1、創(chuàng)建activity界面布局.xml
創(chuàng)新互聯(lián)建站2013年開(kāi)創(chuàng)至今,是專(zhuān)業(yè)互聯(lián)網(wǎng)技術(shù)服務(wù)公司,擁有項(xiàng)目成都做網(wǎng)站、成都網(wǎng)站建設(shè)網(wǎng)站策劃,項(xiàng)目實(shí)施與項(xiàng)目整合能力。我們以讓每一個(gè)夢(mèng)想脫穎而出為使命,1280元淮濱做網(wǎng)站,已為上家服務(wù),為淮濱各地企業(yè)和個(gè)人服務(wù),聯(lián)系電話:18982081108
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<ListView android:id="@+id/listview"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:cacheColorHint="#00000000" />
</LinearLayout>
2、自定義列表的適配器adapter
package com.example.t;
import java.util.ArrayList;
import android.content.Context;
import android.graphics.Bitmap;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.LinearLayout;
import android.widget.TextView;
public class MyListviewAdapter extends BaseAdapter {
private LayoutInflater inflater = null;
private ArrayList<String> arraylist = null;
private Bitmap icon;
private int selectedPosition = -1;
private Context context;
public void setSelectedPosition(int position) {
selectedPosition = position;
}
public void setDatas(ArrayList<String> tmp) {
// 保存適配器中的每項(xiàng)的文字信息
this.arraylist.clear();
this.arraylist.addAll(tmp);
notifyDataSetChanged();
}
public MyListviewAdapter(Context context) {
this.context = context;
// LayoutInflater用來(lái)加載界面
inflater = LayoutInflater.from(context);
}
@Override
public int getCount() {
return arraylist.size();
}
@Override
public Object getItem(int position) {
return arraylist.get(position);
}
@Override
public long getItemId(int position) {
return position;
}
// 保存每項(xiàng)中的控件的引用
class ViewHolder {
TextView text;
LinearLayout layout;
}
@Override
public View getView(int position, View convert, ViewGroup parent) {
ViewHolder holder;
if (convert == null) // 實(shí)現(xiàn)復(fù)用行布局
{
// 調(diào)用LayoutInflater的inflate方法加載layout文件夾中的界面
convert = inflater.inflate(R.layout.lists, null);
holder = new ViewHolder();
holder.text = (TextView) convert.findViewById(R.id.text);
holder.layout = (LinearLayout) convert.findViewById(R.id.layout);
// 保存包含當(dāng)前項(xiàng)控件的對(duì)象
convert.setTag(holder);
} else {
// 獲取包含當(dāng)前項(xiàng)控件的對(duì)象
holder = (ViewHolder) convert.getTag();
}
// 設(shè)置當(dāng)前項(xiàng)的內(nèi)容
holder.text.setText(arraylist.get(position));
// 設(shè)置選中效果
if (selectedPosition == position) {
holder.text.setTextColor(context.getResources().getColor(R.color.textcolor_select));
holder.layout.setBackgroundResource(R.drawable.list_select)
} else {
holder.text.setTextColor(context.getResources().getColor(R.color.textcolor_normal));
holder.layout.setBackgroundResource(R.drawable.list_normal)
}
return convert;
}
}
3、列表的布局
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:Android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
<LinearLayout android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="40px"
android:id="@+id/layout"
android:padding="6px">
<TextView android:id="@+id/text"
android:layout_gravity="center_horizontal"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</LinearLayout>
</LinearLayout>
4、在activity中
// 添加列表框項(xiàng)目點(diǎn)擊事件
listview.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
// 設(shè)置適配器的選中項(xiàng)
listAdapter.setSelectedPosition(position);
// 更新列表框
listAdapter.notifyDataSetInvalidated();
}
});
文章題目:簡(jiǎn)單實(shí)現(xiàn)ListView選中后的效果
鏈接分享:http://chinadenli.net/article10/gidedo.html
成都網(wǎng)站建設(shè)公司_創(chuàng)新互聯(lián),為您提供網(wǎng)站改版、電子商務(wù)、做網(wǎng)站、靜態(tài)網(wǎng)站、網(wǎng)站策劃、微信公眾號(hào)
聲明:本網(wǎng)站發(fā)布的內(nèi)容(圖片、視頻和文字)以用戶(hù)投稿、用戶(hù)轉(zhuǎn)載內(nèi)容為主,如果涉及侵權(quán)請(qǐng)盡快告知,我們將會(huì)在第一時(shí)間刪除。文章觀點(diǎn)不代表本網(wǎng)站立場(chǎng),如需處理請(qǐng)聯(lián)系客服。電話:028-86922220;郵箱:631063699@qq.com。內(nèi)容未經(jīng)允許不得轉(zhuǎn)載,或轉(zhuǎn)載時(shí)需注明來(lái)源: 創(chuàng)新互聯(lián)
全網(wǎng)營(yíng)銷(xiāo)推廣知識(shí)