├── .gitignore ├── LICENSE ├── README.md ├── app ├── .gitignore ├── build.gradle ├── proguard-rules.pro └── src │ ├── androidTest │ └── java │ │ └── com │ │ └── aranandroid │ │ └── mvvm │ │ └── ExampleInstrumentedTest.kt │ ├── main │ ├── AndroidManifest.xml │ ├── assets │ │ └── litepal.xml │ ├── java │ │ └── com │ │ │ └── aranandroid │ │ │ └── mvvm │ │ │ ├── BaseApplication.kt │ │ │ ├── data │ │ │ ├── PlaceRepository.kt │ │ │ ├── Resource.kt │ │ │ ├── WeatherRepository.kt │ │ │ ├── db │ │ │ │ ├── ExampleDatabase.kt │ │ │ │ ├── PlaceDao.kt │ │ │ │ └── WeatherDao.kt │ │ │ ├── model │ │ │ │ ├── place │ │ │ │ │ ├── City.kt │ │ │ │ │ ├── County.kt │ │ │ │ │ └── Province.kt │ │ │ │ └── weather │ │ │ │ │ ├── AQI.kt │ │ │ │ │ ├── Basic.kt │ │ │ │ │ ├── Forecast.kt │ │ │ │ │ ├── HeWeather.kt │ │ │ │ │ ├── Now.kt │ │ │ │ │ ├── Suggestion.kt │ │ │ │ │ └── Weather.kt │ │ │ └── network │ │ │ │ ├── ExampleNetwork.kt │ │ │ │ └── api │ │ │ │ ├── PlaceService.kt │ │ │ │ └── WeatherService.kt │ │ │ ├── ui │ │ │ ├── MainActivity.kt │ │ │ ├── MainViewModel.kt │ │ │ ├── area │ │ │ │ ├── ChooseAreaAdapter.kt │ │ │ │ ├── ChooseAreaFragment.kt │ │ │ │ └── ChooseAreaViewModel.kt │ │ │ └── weather │ │ │ │ ├── WeatherActivity.kt │ │ │ │ └── WeatherViewModel.kt │ │ │ └── util │ │ │ └── BindingAdapters.kt │ └── res │ │ ├── drawable-v24 │ │ └── ic_launcher_foreground.xml │ │ ├── drawable-xxhdpi │ │ ├── ic_back.png │ │ └── ic_home.png │ │ ├── drawable │ │ └── ic_launcher_background.xml │ │ ├── layout │ │ ├── activity_main.xml │ │ ├── activity_weather.xml │ │ ├── aqi.xml │ │ ├── choose_area.xml │ │ ├── forecast.xml │ │ ├── forecast_item.xml │ │ ├── now.xml │ │ ├── simple_item.xml │ │ ├── suggestion.xml │ │ └── title.xml │ │ ├── mipmap-hdpi │ │ └── logo.png │ │ ├── mipmap-mdpi │ │ └── logo.png │ │ ├── mipmap-xhdpi │ │ └── logo.png │ │ ├── mipmap-xxhdpi │ │ └── logo.png │ │ ├── mipmap-xxxhdpi │ │ └── logo.png │ │ ├── values │ │ ├── colors.xml │ │ ├── strings.xml │ │ └── styles.xml │ │ └── xml │ │ └── network_security_config.xml │ └── test │ └── java │ └── com │ └── aranandroid │ └── mvvm │ └── ExampleUnitTest.kt ├── build.gradle ├── frist.patch ├── gradle.properties ├── gradle └── wrapper │ ├── gradle-wrapper.jar │ └── gradle-wrapper.properties ├── gradlew ├── gradlew.bat ├── images ├── Screenshot_1.png ├── Screenshot_2.png └── architecture.jpg ├── mvvm ├── .gitignore ├── build.gradle ├── consumer-rules.pro ├── proguard-rules.pro └── src │ ├── androidTest │ └── java │ │ └── com │ │ └── aranandroid │ │ └── mvvm │ │ └── ExampleInstrumentedTest.kt │ ├── main │ ├── AndroidManifest.xml │ ├── java │ │ └── com │ │ │ └── aranandroid │ │ │ └── mvvm │ │ │ ├── MvvmApplication.kt │ │ │ ├── base │ │ │ ├── factory │ │ │ │ └── BaseRepository.kt │ │ │ ├── m │ │ │ │ └── BaseViewModel.kt │ │ │ └── vm │ │ │ │ ├── BaseActivity.kt │ │ │ │ ├── BaseFragment.kt │ │ │ │ └── BaseFragmentActivity.kt │ │ │ ├── live │ │ │ ├── AliveManager.kt │ │ │ ├── AliveReceiver.kt │ │ │ ├── AliveScreenActivity.kt │ │ │ ├── EmptyActivity.kt │ │ │ └── ForgroundService.kt │ │ │ ├── network │ │ │ ├── BaseNetwork.kt │ │ │ └── ServiceCreator.kt │ │ │ ├── permission │ │ │ └── PermissonDialog.kt │ │ │ └── util │ │ │ ├── ActivityLifeCycleCallBackIml.java │ │ │ ├── AppManager.java │ │ │ └── BaseExecutors.kt │ └── res │ │ ├── anim │ │ ├── slide_in_left.xml │ │ ├── slide_in_right.xml │ │ ├── slide_in_zoom.xml │ │ ├── slide_out_left.xml │ │ ├── slide_out_right.xml │ │ └── slide_out_zoom.xml │ │ ├── drawable │ │ ├── custom_dialog_bg.xml │ │ ├── negative_button_bg.xml │ │ └── positive_button_bg.xml │ │ ├── layout │ │ ├── custom_dialog_layout.xml │ │ └── permissions_item.xml │ │ ├── mipmap │ │ └── ic_launcher.png │ │ └── values │ │ ├── styles.xml │ │ └── themes.xml │ └── test │ └── java │ └── com │ └── aranandroid │ └── mvvm │ └── ExampleUnitTest.kt └── settings.gradle /.gitignore: -------------------------------------------------------------------------------- 1 | # 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-------------------------------------------------------------------------------- 1 | # 酷欧天气Jetpack版 2 | 酷欧天气的Jetpack版本实现，采用了MVVM架构。 3 | 4 | ## mvvm使用（mvvm被封装成框架包） 5 | 6 | *build.gradle（主项目）： 7 | 8 | maven { url 'https://jitpack.io' } 9 | 10 | *build.gradle（app）： 11 | 12 | implementation 'com.github.AranAndroid009:Mvvm:1.0.1' 13 | 14 | *网络初始化用： 15 | 16 | 继承 MvvmApplication 然后 ServiceCreator.init("http://guolin.tech/") 17 | 18 | *数据库使用： 19 | 20 | assets文件下创建xml 21 | 22 | 案例： 23 | ``` 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | ``` 33 | #mvvm三部曲： 34 | 35 | *m: 36 | 37 | class ExampleModel : BaseViewModel() 38 | 39 | *v: 40 | ``` 41 | 43 | 44 | 45 | 46 | 47 | 50 | 51 | 52 | ``` 53 | *mv: 54 | ``` 55 | class ExampleActivity : 56 | BaseActivity(R.layout.activity_example) { 57 | override fun onCreate(savedInstanceState: Bundle?) { 58 | super.onCreate(savedInstanceState) 59 | // 必写 60 | binding.viewModel = viewModel 61 | // 必写 62 | binding.lifecycleOwner = this 63 | } 64 | } 65 | 66 | 注意： 67 | app的build.gradle中android {}里边 68 | dataBinding { 69 | enabled true 70 | } 71 | ``` 72 | 73 | 这里我先给出一张酷欧天气Jetpack版的架构设计图，这张图是模仿Google Codelabs的Sunshine项目画出来的。拥有良好架构设计的项目都是可以用简洁清晰的架构图表示出来的，而一个杂乱无章没有架构设计的项目则很难用架构图表示出来。 74 | 75 | 76 | 77 | 上述架构图可能一开始看你会找不着重点，其实这张架构图非常清晰，我来带大家解读一下。 78 | 79 | 首先我们通过这张架构图成功将程序分为了若干层。 80 | 81 | 绿色部分表示的是UI控制层，这部分就是我们平时写的Activity和Fragment。 82 | 83 | 蓝色部分表示的是ViewModel层，ViewModel用于持有和UI元素相关的数据，以保证这些数据在屏幕旋转时不会丢失，以及负责和仓库之间进行通讯。 84 | 85 | 黄色部分表示的是仓库层，仓库层要做的工作是自主判断接口请求的数据应该是从数据库中读取还是从网络中获取，并将数据返回给调用方。如果是从网络中获取的话还要将这些数据存入到数据库当中，以避免下次重复从网络中获取。简而言之，仓库的工作就是在本地和网络数据之间做一个分配和调度的工作，调用方不管你的数据是从何而来的，我只是要从你仓库这里获取数据而已，而仓库则要自主分配如何更好更快地将数据提供给调用方。 86 | 87 | 接下来灰色部分表示是的本地数据层，实现方式并不固定，我使用了LitePal来进行数据持久化处理，你也可以使用别的框架。 88 | 89 | 最后红色部分表示的是网络数据层，这里使用了Retrofit从web服务接口获取数据。 90 | 91 | 借助这张架构图，我想会在很大程度上便于大家理解酷欧天气Jetpack版这个开源项目，而如果你自己编写的项目也能尝试画出这样一张架构图，那么你的代码结构一定是非常不错的。 92 | 93 | 另外对于这张架构图我还有必要再解释一下，图中所有的箭头都是单向的，比方说WeatherActivity指向了WeatherViewModel，表示WeatherActivity持有WeatherViewModel的引用，但是反过来WeatherViewModel不能持有WeatherActivity的引用。其他的几层也是一样的道理，一个箭头就表示持有一个引用。 94 | 95 | 还有，引用不能跨层持有，就比方说UI控制层不能持有仓库层的引用，每一层的组件都只能和它的相邻层交互。 96 | 97 | 大概就介绍这么多吧，剩下的就靠大家自己去阅读源码进行学习了。 