• 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

    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

    版权声明:本文为博主原创文章,未经博主允许不得转载。 https://blog.csdn.net/moqj_123/article/details/45341071

    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.

    //  Copyright (c) 2015 mac-d. All rights reserved.

    //

    #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

    pastedGraphic.png

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

    运行结果:

    pastedGraphic_1.png

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  • 原文地址:https://www.cnblogs.com/sundaymac/p/10337405.html
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