不推荐看

来源：互联网发布：鲁南制药知乎编辑：程序博客网时间：2024/05/16 23:48

这篇是我刚接触安卓半个月写的不推荐看写的太臭了这会在实习等我有空改改

先上张图让大家看一看布局的方式
这里写图片描述

示意图上写的非常清楚了，横向listview里边再加一个横向的scrollview，需要注意的就是触摸事件的分发，我是通过ev.getY来判断高度来区别响应ListView本身的滑动还是ScrollView的滑动。

在这里我只是分点的把一些讲一下，看完再去看程序源码绝对轻松简单。

首先，你得有全国的省市的ID和名字，通过城市ID来从API获取天气数据
http://blog.csdn.net/d_dmelon/article/details/51361416
这本身就是个Activity，可以用startActivityforResult来启动，并且返回城市的Name和ID，通过id访问接口，获取该城市的天气情况。
然后就是怎么获取天气，我用的是这个接口，地址最后边的数字是城市id，北京的ID是101010100，如下
http://wthrcdn.etouch.cn/weather_mini?citykey=101010100

数据如下：

{    "desc":"OK",    "status":1000,    "data":        {            "wendu":"26",            "ganmao":"各项气象条件适宜，无明显降温过程，发生感冒机率较低。",            "forecast":                [                    {"fengxiang":"无持续风向",                    "fengli":"微风级",                    "high":"高温 29℃",                    "type":"晴",                    "low":"低温 15℃",                    "date":"19日星期四"                    },                    {"fengxiang":"无持续风向",                    "fengli":"微风级",                    "high":"高温 30℃",                    "type":"晴",                    "low":"低温 15℃",                    "date":"20日星期五"                    },                    {"fengxiang":"无持续风向","fengli":"微风级","high":"高温 30℃",                    "type":"晴","low":"低温 15℃","date":"21日星期六"                    },                    {"fengxiang":"无持续风向","fengli":"微风级","high":"高温 28℃",                    "type":"多云","low":"低温 17℃","date":"22日星期天"                    },                    {"fengxiang":"无持续风向","fengli":"微风级","high":"高温 25℃",                    "type":"阴","low":"低温 15℃","date":"23日星期一"                    }                ],            "yesterday":                {                    "fl":"微风","fx":"无持续风向","high":"高温 29℃","type":"晴","low":"低温 18℃","date":"18日星期三"                },            "aqi":"137",            "city":"北京"        }}

有了数据，就得显示吧，解析上边的JSON数据看看我们能获取什么有用的信信息。当天温度(wendu)，和接下来5天的感冒、风向，风力、高低温、天气情况(type)。天气情况用图片显示，其他的用文字描述。这样我们要在listview里存的data已经很明确了。
资源文件的resID Int型和天气情况的文字描述 String型。
所以data应该是个HashMap

            HashMap<String,Object> item = new HashMap<String,Object>();            item.put("ftype",Rfirpng);// String ,Int            item.put("stype",Rsecpng);            item.put("ttype",Rthrpng);            item.put("fotype",Rfoupng);            item.put("fitype",Rfifpng);            item.put("name",strName);            item.put("ID",strID);            item.put("wendu",wendu);//String ,String            item.put("fengxiang",fengxiang);            item.put("ganmao",ganmao);            item.put("finfo",finfo);            item.put("sinfo",sinfo);            item.put("tinfo",tinfo);            item.put("foinfo",foinfo);            item.put("fiinfo",fiinfo);            mainList.add(item);            saveListData();

        String[] Keys = new String[]{"ftype","ftype","stype","ttype","fotype","fitype"                ,"name","wendu","fengxiang","ganmao","finfo","sinfo","tinfo","foinfo","fiinfo"};        int[] Ids = new int[]{R.id.pngtype,R.id.firpng,R.id.secpng,R.id.thrpng,R.id.foupng,R.id.fifpng                ,R.id.text_name,R.id.text_wendu,R.id.text_fengxiang,R.id.text_ganmao                ,R.id.firdayinfo,R.id.secdayinfo,R.id.thrdayinfo,R.id.foudayinfo,R.id.fifdayinfo};        mainAdapter = new SimpleAdapter(this,mainList,R.layout.weather,Keys,Ids);//        mAdapter = new HorizontalSimpleAdapter(this,mainList,R.layout.weather,Keys,Ids);        mainListView.setAdapter(mainAdapter);//        mainListView.setAdapter(mAdapter);

