file locker for android

http://hold-on.iteye.com/blog/2064642---Original eclipse android settings and modify the generated apk signature fileBlog Category: Android Android Eclipse settings and modify the build apk signature file 1, issue: Usually when using Eclipse for Android project

Resource Access in Android Resources in Android refer to non-code parts and external files. Generally, native files are stored in assets. For example, MP3 files cannot be directly accessed by Android programs. They must be read in the form of binary streams through the AssetManager class. Resources in res can be directly accessed through the R Resource class. Th

A major feature of Android is its desktop notification system. unlike iOS Desktop Management, Android has a desktop system for managing and displaying apps and desktop widgets. Android provides a default desktop Interface Of course, we can also use third-party desktop applications. The android launcher source code is \

the keyedvectorDevice structure Information: Equipment FD (open (/dev/input/event) return) and information (Name/bus/vid/pid, which will open 3 profiles based on this information (Idc:input device config/keylayout: Keyboard layout/kcm:key Character Map), mapping informationAndroid input System Application layer key 1 with akeycode_1 = 8来, while in the Linux kernel key 1 is represented by the key_1=2, so there is a direct conversion between the two, using the keylayout is KL

When a program is in the development stage, you can view errors, exceptions, and other information in the development environment. However, when the program is handed over to the test environment or runs on a real device out of the development environment, you cannot be notified of the error. The only way is to record the log to a text file and view the cause of the error. Therefore, it is very important to record data from days to external storage de

When optimizing the Android DEX file, you must note that the DEX file structure is compact, but we still need to find ways to improve the running speed of the program, we still need to further optimize the DEX file. Adjust the byte order of all fields LITTLE_ENDIAN) and none of the fields in the alignment structure ver

I. Downloadmanager class description: A download management class has been added since Android 2.3. You can find android. app. DownloadManager In the SDK documentation. The download management class can process multiple HTTP download tasks for a long time. The client only needs to provide the requested Uri and the location where the target file is stored, downloa

1. Structure of the android File SystemAfter the android source code is compiled, the system. IMG, ramdisk. IMG, and userdata. IMG image files are obtained. Ramdisk. IMG is the file system of emulator. IMG includes the main packages, libraries, and other files, userdata. IMG includes some user data. After the emulator

I. Downloadmanager class description: A download management class has been added since Android 2.3. You can find Android. App. downloadmanager In the SDK documentation. The download management class can process multiple HTTP download tasks for a long time. The client only needs to provide the requested URI and the location where the target file is stored, downloa

First, build the environment 1. Installing the JDK and Android SDK 2. Configure Environment variablesD:\android-sdk-windows\toolsC:\Program Files\java\jdk1.6.0_20\bin3. Example InformationProject directory: D:\ProjectDemoSDK Directory: D:\android-sdk-windows\platforms\android-8\Second, the command line to compile the

Document directory 1. Step 1: Set the simulator to support sdcard Step 2: Set permissions in the Application Note: Suggestion: There are multiple ways to store data, such as database storage, sharedpreferences storage, and file storage; Here we will introduce the simplest file storage method; In simple terms, file storage is the IO stream in the general

Androidmanifest. XML is a file required by each application. It is located in the application root directory, which describesProgramA global variable of the package, including the exposed application components (activities, services, and so on) and the Implementation class of each component, the data that can be operated, and where to run.An important aspect (concept) of this file is the intent filter. this

Advantages: 1. Suitable for game storage, can store large data;2. Not only can be stored in the system, but also can be stored in the SD card!@ Save as: Stream data stream mode* @ Note 1: By default, files created using the Openfileoutput method can only be used by the app that they call.* Other apps can't read this file, if need to share data in different applications;** @ NOTE 2: Because the Android OS in

Resource Access in Android Resources in Android refer to non-code parts and external files.Generally, native files are stored in assets. For example, MP3 files cannot be directly accessed by Android programs. They must be read in the form of binary streams through the AssetManager class.Resources in res can be directly accessed through the R Resource class.The R

Android Anonymous shared memory the anonymous shared memory subsystem of the external Android system is implemented in kernel space in the form of a driver and provides a Java calling interface at the application framework layer. At the Android application framework layer, a memoryfile interface is provided to encapsulate the creation and use of anonymous shared

filtered getname () The string returned whether there is ". /”：2, dynamic link library file libdolphin.so, and is not placed in the Application Data Lib directory, but placed in the files directory:The place where the load is used is the searchredirector in the Com.dolphin.browser.search.redirect package:The app uses System.load () to load libdolphin.so instead of system.loadlibrary (), in Android, System.

is part of the media/download system.These test keys is used strictly in development, and should never be assumedTo convey any sort of validity. When $BUILD _secure=true, the code should notHonor these keys in any context.Signing using the OpenSSL commandline (for Boot/system images)--------------------------------------------------------------1. Convert pk8 format key to PEM format% OpenSSL pkcs8-inform der-nocrypt-in testkey.pk8-out Testkey.pem2. Create a signature using the PEM format key% O

is part of the media/download system.These test keys is used strictly in development, and should never be assumedTo convey any sort of validity. When $BUILD _secure=true, the code should notHonor these keys in any context.Signing using the OpenSSL commandline (for Boot/system images)--------------------------------------------------------------1. Convert pk8 format key to PEM format% OpenSSL pkcs8-inform der-nocrypt-in testkey.pk8-out Testkey.pem2. Create a signature using the PEM format key% O

Companies need to do an SDK, which need to use someone else to write the C file, the first time to do, all kinds of Baidu, a variety of learning, now do a small summary:First, create a new project: Example Exampledemo, the package is named: com.demo.example;Second, configure the NDK environment for the project:1, download the Android NDK, and unzip, my storage directory is: D:\sl\