98 | 99 | 项目运行截图如下： 100 | 101 |              102 | 103 | 最后，希望这个项目能够帮助大家更好地学习Jetpack，更好地学习MVVM架构。 104 | 105 | 106 | -------------------------------------------------------------------------------- /app/.gitignore: -------------------------------------------------------------------------------- 1 | /build 2 | -------------------------------------------------------------------------------- /app/build.gradle: -------------------------------------------------------------------------------- 1 | apply plugin: 'com.android.application' 2 | 3 | apply plugin: 'kotlin-android' 4 | 5 | apply plugin: 'kotlin-android-extensions' 6 | 7 | apply plugin: 'kotlin-kapt' 8 | 9 | android { 10 | compileSdkVersion 28 11 | defaultConfig { 12 | applicationId "com.aranandroid.mvvm" 13 | minSdkVersion 21 14 | targetSdkVersion 28 15 | versionCode 1 16 | versionName "1.0" 17 | testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner" 18 | } 19 | buildTypes { 20 | release { 21 | minifyEnabled false 22 | proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' 23 | } 24 | } 25 | dataBinding { 26 | enabled true 27 | } 28 | } 29 | 30 | dependencies { 31 | implementation fileTree(dir: 'libs', include: ['*.jar']) 32 | implementation"org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version" 33 | 34 | implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-core:1.1.1' 35 | implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-android:1.1.1' 36 | 37 | implementation 'androidx.appcompat:appcompat:1.1.0-alpha03' 38 | implementation 'androidx.constraintlayout:constraintlayout:2.0.0-alpha3' 39 | implementation project(path: ':mvvm') 40 | implementation 'androidx.swiperefreshlayout:swiperefreshlayout:1.0.0' 41 | testImplementation 'junit:junit:4.12' 42 | androidTestImplementation 'androidx.test:runner:1.1.1' 43 | androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.1' 44 | 45 | implementation 'com.github.bumptech.glide:glide:3.7.0' 46 | 47 | 48 | } 49 | -------------------------------------------------------------------------------- /app/proguard-rules.pro: -------------------------------------------------------------------------------- 1 | # Add project specific ProGuard rules here. 2 | # You can control the set of applied configuration files using the 3 | # proguardFiles setting in build.gradle. 4 | # 5 | # For more details, see 6 | # http://developer.android.com/guide/developing/tools/proguard.html 7 | 8 | # If your project uses WebView with JS, uncomment the following 9 | # and specify the fully qualified class name to the JavaScript interface 10 | # class: 11 | #-keepclassmembers class fqcn.of.javascript.interface.for.webview { 12 | # public *; 13 | #} 14 | 15 | # Uncomment this to preserve the line number information for 16 | # debugging stack traces. 17 | #-keepattributes SourceFile,LineNumberTable 18 | 19 | # If you keep the line number information, uncomment this to 20 | # hide the original source file name. 21 | #-renamesourcefileattribute SourceFile 22 | -------------------------------------------------------------------------------- /app/src/androidTest/java/com/aranandroid/mvvm/ExampleInstrumentedTest.kt: -------------------------------------------------------------------------------- 1 | package com.aranandroid.mvvm 2 | 3 | import androidx.test.InstrumentationRegistry 4 | import androidx.test.runner.AndroidJUnit4 5 | 6 | import org.junit.Test 7 | import org.junit.runner.RunWith 8 | 9 | import org.junit.Assert.* 10 | 11 | /** 12 | * Instrumented test, which will execute on an Android device. 13 | * 14 | * See [testing documentation](http://d.android.com/tools/testing). 15 | */ 16 | @RunWith(AndroidJUnit4::class) 17 | class ExampleInstrumentedTest { 18 | @Test 19 | fun useAppContext() { 20 | // Context of the app under test. 21 | val appContext = InstrumentationRegistry.getTargetContext() 22 | assertEquals("com.coolweather.coolweatherjetpack", appContext.packageName) 23 | } 24 | } 25 | -------------------------------------------------------------------------------- /app/src/main/AndroidManifest.xml: -------------------------------------------------------------------------------- 1 | 2 | 4 | 5 | 6 | 7 | 8 | 9 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | -------------------------------------------------------------------------------- /app/src/main/assets/litepal.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | -------------------------------------------------------------------------------- /app/src/main/java/com/aranandroid/mvvm/BaseApplication.kt: -------------------------------------------------------------------------------- 1 | package com.aranandroid.mvvm 2 | 3 | import android.annotation.SuppressLint 4 | import android.content.Context 5 | import com.aranandroid.mvvm.data.network.ServiceCreator 6 | 7 | class BaseApplication : MvvmApplication() { 8 | 9 | override fun onCreate() { 10 | super.onCreate() 11 | context = this 12 | // 初始化网络 13 | ServiceCreator.init("http://guolin.tech/") 14 | 15 | } 16 | 17 | companion object { 18 | @SuppressLint("StaticFieldLeak") 19 | lateinit var context: Context 20 | } 21 | 22 | } -------------------------------------------------------------------------------- /app/src/main/java/com/aranandroid/mvvm/data/PlaceRepository.kt: -------------------------------------------------------------------------------- 1 | package com.aranandroid.mvvm.data 2 | 3 | import com.aranandroid.mvvm.data.db.PlaceDao 4 | import com.aranandroid.mvvm.data.network.ExampleNetwork 5 | import kotlinx.coroutines.Dispatchers 6 | import kotlinx.coroutines.withContext 7 | 8 | /** 9 | * 地方厂库 10 | * 先获取数据库数据 获取不到获取网络数据 11 | */ 12 | class PlaceRepository private constructor(private val placeDao: PlaceDao, private val network: ExampleNetwork) { 13 | 14 | suspend fun getProvinceList() = withContext(Dispatchers.IO) { 15 | var list = placeDao.getProvinceList() 16 | if (list.isEmpty()) { 17 | list = network.fetchProvinceList() 18 | placeDao.saveProvinceList(list) 19 | } 20 | list 21 | } 22 | 23 | suspend fun getCityList(provinceId: Int) = withContext(Dispatchers.IO) { 24 | var list = placeDao.getCityList(provinceId) 25 | if (list.isEmpty()) { 26 | list = network.fetchCityList(provinceId) 27 | list.forEach { it.provinceId = provinceId } 28 | placeDao.saveCityList(list) 29 | } 30 | list 31 | } 32 | 33 | suspend fun getCountyList(provinceId: Int, cityId: Int) = withContext(Dispatchers.IO) { 34 | var list = placeDao.getCountyList(cityId) 35 | if (list.isEmpty()) { 36 | list = network.fetchCountyList(provinceId, cityId) 37 | list.forEach { it.cityId = cityId } 38 | placeDao.saveCountyList(list) 39 | } 40 | list 41 | } 42 | 43 | companion object { 44 | 45 | private var instance: PlaceRepository? = null 46 | 47 | fun getInstance(placeDao: PlaceDao, network: ExampleNetwork): PlaceRepository { 48 | if (instance == null) { 49 | synchronized(PlaceRepository::class.java) { 50 | if (instance == null) { 51 | instance = PlaceRepository(placeDao, network) 52 | } 53 | } 54 | } 55 | return instance!! 