恩恩，到这里就差不多能显示了，但天气预报不仅仅如此，看到我上边贴出来的代码里 saveListData这个函数，是不是很奇怪啊，这就是接下来我要说的，通过SharedPreferences来保存天气信息和是否第一次进入(如果要扩展，以后做过第一次进入的引导界面也是OK的)。
那么到底要保存哪些信息？
1是Json解析出来我们要显示的图片的resID和文字描述。
2是是否第一次进入，布尔值，如果第一次进入默认网络请求加载北京市的城市天气
3是上次我们申请刷新天气的时间，如果没有这个判断，你过几天再登进去看就是过时的信息啦哈哈

    public void saveListData(){ //保存数据        SharedPreferences.Editor editor = getSharedPreferences("ArrayData",MODE_PRIVATE).edit();        SharedPreferences getData = getSharedPreferences("ArrayData",MODE_PRIVATE);//        int oldSize =getData.getInt("NUMBER",0);        editor.putInt("NUMBER",mainList.size());//已有的Item数目        for(int i=0;i<mainList.size();i++){ //把图片的R.ID存进去            editor.putInt("Item"+i+"ftype",(int)mainList.get(i).get("ftype"));            editor.putInt("Item"+i+"stype",(int)mainList.get(i).get("stype"));            editor.putInt("Item"+i+"ttype",(int)mainList.get(i).get("ttype"));            editor.putInt("Item"+i+"fotype",(int)mainList.get(i).get("fotype"));            editor.putInt("Item"+i+"fitype",(int)mainList.get(i).get("fitype"));            editor.putString("Item"+i+"name",(String)mainList.get(i).get("name"));            editor.putString("Item"+i+"ID",(String)mainList.get(i).get("ID"));            editor.putString("Item"+i+"wendu",(String)mainList.get(i).get("wendu"));            editor.putString("Item"+i+"fengxiang",(String)mainList.get(i).get("fengxiang"));            editor.putString("Item"+i+"ganmao",(String)mainList.get(i).get("ganmao"));            editor.putString("Item"+i+"finfo",(String)mainList.get(i).get("finfo"));            editor.putString("Item"+i+"sinfo",(String)mainList.get(i).get("sinfo"));            editor.putString("Item"+i+"tinfo",(String)mainList.get(i).get("tinfo"));            editor.putString("Item"+i+"foinfo",(String)mainList.get(i).get("foinfo"));            editor.putString("Item"+i+"fiinfo",(String)mainList.get(i).get("fiinfo"));        }        editor.commit();        Calendar c = Calendar.getInstance();        int saveHour = c.get(Calendar.HOUR_OF_DAY);        SharedPreferences.Editor settingEditor = getSharedPreferences("data",MODE_PRIVATE).edit();        settingEditor.putInt("saveHour",saveHour);        settingEditor.commit();    }

    public boolean Isfirst(){        SharedPreferences settings = getSharedPreferences("data",MODE_PRIVATE);        Boolean First = settings.getBoolean("IsFirstIn",true);//没有字段则为第一次进入        return First;    }

有save肯定有get啦

public void getListData(){ //获取数据        SharedPreferences getData = getSharedPreferences("ArrayData",MODE_PRIVATE);        int Size =getData.getInt("NUMBER", 0);//若取不到NUMBER值 则默认为0        if(checkUpdate()) {            for (int i = 0; i < Size; i++) {                strID = getData.getString("Item"+i+"ID","NULL");                strName = getData.getString("Item"+i+"name","NULL");                WeatherUrl = WEATHER_URL + strID;                sendRequestWithHttpURLConnection();                try{                    Thread.sleep(200);                }catch (Exception e ){e.printStackTrace();}            }        }        else{            for(int i=0;i<Size;i++){                HashMap<String,Object> item = new HashMap<String,Object>();                item.put("today",getData.getInt("Item"+i+"today",R.drawable.daxue));                item.put("ftype",getData.getInt("Item"+i+"ftype",R.drawable.daxue));                item.put("stype",getData.getInt("Item"+i+"stype",R.drawable.daxue));                item.put("ttype",getData.getInt("Item"+i+"ttype",R.drawable.daxue));                item.put("fotype",getData.getInt("Item"+i+"fotype",R.drawable.daxue));                item.put("fitype",getData.getInt("Item"+i+"fitype",R.drawable.daxue));                item.put("name",getData.getString("Item"+i+"name","NULL"));                item.put("ID",getData.getString("Item"+i+"ID","NULL"));                item.put("wendu",getData.getString("Item"+i+"wendu","NULL"));                item.put("fengxiang",getData.getString("Item"+i+"fengxiang","NULL"));                item.put("ganmao",getData.getString("Item"+i+"ganmao","NULL"));                item.put("finfo",getData.getString("Item"+i+"finfo","NULL"));                item.put("sinfo",getData.getString("Item"+i+"sinfo","NULL"));                item.put("tinfo",getData.getString("Item"+i+"tinfo","NULL"));                item.put("foinfo",getData.getString("Item"+i+"foinfo","NULL"));                item.put("fiinfo",getData.getString("Item"+i+"fiinfo","NULL"));                mainList.add(item);            }        }    }

知识有限，存取的方法可能比较low，不过功能倒是实现了~~

源码源码

APK地址

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