android storage emulated

Android newest mobile phone internal storage size, SD card storage size Method We used to obtain this information in the past. // Before Android API18: fs. getAvailableBlocks () * fs. getBlockSize () Currently: /** Obtain available system memory **/@ SuppressLint ("NewApi") private String getMemFree () {S

SharedPreferences is also a lightweight data storage method.The essence is to store key-value pairs of data based on XML files.Is usually used to store some simple configuration information. Its storage location is/Data/ /Shared_prefs Directory. Read SharedPreference 1. Get SharedPreference object/** Name: name of the SharedPreferences file opened by name (. xml suffix is not required)* SharedPrefe

) {e.printstacktrace (); catch (Unsupportedencodingexception e) {//TODO auto-generated catch block E.printstacktrace (); Catch(IOException e) {//TODO auto-generated catch block E.printstacktrace (); } } }); } } Data/data/packagename/files/test is the file we write. SD storage (External storage)The Mnt/sdcard directory is the mount point of the SD card (just a point)

There are five ways to store data on the Android platform:1. File storage data;2. Use sharedpreferences to store data;3. SQLite database stores data;4. Use contentprovider to store data;5. network storage data;Here we will introduce file storage:The file storage method is a commonly used method. It reads/writes files i

Some of the application's configuration files need to be stored on the phone. Generally divided into internal storage and SD card storage.One. Internal storage, to FileOutputStreamNew File (Getfilesdir (), "User.txt"); // Open local File preparation record Try { new fileoutputstream (file); Fos.write (User+ # # # +pass). GetBytes ());

That's what we've been getting before.Before Android API18: Fs.getavailableblocks () *fs.getblocksize ()Currently/** gets the system available memory **/@SuppressLint ("Newapi") Private String Getmemfree () {StatFs fs = new StatFs (environment.getdatadirectory (). GetPath ()); return Formatter.formatfilesize (This, (Fs.getavailablebytes ()));} /** gets the SD available memory **/@SuppressLint ("Newapi") Private String Getsdfree () {if (Environment.get

Android can be used to store two places, one is the phone built-in storage space, an external SD card, the built-in storage space is generally relatively small, so the application of the cache is recommended to store the external SD card.How do I get the path to the storage in the