仿淘宝收货地址，本地数据库详解手机开发

谁说咱们攻城狮不能写出既幽默又能懂的博客呢,本人想推出一系列博文,可以给刚接触Android开发的做一个参考,也可以与接触Android已久的各路大神比较一下,本人喜欢交流,如果有写得不好的地方,欢迎大家指出.如果有更好的效果或者功能,希望大家多多指点,互相学习可以共同进步.

说了这么多,现在进入今天的猪蹄,推出<<暴走漫画系列–高仿淘宝收货地址>>,有网购经验的同学应该对这个很熟悉,在淘宝的Android客户端里面,有一个功能是设置收货地址,不清楚的同学可以自己下载个淘宝客户端,自己添加一下看看.

本人一向喜欢贴图,这样有图有真相,才能说服每个人,废话不多说先上自己程序启动画面,然后运行界面,最后一张是淘宝客户端对照图.

 图片震楼  启动界面 运行界面 淘宝界面

淘宝客户端无法录屏所以这里只能上静态的,大家可以自己打开淘宝客户端看看.

下面进行详细的代码讲解:

(一)本人在程序启动的时候开了一条后台服务landDivideServeice,目的是为了将全国的省市县总共4,189条数据插入到手机数据库里面去,原本的数据是保存在7个txt里面的,由于放在txt里面,读取操作很不方便,所以我把它放到数据库,在后面的地区筛选很快就出来,这个比淘宝还快哦,不信你们可以试一下.

这里要注意的一点是landDivideServeice是继承IntentService的,不是直接继承Service的.

IntentService是继承于Service并处理异步请求的一个类，在IntentService内有一个工作线程来处理耗时操作，启动IntentService的方式和启动传统Service一样，同时，当任务执行完后，IntentService会自动停止，而不需要我们去手动控制。

简单的说IntentService类似于一条后台线程,但操作完成时,我们不用手动去关闭Serveice,他会自动关闭.MyIntentService继承IntentService,之后必须实现一个无参数的构造方法MyIntentService(),然后还要重写onHandleIntent(Intent intent);此后所有的后台操作即可在onHandleIntent(Intent intent)执行;

[java]
view plain
copy

1. public class MyIntentService extends IntentService {  
2.   
3.     //必须实现的  
4.     public MyIntentService() {  
5.         super(“MyIntentService”);  
6.         // TODO Auto-generated constructor stub  
7.     }  
8.   
9.     @Override  
10.     protected void onHandleIntent(Intent arg0) {  
11.         // TODO Auto-generated method stub  
12.         //具体的操作  
13.     }  
14.   
15. }  

 so ga…

IntentService详细解析:

http://blog.csdn.net/ryantang03/article/details/8146154

http://blog.csdn.net/flowingflying/article/details/7616333

(二)在程序启动的第一个activity里,我弄了一条倒计时线程,时间总共是20秒,目的是想为数据写入数据库争取多一些时间,如果你进入地址筛选界面,看到数据不全或者报错,是因为数据还没有写完.

实现倒计时功能主要是继承CountDownTimer类,重写onTick和onFinsh这两个方法,onFinish()中的代码是计时器结束的时候要做的事情;onTick(Long m)中的代码是你倒计时开始时要做的事情,构造方法TimeCount()中的两个参数中,前者是倒计的时间数,后者是倒计每秒中间 的间隔时间，都是以毫秒为单位.例如要倒计时30秒,每秒中间间隔时间是1秒,两个参数可以这样写TimeCount(20000,1000).

[java]
view plain
copy

1. TimeCount time = new TimeCount(20000, 1000);  
2. time.start();  

[java]
view plain
copy

1. /* 定义一个倒计时的内部类 */  
2.     class TimeCount extends CountDownTimer {  
3.         public TimeCount(long millisInFuture, long countDownInterval) {  
4.             super(millisInFuture, countDownInterval);  
5.         }  
6.   
7.         @Override  
8.         public void onFinish() {  //倒计时执行结束时操作  
9.             next = 0;  
10.         }  
11.   
12.         @Override  
13.         public void onTick(long millisUntilFinished) {  //倒计执行时操作  
14.         }  
15.     }  

(三)剩下的主要是一些界面的切换跟数据的读取,只要思路正确是不会被搞混的.

