在连接到iPad的外部屏幕上滚动UIScrollView_Ipad_Uiscrollview_Screen_External_Television

在连接到iPad的外部屏幕上滚动UIScrollView

ipad

在连接到iPad的外部屏幕上滚动UIScrollView,ipad,uiscrollview,screen,external,television,Ipad,Uiscrollview,Screen,External,Television,嘿。我已经通过缩放实现了编程的UIScrollView，但现在我一直在尝试将可滚动/可缩放的图像插入外部屏幕（如果插入） @implementation MapVC UIScrollView *mapScrollView; UIImageView *mapImageView; UIImageView *mapImageViewEx; CGFloat lastScale = 0; NSMutableArray *map_List; - (id)initWithFrame:(CGRec

嘿。我已经通过缩放实现了编程的UIScrollView，但现在我一直在尝试将可滚动/可缩放的图像插入外部屏幕（如果插入）

@implementation MapVC

UIScrollView *mapScrollView;

UIImageView *mapImageView;

UIImageView *mapImageViewEx;

CGFloat lastScale = 0;

NSMutableArray *map_List;


- (id)initWithFrame:(CGRect)frame {

    self = [super initWithFrame:frame];
    if (self) {

        mainMenuAppDelegate *del = (mainMenuAppDelegate *)[[UIApplication sharedApplication] delegate];

        map_List = [[NSMutableArray alloc] init];
        [map_List addObject:@"Pacific_Map.png"];
        [map_List addObject:@"Atlantic_Map.png"];


        CGRect mapScrollViewFrame = CGRectMake(0, 0, 1024, 768);

        mapScrollView = [[UIScrollView alloc] initWithFrame:mapScrollViewFrame];

        mapScrollView.backgroundColor = [UIColor blackColor];

        [mapScrollView setDelegate:(id<UIScrollViewDelegate>)self];

        mapScrollView.contentSize = CGSizeMake(2437, 1536);

        mapScrollView.bounces = NO;

        mapScrollView.bouncesZoom = NO;

        mapScrollView.minimumZoomScale = .5;

        mapScrollView.maximumZoomScale = 1.5;

        [mapScrollView setZoomScale:mapScrollView.minimumZoomScale];

        UIImage *mapImage = [UIImage imageNamed:[map_List objectAtIndex:mapNum]];
        mapImageView = [[UIImageView alloc] initWithImage: mapImage];
        [mapImage release];

        if(exScreenEnabled==1){
            UIImage *mapImageEx = [UIImage imageNamed:[map_List objectAtIndex:mapNum]];
            mapImageViewEx = [[UIImageView alloc] initWithImage: mapImageEx];
            [mapImageEx release];

            UIView *containerExViewP = (UIView*)[del.switchExVC.view viewWithTag:9000];
            [containerExViewP addSubview:mapImageViewEx];
        }else{
            [mapScrollView addSubview:mapImageView];
        }



        [self addSubview:mapScrollView];

        mapImageView.userInteractionEnabled = YES;



        UIImage *footerMapIMG = [UIImage imageNamed:@"footer_map_alternate.png"];
        UIImageView *footerMapView = [[UIImageView alloc] initWithImage:(UIImage *)footerMapIMG];
        CGRect footerMapFrame = CGRectMake(0, 686, 213, 82);
        footerMapView.frame = footerMapFrame;
        [self addSubview:footerMapView]; 
        footerMapView.image = footerMapIMG; 

        [footerMapView release];


        CGRect backBTNFrame = CGRectMake(20, 714, 140, 52); 
        UIButton *MAP_backButton = [[UIButton alloc] init];
        MAP_backButton.frame = backBTNFrame;
        UIImage *MAP_backButtonIMG = [UIImage imageNamed:@"button_back.png"];
        [MAP_backButton setImage:MAP_backButtonIMG forState:UIControlStateNormal];
        MAP_backButton.backgroundColor = [UIColor clearColor];
        [self addSubview:MAP_backButton];

        [MAP_backButton release];


