iphone - 在 "{" token 之前预期为 ")"

Question

我有个小问题。我正在对我编写的 iOS 程序进行一些更改，但遇到了问题。我经常收到“Expected '{' before ')' token”警告，但我的编码技能不够好，无法找到问题所在。一点帮助将不胜感激。

#import "Search.h"
#import "RootViewController.h"

    //button
    - (IBAction)buttonPressed)sender{
    RootViewController *newview = [[RootViewController alloc] initWithNibName:@"RootViewController" bundle:nil];
    [UIView beginAnimations:nil context:NULL]; 
    [UIView setAnimationDuration:0.5]; 
    [UIView setAnimationTransition:UIViewAnimationTransitionFl ipFromRight forView:self.view cache:YES]; 
    [self.view addSubview:newview.view]; 
    [UIView commitAnimations];

    @implementation Search
@end

Answer 1

正确的语法是

#import "Search.h"
#import "RootViewController.h"


  @implementation Search
//button
 - (IBAction)buttonPressed:(id)sender {
        RootViewController *newview = [[RootViewController alloc]  initWithNibName:@"RootViewController" bundle:nil];
        [UIView beginAnimations:nil context:NULL]; 
        [UIView setAnimationDuration:0.5]; 
        [UIView setAnimationTransition:UIViewAnimationTransitionFlipFromRight forView:self.view cache:YES]; 
        [self.view addSubview:newview.view]; 
        [UIView commitAnimations];
    }

@end