IOS Development Guide Chapter 12th application settings

1 overview

The items in the setup do not change frequently in the application, which determines the basic characteristics and behavior of the application.

Configuration is a functional block that is developed within the application and is part of the application, and the project is constantly changing.

2 Application Provisioning Package

The Settings bundle is a package file that contains a description of the desired items in the Setup interface using the localized sub-settings of the photo text and other content. Open through the Finder.

The Root.plist file describes the project information that is set in the root settings interface.

The En.lproj folder and the Root.strings file are localization-related and used to set the interface information.

Created: Ios-resource-settings Bundle

3 Setting Item Types

Xcode identifier-----Notepad key to remove the decoy: Right-click-show Raw keys/values

1) Text field

Type-pstextfieldspecifier Title-name

2) switch

Type-pstoggleswitchspecifier title of the Title-project

3) Sliding block

Type-pssliderspecifier

Add a maximum picture and a minimum picture to the Settings item: Copy the picture to the app package, in PNG format.

4) List of values

Provide a list of multiple choices for the user

Type-psmultivaluespecifier title-Item Title titles string array-option caption values-option value

5) Sub-interface

You can navigate to the next level Setup interface

Type-pschildpanespecifier file-Setting the. plist file name for the sub-interface

4 Read settings

Nsuserdefaults *deaults=[nsuserdefaults Standarduserdefaults];

Value method: Xxxforkey: Remove XXX value by key

-(Ibaction) GetData: (ID) Sender {nsuserdefaults* Defaults =[Nsuserdefaults Standarduserdefaults]; Self.username.text= [Defaults Stringforkey:@"name_preference"]; Self.password.text= [Defaults Stringforkey:@"password_preference"]; if([Defaults Boolforkey:@"enabled_preference"]) {Self.clearCache.text=@"YES"; } Else{Self.clearCache.text=@"NO"; } Self.flowmeter.text= [NSString stringWithFormat:@"%.2FGB", [Defaults Doubleforkey:@"slider_preference"]]; Self.serverName.text= [Defaults Stringforkey:@"multivaule_preference"]; if([Defaults Boolforkey:@"sound_enabled_preference"]) {Self.notiSound.text=@"YES"; } Else{Self.notiSound.text=@"NO"; }            if([Defaults Boolforkey:@"vibrate_enabled_preference"]) {Self.notiVibrate.text=@"YES"; } Else{Self.notiVibrate.text=@"NO"; }}

IOS Development Guide Chapter 12th application settings