作者：盎然茗嘉 | 来源：互联网 | 2023-05-19 12:00
点击ListView上的按钮，按钮背景变化，同时按钮上的字也发生变化。贴上源码：这个是Activity的源码：***@authorSeawin龙*packagecom
点击ListView上的按钮，按钮背景变化，同时按钮上的字也发生变化。
贴上源码：这个是Activity的源码：
/**
* @author Seawin龙
*/
package com.cn.gordon.exhibition.walk.activity;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.http.gordon.oa.command.NetCallBack;
import org.http.gordon.oa.command.NetUtils;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import com.cn.gordon.exhibition.walk.adapter.RankingAdapter;
import com.cn.gordon.exhibition.walk.application.GlobalVaries;
import com.cn.gordon.exhibition.walk.db.server.ExhibitorsService;
import com.cn.gordon.exhibition.walk.entity.ExhibitorsBean;
import com.cn.gordon.exhibition.walk.utils.Utils;
import android.app.Activity;
import android.app.ProgressDialog;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.Button;
import android.widget.ListView;
import android.widget.Toast;
/**
* @author Seawin龙
*
*/
public class RankingActivity extends Activity {
private ListView listView;
private Button btnBack,btnQuery;
private ProgressDialog pd;
private RankingAdapter rAdapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.rankinglisttopten);
init();
setAction();
}
/**
* @author Seawin龙
*/
public void init() {
btnBack = (Button) findViewById(R.id.btn_back);
btnQuery = (Button) findViewById(R.id.btn_query);
listView = (ListView)findViewById(R.id.myrankinglistView);
getRankingListTopTen();
}
private void displayListView(List mydbrankinglist){
ArrayList> list;
list = this.getItem(mydbrankinglist);
rAdapter = new RankingAdapter(list, getApplicationContext());
listView.setAdapter(rAdapter);
listView.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView arg0, View arg1, int arg2,
long arg3) {
Log.i("displayListView", "listView "+arg2+"\tclicked");
}
});
}
private void getRankingListTopTen() {
GlobalVaries global = (GlobalVaries) getApplication();
//弹出等待对话框
pd = ProgressDialog.show(this, null, "加载中，请稍后...", false, false);
//设置参数
Map postvalues = new HashMap();
postvalues.put("rankingListType", "104");
postvalues.put("exhibitionHashCode", global.getExhibitionHashCode());
new NetUtils(new NetCallBack(){
@Override
public void getNet(NetCallBack_State arg0, String arg1) {
System.out.println(arg1);
if(pd != null && pd.isShowing()){
pd.dismiss();
pd.cancel();
}
switch (arg0) {
case error:
Toast.makeText(RankingActivity.this, "网络资源错误:"+arg1, Toast.LENGTH_SHORT).show();
break;
case noNet:
Toast.makeText(RankingActivity.this, "网络未开启", Toast.LENGTH_SHORT).show();
break;
case wrong:
Toast.makeText(RankingActivity.this, "网络数据错误"+arg1, Toast.LENGTH_SHORT).show();
break;
case ok:
List mytemprankinglist = getRankingList(arg1);
System.out.println(">>>>>>>>>>>>>>>arg1:"+arg1);
List mydbrankinglist = getBeanFromDB(mytemprankinglist);
displayListView(mydbrankinglist);
break;
default:
break;
}
}
}).read(this, false, Utils.RANKINGTOPTEN_URL, null, null, false, postvalues, "GBK", true, true);
}
protected List getBeanFromDB(List mytemprankinglist) {
List returnList = null;
if (mytemprankinglist!=null) {
Collections.sort(mytemprankinglist,new ComparatorExhibitors());
System.out.println(">>>>>>>>>>>>>>>mytemprankinglist.size():"+mytemprankinglist.size());
returnList = new ArrayList();
ExhibitorsService eService = new ExhibitorsService(getApplicationContext());
ExhibitorsBean eBean;
for (int i = 0; i ) {
eBean = new ExhibitorsBean();
