RxCache使用LruCache和DiskLruCache对网络请求数据进行二级缓存,主要适配于接口API返回数据,不用于图片等的缓存。可以设置缓存模式、缓存大小,设置数据过期时间,并提供了根据key删除缓存和清空所有缓存的功能。提供了Gson方式和Serialize方式进行数据存储转换与还原。
RxJava事件优化,必然触发onComplete方法 修复cacheTime传递-1(表示不会过期)时,数据无法取出的问题
RxCache使用JitPack进行依赖管理,所以需要先在项目的build.gradle中添加以下代码:
allprojects{
repositories{
...
maven{url 'https://jitpack.io'}
}
}
然后在Module的gradle中添加以下依赖:
compile 'com.github.LtLei:RxCache:1.0.5'
RxCache.init(this);//为RxCache提供Context
new RxCache.Builder()
.setDebug(true) //开启debug,开启后会打印缓存相关日志,默认为true
.setConverter(new GsonConverter()) //设置转换方式,默认为Gson转换
.setCacheMode(CacheMode.BOTH) //设置缓存模式,默认为二级缓存
.setMemoryCacheSizeByMB(50) //设置内存缓存的大小,单位是MB
.setDiskCacheSizeByMB(100) //设置磁盘缓存的大小,单位是MB
.setDiskDirName("RxCache") //设置磁盘缓存的文件夹名称
.build();
RxCache.getInstance()
.put("test", "This is data to cache.", 10 * 1000) //key:缓存的key data:具体的数据 time:缓存的有效时间
.compose(RxUtil.<Boolean>io_main()) //线程调度
.subscribe(new Consumer<Boolean>() {
@Override
public void accept(Boolean aBoolean) throws Exception {
if (aBoolean) Log.d("Cache", "cache successful!");
}
},new Consumer<Throwable>() {
@Override
public void accept(Throwable throwable) throws Exception {
throwable.printStackTrace();
}
});
读取缓存时,分为以下几种情况:
RxCache.getInstance()
.get("test",false,String.class) //key:缓存的key update:表示从缓存获取数据强行返回NULL
.compose(RxUtil.<CacheResponse<String>>io_main())
.subscribe(new Consumer<CacheResponse<String>>() {
@Override
public void accept(CacheResponse<String> stringCacheResponse) throws Exception {
if(stringCacheResponse.getData()!=null)
Log.d("data from cache : "+stringCacheResponse.getData());
}
},new Consumer<Throwable>() {
@Override
public void accept(Throwable throwable) throws Exception {
throwable.printStackTrace();
}
});
Type type = new TypeToken<List<String>>(){}.getType();
RxCache.getInstance()
.<List<String>>get("test",false,type) //由于Type不是类,需要指定泛型
.compose(RxUtil.<CacheResponse<List<String>>>io_main())
.subscribe(new Consumer<CacheResponse<List<String>>>() {
@Override
public void accept(CacheResponse<List<String>> listCacheResponse) throws Exception {
if(listCacheResponse.getData()!=null)
Log.d("data from cache : "+listCacheResponse.getData().toString());
}
},new Consumer<Throwable>() {
@Override
public void accept(Throwable throwable) throws Exception {
throwable.printStackTrace();
}
});
RxCache.getInstance()
.<List<String>>get("test",false) //指定泛型,不再需要传.class或Type
.compose(RxUtil.<CacheResponse<List<String>>>io_main())
.subscribe(new Consumer<CacheResponse<List<String>>>() {
@Override
public void accept(CacheResponse<List<String>> listCacheResponse) throws Exception {
if(listCacheResponse.getData()!=null)
Log.d("data from cache : "+listCacheResponse.getData().toString());
}
},new Consumer<Throwable>() {
@Override
public void accept(Throwable throwable) throws Exception {
throwable.printStackTrace();
}
});
RxCache.getInstance()
.remove("testList")
.compose(RxUtil.<Boolean>io_main())
.subscribe(new Consumer<Boolean>() {
@Override
public void accept(Boolean aBoolean) throws Exception {
if (aBoolean) Log.d("cache data has been deleted.");
}
}, new Consumer<Throwable>() {
@Override
public void accept(Throwable throwable) throws Exception {
throwable.printStackTrace();
}
});
RxCache.getInstance()
.clear()
.compose(RxUtil.<Boolean>io_main())
.subscribe(new Consumer<Boolean>() {
@Override
public void accept(Boolean aBoolean) throws Exception {
if (aBoolean) Log.d("All datas has been deleted.");
}
}, new Consumer<Throwable>() {
@Override
public void accept(Throwable throwable) throws Exception {
throwable.printStackTrace();
}
});