仿淘宝收货地址，本地数据库

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;

public class MyIntentService extends IntentService {

    //必须实现的
    public MyIntentService() {
        super("MyIntentService");
        // TODO Auto-generated constructor stub
    }

    @Override
    protected void onHandleIntent(Intent arg0) {
        // TODO Auto-generated method stub
        //具体的操作
    }

}

 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).

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

/* 定义一个倒计时的内部类 */
    class TimeCount extends CountDownTimer {
        public TimeCount(long millisInFuture, long countDownInterval) {
            super(millisInFuture, countDownInterval);
        }

        @Override
        public void onFinish() {  //倒计时执行结束时操作
            next = 0;
        }

        @Override
        public void onTick(long millisUntilFinished) {  //倒计执行时操作
        }
    }

(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.

landDivideDB = LandDivideDB.getInstance(getBaseContext());
        List landDivide = landDivideDB.queryAddress("superior=?", new String[]{"1"});
        Iterator iterator = null;
        if(landDivide!=null){
            iterator = landDivide.iterator();

            while(iterator.hasNext()){
                LandDivide l = iterator.next();
                sheng.add(l.getName());
            }
        }else{
            return;
        }

mListView1.setOnItemClickListener(new OnItemClickListener() {

            @Override
            public void onItemClick(AdapterView arg0, View arg1, int position,
                    long arg3) {
                // TODO Auto-generated method stub
                mLinearLayout1.setVisibility(View.GONE);
                mLinearLayout2.setVisibility(View.VISIBLE);
                mLinearLayout3.setVisibility(View.GONE);

                shi.clear();
                String name = sheng.get(position);
                String code = null;
                shengStr = name;
                shengTxt2.setText(name);

                List landDivide = landDivideDB.queryAddress("name=?", new String[]{name});
                Iterator iterator= landDivide.iterator();
                while(iterator.hasNext()){
                    LandDivide l = iterator.next();
                    code = l.getCode();
                    break;
                }

                List landDivide_2 = landDivideDB.queryAddress("superior=?", new String[]{code});
                Iterator iterator_2= landDivide_2.iterator();
                while(iterator_2.hasNext()){
                    LandDivide l = iterator_2.next();
                    shi.add(l.getName());
                }

                shiAdapter.notifyDataSetChanged();
                quAdapter.clear();
                quAdapter.notifyDataSetChanged();
            }
        });

        mListView2.setOnItemClickListener(new OnItemClickListener() {

            @Override
            public void onItemClick(AdapterView arg0, View arg1, int position,
                    long arg3) {
                // TODO Auto-generated method stub

                qu.clear();

                String name = shi.get(position);
                String code = null;

                shiStr = name;
                shengTxt3.setText(shengStr);
                shiTxt3.setText(name);

                List landDivide = landDivideDB.queryAddress("name=?", new String[]{name});

                    Iterator iterator= landDivide.iterator();
                    while(iterator.hasNext()){
                        LandDivide l = iterator.next();
                        code = l.getCode();
                        break;
                    }


                List landDivide_2 = landDivideDB.queryAddress("superior=?", new String[]{code});
                if(landDivide_2!=null){
                    Iterator iterator_2= landDivide_2.iterator();
                    while(iterator_2.hasNext()){
                        LandDivide l = iterator_2.next();
                        qu.add(l.getName());
                    }
                }



                 quAdapter.notifyDataSetChanged();

                 if(qu.size()<1){
                        mLinearLayout1.setVisibility(View.GONE);
                        mLinearLayout2.setVisibility(View.VISIBLE);
                        mLinearLayout3.setVisibility(View.GONE);

                     Intent i = new Intent(AddressChoose.this,BuyAddress.class);
                     i.putExtra("address", shengStr+","+shiStr);
                     startActivity(i);
                     finish();

                 }else{

                        mLinearLayout1.setVisibility(View.GONE);
                        mLinearLayout2.setVisibility(View.GONE);
                        mLinearLayout3.setVisibility(View.VISIBLE);

                     mListView3.setVisibility(View.VISIBLE);
                     topView3.setText("请选择  县区/其他...");
                 }
            }
        });

        mListView3.setOnItemClickListener(new OnItemClickListener() {

            @Override
            public void onItemClick(AdapterView arg0, View arg1, int position,
                    long arg3) {
                // TODO Auto-generated method stub

                String name = qu.get(position);

                quStr = name;

                Intent i2 = new Intent(AddressChoose.this,BuyAddress.class);
                i2.putExtra("address", shengStr+" "+shiStr+" "+quStr);
                startActivity(i2);
                finish();
            }
        });

(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.

