我的项目具有功能,我已将我的应用程序连接到外部显示器(例如投影仪)。我的应用程序在两个方向上都可以工作。我的应用程序中有2个窗口。 window1是我们的默认窗口。我已经创建了window2,他的名字叫外部窗口。我已经创建了外部窗口,因为我不想在投影仪上显示我的整个应用程序,所以我只是在window2上添加了视图控制器,然后在外部显示器(投影仪)上显示了window2。
现在的问题是,当我更改应用程序的方向时,它的工作正常,但是window2不会旋转。 Window2始终以横向模式显示。我只想将window2的方向设置为与window1相同。我已经尝试了很多,但是找不到任何解决方案。
请检查我的代码。我已添加代码如何将应用程序与外部显示器连接。如果我做错了任何事情,请检查并帮助我。
AppDelegate.m
-(void)initExternalWindow
{
//Setup external screen window
(AppObj).externalWindow = [[UIWindow alloc]initWithFrame:[[UIScreen mainScreen] bounds]];
UIStoryboard *sb = [UIStoryboard storyboardWithName:@"Main" bundle:nil];
(AppObj).externalScreen = [sb instantiateViewControllerWithIdentifier:@"ExternalVC"];
UINavigationController *navController=[[UINavigationController alloc] initWithRootViewController:(AppObj).externalScreen];
navController.navigationBarHidden=YES;
(AppObj).externalWindow.opaque = NO;
(AppObj).externalWindow.rootViewController = navController;
(AppObj).externalWindow.backgroundColor = view_bg_color;
(AppObj).externalWindow.hidden = NO;
(AppObj).externalWindow.opaque = NO;
[(AppObj).externalWindow makeKeyAndVisible];
}
ViewController.m
- (void)viewDidLoad {
[self setupScreenConnectionNotificationHandlers];
}
#pragma mark- External dispaly detections (Add Notifications)
- (void)setupScreenConnectionNotificationHandlers
{
NSNotificationCenter* center = [NSNotificationCenter defaultCenter];
[center addObserver:self selector:@selector(handleScreenConnectNotification:)
name:UIScreenDidConnectNotification object:nil];
[center addObserver:self selector:@selector(handleScreenDisconnectNotification:)
name:UIScreenDidDisconnectNotification object:nil];
}
- (void)handleScreenConnectNotification:(NSNotification*)aNotification
{
[self setupExternalScreen];
}
- (void)handleScreenDisconnectNotification:(NSNotification*)aNotification
{
if ((AppObj).externalWindow)
{
(AppObj).externalWindow.hidden = YES;
(AppObj).externalWindow = nil;
}
}
-(UIInterfaceOrientationMask)supportedInterfaceOrientations
{
return UIInterfaceOrientationMaskAll;
}
- (BOOL)shouldAutorotate
{
return YES;
}
ExternalVC.m
- (void)viewDidLoad {
[super viewDidLoad];
self.updatedImg.image = (AppObj).updatedImg;
}
- (void)viewWillTransitionToSize:(CGSize)size withTransitionCoordinator:(id<UIViewControllerTransitionCoordinator>)coordinator
{
[super viewWillTransitionToSize:size withTransitionCoordinator:coordinator];
[coordinator animateAlongsideTransition:^(id<UIViewControllerTransitionCoordinatorContext> context)
{
// UIInterfaceOrientation orientation = [[UIApplication sharedApplication] statusBarOrientation];
} completion:^(id<UIViewControllerTransitionCoordinatorContext> context)
{
UIInterfaceOrientation orientation = [[UIApplication sharedApplication] statusBarOrientation];
[[UIDevice currentDevice] setValue:@(orientation) forKey:@"orientation"];
[UINavigationController attemptRotationToDeviceOrientation];
[UIViewController attemptRotationToDeviceOrientation];
}];
}
您现在随旋转窗口一起去,当窗口旋转时,您也必须旋转图像。根据您的需要进行其他更改,我给了您一个带有设备旋转的旋转窗口,只是用以下代码替换了ExternalVC.m
//
// ExternalVC.m
// Sketch
//
// Created by mac on 21/07/18.
// Copyright © 2018 mac. All rights reserved.
