mMemoryCache.get(key); AsyncTask 进行耗时操作比方载入图片要求不要堵塞UI线程。就必须使用异步任务。AsyncTask是不须要借助thread+handler就可以实现异步任务的组件,使用起来比較简单且更轻量级一些。实现AsyncTask过程例如以下: (1) 扩展子AsyncTask,如 class BitmapWorkerTask extends AsyncTask<String, Void, Bitmap...
Simple LRU cache for asyncio. Contribute to aio-libs/async-lru development by creating an account on GitHub.
此外在项目中用到了通过URL加载网络图片,因为加载图片需要联网,如果每次都加载的话不仅耗费大量流量,而且用户体验极差,所以我们必须知道Android中的基本缓存策略。比如常见的LruCache与DiskLruCache。 所以本文总体来说就是通过一个小小的项目来学习三方面的知识: AsyncTask如何在项目中运用自如; 如何高效优化ListView LruC...
importandroid.content.Context;importandroid.graphics.Bitmap;importandroid.view.View;importandroid.view.ViewGroup;importandroid.widget.AbsListView;importandroid.widget.AbsListView.OnScrollListener;importandroid.widget.BaseAdapter;importandroid.widget.GridView;importandroid.widget.ImageView;importcom.example.asyncimage...
1. package com.example.asyncimageloader; 2. 3. import java.io.File; 4. import java.io.FileOutputStream; 5. import java.io.IOException; 6. 7. import android.content.Context; 8. import android.graphics.Bitmap; 9. import android.graphics.Bitmap.CompressFormat; ...
acquireAsync(key)异步的acquire方法。 insertOrAssign先取消对应的Lookup,然后调用InvalidatingLRUCache的insertOrAssign。 advanceTimeInStoreIndicates to the cache that the backing store has a newer version of 'key' invalidate(key)将对应value置为invalid,即使这个value已经返回给caller,并将此key从cache中删除;...
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async function renderAndCache (req, res, pagePath, queryParams) { const key = getCacheKey(req); // If we have a page in the cache, let's serve it if (ssrCache.has(key)) { res.setHeader('x-cache', 'HIT'); res.send(ssrCache.get(key)); ...
Async mode: // You need to set "upsert" callback logic when creating the cacheconstcache=newLRU_TTL({upsert:asyncfunction(key){/* Return Logic */}});// Or set it using ::upsertCbcache.upsertCb=asyncfunction(key){/* Logic */};/** Using ::upsert */constitem=awaitcache.upsert(mixe...
async cache lru-cache kael •1.0.3•7 years ago•2dependents•MITpublished version1.0.3,7 years ago2dependentslicensed under $MIT 24,133 @type-cacheable/lru-cache-adapter Adapter for using lru-cache with type-cacheable cache