        [MAP_backButton addTarget:del.switchVC 
                           action:@selector(gotoMapAndListChooser)
                       forControlEvents:UIControlEventTouchUpInside];
    }
    return self;
}
- (UIView *)viewForZoomingInScrollView:(UIScrollView *)scrollView{
    if(exScreenEnabled==1){
        return mapImageViewEx;
    }else{
        return mapImageView;
    }
}

@实现MapVC
UIScrollView*地图滚动视图；
UIImageView*mapImageView；
UIImageView*mapImageViewEx；
CGFloat lastScale=0；
NSMutableArray*映射列表；
-（id）initWithFrame:（CGRect）帧{
self=[super initWithFrame:frame]；
如果（自我）{
mainMenuAppDelegate*del=（mainMenuAppDelegate*）[[UIApplication sharedApplication]委托]；
map_List=[[NSMutableArray alloc]init]；
[map_List addObject:@“Pacific_map.png”]；
[map_List addObject:@“Atlantic_map.png”]；
CGRect mapScrollViewFrame=CGRectMake（0,0,1024,768）；
mapScrollView=[[UIScrollView alloc]initWithFrame:mapScrollViewFrame]；
mapScrollView.backgroundColor=[UIColor blackColor]；
[mapScrollView setDelegate:（id）self]；
mapScrollView.contentSize=CGSizeMake（24371536）；
mapScrollView.bounces=否；
mapScrollView.bouncesZoom=否；
mapScrollView.minimumZoomScale=.5；
mapScrollView.maximumZoomScale=1.5；
[mapScrollView设置缩放比例：mapScrollView.minimumZoomScale]；
UIImage*mapImage=[UIImage ImageName:[map_列表对象索引：mapNum]]；
mapImageView=[[UIImageView alloc]initWithImage:mapImage]；
[地图图像发布]；
如果（exScreenEnabled==1）{
UIImage*mapImageEx=[UIImage ImageName:[map_列表对象索引：mapNum]]；
mapImageViewEx=[[UIImageView alloc]initWithImage:mapImageEx]；
[MAPIMAGEX释放]；
UIView*ContainerXViewp=（UIView*）[del.switchExVC.view-viewWithTag:9000]；
[ContainerExView addSubview:mapImageViewEx]；
}否则{
[mapScrollView添加子视图：mapImageView]；
}
[自添加子视图：mapScrollView]；
mapImageView.userInteractionEnabled=是；
UIImage*footerMapIMG=[UIImage ImageName:@“footer\u map\u alternate.png”]；
UIImageView*footerMapView=[[UIImageView alloc]initWithImage:（UIImage*）footerMapIMG]；
CGRect footerMapFrame=CGRectMake（0686213,82）；
footerMapView.frame=footerMapFrame；
[自添加子视图：footerMapView]；
footerMapView.image=footerMapIMG；
[footerMapView发布]；
CGRect backBTNFrame=CGRectMake（20714,140,52）；
UIButton*MAP_backButton=[[UIButton alloc]init]；
MAP_backButton.frame=backBTNFrame；
UIImage*MAP_backButtonIMG=[UIImage ImageName:@“button_back.png”]；
[MAP_backButton setImage:MAP_backButtonIMG for state:UIControlStateNormal]；
MAP_backButton.backgroundColor=[UIColor clearColor]；
[自添加子视图：映射返回按钮]；
[MAP_backButton release]；
[MAP_backButton addTarget:del.switchVC
操作：@选择器（GoToMandListChooser）
forControlEvents:UIControlEventTouchUpInside]；
}
回归自我；
}
-（UIView*）视图用于缩放CrollView:（UICrollView*）滚动视图{
如果（exScreenEnabled==1）{
返回mapImageViewEx；
}否则{
返回mapImageView；
}
}

（很抱歉，我没能将其格式化，使其在本网站上看起来正确）

如果将视频线插入iPad，iPad上就没有图像，这正是我想要的。当你在iPad上做手势时，外部屏幕上的图像会正确缩放，但我不知道如何让它滚动。提前谢谢

编辑：我现在有了这个-

@implementation MapVC

UIScrollView *mapScrollView;

