Cocoa/Obj-C - TextField到剪贴板按钮

#import <Cocoa/Cocoa.h>

@interface AppDelegate : NSObject <NSApplicationDelegate>

@property (nonatomic, strong) NSWindow *window;
@property (nonatomic, strong) NSTextField *textField;
@property (nonatomic, strong) NSButton *clipboardButton;

@end

@implementation AppDelegate

- (void)applicationDidFinishLaunching:(NSNotification *)aNotification {
    // 创建窗口
    self.window = [[NSWindow alloc] initWithContentRect:NSMakeRect(0, 0, 400, 200)
                                              styleMask:NSWindowStyleMaskTitled | NSWindowStyleMaskClosable
                                                backing:NSBackingStoreBuffered
                                                  defer:NO];
    self.window.title = @"TextField to Clipboard";
    
    // 创建TextField
    self.textField = [[NSTextField alloc] initWithFrame:NSMakeRect(20, 100, 200, 30)];
    [self.window.contentView addSubview:self.textField];
    
    // 创建按钮
    self.clipboardButton = [[NSButton alloc] initWithFrame:NSMakeRect(240, 100, 120, 30)];
    [self.clipboardButton setTitle:@"Copy to Clipboard"];
    [self.clipboardButton setTarget:self];
    [self.clipboardButton setAction:@selector(copyToClipboard:)];
    [self.window.contentView addSubview:self.clipboardButton];
    
    [self.window makeKeyAndOrderFront:nil];
}

- (void)copyToClipboard:(id)sender {
    // 获取TextField中的文本内容
    NSString *text = self.textField.stringValue;
    
    // 将文本内容复制到剪贴板
    NSPasteboard *pasteboard = [NSPasteboard generalPasteboard];
    [pasteboard clearContents];
    [pasteboard writeObjects:@[text]];
    
    NSLog(@"Copied to clipboard: %@", text);
}

@end

int main(int argc, const char * argv[]) {
    @autoreleasepool {
        AppDelegate *delegate = [[AppDelegate alloc] init];
        NSApplication.sharedApplication.delegate = delegate;
        [NSApplication.sharedApplication run];
    }
    return 0;
}