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Example/SellyCloudSDK/Controllers/AVTabBarController.m

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+//
+//  AVTabBarController.m
+//  AVDemo
+//
+
+#import "AVTabBarController.h"
+#import "AVHomeViewController.h"
+#import "AVCallViewController.h"
+#import "AVSettingsViewController.h"
+#import "AVLoginViewController.h"
+#import "AVUserManager.h"
+
+@interface AVTabBarController () <AVLoginViewControllerDelegate>
+@end
+
+@implementation AVTabBarController
+
+- (void)viewDidLoad {
+    [super viewDidLoad];
+
+    // Create Home tab
+    AVHomeViewController *homeVC = [[AVHomeViewController alloc] init];
+    UINavigationController *homeNav = [[UINavigationController alloc] initWithRootViewController:homeVC];
+    homeNav.tabBarItem = [[UITabBarItem alloc] initWithTitle:@"首页"
+                                                        image:[UIImage systemImageNamed:@"house"]
+                                                selectedImage:[UIImage systemImageNamed:@"house.fill"]];
+
+    // Create Call tab
+    AVCallViewController *callVC = [[AVCallViewController alloc] init];
+    UINavigationController *callNav = [[UINavigationController alloc] initWithRootViewController:callVC];
+    callNav.tabBarItem = [[UITabBarItem alloc] initWithTitle:@"通话"
+                                                        image:[UIImage systemImageNamed:@"phone"]
+                                                selectedImage:[UIImage systemImageNamed:@"phone.fill"]];
+
+    // Create Settings tab
+    AVSettingsViewController *settingsVC = [[AVSettingsViewController alloc] init];
+    UINavigationController *settingsNav = [[UINavigationController alloc] initWithRootViewController:settingsVC];
+    settingsNav.tabBarItem = [[UITabBarItem alloc] initWithTitle:@"设置"
+                                                           image:[UIImage systemImageNamed:@"gearshape"]
+                                                   selectedImage:[UIImage systemImageNamed:@"gearshape.fill"]];
+
+    // Set view controllers
+    self.viewControllers = @[homeNav, callNav, settingsNav];
+
+    // Customize tab bar appearance
+    self.tabBar.tintColor = [UIColor systemBlueColor];
+}
+
+- (void)viewDidAppear:(BOOL)animated {
+    [super viewDidAppear:animated];
+    
+    // 检查登录状态
+    [self checkLoginStatus];
+}
+
+#pragma mark - Login Management
+
+- (void)checkLoginStatus {
+    // 如果未登录，显示登录页面
+    if (![AVUserManager sharedManager].isLoggedIn) {
+        [self showLoginViewController];
+    }
+}
+
+- (void)showLoginViewController {
+    AVLoginViewController *loginVC = [[AVLoginViewController alloc] init];
+    loginVC.delegate = self;
+    loginVC.modalPresentationStyle = UIModalPresentationFullScreen;
+    
+    // 确保不会重复弹出登录页面
+    if (self.presentedViewController == nil) {
+        [self presentViewController:loginVC animated:YES completion:nil];
+    }
+}
+
+#pragma mark - AVLoginViewControllerDelegate
+
+- (void)loginViewControllerDidLogin:(AVLoginViewController *)controller {
+    // 登录成功，关闭登录页面
+    [controller dismissViewControllerAnimated:YES completion:^{
+        NSLog(@"✅ 登录成功，已进入应用");
+    }];
+}
+
+#pragma mark - Orientation Support (将方向决策交给顶层 ViewController)
+
+- (BOOL)shouldAutorotate {
+    // 返回当前显示的 NavigationController 的顶层 VC 的设置
+    UINavigationController *nav = (UINavigationController *)self.selectedViewController;
+    if ([nav isKindOfClass:[UINavigationController class]]) {
+        return [nav.topViewController shouldAutorotate];
+    }
+    return [self.selectedViewController shouldAutorotate];
+}
+
+- (UIInterfaceOrientationMask)supportedInterfaceOrientations {
+    // 返回当前显示的 NavigationController 的顶层 VC 的设置
+    UINavigationController *nav = (UINavigationController *)self.selectedViewController;
+    if ([nav isKindOfClass:[UINavigationController class]]) {
+        return [nav.topViewController supportedInterfaceOrientations];
+    }
+    return [self.selectedViewController supportedInterfaceOrientations];
+}
+
+- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation {
+    // 返回当前显示的 NavigationController 的顶层 VC 的设置
+    UINavigationController *nav = (UINavigationController *)self.selectedViewController;
+    if ([nav isKindOfClass:[UINavigationController class]]) {
+        return [nav.topViewController preferredInterfaceOrientationForPresentation];
+    }
+    return [self.selectedViewController preferredInterfaceOrientationForPresentation];
+}
+
+@end