[java]
view plain
copy

1. landDivideDB = LandDivideDB.getInstance(getBaseContext());  
2.         List<LandDivide> landDivide = landDivideDB.queryAddress(“superior=?”, new String[]{“1”});  
3.         Iterator<LandDivide> iterator = null;  
4.         if(landDivide!=null){  
5.             iterator = landDivide.iterator();  
6.   
7.             while(iterator.hasNext()){  
8.                 LandDivide l = iterator.next();  
9.                 sheng.add(l.getName());  
10.             }  
11.         }else{  
12.             return;  
13.         }  

[java]
view plain
copy

1. mListView1.setOnItemClickListener(new OnItemClickListener() {  
2.   
3.             @Override  
4.             public void onItemClick(AdapterView<?> arg0, View arg1, int position,  
5.                     long arg3) {  
6.                 // TODO Auto-generated method stub  
7.                 mLinearLayout1.setVisibility(View.GONE);  
8.                 mLinearLayout2.setVisibility(View.VISIBLE);  
9.                 mLinearLayout3.setVisibility(View.GONE);  
10.                   
11.                 shi.clear();  
12.                 String name = sheng.get(position);  
13.                 String code = null;  
14.                 shengStr = name;  
15.                 shengTxt2.setText(name);  
16.                   
17.                 List<LandDivide> landDivide = landDivideDB.queryAddress(“name=?”, new String[]{name});  
18.                 Iterator<LandDivide> iterator= landDivide.iterator();  
19.                 while(iterator.hasNext()){  
20.                     LandDivide l = iterator.next();  
21.                     code = l.getCode();  
22.                     break;  
23.                 }  
24.                   
25.                 List<LandDivide> landDivide_2 = landDivideDB.queryAddress(“superior=?”, new String[]{code});  
26.                 Iterator<LandDivide> iterator_2= landDivide_2.iterator();  
27.                 while(iterator_2.hasNext()){  
28.                     LandDivide l = iterator_2.next();  
29.                     shi.add(l.getName());  
30.                 }  
31.                   
32.                 shiAdapter.notifyDataSetChanged();  
33.                 quAdapter.clear();  
34.                 quAdapter.notifyDataSetChanged();  
35.             }  
36.         });  
37.           
38.         mListView2.setOnItemClickListener(new OnItemClickListener() {  
39.   
40.             @Override  
41.             public void onItemClick(AdapterView<?> arg0, View arg1, int position,  
42.                     long arg3) {  
43.                 // TODO Auto-generated method stub  
44.                   
45.                 qu.clear();  
46.                  
47.                 String name = shi.get(position);  
48.                 String code = null;  
49.                   
50.                 shiStr = name;  
51.                 shengTxt3.setText(shengStr);  
52.                 shiTxt3.setText(name);  
53.                   
54.                 List<LandDivide> landDivide = landDivideDB.queryAddress(“name=?”, new String[]{name});  
55.                   
56.                     Iterator<LandDivide> iterator= landDivide.iterator();  
57.                     while(iterator.hasNext()){  
58.                         LandDivide l = iterator.next();  
59.                         code = l.getCode();  
60.                         break;  
61.                     }  
62.                       
63.                       
64.                 List<LandDivide> landDivide_2 = landDivideDB.queryAddress(“superior=?”, new String[]{code});  
65.                 if(landDivide_2!=null){  
66.                     Iterator<LandDivide> iterator_2= landDivide_2.iterator();  
67.                     while(iterator_2.hasNext()){  
68.                         LandDivide l = iterator_2.next();  
69.                         qu.add(l.getName());  
70.                     }  
71.                 }  
72.                   
73.                   
74.                   
75.                  quAdapter.notifyDataSetChanged();  
76.                    
77.                  if(qu.size()<1){  
78.                         mLinearLayout1.setVisibility(View.GONE);  
79.                         mLinearLayout2.setVisibility(View.VISIBLE);  
80.                         mLinearLayout3.setVisibility(View.GONE);  
81.                        
82.                      Intent i = new Intent(AddressChoose.this,BuyAddress.class);  
83.                      i.putExtra(“address”, shengStr+“,”+shiStr);  
84.                      startActivity(i);  
85.                      finish();  
86.                        
87.                  }else{  
88.                        
89.                         mLinearLayout1.setVisibility(View.GONE);  
90.                         mLinearLayout2.setVisibility(View.GONE);  
91.                         mLinearLayout3.setVisibility(View.VISIBLE);  
92.                        
93.                      mListView3.setVisibility(View.VISIBLE);  
94.                      topView3.setText(“请选择  县区/其他…”);  
95.                  }  
96.             }  
97.         });  
98.           
99.         mListView3.setOnItemClickListener(new OnItemClickListener() {  
100.   
101.             @Override  
102.             public void onItemClick(AdapterView<?> arg0, View arg1, int position,  
103.                     long arg3) {  
104.                 // TODO Auto-generated method stub  
105.                   
106.                 String name = qu.get(position);  
107.                   
108.                 quStr = name;  
109.                   
110.                 Intent i2 = new Intent(AddressChoose.this,BuyAddress.class);  
111.                 i2.putExtra(“address”, shengStr+” “+shiStr+” “+quStr);  
112.                 startActivity(i2);  
113.                 finish();  
114.             }  
115.         });  

