iOS:在plist中忽略初始界面方向[UIInterfaceOrientation]

Question

我正在尝试将我的应用的初始方向设置为UIInterfaceOrientationLandscapeLeft

我不能

'Initial interface orientation'[UIInterfaceOrientation]

覆盖数组中的第一项

'Supported interface orientations'[UISupportedInterfaceOrientations]

我注意到一个iphone应用总是以'Portrait(底部主页按钮)'开头.数组是:

'Supported interface orientations'[UISupportedInterfaceOrientations]

Portrait (bottom home button)

Landscape (left home button)

Landscape (right home button)

这是预期的.

如果我在摘要页面上关闭PORTRAIT HOME BOTTOM按钮OFF THEN BACK ON然后数组的顺序改变而Portrait(底部主页按钮)移动到底部.

Landscape (left home button)

Landscape (right home button)

Portrait (bottom home button)

当我运行应用程序时,它现在从横向(左主页按钮)开始,因为它现在是列表的顶部.哪个好

但

当我添加

'Initial interface orientation'[UIInterfaceOrientation]

并将其设置为

Landscape (right home button)

它被忽略,而数组中的第一项则被使用

Landscape (left home button)

我检查了shouldAutorotateToInterfaceOrientation,它只阻止了肖像颠倒

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
    // Return YES for supported orientations
    if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone) {
        return (interfaceOrientation != UIInterfaceOrientationPortraitUpsideDown);
    } else {
        return YES;
    }
}

我还添加了调试代码

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
    if(interfaceOrientation == UIInterfaceOrientationPortrait){
        NSLog(@"shouldAutorotateToInterfaceOrientation:UIInterfaceOrientationPortrait");
    }else if(interfaceOrientation == UIInterfaceOrientationPortraitUpsideDown){
            NSLog(@"shouldAutorotateToInterfaceOrientation:UIInterfaceOrientationPortraitUpsideDown");
    }else  if(interfaceOrientation == UIInterfaceOrientationLandscapeLeft){
            NSLog(@"shouldAutorotateToInterfaceOrientation:UIInterfaceOrientationLandscapeLeft");
    }else if(interfaceOrientation == UIInterfaceOrientationLandscapeRight){
        NSLog(@"shouldAutorotateToInterfaceOrientation:UIInterfaceOrientationLandscapeRight");
    }else {
        NSLog(@"shouldAutorotateToInterfaceOrientation:UNKNOWN");
    }

    return YES;
}

我明白了

 shouldAutorotateToInterfaceOrientation:UIInterfaceOrientationLandscapeRight
 shouldAutorotateToInterfaceOrientation:UIInterfaceOrientationLandscapeRight
 shouldAutorotateToInterfaceOrientation:UIInterfaceOrientationLandscapeRight
 shouldAutorotateToInterfaceOrientation:UIInterfaceOrientationLandscapeRight
 shouldAutorotateToInterfaceOrientation:UIInterfaceOrientationLandscapeRight
 shouldAutorotateToInterfaceOrientation:UIInterfaceOrientationLandscapeLeft
 shouldAutorotateToInterfaceOrientation:UIInterfaceOrientationLandscapeLeft

所以你可以看到它确实尝试使用

'Initial interface orientation'[UIInterfaceOrientation]

并将其设置为

Landscape (right home button)

但后来切换回数组中的第一个项目

Landscape (left home button)

难道我做错了什么？这是一个简单的SINGLE VIEW Xcode模板项目......只需添加调试代码即可.

Answer 1

尽管有文档,但是UIInterfaceOrientation被忽略了.仅限使用UISupportedInterfaceOrientations.要指定您希望启动哪个,请将其作为第一个列出UISupportedInterfaceOrientations.

然后由您的个人视图控制器来排除他们拒绝采用的任何方向.