我已经以编程方式创建了一个NSPopUpButton,并为自己的选择创建了一个数组,如何为每个单独的数组选择创建一个setAction?谢谢!
NSRect buttonRect = NSMakeRect(1705, 145, 78, 50);
//Button Array. When I pick the choice it closes the diologue box
NSArray *newArray;
NSString *color1 = @"Blue Color";
NSString *color2 = @"Green Color";
NSString *color3 = @"Clear Color";
newArray = [NSArray arrayWithObjects: color1, color2, color3, nil];
NSPopUpButton *button = [[NSPopUpButton alloc] initWithFrame:buttonRect pullsDown:YES];
[self addSubview:button];
[button addItemsWithTitles:newArray];
//want my action for each individual string
[button setAction:@selector(changeFilterColor)];
-(void) changeFilterColor
{
NSLog(@"colorChanged");
}
最佳答案
您需要将NSMenuDelegate
协议添加到您的接口(.h文件):
@interface MyClass : NSObject <NSMenuDelegate>
然后:
[[button menu]setDelegate:self];
创建
NSPopUpButton
之后。另外,用setAction:
删除该行。复制此委托方法:
-(void)menu:(NSMenu *)menu willHighlightItem:(NSMenuItem *)item
{
if ([item.title isEqualToString:@"Blue Color"]) { ... } //etc
}
添加必要的if语句以完成比较。