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我有這個我viewcontroller.miPhone搖事件不起作用
- (void)motionEnded:(UIEventSubtype)motion withEvent:(UIEvent *)event {
if (event.type == UIEventSubtypeMotionShake) {
NSLog(@"shake shake shake");
}
}
- (void)viewDidLoad
{
[self performSelector:@selector(becomeFirstResponder) withObject:nil afterDelay:0.3];
}
裏面可是當我動搖我的手機沒有任何反應。爲什麼?