UIViewController+Swizzling.m
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//
// UIViewController+Swizzling.m
// PDA
//
// Created by KiTee on 2018/9/7.
// Copyright © 2018年 Linno. All rights reserved.
//
#import "UIViewController+Swizzling.h"
#import "BaseNaviController.h"
#import <objc/runtime.h>
@implementation UIViewController (Swizzling)
+ (void)load
{
// 拦截viewWillAppear:事件
SEL origSel0 = @selector(viewWillAppear:);
SEL swizSel0 = @selector(swiz_viewWillAppear:);
[UIViewController swizzleMethods:[self class] originalSelector:origSel0 swizzledSelector:swizSel0];
// 拦截viewDidLoad事件
SEL origSel = @selector(viewDidLoad);
SEL swizSel = @selector(swiz_viewDidLoad:);
[UIViewController swizzleMethods:[self class] originalSelector:origSel swizzledSelector:swizSel];
// 拦截viewDidAppear:事件
SEL origSel2 = @selector(viewDidAppear:);
SEL swizSel2 = @selector(swiz_viewDidAppear:);
[UIViewController swizzleMethods:[self class] originalSelector:origSel2 swizzledSelector:swizSel2];
}
// exchange implementation of two methods
+ (void)swizzleMethods:(Class)class originalSelector:(SEL)origSel swizzledSelector:(SEL)swizSel
{
Method origMethod = class_getInstanceMethod(class, origSel);
Method swizMethod = class_getInstanceMethod(class, swizSel);
// class_addMethod will fail if original method already exists
BOOL didAddMethod = class_addMethod(class, origSel, method_getImplementation(swizMethod), method_getTypeEncoding(swizMethod));
if (didAddMethod) {
class_replaceMethod(class, swizSel, method_getImplementation(origMethod), method_getTypeEncoding(origMethod));
} else {
// origMethod and swizMethod already exist
method_exchangeImplementations(origMethod, swizMethod);
}
}
#pragma mark - 响应自定义viewWillAppear:事件
- (void)swiz_viewWillAppear:(BOOL)animated {
#pragma mark - 处理导航栏显示/隐藏
self.navigationController.navigationBarHidden = ([self respondsToSelector:@selector(isShowNavigationBar)] && [self isShowNavigationBar] == YES) ? YES : NO;
#pragma mark - 根据不同页面设置不同的导航栏风格
if ([self respondsToSelector:@selector(navigationBarStyle)]) {
[BaseNaviController setNavigationBarStyle:[self navigationBarStyle] vc:self];
}
// 系统拍照和相册页面调试
// NSString *className = NSStringFromClass([self class]);
// NSArray *classArrary = @[@"JWMImagePickerController",
// @"CAMImagePickerCameraViewController", @"CAMViewfinderViewController", @"CAMPreviewViewController",
// @"UIInputWindowController", @"UIEditingOverlayViewController", @"PUPhotoPickerHostViewController",
// @"PLPhotoTileViewController"];
#pragma mark - 处理用户打开自动切换主题按钮，根据设定好的时间段进行主题切换
if (kGetUserDefaultsBOOL(ThemeAutoSwitch)) {
if ([NSDate judgeTimeWithStartTime:StartTime1 expireTime:ExpireTime1] || [NSDate judgeTimeWithStartTime:StartTime2 expireTime:ExpireTime2]) {
self.dk_manager.themeVersion = DKThemeVersionNight;
} else {
self.dk_manager.themeVersion = DKThemeVersionNormal;
}
}
#pragma mark - 重返系统事件
[self swiz_viewWillAppear:animated];
}
#pragma mark - 响应自定义viewDidLoad事件
- (void)swiz_viewDidLoad:(BOOL)animated
{
#pragma mark - 处理返回按钮显示/隐藏
self.navigationItem.hidesBackButton = ([self respondsToSelector:@selector(isHideBackButton)] && [self isHideBackButton] == YES) ? YES : NO;
#pragma mark - 处理返回按钮标题显示/隐藏
self.navigationItem.backBarButtonItem = [[UIBarButtonItem alloc]
initWithTitle:@""
style:UIBarButtonItemStylePlain
target:nil
action:nil];
#pragma mark - 重返系统事件
[self swiz_viewDidLoad:animated];
}
#pragma mark - 响应自定义viewDidAppear:事件
- (void)swiz_viewDidAppear:(BOOL)animated
{
#pragma mark - 处理侧滑
// 默认打开侧滑
BOOL enabled = YES;
if (self.navigationController.viewControllers.count == 1) {
// 只有一个控制器的时候禁止侧滑，防止页面卡死
enabled = NO;
} else {
if ([self respondsToSelector:@selector(enableInteractivePopGestureRecognizer)] && [self enableInteractivePopGestureRecognizer] == NO) {
enabled = NO;
}
}
if ([self.navigationController respondsToSelector:@selector(interactivePopGestureRecognizer)]) {
self.navigationController.interactivePopGestureRecognizer.enabled = enabled;
}
#pragma mark - 页面浏览统计
#pragma mark - 重返系统事件
[self swiz_viewDidAppear:animated];
}
#pragma mark - 暗黑模式跟随系统（通过Hook去实现）
/*
- (void)traitCollectionDidChange:(UITraitCollection *)previousTraitCollection {
[super traitCollectionDidChange:previousTraitCollection];
if (@available(iOS 13.0, *)) {
// 应用主题设置添加是否跟随系统按钮，主题模式跟随系统设置
if ([self.traitCollection hasDifferentColorAppearanceComparedToTraitCollection:previousTraitCollection]) {
// 执行操作
NSString *currentTheme = self.dk_manager.themeVersion;
if ([currentTheme isEqualToString:DKThemeVersionNight]) {
currentTheme = DKThemeVersionNormal;
} else if ([currentTheme isEqualToString:DKThemeVersionNormal]) {
currentTheme = DKThemeVersionNight;
}
self.dk_manager.themeVersion = currentTheme;
[BaseNaviController setNavigationBarStyle:[self navigationBarStyle] vc:self];
[self.navigationController preferredStatusBarStyle];
[self setNeedsStatusBarAppearanceUpdate];
}
} else {
// 低版本的不显示跟随系统按钮，主题模式根据用户操作来设置
}
}
*/
@end