UISegmentedControl - 最後段不容易選擇

Question

所以我使用的是UISegmented所示的控制

最後一段「5」是非常努力，擊中我的手指。我從模擬器使用遊標注意到，只有大約一半的段會響應。任何一半的權利基本上是一個死區。我不確定是什麼導致了這個問題，因爲我已經將這個分段控件移到頂端，它仍然執行相同的操作。但是，如果我將分段控件移動到屏幕中心，則5段整個表面區域會響應觸摸事件...

我不知道如何解決此問題。

Answer 1

要了解可能重疊的代碼，添加此UIView的類別：

@interface UIView (Dumper_Private) 

+ (void)appendView:(UIView *)v toStr:(NSMutableString *)str; 

@end 

@implementation UIView (Dumper_Private) 

+ (void)appendView:(UIView *)a toStr:(NSMutableString *)str 
{ 
    [str appendFormat:@" %@: frame=%@ bounds=%@ layerFrame=%@ tag=%d userInteraction=%d alpha=%f hidden=%d\n", 
     NSStringFromClass([a class]), 
     NSStringFromCGRect(a.frame), 
     NSStringFromCGRect(a.bounds), 
     NSStringFromCGRect(a.layer.frame), 
     a.tag, 
     a.userInteractionEnabled, 
     a.alpha, 
     a.isHidden 
     ]; 
} 

@end 

@implementation UIView (Dumper) 

+ (void)dumpSuperviews:(UIView *)v msg:(NSString *)msg 
{ 
    NSMutableString *str = [NSMutableString stringWithCapacity:256]; 

    while(v) { 
     [self appendView:v toStr:str]; 
     v = v.superview; 
    } 
    [str appendString:@"\n"]; 

    NSLog(@"%@:\n%@", msg, str); 
} 

+ (void)dumpSubviews:(UIView *)v msg:(NSString *)msg 
{ 
    NSMutableString *str = [NSMutableString stringWithCapacity:256]; 

    if(v) [self appendView:v toStr:str]; 
    for(UIView *a in v.subviews) { 
     [self appendView:a toStr:str]; 
    } 
    [str appendString:@"\n"]; 

    NSLog(@"%@:\n%@", msg, str); 
} 

@end 

，並呼籲[UIView dumpSuperviews:theSegmentedControl];