eBean = eService.queryExhibitorByExhibitorHashCode(mytemprankinglist.get(i).getHashCode());
System.out.println(">>>>>>>>>>>>>>>HashCode:"+mytemprankinglist.get(i).getHashCode());
returnList.add(eBean);
}
}
return returnList;
}
protected List getRankingList(String arg1) {
List list = new ArrayList();
ExhibitorsBean bean = null;
try {
JSONArray ja = new JSONArray(arg1);
JSONObject jo = null;
for (int i = 0; i ) {
jo = ja.getJSONObject(i);
bean = new ExhibitorsBean();
bean.setHashCode(jo.optString("key"));
bean.setNativeId(jo.optInt("value"));
list.add(bean);
}
} catch (JSONException e) {
e.printStackTrace();
}
return list;
}
public ArrayList> getItem(List mydbrankinglist){
ArrayList> item = new ArrayList>();
if (mydbrankinglist!=null) {
System.out.println(">>>>getItem内部：mynetrankinglist not null");
for (int i = 0; i ) {
HashMap map = new HashMap();
ExhibitorsBean eBean = new ExhibitorsBean();
eBean = mydbrankinglist.get(i);
if (eBean!=null) {
map.put("item", (i+1)+" 、"+eBean.getNativeName());
if (eBean.getChangeCardFlag()==0) {
map.put("buttontext","换名片");
}else if (eBean.getChangeCardFlag()==1) {
map.put("buttontext","已换名片");
}
System.out.println(">>>>>eBean.getNativeName():"+eBean.getNativeName());
item.add(map);
}else{
System.out.println("eBean is null");
}
}
}
return item;
}
private void setAction() {
btnBack.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
finish();
}
});
btnQuery.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent in = new Intent(RankingActivity.this,CheckoutResultActivity.class);
startActivity(in);
}
});
}
public class ComparatorExhibitors implements Comparator{
@Override
public int compare(ExhibitorsBean arg0, ExhibitorsBean arg1) {
return arg1.getNativeId() - arg0.getNativeId();
}
}
}
然后是Adapter的源码：
1 package com.cn.gordon.exhibition.walk.adapter;
2
3 import java.text.SimpleDateFormat;
4 import java.util.ArrayList;
5 import java.util.Date;
6 import java.util.HashMap;
7 import java.util.Map;
8
9 import org.http.gordon.oa.command.NetCallBack;
10 import org.http.gordon.oa.command.NetUtils;
11
12 import com.cn.gordon.exhibition.walk.activity.R;
13 import com.cn.gordon.exhibition.walk.application.GlobalVaries;
14 import com.cn.gordon.exhibition.walk.db.server.BusiCardHolderService;
15 import com.cn.gordon.exhibition.walk.db.server.ExhibitorsService;
16 import com.cn.gordon.exhibition.walk.entity.ExhibitorsBean;
17 import com.cn.gordon.exhibition.walk.entity.MyBusiCardHolderBean;
18 import com.cn.gordon.exhibition.walk.utils.Utils;
19
20 import android.annotation.SuppressLint;
21 import android.app.Activity;
22 import android.app.ProgressDialog;
23 import android.content.Context;
24 import android.util.Log;
25 import android.view.LayoutInflater;
26 import android.view.View;
27 import android.view.View.OnClickListener;
28 import android.view.ViewGroup;
29 import android.widget.BaseAdapter;
30 import android.widget.Button;
31 import android.widget.TextView;
32 import android.widget.Toast;
33
34 public class RankingAdapter extends BaseAdapter {
35
36 private ArrayList> list;
37 private Activity context;
38 ViewHolder holder = null;
39 private LayoutInflater listContainer;
40 private ProgressDialog pd;
41 private GlobalVaries global;
42 private boolean successFlag = false;
43
44 public RankingAdapter(ArrayList> list,Activity context){
45 this.list = list;
46 this.cOntext= context;
47 listCOntainer= LayoutInflater.from(context);
48 }
