简单天气获取demo的制作（一）

简单天气获取demo的制作（一）

今天创了博客，想分享一下自己学习的东西，也作为记录自己一点一滴进步的空间吧。本人是大一学生，刚入android不久，纯正小菜鸟，平常没事喜欢写点东西，希望大神们不要抨击。（跪谢）

今天玩手机的时候看到了iphone的weather界面挺好看，于是萌生了做一个demo的想法。
界面是这样的，当时就觉得哎呦，不错哦，由于水平有限，各种折叠的动画还不会做，在这里给大家分享一下如何制作简单的weather demo吧。
好啦，是时候打开编辑器啦，首先是xml的制作，各位稍等。哈哈哈

<?xml version="1.0" encoding="utf-8"?><RelativeLayout 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"    tools:context="com.example.howard.weather.MainActivity">    <TextView        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="City"        android:id="@+id/main_city"        android:textSize="45sp"        android:layout_alignParentTop="true"        android:layout_centerHorizontal="true"        android:layout_marginTop="20dp" />    <TextView        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="weather"        android:textSize="30sp"        android:id="@+id/main_weather"        android:layout_below="@+id/main_city"        android:layout_centerHorizontal="true" />    <TextView        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="temp"        android:textSize="60sp"        android:id="@+id/main_tmp"        android:layout_below="@+id/main_weather"        android:layout_centerHorizontal="true"        android:layout_marginBottom="25dp"/>    <com.example.howard.weather.HorizontalListView        android:layout_marginTop="5dp"        android:layout_marginBottom="5dp"        android:layout_below="@+id/main_tmp"        android:layout_width="match_parent"        android:layout_height="100dp"        android:id="@+id/hor_lv_main"        android:background="@color/colorPrimaryDark"        android:scrollbars="horizontal"></com.example.howard.weather.HorizontalListView>    <TextView        android:textSize="20sp"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="Monday"        android:layout_marginLeft="10dp"        android:layout_marginRight="10dp"        android:id="@+id/main_today"        android:layout_above="@+id/hor_lv_main"        android:layout_alignParentStart="true" />    <TextView        android:textSize="20sp"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="Today"        android:id="@+id/textView2"        android:layout_alignTop="@+id/main_today"        android:layout_toEndOf="@+id/main_today" />    <TextView        android:textSize="20sp"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="min"        android:layout_alignTop="@+id/main_max"        android:layout_toStartOf="@+id/main_max"        android:layout_marginRight="15dp"        android:id="@+id/main_min"/>    <TextView        android:textSize="20sp"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="max"        android:layout_marginRight="20dp"        android:id="@+id/main_max"        android:layout_above="@+id/hor_lv_main"        android:layout_alignParentEnd="true"/>    <ListView        android:layout_width="match_parent"        android:layout_height="match_parent"        android:layout_below="@+id/hor_lv_main"        android:id="@+id/lv_main"></ListView></RelativeLayout>