OnFocusChangeListener focusChanger = new OnFocusChangeListener() {

        @Override
        public void onFocusChange(View v, boolean hasFocus) {
            // TODO Auto-generated method stub
            myAddress.setStreet(jiequText.getText().toString());
            myAddress.setName(nameText.getText().toString());
            myAddress.setPhone(phoneText.getText().toString());

            switch (v.getId()) {
            case R.id.my_set_buyaddress_jiequ:
                if (!hasFocus && myAddress.getStreet().length() > 0) {
                    jiequText.setVisibility(View.GONE);
                    jiequLinear.setVisibility(View.VISIBLE);

                    jiequTextView.setText(myAddress.getStreet());
                }

                if (hasFocus) {
                    jiequText.setSelectAllOnFocus(true);
                }
                break;
            case R.id.my_set_buyaddress_name:
                if (!hasFocus && myAddress.getName().length() > 0) {
                    nameText.setVisibility(View.GONE);
                    nameLinear.setVisibility(View.VISIBLE);

                    nameTextView.setText(myAddress.getName());
                }

                if (hasFocus) {
                    nameText.setSelectAllOnFocus(true);
                }
                break;
            case R.id.my_set_buyaddress_phone:
                if (!hasFocus && myAddress.getPhone().length() > 0) {
                    phoneText.setVisibility(View.GONE);
                    phoneLinear.setVisibility(View.VISIBLE);

                    phoneTextView.setText(myAddress.getPhone());
                }
                if (hasFocus) {
                    phoneText.setSelectAllOnFocus(true);
                }
                break;

            default:
                break;
            }
        }
    };

    OnClickListener click = new OnClickListener() {

        @Override
        public void onClick(View v) {
            // TODO Auto-generated method stub
            switch (v.getId()) {
            case R.id.my_set_buyaddress_sheng_linear:
                Intent i = new Intent(BuyAddress.this, AddressChoose.class);
                i.putExtra("Boolean", "aaa");
                startActivity(i);
                break;
            case R.id.my_set_buyaddress_jiequ_linear:
                jiequText.setVisibility(View.VISIBLE);
                jiequLinear.setVisibility(View.GONE);

                jiequText.setFocusable(true);
                jiequText.setFocusableInTouchMode(true);

                jiequText.requestFocus();
                break;
            case R.id.my_set_buyaddress_name_linear:
                nameText.setVisibility(View.VISIBLE);
                nameLinear.setVisibility(View.GONE);

                nameText.setFocusable(true);
                nameText.setFocusableInTouchMode(true);

                nameText.requestFocus();
                break;
            case R.id.my_set_buyaddress_phone_linear:
                phoneText.setVisibility(View.VISIBLE);
                phoneLinear.setVisibility(View.GONE);

                phoneText.setFocusable(true);
                phoneText.setFocusableInTouchMode(true);

                phoneText.requestFocus();
                break;
            case R.id.my_set_buyaddress_address_btn:
                myAddress.setStreet(jiequText.getText().toString());
                myAddress.setName(nameText.getText().toString());
                myAddress.setPhone(phoneText.getText().toString());

                if (myAddress.getPhone().length() > 0) {
                    phoneText.setVisibility(View.GONE);
                    phoneLinear.setVisibility(View.VISIBLE);
                    phoneTextView.setText(myAddress.getPhone());
                }
                postBtn.requestFocus();

                postBtn.setFocusable(true);
                postBtn.setFocusableInTouchMode(true);

                if (myAddress.getProvinces().length() < 1 || myAddress.getStreet().length() < 1
                        || myAddress.getName().length() < 1 || myAddress.getPhone().length() < 1) {
                    Toast.makeText(getBaseContext(), "请完整填写收货人资料", 0).show();
                    return;
                }

                myAddress.setStatus(checkBox.isChecked());
                AddressDB addressDB = AddressDB.getInstance(getBaseContext());

                if(checkBox.isChecked()){
                    List list = addressDB.queryAddress();
                    if(list!=null){
                        Iterator iterator = list.iterator();
                        while(iterator.hasNext()){
                            AddressInfo a = iterator.next();
                            a.setStatus(false);
                            addressDB.updeteAddress(a);
                        }
                    }

                }


                if (addressinfo != null) {
                    if(addressDB.updeteAddress(myAddress)){
                        Toast.makeText(getBaseContext(), "修改收货地址成功", Toast.LENGTH_LONG).show();
                    }else{
                        Toast.makeText(getBaseContext(), "修改收货地址失败", Toast.LENGTH_LONG).show();
                    }
                } else {

                    SimpleDateFormat format = new SimpleDateFormat(
                            "yyyyMMddHHmmss");
                    Date date = new Date();
                    String id = format.format(date);
                    myAddress.setId(id);

                    if(addressDB.insertAddress(myAddress)){
                        Toast.makeText(getBaseContext(), "添加收货地址成功", Toast.LENGTH_LONG).show();
                    }else{
                        Toast.makeText(getBaseContext(), "添加收货地址失败", Toast.LENGTH_LONG).show();
                    }
                }

                    Intent intent = new Intent(BuyAddress.this, PersonAddress.class);
                    startActivity(intent);
                    finish();


                break;

            case R.id.download_layout1:
                finish();
                break;
            default:
                break;
            }
        }
    };

更多的代码解析,大家可以下载我的demo,看一下哦

最后就这样了哈,有什么不懂的或者更好的建议的,可以提出来哈,欢迎大家指教

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