Mobile Develop

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In this chapter, we learned that the Linux kernel provides multiple functions that interact with I/O memory, such as ioread16,ioread32 , Iowrite16 , iowrite32 , ETC., Linux the kernel's memory management module is responsible for synchronizing I/O

8th: Make the Development Board sound: BuzzerOne, Linux-driven code reuseThere are many ways to reuse Linux-driven code. The standard C program can be used in the way. Put the code you want to reuse in a different file (declared in the header file).

$("body").on("touchstart", function(e) {    e.preventDefault();    startX = e.originalEvent.changedTouches[0].pageX,    startY = e.originalEvent.changedTouches[0].pageY;});$("body").on("touchmove", function(e) {    e.preventDefault();    moveEndX =

Learning the eighth chapter, which is the buzzer-driven knowledge, is designed to master the common use of code reuse by Linux drivers. Linux code reuse, forcibly uninstall Linux drivers, buzzer (PWM) drivers. Compilation is a Linux driver composed

This chapter introduces the realization of the original plow of the buzzer, and realizes a complete buzzer drive (can open and close the buzzer), the buzzer is also called PWM pulse width modulation, the basic principle is to control the buzzer by

1. Open the software and click below2. Configuration as followsRefers to the project nameWhere your own code pack is stored, by defaultLocation of project Storage3. After clicking NextChoose the API version of the code (no special needs default)4.

Method One:If you simply pass list or list, you can use it directly.Java codeIntent.putstringarraylistextra (name, value)Intent.putintegerarraylistextra (name, value) Method Two:   If you are passing list, you can convert the list to serializable

1. Newly created project for the previous lesson2.andriodmanifest.xml: Each Android project contains a Androidmainfest.xml file that contains every acitivity, Service, Content that makes up the application Provider and broadcast receiver nodes, and

The reuse of code is divided into static reuse and dynamic reuse. Static Reuse:Adopt a standardCprogram, put the code that will be reused in other files, and if you want to use some of the appropriate features,includeThe corresponding header file

ObjectiveA while ago looking at masonry, the new third-party layout framework, began to learn about chained programming. And then slowly began to understand functional programming and responsive programming. In this concentrated programming thought,

(i) overview(ii) ActivityThe relationship between 1.activity,window and viewThe following is their own access to information, read the next point of the source of the induction, if it is wrong to write the welcome point! Below is a summary

The tenth chapter of "Android Deep Exploration" is about the debugging technology of Embedded Linux. For complex Linux drivers and libraries such as HAL, you need to test them in a variety of ways. The use of the PRINTK function is similar to the

Hal is a set of libraries built on Linux drivers. This library is not part of the Linux kernel but is the application layer on top of the Linux kernel layer.Google's main purpose for adding Hal to Android is as follows:1, the unified hardware call

The buzzer is a hardware device on the S3C6410 Development Board that can control the buzzer by writing a specific value to the register.In the previous chapters, two complete Linux drivers were written: Word_count Drive and LED driver, two have one

Buzzer Driver--8th Chapter reading notes and ExperienceThrough this chapter study, learned the PWM drive experiment, knew the buzzer realization principle. A buzzer is a hardware device on the Development Board that can control the buzzer by writing

The PWM driver is implemented differently than the LED,PWM drive consists of multiple files. This is the standard way to implement most Linux drivers. A complex driver does not put all of the code in one file. The associated code is placed in the

9th Hardware Abstraction Layer: HALHal (Hardware abstract layer, hardware abstraction layers) is a set of libraries built on Linux drivers. This library is not part of the Linux kernel, but rather belongs to the application layer on top of the Linux

To store the added blacklist to the local database:Create a blacklist database that will store number (phone Numbers) and mode (mode)1 Phone 2 SMS 3 AllDatabase creation:

The harassment blocker adapter is simple, with only one view