这就是Main xml啦 效果图是这样的。

中间那块是一个水平的listview用的别人给的框架，也不知道能不能实现，先放源码吧。

/* * HorizontalListView.java v1.5 * *  * The MIT License * Copyright (c) 2011 Paul Soucy ([e-mail]) *  * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: *  * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. *  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. * */package com.example.howard.weather;import java.util.LinkedList;import java.util.Queue;import android.annotation.SuppressLint;import android.content.Context;import android.database.DataSetObserver;import android.graphics.Rect;import android.util.AttributeSet;import android.view.GestureDetector;import android.view.GestureDetector.OnGestureListener;import android.view.MotionEvent;import android.view.View;import android.widget.AdapterView;import android.widget.ListAdapter;import android.widget.Scroller;public class HorizontalListView extends AdapterView<ListAdapter> {    public boolean mAlwaysOverrideTouch = true;    protected ListAdapter mAdapter;    private int mLeftViewIndex = -1;    private int mRightViewIndex = 0;    protected int mCurrentX;    protected int mNextX;    private int mMaxX = Integer.MAX_VALUE;    private int mDisplayOffset = 0;    protected Scroller mScroller;    private GestureDetector mGesture;    private Queue<View> mRemovedViewQueue = new LinkedList<View>();    private OnItemSelectedListener mOnItemSelected;    private OnItemClickListener mOnItemClicked;    private OnItemLongClickListener mOnItemLongClicked;    private boolean mDataChanged = false;    public HorizontalListView(Context context, AttributeSet attrs) {        super(context, attrs);        initView();    }    private synchronized void initView() {        mLeftViewIndex = -1;        mRightViewIndex = 0;        mDisplayOffset = 0;        mCurrentX = 0;        mNextX = 0;        mMaxX = Integer.MAX_VALUE;        mScroller = new Scroller(getContext());        mGesture = new GestureDetector(getContext(), mOnGesture);    }    @Override    public void setOnItemSelectedListener(OnItemSelectedListener listener) {        mOnItemSelected = listener;    }    @Override    public void setOnItemClickListener(OnItemClickListener listener){        mOnItemClicked = listener;    }    @Override    public void setOnItemLongClickListener(OnItemLongClickListener listener) {        mOnItemLongClicked = listener;    }    @Override    public void setOnKeyListener(OnKeyListener l) {        super.setOnKeyListener(l);    }    private DataSetObserver mDataObserver = new DataSetObserver() {        @Override        public void onChanged() {            synchronized(HorizontalListView.this){                mDataChanged = true;            }            invalidate();            requestLayout();        }        @Override        public void onInvalidated() {            reset();            invalidate();            requestLayout();        }    };    @Override    public ListAdapter getAdapter() {        return mAdapter;    }    @Override    public View getSelectedView() {        //TODO: implement        return null;    }    @Override    public void setAdapter(ListAdapter adapter) {        if(mAdapter != null) {            mAdapter.unregisterDataSetObserver(mDataObserver);        }        mAdapter = adapter;        mAdapter.registerDataSetObserver(mDataObserver);        reset();    }    private synchronized void reset(){        initView();        removeAllViewsInLayout();        requestLayout();    }    @Override    public void setSelection(int position) {        //TODO: implement    }    private void addAndMeasureChild(final View child, int viewPos) {        LayoutParams params = child.getLayoutParams();        if(params == null) {            params = new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT);        }        addViewInLayout(child, viewPos, params, true);        child.measure(MeasureSpec.makeMeasureSpec(getWidth(), MeasureSpec.AT_MOST),                MeasureSpec.makeMeasureSpec(getHeight(), MeasureSpec.AT_MOST));    }    @SuppressLint("DrawAllocation")    @Override    protected synchronized void onLayout(boolean changed, int left, int top, int right, int bottom) {        super.onLayout(changed, left, top, right, bottom);        if(mAdapter == null){            return;        }        if(mDataChanged){            int oldCurrentX = mCurrentX;            initView();            removeAllViewsInLayout();            mNextX = oldCurrentX;            mDataChanged = false;        }        if(mScroller.computeScrollOffset()){            int scrollx = mScroller.getCurrX();            mNextX = scrollx;        }        if(mNextX <= 0){            mNextX = 0;            mScroller.forceFinished(true);        }        if(mNextX >= mMaxX) {            mNextX = mMaxX;            mScroller.forceFinished(true);        }        int dx = mCurrentX - mNextX;        removeNonVisibleItems(dx);        fillList(dx);        positionItems(dx);        mCurrentX = mNextX;        if(!mScroller.isFinished()){            post(new Runnable(){                @Override                public void run() {                    requestLayout();                }            });        }    }    private void fillList(final int dx) {        int edge = 0;        View child = getChildAt(getChildCount()-1);        if(child != null) {            edge = child.getRight();        }        fillListRight(edge, dx);        edge = 0;        child = getChildAt(0);        if(child != null) {            edge = child.getLeft();        }        fillListLeft(edge, dx);    }    private void fillListRight(int rightEdge, final int dx)     {        while(rightEdge + dx < getWidth() && mRightViewIndex < mAdapter.getCount()) {            View child = mAdapter.getView(mRightViewIndex, mRemovedViewQueue.poll(), this);            addAndMeasureChild(child, -1);            rightEdge += child.getMeasuredWidth();            if(mRightViewIndex == mAdapter.getCount()-1) {                mMaxX = mCurrentX + rightEdge - getWidth();            }            if (mMaxX < 0) {                mMaxX = 0;            }            mRightViewIndex++;        }    }    private void fillListLeft(int leftEdge, final int dx)     {        while(leftEdge + dx > 0 && mLeftViewIndex >= 0)        {            View child = mAdapter.getView(mLeftViewIndex, mRemovedViewQueue.poll(), this);            addAndMeasureChild(child, 0);            leftEdge -= child.getMeasuredWidth();            mLeftViewIndex--;            mDisplayOffset -= child.getMeasuredWidth();        }    }    private void removeNonVisibleItems(final int dx) {        View child = getChildAt(0);        while(child != null && child.getRight() + dx <= 0) {            mDisplayOffset += child.getMeasuredWidth();            mRemovedViewQueue.offer(child);            removeViewInLayout(child);            mLeftViewIndex++;            child = getChildAt(0);        }        child = getChildAt(getChildCount()-1);        while(child != null && child.getLeft() + dx >= getWidth()) {            mRemovedViewQueue.offer(child);            removeViewInLayout(child);            mRightViewIndex--;            child = getChildAt(getChildCount()-1);        }    }    private void positionItems(final int dx) {        if(getChildCount() > 0){            mDisplayOffset += dx;            int left = mDisplayOffset;            for(int i=0;i<getChildCount();i++){                View child = getChildAt(i);                int childWidth = child.getMeasuredWidth();                child.layout(left, 0, left + childWidth, child.getMeasuredHeight());                left += childWidth + child.getPaddingRight();            }        }    }    public synchronized void scrollTo(int x) {        mScroller.startScroll(mNextX, 0, x - mNextX, 0);        requestLayout();    }    @Override    public boolean dispatchTouchEvent(MotionEvent ev) {        boolean handled = super.dispatchTouchEvent(ev);        handled |= mGesture.onTouchEvent(ev);        return handled;    }    protected boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX,                float velocityY) {        synchronized(HorizontalListView.this){            mScroller.fling(mNextX, 0, (int)-velocityX, 0, 0, mMaxX, 0, 0);        }        requestLayout();        return true;    }    protected boolean onDown(MotionEvent e) {        mScroller.forceFinished(true);        return true;    }    private OnGestureListener mOnGesture = new GestureDetector.SimpleOnGestureListener() {        @Override        public boolean onDown(MotionEvent e)        {            return HorizontalListView.this.onDown(e);        }        @Override        public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY)         {            return HorizontalListView.this.onFling(e1, e2, velocityX, velocityY);        }        @Override        public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY)         {            synchronized(HorizontalListView.this){                mNextX += (int)distanceX;            }            requestLayout();            return true;        }        @Override        public boolean onSingleTapConfirmed(MotionEvent e)         {            for(int i=0;i<getChildCount();i++){                View child = getChildAt(i);                if (isEventWithinView(e, child)) {                    if(mOnItemClicked != null){                        mOnItemClicked.onItemClick(HorizontalListView.this, child, mLeftViewIndex + 1 + i, mAdapter.getItemId( mLeftViewIndex + 1 + i ));                    }                    if(mOnItemSelected != null){                        mOnItemSelected.onItemSelected(HorizontalListView.this, child, mLeftViewIndex + 1 + i, mAdapter.getItemId( mLeftViewIndex + 1 + i ));                    }                    break;                }            }            return true;        }        @Override        public void onLongPress(MotionEvent e)        {            int childCount = getChildCount();            for (int i = 0; i < childCount; i++) {                View child = getChildAt(i);                if (isEventWithinView(e, child)) {                    if (mOnItemLongClicked != null) {                        mOnItemLongClicked.onItemLongClick(HorizontalListView.this, child, mLeftViewIndex + 1 + i, mAdapter.getItemId(mLeftViewIndex + 1 + i));                    }                    break;                }            }        }        private boolean isEventWithinView(MotionEvent e, View child)         {            Rect viewRect = new Rect();            int[] childPosition = new int[2];            child.getLocationOnScreen(childPosition);            int left = childPosition[0];            int right = left + child.getWidth();            int top = childPosition[1];            int bottom = top + child.getHeight();            viewRect.set(left, top, right, bottom);            return viewRect.contains((int) e.getRawX(), (int) e.getRawY());        }    };}

