cdts/xdts-ios 3/TreeHole/Code/Base/PYBaseViewController.m

//
//  PYBaseViewController.m
//  Food
//
//  Created by ko1o on 2019/7/16.
//  Copyright © 2019年 ko1o. All rights reserved.
//

#import "PYBaseViewController.h"
#import "UIViewController+BXYStatefulViewController.h"
#import "UIImage+Extender.h"
#import <IQKeyboardManager.h>
#import "UINavigationController+FDFullscreenPopGesture.h"

@interface PYBaseViewController ()<MTStatefulBaseViewDelegate>

@property (nonatomic, strong) UIImage *backupNavgationBarShadowImage;
@property (nonatomic, assign) BOOL hasLoadedStateful;
@property (nonatomic, weak) UIViewController * mt_previousVC;
@property (nonatomic, assign) BOOL isViewAppear;
@property (nonatomic, assign) BOOL isTrackPageEnded;

@property (nonatomic, assign) BOOL stopLoading;

@property (nonatomic, strong) UIView *maskView;

@end

@implementation PYBaseViewController

//MARK: - QM
- (instancetype)init {
    if (self = [super init]) {
        if ([QMUIHelper.visibleViewController.navigationController isKindOfClass:NSClassFromString(@"THNavigationController")]) {
            //兼容QMUIKit
            self.hidesBottomBarWhenPushed = YES;
        }
        
    }
    return self;
}


//MARK: - Other
- (void)dealloc
{
    [[NSNotificationCenter defaultCenter] removeObserver:self];
}

- (instancetype)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
    if (self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]) {
        
        self.extendedLayoutIncludesOpaqueBars = YES;
        
        if (![self isSupportFullScreenLayout]) {
            self.edgesForExtendedLayout = UIRectEdgeNone;
//            self.automaticallyAdjustsScrollViewInsets = NO;
        }
        self.mt_translucent = NO;
        self.mt_nav_barTintColor = [UIColor whiteColor];
        self.mt_nav_tintColor = [UIColor blackColor];
        self.mt_barStyle = UIBarStyleDefault;
    }
    return self;
}

- (UIStatusBarStyle)preferredStatusBarStyle
{
    if (self.mt_barStyle == UIBarStyleBlack) {
        return UIStatusBarStyleLightContent;
    }
    return UIStatusBarStyleLightContent;
}

- (BOOL)isSupportContentScrollView
{
    return NO;
}

- (BOOL)isSupportShare
{
    return NO;
}


- (void)viewDidLayoutSubviews
{
    [super viewDidLayoutSubviews];
    
   self.bxy_loadingView.centerY = self.bxy_errorView.centerY = self.bxy_emptyView.centerY = self.view.height * 0.5;
    
    self.bxy_emptyView.userInteractionEnabled = NO;
    self.bxy_errorView.userInteractionEnabled = NO;
}

- (BOOL)canBack {
    return YES;
}

- (BOOL)fd_interactivePopDisabled {
    if (![self canBack]) {
        return YES;
    }
    if ([MTAlertView hasAlertViewShowing]) { // 当前显示AlertView禁用
        return YES;
    }
    return _fd_interactivePopDisabled;
}

- (void)viewDidLoad {
    [super viewDidLoad];
    
    //配置页面状态view
    if ([self mt_shouldSetupStateful] && self.hasLoadedStateful) {
        [self bxy_setupInitialViewState];
    }
    
    self.view.backgroundColor = BG_COLOR;
    
    self.maskView = [[UIView alloc] initWithFrame:[UIScreen mainScreen].bounds];
    self.maskView.backgroundColor = UIColor.blackColor;
    WeakSelf(self);
    [self.maskView addTapWithAction:^{
        [weakself.view endEditing:YES];
    }];
    
    if ([self mt_shouldSetupStateful]) {
        self.bxy_loadingView = [[MTStatefulBaseView alloc] initWithFrame:CGRectZero type:MTStatefulViewTypeLoading delegate:self];
        self.bxy_emptyView = [[MTStatefulBaseView alloc] initWithFrame:CGRectZero type:MTStatefulViewTypeEmpty delegate:self];
        self.bxy_errorView = [[MTStatefulBaseView alloc] initWithFrame:CGRectZero type:MTStatefulViewTypeError delegate:self];
    }
    
    if (self.preferredStatusBarStyle == UIStatusBarStyleLightContent) {
        self.mt_barStyle = UIBarStyleBlack;
    } else {
        self.mt_barStyle = UIBarStyleDefault;
    }
    
    if ([self isSupportContentScrollView]) {
        self.contentScrollView = [[UIScrollView alloc] initWithFrame:self.view.bounds];
        self.contentScrollView.backgroundColor = [UIColor clearColor];
        self.contentScrollView.showsVerticalScrollIndicator = YES;
        self.contentScrollView.alwaysBounceVertical = YES;
        [self.view addSubview:self.contentScrollView];
        self.contentScrollView.contentInsetAdjustmentBehavior = UIScrollViewContentInsetAdjustmentNever;
        
