deep linking android

Library. Service Libraryit can be normal.Linux Library, or it can be notThe Library. In this chapter,LEDThe driver example willService libratγand criminalI Librarytogether. In other words,Service Libraryis thatJNI Library.In fact, this step is in addition toCICimplementation of the item *. solibrary file, you should also include aJavathe service management classes written(ServiceManager). ServiceManageris calledService Library. andAPKprogram will callServiceManagerClass meter AccessService Libr

Google for Android to join Hal mainly for the following purposes. The calling interface for unified hardware. Because Hal has a standard calling interface, HAL can be used to mask Linux to Drive complex, non-uniform interfaces. GPL;" copyright issue. Because linux kernel based gpl agreement, and apache Licence 2.0, agreement. Therefore google played a" crossing ", will originally be located in LinuxlinuxFor some special requirements. For some har

of the virtual file in the read-write/pron directory, proc_dir_ Entry struct represents a virtual directory or file(iv) Commissioning toolsLinux systems provide a class of tools that line up the code of the program, which includes GDB, Gdbserver, and debug kernel space programs for debugging user-space Programs kgdb GDB Debug User space program GDB can track programs that debug user space and can only be tested on a PC2.gdbserver Remote Debugging User space programUse Gdbserver to

Android audio and video goes deep into thirteen OpenSL ES to create a music player, which can pause and adjust the volume (with source code download), androidopensl Project addressHttps://github.com/979451341/OpenSLAudioOpenSL ES is a public audio API developed based on NDK, that is, the underlying C language. It can be used to achieve standardized, high-performance, and low-response-time audio functions.Th

I. Implementation of custom ControlsThe custom control needs to inherit the Baseadapter abstract class, which implements the ListAdapter, Spinneradapter two interfaces, which inherit the adapter interface class, yes, inherit adapter interface , and the four methods implemented by the custom control also come from the adapter interface;These four methods are described in detail below:Returns the number of records, if the data source is an array, returns the array length, or the size of the collec

uninstallationStep two: Register and unregister the device filesCreate and remove device files using the misc GI mis dere ter function, respectively.Step three: Develop something related to the driveMOD ule_a uthormodule CE SE MOD ULE LI MODUL DES ript IO macros can specify driver-related information.Fourth step: Specify the callback functionA driver does not have to specify all the trap functions. The callback function is registered through the relevant mechanismFifth step: Writing business lo

GPB1;Control LEDs need to be completed by 3 registers;Each register can use 4 bytes;Use the low 16 bits of the Gpmcon register to set the two port properties of the LEDs to output;Low 4-bit control LED is illuminated using the GPMDAT register;Use the low 8 bits of the GPMPUD register to turn on the LED light's pull-up circuit respectively.Control LEDControlling LEDs by string: Using the command line or through the Write functionControl led via I/O command: via the IOCTL functionModule parameter

This chapter is the switch that sends data control LED lights through the Linux drive . At the beginning of the led lights through the drive control we need to create the led Drive device files :First step: Initialize the cdev with the cdev-init functionStep Two: Specify the device numberStep three: Use the cdev-add function to add a character device to the character device array in the kernelFourth step: Create a struct class using the class-create MacroFifth step: Create a device file using th

the Git Documentation:#man git-checkout to view the Help document; #git helps view in text form ;#git help git-checkout The document used to view the checkout command. #git help-w git-checkout view HTML -formatted files. Third, the source code to submit and obtain the steps:1. Create the repository git init. # mkdir-p/demo/helloworld-git// Create an open source project working directory # cd/demo/helloworld-git// Enter working directorySubmit source code, execute 'git init' command# Ls-al// dis

main branch from modification. Switching between different local branches can be done by using thegit checkoutcommand implementation. FromGitHubDownload Source code:git cloneYou can use the command "# git clone [email protected]/helloworld.git]Download the project, use the command"# git pullorigin master"to get the latest content for the branch. in github Create project, github is the current mainstream of the Span style= "Font-family:times New Roman;" >git hosting service provider, up

toAndroidworks on different hardware platforms and supports onlyCPUarchitecture is not enough and must be madeAndroidvarious hardware that can identify the platform. These efforts are largely dependent onLinuxkernel to complete, which will mostly also die by theLinuxDrive, so that the system is ported in addition to portingCPUarchitecture, the most important thing is portingLinuxDrive. In addition, a hardware abstraction layer is added (HAL,Hardware Abstraction Layer).It then tells the viewLinu

