小说绘上架版本

XiaoShuoHui/WXReader/Verdor/SystemVerdor/LLPageControl/LLPageControl.h

@@ -0,0 +1,37 @@
+//
+//  LLPageControl.h
+//  iOSHelper
+//
+//  Created by LL on 2020/5/3.
+//  Copyright © 2020 Chair. All rights reserved.
+//
+
+#import <UIKit/UIKit.h>
+
+NS_ASSUME_NONNULL_BEGIN
+
+/// 自定义UIPageControl
+@interface LLPageControl : UIView
+
+@property (nonatomic, assign) NSUInteger numberOfPages;
+
+@property (nonatomic, assign) NSUInteger currentPage;
+
+/// 小圆的半径，决定了圆的大小和控件默认宽度
+@property (nonatomic, assign) CGFloat radius;
+
+/// 小圆与小圆之间的间距，决定了控件默认宽度
+@property (nonatomic, assign) CGFloat spacing;
+
+@property(nonatomic, strong, nullable) UIColor *pageIndicatorTintColor;
+
+@property(nonatomic, strong, nullable) UIColor *currentPageIndicatorTintColor;
+
+/// 点击事件回调
+@property (nonatomic, copy) void(^clickBlock)(LLPageControl *pageControl, NSUInteger index);
+
++ (instancetype)pageControlWithRadius:(CGFloat)radius spacing:(CGFloat)spacing numberOfPages:(NSUInteger)numberOfPages;
+
+@end
+
+NS_ASSUME_NONNULL_END

XiaoShuoHui/WXReader/Verdor/SystemVerdor/LLPageControl/LLPageControl.m

@@ -0,0 +1,112 @@
+//
+//  LLPageControl.m
+//  iOSHelper
+//
+//  Created by LL on 2020/5/3.
+//  Copyright © 2020 Chair. All rights reserved.
+//
+
+#import "LLPageControl.h"
+
+@implementation LLPageControl
+
+#pragma mark - Public
++ (instancetype)pageControlWithRadius:(CGFloat)radius spacing:(CGFloat)spacing numberOfPages:(NSUInteger)numberOfPages {
+    LLPageControl *page = [[self alloc] init];
+    if (page) {
+        page.radius = radius;
+        page.spacing = spacing;
+        page.numberOfPages = numberOfPages;
+    }
+    return page;
+}
+
+- (instancetype)initWithFrame:(CGRect)frame {
+    if (self = [super initWithFrame:frame]) {
+        [self initialize];
+    }
+    return self;
+}
+
+
+#pragma mark - Private
+- (void)initialize {
+    self.backgroundColor = [UIColor clearColor];
+}
+
+#pragma mark - 创建小圆并添加约束
+- (void)layoutSubviews {
+    [super layoutSubviews];
+    
+    for (UIView *view in self.subviews) {
+        [view removeFromSuperview];
+    }
+    
+    // 添加指定数量的小圆
+    NSMutableArray<UIView *> *array = [NSMutableArray array];
+    for (NSInteger i = 0; i < self.numberOfPages; i++) {
+        UIView *view = [[UIView alloc] init];
+        view.tag = 10000 + i;
+        if (i == self.currentPage) {
+            view.backgroundColor = self.currentPageIndicatorTintColor;
+        } else {
+            view.backgroundColor = self.pageIndicatorTintColor;
+        }
+        view.layer.cornerRadius = self.radius;
+        view.layer.masksToBounds = YES;
+        view.translatesAutoresizingMaskIntoConstraints = NO;
+        [view addGestureRecognizer:[[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(click:)]];
+        [self addSubview:view];
+        [array addObject:view];
+    }
+    
+    // 添加约束
+    UIView *_view;
+    for (UIView *view in array) {
+        if (!_view) {
+            [self addConstraint:[NSLayoutConstraint constraintWithItem:view attribute:NSLayoutAttributeLeft relatedBy:NSLayoutRelationEqual toItem:self attribute:NSLayoutAttributeLeft multiplier:1.0f constant:0.0f]];
+        } else {
+            [self addConstraint:[NSLayoutConstraint constraintWithItem:view attribute:NSLayoutAttributeLeft relatedBy:NSLayoutRelationEqual toItem:_view attribute:NSLayoutAttributeRight multiplier:1.0f constant:self.spacing]];
+        }
+        _view = view;
+        [self addConstraint:[NSLayoutConstraint constraintWithItem:view attribute:NSLayoutAttributeCenterY relatedBy:NSLayoutRelationEqual toItem:self attribute:NSLayoutAttributeCenterY multiplier:1.0f constant:0.0f]];
+        [self addConstraint:[NSLayoutConstraint constraintWithItem:view attribute:NSLayoutAttributeHeight relatedBy:NSLayoutRelationEqual toItem:self attribute:NSLayoutAttributeHeight multiplier:0.0f constant:self.radius * 2.0]];
+        [self addConstraint:[NSLayoutConstraint constraintWithItem:view attribute:NSLayoutAttributeWidth relatedBy:NSLayoutRelationEqual toItem:self attribute:NSLayoutAttributeWidth multiplier:0.0f constant:self.radius * 2.0]];
+    }
+}
+
+- (CGSize)intrinsicContentSize {
+    CGFloat width = self.numberOfPages * (self.radius * 2.0) + (self.numberOfPages - 1) * self.spacing;
+    return CGSizeMake(width, self.radius * 2.0);
+}
+
+- (void)click:(UIView *)view {
+    !self.clickBlock ?: self.clickBlock(self, view.tag - 10000);
+}
+
+
+#pragma mark - Setter
+- (void)setCurrentPage:(NSUInteger)currentPage {
+    UIView *view = [self viewWithTag:10000 + _currentPage];
+    view.backgroundColor = self.pageIndicatorTintColor;
+    _currentPage = currentPage;
+    view = [self viewWithTag:10000 + _currentPage];
+    view.backgroundColor = self.currentPageIndicatorTintColor;
+}
+
+- (void)setNumberOfPages:(NSUInteger)numberOfPages {
+    _numberOfPages = numberOfPages;
+    [self setNeedsLayout];
+    [self layoutIfNeeded];
+}
+
+#pragma mark Getter
+- (UIColor *)pageIndicatorTintColor {
+    return _pageIndicatorTintColor = _pageIndicatorTintColor ?: [UIColor whiteColor];
+}
+
+- (UIColor *)currentPageIndicatorTintColor {
+    return _currentPageIndicatorTintColor = _currentPageIndicatorTintColor ?: [UIColor orangeColor];
+}
+
+@end