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我已自定義視圖這樣的:爲什麼我定製在細胞中的細胞click事件的按鈕無法接收
#import "LWView.h"
@implementation LWView
- (instancetype)initWithFrame:(CGRect)frame {
if (self = [super initWithFrame:CGRectMake(frame.origin.x, frame.origin.y , frame.size.width, frame.size.height)]) {
self.backgroundColor = [UIColor lightGrayColor];
UIButton *btn = [UIButton buttonWithType:UIButtonTypeCustom];
btn.frame = CGRectMake(0, 0, 40, 40);
[btn setTitle:@"點我" forState:UIControlStateNormal];
[btn addTarget:nil action:@selector(click) forControlEvents:UIControlEventTouchUpInside];
btn.backgroundColor = [UIColor redColor];
[self addSubview:btn];
}
return self;
}
@end
是的,我設定的目標爲nil因爲我想這個觀點加入到我的自定義單元格,我想我的手機來實現這個SEL,這是自定義單元代碼:
#import "LWTableViewCell.h"
#import "LWView.h"
@implementation LWTableViewCell
- (instancetype)init {
if (self = [super init]) {
LWView *lwView = [[LWView alloc]initWithFrame:CGRectMake(0, 0, 44, 44)];
[self.contentView addSubview:lwView];
}
return self;
}
- (void)setSelected:(BOOL)selected animated:(BOOL)animated {
[super setSelected:selected animated:animated];
}
- (void)click {
NSLog(@"U click me!");
}
@end
我實現了在tableview中使用自定義單元格的,但是當我點擊這個按鈕時,SEL在細胞不叫,夥計們,我該怎麼辦?
是的,你說得對,我認爲目標是零,系統會按照響應鏈找到下一級的下一級還沒有達到SEL,所以我在SEL的單元中實現了。但很奇怪,並沒有打電話到這裏。順便說一句,如果自定義視圖和控制器和委託實現這個SEL,系統會調用,我測試過 –