Basic knowledge of IOS development-navigation and basic knowledge of ios

Basic knowledge of IOS development-navigation and basic knowledge of ios

 

1: Basic knowledge of IOS development-fragment 1

A: interchange between NSString and NSInteger

B: basic types cannot be stored in Objective-c integration. For example, int string float can be stored only when they are converted to objects.

C: mutual conversion between NSDATA and NSString

D: Remove spaces from the input box (NSString is also applicable)

F: IBOutlet, IBAction description

 

2: Basic knowledge of IOS development-fragment 2

A: Get Another widget and perform redirection.

B: Determine the IOS version

C: The background image of the Button in different States

D: determines whether the device is 3.5 or 4.

E: called in viewDidLoad

F: Tree navigation (UINavigationController)

 

3: Basic knowledge of IOS development-fragment 3 

A: Device Identification

B: Application of enumeration

C: CGFloat, CGPoint, CGSize, and CGRect in IOS development

D: ios dynamically obtains the height and width of UILabel

E: Use of an attribute string (NSMutableAttributedString)

 

4: Basic knowledge of IOS development-fragment 4

A: return to the main thread for operations. UI Updates can only be performed in the main thread.

B: UIImageView usage Summary

C: obtain sub-controls using tags

D: dynamically modify the background image of the button

E: determines whether it is a simulator.

F: Convert hexadecimal color to UIColor

 

5: Basic knowledge of IOS development-fragment 5

A: differences between addSubview and insertSubview

B: loaded the "XXXView" nib but the view outlet was not set Solution

C: Relationship between UIViewController and UIView

D: Page value passing Problem

E: Set view and table View

F: jump through the Segue ID

G: Concepts of UIScreen, UIWindow, UIView, and didfinishlaunchingwitexceptions

H: @ property attribute of various data types

I: Hide Status bar, NavigationBar, and tabBarController)

J: good website favorites

 

6: Basic knowledge of IOS development-fragment 6

A: IOS multi-view jump Method

B: presentModalViewController and dismissModalViewControllerAnimated

C: View hop Animation

D: How to Use JSONKit

E: afnetworking2.0 is used in combination with json. After the afnetworking file is introduced, the header file can be used. arc is supported.

 

7: Basic knowledge of IOS development-fragment 7 

A: Implementation Principles of IPHONE resolutions and images in various versions

B: other knowledge pictures

C: Why is a m in the XCode project?

D: Perform the IP ing domain name operation locally on the MAC.

E: arm64 armv7 armv7s arm6

F: TCWeiboSDK 93 duplicate symbols for architecture armv7

G: Some attributes of UINavigationBar have changed.

 

8: Basic knowledge of IOS development-fragment 8

A: UIImageView is used as the background, but the button or UITextField cannot be placed on the background.

B: AFnetWorking reports "Request failed: unacceptable content-type: text/html"

C: mutual conversion between NSMutableArray and NSArray

D: Customize the return buttons and text on the navigation bar of the system, and add the buttons to favorites on the right.

E: Clear empty columns at the bottom of UITableView

F: How to hide the right-click header after navigation

G: to set the background image for the UICollectionViewController View

H: You can modify rootViewController elsewhere.

I: Sina Weibo authorized logon reports Warning: Attempt to present on whose view is not in the window hierarchy!

J: when a third-party TcweiboSDK is introduced, the linker command failed with exit code1 (use-v to see invocation) is reported)

K: NSUserDefaults stores NSDictionary

 

9: Basic knowledge of IOS development-fragment 9 

A: You can delete all nsuserults ults records in two ways.

B: set global navigation barbuttonitem

C: UITableView

D: solve the problem that OBJC_CLASS _ $ _ MBProgressHUD cannot be referenced.

E: An error occurred while refreshing the navigation bar via the SVPullToRefresh drop-down in iOS7.

F: When you want to update the layout

G: Add a rightView button to the right of UITextField)

H: NSLog output format set

I: Set the rendering mode of UIImage: UIImage. renderingMode

J: the current page of navigationController is hidden, and the jump back page is also hidden.

 

 

10: Basic knowledge of IOS development-fragment 10

A: How to add the background effects when selecting table cell columns?

B: Modify the text in the title bar.

C: code for a rolling startup page Function

D: add and delete controllers.

E: Research on the autoresizingMask attribute of UIView

F: The dispatch method provided by the system

 

11: Basic knowledge of IOS development-fragment 11

A: AFNetwork determines the network status

B: UIButton countdown

C: Determine the iphone Device

D: An Automatic Layout BUG is reported below IOS8, while IOS8 works normally.

E: interacts with JS, And the JS Code is compatible with android and IOS

 

12: Basic knowledge of IOS development-fragment 12 

A: Use Delegate

B: Implement UIButton display in different States

C: Adding click events in the uiview

D: The Rolling view UIScrollView is incompatible in ios7 and cannot be rolled.

E: Flip the icon on UIButton.

F: Create a background image and dynamically load it from the network.

G: Load xib to other views.

H: good plug-ins

I: What about ios7 and ios8 about the navigation bar?

J: differences between initWithNibName/awakeFromNib/initWithCoder

 

13: Basic knowledge of IOS development-fragment 13

A: run the program to report the file couldn't be opened because you don't have permission to view it

B: Baidu map reference

C: Custom pin Baidu Map

D: automatically hide and display the toolbar and navigation bar

E: some suggestions on View code structure

F: Method for generating random numbers in iOS

G: Knowledge sorting of sandbox paths

 

14: Basic knowledge of IOS development-fragment 14

A: Use ZipArchive to compress and decompress the ZIP file.

B: UITapGestureRecognizer

C: Custom self. navigationItem. titleView View

D: Implement uiscrollview with infinite scrolling

 

15: Basic knowledge of IOS development-fragment 15

A: Convert custom objects into NsData and store them in the database.

B: added a sub-controller to extract some public content la S and slim down the current viewcontroller.

C: Use the Protocol to separate calls

D: Use of kvo

E: Customize the accessoryView of UITableViewCell to determine which Button is pressed

F: directly use the UITableViewCell provided by the system. The cell. accessoryView can be used to customize the control.