IOS開發1-動畫 背景漸隱，view上移

[UIView beginAnimations:nil context:nil];  

    //設定動畫持續時間 

    [UIView setAnimationDuration:0.3]; 

    //動畫的內容 

    [mBSelectInfoViewController.innerView setFrame:CGRectMake(202, 64, mBSelectInfoViewController.innerView.frame.size.width, mBSelectInfoViewController.innerView.frame.size.height)];

    [mBSelectInfoViewController.backgroundView setAlpha:0.3];

    //動畫結束 

    [UIView commitAnimations];

 [NSTimer scheduledTimerWithTimeInterval:0.3 target:self selector:@selector(removeUserSelectView:) userInfo:nil repeats:NO];

//定時器

//過了0.3秒會執行   removeUserSelectView:方法