IOS点击事件的PickerView和ToolBar

#import "ViewController.h"

@interface ViewController () <UITableViewDataSource,UITableViewDelegate,UIPickerViewDataSource,UIPickerViewDelegate>

@property (nonatomic,strong) UIPickerView *myPickerView;
@property (nonatomic,strong) UIToolbar *myToolBar;

@end

@implementation ViewController

- (void)viewDidLoad {
[super viewDidLoad];
self.myTableView.delegate=self;
self.myTableView.dataSource=self;

self.myPickerView=[[UIPickerView alloc]initWithFrame:CGRectMake(0.0, self.view.frame.size.height-self.myPickerView.frame.size.height-150.0, self.view.frame.size.width, 150.0)];
self.myPickerView.backgroundColor=[UIColor whiteColor];
self.myPickerView.delegate=self;
self.myPickerView.dataSource=self;

self.myToolBar=[[UIToolbar alloc] initWithFrame:CGRectMake(0.0, self.view.frame.size.height - self.myToolBar.frame.size.height - 44.0-self.myPickerView.frame.size.height, self.view.frame.size.width, 44.0)];

UIBarButtonItem *finishBtn=[[UIBarButtonItem alloc]initWithTitle:@"完成" style:UIBarButtonItemStyleDone target:self action:@selector(finishAction)];
UIBarButtonItem *cancelBtn=[[UIBarButtonItem alloc]initWithTitle:@"取消" style:UIBarButtonItemStyleDone target:self action:@selector(cancelAction)];
UIBarButtonItem *flexible=[[UIBarButtonItem alloc]initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:self action:nil];
UIBarButtonItem *leastTime=[[UIBarButtonItem alloc]initWithTitle:@"时间选择" style:UIBarButtonItemStyleDone target:self action:nil];
[leastTime setEnabled:NO];

NSArray *btnArr=[[NSArray alloc]initWithObjects:cancelBtn,flexible,leastTime,flexible,finishBtn, nil];
[self.myToolBar setItems:btnArr];

}

-(void)cancelAction{
[self.myToolBar removeFromSuperview];
[self.myPickerView removeFromSuperview];
}

-(void)finishAction{
[self.myToolBar removeFromSuperview];
[self.myPickerView removeFromSuperview];
}

-(NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component{
return 5;
}

-(NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component{
return @"sdfs";
}

-(NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView{
return 1;
}

-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{
UITableViewCell *cell=[[UITableViewCell alloc]initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:nil];
cell.textLabel.text=@"asda";
return cell;
}

-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{
return 20;
}

-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{
switch (indexPath.row) {
case 0:
NSLog(@"click...");
[self.view addSubview:self.myToolBar];
[self.view addSubview:self.myPickerView];
break;

default:
break;
}
}

@end