IOS

Sometimes in the project requires a text box can only enter numbers, such as: Price, mileage, fees, etc., the general text box does not limit the format of the input, this time can only be forced to restrict the input box input format, the code is

Ask a question: 1. Why do I need to customize Nsdictionary key?2. What is the system requirement for a custom key? For: 1. The real problem I encountered was a level three menu, each of which required records to be selected. I chose to use three

1. This method, the call is not back to the original application, will stay in the address book, and is directly dial, not pop-up prompts Nsmutablestring *str=[[nsmutablestring alloc] initwithformat:@ "tel:%@", @ "186xxxx6979"];NSLog (@ "str======%@

Sometimes when we use Tableviewcell to present our data, we receive more data than we set when we initialize it, and we need to adapt the cell height. Here's the code to return the cell height. -(CGFloat) TableView: (UITableView *) TableView

In order to save traffic, but also for a better user experience, many applications now use the local caching mechanism so I looked up the relevant data from the Internet, and found that there are generally two ways. One is to write their own cache

First effect chart Because Xcode in the uipickdate on four modes, there is no only the pattern of years, so when there is a need to use uipickdate feel a bit of a pit, so here to give you the Uipickview use method This is the initialization

iOS set the alignment/size and color of the font on the UIButton Set the alignment of the font on the UIButton, not by: [Paywaybutton.titlelabel Settextalignment:uitextalignmentcenter]; But by: [Paywaybutton

Sometimes we need to take the elements out of the array and then put them in a string and separate the elements with commas, and if we use [NSString stringwithformat:@ "%@%@", @ "", @ ","] stitching up, not to achieve the desired effect. A very

The first constraint Settings menu has several features in the "Editor-> pin-> ..." menu that opens the storyboard interface: Set width, height; The effect is not obvious. Set the horizontal and Congxiang distance

To achieve a simple uitabbar: Appdelegate.m The code is as follows Copy Code -(BOOL) Application: (UIApplication *) application didfinishlaunchingwithoptions: (nsdictionary *) launchOptions{Self.window = [[UIWindow

The control of the UITableView control in the Iphone/ipad development process has many interesting places, such as implementing scrolling controls common to Android and returning to the top effect, which can be achieved with the following code, but

The Uiactionsheet in iOS offers only a handful of styles in the SDK that basically meet the development requirements, but also encounter more cumbersome requirements, which require a separate custom uiactionsheet to modify the button's properties.

Uitabbarcontroller can implement multiple Uiviewcontroller independent displays, but the control of the relationships between the Uiviewcontroller is not very well controlled, especially when the most recently selected tab number is not recorded.

Effect: The code is as follows Copy Code 1. The Custom click button toggles the different Tableviewcell, the effect as shown in the picture Hqsliderview.gif

As long as there are some controls in iOS that have the function properties of ScrollView, when the interface is very long and slide to the bottom, the user wants a key back to the top.We can set a button and set a click method for the button.

As we all know, UITableView's left-slip removal function is very cool, sometimes left-sliding features more than just delete one, sometimes there will be the other functions such as the top, this time we need to customize the left-slip -(nsarray*)

The official version of iOS10.2 is about to be released, but the iOS10 jailbreak tool is still not released. Does iOS10 still need to be released? Can iOS10 be jailbroken? The following small series will discuss with you.IOS 10 requires no

Yesterday, the latest version of Apple's iOS version Weibo was updated to V6.12.2, including the iPhone, iPad, and Apple Watch versions.This version adds the information flow function to quickly obtain rich information and video upgrades. The

Open the App Store and slide to the bottomClick the Apple ID and select "View Apple ID" in the pop-up window. Password verification is usually required.Click "country/region" in account settings"Select "change country or region"Here you can select

1. Download the Taiji jailbreak toolDownload Address: http://apt.taig.com/installer/TaiG_1006.zip2. If the jailbreak occurs, you must disable "Find My iPhone"IPhone 6 plus "Settings-> icowould-> Find My iPhone" can be turned off.3. Disable the