特性
- 新建一个新的window窗口,与之前的创建没有任何关联
- 可以自定义新窗口大小,位置等样式
- 旧窗口可以关闭,也可以不关闭
代码
核心代码
#import <Cocoa/Cocoa.h>
@interface BaseWindowController : NSWindowController
@property (nonatomic, weak) NSViewController *rootViewController;
- (instancetype)initWithRootViewController:(NSViewController *)rootViewController;
@end
#import "BaseWindowController.h"
@interface BaseWindowController ()
@end
@implementation BaseWindowController
- (instancetype)initWithRootViewController:(NSViewController *)rootViewController
{
self = [super init];
if (self) {
self.window = [[NSWindow alloc] initWithContentRect:NSMakeRect(0, 0, 400, 400) styleMask:(NSWindowStyleMaskTitled) backing:(NSBackingStoreBuffered) defer:YES];
self.window.windowController = self;
self.window.movableByWindowBackground = YES;
self.rootViewController = rootViewController;
self.contentViewController = self.rootViewController;
}
return self;
}
@end
窗口
#import "BaseWindowController.h"
@interface HomeWindowController : BaseWindowController
@end
#import "HomeWindowController.h"
@interface HomeWindowController ()
@end
@implementation HomeWindowController
- (void)windowDidLoad {
[super windowDidLoad];
// Implement this method to handle any initialization after your window controller's window has been loaded from its nib file.
}
@end
控制器
#import "BaseViewController.h"
@interface HomeViewController : NSViewController
@end
#import "HomeViewController.h"
@implementation HomeViewController
@end
弹出代码
- (IBAction)openNewWindoAction:(NSButton *)sender
{
HomeViewController *vc = [[HomeViewController alloc] init];
HomeWindowController *newWindow = [[HomeWindowController alloc] initWithRootViewController:vc];
[newWindow showWindow:self];
}
报错
2018-11-12 15:31:40.833165+0800 CodeM[7339:233677] [General] -[NSNib _initWithNibNamed:bundle:options:] could not load the nibName: HomeViewController in bundle (null).
2018-11-12 15:31:40.836634+0800 CodeM[7339:233677] [General] (
0 CoreFoundation 0x00007fff4aa3b2db __exceptionPreprocess + 171
1 libobjc.A.dylib 0x00007fff71bf0c76 objc_exception_throw + 48
2 CoreFoundation 0x00007fff4aaccd7d +[NSException raise:format:] + 205
3 AppKit 0x00007fff4801b24c -[NSNib _initWithNibNamed:bundle:options:] + 634
4 AppKit 0x00007fff4801af82 -[NSViewController _nibWithName:bundle:] + 182
5 AppKit 0x00007fff4801ab84 -[NSViewController loadView] + 139
6 AppKit 0x00007fff47f92a9e -[NSViewController _loadViewIfRequired] + 75
7 AppKit 0x00007fff47f92a09 -[NSViewController view] + 30
8 AppKit 0x00007fff48111365 -[NSWindow _contentViewControllerChanged] + 109
9 AppKit 0x00007fff48a8e677 -[NSWindowController setContentViewController:] + 135
10 CodeM 0x0000000100002c7a -[BaseWindowController initWithRootViewController:] + 650
11 CodeM 0x0000000100005819 -[HomeViewController createFileAction:] + 121
12 AppKit 0x00007fff486e8a43 -[NSApplication(NSResponder) sendAction:to:from:] + 312
13 AppKit 0x00007fff4818e53f -[NSControl sendAction:to:] + 86
14 AppKit 0x00007fff4818e467 __26-[NSCell _sendActionFrom:]_block_invoke + 136
15 AppKit 0x00007fff4818e36d -[NSCell _sendActionFrom:] + 183
16 AppKit 0x00007fff481cf688 -[NSButtonCell _sendActionFrom:] + 97
17 AppKit 0x00007fff4818cbd6 -[NSCell trackMouse:inRect:ofView:untilMouseUp:] + 2438
18 AppKit 0x00007fff481cf3cf -[NSButtonCell trackMouse:inRect:ofView:untilMouseUp:] + 777
19 AppKit 0x00007fff4818b670 -[NSControl mouseDown:] + 965
20 AppKit 0x00007fff48887d6d -[NSWindow(NSEventRouting) _handleMouseDownEvent:isDelayedEvent:] + 5891
21 AppKit 0x00007fff488849c4 -[NSWindow(NSEventRouting) _reallySendEvent:isDelayedEvent:] + 2359
22 AppKit 0x00007fff48883c70 -[NSWindow(NSEventRouting) sendEvent:] + 497
23 AppKit 0x00007fff486e5236 -[NSApplication(NSEvent) sendEvent:] + 2462
24 AppKit 0x00007fff47f458b5 -[NSApplication run] + 812
25 AppKit 0x00007fff47f14a72 NSApplicationMain + 804
26 CodeM 0x0000000100007a42 main + 34
27 libdyld.dylib 0x00007fff7280a015 start + 1
28 ??? 0x0000000000000003 0x0 + 3
)
分析
2018-11-12 15:31:40.833165+0800 CodeM[7339:233677] [General] -[NSNib _initWithNibNamed:bundle:options:] could not load the nibName: HomeViewController in bundle (null).
根据这个报错信息,意思就是说 HomeViewController 这个类的实例没有获取到,而且是是<u>使用了NSNib初始化方法加载</u>,这就意味着有两种解决方案
解决
方法一
在创建HomeViewController类的时候,勾选xib选项,即使用xib方式创建
方法二
- (instancetype)initWithNibName:(NSNibName)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self.view = [[NSView alloc] initWithFrame:NSMakeRect(0, 0, 400, 400)];
return [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
}
上面提到过,旧的窗口可以关闭
- (IBAction)openNewWindoAction:(NSButton *)sender
{
HomeViewController *vc = [[HomeViewController alloc] init];
HomeWindowController *newWindow = [[HomeWindowController alloc] initWithRootViewController:vc];
[self.view.window close];
[newWindow showWindow:self];
}