有需要的同学可以自己研究一下，反正我现在没准备管它，先把主界面和最下面的listview搞定吧。下面做什么呢？解析数据呀！本人用的是和风天气的api,感觉还不错。这是我的一个api接口
json格式是这样的

很复杂是吧，先不管他，我们先看一下他的结构，然后就开始着手item的界面了。(这里我们需要四个数据，今天是周几,第二是天气，还有就是最高温和最低温.)我去写xml啦，嘿嘿，稍等。

<?xml version="1.0" encoding="utf-8"?><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:layout_height="wrap_content"    android:paddingTop="5dp"    android:paddingBottom="5dp">    <TextView        android:textSize="20sp"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="Monday"        android:layout_marginLeft="10dp"        android:layout_marginRight="10dp"        android:id="@+id/item_today" />    <TextView        android:textSize="20sp"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="min"        android:layout_alignTop="@+id/item_max"        android:layout_toStartOf="@+id/item_max"        android:layout_marginRight="15dp"        android:id="@+id/item_min"/>    <TextView        android:textSize="20sp"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="max"        android:layout_marginRight="20dp"        android:id="@+id/item_max"        android:layout_above="@+id/hor_lv_main"        android:layout_alignParentEnd="true"/>    <TextView        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="wea"        android:id="@+id/item_wea"        android:textSize="20dp"        android:layout_alignBottom="@+id/item_today"        android:layout_centerHorizontal="true" /></RelativeLayout>

