If ios writes a View with an animation prompt, it can guide user behavior.
First:
This UIView can be written as follows:
-(id)initWithFrame:(CGRect)frame backImage:(UIImage*)image msgStr:(NSString*)txt txtColor:(UIColor*)color{ self = [super initWithFrame:frame]; if (self) { self.backgroundColor = [UIColor clearColor]; _paopaoImage = image; _txt = txt; _color = color; } return self;}// Only override drawRect: if you perform custom drawing.// An empty implementation adversely affects performance during animation.- (void)drawRect:(CGRect)rect{ CGContextRef context = UIGraphicsGetCurrentContext(); CGRect textRc = rect; [_paopaoImage drawInRect:rect]; CGFontRef contextFont = CGFontCreateWithFontName((CFStringRef)[UIFont systemFontOfSize:14].fontName); CFRelease(contextFont); CGContextSetFontSize(context, 14.0); CGContextSetFillColorWithColor(context, _color.CGColor); textRc.origin.y += 11.0f; [_txt drawInRect:textRc withFont:[UIFont systemFontOfSize:14] lineBreakMode:NSLineBreakByWordWrapping alignment:NSTextAlignmentCenter];}
Then, in the pop-up window:
-(Void) showTipView {CGRect rect = [[HomePageUIManager sharedInstance] region]; PopUpMenu * menu = [[PopUpMenu alloc] initWithFrame: rect backImage: [UIImage imageNamed: @ "change_search_tip.png"] msgStr: @ "open/close panel" txtColor: [CCommon RGBColorFromHexString: @ "# ffffff" alpha: 1.0f]; [self. view addSubview: menu]; CABasicAnimation * jumpAnimation = [CABasicAnimation animationWithKeyPath: @ "transform. translation. y "]; jumpAnimation. fromValue = [NSNumber numberWithFloat: 0.0f]; jumpAnimation. toValue = [NSNumber numberWithFloat: 8.0f]; jumpAnimation. duration = 0.5f; // animation duration jumpAnimation. repeatCount = 10; // Number of animation repetitions jumpAnimation. autoreverses = YES; // whether to automatically repeat [menu. layer addAnimation: jumpAnimation forKey: @ "animateLayer"];}
The code can be downloaded at http://download.csdn.net/detail/baidu_nod/7629687.