56 | } 57 | 58 | } 59 | 60 | } -------------------------------------------------------------------------------- /app/src/main/java/com/aranandroid/mvvm/data/Resource.kt: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright (C) 2017 The Android Open Source Project 3 | * 4 | * Licensed under the Apache License, Version 2.0 (the "License"); 5 | * you may not use this file except in compliance with the License. 6 | * You may obtain a copy of the License at 7 | * 8 | * http://www.apache.org/licenses/LICENSE-2.0 9 | * 10 | * Unless required by applicable law or agreed to in writing, software 11 | * distributed under the License is distributed on an "AS IS" BASIS, 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 | * See the License for the specific language governing permissions and 14 | * limitations under the License. 15 | */ 16 | 17 | package com.aranandroid.mvvm.data 18 | 19 | /** 20 | * A generic class that holds a value with its loading status. 21 | * @param 22 | */ 23 | data class Resource(val status: Int, val data: T?, val message: String?) { 24 | // 伴生类 静态变量使用 25 | companion object { 26 | const val SUCCESS = 0 27 | const val ERROR = 1 28 | const val LOADING = 2 29 | 30 | fun success(data: T?) = Resource(SUCCESS, data, null) 31 | 32 | fun error(msg: String, data: T?) = Resource(ERROR, data, msg) 33 | 34 | fun loading(data: T?) = Resource(LOADING, data, null) 35 | } 36 | } 37 | -------------------------------------------------------------------------------- /app/src/main/java/com/aranandroid/mvvm/data/WeatherRepository.kt: -------------------------------------------------------------------------------- 1 | package com.aranandroid.mvvm.data 2 | 3 | import com.aranandroid.mvvm.data.db.WeatherDao 4 | import com.aranandroid.mvvm.data.model.weather.Weather 5 | import com.aranandroid.mvvm.data.network.ExampleNetwork 6 | import com.aranandroid.mvvm.base.factory.BaseRepository 7 | import com.aranandroid.mvvm.ui.weather.WeatherViewModel 8 | import kotlinx.coroutines.Dispatchers 9 | import kotlinx.coroutines.withContext 10 | 11 | /** 12 | * 天气数据工厂类 13 | * 先获取数据库数据 获取不到获取网络数据 14 | */ 15 | class WeatherRepository private constructor(private val weatherDao: WeatherDao, private val network: ExampleNetwork): 16 | BaseRepository() { 17 | 18 | suspend fun getWeather(weatherId: String): Weather { 19 | var weather = weatherDao.getCachedWeatherInfo() 20 | if (weather == null) weather = requestWeather(weatherId) 21 | return weather 22 | } 23 | 24 | suspend fun refreshWeather(weatherId: String) = requestWeather(weatherId) 25 | 26 | suspend fun getBingPic(): String { 27 | var url = weatherDao.getCachedBingPic() 28 | if (url == null) url = requestBingPic() 29 | return url 30 | } 31 | // suspend 声明挂起函数 32 | suspend fun refreshBingPic() = requestBingPic() 33 | 34 | fun isWeatherCached() = weatherDao.getCachedWeatherInfo() != null 35 | 36 | fun getCachedWeather() = weatherDao.getCachedWeatherInfo()!! 37 | 38 | private suspend fun requestWeather(weatherId: String) = withContext(Dispatchers.IO) { 39 | val heWeather = network.fetchWeather(weatherId) 40 | val weather = heWeather.weather!![0] 41 | weatherDao.cacheWeatherInfo(weather) 42 | weather 43 | } 44 | 45 | 46 | /** 47 | * suspend 声明挂起函数 48 | * withContext(Dispatchers.IO) 切换耗时线程 49 | * 四类协程 50 | * runBlocking 阻塞 无返回值 51 | * launch 非阻塞 无返回值 52 | * withContext 串行 返回值 53 | * async 并行 返回值 54 | */ 55 | 56 | private suspend fun requestBingPic() = withContext(Dispatchers.IO) { 57 | val url = network.fetchBingPic() 58 | // 保存到数据库 59 | weatherDao.cacheBingPic(url) 60 | url 61 | } 62 | 63 | companion object { 64 | 65 | private lateinit var instance: WeatherRepository 66 | 67 | fun getInstance(weatherDao: WeatherDao, network: ExampleNetwork): WeatherRepository { 68 | if (!::instance.isInitialized) { 69 | synchronized(WeatherRepository::class.java) { 70 | if (!::instance.isInitialized) { 71 | instance = WeatherRepository(weatherDao, network) 72 | } 73 | } 74 | } 75 | return instance 76 | } 77 | 78 | } 79 | 80 | } -------------------------------------------------------------------------------- /app/src/main/java/com/aranandroid/mvvm/data/db/ExampleDatabase.kt: -------------------------------------------------------------------------------- 1 | package com.aranandroid.mvvm.data.db 2 | 3 | /** 4 | * 案例 5 | */ 6 | object ExampleDatabase { 7 | 8 | private var placeDao: PlaceDao? = null 9 | 10 | private var weatherDao: WeatherDao? = null 11 | 12 | fun getPlaceDao(): PlaceDao { 13 | if (placeDao == null) { 14 | placeDao = PlaceDao() 15 | } 16 | return placeDao!! 17 | } 18 | 19 | fun getWeatherDao(): WeatherDao { 20 | if (weatherDao == null) weatherDao = WeatherDao() 21 | return weatherDao!! 