欢迎您访问程序员文章站本站旨在为大家提供分享程序员计算机编程知识!
您现在的位置是: 首页  >  移动技术

实时获取股票数据的android app应用程序源码分享

程序员文章站 2023-11-27 18:45:52
最近学习android应用开发,不知道写一个什么样的程序来练练手,正好最近股票很火,就一个app来实时获取股票数据,取名为mystock。使用开发工具android stu...

最近学习android应用开发,不知道写一个什么样的程序来练练手,正好最近股票很火,就一个app来实时获取股票数据,取名为mystock。使用开发工具android studio,需要从android官网下载,下载地址:。不幸的是android是google公司的,任何和google公司相关的在国内都无法直接访问,只能通过vpn访问。

下图为android studio打开一个工程的截图:

 实时获取股票数据的android app应用程序源码分享

下面按步介绍mystock的实现步骤。

1.以下是activa_main.xml的内容。上面一排是三个textview,分别用来显示上证指数,深圳成指,创业板指。中间一排是一个edittext和一个button,用来添加股票。下面是一个table,用来显示添加的股票列表。

<linearlayout xmlns:android="http://schemas.android.com/apk/res/android"
  xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
  android:layout_height="match_parent" android:orientation="vertical" tools:context=".mainactivity">
  <linearlayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="horizontal">
    <linearlayout
      android:layout_width="0dp"
      android:layout_weight="0.33"
      android:layout_height="wrap_content"
      android:orientation="vertical"
      android:gravity="center" >
      <textview
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/stock_sh_name"/>
      <textview
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/stock_sh_index"/>
      <textview
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textsize="12sp"
        android:id="@+id/stock_sh_change"/>
    </linearlayout>
    <linearlayout
      android:layout_width="0dp"
      android:layout_weight="0.33"
      android:layout_height="wrap_content"
      android:orientation="vertical"
      android:gravity="center" >
      <textview
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/stock_sz_name"/>
      <textview
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/stock_sz_index"/>
      <textview
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textsize="12sp"
        android:id="@+id/stock_sz_change"/>
    </linearlayout>
    <linearlayout
      android:layout_width="0dp"
      android:layout_weight="0.33"
      android:layout_height="wrap_content"
      android:orientation="vertical"
      android:gravity="center" >
      <textview
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/stock_chuang_name"/>
      <textview
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/stock_chuang_index"/>
      <textview
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textsize="12sp"
        android:id="@+id/stock_chuang_change"/>
    </linearlayout>
  </linearlayout>
  <linearlayout
    android:orientation="horizontal"
    android:layout_width="match_parent"
    android:layout_height="wrap_content">
    <edittext
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:inputtype="number"
      android:maxlength="6"
      android:id="@+id/edittext_stockid"
      android:layout_weight="1" />
    <button
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:text="@string/button_add_label"
      android:onclick="addstock" />
  </linearlayout>
  <!--listview
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:id="@+id/listview" /-->
  <scrollview
    android:layout_width="match_parent"
    android:layout_height="wrap_content">
    <tablelayout
      android:layout_width="match_parent"
      android:layout_height="wrap_content"
      android:id="@+id/stock_table"></tablelayout>
  </scrollview>
</linearlayout>

应用截图如下:

 实时获取股票数据的android app应用程序源码分享

 2.数据获取,这里使用sina提供的接口来实时获取股票数据,代码如下:

public void querysinastocks(string list){
    // instantiate the requestqueue.
    requestqueue queue = volley.newrequestqueue(this);
    string url ="http://hq.sinajs.cn/list=" + list;
    //http://hq.sinajs.cn/list=sh600000,sh600536
    // request a string response from the provided url.
    stringrequest stringrequest = new stringrequest(request.method.get, url,
        new response.listener<string>() {
          @override
          public void onresponse(string response) {
            updatestocklistview(sinaresponsetostocks(response));
          }
        },
        new response.errorlistener() {
          @override
          public void onerrorresponse(volleyerror error) {
          }
        });
    queue.add(stringrequest);
  }

这里发送http请求用到了volley,需要在build.gradle里面添加dependencies:compile 'com.mcxiaoke.volley:library:1.0.19'。

3.定时刷新股票数据,使用了timer,每隔两秒发送请求获取数据,代码如下:

  timer timer = new timer("refreshstocks");
    timer.schedule(new timertask() {
      @override
      public void run() {
        refreshstocks();
      }
    }, 0, 2000);

  private void refreshstocks(){
    string ids = "";
    for (string id : stockids_){
      ids += id;
      ids += ",";
    }
    querysinastocks(ids);
  }

