Android——一个简单的天气APP

效果演示视频

简述

此天气数据源采用心知天气API(试用版)，免费版获取数据有限，只能获取普通的温度、湿度等，例如压力、云量、可见度等均获取不到，试用版相当于正式版，可以获取大部分数据，试用日期是14天。

首页不同城市天气页面之间的滑动采用的是ViewPager，编辑界面的搜索栏采用的是SearchView+ListView,其中城市数据源是统计到一个xml文件中；通过点击搜索匹配项，插入至SQLite数据库中，然后刷新当前天气子项，然后通过EventBus通知首页更新views页面。处于编辑状态时，删除子项，同样使用EventBus通知首页更新；更新主要是页面数量更新和下方指示器更新。

天气JSON数据

实况天气

{
    "results":[
        {
            "location":{
                "id":"WKZTU85FVNSV",
                "name":"娄底",
                "country":"CN",
                "path":"娄底,娄底,湖南,中国",
                "timezone":"Asia/Shanghai",
                "timezone_offset":"+08:00"
            },
            "now":{
                "text":"晴",
                "code":"1",
                "temperature":"25",
                "feels_like":"26",
                "pressure":"984",
                "humidity":"56",
                "visibility":"19.0",
                "wind_direction":"北",
                "wind_direction_degree":"342",
                "wind_speed":"6.0",
                "wind_scale":"2",
                "clouds":"13",
                "dew_point":""
            },
            "last_update":"2022-09-02T22:08:30+08:00"
        }
    ]
}

