Iphone [Tab Bar实现多view切换,Picker,DataPicter实现
用Tab Bar Controller处理IPhone多个view切换,
而且还附有创建空项目,picker和DataPicker的实现!
具体步骤:
1.创建一个空项目,选择User Interface->View,命名为rootView。
2.然后在控件面板中拖一个Tab Bar Controller的控件,可以往里面添加Tab Button,将Tab Bar Controller的File's Owner改成AppDelegate,可以将其每一个Item View的Class属性改成对于的ViewController
3.在Appdelegate.m中设置根view
- - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
- {
- self.window = [[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]] autorelease];
- //通过目录导入xib文件中所有的内容
- NSArray *arr = [[NSBundle mainBundle] loadNibNamed:@"rootView" owner:self options:nil];
- NSLog(@"%@",arr);
- self.window.rootViewController = self.rootView;
- self.window.backgroundColor = [UIColor whiteColor];
- [self.window makeKeyAndVisible];
- return YES;
- }
4.DateViewPicker的实现
dateViewController.h:
- #import <UIKit/UIKit.h>
- @interface dataViewController : UIViewController
- @property (retain, nonatomic) IBOutlet UIDatePicker *datePicker;
- - (IBAction)click:(id)sender;
- @property (retain, nonatomic) IBOutlet UILabel *lblShow;
- @end
dateViewController.m:
- #import "dataViewController.h"
- @interface dataViewController ()
- @end
- @implementation dataViewController
- - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
- {
- self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
- if (self) {
- // Custom initialization
- }
- return self;
- }
- - (void)viewDidLoad
- {
- [super viewDidLoad];
- //self.datePicker.date = [NSData date];
- [NSTimer scheduledTimerWithTimeInterval:1 target:self selector:@selector(changeDate) userInfo:nil repeats:YES];
- }
- -(void)changeDate
- {
- self.datePicker.date = [NSDate date];
- }
- - (void)didReceiveMemoryWarning
- {
- [super didReceiveMemoryWarning];
- // Dispose of any resources that can be recreated.
- }
- - (void)dealloc {
- [_datePicker release];
- [_lblShow release];
- [super dealloc];
- }
- - (IBAction)click:(id)sender {
- NSData *date = self.datePicker.date;
- NSDateFormatter *formater=[[[NSDateFormatter alloc] init] autorelease];
- //设置日期格式
- formater.dateFormat = @"yyyy-MM-dd HH:mm:ss";//HH代表24时制,hh代表12时制
- NSString *str = [formater stringFromDate:date];
- //设置时区
- formater.locale = [[[NSLocale alloc] initWithLocaleIdentifier:@"zh_CN"] autorelease];
- date = [formater dateFromString:@"2013-08-15 14:03:00"];
- NSLog(@"字符串转化成日期是:%@",date);
- NSLog(@"%@",str);
- UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"当前时间" message:str delegate:nil cancelButtonTitle:@"OK" otherButtonTitles: nil];
- [alert show];
- self.lblShow.text = str;
- }
- @end
PickerView的实现:
viewController.h:
#import <UIKit/UIKit.h>
//注意:在使用pickerView的时候要将控件拖向File's Owner,将DataSourse和Delegate指向File's Owner,并且要实现他的两个协议
@interface SecondViewController :UIViewController<UIPickerViewDataSource,UIPickerViewDelegate>
@property (retain,nonatomic)IBOutletUIPickerView *picker;
- (IBAction)click:(id)sender;
@property(nonatomic,retain)NSArray *array;
@end
viewController.m:
- #import "SecondViewController.h"
- @interface SecondViewController ()
- @end
- @implementation SecondViewController
- - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
- {
- self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
- if (self) {
- // Custom initialization
- }
- return self;
- }
- - (void)viewDidLoad
- {
- [super viewDidLoad];
- NSArray *arr = [NSArray arrayWithObjects:@"shanghai",@"nanjign",@"tianjin",@"nantong",@"beijing",nil];
- self.array = arr;
- }
- - (void)didReceiveMemoryWarning
- {
- [super didReceiveMemoryWarning];
- // Dispose of any resources that can be recreated.
