我想从我的 appDelegate 调用 viewController 中的函数,但使用以下代码,它不会被调用。我做错了什么?
AppDelegate.h:
#import <UIKit/UIKit.h>
#import "DetailsToTransfer.h"
@class AccountDetailTransferViewController;
@interface AccountDetailTransferAppDelegate : NSObject <UIApplicationDelegate> {
DetailsToTransfer *objDetailsToTransfer;
}
@property (nonatomic, retain) DetailsToTransfer *objDetailsToTransfer;
@property (nonatomic, retain) IBOutlet UIWindow *window;
@property (nonatomic, retain) IBOutlet AccountDetailTransferViewController *viewController;
-(void)sendToTransferScreen:(NSArray *)detailsArray;
@end
AppDelegate.m:
....
-(void)sendToTransferScreen:(NSArray *)detailsArray {
[objDetailsToTransfer setLabels:detailsArray];
objDetailsToTransfer = [[DetailsToTransfer alloc]initWithNibName:@"DetailsToTransfer" bundle:nil];
[self.window addSubview:objDetailsToTransfer.view];
}
DetailsToTransfer.h:
#import <UIKit/UIKit.h>
@interface DetailsToTransfer : UIViewController {
NSArray *accountDetailsArray;
UILabel *nameLabel;
UILabel *accountLabel;
IBOutlet UIButton *btnTransfer;
IBOutlet UIButton *btnBack;
}
@property (nonatomic, retain) NSArray *accountDetailsArray;
@property (nonatomic, retain) IBOutlet UILabel *nameLabel;
@property (nonatomic, retain) IBOutlet UILabel *accountLabel;
-(IBAction)sendDetails;
-(IBAction)goBack;
-(void)setLabels:(NSArray *)array;
@end
DetailsToTransfer.m
....
-(void)setLabels:(NSArray *)array {
NSLog(@"Setting Labels");
self.nameLabel.text = [array objectAtIndex:0];
self.accountLabel.text = [array objectAtIndex:1];
}
....
我想补充一点,所有属性都已合成,并且我正在正确调用 appDelegate 中的方法(我使用 NSLogs 检查)
最佳答案
在 AppDelegate.m 中:
看起来好像您在创建对象之前调用对象的方法。在你分配/初始化你的对象之前,不会有标签来设置文本。
关于iphone - 从 appdelegate 调用 viewcontroller 中的函数,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/7691631/