oc及swift之mac中NSPopUpButton

swift之 PopUPButton控件

Type:有PopUP、PullDown

Arrow： NoArrow Left、Right

Menu Edge：弹出的选择菜单的位置

fileprivate let popUpButton : NSPopUpButton = {

let popUpBtn = NSPopUpButton(frame: NSMakeRect(0, 0, 30, 50))

return popUpBtn

}()

func popUpButtonFunc(){

let items = ["1","2","3"]

//删除初始数据

self.popUpButton.removeAllItems()

//增加数据

self.popUpButton.addItem(withTitle: "4")

self.popUpButton.addItems(withTitles: items)

//设置第一行数据为当前选中的数据

self.popUpButton.selectItem(at: 0)

//添加事件

self.popUpButton.target = self

self.popUpButton.action = #selector(popUpBtnAction(_:))

}

//popUpButton事件

@objc func popUpBtnAction(_ sender: NSPopUpButton){

let items = sender.itemTitles

//当前选择的index

let index = sender.indexOfSelectedItem

//选择的文本内容

let title = items[index]

}

2016.07.28 16:13* 字数 191 阅读 1662评论 2喜欢 4

NSPopUpButton 下拉列表按钮，有两种。一种只有下拉箭头的按钮，另一种是既有上拉，也有下拉。

如果设置只有向下的箭头，这最上面的item 只会出现一次，一旦其他的item选中之后，就找不到第一个item了。所以，一般初始的item是一个不用的提示，比如要选择地区，那么第一个就放城市的提示信息，就行了。
如果既有上拉按钮也有下拉按钮，那么所有的item都会显示在下拉列表框中。

## ****下面以只有下拉箭头的按钮为例进行说明：

// pullsDown 设置为 YES 只有向下的箭头

NSPopUpButton *popBtn = [[NSPopUpButton alloc] initWithFrame:CGRectMake(0, 100, 100, 30) pullsDown:YES];

[popBtn addItemWithTitle:@"城市"];

[popBtn addItemWithTitle:@"上海"];

[popBtn addItemWithTitle:@"广州"];

[popBtn addItemWithTitle:@"深圳"];

[popBtn addItemWithTitle:@"河南"];

[self.view addSubview:popBtn];

// popBtn 的点击事件

[popBtn setTarget:self];

[popBtn setAction:@selector(handlePopBtn:)];

NSPopUpButton 选中item的相应事件:

- (void)handlePopBtn:(NSPopUpButton *)popBtn {

// 选中item 的索引

NSLog(@"%d", popBtn.indexOfSelectedItem);

// [popBtn selectItemAtIndex:popBtn.indexOfSelectedItem];

popBtn.title = popBtn.selectedItem.title;

}

只有下拉按钮.jgp

上拉和下拉按钮都有的效果图

小礼物走一走，来简书关注我

NSPopUpButton创建菜单与子菜单

NSPopUpButton *popup = [[NSPopUpButton alloc] initWithFrame:
NSMakeRect(0, 0, 150, 22)];
id item;
NSMenuItem *menuItem;
NSMenu *submenu;

[popup setAutoenablesItems: NO];

[popup addItemWithTitle: @"Marguerite"];
[[popup itemWithTitle: @"Marguerite"] setEnabled: YES];
[popup addItemWithTitle: @"Julie"];
[[popup itemWithTitle: @"Julie"] setEnabled: YES];
[popup addItemWithTitle: @"Liv"];
[[popup itemWithTitle: @"Liv"] setEnabled: YES];
[popup addItemWithTitle: @"Juliette"];
[[popup itemWithTitle: @"Juliette"] setEnabled: YES];

item = [popup itemWithTitle: @"Julies"];
[popup selectItem: item];

[toolbarItem setLabel: @"Just... popup"];
[toolbarItem setView: popup];

menuItem = [[NSMenuItem alloc] initWithTitle: @"More..."
action: NULL
keyEquivalent: @""];
submenu = [[NSMenu alloc] initWithTitle: @""];
[submenu addItemWithTitle: @"Marguerite"
action: @selector(reflectMenuSelection:)
keyEquivalent: @""];
[submenu addItemWithTitle: @"Julie"
action: @selector(reflectMenuSelection:)
keyEquivalent: @""];
[submenu addItemWithTitle: @"Liv"
action: @selector(reflectMenuSelection:)
keyEquivalent: @""];
[submenu addItemWithTitle: @"Juliette"
action: @selector(reflectMenuSelection:)
keyEquivalent: @""];
[menuItem setSubmenu: AUTORELEASE(submenu)];
[toolbarItem setMenuFormRepresentation: AUTORELEASE(menuItem)];

