copy files into this directory2. How do I empty the cache? You can use the similar method above to reflect the operation, but this operation requires system-level applications to clean up, how does the software on the market clean up? Skip to the App info page to clean it up manually, but the software on the market can clean up all the cache
Android uses a file system similar to disk-based file systems on other platforms. This article describes how to use the Android file system to read and write files through the file API.The File object is suitable for reading or writing large amounts of data in the order from start to finish without skipping. For example, it is suitable for picture
Transfer the Android Market cache to the SD card sizeProgram!
A previous tutorialHow to clear System junk in Android G1
Now I have a better way to save memory, that is, to transfer the cache in the market to the SD card, so that you can "have no scrubs" on the market.Because the
Brief introductionIn Android apps, images consume a lot of resources, but they provide a good visual experience for applications. Fortunately, Picasso provides a very easy way for your app to load images-usually one line of code can be done!Picasso.with (context). Load ("Http://i.imgur.com/DvpvklR.png"). into (ImageView);Picasso handles many of the pits loaded by Android tablets:1) in adapter, the recycling
Android performance optimization: asynchronous image loading tool with dual cache (LruCache + SoftReference ),
Previously, I used the LruCache algorithm to implement image caching in Guo Dashen's blog. here, I followed his ideas and wrote one myself. concurrentHashMap
The following idea is that the LruCache class provided by the system is used as a level-1 cache
Well, go straight to the theme, cache.Where references are needed:Acache cache =NULL; Private voidgetacachelibrary () {Cache= Acache.Get(Mainactivity. This); Bitmap Bitmap= Cache.getasbitmap ("Image"); if(NULL!=bitmap) {System. out. println ("no bitmap"); } Else{System. out. println ("Have bitmap"); } }And then every time I resume:Cache.put ("image", R.drawable.ic_launcher);These are just examples. Refer
We usually develop when the file cache, commonly used in the mobile phone internal storage and external storage of mobile phones, mobile phone internal storage mainly includes the app after the installation of some files, external storage is commonly used by the space, used to save some pictures of movies and so on.
When fast-read cache
[Android development experience] What Should cached files of an APP exist? After reading this article, you should be clear about it. androidapp
Reprinted please indicate the source: http://blog.csdn.net/zhaokaiqiang1992
As long as it is an APP that requires online data retrieval, cache files will be generated locally,
Preface: The previous article wrote the use of Sharedpreferences in Android to save data, sharedpreferences when saving data is mainly to save some application settings information or a small amount of user information, And it is the information of the string class saved in the form of Key-value, which is more limited.For example, you need to save images from the network to local as cached data, and the number is larger. Sharedpreferences will not be
Preface: The previous article wrote the use of Sharedpreferences in Android to save data, sharedpreferences when saving data is mainly to save some application settings information or a small amount of user information, And it is the information of the string class saved in the form of Key-value, which is more limited. For example, you need to save the image from the network to local as the cache data, and
Android is very easy to upload files. It is the same as uploading in java. It is basically familiar with the operation output stream and input stream! Another important thing is to configure the content-type parameters! If all these are done, the upload will be simple! The following is an upload tool class I wrote:
Package com. spring. sky. image. upload. network;Import java. io. DataOutputStream;Import ja
consumes.
ProcessesGet the log: Execute PS-PDisplay current process
Processes and threadsObtain the log: Execute PS-T-p.Display current process and thread
LibrankObtain the log: Run/system/xbin/librank.Remove unnecessary Libraries
Binder failed transaction logGet this log: Read the file/proc/binder/failed_transaction_log
Binder transaction logGet the log: Read the file/proc/binder/transaction_log
Binder transactionsGet the log: Read the file/proc/binder/transactions
Binder statsGet the log: Rea
/sdcard0/folder14. Directory under the Application Data directoryIn general, under $appdatadir, there will be two directories:1. data cache: $cacheDir = $appDataDir/cache :
Internal storage: Context.getCacheDir() When the body is out of memory, the file is deleted
External storage:Context.getExternalCacheDir()External storage without real-time monitoring, when the space is low, the
Haha, I am also drunk on this demand.
Today there is a friend who makes iOS (former company colleague, now is leader) asked me their company Android to do version upgrade, and then signed the file has but password and alias forgot, always can not re-get a signature file, password tried a lot of useless, I listen to special feel want to laugh, But it's also embarrassing to have such a problem.Look under:In order to ensure that the future of this s
Android File Private Storage
First, the internal storage path is/data/data/youpackagename/, and the paths explained below are based on your own application's internal storage path. Files saved in all internal stores are deleted when the user unloads the application.First, Files1. Context.getfilesdir (), the method returns the/data/data/youpackagename/files fi
There are two types of file storage areas for Android devices:internal storage and external storage ("internal" and "external" storage).The name comes from early Android, when most Android devices offer two types of storage: built-in nonvolatile memory (internal storage) and removable Storage such as micro SD cards (external storage).Some devices divide permanent
We usually need to store large files such as audio and video on our mobile phones. We have learned how to store files (using File Operations) before. Considering the small storage space of mobile phones, at this time, we need to store the files in SDcard. Today we have learned how to store sdcard in android;
First, if
This example describes how Android uses sharedpreferences to store XML files. Share to everyone for your reference, specific as follows:
Sharedpreferences is a lightweight storage class on the Android platform, primarily to save some of the most commonly used configurations, such as window state, typically Overloaded window state onsaveinstancestate save is typi
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