IOS development and learning # reminder processing # (2) Response Action Form

IOS development and learning # reminder processing # (2) Response Action Form

In the action form, we use a lot of buttons for implementation. Here we use the actionSheet: clickedButtonAtIndex: method implementation in the UIActionsheetDelegate Protocol. Its syntax is as follows:

-(Void) actionSheet :( UIActionSheet *) actionSheet clickedButtonAtIndex :( NSInteger) buttonIndex;

(UIActionSheet *) The actionSheet is used to specify the buttons contained in the Action form, and the (NSInteger) buttonIndex is used to specify the index of the clicked button.

The core code is as follows:

ViewController. h

#import 
 
  @interface ViewController : UIViewController
  
   {    IBOutlet UITextView *tv;    IBOutlet UILabel *l;}- (IBAction)aa:(id)sender;@end
  
 

ViewController. m

-(IBAction) aa :( id) sender {UIActionSheet * ac = [[UIActionSheet alloc] initWithTitle: @ "ate: self cancelButtonTitle: @" OK "destructiveButtonTitle: @ "Chinese" otherButtonTitles: @ "English", @ "Japanese", nil]; [ac showInView: self. view];}-(void) actionSheet :( UIActionSheet *) actionSheet clickedButtonAtIndex :( NSInteger) buttonIndex {NSString * t = [actionSheet buttonTitleAtIndex: buttonIndex]; if ([t is%tostring: @ "Chinese"]) {TV. text = @ "Once upon a time there was a cute girl who liked her, but she liked her most. She gave her what she wanted. Once, my grandmother gave the little girl a little red hat made of velvet. It was just right on her head. Since then, the girl is no longer willing to wear any other hats, so everyone calls her "Little Red Hat ". "; L. text = @ "";} else if ([t isEqualToString: @ "English"]) {TV. text = @ "Once there was a little girl, she always wore a red hat, so everybody called her the Little Red Hat. one day little red hat's mother said to her, "Little red hat, your grandma is ill, please go and see her, give her these cakes. remember you must walk along the main road. "" Yes, mum I remember. "She took the cakes and made her way t O her grandma's. she has ED and has ed. suddenly she came into ss a big gray wolf. "; l. text = @ "Litle Red Riding Hood";} else if ([t isEqualToString: @ "Japanese"]) {TV. text = @ "() (にほ) に. せん. Near (near) near (near. Leiyun (zookeeper) has been a massive number of Chinese users in the western region. The family of three members has been killed. She was the only girl in the United States. "; L. text = @" maid )";}}