UIImageView *mapImageView;
UIImageView *mapImageViewEx;

CGFloat lastScale = 0;

NSMutableArray *map_List;

int touchesNum = 0;

-(void)touchesBegan:(NSSet *)theTouches withEvent:(UIEvent *)event {
    NSSet *touches = [event allTouches];
    touchesNum=[touches count];
    NSLog(@"number of touches %i", touchesNum);
}


- (id)initWithFrame:(CGRect)frame {

    self = [super initWithFrame:frame];
    if (self) {



        mainMenuAppDelegate *del = (mainMenuAppDelegate *)[[UIApplication sharedApplication] delegate];

        map_List = [[NSMutableArray alloc] init];
        [map_List addObject:@"Pacific_Map.png"];
        [map_List addObject:@"Atlantic_Map.png"];


        CGRect mapScrollViewFrame = CGRectMake(0, 0, 1024, 768);

        mapScrollView = [[UIScrollView alloc] initWithFrame:mapScrollViewFrame];

        mapScrollView.backgroundColor = [UIColor blackColor];

        [mapScrollView setDelegate:(id<UIScrollViewDelegate>)self];

        mapScrollView.contentSize = CGSizeMake(2437, 1536);

        mapScrollView.bounces = NO;

        mapScrollView.bouncesZoom = NO;

        mapScrollView.minimumZoomScale = .5;

        mapScrollView.maximumZoomScale = 1.5;

        [mapScrollView setZoomScale:mapScrollView.minimumZoomScale];

        UIImage *mapImage = [UIImage imageNamed:[map_List objectAtIndex:mapNum]];
        mapImageView = [[UIImageView alloc] initWithImage: mapImage];
        [mapImage release];

        if(exScreenEnabled==1){
            UIImage *mapImageEx = [UIImage imageNamed:[map_List objectAtIndex:mapNum]];
            mapImageViewEx = [[UIImageView alloc] initWithImage: mapImageEx];
            [mapImageEx release];

            UIView *containerExViewP = (UIView*)[del.switchExVC.view viewWithTag:9000];
            [containerExViewP addSubview:mapImageViewEx];
        }else{
            [mapScrollView addSubview:mapImageView];
        }



        [self addSubview:mapScrollView];

        mapImageView.userInteractionEnabled = YES;



        UIImage *footerMapIMG = [UIImage imageNamed:@"footer_map_alternate.png"];
        UIImageView *footerMapView = [[UIImageView alloc] initWithImage:(UIImage *)footerMapIMG];
        CGRect footerMapFrame = CGRectMake(0, 686, 213, 82);
        footerMapView.frame = footerMapFrame;
        [self addSubview:footerMapView]; 
        footerMapView.image = footerMapIMG; 

        [footerMapView release];


        CGRect backBTNFrame = CGRectMake(20, 714, 140, 52); 
        UIButton *MAP_backButton = [[UIButton alloc] init];
        MAP_backButton.frame = backBTNFrame;
        UIImage *MAP_backButtonIMG = [UIImage imageNamed:@"button_back.png"];
        [MAP_backButton setImage:MAP_backButtonIMG forState:UIControlStateNormal];
        MAP_backButton.backgroundColor = [UIColor clearColor];
        [self addSubview:MAP_backButton];

        [MAP_backButton release];


        [MAP_backButton addTarget:del.switchVC 
                           action:@selector(gotoMapAndListChooser)
                       forControlEvents:UIControlEventTouchUpInside];

        mapScrollView.multipleTouchEnabled = YES;
    }
    return self;
}


- (UIView *)viewForZoomingInScrollView:(UIScrollView *)scrollView{
    if(exScreenEnabled==1){
        return mapImageViewEx;
    }else{
        return mapImageView;
    }
}

- (void)scrollViewDidScroll:(UIScrollView *)inscrollView{
    if(touchesNum==0){
        CGPoint p = mapScrollView.contentOffset;
        mapImageViewEx.frame = CGRectMake((p.x*-1), (p.y*-1), mapImageViewEx.frame.size.width, mapImageViewEx.frame.size.height); 
    }
}