[Cocoa]_[初级]_[NSPopUpButton重绘实例]

2015年04月28日 19:37:57 Foreveroriginal 阅读数：712

场景：比如说，定义一个支持多种格式的控件，包含下拉菜单进行多种选择.由于标准的控件在界面上布局和自己所需的相差很多，所以要对控件进行重绘。

一下是具体实例：

类似于带下拉菜单的文本编辑框。

// MqjPopUpButton.m

// MqjEditContact

// Created by mac-d on 4/28/15.

#import "MqjPopUpButton.h"

@implementation MqjPopUpButton

- (id)initWithFrame:(NSRect)frame

{

self = [super initWithFrame:frame];

if (self) {

// Initialization code here.

}

return self;

}

-(BOOL) isFlipped

{

return YES;

}

- (void)drawRect:(NSRect)dirtyRect

{

// Drawing code here.

//[super drawRect:dirtyRect];

[[NSColor colorWithCalibratedRed: 255/255.0 green:255/255.0 blue:255/255.0 alpha:1] setFill];

NSRectFill(dirtyRect);

NSString *path =[[NSBundle mainBundle] pathForResource:@"down" ofType:@"png"];

NSImage *image =[[NSImage alloc] initWithContentsOfFile:path];

NSRect rect =NSZeroRect;

rect.size = [image size];

NSPoint p = dirtyRect.origin;

p.x +=dirtyRect.size.width-image.size.width-4;

p.y +=(dirtyRect.size.height-image.size.height)/2;

[image drawInRect:NSMakeRect(p.x, p.y, image.size.width, image.size.height) fromRect:rect operation:NSCompositeSourceOver fraction:1.0 respectFlipped:YES hints:nil];

//画横线

NSBezierPath *line = [NSBezierPath bezierPath];

[line setLineWidth:1];

[[NSColor colorWithCalibratedRed: 147/255.0 green:147/255.0 blue:147/255.0 alpha:0.5] setStroke];

NSPoint endPoint = dirtyRect.origin;

endPoint.x += dirtyRect.size.width;

[line moveToPoint:dirtyRect.origin];

[line lineToPoint:endPoint];

[line stroke];

[line moveToPoint:NSMakePoint(dirtyRect.origin.x, dirtyRect.origin.y+dirtyRect.size.height)];

[line lineToPoint:NSMakePoint(endPoint.x,dirtyRect.origin.y+dirtyRect.size.height)];

[line stroke];

//画竖线

[line moveToPoint:dirtyRect.origin];

[line lineToPoint:NSMakePoint(dirtyRect.origin.x,dirtyRect.origin.y+dirtyRect.size.height)];

[line stroke];

[line moveToPoint:endPoint];

[line lineToPoint:NSMakePoint(endPoint.x,dirtyRect.origin.y+dirtyRect.size.height)];

[line stroke];

//对选中的item设置勾选

NSArray *array = [super itemArray];

for(NSMenuItem *item in array)

{

if (item == [self selectedItem])

{

[item setState:NSOnState];

}

else

{

[item setState:NSOffState];

}

NSString *title =[[super selectedItem] title];

if (title == nil)

{

title = @"";

}

NSLog(@"title:%@",title);

//获取字符串的宽度和高度

NSSize titleSize = [title sizeWithAttributes:[NSDictionary dictionaryWithObject:[self font] forKey:NSFontAttributeName]];

CGFloat titleY = dirtyRect.origin.y + (dirtyRect.size.height - titleSize.height)/2;

NSRect rectTitle = dirtyRect;

rectTitle.origin = NSMakePoint(10, titleY);

rectTitle.size.height = titleSize.height;

[title drawInRect:rectTitle withAttributes:nil];

}

@end

在MainMenu.xib布局一个NSPopUpButton,class:改为如图所示。

运行结果：