//
#import "ExternalVC.h"
@interface ExternalVC ()
@end
@implementation ExternalVC
- (void)viewDidLoad {
[super viewDidLoad];
self.updatedImg.image = (AppObj).updatedImg;
NSLog(@"External window bounds:%lu",(unsigned long)self.supportedInterfaceOrientations);
NSNotificationCenter* center = [NSNotificationCenter defaultCenter];
[center addObserver:self selector:@selector(orientationDidChange:)
name:UIDeviceOrientationDidChangeNotification object:nil];
}
- (void)orientationDidChange:(NSNotification*)aNotification
{
NSLog(@"orientation did change :%@",aNotification);
UIDeviceOrientation orientation = [[UIDevice currentDevice] orientation];
// [self transformForOrientation:orientation];
[self.view.window setTransform:[self transformForOrientation:orientation]];
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
- (UIInterfaceOrientationMask)supportedInterfaceOrientations{
if ([UIScreen mainScreen] == (AppObj).externalWindow.screen || !(AppObj).externalWindow) {
return UIInterfaceOrientationMaskAll;
}else {
return UIInterfaceOrientationMaskPortrait;
}
}
- (void)viewWillTransitionToSize:(CGSize)size withTransitionCoordinator:(id<UIViewControllerTransitionCoordinator>)coordinator
{
[super viewWillTransitionToSize:size withTransitionCoordinator:coordinator];
[coordinator animateAlongsideTransition:^(id<UIViewControllerTransitionCoordinatorContext> context)
{
// UIInterfaceOrientation orientation = [[UIApplication sharedApplication] statusBarOrientation];
} completion:^(id<UIViewControllerTransitionCoordinatorContext> context)
{
//
// NSLog(@"External window bounds:%f || %f",(AppObj).externalWindow.bounds.size.width,(AppObj).externalWindow.bounds.size.height);
// // UIInterfaceOrientation orientation = [[UIApplication sharedApplication] statusBarOrientation];
// // [(AppObj).externalWindow setValue:@(orientation) forKey:@"orientation"];
//// [[UIDevice currentDevice] setValue:@(orientation) forKey:@"orientation"];
////
////
//// [UINavigationController attemptRotationToDeviceOrientation];
// [UIViewController attemptRotationToDeviceOrientation];
// UIDeviceOrientation orientation = [[UIDevice currentDevice] orientation];
// [self transformForOrientation:orientation];
}];
}
#define DegreesToRadians(degrees) (degrees * M_PI / 180)
- (CGAffineTransform)transformForOrientation:(UIDeviceOrientation)orientation {
// [self.view.window setFrame:CGRectMake(0, self.view.window.frame.size.height-50, self.view.window.frame.size.width, [UIScreen mainScreen].bounds.size.height)];
// [self.view.window makeKeyAndVisible];
switch (orientation) {
case UIInterfaceOrientationLandscapeLeft:
NSLog(@"UIInterfaceOrientationLandscapeLeft****");
return CGAffineTransformMakeRotation(DegreesToRadians(90));
case UIInterfaceOrientationLandscapeRight:
NSLog(@"UIInterfaceOrientationLandscapeRightt****");
return CGAffineTransformMakeRotation(-DegreesToRadians(90));
case UIInterfaceOrientationPortraitUpsideDown:
NSLog(@"UIInterfaceOrientationUpSideDownPortrait****");
return CGAffineTransformMakeRotation(DegreesToRadians(180));
case UIInterfaceOrientationPortrait:
default:
NSLog(@"UIInterfaceOrientationPortait****");
return CGAffineTransformMakeRotation(DegreesToRadians(0));
}
}
- (void)statusBarDidChangeFrame:(NSNotification *)notification {
UIDeviceOrientation orientation = [[UIDevice currentDevice] orientation];
NSLog(@"status bar orientation :%ld",(long)orientation);
// [self.view setTransform:[self transformForOrientation:orientation]];
}
-(BOOL)shouldAutorotate{
return YES;
}
/*
#pragma mark - Navigation
// In a storyboard-based application, you will often want to do a little preparation before navigation
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
// Get the new view controller using [segue destinationViewController].
// Pass the selected object to the new view controller.
}
*/
@end