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4. File: a traditional I/O Stream storage File. Activity provides the openFileOutput () method to output data to a File, the specific implementation process is the same as saving data to a file in the J2SE environment. The following example shows how to save, read, and save a file on the SD card. (1) save the file and copy code 1 public void save (String str) {2
directory on the SD card, you should place your app package name corresponding to the extended storage directory, uninstall the app can be automatically cleared.
There is an upper limit on the amount of disk space occupied, and according to certain policies to clear, such as DISKLRU algorithm.
Android File storage directory: 1.)ApplicationPrivate
Android 14th --- SQLite of Android heavyweight data storage --- androidsqlite
Preface
Unconsciously, the Android basic series has written 13 articles, which are 14th articles ~ The previous blog recorded a data
Needless to say, the operation of the database is immediately followed. Come on!When it comes to data storage problems, the database has to be mentioned. A database is an ideal tool for storing relational data. Android provides a powerful database support for developers to easily construct database-based applications.
Virgins Android (13th) --- SharedPreferences and sharedpreferences for lightweight Android Data Storage
I. Preface
Reprinted please indicate the source: http://blog.csdn.net/wlwlwlwl015/article/details/42437007
When I was a beginner in Android, I used the Intent + Bundle
Three File data external storage
Each Android device supports a shared "external store" that you can use to save files. This could be a removable storage medium (such as an SD card) or an internal (fixed) store. Files saved to the external store are public and can be modified by the user.
Note: Files on external
The Android system provides four data storage methods. They are SharePreference, SQLite, Content Provider, and File. In Android, data is basically private and stored in the "data/package name" directory. Therefore, to share
The backup service of Android allows you to copy persistent application data to remote "Cloud" storage, so as to provide a restore point for application data and settings. If you restore the factory settings or convert the application to a new Android device, the system auto
Data is the core of Shenma platform, Shenma development environment, Shenma software program. For the development platform, if you have good support for data storage, it will greatly promote application development.
Generally, there are three Data Storage Methods: file, data
Whether it is God horse Platform, God Horse development environment, God Horse software program, data are the core. For the development platform, if the data storage has good support, then the development of the application will have a great role in promoting.
In general, there are three ways to store data: One is a fi
Data storage and interface display based on Android Application Development (I): android Application DevelopmentDirectory structure of the Android Project
Activity: interface displayed when an application is opened
Src: project code
R. java: Resource id of all resource f
data needs to be written, which is the writing data is done by the editor object,if (textutils.isempty (name) | | Textutils.isempty (pwd)) {//To determine if the input data is empty or empty, then make a hintToast.maketext (This, "account name or password cannot be empty", Toast.length_short). Show ();}else {//When you click the OK button, you need to write the
Last time I introduced you to the basic information and usage process of SQLite. I believe my friends have some knowledge about SQLite. Today, I will share with you how to use SQLite in Android.
Currently, mainstream mobile devices such as Android and iPhone all use SQLite as the storage engine for complex data. When w
Storage OptionsEnglish Original: http://developer.android.com/guide/topics/data/data-storage.htmlAcquisition Date: 2015-02-06Overview of storage methods
Shared Preference for simple data
Internal storage for private
Reprint: http://mp.weixin.qq.com/s?__biz=MzIzMjE1Njg4Mw==mid=2650117688idx=1sn= D6c73f9f04d02ede7a741b45e801d74e#rdThis article will help you quickly learn about the various data storage mechanisms in Android and how to use them in order to create a "directory" in your mind. With this directory, the details of the use of the actual application to query the docume
Android Development 7: simple data storage (using SharedPreferences) and file operations,Preface
La la ~ Hello, everyone. Meet again ~
This blog post describes how to complete a memorandum for registration and logon, learn basic usage of SharedPreferences, learn common file operations in Android, and review programming
PrefaceRecently in the "first line of Android code" and "Crazy Android Handout", my feeling is that the essence of Android application is the data processing, including data reception, storage, processing and display, I would like
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