我已经整理了一个简单的引用生成器,将引号存储在一个数组中。以下是引用视图控制器接口和实现文件:
ViewController.h
#import <UIKit/UIKit.h>
@interface ViewController : UIViewController
@property(nonatomic, retain)NSArray *myQuotes;
@property(nonatomic, retain)NSMutableArray *movieQuotes;
@property (nonatomic, retain) IBOutlet UITextView *quote_text;
-(IBAction)quote_btn_touch:(id)sender;
@end
ViewController.m
#import "ViewController.h"
@interface ViewController ()
@end
@implementation ViewController
@synthesize myQuotes;
@synthesize movieQuotes;
@synthesize quote_text;
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
self.myQuotes = [NSArray arrayWithObjects:
@"Live and let live",
@"Don't cry over spilt milk",
@"Always look on the bright side of life",
@"Nobody's perfect",
@"Can't see the woods for the trees",
@"Better to have loved and lost than not loved at all",
@"The early bird catches the worm",
@"As slow as a wet week",
nil];
quote_text = nil;
}
- (void)viewDidUnload
{
[super viewDidUnload];
// Release any retained subviews of the main view.
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
return (interfaceOrientation != UIInterfaceOrientationPortraitUpsideDown);
}
-(IBAction)quote_btn_touch:(id)sender {
// 1 - Get number of rows in array
int array_tot = [self.myQuotes count];
// 2 - Get random index
int index = (arc4random() % array_tot);
// 3 - Get the quote string for the index
NSString *my_quote = [self.myQuotes objectAtIndex:index];
// 4 - Display the quote in the text view
self.quote_text.text = [NSString stringWithFormat:@"Quote:\n\n%@", my_quote];
}
@end
在xib文件中,我分别使用quote_text和quote_btn_touch将文本视图和按钮连接到文件所有者。
麻烦的是,当我点击按钮时,没有任何反应。知道我错过了什么吗?
提前致谢!
答案 0 :(得分:0)
在viewDidLoad上将您的设置引用文本设置为nil。如果你摆脱了你的代码应该工作,只要你正确地将按钮绑定到viewcontroller函数
quote_text = nil;