You can use code or xib to create; Then set the properties;
@property (nonatomic, assign) CGFloat waveSpeed; // Default as 6
@property (nonatomic, assign) CGFloat waveAmplitude; // Default as 6
@property (nonatomic, strong) UIColor *waveColor; // Default as [UIColor blueColor]
Most importantly, do not forget to call [waterView wave];
When you need to stop the wave,just call [waterView stop];