如何在 ListView 中添加搜索功能 [英] How To Add Search Functionality in ListView
本文介绍了如何在 ListView 中添加搜索功能的处理方法,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
如何在我的安卓应用中添加搜索功能?我有一个列表视图,我想在其中添加搜索功能,我有代码,但我不知道如何将它与我的应用程序正确集成这是代码 -
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 app here 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
}
});
这是我的java文件
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>
推荐答案
试试下面的
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);
}
}
});
}
在onCreate
中初始化editText inputSearch.
Initialize editText inputSearch in onCreate
.
inputSearch = (EditText) findViewById(R.id.inputSearch); // initialize edittext
初始化适配器
adapter =new ArrayAdapter<String>(this,android.R.layout.simple_list_item_1, array));
设置适配器操作列表视图
Set the adapter op listview
list1.setAdapter(adapter);
这是搜索发生的地方
@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
}
这篇关于如何在 ListView 中添加搜索功能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!
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