-m ' helloworld-master '//Submit files to the repository# git Log//display log information# git checkout helloworld.txt//immediately revert to the state of the most recent commit. Create a local branch# git branch//See which branches are in the current repository# git branch new-branch//Create a new branch# git branch-d new-branch//Delete a newly created branchSwitch to local branch# git checkout new-branch//Switch the current local branch to New-branch# git Add helloworld.txt#git commit-m hello

the language tests theLinuxDrive, so it's easy to think about the useANDROIDNDKto testLinuxDrive, due toAndroid NDKalso useC + +to write a program, so you can take advantage of the previous section'sClanguage code, of course, plus someANDROIDNDKunique code. When usingANDROIDNDKTestLinuxThere are two things to do before driving. (becauseLinuxThe drive module does not follow theAndroidthe system starts and loads, so you must performbuild.shscript File InstallationWord CountDrive. Cannot start usi

This chapter is the switch that sends data control LED lights through the Linux drive. At the beginning of the LED lights through the drive control we need to create the LED drive device files : First step: initialize the cdev with the Cdev-init functionStep Two: Specify the device numberStep three: Use the cdev-add function to add a character device to the character device array in the kernelFourth step: Create a struct class using the Class-create macroFifth step: Create a device file using t

electric groundLEDnumber is4)。 through to/DEV/S3C64 L OLEDsSend length to1to the4the string can control the4aLEDthe switch. Lindicates open,0indicates off. If the string is not long enough4equivalent to the back of the0. To create an LED -driven device file :Step 1 : Initialize the Cdev with the cdev_init function . Step 2 : Specify the device number. Step 3 : Use the cdev_add function to add a character device to the character device array in the kernel. Step 4 : Use the class_create macro t

YHelpThis is a word count driver. It can get a word count from/dev/wordcount(2) Modify the Makefile file (3) Modify the Kconfig of the upper directorySOURCE "Drivers/char/word_count/kconfig"(4) Modify the Makefile file of the upper directoryobj-$ (conpig_word_count) + = word_count/After modifying the Linux kernel settings and recompiling the kernel, Linux drivers that were previously compiled with the linux kernel may not be installed due to a malformed format, so after recompiling the Linux

directory4th Step: Modify the Makefile file of the upper directoryDeveloping and testing Linux drivers using eclipse1th Step: Build C Project2nd step: Establish C source code file link3rd Step: Set the Include path4th step: Compiling Linux driversTesting Linux drivers in eclipse1th Step: Import the Test_word_count.c file2nd step: Set the Include path3rd Step: Set Target4th Step: Build Project5th step: Run the test programAfter reading this chapter, this chapter has done some simple summary of t

This chapter provides a detailed introduction to the Minicom Serial debugging tool, which includes 4 steps, and requires Eboot erase Nandflash before burning the Android system into 5 steps. Now there are a variety of development boards on the market, we should grasp the method based on a detailed understanding of the differences between the different development boards.This chapter also learns about the Development Board test environment, because we

The Android emulator can only use the Kgdbserver debugger through port mapping. However, the Development Board can be connected via the serial port in addition to the IP connection to the Kgdbserver. The Development Board also has the Kgdbserver program, which can be run directly.Most developers think of KGDB as the best kernel debugging tool. In addition to providing a similar log output function for the PRINTK function, KGDB allows developers to lin

new structures, the data type of the first variable of the two structures must behw_module_tand thehw_device_t. Also want toHALmodule to set aID, this step is equivalent to writingleds_hal.hthe code for the header file. 2, writingHALmodule'sOpenfunction,Openfunction isHALThe entry point of the module, the function: Initializehw_device_tthe word structure body;open the device file; initialize the register. 3, definehw_module_methods_tstruct variable. 4, defineHal_module_info_symvariable. 5, writ