Mobile Develop

I. Introduction to the type of meta-group1. What is a tuple typeA tuple type consists of n arbitrary types of data (n >= 0), and the data that makes up the tuple type can be called an "element"Example:Let position = (x:10.5, y:20)//position has 2

First, Brief introduction1. What is Uipopovercontrolleris a common controller in ipad development (not allowed on iphone)Unlike other controllers, it inherits directly from NSObject and does not inherit from UiviewcontrollerIt takes up only a

Android Development Website:JSON Data Parsing toolJSON data online parsing: http://www.kjson.com/jsonformat/JSON data local parsing software: HijsonAndroid Studio Common pluginsGsonformat formatting of Gson dataCodeglance provides a reduced-code

Just need, on the internet for a long time, record 1 function IsMobile () {2 $useragent =isset ($_server[' http_user_agent '))? $_server[' Http_user_agent ']: '; 3 $useragent _commentsblock=preg_match (' |\ (. *?\) | ', $useragent, $matches)

Call/apply is used to change the scope of the function, the first parameter is this, the second parameter is the value of the transfer, for example var a = "WindowA" ; var b = "WindowB" ; var str = "str" ; var myObject = {A: "MyA",

Determine the phone model var u = navigator.useragent; var device = ""; Current device information if (U.indexof (' Android ') >-1 | | u.indexof (' Linux ') >-1) {//Android phone device = "Android";} else if (U.inde XOf (' iphone ') >-1)

Android so file Debug analysis0x00: PrefaceBefore doing this problem found that there are seniors have done before, so the idea of preparing to write the process. After all, I am a novice, so write very wordy, which encountered a lot of details of

First, Introduction1. In the era of mobile internet, mobile apps can solve many of the user's life chores, such as(1) navigation : Go to any unfamiliar place(2) nearby : Find a restaurant, find a hotel, find a bank, find a cinema2. In the above

1, create UIView subclass named MyView 2, New a xib named MyViewP13, configuring The properties of the xibP24. Add a background color to the View, add a button and customize the button constraint, where I add a vertical center, buttonand View width,

FirstClick on the + sign to select a pictureIn fact, this addition itself is a ListView or RecyclerviewIt's just some special layout.ItemXML version= "1.0" encoding= "Utf-8"?>Liu.myrecyleviewchoosephoto.view.SquareRelativeLayoutxmlns:android= "Http:/

ObjectiveOnline there are many use Viewpager to achieve left and right sliding this effect of data, most of which is the Pageradapter in the GetCount () method to set the return value of Integer.max_value users do not see the boundary, The

There are only two main characters in touch event distribution: ViewGroup and view. The activity's touch event is actually called the ViewGroup touch event inside it, and can be treated directly as ViewGroup.View within the ViewGroup, ViewGroup can

When typesetting, pay attention to the difference between logical coordinate space and device coordinate space, pay attention to the difference between frame and bounds!-(void)Loadview{// ...Calculate the rect for custom Content viewif

Start by creating a new empty Xib file:Then customize the view in Xib (add the other views you want):To write a constraint, create a class that inherits UIView and associate it, and then you can call it.- (void) viewdidload {[Super viewdidload];

This mobile development encountered the Android 4.2 system can not trigger touchend problems, there are the following requirements.1. Horizontal Pulley Map2. Drop-down Refresh page content3.body scroll bar cannot be invalidatedThe Touchend event can

AdapterApiEntityHandlerUiUntilWidgetsAppcontent.java*************************************Image:Drawable: Storing various bitmap files (. png,.jpg,.9png,.gif, etc.) in addition to some other drawable types of XML filesMIPMAP-HDPI: High resolution,

iOS Development UI Chapter-calayer properties of the layerFirst, position and Anchorpoint1. Brief introductionCalayer has 2 very important properties: position and Anchorpoint@property cgpoint position;Used to set the position of the Calayer in the

Applicationcontext.xml can be put into the/web-inf/classes directory for useNew Classpathxmlapplicationcontext ("Applicationcontext.xml"); To read!If you are in Web. XML, you need to configure the context

Uiimageview:1- (void) Viewdidload {2 [Super Viewdidload];3 4Uiimageview *imgview = [[Uiimageview alloc] Initwithframe:cgrectmake (ScreenWidth/2- $, the, the, -)];5Imgview.image = [UIImage imagenamed:@"logo"];6 [Self.view Addsubview:imgview];7

A simple explanation　　One problem with the previous program is that it cannot be looped, because there are only five arrays in the plist file, so the first and last ones are gone, and here are some tips for dealing with this kind of loop