//        if ([[[UIDevice currentDevice] systemVersion] floatValue] <= 11.0) {
//            self.contentScrollView.y = NAVIGATION_BAR_HEIGHT;
//            self.contentScrollView.height = self.view.height - self.contentScrollView.y;
//        }
    }
    
    if (self.navigationController.childViewControllers.count > 1) {
        UIBarButtonItem *backItem = [[UIBarButtonItem alloc] initWithImage:ImageNamed(@"TH_back_black") style:UIBarButtonItemStyleDone target:self action:@selector(back)];
        
        self.navigationItem.leftBarButtonItem = backItem;
    }
    
    if (![self canBack]) {
        self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc] initWithCustomView:[UIView new]];
    }
    
    [self.navigationController setModalPresentationStyle:UIModalPresentationFullScreen];
    
    self.mt_prefersNavigationBarShadowHidden = YES;
    
    if ([self mt_nagationBarTransparent]) {
        self.mt_translucent = YES;
        self.extendedLayoutIncludesOpaqueBars = YES;
    }
    
    if ([self isSupportShare]) {
        self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithImage:ImageNamed(@"share") style:UIBarButtonItemStyleDone target:self action:@selector(shareDidClick)];
    }
    
//    if (self.mt_prefersNavigationBarShadowHidden) {
//        self.navigationController.navigationBar.shadowImage = [UIImage new];
//    }
}

#pragma mark - UITextFieldDelegate
- (BOOL)textFieldShouldBeginEditing:(UITextField *)textField
{
    if ([textField.inputView isKindOfClass:NSClassFromString(@"MTPickerView")]) {
        textField.tintColor = UIColor.clearColor;
        [self showMaskView];
    } else {
        [IQKeyboardManager sharedManager].enableAutoToolbar = NO;
    }
    return YES;
}

- (BOOL)textFieldShouldEndEditing:(UITextField *)textField
{
    if ([textField.inputView isKindOfClass:NSClassFromString(@"MTPickerView")]) {
        [self hideMaskView];
    }
    
    return YES;
}

- (void)showMaskView
{
    [IQKeyboardManager sharedManager].enableAutoToolbar = NO;
    [self.view.window addSubview:self.maskView];
    self.maskView.alpha = 0.0;
    [self.view.window bringSubviewToFront:self.maskView];
    [UIView animateWithDuration:0.25 animations:^{
        self.maskView.alpha = 0.3;
    }];
}

- (void)hideMaskView
{
    [UIView animateWithDuration:0.25 animations:^{
        self.maskView.alpha = 0.0;
    } completion:^(BOOL finished) {
        [IQKeyboardManager sharedManager].enableAutoToolbar = NO;
    }];
}

- (void)viewWillDisappear:(BOOL)animated
{
    [super viewWillDisappear:animated];
    
    [self.view endEditing:animated];
    
    self.isViewAppear = NO;
}

- (void)back {
    [self.navigationController popViewControllerAnimated:YES];
}


- (void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event
{
    [super touchesBegan:touches withEvent:event];
    
    [self.view endEditing:YES];
}

- (BOOL)mt_nagationBarTransparent
{
    if (self.title.length > 0) { // 有文本
        return NO;
    }
    return _mt_nagationBarTransparent;
}

- (BOOL)isSupportFullScreenLayout
{
    return YES;
}

- (UIModalPresentationStyle)modalPresentationStyle {
    return UIModalPresentationFullScreen;
}

//配置是否显示loading empty error 页面提示
- (BOOL)mt_shouldSetupStateful
{
    return YES;
}


- (NSString *)emptyTips {
    return @"空空无也~";
}

- (BOOL)mt_hasContentForStateful
{
    return self.stopLoading;
}

- (void)mt_startStatefulLoading:(BOOL)animated
{
    
    if ([self mt_shouldSetupStateful]) {
        self.hasLoadedStateful = YES;
        dispatch_async(dispatch_get_main_queue(), ^{
            [self bxy_startLoading:animated completion:^{
                ;
            }];
        });
    }
}