(四)这个是选择好地址之后的界面,主要还是界面的转换跟焦点的获取

有时候setFocusable(true)跟setFocusableInTouchMode(true)并不能使控件获得焦点,要再之前加上一句requestFocus(),这样控件就可以获得焦点.

[java]
view plain
copy

1. OnFocusChangeListener focusChanger = new OnFocusChangeListener() {  
2.   
3.         @Override  
4.         public void onFocusChange(View v, boolean hasFocus) {  
5.             // TODO Auto-generated method stub  
6.             myAddress.setStreet(jiequText.getText().toString());  
7.             myAddress.setName(nameText.getText().toString());  
8.             myAddress.setPhone(phoneText.getText().toString());  
9.   
10.             switch (v.getId()) {  
11.             case R.id.my_set_buyaddress_jiequ:  
12.                 if (!hasFocus && myAddress.getStreet().length() > 0) {  
13.                     jiequText.setVisibility(View.GONE);  
14.                     jiequLinear.setVisibility(View.VISIBLE);  
15.   
16.                     jiequTextView.setText(myAddress.getStreet());  
17.                 }  
18.   
19.                 if (hasFocus) {  
20.                     jiequText.setSelectAllOnFocus(true);  
21.                 }  
22.                 break;  
23.             case R.id.my_set_buyaddress_name:  
24.                 if (!hasFocus && myAddress.getName().length() > 0) {  
25.                     nameText.setVisibility(View.GONE);  
26.                     nameLinear.setVisibility(View.VISIBLE);  
27.   
28.                     nameTextView.setText(myAddress.getName());  
29.                 }  
30.   
31.                 if (hasFocus) {  
32.                     nameText.setSelectAllOnFocus(true);  
33.                 }  
34.                 break;  
35.             case R.id.my_set_buyaddress_phone:  
36.                 if (!hasFocus && myAddress.getPhone().length() > 0) {  
37.                     phoneText.setVisibility(View.GONE);  
38.                     phoneLinear.setVisibility(View.VISIBLE);  
39.   
40.                     phoneTextView.setText(myAddress.getPhone());  
41.                 }  
42.                 if (hasFocus) {  
43.                     phoneText.setSelectAllOnFocus(true);  
44.                 }  
45.                 break;  
46.   
47.             default:  
48.                 break;  
49.             }  
50.         }  
51.     };  
52.   
53.     OnClickListener click = new OnClickListener() {  
54.   
55.         @Override  
56.         public void onClick(View v) {  
57.             // TODO Auto-generated method stub  
58.             switch (v.getId()) {  
59.             case R.id.my_set_buyaddress_sheng_linear:  
60.                 Intent i = new Intent(BuyAddress.this, AddressChoose.class);  
61.                 i.putExtra(“Boolean”, “aaa”);  
62.                 startActivity(i);  
63.                 break;  
64.             case R.id.my_set_buyaddress_jiequ_linear:  
65.                 jiequText.setVisibility(View.VISIBLE);  
66.                 jiequLinear.setVisibility(View.GONE);  
67.   
68.                 jiequText.setFocusable(true);  
69.                 jiequText.setFocusableInTouchMode(true);  
70.   
71.                 jiequText.requestFocus();  
72.                 break;  
73.             case R.id.my_set_buyaddress_name_linear:  
74.                 nameText.setVisibility(View.VISIBLE);  
75.                 nameLinear.setVisibility(View.GONE);  
76.   
77.                 nameText.setFocusable(true);  
78.                 nameText.setFocusableInTouchMode(true);  
79.   
80.                 nameText.requestFocus();  
81.                 break;  
82.             case R.id.my_set_buyaddress_phone_linear:  
83.                 phoneText.setVisibility(View.VISIBLE);  
84.                 phoneLinear.setVisibility(View.GONE);  
85.   
86.                 phoneText.setFocusable(true);  
87.                 phoneText.setFocusableInTouchMode(true);  
88.   
89.                 phoneText.requestFocus();  
