MiMO_iOS/MiMoLive/Classes/Live/View/LiveGiftShowView/LiveGiftShowNumberView.m

//
//  LiveGiftShowNumberView.m
//  LiveSendGift
//
//  Created by Jonhory on 2016/11/11.
//  Copyright © 2016年 com.wujh. All rights reserved.
//

#import "LiveGiftShowNumberView.h"
#import "Masonry.h"
#import "MSNumberScrollAnimatedView.h"

@interface LiveGiftShowNumberView ()

@property (nonatomic, strong) MSNumberScrollAnimatedView *numLab;

@property (nonatomic ,assign) NSInteger lastNumber;/**< 最后显示的数字 */
@property (nonatomic ,assign) NSInteger oldNumber;/**< 最后显示的数字 */

@end

@implementation LiveGiftShowNumberView

@synthesize number = _number;

- (void)setNumber:(NSInteger)number{
    self.lastNumber = number;
}

- (NSInteger)number{
    _number = self.lastNumber ;
    self.lastNumber += 1;
    return _number;
}

- (NSInteger)mo_AddNumWith:(NSInteger)num{
    self.oldNumber = _number;
    _number = self.lastNumber + num ;
    self.lastNumber = _number;
    return _number;
}

/**
 获取显示的数字
 
 @return 显示的数字
 */
- (NSInteger)getLastNumber{
    return self.lastNumber - 1;
}

/**
 改变数字显示
 
 @param numberStr 显示的数字
 */
- (void)changeNumber:(NSInteger)number{
    if (number <= 0) {
        return;
    }
    
    if(self.oldNumber == 0){
        self.oldNumber = 1;
    }
    
    NSString *numberString = [NSString stringWithFormat:@"%zd", number];
    [self.numLab mas_updateConstraints:^(MASConstraintMaker *make) {
        make.width.mas_equalTo(numberString.length * 20);
    }];
    
    [self.numLab setNeedsLayout];
    [self.numLab layoutIfNeeded];
        
    if((number - self.oldNumber) < 6){//不需要滚动动画
        [self.numLab setNumber:@(number)];
        [self.numLab stopAnimation];
    } else{//需要滚动动画
        //滚动动画需要在外面执行完缩放动画完后才去执行
        dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.3 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
            [self.numLab setNumber:@(number)];
            [self.numLab startAnimation];
        });
    }
    
    [self layoutIfNeeded];
    
}

- (MSNumberScrollAnimatedView *)numLab {
    if (!_numLab) {
        _numLab = [[MSNumberScrollAnimatedView alloc] initWithVipType:self.vipType];
        _numLab.isAscending = YES;
        [self addSubview:_numLab];
        [_numLab mas_makeConstraints:^(MASConstraintMaker *make) {
            make.centerY.right.mas_equalTo(0);
            make.height.mas_equalTo(23);
            make.width.mas_equalTo(20);
        }];
    }
    return _numLab;
}

@end