22 | } 23 | 24 | } -------------------------------------------------------------------------------- /app/src/main/java/com/aranandroid/mvvm/data/db/PlaceDao.kt: -------------------------------------------------------------------------------- 1 | package com.aranandroid.mvvm.data.db 2 | 3 | import com.aranandroid.mvvm.data.model.place.City 4 | import com.aranandroid.mvvm.data.model.place.County 5 | import com.aranandroid.mvvm.data.model.place.Province 6 | import org.litepal.LitePal 7 | 8 | class PlaceDao { 9 | 10 | fun getProvinceList(): MutableList = LitePal.findAll(Province::class.java) 11 | 12 | fun getCityList(provinceId: Int): MutableList = LitePal.where("provinceId = ?", provinceId.toString()).find(City::class.java) 13 | 14 | fun getCountyList(cityId: Int): MutableList = LitePal.where("cityId = ?", cityId.toString()).find(County::class.java) 15 | 16 | fun saveProvinceList(provinceList: List?) { 17 | if (provinceList != null && provinceList.isNotEmpty()) { 18 | LitePal.saveAll(provinceList) 19 | } 20 | } 21 | 22 | fun saveCityList(cityList: List?) { 23 | if (cityList != null && cityList.isNotEmpty()) { 24 | LitePal.saveAll(cityList) 25 | } 26 | } 27 | 28 | fun saveCountyList(countyList: List?) { 29 | if (countyList != null && countyList.isNotEmpty()) { 30 | LitePal.saveAll(countyList) 31 | } 32 | } 33 | 34 | } -------------------------------------------------------------------------------- /app/src/main/java/com/aranandroid/mvvm/data/db/WeatherDao.kt: -------------------------------------------------------------------------------- 1 | package com.aranandroid.mvvm.data.db 2 | 3 | import android.content.SharedPreferences 4 | import android.preference.PreferenceManager 5 | import com.aranandroid.mvvm.BaseApplication 6 | import com.aranandroid.mvvm.data.model.weather.Weather 7 | import com.google.gson.Gson 8 | 9 | class WeatherDao { 10 | 11 | fun cacheWeatherInfo(weather: Weather?) { 12 | if (weather == null) return 13 | PreferenceManager.getDefaultSharedPreferences(BaseApplication.context).edit { 14 | val weatherInfo = Gson().toJson(weather) 15 | putString("weather", weatherInfo) 16 | } 17 | } 18 | 19 | fun getCachedWeatherInfo(): Weather? { 20 | val weatherInfo = PreferenceManager.getDefaultSharedPreferences(BaseApplication.context).getString("weather", null) 21 | if (weatherInfo != null) { 22 | return Gson().fromJson(weatherInfo, Weather::class.java) 23 | } 24 | return null 25 | } 26 | 27 | fun cacheBingPic(bingPic: String?) { 28 | if (bingPic == null) return 29 | // SharedPreferences 保存数据 30 | PreferenceManager.getDefaultSharedPreferences(BaseApplication.context).edit { 31 | putString("bing_pic", bingPic) 32 | } 33 | } 34 | 35 | fun getCachedBingPic(): String? = PreferenceManager.getDefaultSharedPreferences(BaseApplication.context).getString("bing_pic", null) 36 | 37 | private fun SharedPreferences.edit(action: SharedPreferences.Editor.() -> Unit) { 38 | val editor = edit() 39 | action(editor) 40 | editor.apply() 41 | } 42 | 43 | } -------------------------------------------------------------------------------- /app/src/main/java/com/aranandroid/mvvm/data/model/place/City.kt: -------------------------------------------------------------------------------- 1 | package com.aranandroid.mvvm.data.model.place 2 | 3 | import com.google.gson.annotations.SerializedName 4 | import org.litepal.crud.LitePalSupport 5 | 6 | class City ( @SerializedName("name") val cityName: String, @SerializedName("id") val cityCode: Int) : LitePalSupport() { 7 | @Transient val id = 0 8 | var provinceId = 0 9 | } -------------------------------------------------------------------------------- /app/src/main/java/com/aranandroid/mvvm/data/model/place/County.kt: -------------------------------------------------------------------------------- 1 | package com.aranandroid.mvvm.data.model.place 2 | 3 | import com.google.gson.annotations.SerializedName 4 | import org.litepal.crud.LitePalSupport 5 | 6 | class County (@SerializedName("name") val countyName: String, @SerializedName("weather_id") val weatherId: String) : LitePalSupport() { 7 | @Transient val id = 0 8 | var cityId = 0 9 | } -------------------------------------------------------------------------------- /app/src/main/java/com/aranandroid/mvvm/data/model/place/Province.kt: -------------------------------------------------------------------------------- 1 | package com.aranandroid.mvvm.data.model.place 2 | 3 | import com.google.gson.annotations.SerializedName 4 | import org.litepal.crud.LitePalSupport 5 | 6 | class Province (@SerializedName("name") val provinceName: String, @SerializedName("id") val provinceCode: Int) : LitePalSupport() { 7 | @Transient val id = 0 8 | } -------------------------------------------------------------------------------- /app/src/main/java/com/aranandroid/mvvm/data/model/weather/AQI.kt: -------------------------------------------------------------------------------- 1 | package com.aranandroid.mvvm.data.model.weather 2 | 3 | class AQI { 4 | lateinit var city: AQICity 5 | 6 | inner class AQICity { 7 | var aqi = "" 8 | var pm25 = "" 9 | } 10 | } -------------------------------------------------------------------------------- /app/src/main/java/com/aranandroid/mvvm/data/model/weather/Basic.kt: -------------------------------------------------------------------------------- 1 | package com.aranandroid.mvvm.data.model.weather 2 | 3 | import com.google.gson.annotations.SerializedName 4 | 5 | class Basic { 6 | @SerializedName("city") 7 | var cityName = "" 8 | @SerializedName("id") 9 | var weatherId = "" 10 | lateinit var update: Update 11 | 12 | inner class Update { 13 | @SerializedName("loc") 14 | var updateTime = "" 15 | 16 | fun time() = updateTime.split(" ")[1] 17 | } 18 | } -------------------------------------------------------------------------------- /app/src/main/java/com/aranandroid/mvvm/data/model/weather/Forecast.kt: -------------------------------------------------------------------------------- 1 | package com.aranandroid.mvvm.data.model.weather 2 | 3 | import com.google.gson.annotations.SerializedName 4 | 5 | class Forecast { 6 | var date: String = "" 7 | @SerializedName("tmp") 8 | lateinit var temperature: Temperature 9 | @SerializedName("cond") 10 | lateinit var more: More 11 | 12 | inner class Temperature { 13 | var max = "" 14 | var min = "" 15 | } 16 | 17 | inner class More { 18 | @SerializedName("txt_d") 19 | var info = "" 20 | } 21 | } -------------------------------------------------------------------------------- /app/src/main/java/com/aranandroid/mvvm/data/model/weather/HeWeather.kt: -------------------------------------------------------------------------------- 1 | package com.aranandroid.mvvm.data.model.weather 2 | 3 | import com.google.gson.annotations.SerializedName 4 | 5 | class HeWeather { 6 | 7 | @SerializedName("HeWeather") 8 | var weather: List? = null 9 | 10 | } -------------------------------------------------------------------------------- /app/src/main/java/com/aranandroid/mvvm/data/model/weather/Now.kt: -------------------------------------------------------------------------------- 1 | package com.aranandroid.mvvm.data.model.weather 2 | 3 | import com.google.gson.annotations.SerializedName 4 | 5 | class Now { 6 | @SerializedName("tmp") 7 | var temperature = "" 8 | @SerializedName("cond") 9 | lateinit var more: More 10 | 11 | fun degree() = "$temperature℃" 12 | 13 | inner class More { 14 | @SerializedName("txt") 15 | var info = "" 16 | } 17 | } -------------------------------------------------------------------------------- /app/src/main/java/com/aranandroid/mvvm/data/model/weather/Suggestion.kt: -------------------------------------------------------------------------------- 1 | package com.aranandroid.mvvm.data.model.weather 2 | 3 | import com.google.gson.annotations.SerializedName 4 | 5 | class Suggestion { 6 | @SerializedName("comf") 7 | lateinit var comfort: Comfort 8 | @SerializedName("cw") 9 | lateinit var carWash: CarWash 10 | lateinit var sport: Sport 11 | 12 | inner class Comfort { 13 | @SerializedName("txt") 14 | var info = "" 15 | } 16 | 17 | inner class CarWash { 18 | @SerializedName("txt") 19 | var info = "" 20 | } 21 | 22 | inner class Sport { 23 | @SerializedName("txt") 24 | var info = "" 25 | } 26 | } -------------------------------------------------------------------------------- /app/src/main/java/com/aranandroid/mvvm/data/model/weather/Weather.kt: -------------------------------------------------------------------------------- 1 | package com.aranandroid.mvvm.data.model.weather 2 | 3 | import com.google.gson.annotations.SerializedName 4 | 5 | class Weather { 6 | var status = "" 7 | lateinit var basic: Basic 8 | lateinit var aqi: AQI 9 | lateinit var now: Now 10 | lateinit var suggestion: Suggestion 11 | @SerializedName("daily_forecast") 12 | lateinit var forecastList: List 13 | } -------------------------------------------------------------------------------- /app/src/main/java/com/aranandroid/mvvm/data/network/ExampleNetwork.kt: -------------------------------------------------------------------------------- 1 | package com.aranandroid.mvvm.data.network 2 | 3 | import com.aranandroid.mvvm.data.network.api.PlaceService 4 | import com.aranandroid.mvvm.data.network.api.WeatherService 5 | 6 | class ExampleNetwork : BaseNetwork() { 7 | 8 | private val placeService = ServiceCreator.create(PlaceService::class.java) 9 | 10 | private val weatherService = ServiceCreator.create(WeatherService::class.java) 11 | 12 | suspend fun fetchProvinceList() = placeService.getProvinces().await() 13 | 14 | suspend fun fetchCityList(provinceId: Int) = placeService.getCities(provinceId).await() 15 | 16 | suspend fun fetchCountyList(provinceId: Int, cityId: Int) = placeService.getCounties(provinceId, cityId).await() 17 | 18 | suspend fun fetchWeather(weatherId: String) = weatherService.getWeather(weatherId).await() 19 | 20 | suspend fun fetchBingPic() = weatherService.getBingPic().await() 21 | 22 | // 伴生类 静态方法 单列 23 | companion object { 24 | 25 | private var network: ExampleNetwork? = null 26 | 27 | fun getInstance(): ExampleNetwork { 28 | if (network == null) { 29 | synchronized(BaseNetwork::class.java) { 30 | if (network == null) { 31 | network = ExampleNetwork() 32 | } 33 | } 34 | } 35 | return network!! 36 | } 37 | 38 | } 39 | 40 | } -------------------------------------------------------------------------------- /app/src/main/java/com/aranandroid/mvvm/data/network/api/PlaceService.kt: -------------------------------------------------------------------------------- 1 | package com.aranandroid.mvvm.data.network.api 2 | 3 | import com.aranandroid.mvvm.data.model.place.City 4 | import com.aranandroid.mvvm.data.model.place.County 5 | import com.aranandroid.mvvm.data.model.place.Province 6 | import retrofit2.Call 7 | import retrofit2.http.GET 8 | import retrofit2.http.Path 9 | 10 | interface PlaceService { 11 | 12 | @GET("api/china") 13 | fun getProvinces(): Call> 14 | 15 | @GET("api/china/{provinceId}") 16 | fun getCities(@Path("provinceId") provinceId: Int): Call> 17 | 18 | @GET("api/china/{provinceId}/{cityId}") 19 | fun getCounties(@Path("provinceId") provinceId: Int, @Path("cityId") cityId: Int): Call> 20 | 21 | } -------------------------------------------------------------------------------- /app/src/main/java/com/aranandroid/mvvm/data/network/api/WeatherService.kt: -------------------------------------------------------------------------------- 1 | package com.aranandroid.mvvm.data.network.api 2 | 3 | import com.aranandroid.mvvm.data.model.weather.HeWeather 4 | import retrofit2.Call 5 | import retrofit2.http.GET 6 | import retrofit2.http.Query 7 | 8 | interface WeatherService { 9 | 10 | @GET("api/weather") 11 | fun getWeather(@Query("cityid") weatherId: String): Call 12 | // 网络请求返回一个 Call对象 13 | @GET("api/bing_pic") 14 | fun getBingPic(): Call 15 | 16 | } -------------------------------------------------------------------------------- /app/src/main/java/com/aranandroid/mvvm/ui/MainActivity.kt: -------------------------------------------------------------------------------- 1 | package com.aranandroid.mvvm.ui 2 | 3 | import android.Manifest 4 | import android.os.Bundle 5 | import com.aranandroid.mvvm.R 6 | import com.aranandroid.mvvm.ui.weather.WeatherActivity 7 | import android.content.Intent 8 | import android.widget.Toast 9 | import com.aranandroid.mvvm.base.vm.BaseActivity 10 | import com.aranandroid.mvvm.databinding.ActivityMainBinding 11 | import com.aranandroid.mvvm.permission.PermissonDialog 12 | import com.aranandroid.mvvm.ui.area.ChooseAreaFragment 13 | import com.permissionx.guolindev.PermissionX 14 | 15 | 16 | class MainActivity : BaseActivity(R.layout.activity_main) { 17 | 18 | //测试 19 | override fun onCreate(savedInstanceState: Bundle?) { 20 | super.onCreate(savedInstanceState) 21 | //请求权限 22 | registerPermissions() 23 | if (viewModel.isWeatherCached()) { 24 | val intent = Intent(this, WeatherActivity::class.java) 25 | startActivity(intent) 