就是一个很简单的界面，因为json数据里面没有提供晴雨天bitmap的url所以我就直接用textview代替啦,效果图是这样的：

好啦，下一步肯定是适配器和数据源的java啦，不多说直接上代码。

package com.example.howard.weather;import java.util.List;/** * Created by Howard on 6/13/16. */public class WeatherBean {    /**     * city : {"aqi":"31","pm10":"24","pm25":"7"}     */    private AqiBean aqi;    /**     * city : 江浦     * cnty : 中国     * id : CN101190106     * lat : 32.027000     * lon : 118.520000     * update : {"loc":"2016-06-20 00:51","utc":"2016-06-19 16:51"}     */    private BasicBean basic;    /**     * cond : {"code":"300","txt":"阵雨"}     * fl : 27     * hum : 97     * pcpn : 0     * pres : 1006     * tmp : 23     * vis : 10     * wind : {"deg":"260","dir":"西北风","sc":"3-4","spd":"16"}     */    private NowBean now;    /**     * aqi : {"city":{"aqi":"31","pm10":"24","pm25":"7"}}     * basic : {"city":"江浦","cnty":"中国","id":"CN101190106","lat":"32.027000","lon":"118.520000","update":{"loc":"2016-06-20 00:51","utc":"2016-06-19 16:51"}}     * daily_forecast : [{"astro":{"sr":"05:00","ss":"19:15"},"cond":{"code_d":"307","code_n":"302","txt_d":"大雨","txt_n":"雷阵雨"},"date":"2016-06-20","hum":"88","pcpn":"10.0","pop":"93","pres":"1003","tmp":{"max":"29","min":"25"},"vis":"9","wind":{"deg":"208","dir":"西南风","sc":"3-4","spd":"13"}},{"astro":{"sr":"05:00","ss":"19:15"},"cond":{"code_d":"302","code_n":"302","txt_d":"雷阵雨","txt_n":"雷阵雨"},"date":"2016-06-21","hum":"79","pcpn":"29.8","pop":"84","pres":"1001","tmp":{"max":"31","min":"26"},"vis":"10","wind":{"deg":"220","dir":"南风","sc":"3-4","spd":"12"}},{"astro":{"sr":"05:00","ss":"19:15"},"cond":{"code_d":"302","code_n":"101","txt_d":"雷阵雨","txt_n":"多云"},"date":"2016-06-22","hum":"61","pcpn":"8.3","pop":"79","pres":"1003","tmp":{"max":"31","min":"27"},"vis":"10","wind":{"deg":"246","dir":"西风","sc":"3-4","spd":"14"}},{"astro":{"sr":"05:00","ss":"19:15"},"cond":{"code_d":"101","code_n":"101","txt_d":"多云","txt_n":"多云"},"date":"2016-06-23","hum":"81","pcpn":"38.8","pop":"71","pres":"1001","tmp":{"max":"32","min":"27"},"vis":"7","wind":{"deg":"235","dir":"南风","sc":"3-4","spd":"10"}},{"astro":{"sr":"05:01","ss":"19:15"},"cond":{"code_d":"101","code_n":"101","txt_d":"多云","txt_n":"多云"},"date":"2016-06-24","hum":"55","pcpn":"4.2","pop":"61","pres":"1001","tmp":{"max":"33","min":"25"},"vis":"10","wind":{"deg":"255","dir":"西风","sc":"3-4","spd":"12"}},{"astro":{"sr":"05:01","ss":"19:15"},"cond":{"code_d":"302","code_n":"302","txt_d":"雷阵雨","txt_n":"雷阵雨"},"date":"2016-06-25","hum":"65","pcpn":"7.5","pop":"51","pres":"1006","tmp":{"max":"30","min":"24"},"vis":"7","wind":{"deg":"137","dir":"东风","sc":"3-4","spd":"12"}},{"astro":{"sr":"05:02","ss":"19:16"},"cond":{"code_d":"309","code_n":"301","txt_d":"毛毛雨/细雨","txt_n":"强阵雨"},"date":"2016-06-26","hum":"87","pcpn":"15.5","pop":"45","pres":"1008","tmp":{"max":"27","min":"23"},"vis":"2","wind":{"deg":"157","dir":"东南风","sc":"微风","spd":"4"}}]     * hourly_forecast : [{"date":"2016-06-20 01:00","hum":"90","pop":"7","pres":"1005","tmp":"25","wind":{"deg":"178","dir":"南风","sc":"微风","spd":"9"}},{"date":"2016-06-20 04:00","hum":"92","pop":"15","pres":"1005","tmp":"24","wind":{"deg":"175","dir":"南风","sc":"微风","spd":"9"}},{"date":"2016-06-20 07:00","hum":"84","pop":"48","pres":"1005","tmp":"25","wind":{"deg":"191","dir":"西南风","sc":"微风","spd":"13"}},{"date":"2016-06-20 10:00","hum":"79","pop":"83","pres":"1005","tmp":"27","wind":{"deg":"208","dir":"西南风","sc":"3-4","spd":"18"}},{"date":"2016-06-20 13:00","hum":"85","pop":"92","pres":"1004","tmp":"29","wind":{"deg":"209","dir":"西南风","sc":"3-4","spd":"19"}},{"date":"2016-06-20 16:00","hum":"90","pop":"91","pres":"1003","tmp":"30","wind":{"deg":"195","dir":"西南风","sc":"微风","spd":"13"}},{"date":"2016-06-20 19:00","hum":"91","pop":"90","pres":"1003","tmp":"28","wind":{"deg":"201","dir":"西南风","sc":"微风","spd":"12"}},{"date":"2016-06-20 22:00","hum":"94","pop":"85","pres":"1004","tmp":"26","wind":{"deg":"186","dir":"南风","sc":"微风","spd":"12"}}]     * now : {"cond":{"code":"300","txt":"阵雨"},"fl":"27","hum":"97","pcpn":"0","pres":"1006","tmp":"23","vis":"10","wind":{"deg":"260","dir":"西北风","sc":"3-4","spd":"16"}}     * status : ok     * suggestion : {"comf":{"brf":"较舒适","txt":"白天有雨，从而使空气湿度加大，会使人们感觉有点儿闷热，但早晚的天气很凉爽、舒适。"},"cw":{"brf":"不宜","txt":"不宜洗车，未来24小时内有雨，如果在此期间洗车，雨水和路上的泥水可能会再次弄脏您的爱车。"},"drsg":{"brf":"热","txt":"天气热，建议着短裙、短裤、短薄外套、T恤等夏季服装。"},"flu":{"brf":"少发","txt":"各项气象条件适宜，无明显降温过程，发生感冒机率较低。"},"sport":{"brf":"较不宜","txt":"有较强降水，建议您选择在室内进行健身休闲运动。"},"trav":{"brf":"较不宜","txt":"温度适宜，风稍大，同时有有较强降水，会给出行产生很多麻烦，建议好还是多选择在室内活动！"},"uv":{"brf":"弱","txt":"紫外线强度较弱，建议出门前涂擦SPF在12-15之间、PA+的防晒护肤品。"}}     */    private String status;    /**     * comf : {"brf":"较舒适","txt":"白天有雨，从而使空气湿度加大，会使人们感觉有点儿闷热，但早晚的天气很凉爽、舒适。"}     * cw : {"brf":"不宜","txt":"不宜洗车，未来24小时内有雨，如果在此期间洗车，雨水和路上的泥水可能会再次弄脏您的爱车。"}     * drsg : {"brf":"热","txt":"天气热，建议着短裙、短裤、短薄外套、T恤等夏季服装。"}     * flu : {"brf":"少发","txt":"各项气象条件适宜，无明显降温过程，发生感冒机率较低。"}     * sport : {"brf":"较不宜","txt":"有较强降水，建议您选择在室内进行健身休闲运动。"}     * trav : {"brf":"较不宜","txt":"温度适宜，风稍大，同时有有较强降水，会给出行产生很多麻烦，建议好还是多选择在室内活动！"}     * uv : {"brf":"弱","txt":"紫外线强度较弱，建议出门前涂擦SPF在12-15之间、PA+的防晒护肤品。"}     */    private SuggestionBean suggestion;    /**     * astro : {"sr":"05:00","ss":"19:15"}     * cond : {"code_d":"307","code_n":"302","txt_d":"大雨","txt_n":"雷阵雨"}     * date : 2016-06-20     * hum : 88     * pcpn : 10.0     * pop : 93     * pres : 1003     * tmp : {"max":"29","min":"25"}     * vis : 9     * wind : {"deg":"208","dir":"西南风","sc":"3-4","spd":"13"}     */    private List<DailyForecastBean> daily_forecast;    /**     * date : 2016-06-20 01:00     * hum : 90     * pop : 7     * pres : 1005     * tmp : 25     * wind : {"deg":"178","dir":"南风","sc":"微风","spd":"9"}     */    private List<HourlyForecastBean> hourly_forecast;    public AqiBean getAqi() {        return aqi;    }    public void setAqi(AqiBean aqi) {        this.aqi = aqi;    }    public BasicBean getBasic() {        return basic;    }    public void setBasic(BasicBean basic) {        this.basic = basic;    }    public NowBean getNow() {        return now;    }    public void setNow(NowBean now) {        this.now = now;    }    public String getStatus() {        return status;    }    public void setStatus(String status) {        this.status = status;    }    public SuggestionBean getSuggestion() {        return suggestion;    }    public void setSuggestion(SuggestionBean suggestion) {        this.suggestion = suggestion;    }    public List<DailyForecastBean> getDaily_forecast() {        return daily_forecast;    }    public void setDaily_forecast(List<DailyForecastBean> daily_forecast) {        this.daily_forecast = daily_forecast;    }    public List<HourlyForecastBean> getHourly_forecast() {        return hourly_forecast;    }    public void setHourly_forecast(List<HourlyForecastBean> hourly_forecast) {        this.hourly_forecast = hourly_forecast;    }    public static class AqiBean {        /**         * aqi : 31         * pm10 : 24         * pm25 : 7         */        private CityBean city;        public CityBean getCity() {            return city;        }        public void setCity(CityBean city) {            this.city = city;        }        public static class CityBean {            private String aqi;            private String pm10;            private String pm25;            public String getAqi() {                return aqi;            }            public void setAqi(String aqi) {                this.aqi = aqi;            }            public String getPm10() {                return pm10;            }            public void setPm10(String pm10) {                this.pm10 = pm10;            }            public String getPm25() {                return pm25;            }            public void setPm25(String pm25) {                this.pm25 = pm25;            }        }    }    public static class BasicBean {        private String city;        private String cnty;        private String id;        private String lat;        private String