iOS xcode 按钮未链接。

Question

我的主 Storyboard上有一个按钮。我很确定它已正确链接，但是当我运行模拟器并点击按钮时，它什么也没做。我缺少什么来获取打开 Safari 的按钮？

Viewcontroller.h

#import <UIKit/UIKit.h>

@interface testViewController : UIViewController
- (IBAction)openSafari:(id)sender;

@end

Viewcontroller.m

#import "testViewController.h"

@interface testViewController ()

@end

@implementation testViewController

- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
}

- (void)viewDidUnload
{
    [super viewDidUnload];
    // Release any retained subviews of the main view.
}

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
return (interfaceOrientation != UIInterfaceOrientationPortraitUpsideDown);
}

- (IBAction)openSafari:(id)sender {
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"www.google.com"]];
}
@end

Answer 1

URL 需要方法和地址，因此请尝试 @"http://www.google.com"。要证明您的操作是否正确连接，请从该方法打印一条日志消息(或使用断点)。