26 | finish() 27 | } else { 28 | supportFragmentManager.beginTransaction().replace(binding.container.id, ChooseAreaFragment()).commit() 29 | } 30 | 31 | } 32 | 33 | private fun registerPermissions() { 34 | PermissionX.init(this).permissions( 35 | Manifest.permission.WRITE_EXTERNAL_STORAGE, 36 | Manifest.permission.READ_EXTERNAL_STORAGE 37 | ) 38 | .onExplainRequestReason { scope, deniedList, beforeRequest -> 39 | val message = "PermissionX需要您同意以下权限才能正常使用" 40 | val dialog = PermissonDialog(this, message, deniedList) 41 | scope.showRequestReasonDialog(dialog) 42 | }.onForwardToSettings { scope, deniedList -> 43 | val message = "您需要去设置中手动开启以下权限" 44 | val dialog = PermissonDialog(this, message, deniedList) 45 | scope.showForwardToSettingsDialog(dialog) 46 | }.request { allGranted, grantedList, deniedList -> 47 | if (allGranted) { 48 | Toast.makeText(this, "所有申请的权限都已通过", Toast.LENGTH_SHORT).show() 49 | } else { 50 | Toast.makeText(this, "您拒绝了如下权限：$deniedList", Toast.LENGTH_SHORT).show() 51 | } 52 | } 53 | } 54 | } 55 | -------------------------------------------------------------------------------- /app/src/main/java/com/aranandroid/mvvm/ui/MainViewModel.kt: -------------------------------------------------------------------------------- 1 | package com.aranandroid.mvvm.ui 2 | 3 | import com.aranandroid.mvvm.base.m.BaseViewModel 4 | import com.aranandroid.mvvm.data.WeatherRepository 5 | import com.aranandroid.mvvm.data.db.ExampleDatabase 6 | import com.aranandroid.mvvm.data.network.ExampleNetwork 7 | 8 | class MainViewModel() : BaseViewModel() { 9 | private val repository: WeatherRepository = WeatherRepository.getInstance(ExampleDatabase.getWeatherDao(), ExampleNetwork.getInstance()) 10 | 11 | fun isWeatherCached() = repository.isWeatherCached() 12 | 13 | } -------------------------------------------------------------------------------- /app/src/main/java/com/aranandroid/mvvm/ui/area/ChooseAreaAdapter.kt: -------------------------------------------------------------------------------- 1 | package com.aranandroid.mvvm.ui.area 2 | 3 | import android.content.Context 4 | import android.view.LayoutInflater 5 | import android.view.View 6 | import android.view.ViewGroup 7 | import android.widget.ArrayAdapter 8 | import androidx.databinding.DataBindingUtil 9 | import com.aranandroid.mvvm.databinding.SimpleItemBinding 10 | 11 | class ChooseAreaAdapter(context: Context, private val resId: Int, private val dataList: List) : ArrayAdapter(context, resId, dataList) { 12 | 13 | override fun getView(position: Int, convertView: View?, parent: ViewGroup): View { 14 | val bind: SimpleItemBinding? 15 | val view = if (convertView == null) { 16 | val v = LayoutInflater.from(context).inflate(resId, parent, false) 17 | bind = DataBindingUtil.bind(v) 18 | v.tag = bind 19 | v 20 | } else { 21 | bind = convertView.tag as SimpleItemBinding 22 | convertView 23 | } 24 | bind?.data = dataList[position] 25 | return view 26 | } 27 | 28 | } -------------------------------------------------------------------------------- /app/src/main/java/com/aranandroid/mvvm/ui/area/ChooseAreaFragment.kt: -------------------------------------------------------------------------------- 1 | package com.aranandroid.mvvm.ui.area 2 | 3 | import android.app.ProgressDialog 4 | import android.content.Intent 5 | import android.os.Bundle 6 | import android.view.View 7 | import android.widget.* 8 | import androidx.lifecycle.Observer 9 | import com.aranandroid.mvvm.R 10 | import com.aranandroid.mvvm.databinding.ChooseAreaBindingImpl 11 | import com.aranandroid.mvvm.ui.MainActivity 12 | import com.aranandroid.mvvm.base.vm.BaseFragment 13 | import com.aranandroid.mvvm.ui.weather.WeatherActivity 14 | import kotlinx.android.synthetic.main.activity_weather.* 15 | import kotlinx.android.synthetic.main.choose_area.* 16 | 17 | class ChooseAreaFragment : 18 | BaseFragment(R.layout.choose_area) { 19 | private var progressDialog: ProgressDialog? = null 20 | private lateinit var adapter: ArrayAdapter 21 | 22 | 23 | override fun onViewCreated(view: View, savedInstanceState: Bundle?) { 24 | super.onViewCreated(view, savedInstanceState) 25 | binding?.viewModel = viewModel 26 | binding?.lifecycleOwner = this 27 | } 28 | 29 | 30 | override fun onActivityCreated(savedInstanceState: Bundle?) { 31 | super.onActivityCreated(savedInstanceState) 32 | adapter = ChooseAreaAdapter(context!!, R.layout.simple_item, viewModel.dataList) 33 | listView.adapter = adapter 34 | observe() 35 | } 36 | 37 | private fun observe() { 38 | // 通过观察当前水平的值 决定title的样式 （livedata） 39 | viewModel.currentLevel.observe(this, Observer { level -> 40 | when (level) { 41 | LEVEL_PROVINCE -> { 42 | viewModel.title.value = "中国" 43 | backButton.visibility = View.GONE 44 | } 45 | LEVEL_CITY -> { 46 | viewModel.title.value = viewModel.selectedProvince?.provinceName 47 | backButton.visibility = View.VISIBLE 48 | } 49 | LEVEL_COUNTY -> { 50 | viewModel.title.value = viewModel.selectedCity?.cityName 51 | backButton.visibility = View.VISIBLE 52 | } 53 | } 54 | }) 55 | viewModel.dataChanged.observe(this, Observer { 56 | adapter.notifyDataSetChanged() 57 | listView.setSelection(0) 58 | closeProgressDialog() 59 | }) 60 | viewModel.isLoading.observe(this, Observer { isLoading -> 61 | if (isLoading) showProgressDialog() 62 | else closeProgressDialog() 63 | }) 64 | viewModel.areaSelected.observe(this, Observer { selected -> 65 | if (selected && viewModel.selectedCounty != null) { 66 | if (activity is MainActivity) { 67 | val intent = Intent(activity, WeatherActivity::class.java) 68 | intent.putExtra("weather_id", viewModel.selectedCounty!!.weatherId) 69 | startActivity(intent) 70 | activity?.finish() 71 | } else if (activity is WeatherActivity) { 72 | val weatherActivity = activity as WeatherActivity 73 | weatherActivity.drawerLayout.closeDrawers() 74 | weatherActivity.viewModel.weatherId = viewModel.selectedCounty!!.weatherId 75 | weatherActivity.viewModel.refreshWeather() 76 | } 77 | viewModel.areaSelected.value = false 78 | } 79 | }) 80 | if (viewModel.dataList.isEmpty()) { 81 | viewModel.getProvinces() 82 | } 83 | } 84 | 85 | /** 86 | * 显示进度对话框 87 | */ 88 | private fun showProgressDialog() { 