@interface KAIBattery : UIView @property (nonatomic, strong) NSMutableArray *displayingDevices; @property (nonatomic, assign) NSInteger number; @property (nonatomic, strong) NSLayoutConstraint *heightConstraint; @property (nonatomic, assign) BOOL isUpdating; +(KAIBattery *)sharedInstance; -(instancetype)init; -(void)updateBattery; @end