90.                 break;  
91.             case R.id.my_set_buyaddress_address_btn:  
92.                 myAddress.setStreet(jiequText.getText().toString());  
93.                 myAddress.setName(nameText.getText().toString());  
94.                 myAddress.setPhone(phoneText.getText().toString());  
95.                   
96.                 if (myAddress.getPhone().length() > 0) {  
97.                     phoneText.setVisibility(View.GONE);  
98.                     phoneLinear.setVisibility(View.VISIBLE);  
99.                     phoneTextView.setText(myAddress.getPhone());  
100.                 }  
101.                 postBtn.requestFocus();  
102.   
103.                 postBtn.setFocusable(true);  
104.                 postBtn.setFocusableInTouchMode(true);  
105.   
106.                 if (myAddress.getProvinces().length() < 1 || myAddress.getStreet().length() < 1  
107.                         || myAddress.getName().length() < 1 || myAddress.getPhone().length() < 1) {  
108.                     Toast.makeText(getBaseContext(), “请完整填写收货人资料”, 0).show();  
109.                     return;  
110.                 }  
111.                   
112.                 myAddress.setStatus(checkBox.isChecked());  
113.                 AddressDB addressDB = AddressDB.getInstance(getBaseContext());  
114.                   
115.                 if(checkBox.isChecked()){  
116.                     List<AddressInfo> list = addressDB.queryAddress();  
117.                     if(list!=null){  
118.                         Iterator<AddressInfo> iterator = list.iterator();  
119.                         while(iterator.hasNext()){  
120.                             AddressInfo a = iterator.next();  
121.                             a.setStatus(false);  
122.                             addressDB.updeteAddress(a);  
123.                         }  
124.                     }  
125.                       
126.                 }  
127.                   
128.                   
129.                 if (addressinfo != null) {  
130.                     if(addressDB.updeteAddress(myAddress)){  
131.                         Toast.makeText(getBaseContext(), “修改收货地址成功”, Toast.LENGTH_LONG).show();  
132.                     }else{  
133.                         Toast.makeText(getBaseContext(), “修改收货地址失败”, Toast.LENGTH_LONG).show();  
134.                     }  
135.                 } else {  
136.                       
137.                     SimpleDateFormat format = new SimpleDateFormat(  
138.                             “yyyyMMddHHmmss”);  
139.                     Date date = new Date();  
140.                     String id = format.format(date);  
141.                     myAddress.setId(id);  
142.                       
143.                     if(addressDB.insertAddress(myAddress)){  
144.                         Toast.makeText(getBaseContext(), “添加收货地址成功”, Toast.LENGTH_LONG).show();  
145.                     }else{  
146.                         Toast.makeText(getBaseContext(), “添加收货地址失败”, Toast.LENGTH_LONG).show();  
147.                     }  
148.                 }  
149.                   
150.                     Intent intent = new Intent(BuyAddress.this, PersonAddress.class);  
151.                     startActivity(intent);  
152.                     finish();  
153.                   
154.                   
155.                 break;  
156.                   
157.             case R.id.download_layout1:  
158.                 finish();  
159.                 break;  
160.             default:  
161.                 break;  
162.             }  
163.         }  
164.     };  

更多的代码解析,大家可以下载我的demo,看一下哦

小弟不才,参加了CSDN的博客大赛,在这里想请各位帮个忙,投下您尊贵的一票,您说都看到这里了,是不是,底下就是投票的位置了,就顺便投一下嘛(如果底下没有投一票的按钮,请点击下面的链接,进入投票页面,拉到页面底下即可投票). 

投票地址:http://vote.blog.csdn.net/Article/Details?articleid=32936187

源码地址: http://download.csdn.net/detail/chillax_li/7531409