89 | if (progressDialog == null) { 90 | progressDialog = ProgressDialog(activity) 91 | progressDialog?.setMessage("正在加载...") 92 | progressDialog?.setCanceledOnTouchOutside(false) 93 | } 94 | progressDialog?.show() 95 | } 96 | 97 | /** 98 | * 关闭进度对话框 99 | */ 100 | private fun closeProgressDialog() { 101 | progressDialog?.dismiss() 102 | } 103 | 104 | // 伴生对象 105 | companion object { 106 | // 省 市 县 107 | const val LEVEL_PROVINCE = 0 108 | const val LEVEL_CITY = 1 109 | const val LEVEL_COUNTY = 2 110 | } 111 | 112 | } -------------------------------------------------------------------------------- /app/src/main/java/com/aranandroid/mvvm/ui/area/ChooseAreaViewModel.kt: -------------------------------------------------------------------------------- 1 | package com.aranandroid.mvvm.ui.area 2 | 3 | import android.view.View 4 | import android.widget.AdapterView 5 | import android.widget.Toast 6 | import androidx.lifecycle.MutableLiveData 7 | import androidx.lifecycle.viewModelScope 8 | import com.aranandroid.mvvm.BaseApplication 9 | import com.aranandroid.mvvm.data.PlaceRepository 10 | import com.aranandroid.mvvm.data.model.place.City 11 | import com.aranandroid.mvvm.data.model.place.County 12 | import com.aranandroid.mvvm.data.model.place.Province 13 | import com.aranandroid.mvvm.ui.area.ChooseAreaFragment.Companion.LEVEL_CITY 14 | import com.aranandroid.mvvm.ui.area.ChooseAreaFragment.Companion.LEVEL_COUNTY 15 | import com.aranandroid.mvvm.ui.area.ChooseAreaFragment.Companion.LEVEL_PROVINCE 16 | import com.aranandroid.mvvm.base.m.BaseViewModel 17 | import com.aranandroid.mvvm.data.db.ExampleDatabase 18 | import com.aranandroid.mvvm.data.network.ExampleNetwork 19 | import kotlinx.coroutines.launch 20 | import java.util.* 21 | 22 | class ChooseAreaViewModel() : BaseViewModel() { 23 | 24 | private val repository: PlaceRepository = PlaceRepository.getInstance(ExampleDatabase.getPlaceDao(), ExampleNetwork.getInstance()) 25 | 26 | var title = MutableLiveData() 27 | 28 | // 当前水平 29 | var currentLevel = MutableLiveData() 30 | 31 | var dataChanged = MutableLiveData() 32 | 33 | var isLoading = MutableLiveData() 34 | 35 | var areaSelected = MutableLiveData() 36 | 37 | var selectedProvince: Province? = null 38 | 39 | var selectedCity: City? = null 40 | 41 | var selectedCounty: County? = null 42 | 43 | lateinit var provinces: MutableList 44 | 45 | lateinit var cities: MutableList 46 | 47 | lateinit var counties: MutableList 48 | 49 | val dataList = ArrayList() 50 | 51 | fun getProvinces() { 52 | currentLevel.value = LEVEL_PROVINCE 53 | launch { 54 | provinces = repository.getProvinceList() 55 | dataList.addAll(provinces.map { it.provinceName }) 56 | } 57 | } 58 | 59 | private fun getCities() = selectedProvince?.let { 60 | currentLevel.value = LEVEL_CITY 61 | launch { 62 | cities = repository.getCityList(it.provinceCode) 63 | dataList.addAll(cities.map { it.cityName }) 64 | } 65 | } 66 | 67 | private fun getCounties() = selectedCity?.let { 68 | currentLevel.value = LEVEL_COUNTY 69 | launch { 70 | counties = repository.getCountyList(it.provinceId, it.cityCode) 71 | dataList.addAll(counties.map { it.countyName }) 72 | } 73 | } 74 | 75 | fun onListViewItemClick(parent: AdapterView<*>, view: View, position: Int, id: Long) { 76 | when { 77 | currentLevel.value == LEVEL_PROVINCE -> { 78 | selectedProvince = provinces[position] 79 | getCities() 80 | } 81 | currentLevel.value == LEVEL_CITY -> { 82 | selectedCity = cities[position] 83 | getCounties() 84 | } 85 | currentLevel.value == LEVEL_COUNTY -> { 86 | selectedCounty = counties[position] 87 | areaSelected.value = true 88 | } 89 | } 90 | } 91 | 92 | fun onBack() { 93 | if (currentLevel.value == LEVEL_COUNTY) { 94 | getCities() 95 | } else if (currentLevel.value == LEVEL_CITY) { 96 | getProvinces() 97 | } 98 | } 99 | 100 | private fun launch(block: suspend () -> Unit) = viewModelScope.launch { 101 | try { 102 | isLoading.value = true 103 | dataList.clear() 104 | block() 105 | dataChanged.value = dataChanged.value?.plus(1) 106 | isLoading.value = false 107 | } catch (t: Throwable) { 108 | t.printStackTrace() 109 | Toast.makeText(BaseApplication.context, t.message, Toast.LENGTH_SHORT).show() 110 | dataChanged.value = dataChanged.value?.plus(1) 111 | isLoading.value = false 112 | } 113 | } 114 | 115 | } -------------------------------------------------------------------------------- /app/src/main/java/com/aranandroid/mvvm/ui/weather/WeatherActivity.kt: -------------------------------------------------------------------------------- 1 | package com.aranandroid.mvvm.ui.weather 2 | 3 | import android.graphics.Color 4 | import android.os.Build 5 | import android.os.Bundle 6 | import android.view.View 7 | import androidx.core.view.GravityCompat 8 | import com.aranandroid.mvvm.R 9 | import com.aranandroid.mvvm.databinding.ActivityWeatherBinding 10 | import com.aranandroid.mvvm.base.vm.BaseActivity 11 | import kotlinx.android.synthetic.main.activity_weather.* 12 | import kotlinx.android.synthetic.main.title.* 13 | 14 | class WeatherActivity : BaseActivity(R.layout.activity_weather) { 15 | override fun onCreate(savedInstanceState: Bundle?) { 16 | super.onCreate(savedInstanceState) 17 | if (Build.VERSION.SDK_INT >= 21) { 18 | val decorView = window.decorView 19 | decorView.systemUiVisibility = View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN or View.SYSTEM_UI_FLAG_LAYOUT_STABLE 20 | window.statusBarColor = Color.TRANSPARENT 21 | } 22 | binding.viewModel = viewModel 23 | binding.resId = R.color.colorPrimary 24 | binding.lifecycleOwner = this 25 | viewModel.weatherId = if (viewModel.isWeatherCached()) { 26 | viewModel.getCachedWeather().basic.weatherId 27 | } else { 28 | intent.getStringExtra("weather_id") 29 | } 30 | navButton.setOnClickListener { 31 | drawerLayout.openDrawer(GravityCompat.START) 32 | } 33 | viewModel.getWeather() 34 | } 35 | 36 | } -------------------------------------------------------------------------------- /app/src/main/java/com/aranandroid/mvvm/ui/weather/WeatherViewModel.kt: -------------------------------------------------------------------------------- 1 | package com.aranandroid.mvvm.ui.weather 2 | 3 | import