- (void)mt_endStatefulLoading:(BOOL)animated error:(NSError *)error
{
    if ([self mt_shouldSetupStateful]) {
        [self bxy_endLoading:animated error:error completion:^{
            ;
        }];
    }
    
}

- (void)viewWillAppear:(BOOL)animated
{
    [super viewWillAppear:animated];
    if (![self isNavigationBarHidden]) {
        [self.navigationController setNavigationBarHidden:NO animated:animated];
    }
    [self mt_applyAppearanceToNavigationBar:self.navigationController.navigationBar];
}

- (BOOL)enableAutoToolbar {
    return YES;
}

- (BOOL)isNavigationBarHidden {
    return NO;
}

- (void)viewDidAppear:(BOOL)animated
{
    //当前页面的源VC，往前回溯一级
    UIViewController *mt_previousViewController;
    NSInteger index = [self.navigationController.viewControllers indexOfObject:self];
    if (index != NSNotFound && index >= 1) {
        mt_previousViewController = [self.navigationController.viewControllers objectAtIndex:index -1];
    }
    if (self.parentViewController && !mt_previousViewController) { //被其他vc 承载
        UIViewController * parent = self.parentViewController;
        index = [parent.navigationController.viewControllers indexOfObject:parent];
        if (index != NSNotFound && index >= 1) {
            mt_previousViewController = [parent.navigationController.viewControllers objectAtIndex:index -1];
        }
    }
    if (!mt_previousViewController) {
        mt_previousViewController = self.presentingViewController;
    }
    
    self.mt_previousVC = mt_previousViewController;
    
    [super viewDidAppear:animated];
    self.isViewAppear = YES;
    
    [self.navigationController setNavigationBarHidden:[self isNavigationBarHidden] animated:NO];
    [IQKeyboardManager sharedManager].enableAutoToolbar = [self enableAutoToolbar];
    [self mt_applyAppearanceToNavigationBar:self.navigationController.navigationBar];
}

- (void)startLoading
{
    self.stopLoading = NO;
    [self mt_startStatefulLoading:NO];
}

- (void)endLoading:(NSError *)error
{
    self.stopLoading = YES;
    [self mt_endStatefulLoading:NO error:error];
}

#pragma mark - StatefulViewControllerProtocol

/**
 *  Return true if content is available in your controller.
 *
 *  - returns: true if there is content available in your controller.
 */
- (BOOL)hasContent
{
    return  [self mt_hasContentForStateful];
}

/**
 *  This method is called if an error occurred, but `hasContent` returned true.
 *  You would typically display an unobstrusive error message that is easily dismissable
 *  for the user to continue browsing content.
 *
 *  - parameter error:    The error that occurred
 */
- (void)handleErrorWhenContentAvailable:(NSError *)error
{
    
}

#pragma mark - MTStatefulBaseViewDelegate


- (MTStatefulConfigItem *)statefulConfigItemForStatefulViewType:(MTStatefulViewType)statefulViewType
{
    MTStatefulConfigItem *item = [MTStatefulConfigItem new];
    
    WeakSelf(self);
    if (statefulViewType == MTStatefulViewTypeEmpty) {
        MTStatefulConfigItem *item = [[MTStatefulConfigItem alloc] init];
        item.statefulTitle = [self emptyTips];
        return item;
    }
//    else
//    if (statefulViewType == MTStatefulViewTypeError) {
//        StrongSelf(self);
//        MTStatefulConfigItem *item = [[MTStatefulConfigItem alloc] init];
//        item.statefulTitle = @"哎哟！网络异常，请稍后…";
//        item.shouldShowErrorRefresh = YES;
//        item.didClickedRefreshBlock = self.didClickedRefreshBlock;
//        return item;
//    }
    item.shouldShowErrorRefresh = NO;
    return item;
}

@end


@interface UIViewControllerMTAppearance : NSObject
@property (nonatomic, assign) BOOL mt_translucent;
@property (nonatomic, assign) BOOL mt_prefersNavigationBarShadowHidden;
@property (nonatomic, strong) UIColor * mt_nav_barTintColor;
@property (nonatomic, strong) UIColor * mt_navbarBackgroundImageColor;
@property (nonatomic, strong) UIColor * mt_nav_tintColor;
@property (nonatomic, strong) NSDictionary * mt_titleTextAttributes;
@property (nonatomic, assign) UIBarStyle mt_barStyle;
@property (nonatomic, strong) UIImage * mt_navbarBackgroundImage;
@end
@implementation UIViewControllerMTAppearance

