Mobile Develop

#pragmaRegular match phone number+ (BOOL) Validatemobile: (NSString *) mobilenum{/*** Mobile phone number* Mobile: 134[0-8],135,136,137,138,139,150,151,157,158,159,182,187,188* Unicom: 130,131,132,152,155,156,185,186* Telecom:

After the project is on-line generally involves upgrading, then iOS how to get the version number from AppStoreActually, it's simple. NSString *url = [[NSString alloc] initwithformat:@ "http://itunes.apple.com/lookup?id=%@", @ "987953868"];The

Hander and message1.handeraction: Accepts data from a child thread (message or Runable object) to update the bound object. Why it appears: There are some time-consuming actions in Android or other applications, and if they all appear in the main

Reprint Please specify source: http://blog.csdn.net/l1028386804/article/details/47450717Library functions:| -for code reuse , the C language provides some common use for performing some standard tasks ( such as input / output ) Functions , these

Use of iOS network access afnetworkingAfnetworking is a popular third-party network access Library on iOS, and we can download it on GitHub, with its detailed instructions on GitHub, and the latest AFNetworing2.0 and 1.0, which are only a summary of

Android CardView use and import error issuesThe first part: The problem of importing Android CardView error.Android CardView is a view component of Android in the Support.v7 package, along with a recyclerview.Location in the SDK package for Android,

Csapp && LAB5Experimental instruction book:http://download.csdn.net/detail/u011368821/7951657Experimental materials:http://download.csdn.net/detail/u011368821/8019293To get this done, take a look at the notes, and review how block is organized. just

iOS Code library the Activity a drop-down refresh (Pull-to-refresh) 143 Menus (menu) location information (gps/location) IOS Forms a reminder (Notification) IOS Database 171 Buttons (button) 293 list (table) 343 images

1. Use different layout filesRes fileSelect Layout Ctrl + CSelect Res Ctrl +vCreate layout for Layout-land horizontal screen displaySimilarly create layout for the Layout-port vertical screen displayPicture Horizontal screen Vertical screenCheck

1. Do not drive too many threads at the same time (no more than 5 threads, not more than one thread) 2. Threading Concepts 1> main thread: UI thread, displaying, refreshing UI interface, handling events for UI controls 2> Child Threads: Background

Friends who have written a Web page should know that the ALT attribute is the text that appears when the default image of the control img is displayed, if the control's picture is not set or the picture is not found, the display is not displayed,

Brief introduction: Deep. Shallow copy and Copy.strong deep. Shallow copy Copy mutablecopy NSString NSString *string = @"汉斯哈哈哈";// 没有产生新对象NSString *copyString = [stringcopy];// 产生新对象NSMutableString *mutableCopyString = [string

#!/bin/bashstat_ok=0stat_warning=1stat_critical=2stat_unknown=3total_mem= ' free -m |awk  ' NR==2{ print $2} ' used_mem= ' free -m |awk  ' nr==3{print $3} '  free_mem=$[$total _mem  -  $used _mem]use_percent= ' echo  $total _mem  $used _mem|awk  '

IOS often encounter such situations, such as network connection errors, need to pop up a text prompt, and then automatically closesuch as login success prompt login complete, later close The implementation is as follows, we

Android security mechanism: AddressAndroid apps are running in a sandbox. This sandbox is implemented based on the user ID (UID) and user group ID (GID) provided by the Linux kernel. Android applications during installation, the installation service

John's N (2≤n≤10000) cows are very excited because it's prom night!         They wear dresses and new shoes, not flowers, they want to perform a round dance. Only cows can perform this round dance. The round dance needs some ropes and a round pool.

First, the phone interface to create the bottom of the action bar.1 style>2 . Opers{3 position:Absolute;4 Bottom:0px;5 Left:0px;6 Right:0px;7 Height:3rem;8 Background-color:#fbfbfb;Display:flex;Display:-webkit-box;9 }. opers a:before{Font-size:1.25

Custom controls, Video tutorialsHttp://www.jikexueyuan.com/course/1748.html1. Writing the Custom view2. Join Logical Threads3. Extracting and encapsulating a custom view4. Use XML to define styles to influence display effects-------------------------

User does not has to grant any permissions when they install or upgrade the app. Instead, the app requests permissions as it needs them, and the system shows a dialog to the user asking for the Permission.Overview With the M Developer Preview,

Custom View Implementation Login Registration page EditText One-click empty function, The effect is as Follows:Input box after entering text automatically appears a key empty key, the input box text is empty, a key to clear the key to hide, below we