lon;        /**         * loc : 2016-06-20 00:51         * utc : 2016-06-19 16:51         */        private UpdateBean update;        public String getCity() {            return city;        }        public void setCity(String city) {            this.city = city;        }        public String getCnty() {            return cnty;        }        public void setCnty(String cnty) {            this.cnty = cnty;        }        public String getId() {            return id;        }        public void setId(String id) {            this.id = id;        }        public String getLat() {            return lat;        }        public void setLat(String lat) {            this.lat = lat;        }        public String getLon() {            return lon;        }        public void setLon(String lon) {            this.lon = lon;        }        public UpdateBean getUpdate() {            return update;        }        public void setUpdate(UpdateBean update) {            this.update = update;        }        public static class UpdateBean {            private String loc;            private String utc;            public String getLoc() {                return loc;            }            public void setLoc(String loc) {                this.loc = loc;            }            public String getUtc() {                return utc;            }            public void setUtc(String utc) {                this.utc = utc;            }        }    }    public static class NowBean {        /**         * code : 300         * txt : 阵雨         */        private CondBean cond;        private String fl;        private String hum;        private String pcpn;        private String pres;        private String tmp;        private String vis;        /**         * deg : 260         * dir : 西北风         * sc : 3-4         * spd : 16         */        private WindBean wind;        public CondBean getCond() {            return cond;        }        public void setCond(CondBean cond) {            this.cond = cond;        }        public String getFl() {            return fl;        }        public void setFl(String fl) {            this.fl = fl;        }        public String getHum() {            return hum;        }        public void setHum(String hum) {            this.hum = hum;        }        public String getPcpn() {            return pcpn;        }        public void setPcpn(String pcpn) {            this.pcpn = pcpn;        }        public String getPres() {            return pres;        }        public void setPres(String pres) {            this.pres = pres;        }        public String getTmp() {            return tmp;        }        public void setTmp(String tmp) {            this.tmp = tmp;        }        public String getVis() {            return vis;        }        public void setVis(String vis) {            this.vis = vis;        }        public WindBean getWind() {            return wind;        }        public void setWind(WindBean wind) {            this.wind = wind;        }        public static class CondBean {            private String code;            private String txt;            public String getCode() {                return code;            }            public void setCode(String code) {                this.code = code;            }            public String getTxt() {                return txt;            }            public void setTxt(String txt) {                this.txt = txt;            }        }        public static class WindBean {            private String deg;            private String dir;            private String sc;            private String spd;            public String getDeg() {                return deg;            }            public void setDeg(String deg) {                this.deg = deg;            }            public String getDir() {                return dir;            }            public void setDir(String dir) {                this.dir = dir;            }            public String getSc() {                return sc;            }            public void setSc(String sc) {                this.sc = sc;            }            public String getSpd() {                return spd;            }            public void setSpd(String spd) {                this.spd = spd;            }        }    }    public static class SuggestionBean {        /**         * brf : 较舒适         * txt : 白天有雨，从而使空气湿度加大，会使人们感觉有点儿闷热，但早晚的天气很凉爽、舒适。         */        private ComfBean comf;        /**         * brf : 不宜         * txt : 不宜洗车，未来24小时内有雨，如果在此期间洗车，雨水和路上的泥水可能会再次弄脏您的爱车。         */        private CwBean cw;        /**         * brf : 热         * txt : 天气热，建议着短裙、短裤、短薄外套、T恤等夏季服装。         */        private DrsgBean drsg;        /**         * brf : 少发         * txt : 各项气象条件适宜，无明显降温过程，发生感冒机率较低。         */        private FluBean flu;        /**         * brf : 较不宜         * txt : 有较强降水，建议您选择在室内进行健身休闲运动。         */        private SportBean sport;        /**         * brf : 较不宜         * txt : 温度适宜，风稍大，同时有有较强降水，会给出行产生很多麻烦，建议好还是多选择在室内活动！         */        private TravBean trav;        /**         * brf : 弱         * txt : 紫外线强度较弱，建议出门前涂擦SPF在12-15之间、PA+的防晒护肤品。         */        private UvBean uv;        public ComfBean getComf() {            return comf;        }        public void setComf(ComfBean comf) {            this.comf = comf;        }        public CwBean getCw() {            return cw;        }        public void setCw(CwBean cw) {            this.cw = cw;        }        public DrsgBean getDrsg() {            return drsg;        }        public void setDrsg(DrsgBean drsg) {            this.drsg = drsg;        }        public FluBean getFlu() {            return flu;        }        public void setFlu(FluBean flu) {            this.flu = flu;        }        public SportBean getSport() {            return sport;        }        public void setSport(SportBean sport) {            this.sport = sport;        }        public TravBean getTrav() {            return trav;        }        public void setTrav(TravBean trav) {            this.trav = trav;        }        public UvBean getUv() {            return uv;        }        public void setUv(UvBean uv) {            this.uv = uv;        }        public static class ComfBean {            private String brf;            private String txt;            public String getBrf() {                return brf;            }            public void setBrf(String brf) {                this.brf = brf;            }            public String getTxt() {                return txt;            }            public void setTxt(String txt) {                this.txt = txt;            }        }        public static class CwBean {            private String brf;            private String txt;            public String getBrf() {                return brf;            }            public void setBrf(String brf) {                this.brf = brf;            }            public String getTxt() {                return txt;            }            public void setTxt(String txt) {                this.txt = txt;            }        }        public static class DrsgBean {            private String brf;            private String txt;            public String getBrf() {                return brf;            }            public void setBrf(String brf) {                this.brf = brf;            }            public String getTxt() {                return txt;            }            public void setTxt(String txt) {                this.txt = txt;            }        }        public static class FluBean {            private String brf;            private String txt;            public String getBrf() {                return brf;            }            public void setBrf(String brf) {                this.brf = brf;            }            public String getTxt() {                return txt;            }            public void setTxt(String txt) {                this.txt = txt;            }        }        public static class SportBean {            