49
50 @Override
51 public int getCount() {
52 return list.size();
53 }
54
55 @Override
56 public Object getItem(int position) {
57 return list.get(position);
58 }
59
60 @Override
61 public long getItemId(int position) {
62 return position;
63 }
64
65 @SuppressWarnings("deprecation")
66 @Override
67 public View getView(final int position, View convertView, ViewGroup parent) {
68
69 if (cOnvertView==null) {
70 holder = new ViewHolder();
71 cOnvertView= listContainer.inflate(R.layout.rankinglistviewitem, null);
72 holder.btnChangeCard = (Button) convertView.findViewById(R.id.rankingchangecardid);
73 holder.txtCompanyName = (TextView) convertView.findViewById(R.id.rankinglistitemid);
74 ExhibitorsBean eBean = new ExhibitorsBean();
75 eBean = (ExhibitorsBean) list.get(position).get("eBean");
76 if (eBean!=null) {
77 holder.txtCompanyName.setText((position+1)+"、"+eBean.getNativeName());
78 if (eBean.getChangeCardFlag()==0) {
79 holder.btnChangeCard.setText("换名片");
80 // holder.btnChangeCard.setBackgroundDrawable(context.getResources().getDrawable(R.drawable.changecardbtn_pressed_bg));
81
82 }else if (eBean.getChangeCardFlag()==1) {
83 holder.btnChangeCard.setText("已换名片");
84 // holder.btnChangeCard.setBackgroundDrawable(context.getResources().getDrawable(R.drawable.btn_changecard_changed));
85 }
86 convertView.setTag(holder);//绑定ViewHolder对象
87
88 }
89 }else{
90 holder = (ViewHolder)convertView.getTag();//取出ViewHolder对象
91 }
92 holder.btnChangeCard.setOnClickListener(new BtnClickListener(position, context));
93 // holder.btnChangeCard.setOnClickListener(new OnClickListener() {
94 // @Override
95 // public void onClick(View v) {
96 //// ExhibitorsBean eBean = (ExhibitorsBean) list.get(position).get("eBean");
97 //// if (eBean!=null&&eBean.getChangeCardFlag()==0) {
98 //// Toast.makeText(context, eBean.getNativeName()+ "Btn Clicked", Toast.LENGTH_SHORT).show();
99 //// boolean flag = sendChangeBusiCardResulttoServer(eBean);
100 //// if (flag) {
101 //// holder.btnChangeCard.setBackgroundDrawable(context.getResources().getDrawable(R.drawable.btn_changecard_changed));
102 //// Toast.makeText(context, "名片交换成功", Toast.LENGTH_SHORT).show();
103 //// }
104 //// }
105 // if (v.getId()==holder.btnChangeCard.getId()) {
106 //
107 // holder.btnChangeCard.setBackgroundDrawable(context.getResources().getDrawable(R.drawable.btn_changecard_changed));
108 // }
109 // }
110 // });
111 return convertView;
112 }
113
114 @SuppressLint("SimpleDateFormat")
115 protected boolean sendChangeBusiCardResulttoServer(final ExhibitorsBean eBean) {
116 // TODO Auto-generated method stub
117 global = (GlobalVaries) context.getApplication();
118 successFlag = false;
119 //弹出等待对话框
120 pd = ProgressDialog.show(context, null, "加载中，请稍后...", false, false);
121 //设置参数
122 Map postvalues = new HashMap();
123 postvalues.put("aMoiHashCode", global.getUserHashCode());
124 postvalues.put("zMoiHashCode", eBean.getHashCode());
125 new NetUtils(new NetCallBack(){
126
127 @Override
128 public void getNet(NetCallBack_State arg0, String arg1) {
129 System.out.println(arg1);
130 if(pd != null && pd.isShowing()){
131 pd.dismiss();
132 pd.cancel();
133 }
134 switch (arg0) {
135 case error:
136 Toast.makeText(context, "网络资源错误:"+arg1, Toast.LENGTH_SHORT).show();
137 break;
138 case noNet:
139 Toast.makeText(context, "网络未开启", Toast.LENGTH_SHORT).show();
140 break;
141 case wrong:
