UIScrollView显示摄像机

Question

我创建了一个摄像机视图，通过创建AVCaptureVideoPreviewLayer来显示在屏幕上，现在我希望它能够显示在我的滚动视图中。目前我的滚动视图设置为处理UIImageViews，但不是相机层。以下是它们如何一起工作的：

//设置摄像头视图 [self setCaptureManager：[[CaptureManager alloc] init]];

[[self captureManager] addVideoInput]; 

[[self captureManager] addVideoPreviewLayer]; 
CGRect layerRect = [[[self view] layer] bounds]; 
[[[self captureManager] previewLayer] setBounds:layerRect]; 
[[[self captureManager] previewLayer] setPosition:CGPointMake(CGRectGetMidX(layerRect), 
                   CGRectGetMidY(layerRect))]; 
[[[self view] layer] addSublayer:[[self captureManager] previewLayer]]; 

[[captureManager captureSession] startRunning]; 


int PageCount = 2; 
NSMutableArray *arrImageName =[[NSMutableArray alloc]initWithObjects:settingsView,captureManager,nil]; 
UIScrollView *scroller = [[UIScrollView alloc] initWithFrame:CGRectMake(0, 0, 320, 480)]; 
scroller.scrollEnabled=YES; 
scroller.backgroundColor = [UIColor clearColor]; 
[scroller setShowsHorizontalScrollIndicator:NO]; 
scroller.pagingEnabled = YES; 
scroller.bounces = NO; 
scroller.delegate = self; 
[self.view addSubview:scroller]; 
int width=scroller.frame.size.width; 
int xPos=0; 
for (int i=0; i<PageCount; i++) 
{ 
    UIView *view1 = [[UIView alloc]initWithFrame:CGRectMake(xPos, 0, scroller.frame.size.width, scroller.frame.size.height)]; 
    UIView *view2 = [arrImageName objectAtIndex:i]; 
    [view1 addSubview:view2]; 
    [scroller addSubview:view1]; 
    scroller.contentSize = CGSizeMake(width, 0); 
    width +=scroller.frame.size.width; 
    xPos +=scroller.frame.size.width; 
} 

捕获管理器处理AVCaptureVideoPreviewLayer，这一切都正常工作，并自行显示。我试图让它出现在我的scrollView里面，所以我已经注释掉了CGRectlayerRect，而是试图让它在我的数组中显示在scrollView上。在scrollView的底部，我有一个UIImageView正在采取数组并显示它，但是这不会显然工作，因为相机不是图像。我可以改变或研究底部做什么工作？将其更改为UIView？谢谢。

Answer 1

完成循环后，只需在UIScrollView的底部创建并添加UIView（使用正确的位置和矩形）。然后，将视频预览图层添加为添加到scrollView的视图的子图层。祝你好运！

编辑 没关系，试试这个：

[[self captureManager] addVideoInput]; 

[[self captureManager] addVideoPreviewLayer]; 
CGRect layerRect = [[[self view] layer] bounds]; 
[[[self captureManager] previewLayer] setBounds:layerRect]; 
[[[self captureManager] previewLayer] setPosition:CGPointMake(CGRectGetMidX(layerRect), 
                   CGRectGetMidY(layerRect))]; 
UIView *captureView = [[UIView alloc] initWithFrame:self.view.bounds]; 
[[captureView layer] addSublayer:[[self captureManager] previewLayer]]; 

[[captureManager captureSession] startRunning]; 


int PageCount = 2; 
NSMutableArray *arrImageName =[[NSMutableArray alloc]initWithObjects:settingsView,captureView,nil]; 
UIScrollView *scroller = [[UIScrollView alloc] initWithFrame:CGRectMake(0, 0, 320, 480)]; 
scroller.scrollEnabled=YES; 
scroller.backgroundColor = [UIColor clearColor]; 
[scroller setShowsHorizontalScrollIndicator:NO]; 
scroller.pagingEnabled = YES; 
scroller.bounces = NO; 
scroller.delegate = self; 
[self.view addSubview:scroller]; 
int width=scroller.frame.size.width; 
int xPos=0; 
for (int i=0; i<PageCount; i++) 
{ 
    UIView *view1 = [[UIView alloc]initWithFrame:CGRectMake(xPos, 0, scroller.frame.size.width, scroller.frame.size.height)]; 
    UIView *view2 = [arrImageName objectAtIndex:i]; 
    [view1 addSubview:view2]; 
    [scroller addSubview:view1]; 
    scroller.contentSize = CGSizeMake(width, 0); 
    width +=scroller.frame.size.width; 
    xPos +=scroller.frame.size.width; 
}