【代码笔记】iOS-自定义选择框

来源：互联网发布：苹果cms 整合 ck 解析编辑：程序博客网时间：2024/06/05 15:19

一，效果图。

二，工程图。

三，代码。

RootViewController.h

#import <UIKit/UIKit.h>#import "CYCustomMultiSelectPickerView.h"@interface RootViewController : UIViewController<CYCustomMultiSelectPickerViewDelegate>{    CYCustomMultiSelectPickerView *multiPickerView;    UILabel *pickLabel;}@end

RootViewController.m

#import "RootViewController.h"@interface RootViewController ()@end@implementation RootViewController- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil{    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];    if (self) {        // Custom initialization    }    return self;}- (void)viewDidLoad{    [super viewDidLoad];    // Do any additional setup after loading the view.            self.title=@"ALPickerView";        pickLabel=[[UILabel alloc]initWithFrame:CGRectMake(10, 100, 100, 50)];    pickLabel.backgroundColor=[UIColor orangeColor];    pickLabel.textAlignment=NSTextAlignmentCenter;    [self.view addSubview:pickLabel];}//随意点击任意处，弹出选择框-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{    [self initPickerView];}-(void)initPickerView{    for (UIView *view in self.view.subviews) {        if ([view isKindOfClass:[CYCustomMultiSelectPickerView class]]) {            [view removeFromSuperview];        }    }        multiPickerView = [[CYCustomMultiSelectPickerView alloc] initWithFrame:CGRectMake(0,[UIScreen mainScreen].bounds.size.height - 260-20, 320, 260+44)];    multiPickerView.backgroundColor = [UIColor clearColor];    multiPickerView.entriesArray = [NSMutableArray arrayWithObjects:@"one",@"two",@"three",@"four",@"five",@"six",@"seven", nil];    multiPickerView.entriesSelectedArray = [NSMutableArray arrayWithObject:@"one"];    multiPickerView.multiPickerDelegate = self;        [self.view addSubview:multiPickerView];    [multiPickerView pickerShow];}#pragma -mark  -picker delegate//点击确定要执行的操作-(void)returnChoosedPickerString:(NSMutableArray *)selectedEntriesArr{    NSLog(@"returnChoosedPickerString");        NSMutableArray* newArray = [NSMutableArray array];        for (NSString* str in selectedEntriesArr) {                [newArray addObject:str];    }    NSString *endStr = [newArray componentsJoinedByString:@","];     pickLabel.text=endStr;   }- (void)didReceiveMemoryWarning{    [super didReceiveMemoryWarning];    // Dispose of any resources that can be recreated.}@end

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