Ios Objective C-在视图控制器的UIView子类上设置标签属性

在我的应用程序中，我在Nib文件中设计了一个自定义谷歌地图pin标记。pin标记的一部分将显示估计到达时间

下面是我加载Nib并尝试设置自定义时间的方式：

self.markerPinFromNib = [[[NSBundle mainBundle] loadNibNamed:@"PinWithTimeView" owner:self options:nil] firstObject];
self.markerPinFromNib.estTime.text = @"20";

运行此操作时，我得到一个错误：

-[UIView estTime]: unrecognized selector sent to instance

PinWithTimeView.h

#import <UIKit/UIKit.h>
@interface PinWithTimeView : UIView

@property (nonatomic, weak) IBOutlet UIImageView *rotateCircle;
@property (nonatomic, strong) IBOutlet UILabel *estTime;

@end

@interface PinWithTimeView : UIView

@property (nonatomic, weak) IBOutlet UIImageView *rotateCircle;
@property (nonatomic, weak) IBOutlet UILabel *estTime;
-(id)initWithEstTime:(NSString*)time;
@end

#导入
@接口PinWithTimeView:UIView
@属性（非原子，弱）IBUIImageView*旋转圆；
@属性（非原子，强）IBUILabel*estTime；
@结束

---

有人能指出我做错了什么吗？

您应该将实例从nib转换为有效的

PinWithTimeView

。像这样：

((PinWithTimeView *)self.markerPinFromNib).estTime.text = @"20";

---

因为

loadNibNamed:owner:options:

将返回一个数组include

UIView

实例。

您应该将实例从nib转换为有效的

PinWithTimeView

。像这样：

((PinWithTimeView *)self.markerPinFromNib).estTime.text = @"20";

---

因为

loadNibNamed:owner:options:

将返回一个数组include

UIView

实例。

在您的PinWithTimeView.h中

#import <UIKit/UIKit.h>
@interface PinWithTimeView : UIView

@property (nonatomic, weak) IBOutlet UIImageView *rotateCircle;
@property (nonatomic, strong) IBOutlet UILabel *estTime;

@end

@interface PinWithTimeView : UIView

@property (nonatomic, weak) IBOutlet UIImageView *rotateCircle;
@property (nonatomic, weak) IBOutlet UILabel *estTime;
-(id)initWithEstTime:(NSString*)time;
@end

在您的PinWithTimeView.m中

-(id)initWithEstTime:(NSString*)time{
    self = [super init];
    if (self) {
        self = [[[NSBundle mainBundle] loadNibNamed:@"PinWithTimeView" owner:self options:nil] objectAtIndex:0];
        self.estTime.text = time;

    }
    return self;
}

在控制器中

self.markerPinFromNib = [[PinWithTimeView alloc]initWithEstTime:@"20"];

---

在您的PinWithTimeView.h中

#import <UIKit/UIKit.h>
@interface PinWithTimeView : UIView

@property (nonatomic, weak) IBOutlet UIImageView *rotateCircle;
@property (nonatomic, strong) IBOutlet UILabel *estTime;

@end

@interface PinWithTimeView : UIView

@property (nonatomic, weak) IBOutlet UIImageView *rotateCircle;
@property (nonatomic, weak) IBOutlet UILabel *estTime;
-(id)initWithEstTime:(NSString*)time;
@end

在您的PinWithTimeView.m中

-(id)initWithEstTime:(NSString*)time{
    self = [super init];
    if (self) {
        self = [[[NSBundle mainBundle] loadNibNamed:@"PinWithTimeView" owner:self options:nil] objectAtIndex:0];
        self.estTime.text = time;

    }
    return self;
}

在控制器中

self.markerPinFromNib = [[PinWithTimeView alloc]initWithEstTime:@"20"];

---

仍在获取“[UIView estTime]：发送到实例的无法识别的选择器”。。。知道为什么吗？你能分享一下代码崩溃的那一行吗。请使用断点进行调试，仍将获取“[UIView estTime]：发送到实例的无法识别的选择器”。。。知道为什么吗？你能分享一下代码崩溃的那一行吗。请使用断点进行调试