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我一直在四处寻找，还没有想出太多。说有一个预期的标识符错误。这是唯一的错误。任何帮助将不胜感激。

我只是有点困惑，我不确定是不是因为我一直在看太久，所以它一直给我解析错误。

这是我的.h

#import <UIKit/UIKit.h>
#import "AMRotaryProtocol.h"

@interface AMRotaryWheel : UIControl
-(void)drawWheel;
@property (weak) id <AMRotaryProtocol> delegate;
@property (nonatomic, strong) UIView *container;
@property int numberOfSections;

- (id) initWithFrame:(CGRect)frame andDelegate:(id)del withSections:(int)sectionsNumber;

@end

和.m

#import <QuartzCore/QuartzCore.h>
#import "AMRotaryWheel.h"

@interface AMRotaryWheel()

- (void) drawWheel
{
    // 1
    container = [[UIView alloc] initWithFrame:self.frame];
    // 2
    CGFloat angleSize = 2*M_PI/numberOfSections;
    // 3
    for (int i = 0; i < numberOfSections; i++) {
        // 4
        UILabel *im = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, 100, 40)];
        im.backgroundColor = [UIColor redColor];
        im.text = [NSString stringWithFormat:@"%i", i];
        im.layer.anchorPoint = CGPointMake(1.0f, 0.5f);
        // 5
        im.layer.position = CGPointMake(container.bounds.size.width/2.0,
                                        container.bounds.size.height/2.0);
        im.transform = CGAffineTransformMakeRotation(angleSize * i);
        im.tag = i;
        // 6
        [container addSubview:im];
    }
    // 7
    container.userInteractionEnabled = NO;
    [self addSubview:container];
}

@end

@implementation AMRotaryWheel

@synthesize delegate, container, numberOfSections;

- (id) initWithFrame:(CGRect)frame andDelegate:(id)del withSections:(int)sectionsNumber {
// 1 - Call super init
if ((self = [super initWithFrame:frame])) {
    // 2 - Set properties
    self.numberOfSections = sectionsNumber;
    self.delegate = del;
    // 3 - Draw wheel
    [self drawWheel];
}
return self;
}

- (void) drawWheel {

}

@end

谢谢大家的帮助。

4

1 回答 1

3

您的@interface( .h) 文件中有方法主体，而头文件中应该只有方法原型。方法体应位于相应的@implementation( .m) 文件中。

所以AMRotaryWheel.h你应该有：

@interface AMRotaryWheel()
-(void) drawWheel;
@end

你AMRotaryWheel.m应该有：

@implementation AMRotaryWheel
-(void) drawWheel {
  // method body here
}
@end
于 2013-06-09T22:26:20.353 回答