保留和加载数据 Save and load data（实例）

保存和加载数据 Save and load data（实例）

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In this tutorial i will be showing you how to save and load data in your?applications

Features:

1 Label1 Textfield3 Buttons

Saving and loading data in apps is a major component for games such as saving?high scores or loading progress or just generally enabling the user to save and load the data they created within you app?

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-(IBAction)save{ NSString *savedstring = label.text; NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults]; [defaults setObject:savedstring forKey:@"savedstring"]; [defaults synchronize];}-(IBAction)load{ NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults]; NSString *loadstring = [defaults objectForKey:@"savedstring"]; [label setText:loadstring];}-(IBAction)settext{ label.text = textfield.text;}?

视频：?http://www.youtube.com/watch?feature=player_embedded&v=I0dP-sNbv94

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