objective-c - iOS- UIButton按住后松开不执行UIControlEventTouchUpInside

Answer 1

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UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
[button setFrame:CGRectMake(0, 0, 200, 80)];
[button setTitle:@"button" forState:UIControlStateNormal];
[button addTarget:self action:@selector(buttonAction:forEvent:) forControlEvents:UIControlEventAllTouchEvents];
[self.view addSubview:button];
    
- (void)buttonAction:(id)sender forEvent:(UIEvent *)event{
    UITouchPhase phase = event.allTouches.anyObject.phase;
    if (phase == UITouchPhaseBegan) {
        NSLog(@"press");
    }
    else if(phase == UITouchPhaseEnded){
        NSLog(@"release");
    }
}