如何將值從UIViewController傳遞給UIView？

我已經creted一個UIView子類：如何將值從UIViewController傳遞給UIView？

@interface GraphClass : UIView 
{ 
    NSString *str; 
}

，我已經指派GraphClass：給名爲UIViewController類的觀點：

@interface GraphViewController : UIViewController 
{ 


}

現在我想傳遞的NSString *量，值從另一個

@interface MonthsListController : UIViewController 
{ 
} 
in viewDIdLoad 

- (void)viewDidLoad 
{ 
GraphClass *graph = [[GraphClass alloc]init]; 

graph.str = @"abc";

但UIViewController類我得到NULL值，如果我打印GraphClass

STR值

-(void)drawRect:(CGRect)rect 
{ 
    NSLog(@"Amount is = %@",str);//NULL VAlue :(
} 
}

來源

2012-02-13 Shreedhar

僅有[搜索] （https://www.google.com/search?q=%40property+and+%40synthesize）for @ @ property' and'@ synthesize' ke ywords。 – 2012-02-13 12:54:02

有很多方法可以做到這一點。嘗試在'AppDelegate'中使用'str'，這樣就可以輕鬆保存或打印值。讓我知道它是否有幫助。 – Illep 2012-02-13 12:57:30

是啊阿迪爾我已經設置屬性也:(:(＃）（＃）（＃）（＃）（＃）（＃）（＃）（＃）（＃）（＃）（＃）或代碼：（ – Shreedhar 2012-02-13 12:57:53

MonthsListController.h

#import GraphClass.h 

GraphClass *graph; 

@property(nonstatic,retain)GraphClass *graph;

MonthsListController.m

@synthesis graph;

viewDidLoad中

self.graph= [[GraphClass alloc]init]; 
[self.graph str:@"xx"];

- （無效）的drawRect：（的CGRect）RECT

NSLog(@"%@",graph.str);

來源

2012-02-13 13:10:34 Illep

沒有工作 – Shreedhar 2012-02-13 13:12:16

#import "GraphClass.h"

//在UIViewController類

GraphClass *graph = [[GraphClass alloc] init]; 

graph.recStr=Amount; 

[self.view addSubview:graph];

//在GraphClass

@interface GraphClass : UIView 
{ 
    NSString *recStr; 
} 

@propery (nonatomic,strong) NSString *recStr;

來源

2015-08-19 10:31:39

如何將值從UIViewController傳遞給UIView？

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