NSWindowController 多个窗口之间传递值

NSWindowController 多个窗口之间传递值

主界面一个按钮点击，出现另一个窗口，然后输入123，点OK，在主界面的编辑框内可以得到123这个值，

思路：

由于要给主界面的控件赋值，所以在第二个窗口里面设定一个同类型的变量。

然后主界面的控件 = 第二个窗口的同类型变量。

例如：主界面是

NSTextField 控件1，

那么就在子窗口里面设定这样一个变量（NSTextField a1），给值。

然后在主界面调用时，让主界面的NSTextField 控件1 =a1

这样主界面就可以得到子界面的值了。

子界面代码如下

H文件

////  Form1.h//  test_multi_window////  Created by EDU on 3/6/14.//  Copyright (c) 2014 EDU. All rights reserved.//#import <Cocoa/Cocoa.h>@interface Form1 : NSWindowController@property (assign) IBOutlet NSWindow *window_form1;@property (assign) NSInteger *button_ok_flag;@property (assign) NSString *button_string;@property (assign) IBOutlet NSTextField *m_Edit1;@property (assign) IBOutlet NSTextField *form_main;@property (assign) IBOutlet NSTextField *form_main_m_ET1;@property bool form_ok_cancel_result;-(void)get_value;@end

M文件

////  Form1.m//  test_multi_window////  Created by  on 3/6/14.//  Copyright (c) 2014 EDU. All rights reserved.//#import "Form1.h"#import "EDUAppDelegate.h"@interface Form1 ()@end@implementation Form1@synthesize form_main;@synthesize form_main_m_ET1;@synthesize window_form1;@synthesize button_ok_flag;@synthesize button_string;@synthesize m_Edit1;@synthesize form_ok_cancel_result;- (id)initWithWindow:(NSWindow *)window{    NSLog (@"init()");        self = [super initWithWindow:window];    if (self)    {           }        return self;}- (void)windowDidLoad{    [super windowDidLoad];    }- (IBAction)OnBT_OK:(id)sender{    form_main.stringValue = @"OK";    form_ok_cancel_result = true;    [self get_value];    [super close];}- (IBAction)OnBT_Cancel:(id)sender{    form_main.stringValue = @"CANCEL";    form_ok_cancel_result = false;    [self get_value];    [super close];}-(void)get_value{    form_main_m_ET1.stringValue = m_Edit1.stringValue;}@end

主窗口代码如下

H文件

////  EDUAppDelegate.h//  test_multi_window////  Created by  on 3/6/14.//  Copyright (c) 2014 EDU. All rights reserved.//#import <Cocoa/Cocoa.h>#import "Form1.h"@interface EDUAppDelegate : NSObject <NSApplicationDelegate>@property (assign) Form1 *m_form1;@property (assign) IBOutlet NSWindow *window;@property (assign) IBOutlet NSTextField *m_label1;@property (assign) IBOutlet NSTextField *m_ET1;@end

M文件

////  EDUAppDelegate.m//  test_multi_window////  Created by EDU on 3/6/14.//  Copyright (c) 2014 EDU. All rights reserved.//#import "EDUAppDelegate.h"@implementation EDUAppDelegate@synthesize m_form1;@synthesize m_label1;@synthesize window;@synthesize m_ET1;- (void)dealloc{    [super dealloc];}- (void)applicationDidFinishLaunching:(NSNotification *)aNotification{    // Insert code here to initialize your application}- (IBAction)OnBT_Form1:(id)sender{    if(!m_form1)    {        m_form1 = [[Form1 alloc] initWithWindowNibName:@"Form1"];    }    m_form1.window.title = @"Hello,this is a test";    m_form1.form_main = m_label1;    m_form1.form_main_m_ET1=m_ET1;    [m_form1 showWindow: sender];}@end

运行编译OK

如图：

完成！