逐24小时天气预报

{
    "results":[
        {
            "location":{
                "id":"WWYMRT0VRMUG",
                "name":"大连",
                "country":"CN",
                "path":"大连,大连,辽宁,中国",
                "timezone":"Asia/Shanghai",
                "timezone_offset":"+08:00"
            },
            "hourly":[
                {
                    "time":"2022-09-02T22:00:00+08:00",
                    "text":"多云",
                    "code":"4",
                    "temperature":"21",
                    "humidity":"81",
                    "wind_direction":"东",
                    "wind_speed":"7.52"
                },
                {
                    "time":"2022-09-02T23:00:00+08:00",
                    "text":"阴",
                    "code":"9",
                    "temperature":"21",
                    "humidity":"82",
                    "wind_direction":"东北",
                    "wind_speed":"7.02"
                },
                {
                    "time":"2022-09-03T00:00:00+08:00",
                    "text":"阴",
                    "code":"9",
                    "temperature":"21",
                    "humidity":"83",
                    "wind_direction":"东北",
                    "wind_speed":"7.81"
                },
                {
                    "time":"2022-09-03T01:00:00+08:00",
                    "text":"阴",
                    "code":"9",
                    "temperature":"21",
                    "humidity":"84",
                    "wind_direction":"东北",
                    "wind_speed":"8.64"
                },
                {
                    "time":"2022-09-03T02:00:00+08:00",
                    "text":"阴",
                    "code":"9",
                    "temperature":"21",
                    "humidity":"85",
                    "wind_direction":"东北",
                    "wind_speed":"9.54"
                },
                {
                    "time":"2022-09-03T03:00:00+08:00",
                    "text":"阴",
                    "code":"9",
                    "temperature":"21",
                    "humidity":"85",
                    "wind_direction":"东北",
                    "wind_speed":"10.15"
                },
                {
                    "time":"2022-09-03T04:00:00+08:00",
                    "text":"阴",
                    "code":"9",
                    "temperature":"21",
                    "humidity":"86",
                    "wind_direction":"东北",
                    "wind_speed":"10.73"
                },
                {
                    "time":"2022-09-03T05:00:00+08:00",
                    "text":"阴",
                    "code":"9",
                    "temperature":"21",
                    "humidity":"86",
                    "wind_direction":"东北",
                    "wind_speed":"11.34"
                },
                {
                    "time":"2022-09-03T06:00:00+08:00",
                    "text":"阴",
                    "code":"9",
                    "temperature":"21",
                    "humidity":"86",
                    "wind_direction":"东北",
                    "wind_speed":"13.68"
                },
                {
                    "time":"2022-09-03T07:00:00+08:00",
                    "text":"阴",
                    "code":"9",
                    "temperature":"22",
                    "humidity":"85",
                    "wind_direction":"东北",
                    "wind_speed":"16.16"
                },
                {
                    "time":"2022-09-03T08:00:00+08:00",
                    "text":"多云",
                    "code":"4",
                    "temperature":"23",
                    "humidity":"83",
                    "wind_direction":"东北",
                    "wind_speed":"18.72"
                },
                {
                    "time":"2022-09-03T09:00:00+08:00",
                    "text":"多云",
                    "code":"4",
                    "temperature":"23",
                    "humidity":"81",
                    "wind_direction":"东",
                    "wind_speed":"18.18"
                },
                {
                    "time":"2022-09-03T10:00:00+08:00",
                    "text":"多云",
                    "code":"4",
                    "temperature":"24",
                    "humidity":"79",
                    "wind_direction":"东",
                    "wind_speed":"18.97"
                },
                {
                    "time":"2022-09-03T11:00:00+08:00",
                    "text":"晴",
                    "code":"0",
                    "temperature":"24",
                    "humidity":"77",
                    "wind_direction":"东",
                    "wind_speed":"20.92"
                },
                {
                    "time":"2022-09-03T12:00:00+08:00",
                    "text":"多云",
                    "code":"4",
                    "temperature":"24",
                    "humidity":"76",
                    "wind_direction":"东",
                    "wind_speed":"19.84"
                },
                {
                    "time":"2022-09-03T13:00:00+08:00",
                    "text":"阴",
                    "code":"9",
                    "temperature":"24",
                    "humidity":"76",
                    "wind_direction":"东",
                    "wind_speed":"19.12"
                },
                {
                    "time":"2022-09-03T14:00:00+08:00",
                    "text":"阴",
                    "code":"9",
                    "temperature":"24",
                    "humidity":"75",
                    "wind_direction":"东",
                    "wind_speed":"18.83"
                },
                {
                    "time":"2022-09-03T15:00:00+08:00",
                    "text":"阴",
                    "code":"9",
                    "temperature":"24",
                    "humidity":"76",
                    "wind_direction":"东",
                    "wind_speed":"19.44"
                },
                {
                    "time":"2022-09-03T16:00:00+08:00",
                    "text":"阴",
                    "code":"9",
                    "temperature":"23",
                    "humidity":"77",
                    "wind_direction":"东",
                    "wind_speed":"20.09"
                },
                {
                    "time":"2022-09-03T17:00:00+08:00",
                    "text":"阴",
                    "code":"9",
                    "temperature":"23",
                    "humidity":"77",
                    "wind_direction":"东",
                    "wind_speed":"20.77"
                },
                {
                    "time":"2022-09-03T18:00:00+08:00",
                    "text":"阴",
                    "code":"9",
                    "temperature":"22",
                    "humidity":"78",
                    "wind_direction":"东",
                    "wind_speed":"19.66"
                },
                {
                    "time":"2022-09-03T19:00:00+08:00",
                    "text":"阴",
                    "code":"9",
                    "temperature":"22",
                    "humidity":"78",
                    "wind_direction":"东",
                    "wind_speed":"18.58"
                },
                {
                    "time":"2022-09-03T20:00:00+08:00",
                    "text":"阴",
                    "code":"9",
                    "temperature":"22",
                    "humidity":"78",
                    "wind_direction":"东",
                    "wind_speed":"17.53"
                },
                {
                    "time":"2022-09-03T21:00:00+08:00",
                    "text":"阴",
                    "code":"9",
                    "temperature":"22",
                    "humidity":"78",
                    "wind_direction":"东",
                    "wind_speed":"15.7"
                }
            ]
        }
    ]
}

