本文介绍了如何添加搜索功能中的ListView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
如何添加搜索功能在我的Android应用程序?我有一个列表视图中,我想添加搜索功能,我有code,但我不知道我如何用我的应用程序正确地集成它这里是code -
inputSearch.addTextChangedListener(新TextWatcher(){
@覆盖
公共无效onTextChanged(CharSequence的CS,诠释ARG1,诠释ARG2,诠释ARG3){
//当用户更改文本
。MainActivity.this.adapter.getFilter()过滤器(CS);
}
@覆盖
公共无效beforeTextChanged(CharSequence的arg0中,诠释ARG1,INT ARG2,
INT ARG3){
// TODO自动生成方法存根
}
@覆盖
公共无效afterTextChanged(编辑为arg0){
// TODO自动生成方法存根
}
});
和这里是我的java文件
包com.Example.app;
进口android.app.Activity;
进口android.content.Intent;
进口android.os.Bundle;
进口android.view.View;
进口android.widget.AdapterView;
进口android.widget.AdapterView.OnItemClickListener;
进口android.widget.ArrayAdapter;
进口android.widget.ListView;
公共类MainActivity延伸活动{
私人的ListView List1中;
私人字符串数组[] = {iPhone,教程,画廊,机器人,
项目1,项目2,项目3,条款4,项目1,项目2,项目3,条款4,项目1,项目2,item3的,条款4};
@覆盖
公共无效的onCreate(包savedInstanceState){
super.onCreate(savedInstanceState);
的setContentView(R.layout.activity_main);
List1的=(的ListView)findViewById(R.id.ListView01);
通过使用setAdpater方法列表视图//我们一个附加的字符串数组
//名单。
list1.setAdapter(新ArrayAdapter(这一点,
android.R.layout.simple_list_item_1,数组));
list1.setOnItemClickListener(新OnItemClickListener(){
公共无效onItemClick(适配器视图<>母公司视图中查看,
INT位置,长的id){
如果(位置== 1)
{
意图myIntent =新的意图(getApplicationContext(),Baba.class);
startActivity(myIntent);
}
}
});
}
}
main.xml中
< XML版本=1.0编码=UTF-8&GT?;
< LinearLayout中的xmlns:机器人=http://schemas.android.com/apk/res/android
机器人:方向=垂直
机器人:layout_width =WRAP_CONTENT
机器人:layout_height =WRAP_CONTENT
机器人:stackFromBottom =真正的>
<的EditText
机器人:ID =@ + ID / inputSearch
机器人:layout_height =WRAP_CONTENT
机器人:layout_width =FILL_PARENT
机器人:提示=搜索
机器人:inputType =textVisiblePassword>
< /的EditText>
<的ListView
机器人:ID =@ + ID / ListView01
机器人:layout_width =FILL_PARENT
机器人:layout_height =WRAP_CONTENT
机器人:scrollbarSize =5DP
>
< / ListView控件>
< / LinearLayout中>
解决方案
请尝试以下
的EditText inputSearch;
ArrayAdapter<字符串>适配器;
@覆盖
公共无效的onCreate(包savedInstanceState){
super.onCreate(savedInstanceState);
的setContentView(R.layout.activity_main);
inputSearch =(EditText上)findViewById(R.id.inputSearch); //初始化的EditText
List1的=(的ListView)findViewById(R.id.ListView01);
适配器=新的ArrayAdapter<字符串>(这一点,android.R.layout.simple_list_item_1,数组));
list1.setAdapter(适配器);
inputSearch.addTextChangedListener(新TextWatcher(){
@覆盖
公共无效onTextChanged(CharSequence的CS,诠释ARG1,诠释ARG2,诠释ARG3){
//当用户更改文本
。MainActivity.this.adapter.getFilter()过滤器(CS);
}
@覆盖
公共无效beforeTextChanged(CharSequence的arg0中,诠释ARG1,INT ARG2,
INT ARG3){
// TODO自动生成方法存根
}
@覆盖
公共无效afterTextChanged(编辑为arg0){
// TODO自动生成方法存根
}
});
list1.setOnItemClickListener(新OnItemClickListener(){
公共无效onItemClick(适配器视图<>母公司视图中查看,
INT位置,长的id){
如果(位置== 1)
{
意图myIntent =新的意图(getApplicationContext(),Baba.class);
startActivity(myIntent);
}
}
});
}
初始化EDITTEXT inputSearch在的onCreate
。
inputSearch =(EditText上)findViewById(R.id.inputSearch); //初始化的EditText
初始化适配器
适配器=新的ArrayAdapter<字符串>(这一点,android.R.layout.simple_list_item_1,数组));
设置适配器操作列表视图
list1.setAdapter(适配器);
这是搜索情况,其中
@覆盖
公共无效onTextChanged(CharSequence的CS,诠释ARG1,诠释ARG2,诠释ARG3){
//当用户更改文本
。MainActivity.this.adapter.getFilter()过滤器(CS); //过滤器基于输入
}
how do i add Search Functionality in my android app?i have a listview in which i want to add search functionality , i have the code but i dont know how do i integrate it properly with my apphere is the code -