@end

@interface UIViewController (MTAppearanceInner)
@property (nonatomic, strong) UIViewControllerMTAppearance *mtAppearance;
@end


@implementation UIViewController (MTAppearance)
@dynamic mt_translucent;
@dynamic mt_prefersNavigationBarShadowHidden;
@dynamic mt_nav_barTintColor;
@dynamic mt_navbarBackgroundImageColor;
@dynamic mt_nav_tintColor;
@dynamic mt_titleTextAttributes;
@dynamic mt_navbarBackgroundImage;

- (BOOL)mt_translucent
{
    return self.mtAppearance.mt_translucent;
}

- (void)setMt_translucent:(BOOL)mt_translucent
{
    self.mtAppearance.mt_translucent = mt_translucent;
}

- (UIViewControllerMTAppearance *)mtAppearance
{
    UIViewControllerMTAppearance *mtAppearance =  objc_getAssociatedObject(self, _cmd);
    if (!mtAppearance) {
        mtAppearance  = [UIViewControllerMTAppearance new];
        objc_setAssociatedObject(self, _cmd, mtAppearance, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
    }
    return mtAppearance;
}

- (id)forwardingTargetForSelector:(SEL)sel
{
    if ([self.mtAppearance respondsToSelector:sel]) {
        return self.mtAppearance;
    }
    return nil;
}

- (void)mt_applyAppearanceToNavigationBar:(UINavigationBar *) navigationBar
{
    UIViewController * vc = self;
    navigationBar.translucent = vc.mt_translucent;
    UIImage *barBackgroundImage = [UIImage new];
    if (vc.mt_navbarBackgroundImageColor) {
        UIImage *barImage = vc.mt_navbarBackgroundImageColor == [UIColor clearColor] ? [UIImage new] : [UIImage imageWithColor:vc.mt_navbarBackgroundImageColor size:CGSizeMake(10, 10)] ;
        barBackgroundImage = barImage;
    }
    [navigationBar setBackgroundImage:barBackgroundImage forBarMetrics:UIBarMetricsDefault];
    if (vc.mt_navbarBackgroundImage) {
        [navigationBar setBackgroundImage:vc.mt_navbarBackgroundImage forBarMetrics:UIBarMetricsDefault];
    }
    vc.mt_nav_barTintColor = [self preferredStatusBarStyle] == UIStatusBarStyleLightContent ? COLOR_WITH_RGB(0x15112D) : [UIColor whiteColor];
    navigationBar.barStyle = vc.mt_barStyle;
    navigationBar.barTintColor = vc.mt_nav_barTintColor;
    UIColor *tintColor = [self preferredStatusBarStyle] == UIStatusBarStyleLightContent ? UIColor.whiteColor : TITLE_COLOR;
    navigationBar.tintColor = tintColor;
   
    navigationBar.titleTextAttributes = vc.mt_titleTextAttributes ?:  @{NSFontAttributeName : MT_FONT_MEDIUM_SIZE(15), NSForegroundColorAttributeName : tintColor};
    navigationBar.shadowImage = [vc mt_prefersNavigationBarShadowHidden] ? [UIImage new] : nil ;
//    navigationBar.shadowImage = [UIImage imageWithColor:[UIColor colorWithWhite:1.0 alpha:0.1] size:CGSizeMake(SCREEN_WIDTH, 0.5)];
    
    if (@available(iOS 15.0, *)) {
        UINavigationBarAppearance *barApp = [UINavigationBarAppearance new];
        barApp.backgroundColor = navigationBar.barTintColor;
        barApp.titleTextAttributes = navigationBar.titleTextAttributes;
        barApp.shadowImage = navigationBar.shadowImage;
        barApp.shadowColor = [UIColor clearColor];
        barApp.backgroundImage = barBackgroundImage;
        self.navigationController.navigationBar.translucent = [self mt_translucent];
        if ([self mt_translucent]) { // 设置透明导航栏
            [barApp configureWithTransparentBackground];
        } else {
            barApp.backgroundImage = [UIImage imageWithColor:navigationBar.barTintColor size:navigationBar.size];
        }
        self.navigationController.navigationBar.scrollEdgeAppearance = barApp;
        self.navigationController.navigationBar.standardAppearance = barApp;
    }
}


@end