Bluetooth technology
Blueetooth-le
Applications require low-power support for Bluetooth technology
(1) Description of user rightsTo protect privacy, end users must explicitly allow applications to access reminders, photos, locations, contacts, and calendar data. To persuade the user to accept it, it helps to explain how the application can use such data and explains why it is being accessed. Assigns a string value to the following key at the top
IOS 7 before: status bar managed by UIApplication 1. Hide the status bar: [[ Uiapplication sharedapplication Setstatusbarhidden:yes] ; 2. Set the status bar style: [[uiapplication Sharedapplication setstatusbarstyle: Uistatusbarstylelightcontent IOS 7 starts, status bar management to the corresponding controller to manage 1. Hide the status bar: override -(BOOL) prefersstatusbarhi
This article summarizes the iOS certificate (certificate) and configuration file (provisioning profile) in conjunction with the author's work experience.1. Release process650) this.width=650; "src=" Http://s5.51cto.com/wyfs02/M02/7E/E6/wKioL1cMnn7AVMhsAABhociPLMo999.png "title=" 1_ Administration_tasks_2x.png "alt=" Wkiol1cmnn7avmhsaabhociplmo999.png "/>Both the certificate and the associated configuration file are used during the development and rele
adjust its appearance, and the following properties allow you to fine-tune the appearance of the button as needed:adjustsimagewhenhighlightedBy default, when the button is disabled, the image is painted darker. To disable this feature, set this property to NO:btn1.adjustsimagewhenhighlighted = NO; AdjustsimagewhendisabledBy default, when the button is disabled, the image will be painted in a lighter color. To disable this feature, set this property to NO:btn1.adjustsimagewhendisabled = NO;sho
The Set button is not pressed: setenable[Button Setenable:no];Set dimmed: Setalpha[Button setalpha:0.4];Set Button Image: SetImage[Button setimage:[uiimage imagenamed:@ "Choice"] forstate:uicontrolstatenormal];Set Button title: Settitle[Button settitle:@ "];Determine if the button is transparent: istransparent[Button istransparent];Set whether the button is transparent: settransparentTransparent[Button Settransparent:yes];Not transparent[Button Settransparent:no];To determine whether a border is
iOS Pagecontrol control does not have a point color settings, the beginning of their own do not believe, a color property modification, Apple will not so pit it, do a lot of things you will slowly find that Apple is so resistant, a lot of functions to improve themselves.Originally found some information on the internet is to Pagecontrol point as a uiimage, I use the xcode5.2 debugging found that Pagecontrol
Lauchscreen.xib is used to support iOS8, not iOS7.With Launchimage, iOS7 and iOS8 are compatible.Because IOS8 will also be called LaunchScreen.xib , so my practice is to delete it directly. This is the file:Then, in the Images.xcassets create aLaunchImageRequired in the project properties, launch Images Source set toLaunchImageThe following size images are required:
1242x2208 for iphone6+, or 1080x1920, or retina HD 5.5
750x1334 for IPhone6, retina HD 4.7
640x1136 for 4-inch screen (
The new iOS Project splash screen defaults to Launchscreen.xibIf you want to implement a picture as a startup page, such asIf it starts, clear the project, please.is the start page to stay for a while only in appdelegate-(BOOL) Application: (UIApplication *) application didfinishlaunchingwithoptions: (nsdictionary*) launchOptions {Override point for customization after application launch.[Nsthread sleepfortimeinterval:3.0];//set Start Page timereturn
"In iOS development, animations are cheap"First, the end-to-end animationcode example: Beginanimations indicates that subsequent code will "participate in" the animation [UIView beginanimations:nil context:nil];//Set the duration of the animation [UIView SETANIMATIONDURATION:2.0]; Self.headImageView.bounds = rect; Commitanimations, commits and generates animations for all animations after beginanimation [UIView commitanimations
Step1
1. Click Image.xcassets to go to image management, then right click, pop Up "New Launch image"
2. The right-hand tick allows you to choose whether you want to support ipad, crossbar, vertical screen, and the lower version of iOS. I chose Ios8.0,ios7.0,ios6 this way. No support.
Step2Drag the specified size picture from your file into the fixed position.
System
Size
Resolution
iOS8
R
IOS statusBarStyle settings, iosstatusbarstyle
The View controller-based status bar appearance attribute is available in the info. plist file of the project.
When set to NO, use [UIApplication sharedApplication]. statusBarStyle = UIStatusBarStyleLightContent; To set the overall statusBar style, which cannot be modified in the program.
When set to YES
-(UIStatusBarStyle) preferredStatusBarStyle
{
Retur
IOS Development Study Notes-(2) keyboard control, keyboard type settings, alert dialog box
1. Disable the keyboard and discard the first responder. There are two solutions:
① Bind the event with the Did End on Exit in the text box
② UIControl on Touch events all operate sender's resignFirstResponder
# Import
@ Interface ViewController: UIViewController @ property (weak, nonatomic) IBOutlet UITextField
How to Set and use the color and font size of the title and the default TabBar in iOS settings navigation, iostabbar
Step 1:
// Add a field in info. plist: view controller-base status bar to NO;// Navigation color[[UINavigationBar appearance] setBarTintColor: [UIColor XXXX];[[UITableViewCell appearance] setBackgroundColor: [UIColor XXXX];// Set the status bar (signal area) to white[[UIApplication sharedAppl
Ideas are important!Mainly write down my implementation of the specific ideas, the effect: first, the cell to the left, when the deletion of the top button, then we can design a two-layer control on the cell, the first layer is you want to add the deletion of the top button, put these buttons on the right side of the cell and the second layer is Put a uiview the size of the UIView is the same as the size of the cell and then add some controls to the UIView to display the data. Question: Does the
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