inputSearch.addTextChangedListener(new TextWatcher() {
@Override
public void onTextChanged(CharSequence cs, int arg1, int arg2, int arg3) {
// When user changed the Text
MainActivity.this.adapter.getFilter().filter(cs);
}
@Override
public void beforeTextChanged(CharSequence arg0, int arg1, int arg2,
int arg3) {
// TODO Auto-generated method stub
}
@Override
public void afterTextChanged(Editable arg0) {
// TODO Auto-generated method stub
}
});
and here is my java file
package com.Example.app;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ArrayAdapter;
import android.widget.ListView;
public class MainActivity extends Activity {
private ListView list1;
private String array[] = { "Iphone", "Tutorials", "Gallery", "Android",
"item 1", "item 2", "item3", "item 4", "item 1", "item 2", "item3", "item 4","item 1", "item 2", "item3", "item 4"};
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
list1 = (ListView) findViewById(R.id.ListView01);
// By using setAdpater method in listview we an add string array in
// list.
list1.setAdapter(new ArrayAdapter(this,
android.R.layout.simple_list_item_1, array));
list1.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
if (position == 1)
{
Intent myIntent = new Intent(getApplicationContext(),Baba.class);
startActivity(myIntent);
}
}
});
}
}
main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:stackFromBottom="true">
<EditText
android:id="@+id/inputSearch"
android:layout_height="wrap_content"
android:layout_width="fill_parent"
android:hint="Search"
android:inputType="textVisiblePassword">
</EditText>
<ListView
android:id="@+id/ListView01"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:scrollbarSize="5dp"
>
</ListView>
</LinearLayout>
解决方案
Try the below
EditText inputSearch;
ArrayAdapter<String> adapter;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
inputSearch = (EditText) findViewById(R.id.inputSearch); // initialize edittext
list1 = (ListView) findViewById(R.id.ListView01);
adapter =new ArrayAdapter<String>(this,android.R.layout.simple_list_item_1, array));
list1.setAdapter(adapter);
inputSearch.addTextChangedListener(new TextWatcher() {
@Override
public void onTextChanged(CharSequence cs, int arg1, int arg2, int arg3) {
// When user changed the Text
MainActivity.this.adapter.getFilter().filter(cs);
}
@Override
public void beforeTextChanged(CharSequence arg0, int arg1, int arg2,
int arg3) {
// TODO Auto-generated method stub
}
@Override
public void afterTextChanged(Editable arg0) {
// TODO Auto-generated method stub
}
});
list1.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
if (position == 1)
{
Intent myIntent = new Intent(getApplicationContext(),Baba.class);
startActivity(myIntent);
}
}
});
}
Initialize editText inputSearch in onCreate
.
inputSearch = (EditText) findViewById(R.id.inputSearch); // initialize edittext
Initialize adapter
adapter =new ArrayAdapter<String>(this,android.R.layout.simple_list_item_1, array));
Set the adapter op listview
list1.setAdapter(adapter);
This is where the search happens
@Override
public void onTextChanged(CharSequence cs, int arg1, int arg2, int arg3) {
// When user changed the Text
MainActivity.this.adapter.getFilter().filter(cs); // filter based on input
}
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