what is user interface

Guo XiaoxingWeibo: Guo Xiaoxing's Sina WeiboEmail:[email protected]Blog: http://blog.csdn.net/allenwellsGithub:https://github.com/allenwells"Android App Development technology: User Interface" chapter list one px, DP, SP PX: pixels, each px corresponds to a point on the screen. DP: A device-independent pixel, an abstract unit based on screen density, on a display of 160 dots per inch: 1 DP = 1 px.

is not enough, the level is limited, the translation process if I am not sure or can not describe clearly I will attach the original text, the aspects of the people understand. If there is a translation error or inaccurate description, please do not hesitate to write.Apple's official IOS Human Interface guildlines con

One, why the GUI is single-threaded traditional GUI applications are usually single-threaded.1. There is a need to call the poll method at each location of the code to get the input event (which would be very confusing to the code)2. Run the entire code of the application indirectly through a "main event loop".It is assumed that the code that

Achieve resultsThe PHP implementation code is as follows:Define variables and set to empty values$name = $email = $gender = $comment = $website = "";if ($_server["request_method"] = = "POST") {$name = Test_input ($_post["name"]);$email = test_input ($_post["email"]);$website = test_input ($_post["website"]);$comment = Test_input ($_post["comment"]);$gender = Test_input ($_post["gender"]);}function Test_input ($data) {$data = Trim ($data);$data = Strip

verification code is a bad user experience, not necessary to not easily use the verification code, many of the current practice is that if a short period of time to submit a form is not successful after the request to provide a verification code, This will get a better user

Ordinary users can not log on to the Linux graphics interface, only the root user login to the graphical interface (ordinary users, username and password input correctly, click Login, 2 seconds later returned to the login interface, that is, can not log in.) The solution to

I. Why is the GUI A Single-threaded traditional GUI application usually is single-threaded.1. You need to call the poll method to obtain input events at all points of the Code (this method will bring great confusion to the Code)2. Indirectly execute all the code of the application through a "Main Event Loop.If the code called in the main event loop takes a long time to be executed, the

There are several reasons for this: It is best to look at the log first,/var/log/xorg.0.log. 1, there is not enough disk space. Solution: Character interface login, delete some files, free up some space, restart can be. The permissions issue for the 2,/home/username folder. Solution: # chown Username:username/home/username-r The permissions issue for the 3,/tmp f

What is Chip Decryption ? What is IC decryption ? What is a single-chip microcomputer decryption ? Brief description of Chip decryption: nbsp; Chip decryption is also known as a singl