UI控件
UIApplicationDelegate
/* 说明：当应用程序将要入非活动状态执行，此期间，应用程序不接收消息或事件，比如来电话了 *
- (void)applicationWillResignActive:(UIApplication *)application {}
/* 说明：当程序被推送到后台的时候调用。所以要设置后台继续运行，则在这个函数里面设置即可 *
- (void)applicationDidEnterBackground:(UIApplication *)application {}
/* 说明：当程序从后台将要重新回到前台时候调用 */
- (void)applicationWillEnterForeground:(UIApplication *)application {}
/* 说明：当应用程序入活动状态执行 */
- (void)applicationDidBecomeActive:(UIApplication *)application {}
/* 说明：当程序将要退出是被调用，通常是用来保存数据和一些退出前的清理工作。这个需要要设置UIApplicationExitsOnSuspend的键值 */
- (void)applicationWillTerminate:(UIApplication *)application {}
/* 说明：当程序载入后执行 */
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions{}
UIViewController
/* 重写初始化方法，完成初始化 */
- (instancetype)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil{}
/* 从nib载入视图，通常这一步不需要去干涉。除非你没有使用xib文件创建视图 */
-(void)loadView{[super loadView];}
/* 载入完成，可以进行自定义数据以及动态创建其他控件 */
- (void)viewDidLoad {[super viewDidLoad];}
/* 视图将要出现的时候调用 */
-(void)viewWillAppear:(BOOL)animated{}
/* 视图已经出现的时候调用 */
-(void)viewDidAppear:(BOOL)animated{}
/* 视图将要消失的时候调用 */
-(void)viewWillDisappear:(BOOL)animated{}
/* 视图已经消失的时候调用 */
-(void)viewDidDisappear:(BOOL)animated{}
/* 当收到内存警告的时候调用 */
- (void)didReceiveMemoryWarning {[super didReceiveMemoryWarning];}
UIView控件
UIWindow
self.window=[[UIWindow alloc]initWithFrame:[[UIScreen mainScreen]bounds]];//应用程序的窗口，继承自UIView
self.window.backgroundColor=[UIColor whiteColor];//设置窗口的背景颜色
/* 创建一个继承自UIViewController的视图控制器 */
/**
RootViewController *rootVC=[[RootViewController alloc]initWithNibName:nil bundle:nil];
self.window.rootViewController=rootVC;//设置窗口的根视图控制器的属性为firstVC
**/
UIView
UIView *aView = [[UIView alloc]initWithFrame:CGRectMake(0, 20, 100, 100)];//在定义UIView的时候指定一个坐标
aView.backgroundColor=[UIColor purpleColor];//设置aView的背景颜色
[self.view addSubview:aView];
UIView *bView=[[UIView alloc]initWithFrame:CGRectMake(aView.frame.origin.x+50, aView.frame.origin.y+50, 100, 100)];
bView.backgroundColor=[UIColor blueColor];
bView.alpha=0.5;//设置透明度
[self.view addSubview:bView];
UILabel
aLabel=[[UILabel alloc]initWithFrame:CGRectMake(20, 200, 280, 40)];
aLabel.text=@"这只是一个label,真的只是一个label";//设置默认显示文本
aLabel.backgroundColor=[UIColor greenColor];//设置背景颜色
aLabel.textAlignment=NSTextAlignmentCenter;//设置文本对齐方式
aLabel.font=[UIFont systemFontOfSize:20];//设置字号大小（常规）
aLabel.font=[UIFont boldSystemFontOfSize:20];//设置字号大小（加粗）
aLabel.numberOfLines=1;//设置文本显示行数
aLabel.shadowColor=[UIColor blueColor];//设置阴影
aLabel.shadowOffset=CGSizeMake(1.0, 1.0);//设置阴影宽度
aLabel.highlightedTextColor=[UIColor blackColor];//设置高亮
aLabel.highlighted=YES;//设置高亮状态为开
aLabel.lineBreakMode=NSLineBreakByTruncatingTail;//设置文本过长时显示状态
[self.view addSubview:aLabel];
UIButton
UIButton *yellowButton=[UIButton buttonWithType:UIButtonTypeCustom];//设置按钮样式
yellowButton.backgroundColor=[UIColor blackColor];//设置按钮的背景颜色
yellowButton.frame=CGRectMake(200, 50, 100, 40);//设置按钮的坐标以及大小
[yellowButton setTitle:@"按钮1" forState:UIControlStateNormal];//设置按钮的title，并以常态显示
[yellowButton addTarget:self action:@selector(setYellowColor) forControlEvents:UIControlEventTouchUpInside];//给按钮添加事件
[yellowButton setTitleColor:[UIColor orangeColor] forState:UIControlStateNormal];//设置按钮的title颜色
