这是我的老问题链接
我之前问过一个问题,但是我把答案放在我的代码中它可以编译没有错误
但是当我点击开关时,程序崩溃了
我只想点击开关,而不是返回我点击的那一行
这是我的代码
首先我创建一个LightTableViewController.h/.m
比我创造LightCell0.h/.m
在LightCell0.h
@interface LightCell0 : UITableViewCell {
UILabel *lightLocation;
UIImageView *lightImageView;
UISwitch *lightSwitch;
}
@property(nonatomic,retain) UILabel *lightLocation;
@property(nonatomic,retain) UIImageView *lightImageView;
@property(nonatomic,retain) UISwitch *lightSwitch;
- (void)switchlightswitch:(id)sender;
我需要每个单元格都是图像,文本标签,在里面切换
在LightCell.m
- (id)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier {
if ((self = [super initWithStyle:style reuseIdentifier:reuseIdentifier])) {
lightLocation = [[UILabel alloc]init];
lightLocation.textAlignment = UITextAlignmentLeft;
lightLocation.font = [UIFont boldSystemFontOfSize:20];
lightLocation.backgroundColor = [UIColor blackColor];
lightLocation.textColor =[UIColor whiteColor];
lightImageView = [[UIImageView alloc]init];
lightSwitch = [[UISwitch alloc]init];
[self.contentView addSubview:lightLocation];
[self.contentView addSubview:lightImageView];
[self.contentView addSubview:lightSwitch];
[lightSwitch addTarget:self action:@selector(switchlightswitch:) forControlEvents:UIControlEventValueChanged];
// Initialization code
}
return self;
}
- (void)switchlightswitch:(id)sender{
if (lightSwitch.on){
lightImageView.image = [UIImage imageNamed:@"lightOn.png"];
}
else {
lightImageView.image = [UIImage imageNamed:@"lightOff.png"];
} }
- (void)layoutSubviews {
[super layoutSubviews];
CGRect contentRect = self.contentView.bounds;
CGFloat boundsX = contentRect.origin.x;
CGRect frame;
frame = CGRectMake(boundsX+10 ,0, 44, 44);
lightImageView.frame = frame;
frame = CGRectMake(boundsX+60 ,3, 150, 44);
lightLocation.frame = frame;
frame = CGRectMake(boundsX+220, 10,0,0);
lightSwitch.frame = frame ;
}
到目前为止,当我改变开关状态时,程序可以响应,它也会改变图像。
但是如果我把这段代码放进去,我可以编译,如果我触摸任何开关就会崩溃
[lightSwitch addTarget:self action:@selector(switchToggled:) forControlEvents:UIControlEventValueChanged]
;
并给出一个空白
- (void)switchToggled:(id)sender {
UISwitch *theSwitch = (UISwitch *)sender;
UITableViewCell *cell = (UITableViewCell *)theSwitch.superview;
UITableView *tableView = (UITableView *)cell.superview;
NSIndexPath *indexPath = [tableView indexPathForCell:cell];
if(theSwitch.on) {
NSLog(@"You Switch On the NodeID:%i ",indexPath.row);
}
else {
NSLog(@"You Switch Off the NodeID:%i ",indexPath.row);
}
}
崩溃消息是“ Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** -[LightCell0 indexPathForCell:]: unrecognized selector sent to instance
”
有谁知道我的代码发生了什么?