iphone开发第二个程序

此程序包括UIProgressView，UIButton, UIDatePicker,UIAlert,UILabel,NSTimer

// HViewController.h

// Btn_lbl

// Created by public on 13-7-18.

#import <UIKit/UIKit.h>

@interface HViewController : UIViewController

@property (retain, nonatomic) IBOutlet UIDatePicker *hdatePicker;

@property (retain, nonatomic) IBOutlet UILabel *lblText;

@property (retain, nonatomic) IBOutlet UIProgressView *progress;

@property (retain, nonatomic) IBOutlet UIProgressView *progressBar;

@property (retain, nonatomic) IBOutlet UIButton *btnStart;

@property (retain, nonatomic) IBOutlet UIButton *btnStop;

@property(retain,nonatomic)IBOutlet NSTimer* timer;

- (IBAction)btnClick:(id)sender;

- (IBAction)dateChange;

- (IBAction)startProgress:(id)sender;

- (IBAction)stopProgress:(id)sender;

- (IBAction)startHeadProgress:(id)sender;

@end

// HViewController.m

// Btn_lbl

// Created by public on 13-7-18.

#import "HViewController.h"

@interface HViewController ()

@end

@implementation HViewController

#pragma mark 加载数据

- (void)viewDidLoad

{

[super viewDidLoad];

// Do any additional setup after loading the view, typically from a nib.

NSDate* hdate=[NSDate date];

[_hdatePicker setDate:hdate animated:YES];

}

- (void)didReceiveMemoryWarning

{

[super didReceiveMemoryWarning];

// Dispose of any resources that can be recreated.

}

- (void)dealloc {

[_lblText release];

[_hdatePicker release];

[_progress release];

[_timer release];

[_btnStart release];

[_progressBar release];

[_btnStop release];

[super dealloc];

}

#pragma mark -按钮的测试点击事件

- (IBAction)btnClick:(id)sender{

UIButton * button=(UIButton *)sender;

_lblText.font=[UIFont fontWithName:@"Bold" size:25];

_lblText.backgroundColor=[UIColor blueColor];

_lblText.textColor=[UIColor whiteColor];

_lblText.text=@"中华";

NSString* tittle=[NSString stringWithFormat:@"UILabel的内容是：%@,UIButton 的 tag 是 %d",_lblText.text,button.tag];

NSString* message=[button currentTitle];

UIAlertView* alert=[[UIAlertView alloc]initWithTitle:tittle message:message delegate:self cancelButtonTitle:@"OK" otherButtonTitles:@"cancel", nil];

[alert show];

[alert release];

}

#pragma mark -日历的改变

- (IBAction)dateChange {

NSDate* date=[_hdatePicker date];

NSDateFormatter *format=[[NSDateFormatter alloc]init];

[format setDateStyle:NSDateFormatterShortStyle];

[format setTimeStyle:NSDateFormatterShortStyle];

_lblText.text=[NSString stringWithFormat:@"%@",[format stringFromDate:date]];

[format release];

}

#pragma mark -Progress View进度条

-(void)changetimer

{

_progress.progress+=0.001f;

self.progressBar.progress+=0.001f;

}

- (IBAction)startProgress:(id)sender {

_timer=[NSTimer scheduledTimerWithTimeInterval:0.03f target:self selector:@selector(changetimer) userInfo:nil repeats:YES];

[_timer retain];

[_btnStart setEnabled:NO];

[_btnStop setEnabled:YES];

}

- (IBAction)stopProgress:(id)sender {

[_timer invalidate];

[_timer release];

[_btnStart setTitle:@"继续" forState:UIControlStateNormal];

UIColor *color=[UIColor blueColor];

[_btnStart setTitleColor:color forState:UIControlStateNormal];

[_btnStart setEnabled:YES];

[_btnStop setEnabled:NO];

}

- (IBAction)startHeadProgress:(id)sender {

_progress.progress=0.0f;

_progressBar.progress=0.0f;

[_btnStart setTitle:@"开始" forState:UIControlStateNormal];

UIColor *color=[UIColor blueColor];

[_btnStart setTitleColor:color forState:UIControlStateNormal];

}

@end