124 lines
4.3 KiB
Objective-C
124 lines
4.3 KiB
Objective-C
//
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// XCCurrentVCStackManager.m
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// XCBaseUIKit
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//
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// Created by 卫明何 on 2018/8/9.
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// Copyright © 2018年 KevinWang. All rights reserved.
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//
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#import "XCCurrentVCStackManager.h"
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NSString * const kRoomChatPushViewKey = @"kRoomChatPushViewKey";
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@implementation XCCurrentVCStackManager
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+ (instancetype)shareManager {
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static dispatch_once_t onceToken = 0;
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static id instance;
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dispatch_once(&onceToken, ^{
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instance = [[self alloc] init];
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});
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return instance;
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}
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- (UIViewController *)getCurrentVC {
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///兼容房间内私聊的
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[[NSNotificationCenter defaultCenter] postNotificationName:kRoomChatPushViewKey object:nil];
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UIViewController *rootViewController = [UIApplication sharedApplication].delegate.window.rootViewController;
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UIViewController *currentVC = [self getCurrentVCFrom:rootViewController];
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return currentVC;
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}
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- (UIViewController *)getCurrentVCFrom:(UIViewController *)rootVC {
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UIViewController *currentVC;
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if ([rootVC presentedViewController]) {
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// 视图是被presented出来的
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rootVC = [rootVC presentedViewController];
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}
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if ([rootVC isKindOfClass:[UITabBarController class]]) {
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// 根视图为UITabBarController
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currentVC = [self getCurrentVCFrom:[(UITabBarController *)rootVC selectedViewController]];
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} else if ([rootVC isKindOfClass:[UINavigationController class]]) {
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// 根视图为UINavigationController
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currentVC = [self getCurrentVCFrom:[(UINavigationController *)rootVC visibleViewController]];
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} else {
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// 根视图为非导航类
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currentVC = rootVC;
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}
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return currentVC;
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}
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- (UIViewController *)currentViewController {
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UIWindow *keyWindow = [UIApplication sharedApplication].keyWindow;
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UIViewController *vc = keyWindow.rootViewController;
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while (vc.presentedViewController) {
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vc = vc.presentedViewController;
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if ([vc isKindOfClass:[UINavigationController class]]) {
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vc = [(UINavigationController *)vc visibleViewController];
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}
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else if ([vc isKindOfClass:[UITabBarController class]]) {
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vc = [(UITabBarController *)vc selectedViewController];
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}
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}
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return vc;
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}
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- (UINavigationController *)currentNavigationController {
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return [self currentNC];
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}
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- (UINavigationController *)currentNC{
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if (![[UIApplication sharedApplication].windows.lastObject isKindOfClass:[UIWindow class]]) {
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NSAssert(0, @"未获取到导航控制器");
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return nil;
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}
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UIViewController *rootViewController = [UIApplication sharedApplication].keyWindow.rootViewController;
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return [self getCurrentNCFrom:rootViewController];
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}
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//递归
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- (UINavigationController *)getCurrentNCFrom:(UIViewController *)vc{
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if ([vc isKindOfClass:NSClassFromString(@"MMDrawerController")]) {
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vc = (UIViewController *)[vc valueForKey:@"centerViewController"];
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}
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if ([vc isKindOfClass:[UITabBarController class]]) {
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UINavigationController *nc = ((UITabBarController *)vc).selectedViewController;
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return [self getCurrentNCFrom:nc];
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}
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else if ([vc isKindOfClass:[UINavigationController class]]) {
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if (((UINavigationController *)vc).presentedViewController) {
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return [self getCurrentNCFrom:((UINavigationController *)vc).presentedViewController];
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}
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return [self getCurrentNCFrom:((UINavigationController *)vc).topViewController];
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}
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else if ([vc isKindOfClass:[UIViewController class]]) {
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if (vc.presentedViewController) {
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return [self getCurrentNCFrom:vc.presentedViewController];
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}
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else {
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if (!vc.navigationController) {
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if (vc.presentingViewController) {
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[vc dismissViewControllerAnimated:NO completion:nil];
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return [self getCurrentNCFrom:vc.presentingViewController];
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} else {
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NSAssert(0, @"未获取到导航控制器");
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return nil;
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}
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} else {
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return vc.navigationController;
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}
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}
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}
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else {
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NSAssert(0, @"未获取到导航控制器");
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return nil;
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}
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}
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@end
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