BadgeValueView

BadgeValueView

效果

源码

https://github.com/YouXianMing/UI-Component-Collection 中的 BadgeValueView

//
//  BadgeValueView.h
//  BadgeView
//
//  Created by YouXianMing on 16/5/17.
//  Copyright © 2016年 YouXianMing. All rights reserved.
//

#import <UIKit/UIKit.h>

typedef NS_ENUM(NSUInteger, BadgePosition) {

    BadgePositionCenterLeft,
    BadgePositionCenterRight,

    BadgePositionTopLeft,
    BadgePositionTopRight,

    BadgePositionBottomLeft,
    BadgePositionBottomRight,
};

@interface BadgeValueView : UIView

/**
 *  bedge值
 */
@property (nonatomic, strong) NSString  *badgeValue;

/**
 *  被附着的view
 */
@property (nonatomic, weak)   UIView    *contentView;

/**
 *  敏感字符增长宽度,默认值为4
 */
@property (nonatomic)  CGFloat        sensitiveTextWidth;

/**
 *  敏感增长宽度,默认为10
 */
@property (nonatomic)  CGFloat        sensitiveWidth;

/**
 *  固定高度,默认为20
 */
@property (nonatomic)  CGFloat        fixedHeight;

/**
 *  位置信息,默认为BadgePositionTopRight
 */
@property (nonatomic)  BadgePosition  position;

/**
 *  字体,默认为12
 */
@property (nonatomic, strong) UIFont    *font;

/**
 *  字体颜色,默认为白色
 */
@property (nonatomic, strong) UIColor   *textColor;

/**
 *  bedge颜色,默认为红色
 */
@property (nonatomic, strong) UIColor   *badgeColor;

/**
 *  开始生效
 */
- (void)makeEffect;

/**
 *  设置BadgeValue
 *
 *  @param value    BadgeValue
 *  @param animated 是否执行动画
 */
- (void)setBadgeValue:(NSString *)value animated:(BOOL)animated;

@end

//
//  BadgeValueView.m
//  BadgeView
//
//  Created by YouXianMing on 16/5/17.
//  Copyright © 2016年 YouXianMing. All rights reserved.
//

#import "BadgeValueView.h"
#import "UIView+SetRect.h"

@interface BadgeValueView ()

@property (nonatomic, strong) UILabel *label;

@end

@implementation BadgeValueView

- (instancetype)init {

    if (self = [super init]) {

        self.sensitiveWidth     = ;
        self.fixedHeight        = ;
        self.sensitiveTextWidth = ;
        self.position           = BadgePositionTopRight;
        self.font               = [UIFont systemFontOfSize:.f];
        self.textColor          = [UIColor whiteColor];
        self.badgeColor         = [UIColor redColor];
    }

    return self;
}

- (void)makeEffect {

    // 标签
    self.label               = [[UILabel alloc] init];
    self.label.textColor     = self.textColor;
    self.label.textAlignment = NSTextAlignmentCenter;
    self.label.font          = self.font;
    [self addSubview:self.label];

    // 背景色
    self.backgroundColor     = self.badgeColor;
    self.width               = self.fixedHeight;
    self.height              = self.fixedHeight;
    self.layer.cornerRadius  = self.fixedHeight / .f;
    self.layer.masksToBounds = YES;

    [_contentView addSubview:self];
}

- (void)setBadgeValue:(NSString *)badgeValue animated:(BOOL)animated {

    _badgeValue = badgeValue;

    // 是否执行动画
    if (animated) {

        [UIView animateWithDuration:0.15f animations:^{

            self.alpha = badgeValue.length ==  ?  : ;
        }];

    } else {

        self.alpha = badgeValue.length ==  ?  : ;
    }

    // 如果值为空，则不执行后续操作
    if (badgeValue.length <= ) {

        return;
    }

    // 设置文本
    self.label.text = badgeValue;
    [self.label sizeToFit];

    // 更新尺寸
    if (self.label.width + self.sensitiveTextWidth > self.width) {

        self.width += self.sensitiveWidth;

    } else {

        self.width = self.fixedHeight;
    }

    // 更新文本尺寸
    self.label.center = self.middlePoint;

    // 根据位置更新尺寸
    CGFloat offset = self.fixedHeight / .f;
    self.position == BadgePositionCenterLeft  ? self.left = -offset, self.centerY = self.contentView.middleY : ;
    self.position == BadgePositionCenterRight ? self.left = self.contentView.width - offset, self.centerY = self.contentView.middleY : ;

    self.position == BadgePositionTopLeft     ? self.left = -offset, self.y    = -offset : ;
    self.position == BadgePositionTopRight    ? self.top  = -offset, self.left = self.contentView.width - offset : ;

    self.position == BadgePositionBottomLeft  ? self.left = -offset, self.top = self.contentView.height - offset : ;
    self.position == BadgePositionBottomRight ? self.left = self.contentView.width - offset, self.top = self.contentView.height - offset : ;
}

- (void)setBadgeValue:(NSString *)badgeValue {

    [self setBadgeValue:badgeValue animated:NO];
}

@end