未来七天天气预报

{
    "results":[
        {
            "location":{
                "id":"WWYMRT0VRMUG",
                "name":"大连",
                "country":"CN",
                "path":"大连,大连,辽宁,中国",
                "timezone":"Asia/Shanghai",
                "timezone_offset":"+08:00"
            },
            "daily":[
                {
                    "date":"2022-09-02",
                    "text_day":"晴",
                    "code_day":"0",
                    "text_night":"阴",
                    "code_night":"9",
                    "high":"23",
                    "low":"17",
                    "rainfall":"0.00",
                    "precip":"0.00",
                    "wind_direction":"东北",
                    "wind_direction_degree":"65",
                    "wind_speed":"6.41",
                    "wind_scale":"2",
                    "humidity":"60"
                },
                {
                    "date":"2022-09-03",
                    "text_day":"阴",
                    "code_day":"9",
                    "text_night":"阴",
                    "code_night":"9",
                    "high":"24",
                    "low":"21",
                    "rainfall":"0.00",
                    "precip":"0.00",
                    "wind_direction":"东",
                    "wind_direction_degree":"86",
                    "wind_speed":"19.44",
                    "wind_scale":"3",
                    "humidity":"83"
                },
                {
                    "date":"2022-09-04",
                    "text_day":"小雨",
                    "code_day":"13",
                    "text_night":"阴",
                    "code_night":"9",
                    "high":"22",
                    "low":"19",
                    "rainfall":"0.69",
                    "precip":"0.91",
                    "wind_direction":"东北",
                    "wind_direction_degree":"51",
                    "wind_speed":"15.19",
                    "wind_scale":"3",
                    "humidity":"85"
                },
                {
                    "date":"2022-09-05",
                    "text_day":"小雨",
                    "code_day":"13",
                    "text_night":"晴",
                    "code_night":"1",
                    "high":"24",
                    "low":"18",
                    "rainfall":"0.14",
                    "precip":"0.56",
                    "wind_direction":"西北",
                    "wind_direction_degree":"321",
                    "wind_speed":"18.54",
                    "wind_scale":"3",
                    "humidity":"86"
                },
                {
                    "date":"2022-09-06",
                    "text_day":"晴",
                    "code_day":"0",
                    "text_night":"晴",
                    "code_night":"1",
                    "high":"23",
                    "low":"20",
                    "rainfall":"0.00",
                    "precip":"0.00",
                    "wind_direction":"西",
                    "wind_direction_degree":"288",
                    "wind_speed":"19.66",
                    "wind_scale":"3",
                    "humidity":"62"
                },
                {
                    "date":"2022-09-07",
                    "text_day":"多云",
                    "code_day":"4",
                    "text_night":"阴",
                    "code_night":"9",
                    "high":"26",
                    "low":"20",
                    "rainfall":"0.00",
                    "precip":"0.00",
                    "wind_direction":"西南",
                    "wind_direction_degree":"229",
                    "wind_speed":"14.04",
                    "wind_scale":"3",
                    "humidity":"73"
                },
                {
                    "date":"2022-09-08",
                    "text_day":"阴",
                    "code_day":"9",
                    "text_night":"阴",
                    "code_night":"9",
                    "high":"25",
                    "low":"22",
                    "rainfall":"0.00",
                    "precip":"0.00",
                    "wind_direction":"东南",
                    "wind_direction_degree":"149",
                    "wind_speed":"6.77",
                    "wind_scale":"2",
                    "humidity":"71"
                }
            ],
            "last_update":"2022-09-02T20:00:00+08:00"
        }
    ]
}

天气详情页

包括实况天气、逐24小时天气预、未来七天天气预报三部分数据

效果图

获取JSON数据

首先通过OKHttp使用get方式获取数据，不同的天气数据，传入不同的url，所以把请求作为公共方式，然后通过写一个回调接口，将数据源回调至外部。

public void Post(String url, HttpCallback callback){
        OkHttpClient client = new OkHttpClient();

        final Request request = new Request.Builder()
                .url(url)
                .get()
                .build();

        client.newCall(request).enqueue(new Callback() {
            @Override
            public void onFailure(Call call, IOException e) {
                callback.onFailed(ErrorCodeParam.NetworkError);
            }

            @Override
            public void onResponse(Call call, Response response) throws IOException {
                int code = response.code();
                if (code == 200){
                    String json = response.body().string();
                    callback.onResponse(json.toString());
                }else {
                    callback.onFailed(ErrorCodeParam.PostError);
                }
            }
        });
    }

URL请求

实况天气URL

具体方法参考官网
官网所展示的请求参数并不是需要所有都添加，例如语言都有默认想，一般不需要提交，在官网也有标注，此处传入key(心知天气API密钥)和城市(你所想获取天气预报的城市，可以是汉字)