142 Toast.makeText(context, "网络数据错误"+arg1, Toast.LENGTH_SHORT).show();
143 break;
144 case ok:
145 //将数据库中的展商交换过名片设置为已交换
146 ExhibitorsService eService = new ExhibitorsService(context);
147 eService.setExhibtorChangeCard(eBean.getHashCode());
148 //向名片夹数据库中存储一条名片记录
149 BusiCardHolderService cardHolderService = new BusiCardHolderService(context);
150 MyBusiCardHolderBean cardBean = new MyBusiCardHolderBean();
151 cardBean.setAddress(eBean.getAddress());
152 cardBean.setCompanyLogoUrl(eBean.getImgUrl());
153 cardBean.setCompanyName(eBean.getNativeName());
154 cardBean.setCompanyPhonenum(eBean.getPhoneNumber());
155 cardBean.setDelFlag(0);
156 cardBean.setExhibitionName(global.getExhibitionName());
157 cardBean.setExhibitorHashCode(eBean.getHashCode());
158 cardBean.setFax(eBean.getFaxNumber());
159 SimpleDateFormat sdf =new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
160 cardBean.setGetcardTime(sdf.format(new Date()));
161 cardBean.setTempEmail(eBean.getTempEmail());
162 cardHolderService.addABusiCard(cardBean);
163 //改变当前页当前按钮的背景颜色
164 successFlag = true;
165 System.out.println("名片交换成功");
166 break;
167 default:
168 break;
169 }
170 }
171 }).read(context, false, Utils.CHANGEBUSINESSCARD_URL, null, null, false, postvalues, "GBK", true, true);
172 return successFlag;
173 }
174
175 @Override
176 public void notifyDataSetChanged() {
177 // TODO Auto-generated method stub
178 super.notifyDataSetChanged();
179 }
180
181
182 }
183 class BtnClickListener implements OnClickListener{
184 private int pos;
185 private Activity context;
186 public BtnClickListener(int pos,Activity context) {
187 this.pos = pos;
188 this.cOntext= context;
189 }
190 @SuppressWarnings("deprecation")
191 @Override
192 public void onClick(View v) {
193 v.setBackgroundDrawable(context.getResources().getDrawable(R.drawable.btn_changecard_changed));
194 }
195
196 }
197 class ViewHolder{
198 public TextView txtCompanyName;
199 public Button btnChangeCard;
200 }
然后是listviewitem的布局文件：
1 xml version="1.0" encoding="utf-8"?>
2 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
3 android:layout_width="fill_parent"
4 android:layout_height="match_parent"
5 android:orientation="horizontal"
6 android:descendantFocusability= "blocksDescendants"
7 android:background="@drawable/listview_pressed_bg"
8 >
9
10 <TextView
11 android:layout_width="wrap_content"
12 android:layout_height="wrap_content"
13 android:layout_centerVertical="true"
14 android:id="@+id/rankinglistitemid"
15 android:textColor="@color/black"
16 android:textSize="18sp"
17 android:layout_marginLeft="15dip"
18 android:layout_marginTop="10dip"
19 android:layout_marginBottom="10dip"
20 />
21 <Button
22 android:layout_width="60dip"
23 android:layout_height="30dip"
24 android:gravity="center"
25 android:layout_gravity="center"
26 android:layout_centerVertical="true"
27 android:id="@+id/rankingchangecardid"
28 android:text="@string/exchangecard"
29 android:textColor="@color/white"
30 android:textSize="14sp"
31 android:background="@drawable/changecardbtn_pressed_bg"
32 android:focusable = "false"
33 android:layout_alignParentRight="true"
34 android:layout_marginRight="15dip"
35 android:layout_marginTop="10dip"
36 android:layout_marginBottom="10dip">
37
38 Button>
39 RelativeLayout>
这个布局文件中，
下的
android:descendantFocusability= "blocksDescendants"
和
android:focusable = "false"可以分离listview和Button的点击事件。
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