- (void)dealloc {

    [mapScrollView release];
    [mapImageView release];

    [map_List release];


    [super dealloc];
}

@end

@实现MapVC
UIScrollView*地图滚动视图；
UIImageView*mapImageView；
UIImageView*mapImageViewEx；
CGFloat lastScale=0；
NSMutableArray*映射列表；
int touchesNum=0；
-（无效）触摸开始：（NSSet*）触摸带事件：（UIEvent*）事件{
NSSet*touchs=[event alltouchs]；
touchesNum=[触摸次数]；
NSLog（@“触摸次数%i”，touchesNum）；
}
-（id）initWithFrame:（CGRect）帧{
self=[super initWithFrame:frame]；
如果（自我）{
mainMenuAppDelegate*del=（mainMenuAppDelegate*）[[UIApplication sharedApplication]委托]；
map_List=[[NSMutableArray alloc]init]；
[map_List addObject:@“Pacific_map.png”]；
[map_List addObject:@“Atlantic_map.png”]；
CGRect mapScrollViewFrame=CGRectMake（0,0,1024,768）；
mapScrollView=[[UIScrollView alloc]initWithFrame:mapScrollViewFrame]；
mapScrollView.backgroundColor=[UIColor blackColor]；
[mapScrollView setDelegate:（id）self]；
mapScrollView.contentSize=CGSizeMake（24371536）；
mapScrollView.bounces=否；
mapScrollView.bouncesZoom=否；
mapScrollView.minimumZoomScale=.5；
mapScrollView.maximumZoomScale=1.5；
[mapScrollView设置缩放比例：mapScrollView.minimumZoomScale]；
UIImage*mapImage=[UIImage ImageName:[map_列表对象索引：mapNum]]；
mapImageView=[[UIImageView alloc]initWithImage:mapImage]；
[地图图像发布]；
如果（exScreenEnabled==1）{
UIImage*mapImageEx=[UIImage ImageName:[map_列表对象索引：mapNum]]；
mapImageViewEx=[[UIImageView alloc]initWithImage:mapImageEx]；
[MAPIMAGEX释放]；
UIView*ContainerXViewp=（UIView*）[del.switchExVC.view-viewWithTag:9000]；
[ContainerExView addSubview:mapImageViewEx]；
}否则{
[mapScrollView添加子视图：mapImageView]；
}
[自添加子视图：mapScrollView]；
mapImageView.userInteractionEnabled=是；
UIImage*footerMapIMG=[UIImage ImageName:@“footer\u map\u alternate.png”]；
UIImageView*footerMapView=[[UIImageView alloc]initWithImage:（UIImage*）footerMapIMG]；
CGRect footerMapFrame=CGRectMake（0686213,82）；
footerMapView.frame=footerMapFrame；
[自添加子视图：footerMapView]；
#import "exGlobal.h"

#import "mapVC.h"

#import "switchVC.h"
#import "switchExVC.h"
#import "mainMenuAppDelegate.h"


#import <MobileCoreServices/MobileCoreServices.h>

@implementation MapVC

UIScrollView *mapScrollView;

UIImageView *mapImageView;
UIImageView *mapImageViewEx;

CGFloat lastScale = 0;

NSMutableArray *map_List;

static int toggleScroll = 1;


- (id)initWithFrame:(CGRect)frame {

    self = [super initWithFrame:frame];
    if (self) {

        mainMenuAppDelegate *del = (mainMenuAppDelegate *)[[UIApplication sharedApplication] delegate];

        map_List = [[NSMutableArray alloc] init];
        [map_List addObject:@"Pacific_Map.png"];
        [map_List addObject:@"Atlantic_Map.png"];


        CGRect mapScrollViewFrame = CGRectMake(0, 0, 1024, 768);

        mapScrollView = [[UIScrollView alloc] initWithFrame:mapScrollViewFrame];

        mapScrollView.backgroundColor = [UIColor blackColor];

