[Cocoa]_[NSScrollView]_[界面切换]

    总结通过一个类来管理各个界面之间的切换，这样程序用到哪些界面，之间的逻辑关系都会比较清晰，我们有两种方法。

    我的例子是创建3个带.xib文件的NSViewController，在主类中通过NSScrollView类型的变量来切换不同的界面，比如在主类窗口里面拖动一个ScrollView并绑定到该变量中，我这里主类用默认的AppDelegate，还要把主类的指针传递给各个界面。下面是例子代码：

方法一：传self

view1.h

#import <Cocoa/Cocoa.h>@interface view1 : NSViewController{    id mainDelegate;}-(void) sethandle:(id) handle;-(IBAction)SwitchToView2:(id)sender;-(IBAction)SwitchToView3:(id)sender;@end

view1.m

#import "View1.h"#import "AppDelegate.h"@interface view1 ()@end@implementation view1- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil{    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];    if (self) {        // Initialization code here.    }        return self;}-(void) sethandle:(id) handle{    mainDelegate = handle;}-(IBAction)SwitchToView2:(id)sender{    [mainDelegate performSelectorOnMainThread:@selector(SwitchToView2) withObject:nil waitUntilDone:NO];}-(IBAction)SwitchToView3:(id)sender{    [mainDelegate performSelectorOnMainThread:@selector(SwitchToView3) withObject:nil waitUntilDone:NO];}@end

view2.h

#import <Cocoa/Cocoa.h>@interface view2 : NSViewController{    id mainDelegate;}-(void) sethandle:(id) handle;-(IBAction)SwitchToView3:(id)sender;-(IBAction)SwitchToView1:(id)sender;@end

view2.m

#import "view2.h"@interface view2 ()@end@implementation view2- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil{    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];    if (self) {        // Initialization code here.    }        return self;}-(void) sethandle:(id) handle{    mainDelegate = handle;}-(IBAction)SwitchToView3:(id)sender{    [mainDelegate performSelectorOnMainThread:@selector(SwitchToView3) withObject:nil waitUntilDone:NO];}-(IBAction)SwitchToView1:(id)sender{    [mainDelegate performSelectorOnMainThread:@selector(SwitchToView1) withObject:nil waitUntilDone:NO];}@end

view3.h

#import <Cocoa/Cocoa.h>@interface view3 : NSViewController{    id mainDelegate;}-(void) sethandle:(id) handle;-(IBAction)SwitchToView2:(id)sender;-(IBAction)SwitchToView1:(id)sender;@end

view3.m

#import "view3.h"@interface view3 ()@end@implementation view3- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil{    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];    if (self) {        // Initialization code here.    }        return self;}-(void) sethandle:(id) handle{    mainDelegate = handle;}-(IBAction)SwitchToView2:(id)sender{    [mainDelegate performSelectorOnMainThread:@selector(SwitchToView2) withObject:nil waitUntilDone:NO];}-(IBAction)SwitchToView1:(id)sender{    [mainDelegate performSelectorOnMainThread:@selector(SwitchToView1) withObject:nil waitUntilDone:NO];}@end

AppDelegate.h

#import <Cocoa/Cocoa.h>@class view1;@class view2;@class view3;@interface AppDelegate : NSObject <NSApplicationDelegate>{    IBOutlet NSScrollView *scrollView;        view1 *scrollView1;    view2 *scrollView2;    view3 *scrollView3;}-(void) SwitchToView1;-(void) SwitchToView2;-(void) SwitchToView3;@property (assign) IBOutlet NSWindow *window;@end

AppDelegate.m

#import "AppDelegate.h"#import "view1.h"#import "view2.h"#import "view3.h"@implementation AppDelegate- (void)applicationDidFinishLaunching:(NSNotification *)aNotification{    // Insert code here to initialize your application}-(void)awakeFromNib{    scrollView1 = [[view1 alloc] initWithNibName:@"view1" bundle:nil];    scrollView2 = [[view2 alloc] initWithNibName:@"view2" bundle:nil];    scrollView3 = [[view3 alloc] initWithNibName:@"view3" bundle:nil];        [scrollView1 sethandle:self];    [scrollView2 sethandle:self];    [scrollView3 sethandle:self];        [scrollView setDocumentView:scrollView1.view];}-(void) SwitchToView1{    [scrollView setDocumentView:scrollView1.view];}-(void) SwitchToView2{    [scrollView setDocumentView:scrollView2.view];}-(void) SwitchToView3{    [scrollView setDocumentView:scrollView3.view];}@end

