Mobile Develop

1 , overviewMany iOS apps support preferences such as saving usernames, passwords, font size, and so on, and iOS offers a standard set of solutions to add preferences to your app.Each app has a Nsuserdefaults instance that accesses preferences. For

1. The common properties that all controls inherit from Uiview,uiview are as follows:@property (nonatomic,readonly) UIView *superview; Get your own parent control object@property (nonatomic,readonly,copy) Nsarray *subviews; get all of your child

This method is called when the following two scenarios occur:(1) When the frame of a control changes.(2) When you are laying out child controlsIn general here the child controls inside the layout (set the child control's frame)For example:-(void)

1 , Uiscrollview usage of :(1) Add the content that needs to be displayed to Uiscrollview(2) Set the Contentsize property of the Uiscrollview, tell Uiscrollview all the dimensions of the content, that is, tell it the range of scrolling (how far to

Each line of the system's default UITableViewCell has horizontal lines (separators), even if there is no data, and sometimes we want to underline only where there is data, to remove the underscore, The Addsubview method is then used in the

1 , overviewThe Nskeyedarchiver archive and the plist file store are different Nskeyedarchiver can save objects directly . If the object is NSString, Nsdictionary, Nsarray, NSData, NSNumber and other types, you can archive and restore directly with

Extends from the last chapter, this chapter takes a look at some real-world problems so can occur as you move your APPL IcationFrom testing to a live website, Through This chapter you'll learn more important PHP and SQL code.First problem:its never

After building a project, you will see a "project name-info.plist" file under the supporting Files folder, which is very important for the project to do some run-time configuration, so it cannot be deleted.In the project created by the older version

Same point:(2) is used to describe the software interface(2) Use Interface Builder tool to editDifferent points:(1) Xib is lightweight and used to describe the local UI interface(2) Storyboard is a heavyweight, a multi-interface for describing the

The next AndroidStudio uses the tutorial, mainly for the introduction of the Android Studio shortcut keys, if we have mastered some of the common shortcut keys, then the use of AndroidStudio will achieve a multiplier effect in the process.----Common

看到网上很多教程对此类的问题解释竟然出现错误，其原因是没有理解Provisioning Profile、certificates的作用，和代码签名的原理[错误博客地址](http://blog.csdn.net/yuanbohx/article/details/9213879)，希望大家可以正确理解Create an ad Hoc Provisioning Profiles in iOS Dev center firstBuild step Reference This is the 2nd

Pros: Say one1, Google launched, this is its biggest advantage, Android StUIdo is Google launch, specifically for Android "tailor-made"2, faster, Eclipse startup speed, response speed, memory consumption has been criticized3.UImore beautiful,

The phone has not been able to connect to the computer with USB, try a variety of methods, always prompted to install the driver failed, or can not find the file.On the internet to find a variety of methods, and later turned out to be my own hands

Remove translucent overlays (IOS) or gridlines (Android) for click Links and text box objects-webkit-tap-hightlight-color:rgba (0,0,0,0);Disable the pop-up menu when long pressing the page (active under iOS)-webkit-touch-callout:none;Still page text

Write a program on the Android phone, the function is to complete a two-digit operation. This operation is done in Java background, the Android side uses the HTTP communication to pass the relevant parameters, the background after the calculation of

Hibernate is a data access layer that uses a configuration file (Hibernate.properties or Hibernate.cfg.xml) and a mapping file (***.hbm.xml) to put Java objects or PO (persistentobject, Persistent objects) are mapped to databases in the database,

/*** Calculate Text Size** @param text to calculate the size of text* @param font of font text* @param the maximum size of maxSize text*/-(Cgsize) Sizewithtext: (NSString *) text font: (Uifont *) font maxSize:(cgsize) MaxSize{Nsdictionary *attrs = @{

/*** Called when the screen is about to rotate** @param tointerfaceorientation The final direction after the rotation is complete* @param duration The time it takes to rotate the animation*/-(void) Willrotatetointerfaceorientation:

1 , NSObject the Multithreading Method ( When you use it, use it. @autoreleasepool {} Wrap it up. )To open a background execution task:-(void) Performselectorinbackground: (SEL) Aselector withobject: (ID) argApple's bottom layer allows the UI to be

1 , overviewWhat is Uidynamic?Uidynamic is a new technology introduced from iOS 7 and belongs to the Uikit framework.Can be thought of as a physics engine that can simulate and emulate physical phenomena in real life. For example: gravity, elastic