Android image caching
2016-08-23
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If you load the same picture to be obtained from the network, it is too high a price. So the same picture as long as obtained from the network once is enough, and then in the local cache, load after load from the cache at the same picture is OK. Images are imported from the memory cache is the fastest, but because of the limited memory capacity, so it is best combined with file caching. File cache space is not infinite, larger read more inefficient, so it can be set to a fixed size such as 10M, or save time limit such as one day. Therefore, the pictures are loading process should be: 1, retrieved from the memory cache first, get return, fail to get to the next step; 2, from file cache, fetch and update the cache memory is returned, fail to get to the next step; 3, downloaded from the Internet pictures, and update the cache memory and file cache.
java
android
缓存
图片
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