/**
     * 获取当前实况天气*/
    public String getNowUrl(String location) {
        HttpUrl.Builder builder = HttpUrl.parse(WeatherParam.NowWeatherURL).newBuilder();
        builder.addQueryParameter("key",WeatherParam.weatherToken);
        builder.addQueryParameter("location",location);

        return builder.build().toString();
    }

逐24小时天气预报URL

具体参考官网
前两项参数与实况天气一致，第三个参数是你需要获取多少小时的天气预报数据，以当前时间为第一个小时；例如：你传入5个小时，你当时系统时间是9点，那么返回的第一个数据就是9点，第二个为10…第5个为13点；以此类推

 /**
     *  获取24小时天气情况*/
    public String getHourly24Url(String location,int hours) {
        HttpUrl.Builder builder = HttpUrl.parse(WeatherParam.Hourly24WeatherURL).newBuilder();
        builder.addQueryParameter("key",WeatherParam.weatherToken);
        builder.addQueryParameter("location",location);
        builder.addQueryParameter("hours",hours+"");

        return builder.build().toString();
    }

未来七天天气预报URL

具体参考官网
第三个参数与逐小时天气预报的小时一致，以当前日期为第一天；请求天数好像最大为15天

   /**
     * 获取未来七天天气预报情况*/
    public String getFuture7Url(String location,int days) {
        HttpUrl.Builder builder = HttpUrl.parse(WeatherParam.Future7WeatherURL).newBuilder();
        builder.addQueryParameter("key",WeatherParam.weatherToken);
        builder.addQueryParameter("location",location);
        builder.addQueryParameter("days",days+"");

        return builder.build().toString();
    }

解析JSON数据

解析实况天气数据

JSON数据格式在上文有提及，返回的数据较多，我们只需要关于天气的即可，地点可以不解析；此处将数据源解析成具体实体类，依旧通过回调接口，暴露给外部。

 /**
     * 获取当前天气情况
     */
     fun getNowWeather(location: String,callback: WeatherCallback_now) {
        val url = HttpUtils.getInstance().getNowUrl(location)
        Log.d(TAG, "url = $url")
        HttpUtils.getInstance().Post(url, object : HttpCallback {
            override fun onFailed(ErrorCode: Int) {
                callback.onFailed(ErrorCode)
            }
            override fun onResponse(JSONData: String) {
                if (TextUtils.isEmpty(JSONData)) {
                    callback.onFailed(0)
                    return
                }
                Log.d(TAG, "now = $JSONData")
                try {
                    val jsonObject = JSONObject(JSONData)
                    val jsonArray = jsonObject.getJSONArray("results")
                    val now = jsonArray.getJSONObject(0).getJSONObject("now")
                    val time : String = jsonArray.getJSONObject(0).getString("last_update");
                    val bean : WRealTimeBean? = HttpUtils.getInstance().fromJson(
                        now.toString(),
                        WRealTimeBean::class.java
                    )

                    if (bean != null) {
                        bean.last_update = time
                        bean.location = location;
                    }
                    callback.onSuccess(bean)
                } catch (e: JSONException) {
                    e.printStackTrace()
                }
            }
        })
    }

解析逐小时天气预报

步骤与实况天气雷同，区别在于逐小时天气预报返回的数组，所以回调接口，返回也是list数据

/**
     * 获取24小时天气情况
     */
    fun getHourly24Weather(location: String,callback: WeatherCallback_24H) {
        val url = HttpUtils.getInstance().getHourly24Url(location, 24)
        Log.d(TAG, "url = $url")
        HttpUtils.getInstance().Post(url, object : HttpCallback {
            override fun onFailed(ErrorCode: Int) {
                callback.onFailed(ErrorCode)
            }
            override fun onResponse(JSONData: String) {
                if (TextUtils.isEmpty(JSONData)) {
                    callback.onFailed(0)
                    return
                }
                Log.d(TAG, "hourlv24 = $JSONData")
                try {
                    val jsonObject = JSONObject(JSONData)
                    val jsonArray = jsonObject.getJSONArray("results")
                    val hourly24 = jsonArray.getJSONObject(0).getJSONArray("hourly")
                    val bean: MutableList<WHourly24Bean>? = HttpUtils.getInstance().fromListJson(
                        hourly24.toString(),
                        WHourly24Bean::class.java
                    )
                    callback.onSuccess(bean)
                } catch (e: JSONException) {
                    e.printStackTrace()
                }
            }
        })
    }

