在一个UIView中如何使用多个UIPickerView

可以现在storyboard的UIView中拖入多个UIPickerView

然后同样是继承相关的UIPickerView协议

<UIPickerViewDataSource,UIPickerViewDelegate>

接着重写相关方法，在里面加入if判断即可

如下：

 1 - (void)viewDidLoad
 2 {
 3     [super viewDidLoad];
 4     
 5     _checkItemArray=[NSArray arrayWithObjects:@"十二导常规心电",@"test", nil];
 6     _applyArray=[NSArray arrayWithObjects:@"ECG",@"TEST", nil];
 7     _applyDocArray=[NSArray arrayWithObjects:@"工程师", @"test",nil];
 8     
 9     self.checkItemPicker.dataSource=self;
10     self.applyPicker.dataSource=self;
11     self.applyDocPicker.dataSource=self;
12     
13     self.checkItemPicker.delegate=self;
14     self.applyPicker.delegate=self;
15     self.applyDocPicker.delegate=self;
16     
17 }
18 
19 -(NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView
20 {
21     return 1;
22 }
23 
24 -(NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component
25 {
26     if (pickerView==self.checkItemPicker)
27     {
28         return _checkItemArray.count;
29     }
30     else
31         if (pickerView==self.applyPicker)
32         {
33             return _applyArray.count;
34         }
35         else
36         {
37             return _applyDocArray.count;
38         }
39 }
40 
41 -(UIView*)pickerView:(UIPickerView*)pickerView viewForRow:(NSInteger)row forComponent:(NSInteger)component reusingView:(UIView *)view
42 {
43     UILabel *myView=nil;
44     
45     myView=[[UILabel alloc]initWithFrame:CGRectMake(0.0, 0.0, 264, 30)];
46     myView.textAlignment=NSTextAlignmentRight;
47     
48     if (pickerView==self.checkItemPicker) {
49         myView.text=[_checkItemArray objectAtIndex:row];
50         
51     }else if(pickerView==self.applyPicker){
52         myView.text=[_applyArray objectAtIndex:row];
53     }else{
54         myView.text=[_applyDocArray objectAtIndex:row];
55     }
56     myView.font=[UIFont systemFontOfSize:17];
57     myView.textColor=[UIColor blackColor];
58     myView.backgroundColor=[UIColor clearColor];
59     return  myView;
60     
61 }

 

posted @ 2014-04-09 09:49  dongweiq  阅读(873)  评论(0)  编辑  收藏  举报