[yellowButton setBackgroundImage:[UIImage imageNamed:@"按钮素材.png"] forState:UIControlStateHighlighted];//设置按钮高亮点击背景图片
[self.view addSubview:yellowButton];
NSArray *itemArray=[NSArray arrayWithObjects:@"A",@"B", nil];
UISegmentedControl
UISegmentedControl *segmentControl=[[UISegmentedControl alloc]initWithItems:itemArray];//初始化一个分段控制器，并给初始的两个按钮
segmentControl.frame=CGRectMake(20, 280, 280, 30);
segmentControl.backgroundColor=[UIColor greenColor];//背景颜色
[segmentControl insertSegmentWithTitle:@"C" atIndex:2 animated:NO];//插入item按钮
[segmentControl insertSegmentWithTitle:@"D" atIndex:3 animated:NO];
[segmentControl insertSegmentWithTitle:@"E" atIndex:4 animated:NO];
segmentControl.tintColor=[UIColor redColor];//选中渲染颜色
[segmentControl setSelectedSegmentIndex:2];//默认选中
segmentControl.momentary=YES;//设置选中之后是否恢复到原来的状态
[segmentControl setTitle:@"修改" forSegmentAtIndex:2];//修改标题
[segmentControl setWidth:100 forSegmentAtIndex:2];//设置字按钮的宽度
[segmentControl setEnabled:NO forSegmentAtIndex:2];//设置字按钮不可点击
// titleForSegmentAtIndex//获取字按钮title
// imageForSegmentAtIndex//获取字按钮图片
// removeSegmentAtIndex: animated://删除一个按钮
[segmentControl addTarget:self action:@selector(chickSegmentControl:) forControlEvents:UIControlEventValueChanged];//添加事件
[self.view addSubview:segmentControl];
-(void)chickSegmentControl:(UISegmentedControl *)segmentC{
NSInteger index=segmentC.selectedSegmentIndex;
aLabel.text=[segmentC titleForSegmentAtIndex:index];
}
UISwitch
UISwitch *aSwitch=[[UISwitch alloc]initWithFrame:CGRectMake(30, 320, 100, 30)];
aSwitch.on=YES;//默认显示状态（开、关）
aSwitch.onTintColor=[UIColor redColor];//设置打开的颜色
aSwitch.tintColor=[UIColor orangeColor];//设置关闭的颜色
aSwitch.thumbTintColor=[UIColor purpleColor];//设置小按钮的颜色
[aSwitch addTarget:self action:@selector(soSwitch:) forControlEvents:UIControlEventValueChanged];
[self.view addSubview:aSwitch];
CGAffineTransform transform1=CGAffineTransformMakeRotation(M_PI/2);
[aSwitch setTransform:transform1];
-(void)soSwitch:(UISwitch *)sender
{
if (sender.on == YES) {
NSLog(@"switch打开了");
}
else
NSLog(@"switch关闭了");
}
UISlider
UISlider *aSliger=[[UISlider alloc]initWithFrame:CGRectMake(100, 325, 200, 25)];
aSliger.maximumValue=100;//设置可调整的最大值
aSliger.minimumValue=0;
aSliger.maximumTrackTintColor=[UIColor redColor];
aSliger.minimumTrackTintColor=[UIColor blueColor];
aSliger.thumbTintColor=[UIColor orangeColor];
[aSliger addTarget:self action:@selector(doSlider:) forControlEvents:UIControlEventValueChanged];
[self.view addSubview:aSliger];
-(void)doSlider:(UISlider *)sender
{
NSLog(@"%f",(float)sender.value);
}
UIProgressView
UIProgressView *progressView=[[UIProgressView alloc]initWithFrame:CGRectMake(20, 365, 280, 10)];
progressView.progressViewStyle=UIProgressViewStyleBar;
progressView.progress=0.7;
progressView.trackTintColor=[UIColor grayColor];
[self.view addSubview:progressView];
UIImageView
UIImage *image=[UIImage imageNamed:@"run1.tiff"];
UIImageView *imgView=[[UIImageView alloc]initWithFrame:CGRectMake(20, 380, 160, 120)];
imgView.image=image;
imgView.animationImages=[NSArray arrayWithObjects:
[UIImage imageNamed:@"run1.tiff"],
[UIImage imageNamed:@"run2.tiff"],
[UIImage imageNamed:@"run3.tiff"],
[UIImage imageNamed:@"run4.tiff"],
[UIImage imageNamed:@"run5.tiff"],