 4.在程序退出时存储股票代码,下次打开app时,可以显示上次的股票列表。代码如下。

 private void savestockstopreferences(){
    string ids = "";
    for (string id : stockids_){
      ids += id;
      ids += ",";
    }
    sharedpreferences sharedpref = getpreferences(context.mode_private);
    sharedpreferences.editor editor = sharedpref.edit();
    editor.putstring(stockidskey_, ids);
    editor.commit();
  }
  @override
  public void ondestroy() {
    super.ondestroy(); // always call the superclass
    savestockstopreferences();
  }

5.删除选中的股票,在menu_main.xml里面添加一个action。

<menu xmlns:android="http://schemas.android.com/apk/res/android"
  xmlns:app="http://schemas.android.com/apk/res-auto"
  xmlns:tools="http://schemas.android.com/tools" tools:context=".mainactivity">
  <item android:id="@+id/action_settings" android:title="@string/action_settings"
    android:orderincategory="100" app:showasaction="never" />
  <item android:id="@+id/action_delete" android:title="@string/action_delete"
    android:orderincategory="100" app:showasaction="never" />
</menu>

代码响应事件并删除:

 @override
  public boolean onoptionsitemselected(menuitem item) {
    // handle action bar item clicks here. the action bar will
    // automatically handle clicks on the home/up button, so long
    // as you specify a parent activity in androidmanifest.xml.
    int id = item.getitemid();
    //noinspection simplifiableifstatement
    if (id == r.id.action_settings) {
      return true;
    }
    else if(id == r.id.action_delete){
      if(selectedstockitems_.isempty())
        return true;
      for (string selectedid : selectedstockitems_){
        stockids_.remove(selectedid);
        tablelayout table = (tablelayout)findviewbyid(r.id.stock_table);
        int count = table.getchildcount();
        for (int i = 1; i < count; i++){
          tablerow row = (tablerow)table.getchildat(i);
          linearlayout nameid = (linearlayout)row.getchildat(0);
          textview idtext = (textview)nameid.getchildat(1);
          if(idtext != null && idtext.gettext().tostring() == selectedid){
            table.removeview(row);
            break;
          }
        }
      }
      selectedstockitems_.clear();
    }
    return super.onoptionsitemselected(item);
  }

屏幕截图:

 实时获取股票数据的android app应用程序源码分享

6.当有大额委托挂单时,发送消息提醒,代码如下:

{
...
      string text = "";
      string sbuy = getresources().getstring(r.string.stock_buy);
      string ssell = getresources().getstring(r.string.stock_sell);
      if(double.parsedouble(stock.b1_ )>= stocklargetrade_) {
        text += sbuy + "1:" + stock.b1_ + ",";
      }
      if(double.parsedouble(stock.b2_ )>= stocklargetrade_) {
        text += sbuy + "2:" + stock.b2_ + ",";
      }
      if(double.parsedouble(stock.b3_ )>= stocklargetrade_) {
        text += sbuy + "3:" + stock.b3_ + ",";
      }
      if(double.parsedouble(stock.b4_ )>= stocklargetrade_) {
        text += sbuy + "4:" + stock.b4_ + ",";
      }
      if(double.parsedouble(stock.b5_ )>= stocklargetrade_) {
        text += sbuy + "5:" + stock.b5_ + ",";
      }
      if(double.parsedouble(stock.s1_ )>= stocklargetrade_) {
        text += ssell + "1:" + stock.s1_ + ",";
      }
      if(double.parsedouble(stock.s2_ )>= stocklargetrade_) {
        text += ssell + "2:" + stock.s2_ + ",";
      }
      if(double.parsedouble(stock.s3_ )>= stocklargetrade_) {
        text += ssell + "3:" + stock.s3_ + ",";
      }
      if(double.parsedouble(stock.s4_ )>= stocklargetrade_) {
        text += ssell + "4:" + stock.s4_ + ",";
      }
      if(double.parsedouble(stock.s5_ )>= stocklargetrade_) {
        text += ssell + "5:" + stock.s5_ + ",";
      }
      if(text.length() > 0)
        sendnotifation(integer.parseint(sid), stock.name_, text);
...
}

  public void sendnotifation(int id, string title, string text){
    notificationcompat.builder nbuilder =
        new notificationcompat.builder(this);
    nbuilder.setsmallicon(r.drawable.ic_launcher);
    nbuilder.setcontenttitle(title);
    nbuilder.setcontenttext(text);
    nbuilder.setvibrate(new long[]{100, 100, 100});
    nbuilder.setlights(color.red, 1000, 1000);
    notificationmanager notifymgr = (notificationmanager) getsystemservice(notification_service);
    notifymgr.notify(id, nbuilder.build());
  }

屏幕截图:

实时获取股票数据的android app应用程序源码分享

以上通过图文并茂的方式给大家分享了一个实时获取股票数据的android app应用程序源码,希望大家喜欢。