Definition and usage example analysis of image loader in Android programming

This article describes the definition and usage of the Android programming image loading class imageloader. Share with you for your reference, as follows:

Resolution:

1) The single instance mode is used for image loading to avoid life and death lock when calling multiple times. 2) the core object lrucache

When loading pictures, first judge whether there are pictures in the cache. If so, use the pictures in the cache

No, load the network and put it into the cache

3) Thread pool executorservice mthreadpool technology is used. 4) semaphore signal is used to control variables to execute in order to avoid the problem of null pointer

How to use:

When loading pictures in the adapter

Source code:

Related tools:

More readers interested in Android related content can view the special topics of this site: summary of Android graphics and image processing skills, introduction and advanced tutorial of Android development, summary of Android debugging skills and common problem solving methods, summary of Android basic component usage, summary of Android view skills, summary of Android layout skills, and Android control usage summary

I hope this article will help you in Android programming.