[UIImage imageNamed:@"run6.tiff"], nil];
imgView.animationDuration=1.0;//一次动画的时间
imgView.animationRepeatCount=0;//重复的次数，0表示一直重复
[imgView startAnimating];//开始动画
[self.view addSubview:imgView];
UITextField
//创建一个文本输入框
_myTextField=[[UITextField alloc]initWithFrame:CGRectMake(50, 30, 220, 30)];
_myTextField.backgroundColor=[UIColor whiteColor];//设置背景颜色
_myTextField.textColor=[UIColor redColor];//设置文字的颜色
_myTextField.placeholder=@"UITextField";//输入框初始提示的文字（可自定义）
_myTextField.textAlignment=NSTextAlignmentLeft;//文本对齐方式
_myTextField.font=[UIFont systemFontOfSize:22];//设置文字的大小
_myTextField.adjustsFontSizeToFitWidth=YES;//文字自适应
_myTextField.clearButtonMode=UITextFieldViewModeAlways;//设置出现一个清除按钮
_myTextField.clearsOnBeginEditing=NO;//设置再次输入自动清除输入框的文本
_myTextField.delegate=self;//设置自己的代理
_myTextField.secureTextEntry=YES;//设置每一次输入都变成一个“ · ”
_myTextField.borderStyle=UITextBorderStyleRoundedRect;//设置输入框的样式
_myTextField.minimumFontSize=17;//设置自动缩小的最小字体
_myTextField.contentVerticalAlignment=UIControlContentVerticalAlignmentCenter;//文本垂直样式
_myTextField.contentHorizontalAlignment=UIControlContentHorizontalAlignmentLeft;//文本水平样式
_myTextField.keyboardType=UIKeyboardTypeDefault;//设置键盘样式
/*
UIKeyboardTypeDefault, // 默认键盘
UIKeyboardTypeASCIICapable, // 支持ASCII的默认键盘
UIKeyboardTypeNumbersAndPunctuation, // 标准的电话键盘（支持+、*、#）
UIKeyboardTypeURL, // 标准的url键盘（有.com）
UIKeyboardTypeNumberPad, // 数字键盘
*/
_myTextField.autocapitalizationType=UITextAutocapitalizationTypeNone;//设置是否首字母大写
/*
UITextAutocapitalizationTypeNone,不自动大写
UITextAutocapitalizationTypeWords,单词的首字母大写
UITextAutocapitalizationTypeSentences,句子的首字母大写
UITextAutocapitalizationTypeAllCharacters,所有的字母都大写***???****
*/
_myTextField.returnKeyType=UIReturnKeyDone;//设置return键变成什么样式
_myTextField.keyboardAppearance=UIKeyboardAppearanceAlert;//键盘的外观
UILabel *label=[[UILabel alloc]initWithFrame:CGRectMake(0, 0, 40, 40)];
label.text=@"*";
_myTextField.leftView=label;
_myTextField.leftViewMode=UITextFieldViewModeAlways;
_myTextField.rightView=label;
_myTextField.rightViewMode=UITextFieldViewModeAlways;
[self.view addSubview:_myTextField];
UITextFieldDelegate
//将要开始编辑 准备编辑
- (BOOL)textFieldShouldBeginEditing:(UITextField *)textField{
return YES;
}
//开始编辑
- (void)textFieldDidBeginEditing:(UITextField *)textField{
}
//将要结束编辑
- (BOOL)textFieldShouldEndEditing:(UITextField *)textField{
return YES;
}
//结束编辑
- (void)textFieldDidEndEditing:(UITextField *)textField{
}
//点击键盘输入调用调用
- (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string{
return YES;
}
//清空
- (BOOL)textFieldShouldClear:(UITextField *)textField{
return YES;
}
//换行
- (BOOL)textFieldShouldReturn:(UITextField *)textField{
[textField resignFirstResponder];//回收键盘 取消第一响应时间
return YES;
}
UITextView
myTextView=[[UITextView alloc]initWithFrame:CGRectMake(20, 80, 280, 150)];
myTextView.delegate=self;
myTextView.font=[UIFont systemFontOfSize:25];
myTextView.text=@"UITextView，接着写：";
myTextView.backgroundColor=[UIColor orangeColor];
myTextView.editable=YES;//可编辑属性
myTextView.scrollEnabled=YES;//是否可滚动
myTextView.scrollsToTop=YES;//点击状态栏，返回文本的第一行
myTextView.showsVerticalScrollIndicator=NO;//展示滚动条
[self.view addSubview:myTextView];
UITextViewDelegate
/** 单机屏幕其他区域回收键盘 */
- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{
UITouch *touch = [[event allTouches]anyObject];
if (touch.tapCount>=1) {
[myTextView resignFirstResponder];
}
}
//文本输入框发生改变时调用（多行）
- (BOOL)textView:(UITextView *)textView shouldChangeTextInRange:(NSRange)range replacementText:(NSString *)text{
if ([text isEqualToString:@"\n"]) {
[textView resignFirstResponder];
}
return YES;
}
UISearchBar
UISearchBar *searchbar = [[UISearchBar alloc]initWithFrame:CGRectMake(50, 250, 220, 50)];
searchbar.barTintColor = [UIColor cyanColor];//外围边框颜色
searchbar.searchBarStyle = UISearchBarStyleDefault;//搜索框风格
searchbar.tintColor = [UIColor greenColor];//光标颜色
searchbar.translucent = NO;//是否透明
searchbar.autocapitalizationType = UITextAutocapitalizationTypeAllCharacters;//设置 大写风格
searchbar.prompt = @"UISearchBar";//提示
searchbar.autocorrectionType = UITextAutocorrectionTypeYes;//自动校正
searchbar.showsBookmarkButton = YES;//展示书签按钮
searchbar.delegate = self;
[self.view addSubview:searchbar];
UIAlertView
UIAlertView *alertView1=[[UIAlertView alloc]initWithTitle:@"Warming" message:@"This is a alertview" delegate:nil cancelButtonTitle:@"cancel" otherButtonTitles:@"sure", nil];
//让提示框展示的方法
[alertView1 show];
alertView1.tag=101;//提示框tag值标记
alertView1.title=@"警告";//设置提示框的标题
alertView1.message=@"还是那个提示框";//设置提示框的提示信息
[alertView1 addButtonWithTitle:@"OK"];//添加提示框展示的按钮
NSLog(@"%d",alertView1.visible);//提示框是否可见的属性（只读）
NSLog(@"%d",(int)alertView1.numberOfButtons);//获取提示框的按钮的总数
NSLog(@"%@",[alertView1 buttonTitleAtIndex:0]);//获取提示框制定索引的按钮标题
NSLog(@"%d",(int)[alertView1 cancelButtonIndex]);//取消按钮的索引
NSLog(@"%d",(int)alertView1.firstOtherButtonIndex);//第一个按钮的索引
/*
UIAlertViewStyleDefault 默认样式
UIAlertViewStyleSecureTextInput 带有一个 密文 输入框的提示框样式
UIAlertViewStylePlainTextInput 带有一个 明文 输入框的提示框样式
UIAlertViewStyleLoginAndPasswordInput 带有两个输入框的提示框样式
*/
alertView1.alertViewStyle=UIAlertViewStyleLoginAndPasswordInput;
UITextField *textField1=[alertView1 textFieldAtIndex:0];//获取第一个输入框
textField1.text=@"http://";
UITextField *textField2=[alertView1 textFieldAtIndex:1];//获取第二个输入框
textField2.placeholder=@"请输密码";
UIAlertViewDelegate
//alertView上面的按钮点击事件
-(void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex{
if (buttonIndex == 1) {
NSLog(@"sure");
}
else
{
NSLog(@"cancel");
}
}
//alertView已经消失的方法
-(void)alertView:(UIAlertView *)alertView didDismissWithButtonIndex:(NSInteger)buttonIndex{}
//alertView将要消失的方法
-(void)alertView:(UIAlertView *)alertView willDismissWithButtonIndex:(NSInteger)buttonIndex{}
//alertView点击取消的方法
-(void)alertViewCancel:(UIAlertView *)alertView{}
//alertView已经出现的方法
-(void)didPresentAlertView:(UIAlertView *)alertView{}
//alertView将要出现的方法
-(void)willPresentAlertView:(UIAlertView *)alertView{
for (UIView *view in alertView.subviews)
{
if ([view isKindOfClass:[UILabel class]])
{
UILabel *label=(UILabel *)view;
label.textAlignment=NSTextAlignmentLeft;
}
}
}
UIActionSheet
UIActionSheet *actionSheet1=[[UIActionSheet alloc]initWithTitle:@"Actionsheet" delegate:self cancelButtonTitle:@"取消" destructiveButtonTitle:@"Red Color" otherButtonTitles:@"Blue Color",@"White Color", nil];
NSLog(@"%@",[actionSheet1 buttonTitleAtIndex:0]);
//添加到self.view中
[actionSheet1 showInView:self.view];
UIActionSheetDelegate