private String brf;            private String txt;            public String getBrf() {                return brf;            }            public void setBrf(String brf) {                this.brf = brf;            }            public String getTxt() {                return txt;            }            public void setTxt(String txt) {                this.txt = txt;            }        }        public static class TravBean {            private String brf;            private String txt;            public String getBrf() {                return brf;            }            public void setBrf(String brf) {                this.brf = brf;            }            public String getTxt() {                return txt;            }            public void setTxt(String txt) {                this.txt = txt;            }        }        public static class UvBean {            private String brf;            private String txt;            public String getBrf() {                return brf;            }            public void setBrf(String brf) {                this.brf = brf;            }            public String getTxt() {                return txt;            }            public void setTxt(String txt) {                this.txt = txt;            }        }    }    public static class DailyForecastBean {        /**         * sr : 05:00         * ss : 19:15         */        private AstroBean astro;        /**         * code_d : 307         * code_n : 302         * txt_d : 大雨         * txt_n : 雷阵雨         */        private CondBean cond;        private String date;        private String hum;        private String pcpn;        private String pop;        private String pres;        /**         * max : 29         * min : 25         */        private TmpBean tmp;        private String vis;        /**         * deg : 208         * dir : 西南风         * sc : 3-4         * spd : 13         */        private WindBean wind;        public AstroBean getAstro() {            return astro;        }        public void setAstro(AstroBean astro) {            this.astro = astro;        }        public CondBean getCond() {            return cond;        }        public void setCond(CondBean cond) {            this.cond = cond;        }        public String getDate() {            return date;        }        public void setDate(String date) {            this.date = date;        }        public String getHum() {            return hum;        }        public void setHum(String hum) {            this.hum = hum;        }        public String getPcpn() {            return pcpn;        }        public void setPcpn(String pcpn) {            this.pcpn = pcpn;        }        public String getPop() {            return pop;        }        public void setPop(String pop) {            this.pop = pop;        }        public String getPres() {            return pres;        }        public void setPres(String pres) {            this.pres = pres;        }        public TmpBean getTmp() {            return tmp;        }        public void setTmp(TmpBean tmp) {            this.tmp = tmp;        }        public String getVis() {            return vis;        }        public void setVis(String vis) {            this.vis = vis;        }        public WindBean getWind() {            return wind;        }        public void setWind(WindBean wind) {            this.wind = wind;        }        public static class AstroBean {            private String sr;            private String ss;            public String getSr() {                return sr;            }            public void setSr(String sr) {                this.sr = sr;            }            public String getSs() {                return ss;            }            public void setSs(String ss) {                this.ss = ss;            }        }        public static class CondBean {            private String code_d;            private String code_n;            private String txt_d;            private String txt_n;            public String getCode_d() {                return code_d;            }            public void setCode_d(String code_d) {                this.code_d = code_d;            }            public String getCode_n() {                return code_n;            }            public void setCode_n(String code_n) {                this.code_n = code_n;            }            public String getTxt_d() {                return txt_d;            }            public void setTxt_d(String txt_d) {                this.txt_d = txt_d;            }            public String getTxt_n() {                return txt_n;            }            public void setTxt_n(String txt_n) {                this.txt_n = txt_n;            }        }        public static class TmpBean {            private String max;            private String min;            public String getMax() {                return max;            }            public void setMax(String max) {                this.max = max;            }            public String getMin() {                return min;            }            public void setMin(String min) {                this.min = min;            }        }        public static class WindBean {            private String deg;            private String dir;            private String sc;            private String spd;            public String getDeg() {                return deg;            }            public void setDeg(String deg) {                this.deg = deg;            }            public String getDir() {                return dir;            }            public void setDir(String dir) {                this.dir = dir;            }            public String getSc() {                return sc;            }            public void setSc(String sc) {                this.sc = sc;            }            public String getSpd() {                return spd;            }            public void setSpd(String spd) {                this.spd = spd;            }        }    }    public static class HourlyForecastBean {        private String date;        private String hum;        private String pop;        private String pres;        private String tmp;        /**         * deg : 178         * dir : 南风         * sc : 微风         * spd : 9         */        private WindBean wind;        public String getDate() {            return date;        }        public void setDate(String date) {            this.date = date;        }        public String getHum() {            return hum;        }        public void setHum(String hum) {            this.hum = hum;        }        public String getPop() {            return pop;        }        public void setPop(String pop) {            this.pop = pop;        }        public String getPres() {            return pres;        }        public void setPres(String pres) {            this.pres = pres;        }        public String getTmp() {            return tmp;        }        public void setTmp(String tmp) {            this.tmp = tmp;        }        public WindBean getWind() {            return wind;        }        public void setWind(WindBean wind) {            this.wind = wind;        }        public static class WindBean {            private String deg;            private String dir;            private String sc;            private String spd;            public String getDeg() {                return deg;            }            public void setDeg(String deg) {                this.deg = deg;            }            public String getDir() {                return dir;            }            public void setDir(String dir) {                this.dir = dir;            }            public String getSc() {                return sc;            }            public void setSc(String sc) {                this.sc = sc;            }            public String getSpd() {                return spd;            }            public void setSpd(String spd) {                this.spd = spd;            }        }    }}

