Iphone [Tab Bar实现多view切换,Picker,DataPicter实现

2022-09-13 21:35:50

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

  1. - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
  2. {
  3. self.window = [[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]] autorelease];
  4. //通过目录导入xib文件中所有的内容
  5. NSArray *arr = [[NSBundle mainBundle] loadNibNamed:@"rootView" owner:self options:nil];
  6. NSLog(@"%@",arr);
  7. self.window.rootViewController = self.rootView;
  8. self.window.backgroundColor = [UIColor whiteColor];
  9. [self.window makeKeyAndVisible];
  10. return YES;
  11. }

4.DateViewPicker的实现

dateViewController.h:

  1. #import <UIKit/UIKit.h>
  2. @interface dataViewController : UIViewController
  3. @property (retain, nonatomic) IBOutlet UIDatePicker *datePicker;
  4. - (IBAction)click:(id)sender;
  5. @property (retain, nonatomic) IBOutlet UILabel *lblShow;
  6. @end

dateViewController.m:

  1. #import "dataViewController.h"
  2. @interface dataViewController ()
  3. @end
  4. @implementation dataViewController
  5. - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
  6. {
  7. self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
  8. if (self) {
  9. // Custom initialization
  10. }
  11. return self;
  12. }
  13. - (void)viewDidLoad
  14. {
  15. [super viewDidLoad];
  16. //self.datePicker.date = [NSData date];
  17. [NSTimer scheduledTimerWithTimeInterval:1 target:self selector:@selector(changeDate) userInfo:nil repeats:YES];
  18. }
  19. -(void)changeDate
  20. {
  21. self.datePicker.date = [NSDate date];
  22. }
  23. - (void)didReceiveMemoryWarning
  24. {
  25. [super didReceiveMemoryWarning];
  26. // Dispose of any resources that can be recreated.
  27. }
  28. - (void)dealloc {
  29. [_datePicker release];
  30. [_lblShow release];
  31. [super dealloc];
  32. }
  33. - (IBAction)click:(id)sender {
  34. NSData *date = self.datePicker.date;
  35. NSDateFormatter *formater=[[[NSDateFormatter alloc] init] autorelease];
  36. //设置日期格式
  37. formater.dateFormat = @"yyyy-MM-dd HH:mm:ss";//HH代表24时制,hh代表12时制
  38. NSString *str  = [formater stringFromDate:date];
  39. //设置时区
  40. formater.locale = [[[NSLocale alloc] initWithLocaleIdentifier:@"zh_CN"] autorelease];
  41. date = [formater dateFromString:@"2013-08-15 14:03:00"];
  42. NSLog(@"字符串转化成日期是:%@",date);
  43. NSLog(@"%@",str);
  44. UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"当前时间" message:str delegate:nil cancelButtonTitle:@"OK" otherButtonTitles: nil];
  45. [alert show];
  46. self.lblShow.text = str;
  47. }
  48. @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:

  1. #import "SecondViewController.h"
  2. @interface SecondViewController ()
  3. @end
  4. @implementation SecondViewController
  5. - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
  6. {
  7. self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
  8. if (self) {
  9. // Custom initialization
  10. }
  11. return self;
  12. }
  13. - (void)viewDidLoad
  14. {
  15. [super viewDidLoad];
  16. NSArray *arr = [NSArray arrayWithObjects:@"shanghai",@"nanjign",@"tianjin",@"nantong",@"beijing",nil];
  17. self.array = arr;
  18. }
  19. - (void)didReceiveMemoryWarning
  20. {
  21. [super didReceiveMemoryWarning];
  22. // Dispose of any resources that can be recreated.
  23. }
  24. - (void)dealloc {
  25. [_picker release];
  26. [super dealloc];
  27. }
  28. #pragma mark datasourse
  29. //每个组件有多少行数据
  30. -(NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component
  31. {
  32. return [self.array count];
  33. }
  34. //PickerView有几个组件
  35. -(NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView
  36. {
  37. return 1;
  38. }
  39. #pragma mark delegate
  40. //每个组件中的每行显示什么数据
  41. -(NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component
  42. {
  43. return [self.array objectAtIndex:row];
  44. }
  45. - (IBAction)click:(id)sender {
  46. int row = [self.picker selectedRowInComponent:0];//获得第几个组件中被选中的行数
  47. NSString *str = [self.array objectAtIndex:row];//通过第几行，在数据中获得被选中的字符串
  48. UIAlertView *alert = [[[UIAlertView alloc] initWithTitle:@"title" message:str delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil] autorelease];
  49. [alert show];
  50. }
  51. @end

