有没有办法打印SEL动作？

Question

例如,我想跟踪发送到我的canPeformAction的动作,并且它们太多,无法在每次出现时在调试器中显示"悬停".因此,我想跟踪日志并在测试周期后检查它.

- (BOOL)canPerformAction:(SEL)action withSender:(id)sender {
    NSLog(@"%s: sender=%@", __FUNCTION__, sender, action);
}

Answer 1

你要

NSLog(@"%s: sender=%@, selector=%s", __FUNCTION__, sender,sel_getName(action));

Answer 2

使用NSStringFromSelector轻松获取Selector的可打印名称.

NSStringFromSelector(action)

NSString * NSStringFromSelector ( SEL aSelector );

返回给定选择器的字符串表示形式.

- (BOOL)canPerformAction:(SEL)action withSender:(id)sender {
    NSLog(@"Action: %@", NSStringFromSelector(action));
}