2016 - 1 - 3 国旗选择demo

//
//  ViewController.m
//  国旗
//
//  Created by Mac on 16/1/3.
//  Copyright © 2016年 Mac. All rights reserved.
//

#import "ViewController.h"
#import "FlagView.h"
#import "CZFlag.h"

@interface ViewController ()<UIPickerViewDataSource,UIPickerViewDelegate>
@property (nonatomic, strong)NSArray *flags;

@end

@implementation ViewController
- (NSArray *)flags
{
    if (!_flags) {
      NSArray *array =  [CZFlag flagList];
        _flags = array;
    }
    return  _flags;
}

- (void)viewDidLoad {
    [super viewDidLoad];
//    NSLog(@"%@",self.flags);
}

#pragma mark - 数据源方法
- (NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView
{
    return ;
}
- (NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component
{
    return ;
}
#pragma mark - 代理方法
//设置 控件的内容方法
- (UIView *)pickerView:(UIPickerView *)pickerView viewForRow:(NSInteger)row forComponent:(NSInteger)component reusingView:(UIView *)view
{
    FlagView *flagView =(FlagView *)view;
    if (!flagView) {
        flagView = [FlagView flagView];
    }

    #warning 一般设置自定义的view的大小的时候 不直接使用frame与bounds.
    flagView.bounds = CGRectMake(, , , );
    flagView.flag = self.flags[row];
    return flagView;
}

//

@end

以上为ViewController中的代码

FlagView中的代码：

#import <UIKit/UIKit.h>
#import "CZFlag.h"
@interface FlagView : UIView
@property (weak, nonatomic) IBOutlet UIImageView *iconView;
@property (weak, nonatomic) IBOutlet UILabel *nameView;
@property (nonatomic,  strong) CZFlag *flag;
+ (instancetype )flagView;
@end

//.m中
#import "FlagView.h"
@implementation FlagView
+ (instancetype )flagView
{
    return [[[NSBundle mainBundle] loadNibNamed:@"FlagView" owner:nil options:nil] lastObject];
}
- (void)setFlag:(CZFlag *)flag
{
    self.nameView.text = flag.name;
    self.iconView.image = [UIImage imageNamed:flag.icon];
}
@end

CZFlag中

#import <Foundation/Foundation.h>

@interface CZFlag : NSObject
@property (nonatomic, copy)NSString *name;
@property (nonatomic, copy)NSString *icon;
+ (NSArray *)flagList;
- (instancetype)initWithDic:(NSDictionary *)dic;
+ (instancetype)flagWithDic:(NSDictionary *)dic;
@end
//.m中
#import "CZFlag.h"
@implementation CZFlag
- (instancetype)initWithDic:(NSDictionary *)dic
{
    if (self = [super init]) {
        [self setValuesForKeysWithDictionary:dic];
    }
     return self;
}
+ (instancetype)flagWithDic:(NSDictionary *)dic
{
  CZFlag *flag =  [[CZFlag alloc] initWithDic:dic];
    return flag;
}
+ (NSArray *)flagList
{
    NSString *path = [[NSBundle mainBundle] pathForResource:@"flags" ofType:@"plist"];
    NSMutableArray *tmpArray = [NSMutableArray array];
    NSArray *dicArray = [NSArray arrayWithContentsOfFile:path];
    for (NSDictionary *dic in dicArray) {
     CZFlag *flag =  [CZFlag flagWithDic:dic];
        [tmpArray addObject:flag];
    }
    return tmpArray;
}
@end

效果如下