android.widget.Toast 4 | import androidx.lifecycle.MutableLiveData 5 | import androidx.lifecycle.viewModelScope 6 | import com.aranandroid.mvvm.BaseApplication 7 | import com.aranandroid.mvvm.data.WeatherRepository 8 | import com.aranandroid.mvvm.data.model.weather.Weather 9 | import com.aranandroid.mvvm.base.m.BaseViewModel 10 | import com.aranandroid.mvvm.data.db.ExampleDatabase 11 | import com.aranandroid.mvvm.data.network.ExampleNetwork 12 | import kotlinx.coroutines.launch 13 | 14 | class WeatherViewModel() : BaseViewModel() { 15 | private val repository: WeatherRepository = WeatherRepository.getInstance(ExampleDatabase.getWeatherDao(), ExampleNetwork.getInstance()) 16 | var weather = MutableLiveData() 17 | 18 | var bingPicUrl = MutableLiveData() 19 | 20 | var refreshing = MutableLiveData() 21 | 22 | var weatherInitialized = MutableLiveData() 23 | 24 | var weatherId = "" 25 | 26 | fun getWeather() { 27 | 28 | launch ({ 29 | weather.value = repository.getWeather(weatherId) 30 | weatherInitialized.value = true 31 | }, { 32 | Toast.makeText(BaseApplication.context, it.message, Toast.LENGTH_SHORT).show() 33 | }) 34 | getBingPic(false) 35 | } 36 | 37 | fun refreshWeather() { 38 | refreshing.value = true 39 | launch ({ 40 | weather.value = repository.refreshWeather(weatherId) 41 | refreshing.value = false 42 | weatherInitialized.value = true 43 | }, { 44 | Toast.makeText(BaseApplication.context, it.message, Toast.LENGTH_SHORT).show() 45 | refreshing.value = false 46 | }) 47 | getBingPic(true) 48 | } 49 | 50 | fun isWeatherCached() = repository.isWeatherCached() 51 | 52 | fun getCachedWeather() = repository.getCachedWeather() 53 | 54 | fun onRefresh() { 55 | refreshWeather() 56 | } 57 | 58 | private fun getBingPic(refresh: Boolean) { 59 | // viewModelScope.launch 开启协程方法 60 | launch({ 61 | bingPicUrl.value = if (refresh) repository.refreshBingPic() else repository.getBingPic() 62 | }, { 63 | Toast.makeText(BaseApplication.context, it.message, Toast.LENGTH_SHORT).show() 64 | }) 65 | } 66 | 67 | /** 68 | * 自定义一个launch方法 69 | * 高阶函数：（参数或者返回值有方法的函数） 70 | */ 71 | private fun launch(block: suspend () -> Unit, error: suspend (Throwable) -> Unit) = viewModelScope.launch { 72 | try { 73 | block() 74 | } catch (e: Throwable) { 75 | error(e) 76 | } 77 | } 78 | 79 | } -------------------------------------------------------------------------------- /app/src/main/java/com/aranandroid/mvvm/util/BindingAdapters.kt: -------------------------------------------------------------------------------- 1 | package com.aranandroid.mvvm.util 2 | 3 | import android.view.LayoutInflater 4 | import android.widget.ImageView 5 | import android.widget.LinearLayout 6 | import androidx.databinding.BindingAdapter 7 | import androidx.databinding.DataBindingUtil 8 | import androidx.swiperefreshlayout.widget.SwipeRefreshLayout 9 | import com.bumptech.glide.Glide 10 | import com.aranandroid.mvvm.R 11 | import com.aranandroid.mvvm.data.model.weather.Weather 12 | import com.aranandroid.mvvm.databinding.ForecastItemBinding 13 | 14 | @BindingAdapter("bind:loadBingPic") 15 | fun ImageView.loadBingPic(url: String?) { 16 | if (url != null) Glide.with(context).load(url).into(this) 17 | } 18 | 19 | @BindingAdapter("bind:colorSchemeResources") 20 | fun SwipeRefreshLayout.colorSchemeResources(resId: Int) { 21 | setColorSchemeResources(resId) 22 | } 23 | 24 | @BindingAdapter("bind:showForecast") 25 | fun LinearLayout.showForecast(weather: Weather?) = weather?.let { 26 | removeAllViews() 27 | for (forecast in it.forecastList) { 28 | val view = LayoutInflater.from(context).inflate(R.layout.forecast_item, this, false) 29 | DataBindingUtil.bind(view)?.forecast = forecast 30 | addView(view) 31 | } 32 | } -------------------------------------------------------------------------------- /app/src/main/res/drawable-v24/ic_launcher_foreground.xml: -------------------------------------------------------------------------------- 1 | 7 | 12 | 13 | 19 | 22 | 25 | 26 | 27 | 28 | 34 | 35 | -------------------------------------------------------------------------------- /app/src/main/res/drawable-xxhdpi/ic_back.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/AranAndroid009/Mvvm/94e887210b10d23982f5907cd96b3470f8425c9c/app/src/main/res/drawable-xxhdpi/ic_back.png -------------------------------------------------------------------------------- /app/src/main/res/drawable-xxhdpi/ic_home.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/AranAndroid009/Mvvm/94e887210b10d23982f5907cd96b3470f8425c9c/app/src/main/res/drawable-xxhdpi/ic_home.png -------------------------------------------------------------------------------- /app/src/main/res/drawable/ic_launcher_background.xml: -------------------------------------------------------------------------------- 1 | 2 | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 22 | 24 | 26 | 28 | 30 | 32 | 34 | 36 | 38 | 40 | 42 | 44 | 46 | 48 | 50 | 52 | 54 | 56 | 58 | 60 | 62 | 64 | 66 | 68 | 70 | 72 | 74 | 75 | -------------------------------------------------------------------------------- /app/src/main/res/layout/activity_main.xml: -------------------------------------------------------------------------------- 1 | 3 | 4 | 5 | 6 | 7 | 11 | 12 | 13 | -------------------------------------------------------------------------------- /app/src/main/res/layout/activity_weather.xml: -------------------------------------------------------------------------------- 1 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 13 | 14 | 21 | 22 | 26 | 27 | 35 | 36 | 43 | 44 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 | 60 | 61 | 67 | 68 | 69 | 70 | 71 | -------------------------------------------------------------------------------- /app/src/main/res/layout/aqi.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 11 | 12 | 20 | 21 | 25 | 26 | 30 | 31 | 36 | 37 | 46 | 47 | 53 | 54 | 55 | 56 | 57 | 58 | 62 | 67 | 76 | 83 | 84 | 85 | 86 | 87 | 88 | 89 | -------------------------------------------------------------------------------- /app/src/main/res/layout/choose_area.xml: -------------------------------------------------------------------------------- 1 | 3 | 4 | 5 | 6 | 11 | 15 | 16 | 24 | 25 |