WeatherBean的类是用git给的gson框架写的，不会的自行Google吧，个人觉得解析数据还是很有必要的。这里我写json类的时候做了一个处理，就是把He Service 3.0:去掉了，保证解析出来是一个jsonObject形式，不然会很麻烦。下面是适配器。这里需要的是获取每日的天气，所以数据源应该是daily_forecasBean.因为没有图片，让我省事了很多，imageloader也不需要了。adapter代码：

package com.example.howard.weather;import com.example.howard.weather.WeatherBean.DailyForecastBean;import java.util.ArrayList;import java.util.List;import android.content.Context;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.widget.BaseAdapter;import android.widget.TextView;public class MainItemAdapter extends BaseAdapter {    private List<DailyForecastBean> objects;    private LayoutInflater layoutInflater;    public MainItemAdapter(Context context,List<DailyForecastBean> mRes) {        this.layoutInflater = LayoutInflater.from(context);        objects = mRes;    }    @Override    public int getCount() {        return objects.size();    }    @Override    public DailyForecastBean getItem(int position) {        return objects.get(position);    }    @Override    public long getItemId(int position) {        return position;    }    @Override    public View getView(int position, View convertView, ViewGroup parent) {        if (convertView == null) {            convertView = layoutInflater.inflate(R.layout.main_item, null);            convertView.setTag(new ViewHolder(convertView));        }        initializeViews((DailyForecastBean) getItem(position), (ViewHolder) convertView.getTag());        return convertView;    }    private void initializeViews(DailyForecastBean object, ViewHolder holder) {        holder.itemToday.setText(object.getDate());        holder.itemWea.setText(object.getCond().getTxt_d());        holder.itemMax.setText(object.getTmp().getMax());        holder.itemMin.setText(object.getTmp().getMin());    }    protected class ViewHolder {        private TextView itemToday;        private TextView itemMin;        private TextView itemMax;        private TextView itemWea;        public ViewHolder(View view) {            itemToday = (TextView) view.findViewById(R.id.item_today);            itemMin = (TextView) view.findViewById(R.id.item_min);            itemMax = (TextView) view.findViewById(R.id.item_max);            itemWea = (TextView) view.findViewById(R.id.item_wea);        }    }}

