tederen_ios/smartRhino/Project/Base/SubClass/Button/TDButton.m

//
//  TDButton.m
//  TheoryNetwork
//
//  Created by tederen on 2019/9/20.
//  Copyright © 2019 tederen. All rights reserved.
//

#import "TDButton.h"

@interface TDButton ()

@property (nonatomic) CGSize hotZoneSize;
@property (nonatomic, assign) BOOL hasCustHotZone;
@property (nonatomic, strong) UILabel *badgeLabel;

@end

@implementation TDButton

- (instancetype)init
{
    self = [super init];
    if (self) {
        self.adjustsImageWhenHighlighted = NO;
    }
    return self;
}

- (void)setCurrentButtonHotSize:(CGSize)size {
    self.hasCustHotZone = YES;
    //热区不应小于44x44
    if (size.width < 44) {
        size.width = 44;
    }
    if (size.height < 44) {
        size.height = 44;
    }
    _hotZoneSize = size;
}

- (BOOL)pointInside:(CGPoint)point withEvent:(UIEvent *)event {
    if (self.hasCustHotZone) {
        CGRect bounds = self.bounds;
        CGFloat widthDelta = MAX(self.hotZoneSize.width - bounds.size.width, 0);
        CGFloat heightDelta = MAX(self.hotZoneSize.height - bounds.size.height, 0);
        bounds = CGRectInset(bounds, - 0.5 * widthDelta, - 0.5 * heightDelta);
        return CGRectContainsPoint(bounds, point);
    }
    return [super pointInside:point withEvent:event];
}

- (void)verticalImageAndTitle:(CGFloat)spacing {
    CGSize imageSize = self.imageView.frame.size;
    CGSize titleSize = self.titleLabel.frame.size;
    CGSize textSize = [self.titleLabel sizeThatFits:CGSizeZero];
    CGSize frameSize = CGSizeMake(ceilf(textSize.width), ceilf(textSize.height));
    if (titleSize.width + 0.5 < frameSize.width) {
        titleSize.width = frameSize.width;
    }
    CGFloat totalHeight = (imageSize.height + titleSize.height + spacing);
    self.imageEdgeInsets = UIEdgeInsetsMake(- (totalHeight - imageSize.height), 0.0, 0.0, - titleSize.width);
    self.titleEdgeInsets = UIEdgeInsetsMake(0, - imageSize.width, - (totalHeight - titleSize.height), 0);
    
}

- (void)setButtonAlpha:(CGFloat)alpha {
    [UIView animateWithDuration:0.2 animations:^{
        self.alpha = alpha;
    }];
}
- (void)setButtonBadge:(NSInteger)num isSelect:(BOOL)isSelect{
    [self addSubview:self.badgeLabel];
    _badgeLabel.textColor = isSelect ? UIColorHex(168BFF): UIColorHex(999999);
    _badgeLabel.font = [UIFont systemFontOfSize:9.f];
    _badgeLabel.text = [NSString stringWithFormat:@"%ld", (long)num];
    CGSize badgeSize = [_badgeLabel sizeThatFits:CGSizeZero];
    _badgeLabel.frame = CGRectMake(self.frame.size.width-2.5, -4.8, badgeSize.width, badgeSize.height);
    _badgeLabel.hidden = num == 0 ? YES : NO;
}
- (void)setButtonBadge:(NSInteger)num {
    [self addSubview:self.badgeLabel];
    _badgeLabel.textColor = UIColorHex(168BFF);
    _badgeLabel.font = [UIFont systemFontOfSize:9.f];
    _badgeLabel.text = [NSString stringWithFormat:@"%ld", (long)num];
    CGSize badgeSize = [_badgeLabel sizeThatFits:CGSizeZero];
    _badgeLabel.frame = CGRectMake(self.frame.size.width-2.5, -4.8, badgeSize.width, badgeSize.height);
    _badgeLabel.hidden = num == 0 ? YES : NO;
}

- (UILabel *)badgeLabel {
    if (!_badgeLabel) {
        _badgeLabel = [UILabel new];
    }
    return _badgeLabel;
}

#pragma mark - otherLayout
- (void)layoutButtonWithEdgeInsetsStyle:(GLButtonEdgeInsetsStyle)style
                        imageTitleSpace:(CGFloat)space {
    // 1. 得到imageView和titleLabel的宽、高
    CGFloat imageWith = self.imageView.image.size.width;
    CGFloat imageHeight = self.imageView.image.size.height;
    
    CGFloat labelWidth = 0.0;
    CGFloat labelHeight = 0.0;
    if ([UIDevice currentDevice].systemVersion.floatValue >= 8.0) {
    // 由于iOS8中titleLabel的size为0，用下面的这种设置
        labelWidth = self.titleLabel.intrinsicContentSize.width;
        labelHeight = self.titleLabel.intrinsicContentSize.height;
    } else {
        labelWidth = self.titleLabel.frame.size.width;
        labelHeight = self.titleLabel.frame.size.height;
    }
    
    // 2. 声明全局的imageEdgeInsets和labelEdgeInsets
    UIEdgeInsets imageEdgeInsets = UIEdgeInsetsZero;
    UIEdgeInsets labelEdgeInsets = UIEdgeInsetsZero;
    
    // 3. 根据style和space得到imageEdgeInsets和labelEdgeInsets的值

    switch (style) {
        case GLButtonEdgeInsetsStyleTop:
        {
            imageEdgeInsets = UIEdgeInsetsMake(-labelHeight-space/2.0, 0, 0, -labelWidth);
            labelEdgeInsets = UIEdgeInsetsMake(0, -imageWith, -imageHeight-space/2.0, 0);
        }
            break;
        case GLButtonEdgeInsetsStyleLeft:
        {
            imageEdgeInsets = UIEdgeInsetsMake(0, -space/2.0, 0, space/2.0);
            labelEdgeInsets = UIEdgeInsetsMake(0, space/2.0, 0, -space/2.0);
        }
            break;
        case GLButtonEdgeInsetsStyleBottom:
        {
            imageEdgeInsets = UIEdgeInsetsMake(0, 0, -labelHeight-space/2.0, -labelWidth);
            labelEdgeInsets = UIEdgeInsetsMake(-imageHeight-space/2.0, -imageWith, 0, 0);
        }
            break;
        case GLButtonEdgeInsetsStyleRight:
        {
            imageEdgeInsets = UIEdgeInsetsMake(0, labelWidth+space/2.0, 0, -labelWidth-space/2.0);
            labelEdgeInsets = UIEdgeInsetsMake(0, -imageWith-space/2.0, 0, imageWith+space/2.0);
        }
            break;
        default:
            break;
    }
    
    // 4. 赋值
    self.titleEdgeInsets = labelEdgeInsets;
    self.imageEdgeInsets = imageEdgeInsets;
}

@end