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我一直在尋找網絡上的所有答案這一個!希望你們中的一個能幫助我。隨機數字選擇一個圖像Xcode iPhone
到目前爲止,我有一個按鈕,它會在標籤中產生1到6之間的隨機數。
那我要的圖片,這取決於是在標籤什麼NR出現。
例如:如果產生1號,我想img1.png出現在一個UIImageView 我想也許如果函數挑選的圖片。(?)?
對不好格式化。
這裏是.h文件:
#import <UIKit/UIKit.h>
@interface xxxViewController : UIViewController
{
IBOutlet UILabel *label;
int randomNumber;
}
-(IBAction)randomize;
@end
...這裏是.m文件:
#import "xxxViewController.h"
@implementation xxxViewController
-(IBAction)randomize
{
int randomNumber = 1+ arc4random() %(6);
label .text = [NSString stringWithFormat:@"%d",randomNumber];
}
// Implement viewDidLoad to do additional setup after loading the view, typically from a nib.
- (void)viewDidLoad {
[super viewDidLoad];
int randomNumber = 1+ arc4random() %(6);
label .text = [NSString stringWithFormat:@"%d",randomNumber];
}
- (void)didReceiveMemoryWarning {
// Releases the view if it doesn't have a superview.
[super didReceiveMemoryWarning];
// Release any cached data, images, etc that aren't in use.
}
- (void)viewDidUnload {
// Release any retained subviews of the main view.
// e.g. self.myOutlet = nil;
}
- (void)dealloc {
[super dealloc];
}
@end
我明白你在說什麼,但我對Objective C有點新鮮感。你能否在代碼中實現你的第一個選擇?那太好了! – user272007