show();
String selected_item = parent.getItemAtPosition(pos).toString();
}
@Override
public void onNothingSelected(AdapterView<?> parent) {
// TODO Auto-generated method stub
}
}
lv.setOnItemSelectedListener(新的MyOnItemSelectedListener());
公共类MyOnItemSelectedListener实现OnItemSelectedListener
{
@凌驾
已选择公共视图(AdapterView父视图、视图、int pos、,
长id)
{
//祝酒词
Toast.makeText(parent.getContext(),“Selected item:”+parent.getItemAtPosition(pos).toString(),Toast.LENGTH\u SHORT.show();
所选字符串_item=parent.getItemAtPosition(pos.toString();
}
@凌驾
未选择公共无效(AdapterView父级){
//TODO自动生成的方法存根
}
}
对listview使用setOnItemSelectedListener()
lv.setOnItemSelectedListener(new MyOnItemSelectedListener());
public class MyOnItemSelectedListener implements OnItemSelectedListener
{
@Override
public void onItemSelected(AdapterView<?> parent, View view, int pos,
long id)
{
//toast message
Toast.makeText(parent.getContext(), "Selected item: " + parent.getItemAtPosition(pos).toString(), Toast.LENGTH_SHORT).show();
String selected_item = parent.getItemAtPosition(pos).toString();
}
@Override
public void onNothingSelected(AdapterView<?> parent) {
// TODO Auto-generated method stub
}
}
lv.setOnItemSelectedListener(新的MyOnItemSelectedListener());
公共类MyOnItemSelectedListener实现OnItemSelectedListener
{
@凌驾
已选择公共视图(AdapterView父视图、视图、int pos、,
长id)
{
//祝酒词
Toast.makeText(parent.getContext(),“Selected item:”+parent.getItemAtPosition(pos).toString(),Toast.LENGTH\u SHORT.show();
所选字符串_item=parent.getItemAtPosition(pos.toString();
}
@凌驾
未选择公共无效(AdapterView父级){
//TODO自动生成的方法存根
}
}
对listview使用setOnItemClickListener(),它将为您提供所单击行的位置。看到这一点-我很抱歉迄今为止的每一次尝试都失败了。你能帮我正确地实现它吗?@RaslavM你能展示你的代码,你是如何设置监听器的吗?lv.setOnItemClickListener(新的OnItemClickListener(){@Override public void onItemClick(AdapterView arg0,View arg1,int arg2,long arg3){//TODO Auto