解析未来七天天气预报

同样返回的是数组数据，完成数据解析并回调；值得注意的是，如果有存在重复的城市名称，返回的数据也是多份，例如请求的城市名称并不精准，本来想请求张家界的天气数据，但是只输入张家二字，系统后台会返回张家界和张家口的数据，所以我们默认取第一个数据源

   /**
     * 获取未来七天天气情况（包括今天）
     */
     fun getFuture7Weather(location: String,callback: WeatherCallback_7D) {
        val url = HttpUtils.getInstance().getFuture7Url(location, 7)
        Log.d(TAG, "url = $url")
        HttpUtils.getInstance().Post(url, object : HttpCallback {
            override fun onFailed(ErrorCode: Int) {
                callback.onFailed(ErrorCode)
            }
            override fun onResponse(JSONData: String) {
                if (TextUtils.isEmpty(JSONData)) {
                    callback.onFailed(0)
                    return
                }
                Log.d(TAG, "future7 = $JSONData")
                try {
                    val jsonObject = JSONObject(JSONData)
                    val jsonArray = jsonObject.getJSONArray("results")
                    val future7 = jsonArray.getJSONObject(0).getJSONArray("daily")
                    val bean: MutableList<WFuture7Bean>? = HttpUtils.getInstance().fromListJson(
                        future7.toString(),
                        WFuture7Bean::class.java
                    )
                    callback.onSuccess(bean)
                } catch (e: JSONException) {
                    e.printStackTrace()
                }
            }
        })
    }

初始化天气详情页

获取当前位置

为了减轻app负重，并未采用高德、百度等API进行位置定位，采用原始的定位方式，使用网络方式进行定位

获取经纬度

获取位置信息需要动态申请位置权限

public String getLocationInfo() {
        if (ActivityCompat.checkSelfPermission(BaseApplication.context,Group_Location[0]) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(BaseApplication.context, Group_Location[1]) != PackageManager.PERMISSION_GRANTED) {
            Log.d(TAG, "Don't apply for these permission");
            return null;
        }

        String strLocation = null;
        try {
            //获取系统的服务，
            locationManager = (LocationManager) BaseApplication.context.getSystemService(Context.LOCATION_SERVICE);
            //创建一个criteria对象
            Criteria criteria = new Criteria();
            criteria.setAccuracy(Criteria.ACCURACY_COARSE);
            //设置不需要获取海拔方向数据
            criteria.setAltitudeRequired(false);
            criteria.setBearingRequired(false);
            //设置允许产生资费
            criteria.setCostAllowed(true);
            //要求低耗电
            criteria.setPowerRequirement(Criteria.POWER_LOW);
            String provider = locationManager.getBestProvider(criteria, true);
            Location location = locationManager.getLastKnownLocation(provider);

            if (location == null)return null;

            //strLocation =  location.getLongitude()+","+location.getLatitude();
            strLocation = convertAddress(BaseApplication.context, location.getLatitude(), location.getLongitude());
            Log.d(TAG, "location is = " + strLocation);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return strLocation;
    }

经纬度转为地理信息

将经纬度转为具体地理信息，由于心知天气API需要提供城市级城市数据，所以我们只需要xx市数据即可

 private String convertAddress(Context context, double latitude, double longitude) {
        Geocoder mGeocoder = new Geocoder(context, Locale.getDefault());
        try {
            List<Address> mAddresses = mGeocoder.getFromLocation(latitude, longitude, 1);
            if (mAddresses != null && mAddresses.size() > 0) {
                Address address = mAddresses.get(0);
                Log.d(TAG, "国家 is " + address.getCountryName());
                Log.d(TAG, "省 is " + address.getAdminArea());
                Log.d(TAG, "市 is " + address.getLocality());
                Log.d(TAG, "区/县 is " + address.getSubLocality());
                Log.d(TAG, "具体 is " + address.getFeatureName());
                return  address.getLocality();
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }

页面初始化

详情页采用的是viewPager添加多个views实现页面滑动；
首先获取数据库内所有存储的城市名称，然后通过get模式获取天气的网络数据，然后填充到adapter中；需要注意的是获取的本地位置在整个app都较为特殊，与其他添加的城市数据存在差距，因为需要改变其显示状态，具体后文会提交，所以并未将此添加到数据库中。

private void initViewPager(){
        dao = new Dao(this);
        locationList = dao.QueryAll();
        location = LocationUtils.getInstance().getLocationInfo();

        if (locationList == null || locationList.size() == 0){
            locationList = new ArrayList<>();
            locationList.add(location);
        }else {
            locationList.add(0,location);
        }

        for (int i = 0; i < locationList.size(); i++) {
            Message message = new Message();
            message.what = WEATHER_Start;
            message.obj = locationList.get(i);
            handler.sendMessage(message);
        }

        adapter.notifyDataSetChanged();
    }

单个页面初始化，通过遍历，将所有页面进行填充；每个界面背景图片会根据心知天气返回天气状态发生变化，由于素材有限，只适配了较为常见的几种状态，例如：晴、多云、阴、雨、雪、雷

 /**
     * viewPager页面添加，包括实况天气数据、预期24小时、预报7天*/
    private void addView(String location){
        View view = LayoutInflater.from(this).inflate(R.layout.activity_main,null,false);

        LinearLayout weatherLayout;
        TextView weatherLocation,weatherTemp,weatherStatus,weatherWindDirection,weatherWindSpeed,weatherCloud,weatherFellLikes,weatherHum,weatherVisibility,weatherPressure;
        RecyclerView weather7D,weather24H;

        weatherLayout = view.findViewById(R.id.mainLinearLayout);
        weatherLocation = view.findViewById(R.id.normal_city);
        weatherTemp = view.findViewById(R.id.normal_temp);
        weatherStatus = view.findViewById(R.id.normal_status);
        weatherWindDirection = view.findViewById(R.id.windDirection);
        weatherWindSpeed = view.findViewById(R.id.windSpeed);
        weatherCloud = view.findViewById(R.id.cloud);
        weatherFellLikes = view.findViewById(R.id.bodyTmp);
        weatherHum = view.findViewById(R.id.hum);
        weatherVisibility = view.findViewById(R.id.visibility);
        weatherPressure = view.findViewById(R.id.pressure);
        weather7D = view.findViewById(R.id.Recycler_7D);
        weather24H = view.findViewById(R.id.Recycler_24H);


        List<WHourly24Bean> hourlyBeanList = new ArrayList<>();
        List<WFuture7Bean> dailyBeanList = new ArrayList<>();

        weather24H.setLayoutManager(new LinearLayoutManager(this, LinearLayoutManager.HORIZONTAL, false));
        Weather24HAdapter  adapter24H = new Weather24HAdapter(hourlyBeanList);
        weather24H.setAdapter(adapter24H);

        weather7D.setLayoutManager(new LinearLayoutManager(this, LinearLayoutManager.VERTICAL, false));
        Weather7DAdapter adapter7D = new Weather7DAdapter(dailyBeanList);
        weather7D.setAdapter(adapter7D);

        viewList.add(view);
        titleList.add(location);

        adapter.notifyDataSetChanged();

        weatherLocation.setText(location);


        JsonUtils.INSTANCE.getNowWeather(location, new WeatherCallback_now() {
            @Override
            public void onFailed(int ErrorCode) {

            }

            @Override
            public void onSuccess(WRealTimeBean bean) {
                if (bean != null){
                    runOnUiThread(()->{
                        weatherTemp.setText(bean.getTemperature() + "°");//温度
                        weatherStatus.setText(bean.getText());//天气状态
                        weatherWindSpeed.setText(bean.getWindSpeed() + "km/h");//风速
                        weatherWindDirection.setText(bean.getWindDirection()+bean.getWindDirectionDegree()+ "°");//风向
                        weatherCloud.setText(bean.getClouds() + "%");//云量
                        weatherFellLikes.setText(bean.getFeelsLike() + "°");//体感温度
                        weatherHum.setText(bean.getHumidity() + "%");//湿度
                        weatherVisibility.setText(bean.getVisibility() + "km");//可见度
                        weatherPressure.setText(bean.getPressure() + "mb");//气压

