【版权说明】
1. 请支持原创,转载请注明出处:https://blog.csdn.net/cbk861110/article/details/86665564
2. 项目源码&框架说明&技术更新实现 请移步:https://github.com/caobaokang419/WeatherApp(欢迎Github Fork&Star,框架和技术实现不妥之处,请帮忙指正),谢谢!
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基于MVVM框架的高德天气APP:
功能点实现说明:
- RecyclerView封装:Android推荐控件,优于ListView,处理不同类型的ItemView封装使用;
一、技术背景:
RecyclerView可以实现包含不同ui&data的Item,但Android原生机制RecyclerView.Adapter此场景使用复杂,不便于扩展。
二、技术实现(工厂方式实现生成不同ui&data的Item object):
1. CityWeatherRecyclerAdapter.java实现:
public class CityWeatherRecyclerAdapter extends RecyclerView.Adapter<BaseItemViewHolder> {
private List<BaseItemBean> mItemDatas = new ArrayList<>();
public CityWeatherRecyclerAdapter() {
}
public void setAdapterData(List<BaseItemBean> datas) {
mItemDatas.clear();
mItemDatas = datas;
notifyDataSetChanged();
}
@Override
public BaseItemViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
return ItemViewHolderFactory.getViewHolderByType(parent, viewType);
}
@Override
public void onBindViewHolder(BaseItemViewHolder holder, int position) {
holder.getIViewItem().bindView(mItemDatas.get(position));
}
@Override
public int getItemViewType(int position) {
return (mItemDatas.get(position) == null) ? 0 : mItemDatas.get(position).getViewItemType();
}
@Override
public int getItemCount() {
return mItemDatas.size();
}
}
2. 静态工厂生成不同不同ui&data的Item:
public class ItemViewHolderFactory {
public static BaseItemViewHolder getViewHolderByType(ViewGroup parent, int type) {
if (type == ItemViewType.RV_CURRENT_WEATHER) {
return new BaseItemViewHolder(CurWeatherViewItem.getViewItem(),parent);
} else if (type == ItemViewType.RV_FORECAST_DAY_WEATHER) {
return new BaseItemViewHolder(ForcastDayViewItem.getViewItem(),parent);
}
return null;
}
}
public class BaseItemViewHolder extends RecyclerView.ViewHolder {
private IViewItem mIViewItem;
public BaseItemViewHolder(IViewItem viewItem , ViewGroup parent) {
super(viewItem.createView(parent));
mIViewItem = viewItem;
}
public IViewItem getIViewItem(){
return mIViewItem;
}
}
public abstract class BaseItemBean {
private final int mViewItemType;
public BaseItemBean(int viewItemType) {
this.mViewItemType = viewItemType;
}
public int getViewItemType() {
return mViewItemType;
}
}
public class ItemViewType { //待优化为enum type
public final static int RV_CURRENT_WEATHER =1;
public final static int RV_FORECAST_DAY_WEATHER =2;
}
3 . 不同RecyclerAdapter Item 实现举例:
public class CurWeatherViewItem implements IViewItem<LiveWeatherBean> {
private CurWeatherBinding mDataBinding;
public static CurWeatherViewItem getViewItem() {
return new CurWeatherViewItem();
}
public View createView(ViewGroup parent) {
View itemView = LayoutInflater.from(parent.getContext())
.inflate(R.layout.item_cur_weather, parent, false);
mDataBinding = CurWeatherBinding.bind(itemView);
return itemView;
}
public void bindView(@NonNull LiveWeatherBean data) {
mDataBinding.setViewModel(new CurWeatherViewModel(data));
}
}
public class ForcastDayViewItem implements IViewItem<DayForecastBean> {
private WeatherForecastDayBinding mDataBinding;
public static ForcastDayViewItem getViewItem() {
return new ForcastDayViewItem();
}
public View createView(ViewGroup parent) {
View itemView = LayoutInflater.from(parent.getContext())
.inflate(R.layout.item_forecast_day, parent, false);
mDataBinding = WeatherForecastDayBinding.bind(itemView);
return itemView;
}
public void bindView(@NonNull DayForecastBean data) {
mDataBinding.setViewModel(new ForecastDayViewModel(data));
}
}
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文章目录(未完,待续):
一:android 应用子功能及移动框架总述 https://blog.csdn.net/cbk861110/article/details/86665564
二:android 高德天气API说明及城市天气查询实现 https://blog.csdn.net/cbk861110/article/details/86665655
三:android 自定义控件实现(ActionBar + PageIndicatorView) https://blog.csdn.net/cbk861110/article/details/86665790
四:android ViewPager实现左右页面滑动切换 https://blog.csdn.net/cbk861110/article/details/86665964
五:android应用权限动态申请 https://blog.csdn.net/cbk861110/article/details/86666321
六:android RecyclerView 封装及使用 https://blog.csdn.net/cbk861110/article/details/86666392
七:android Xutils3文件下载实现(高德天气城市配置) https://blog.csdn.net/cbk861110/article/details/86666573
八:android DiskLruCache 磁盘缓存 封装和使用 https://blog.csdn.net/cbk861110/article/details/86666664
九:android ThreadPoolExecutor线程池 封装及使用 https://blog.csdn.net/cbk861110/article/details/86667101
十:android 天气网络请求框架(retrofit2&okhttp3&Gson) 封装及使用 https://blog.csdn.net/cbk861110/article/details/86667375
十一:android RxAndroid(响应式编程) 异步网络请求实现 https://blog.csdn.net/cbk861110/article/details/86669178
十二:android DataBinding 数据和UI双向绑定实现 https://blog.csdn.net/cbk861110/article/details/86669708
十三:android room数据库 天气数据读写实现 https://blog.csdn.net/cbk861110/article/details/86670354
十四:android LiveData 使用方法(实现城市天气自动刷新) https://blog.csdn.net/cbk861110/article/details/86670531
十五:android ViewModel 使用方法 https://blog.csdn.net/cbk861110/article/details/86670703
十六:android 集成友盟消息推送机制(U-Push) https://blog.csdn.net/cbk861110/article/details/86683849
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【版权说明】
1. 请支持原创,转载请注明出处:https://blog.csdn.net/cbk861110/article/details/86665564
2. 项目源码&框架说明&技术更新实现 请移步:https://github.com/caobaokang419/WeatherApp(欢迎Github Fork&Star,框架和技术实现不妥之处,请帮忙指正),谢谢!