效果图：

Iphone [Tab Bar实现多view切换,Picker,DataPicter实现

如果有两个Component的话：

viewController.h:

  1. #import <UIKit/UIKit.h>
  2. @interface FirstViewController : UIViewController<UIPickerViewDataSource,UIPickerViewDelegate>
  3. @property (retain, nonatomic) IBOutlet UIPickerView *picker;
  4. @property(nonatomic,retain)NSArray *array;
  5. @property(nonatomic,retain)NSArray *array2;
  6. - (IBAction)click:(id)sender;
  7. @end

viewController.m:

  1. #import "FirstViewController.h"
  2. #define component_0 0
  3. #define other_component 1
  4. @interface FirstViewController ()
  5. @end
  6. @implementation FirstViewController
  7. - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
  8. {
  9. self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
  10. if (self) {
  11. // Custom initialization
  12. }
  13. return self;
  14. }
  15. - (void)viewDidLoad
  16. {
  17. [super viewDidLoad];
  18. NSArray *array = [NSArray arrayWithObjects:@"上海",@"北京",@"天津",@"成都",@"*",@"香港",@"江苏",@"武汉",@"黑龙江",@"浙江", nil];
  19. self.array = array;
  20. array = @[@"路飞",@"乔巴",@"香吉士",@"索隆",@"娜美",@"罗宾",@"乌索普",@"弗兰奇",@"骷髅头"];
  21. self.array2 = array;
  22. //用来设置默认选项
  23. [self.picker selectRow:2 inComponent:component_0 animated:YES];
  24. [self.picker selectRow:3 inComponent:other_component animated:YES];
  25. }
  26. //每个组件有几行数据
  27. -(NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component
  28. {
  29. //创建数据
  30. if(component == component_0)
  31. {
  32. return [self.array count];   //动态获取数字
  33. }else{
  34. return [self.array2 count];
  35. }
  36. }
  37. #pragma mark delegate
  38. //每个组件的每行显示什么数据
  39. -(NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component
  40. {
  41. if(component == component_0)
  42. {
  43. return [self.array objectAtIndex:row];
  44. }else{
  45. return [self.array2 objectAtIndex:row];
  46. }
  47. }
  48. -(NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView
  49. {
  50. return 2;
  51. }
  52. //当你对一个pickerView进行了一次操作之后都会被调用
  53. -(void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component
  54. {
  55. NSString *str = nil;
  56. if(component == component_0)
  57. {
  58. str = [self.array objectAtIndex:row];
  59. }
  60. else
  61. {
  62. str = [self.array2 objectAtIndex:row];
  63. }
  64. NSLog(@"%@",str);
  65. }
  66. - (void)dealloc {
  67. [_picker release];
  68. [_array release];
  69. [_array2 release];
  70. [super dealloc];
  71. }
  72. - (IBAction)click:(id)sender {
  73. int row = [self.picker selectedRowInComponent:component_0];   //第几个组件中被选中的行数
  74. NSString * str = [self.array objectAtIndex:row];   //通过第几行，在数据中获得被选中的字符串
  75. row = [self.picker selectedRowInComponent:other_component];
  76. NSString *str1 = [self.array2 objectAtIndex:row];
  77. NSString *str3 = [NSString stringWithFormat:@"%@ %@",str,str1];
  78. UIAlertView * alert = [[UIAlertView alloc] initWithTitle:@"Title" message:str3 delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil];
  79. [alert show];
  80. }
  81. @end

Iphone [Tab Bar实现多view切换,Picker,DataPicter实现

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