                        switch (bean.getText()){
                            case "晴":weatherLayout.setBackground(getDrawable(R.drawable.icon_bg_sunny));break;
                            case "多云":weatherLayout.setBackground(getDrawable(R.drawable.icon_bg_cloudy));break;
                            case "阴":weatherLayout.setBackground(getDrawable(R.drawable.icon_bg_cloudy));break;
                            case "雨":weatherLayout.setBackground(getDrawable(R.drawable.icon_bg_big_rain));break;
                            case "雪":weatherLayout.setBackground(getDrawable(R.drawable.icon_bg_snow));break;
                            case "雷":weatherLayout.setBackground(getDrawable(R.drawable.icon_bg_thunder));break;
                        }
                    });
                }else {
                    Log.d(TAG,"bean is empty");
                }
            }
        });

        JsonUtils.INSTANCE.getFuture7Weather(location, new WeatherCallback_7D() {
            @Override
            public void onFailed(int ErrorCode) {

            }

            @Override
            public void onSuccess(List<WFuture7Bean> beanList) {
                if (beanList != null && beanList.size() > 0){
                    if (dailyBeanList != null && dailyBeanList.size() > 0){
                        dailyBeanList.clear();
                    }
                    dailyBeanList.addAll(beanList);
                    runOnUiThread(()->{
                        adapter7D.notifyDataSetChanged();
                    });
                }
            }
        });

        JsonUtils.INSTANCE.getHourly24Weather(location, new WeatherCallback_24H() {
            @Override
            public void onFailed(int ErrorCode) {

            }

            @Override
            public void onSuccess(List<WHourly24Bean> beanList) {
                if (beanList != null && beanList.size() > 0){
                    if (hourlyBeanList != null && hourlyBeanList.size() > 0){
                        hourlyBeanList.clear();
                    }
                    hourlyBeanList.addAll(beanList);
                    runOnUiThread(()->{
                        adapter24H.notifyDataSetChanged();
                    });
                }
            }
        });
    }

ViewPager子页面编辑

view添加和删除都是通过EventBus进行监听，然后操作adapter完成操作

 /**
     * 在城市页面进行数据添加或删除，使用EventBus进行监测*/
    @Subscribe(threadMode = ThreadMode.MAIN,sticky = true)
    public void onEvent(LocationBusBean bean){
        if (bean != null){
            if (bean.getDeletePos() == -1){
                addView(bean.getLocation());
                updateIndicator();
            }else {
                removeView(bean.getLocation());
            }
        }
    }

页面添加

此功能就是重复调用单个views初始化方法，然后使用adapter进行notify和更新指示器即可

页面删除

通过从天气编辑页面点击的城市子项，传过来的城市数据，然后与views存在的数据进行匹配，然后删除对应的界面

   /**
     * 删除viewPager子项*/
    private void removeView(String location){
        int position = titleList.indexOf(location);
        if (position != -1){
            viewList.remove(position);
            titleList.remove(position);
            adapter.notifyDataSetChanged();
        }

        updateIndicator();
    }

指示器

指示器是通过两个xml定义不同的圆，然后通过selector文件进行选择，使用一个LinearLayout控件作为指示器控件，通过传入的指示器个数，添加多个view，然后设置背景为selector文件，通过设置其enable属性，改变圆形状态

  private void updateIndicator(){
        binding.indicatorLayout.removeAllViews();
        List<String> list = dao.QueryAll();

        /**
         * 因为有一个本地位置，所以需要+1*/
        int size = 1;
        if (list != null){
            size = list.size()+1;
        }
        for (int i = 0; i < size; i++) {
            View view = new View(this);
            view.setBackgroundResource(R.drawable.selector_indicator);
            view.setEnabled(false);
            LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(30,30);
            params.rightMargin = 15;
            params.leftMargin = 15;
            binding.indicatorLayout.addView(view,params);
        }
    }

天气编辑页

此页面功能包括searchView和listView匹配搜索、城市天津、城市天气简单版子项显示、天气子项编辑等功能

效果图

简版天气数据

此数据与天气详情页数据请求一致，只是数据更为简单，值得注意的是，从天气详情页传过来的城市，并不显示其具体名称，而是以我的位置代替，因为是子线程加载，获取的数据排列方式不一，所以在展示数据时，需要将本地数据一列移到到最前方。