- }
- - (void)dealloc {
- [_picker release];
- [super dealloc];
- }
- #pragma mark datasourse
- //每个组件有多少行数据
- -(NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component
- {
- return [self.array count];
- }
- //PickerView有几个组件
- -(NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView
- {
- return 1;
- }
- #pragma mark delegate
- //每个组件中的每行显示什么数据
- -(NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component
- {
- return [self.array objectAtIndex:row];
- }
- - (IBAction)click:(id)sender {
- int row = [self.picker selectedRowInComponent:0];//获得第几个组件中被选中的行数
- NSString *str = [self.array objectAtIndex:row];//通过第几行,在数据中获得被选中的字符串
- UIAlertView *alert = [[[UIAlertView alloc] initWithTitle:@"title" message:str delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil] autorelease];
- [alert show];
- }
- @end
效果图:
如果有两个Component的话:
viewController.h:
- #import <UIKit/UIKit.h>
- @interface FirstViewController : UIViewController<UIPickerViewDataSource,UIPickerViewDelegate>
- @property (retain, nonatomic) IBOutlet UIPickerView *picker;
- @property(nonatomic,retain)NSArray *array;
- @property(nonatomic,retain)NSArray *array2;
- - (IBAction)click:(id)sender;
- @end
viewController.m:
- #import "FirstViewController.h"
- #define component_0 0
- #define other_component 1
- @interface FirstViewController ()
- @end
- @implementation FirstViewController
- - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
- {
- self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
- if (self) {
- // Custom initialization
- }
- return self;
- }
- - (void)viewDidLoad
- {
- [super viewDidLoad];
- NSArray *array = [NSArray arrayWithObjects:@"上海",@"北京",@"天津",@"成都",@"台湾",@"香港",@"江苏",@"武汉",@"黑龙江",@"浙江", nil];
- self.array = array;
- array = @[@"路飞",@"乔巴",@"香吉士",@"索隆",@"娜美",@"罗宾",@"乌索普",@"弗兰奇",@"骷髅头"];
- self.array2 = array;
- //用来设置默认选项
- [self.picker selectRow:2 inComponent:component_0 animated:YES];
- [self.picker selectRow:3 inComponent:other_component animated:YES];
- }
- //每个组件有几行数据
- -(NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component
- {
- //创建数据
- if(component == component_0)
- {
- return [self.array count]; //动态获取数字
- }else{
- return [self.array2 count];
- }
- }
- #pragma mark delegate
- //每个组件的每行显示什么数据
- -(NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component
- {
- if(component == component_0)
- {
- return [self.array objectAtIndex:row];
- }else{
- return [self.array2 objectAtIndex:row];
- }
- }
- -(NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView
- {
- return 2;
- }
- //当你对一个pickerView进行了一次操作之后都会被调用
- -(void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component
- {
- NSString *str = nil;
- if(component == component_0)
- {
- str = [self.array objectAtIndex:row];
- }
- else
- {
- str = [self.array2 objectAtIndex:row];
- }
- NSLog(@"%@",str);
- }
- - (void)dealloc {
- [_picker release];
- [_array release];
- [_array2 release];
- [super dealloc];
- }
- - (IBAction)click:(id)sender {
- int row = [self.picker selectedRowInComponent:component_0]; //第几个组件中被选中的行数
- NSString * str = [self.array objectAtIndex:row]; //通过第几行,在数据中获得被选中的字符串
- row = [self.picker selectedRowInComponent:other_component];
- NSString *str1 = [self.array2 objectAtIndex:row];
- NSString *str3 = [NSString stringWithFormat:@"%@ %@",str,str1];
- UIAlertView * alert = [[UIAlertView alloc] initWithTitle:@"Title" message:str3 delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil];
- [alert show];
- }
- @end
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