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iOS学习笔记(7):动画

内容:按钮移动,向下,隐藏,旋转,时长

- (IBAction)btnRight:(UIButton *)sender {
    [UIView beginAnimations:@"moveRigtt" context:nil];
    sender.center=CGPointMake(63, 200);
    [UIView commitAnimations];
}

- (IBAction)btnHide:(UIButton *)sender {
    [UIView beginAnimations:@"hide" context:nil];
    [UIView setAnimationDuration:3];
    sender.alpha=0;
    [UIView commitAnimations];
}

- (IBAction)btnRotate:(UIButton *)sender {
    [UIView beginAnimations:@"rotate" context:nil];
    [UIView setAnimationDuration:2];
    [UIView setAnimationRepeatCount:2];
    sender.transform=CGAffineTransformRotate(sender.transform,M_PI_2);

    [UIView commitAnimations];
}

 

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