获取数据并初始化

/**
     * 获取所以数据库中城市的天气*/
    private void getWeatherData() {
        if (dao == null) {
            dao = new Dao(this);
        }

        beanList.clear();//防止数据重复

        List<String> locationList = dao.QueryAll();
        if (locationList == null || locationList.size() == 0) {
            locationList = new ArrayList<>();
        }

        if (locationList.size() > 0) {
            String data = locationList.get(0);
            if (!data.equals(location)) {
                locationList.add(0, location);
            }
        }else {
            locationList.add(location);
        }

        for (int i = 0; i < locationList.size(); i++) {
            postWeather(locationList.get(i), locationList.size());
        }
    }

子项删除

通过EventBus通知天气详情页进行更新

adapter.setDelItemClickListener(new LocationAdapter.OnWeatherItemsClickListener() {
            @Override
            public void onClickListener(int pos, String location) {
                beanList.remove(pos);
                dao.Delete(location);
                adapter.notifyDataSetChanged();

                EventBus.getDefault().postSticky(new LocationBusBean(location, pos));
            }
        });

搜索

效果图

更改SearchView背景和字体样式

定义一个xml文件，然后在SearchView的background属性引用即可改变其背景

 android:background="@drawable/searchview_bg"

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle">
    <corners android:radius="10dp" />
    <solid android:color="@color/searchViewBg" />
</shape>

更改SearchView字体颜色，需要获取其内置的一个控件id，然后通过EditText进行改变即可，TextView也可以

 /**
     * 更改searchView字体颜色
     */
    private void initSearchViewStyle() {
        EditText editText = (EditText) binding.searchView.findViewById(androidx.appcompat.R.id.search_src_text);
        if (editText != null) {
            editText.setTextColor(getColor(R.color.white));
            editText.setHintTextColor(getColor(R.color.searchHintColor));
            editText.setTextSize(14);

            SearchManager searchManager = (SearchManager) getSystemService(SEARCH_SERVICE);
            binding.searchView.setSearchableInfo(searchManager.getSearchableInfo(getComponentName()));
        } else {
            Log.d("MoreLocationActivity", "empty");
        }
    }

搜索初始化

重点在于xml城市列表文件，然后采用默认的adapter作为适配

private void initListView() {
        String[] cityArray = getResources().getStringArray(R.array.city);
        binding.locationList.setAdapter(new ArrayAdapter(this, R.layout.searchview_item, cityArray));
        /**
         * 属性为true表示listview获得当前焦点的时候，与相应用户输入的匹配符进行比对，筛选出匹配的ListView的列表中的项*/
        binding.locationList.setTextFilterEnabled(true);
        binding.searchView.setOnQueryTextListener(this);
        binding.searchView.setSubmitButtonEnabled(false);

        binding.locationList.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
                String str = adapterView.getAdapter().getItem(i).toString();
                if (dao == null) {
                    dao = new Dao(MoreLocationActivity.this);
                }
                boolean flag = dao.Query(str);
                if (flag) {
                    Toast.makeText(MoreLocationActivity.this, "该城市已添加到天气列表，请勿重复添加", Toast.LENGTH_SHORT).show();
                } else {
                    dao.Insert(str);
                    EventBus.getDefault().postSticky(new LocationBusBean(str, -1));
                    handler.sendEmptyMessage(1);
                    Toast.makeText(MoreLocationActivity.this, "添加成功", Toast.LENGTH_SHORT).show();
                }
                binding.locationList.clearTextFilter();
                binding.locationList.setVisibility(View.GONE);
            }
        });
    }

搜索字符监听

一开始那个提示黑框就比较呆，所以可以通过后面语句进行隐藏，因为搜索列表是覆盖简版天气子项的，所以当搜索列表显示时，天气简版隐藏，反之，亦然；

 @Override
    public boolean onQueryTextSubmit(String query) {
        return false;
    }

    @Override
    public boolean onQueryTextChange(String newText) {
        if (TextUtils.isEmpty(newText)) {
            binding.locationList.clearTextFilter();
            binding.locationList.setVisibility(View.GONE);
        } else {
            binding.locationList.setVisibility(View.VISIBLE);
            binding.locationList.setFilterText(newText);
            //隐藏黑框
            binding.locationList.dispatchDisplayHint(View.INVISIBLE);
        }
        return true;
    }

下载地址

Gitte下载链接文章来源地址https://www.toymoban.com/news/detail-425649.html

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