thumbnail is a cache file. thumbnail is a file formed by the cache thumbnail of the camera that comes with the mobile phone; the main reason for forming this file is that the thumbdata file under the thumbnail folder will automatically cache the thumbnail of the mobile phone photo. The user can understand it as cache, that is, after the user has viewed the photo , a cache thumbnail will be generated in this folder.
Demo environment for this article: EMUI9.1.0.226 system, Huawei P30.
thumbnail is a cache file
thumbnail file introduction
thumbnail is the camera and Picture cache files generally occupy a large amount of memory, ranging from dozens of megabytes in size to about 1.5G to 7.5G in larger sizes.
The thumbnail file is formed by the cache thumbnail of the camera that comes with the mobile phone. The main reason for forming this file is that the thumbdata file under the thumbnail folder will automatically cache the thumbnail of the mobile phone photo. Users can understand it as caching. That is, after the user views the photo, a cached thumbnail will be generated in the folder to facilitate the user to view it next time.
The main reason for forming this file is that the thumbdata3--1967290299 file under the thumbnail folder automatically caches the thumbnails of mobile phone photos. Users can understand it as caching, that is, after the user views the photo, a cache thumbnail will be generated in thumbdata3--1967290299 under the folder to facilitate the user to view it next time.
It can be said that this is a design flaw in Android 4.0 and above systems. It is a troublesome bug. Once it is touched and activated, it will be irreversible.
Can the thumbnail file be deleted?
Even if the thumbnail folder is deleted, it will not affect the use of the phone, but the user will load the picture next time. Thumbnails will be generated again, so simple deletion cannot solve the thumbnail file problem. Downloading a third-party camera software for shooting and viewing pictures can solve the problem of automatically generating cache.
Introduction to cache folders
The cache is a temporary file exchange area. The computer extracts the most commonly used files from the memory and temporarily places them in the cache, just like putting tools Just like moving materials to the workbench, this will be more convenient than going to the warehouse to pick them up when they are needed. Do not understand cache as one thing, it is a general term for a processing method.
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