Android

What's TLS? TLS is Thread Local.Storage. Three types of variables are supported for TLS threads: local variables, local variables (TLS), and global variables. TLS differences: All threads use the same variable name or indexAccess TLS variables,

Getevent/sendevent source code The source code of these two commands is in system/CORE/toolbox/, and sendevent. c getevent. c Getevent Use getevent to obtain the events reported by the/dev/input/eventx device. This command also outputs the basic

Turn: http://hi.baidu.com/xx%B9%C2%D3%B0%C6% AE %C1%E3xx/blog/item/d8257c44941db12bcefca3c1.html Let's start porting now. First, decompress your tslibonandroid file package and put it into the external \ tslibonandroid directory. in this folder,

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

Aapt stands for Android asset packaging tool and is supported in the tools/directory of the SDK. this tool allows you to view, create, and update zip-compatible archives (ZIP, jar, APK ). it canAlso compile resources into binary assets. Aapt is the

\ ItemCTRL + P to view the variable parameter information, that is, to see the type of the Variable\ Item Ctrl + B find the location defined for this variable.\ Item Ctrl + q find the quick document, that is, open its declaration in another window\

0. Special terms 1. Physical Structure 2. System Architecture   This article uses the Freescale IMX platform codec alc5625 as an example. 0. Special terms ASLA-advanced sound Linux architecture OSS-previous Linux audio architecture, replaced by

An snd_kcontrol was analyzed yesterday. It can be considered that the upper-layer application uses the name to identify the name to traverse the underlying snd_kcontrol linked list and find the matched kcontrol. See snd_ctl_find_id Function /** *

Every time boardconfig. mk was modified, it was silly to make clean and re-compile it. This wasted countless times. Later, I couldn't stand this kind of efficiency. I Googled it. As expected, modules can be compiled independently. 1. Go to the

Dialog (pop-up box effect) is often used in Android, which is very powerful and can simulate n pop-up box effects. : The following uses a small instance to demonstrate the powerful dialog in Android. The Code has been commented out in detail. You

Original article, if reproduced, please indicate the source: http://blog.csdn.net/yihui823/article/details/6702273   Framelayout is the simplest layout. All controls placed in the layout are stacked in the upper left corner of the screen by

Reprinted please indicate this article from "LIU Da's csdn blog": http://blog.csdn.net/Poechant 1. radiobox and radiogroup In the article "android development path (5) widgets, activity and intent", we have initially come into use with radiobox,

Address: http://blog.csdn.net/you_and_me12/article/details/7961573 2012-09-10 From today on, I learned how to import box2d. in Java, It is jbox2d (download! I wrote helloworld at the end of this Article for your reference only. Note: I) box2d is

2013-07-07 Lead:Matrix is the processing of Image Rendering (rotation, contraction, translation, and so on) in Android. It seems that this method is used to flip books. Body: 1. Rotate degrees degree, postrotate (float degrees, float PX, float Py)

Phonegap has submitted the source code to Apache and has become a very popular open-source framework, Cordova. Its cross-platform features have a taste and momentum of Java, it has become a mainstream solution on mobile platforms. Today, I tried its

Android graphic Performance Analysis1. Draw a picture in the direct view.Draw a picture in the view with ondraw (canvas g.On the simulator, I sequencing the performance of four 320xforwardeddiagrams into the View:First, the bitmap graph for

In Android, We can inherit the view to create components exactly as we wish. However, sometimes, the components we need are implemented by a combination of the existing components, then we can use the component synthesis technology.   To create a

A bug found during the product testing process is that after the tester repeatedly clicks a button and triggers toast, the toast content will always be displayed in the queue and cannot disappear quickly. This may affect your use. Toast has a cancel

First, users may regard this practice as a rogue software. Most of the time, programmers do not want to turn the software into rogue software. No way, the leaders have the say.   When using some Android applications, we may find that some services

There are many layout units in Android, such as: (DP, SP, PX, In, PT, and mm). But what is the difference between them? When should I use it again? I think even experienced developers sometimes cannot understand it. DPI (DOT per inch): used to