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【MultiType】可以轻松地实现RecyclerView显示多种数据类型,数据对应布局一对多、多对多、多对一,可以注册全局类型、局部类型、默认类型
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sunfusheng/MultiType
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为实现RecyclerView显示多种类型数据,包括各种Headers、Footers,参考drakeet的扛鼎之作MultiType后,着重优化了一对多的显示,即一种数据类型对应多种布局的情况,例如新闻数据类型(News.class)就可能显示文本、左图、右图、大图、多图等多种item布局,面对这种情况就要根据数据中的类型字段(你指定属性的get()方法)去区分,这里通过Java8的特性传递方法的引用,再通过KeyGenerator执行这个方法获取数据对应的值来解决这个问题的。
该库不仅可以显示同一种数据类型对应不同的layout,还可以显示不同数据类型对应不同的layout,如果你没有通过MultiTypeRegistry全局注册或通过MultiTypeAdapter局部注册过你的数据类型,这个库不会让应用崩掉,会返回默认的提示layout,当然你也可以注册自己的默认数据类型,具体使用参考下面。
MultiState 这个库为了管理请求数据的加载中、加载成功、加载失败、数据为空的情况,与MultiType配合使用更合适。
RecyclerViewWrapper 这个库结合【MultiType】和【MultiState】并使用了SmartRefreshLayout这个库来统一管理各个加载状态并简单封装了下拉刷新、上拉加载更多等相关功能,欢迎下载apk体验。
// MultiTypeapi 'com.sunfusheng:MultiType:<latest-version>'// MultiStateapi 'com.sunfusheng:MultiState:<latest-version>'// RecyclerViewWrappercompile 'com.sunfusheng:RecyclerViewWrapper:<latest-version>'// 如果不想用库里版本的RecyclerView,可这样配置api 'com.sunfusheng:RecyclerViewWrapper:<latest-version>', { exclude group: 'com.android.support'}// 如果同步不下来库的话,在工程下的 build.gradle 添加:allprojects { repositories { maven { url 'https://dl.bintray.com/sfsheng0322/maven' } }}
MultiTypeRegistry.getInstance().register(News.class,News::getType,News.TYPE_TEXT,newTextBinder());MultiTypeRegistry.getInstance().register(News.class,News::getType,News.TYPE_BIG_IMAGE,newBigImageBinder());MultiTypeRegistry.getInstance().register(News.class,News::getType,News.TYPE_RIGHT_IMAGE,newRightImageBinder());MultiTypeRegistry.getInstance().register(News.class,News::getType,News.TYPE_THREE_IMAGES,newThreeImagesBinder());MultiTypeRegistry.getInstance().register(Music.class,newMusicBinder());MultiTypeRegistry.getInstance().register(Video.class,newVideoBinder());
MultiTypeRegistry.getInstance().registerDefaultBinder(newNonsupportBinder());
MultiTypeAdaptermultiTypeAdapter =newMultiTypeAdapter();multiTypeAdapter.register(News.class,News::getType,News.TYPE_TEXT,newTextBinder());multiTypeAdapter.register(News.class,News::getType,News.TYPE_BIG_IMAGE,newBigImageBinder());multiTypeAdapter.register(News.class,News::getType,News.TYPE_RIGHT_IMAGE,newRightImageBinder());multiTypeAdapter.register(News.class,News::getType,News.TYPE_THREE_IMAGES,newThreeImagesBinder());multiTypeAdapter.register(Music.class,newMusicBinder());multiTypeAdapter.register(Video.class,newVideoBinder());
RecyclerViewrecyclerView =findViewById(R.id.recyclerView);recyclerView.setLayoutManager(newLinearLayoutManager(this));recyclerView.setAdapter(multiTypeAdapter);multiTypeAdapter.setItems(@NonNullList<?>items);multiTypeAdapter.notifyDataSetChanged();
属性 | 作用 |
---|---|
loadingLayout | 加载中布局 |
normalLayout | 正常显示数据的布局 |
errorLayout | 加载失败布局 |
emptyLayout | 数据为空布局 |
loadingState | 初始的加载状态 |
<com.sunfusheng.multistate.MultiStateViewandroid:id="@+id/multiStateView"xmlns:android="http://schemas.android.com/apk/res/android"xmlns:app="http://schemas.android.com/apk/res-auto"android:layout_width="match_parent"android:layout_height="match_parent"app:loadingLayout="@layout/layout_loading"app:normalLayout="@layout/layout_recyclerview"app:errorLayout="@layout/layout_error"app:emptyLayout="@layout/layout_empty"app:loadingState="loading"/>
multiStateView.setLoadingState(@LoadingState int loadingState);