Android Development uses the Acache class to cache data for level two (memory + files)

Acache class Download Address: Http://pan.baidu.com/s/1gfI0A9X

1. Create Acache instance

Acache Acache;

Acache = Acache.get (This, "main");

2, Save the data (memory and file)

Acache.put (Key,value,time);

The top two need not repeat, key-value pairs, last time, incoming int type, in seconds, representing the time that the cache exists, beyond which the cached data is purged.

3, get the cached data

Use an example to describe the problem:

The code is as follows

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public class Mainactivity extends activity { Private ImageView img; Acache Acache; @Override protected void OnCreate (Bundle savedinstancestate) { Super.oncreate (savedinstancestate); Setcontentview (R.layout.activity_main); Acache = Acache.get (This, "main"); img = (imageview) Findviewbyid (r.id.img); if (Acache.getasbitmap ("pic")!= null) { LOG.E ("Acache", "caching is in use!"); Img.setimagebitmap (Acache.getasbitmap ("pic")); } else { Picasso.with (this). Load (' http://www.b.hsgjxt.com/image/cache/data/0-100x100.jpg '). into (new Target () { @Override public void onbitmaploaded (Bitmap Bitmap, picasso.loadedfrom from) { LOG.E ("Picasso", "Using picasso!"); Img.setimagebitmap (bitmap); Acache.put ("Pic", bitmap, 10); } @Override public void onbitmapfailed (drawable errordrawable) { } @Override public void Onprepareload (drawable placeholderdrawable) { } }); } } }

When I first entered, the console printed the following:

When I immediately quit and went in, print as follows:

When I was delayed for about 10 seconds to go in again, and prompted as follows:

To prove that the cache is available, and that the cached time is also effective.