下面写个httpUtil来解析json数据吧。就是一些简单的io流操作，大神直接略过吧。。。

package com.example.howard.weather;import java.io.ByteArrayOutputStream;import java.io.IOException;import java.io.InputStream;import java.net.HttpURLConnection;import java.net.URL;public class HttpUtils{    public HttpUtils() {    }    public static String getJsonContent(String url_path) {        try {            URL url = new URL(url_path);            HttpURLConnection connection = (HttpURLConnection) url.openConnection();            connection.setConnectTimeout(3000);            connection.setRequestMethod("GET");            connection.setDoInput(true);            int code = connection.getResponseCode();            if (code == 200) {                return changeInputStream(connection.getInputStream());            }        } catch (Exception e) {        }        return "";    }    private static String changeInputStream(InputStream inputStream) {        // TODO Auto-generated method stub        String jsonString = "";        ByteArrayOutputStream outputStream = new ByteArrayOutputStream();        int len = 0;        byte[] data = new byte[1024];        try {            while ((len = inputStream.read(data)) != -1) {                outputStream.write(data, 0, len);            }            jsonString = new String(outputStream.toByteArray());            outputStream.close();        } catch (IOException e) {            e.printStackTrace();        }        return jsonString;    }}

就是一个很简单是工具包，好啦。现在我们来整理一下写好的java代码：HorizontalListView(大神的框架,虽然还不知道有没有用。。)，HttpUtils,MainActivity,MainItemAdapter,WeatherBean.嗯，下面开始写主类吧。主类要实现的功能就是解析url并把数据封装到数据源里接着配置好adapter，貌似也不是什么难事。那么就接着撸吧。。
MainActivity.java代码附上：

package com.example.howard.weather;import android.app.Activity;import android.os.AsyncTask;import android.os.Bundle;import android.widget.HorizontalScrollView;import android.widget.ListView;import android.widget.TextView;import com.google.gson.Gson;import java.util.ArrayList;import java.util.List;import butterknife.Bind;import butterknife.ButterKnife;public class MainActivity extends Activity {    @Bind(R.id.main_city)    TextView mainCity;    @Bind(R.id.main_weather)    TextView mainWeather;    @Bind(R.id.main_tmp)    TextView mainTmp;    @Bind(R.id.hor_lv_main)    HorizontalListView horLvMain;    @Bind(R.id.main_today)    TextView mainToday;    @Bind(R.id.textView2)    TextView textView2;    @Bind(R.id.main_min)    TextView mainMin;    @Bind(R.id.main_max)    TextView mainMax;    @Bind(R.id.lv_main)    ListView lvMain;    private List<WeatherBean.DailyForecastBean>mRes;    private WeatherBean weatherBean;    private WeatherBean.BasicBean basicBean;    private MainItemAdapter mainItemAdapter;    private static String mUrl = "https://api.heweather.com/x3/weather?cityid=CN101190106&key=56f9857126d3463abcd0f88c06700951";    private String json;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        mRes = new ArrayList<>();        ButterKnife.bind(this);        MyAsyncTask task = new MyAsyncTask();        task.execute(mUrl);    }    public class MyAsyncTask extends AsyncTask<String,Void,List<WeatherBean.DailyForecastBean>>{        @Override        protected void onPostExecute(List<WeatherBean.DailyForecastBean> dailyForecastBeen) {            mainCity.setText(weatherBean.getBasic().getCity());            mainMax.setText(weatherBean.getDaily_forecast().get(0).getTmp().getMax());            mainMin.setText(weatherBean.getDaily_forecast().get(0).getTmp().getMin());            mainWeather.setText(weatherBean.getDaily_forecast().get(0).getCond().getTxt_d());            mainToday.setText(weatherBean.getDaily_forecast().get(0).getDate());            mRes = dailyForecastBeen;            mainItemAdapter = new MainItemAdapter(MainActivity.this,mRes);            lvMain.setAdapter(mainItemAdapter);        }        @Override        protected List<WeatherBean.DailyForecastBean> doInBackground(String... params) {            json = HttpUtils.getJsonContent(params[0]);            json = format(json);            Gson gson = new Gson();            weatherBean = gson.fromJson(json,WeatherBean.class);            return weatherBean.getDaily_forecast();        }    }    public String format(String msg){        msg = msg.substring(0,msg.length()-2);        String d1 = msg.substring(31);        return d1;    }}

代码也不是很多，由于温度daily里面获取不到，应该在实时的天气中，这个数据就先放着吧，等以后解析hourly_weather的时候在补上，大家可以看到，这里写了个format方法就是对util获取下来的json数据进行格式化，保证和我们的类一致，这里就不多说啦，到现在为止主要listview和主界面就完成了。
看一下效果图吧：

到此，大家看出什么问题了吗。。是的，第一个item是今天的数据，我们已经让他在上面显示过了，这里就不需要了，所以我们需要对adapter进行修改：

public MainItemAdapter(Context context,List<DailyForecastBean> mRes) {        this.layoutInflater = LayoutInflater.from(context);        objects = mRes;        objects.remove(0);    }

很简单啦，把第一条删除就行了，那么现在来看一下效果吧：

这样就没错啦，好啦，到现在为止一个简单的demo就做好啦，别忘了加入INTERNET权限哦。一些bug和水平listview我会在后面几天抽时间研究啦，希望大家继续关注我，嘿嘿，我是小宇，安卓小菜鸟。
哦对了，忘了说了，这里用到了两个工具包，也是android studio自带的plugins，butterknife和Gson，git上有jar包下载，用的时候放在lib下在导到library就行了，个人还是觉得很好用的，好啦，今天就到这里啦。

大家晚安。