        [mapScrollView setDelegate:(id<UIScrollViewDelegate>)self];

        mapScrollView.contentSize = CGSizeMake(2437, 1536);

        mapScrollView.bounces = NO;

        mapScrollView.bouncesZoom = NO;

        mapScrollView.minimumZoomScale = .5;

        mapScrollView.maximumZoomScale = 1.5;

        [mapScrollView setZoomScale:mapScrollView.minimumZoomScale];

        UIImage *mapImage = [UIImage imageNamed:[map_List objectAtIndex:mapNum]];
        mapImageView = [[UIImageView alloc] initWithImage: mapImage];
        [mapImage release];

        if(exScreenEnabled==1){
            UIImage *mapImageEx = [UIImage imageNamed:[map_List objectAtIndex:mapNum]];
            mapImageViewEx = [[UIImageView alloc] initWithImage: mapImageEx];
            [mapImageEx release];

            UIView *containerExViewP = (UIView*)[del.switchExVC.view viewWithTag:9000];
            [containerExViewP addSubview:mapImageViewEx];
            [mapScrollView addSubview:mapImageView]; // see if this works ok on iPad. Map on TV AND iPad.
        }else{
            [mapScrollView addSubview:mapImageView];
        }

        [self addSubview:mapScrollView];

        mapImageView.userInteractionEnabled = YES;


        UIImage *footerMapIMG = [UIImage imageNamed:@"footer_map_alternate.png"];
        UIImageView *footerMapView = [[UIImageView alloc] initWithImage:(UIImage *)footerMapIMG];
        CGRect footerMapFrame = CGRectMake(0, 686, 213, 82);
        footerMapView.frame = footerMapFrame;
        [self addSubview:footerMapView]; 
        footerMapView.image = footerMapIMG; 

        [footerMapView release];


        CGRect backBTNFrame = CGRectMake(20, 714, 140, 52); 
        UIButton *MAP_backButton = [[UIButton alloc] init];
        MAP_backButton.frame = backBTNFrame;
        UIImage *MAP_backButtonIMG = [UIImage imageNamed:@"button_back.png"];
        [MAP_backButton setImage:MAP_backButtonIMG forState:UIControlStateNormal];
        MAP_backButton.backgroundColor = [UIColor clearColor];
        [self addSubview:MAP_backButton];

        [MAP_backButton release];


        [MAP_backButton addTarget:del.switchVC 
                           action:@selector(gotoMapAndListChooser)
                       forControlEvents:UIControlEventTouchUpInside];

        mapScrollView.multipleTouchEnabled = YES;
    }
    return self;
}


- (UIView *)viewForZoomingInScrollView:(UIScrollView *)scrollView{
    return mapImageView;
}

-(void)scrollViewDidZoom:(UIScrollView *)scrollView {
    if(exScreenEnabled==1){
        CGPoint p = mapScrollView.contentOffset;
        mapImageViewEx.frame = CGRectMake((p.x*-1), (p.y*-1), mapImageView.frame.size.width, mapImageView.frame.size.height);
    }
}

- (void)scrollViewDidScroll:(UIScrollView *)inscrollView{   
    if(exScreenEnabled==1 && toggleScroll==1){
        CGPoint p = mapScrollView.contentOffset;
        mapImageViewEx.frame = CGRectMake((p.x*-1), (p.y*-1), mapImageView.frame.size.width, mapImageView.frame.size.height);

    }
}

- (void)scrollViewWillBeginZooming:(UIScrollView *)theScrollView withView:(UIView *)view{
    NSLog(@"BEGIN ZOOMING");
    toggleScroll=0;
}

- (void)scrollViewDidEndZooming:(UIScrollView *)theScrollView withView:(UIView *)view atScale:(float)scale{
    NSLog(@"END ZOOMING");
    toggleScroll=1;
} 




- (void)dealloc {

    [mapScrollView release];
    [mapImageView release];

    [map_List release];

    [super dealloc];
}

@end