效果：

view1-view2:

代码例子下载链接：http://download.csdn.net/detail/yepeng2014/9149981

方法二：基于Document-Base Application

1.创建工程，勾选 Create Document-Base Application

2.自定义类：ManagingViewController

ManagingViewController.h

#import <Cocoa/Cocoa.h>@interface ManagingViewController : NSViewController{    NSManagedObjectContext *manageObjectContext;}@property (retain) NSManagedObjectContext *manageObjectContext;@end

ManagingViewController.m

#import "ManagingViewController.h"@interface ManagingViewController ()@end@implementation ManagingViewController@synthesize manageObjectContext;- (void)viewDidLoad {    [super viewDidLoad];    // Do view setup here.}@end

3.创建两个继承ManagingViewController并带xib的类：DepartmentViewController 和 EmployeeViewController,两个类中不添加代码，只是区别下xib的view

DepartmentViewController的view：

EmployeeViewController的view：

4.Document类：

Document.h

#import <Cocoa/Cocoa.h>@interface Document : NSPersistentDocument{    IBOutlet NSBox *box;    IBOutlet NSPopUpButton *popUp;    NSMutableArray *viewControllers;}- (IBAction)DepartmentViewController:(id)sender;- (IBAction)EmployeeViewController:(id)sender;@end

Document.m

#import "Document.h"#import "DepartmentViewController.h"#import "EmployeeViewController.h"@interface Document ()@end@implementation Document- (instancetype)init {    self = [super init];    if (self) {        // Add your subclass-specific initialization here.        viewControllers = [[NSMutableArray alloc] init];                ManagingViewController *vc;                vc = [[DepartmentViewController alloc] init];        [vc setManageObjectContext:[self managedObjectContext]];        [viewControllers addObject:vc];                vc = [[EmployeeViewController alloc] init];        [vc setManageObjectContext:[self managedObjectContext]];        [viewControllers addObject:vc];    }    return self;}- (IBAction)DepartmentViewController:(id)sender{    NSView *v = [[viewControllers objectAtIndex:0] view];    [box setContentView:v];}- (IBAction)EmployeeViewController:(id)sender{    NSView *v = [[viewControllers objectAtIndex:1] view];    [box setContentView:v];}- (void)windowControllerDidLoadNib:(NSWindowController *)aController {    [super windowControllerDidLoadNib:aController];    // Add any code here that needs to be executed once the windowController has loaded the document's window.}+ (BOOL)autosavesInPlace {    return YES;}- (NSString *)windowNibName {    // Override returning the nib file name of the document    // If you need to use a subclass of NSWindowController or if your document supports multiple NSWindowControllers, you should remove this method and override -makeWindowControllers instead.    return @"Document";}- (NSData *)dataOfType:(NSString *)typeName error:(NSError **)outError {    // Insert code here to write your document to data of the specified type. If outError != NULL, ensure that you create and set an appropriate error when returning nil.    // You can also choose to override -fileWrapperOfType:error:, -writeToURL:ofType:error:, or -writeToURL:ofType:forSaveOperation:originalContentsURL:error: instead.    [NSException raise:@"UnimplementedMethod" format:@"%@ is unimplemented", NSStringFromSelector(_cmd)];    return nil;}- (BOOL)readFromData:(NSData *)data ofType:(NSString *)typeName error:(NSError **)outError {    // Insert code here to read your document from the given data of the specified type. If outError != NULL, ensure that you create and set an appropriate error when returning NO.    // You can also choose to override -readFromFileWrapper:ofType:error: or -readFromURL:ofType:error: instead.    // If you override either of these, you should also override -isEntireFileLoaded to return NO if the contents are lazily loaded.    [NSException raise:@"UnimplementedMethod" format:@"%@ is unimplemented", NSStringFromSelector(_cmd)];    return YES;}

xib文件：

效果：

代码例子下载：http://download.csdn.net/detail/yepeng2014/9211931