//actionSheet上面的按钮点击事件
-(void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex{
if (buttonIndex==0) {
self.view.backgroundColor=[UIColor redColor];
}
else if (buttonIndex==1)
{
self.view.backgroundColor=[UIColor blueColor];
}
else
{
self.view.backgroundColor=[UIColor whiteColor];
}
}
//actionSheet将要消失的方法
-(void)actionSheet:(UIActionSheet *)actionSheet willDismissWithButtonIndex:(NSInteger)buttonIndex{ }
//actionSheet已经消失的方法
-(void)actionSheet:(UIActionSheet *)actionSheet didDismissWithButtonIndex:(NSInteger)buttonIndex{
NSLog(@"已经消失");
}
//取消按钮的方法
-(void)actionSheetCancel:(UIActionSheet *)actionSheet{ }
//actionSheet已经出现的方法
-(void)didPresentActionSheet:(UIActionSheet *)actionSheet{}
//actionSheet将要出现的方法
-(void)willPresentActionSheet:(UIActionSheet *)actionSheet{}
UIPickerView
//UIPickerView选择器的功能，实现数据的选择
UIPickerView *pickerView1=[[UIPickerView alloc]initWithFrame:CGRectMake(0, 0, 280, 300)];
pickerView1.center=whiteView.center;
pickerView1.delegate=self;
pickerView1.dataSource=self;
[whiteView addSubview:pickerView1];
UIPickerViewDataSource
//返回选择器的列数
- (NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView{
return 2;
}
//返回选择器的行数
- (NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component{
if (component==0) {
return 6;
}
return array.count;
}
UIPickerViewDelegate
//返回每一行的标题
-(NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component
{
if (component==0) {
return [NSString stringWithFormat:@"%d",(int)row];
}
return [array objectAtIndex:row];
}
//获取单元行的内容
-(void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component
{
NSString *string=[array objectAtIndex:row];
NSString *string1=[self pickerView:pickerView titleForRow:row forComponent:0];
UILabel *getLabel=(UILabel *)[self.view viewWithTag:160];
NSLog(@"%@--%@",string,string1);
getLabel.text=string1;
}
UIDatePicker
//时间的选择器
UIDatePicker *datepicker=[[UIDatePicker alloc]initWithFrame:CGRectMake(0, 0, 280, 300)];
datepicker.tag=175;
datepicker.center=whiteView.center;
datepicker.date=[NSDate date];//设置时间选择器的显示时间为当前时间
datepicker.datePickerMode=UIDatePickerModeDateAndTime;
[whiteView addSubview:datepicker];
UIDatePicker 选中的事件
-(void)selectDatePicker:(UIButton *)sender
{
UIDatePicker *datePicker=(UIDatePicker *)[self.view viewWithTag:175];
NSDateFormatter *formatter=[[NSDateFormatter alloc]init];
formatter.dateFormat=@"YYYY-MM-dd hh:mm:ss aaa";
UILabel *getLabel=(UILabel *)[self.view viewWithTag:165];
getLabel.text=[formatter stringFromDate:datePicker.date];
}
UIScrollView1
UIImageView *imgView=[[UIImageView alloc]initWithFrame:CGRectMake(0, 0, 770, 180)];
imgView.image=[UIImage imageNamed:@"Beautiful.jpeg"];
UIScrollView *_scrollView=[[UIScrollView alloc]initWithFrame:CGRectMake(20, 30, 280, 180)];
_scrollView.contentSize=CGSizeMake(770, 180);//有效的显示区域
_scrollView.backgroundColor=[UIColor redColor];
[_scrollView addSubview:imgView];
UILabel *addLabel=[[UILabel alloc]initWithFrame:CGRectMake(300, 30, 150, 30)];
addLabel.backgroundColor=[UIColor orangeColor];
addLabel.text=@"多么美的一幅画啊";
[_scrollView addSubview:addLabel];
_scrollView.pagingEnabled=NO;//分页显示的效果
[_scrollView setContentOffset:CGPointMake(300, 0) animated:YES];//加载后横向滚动300像素
_scrollView.scrollEnabled=YES;//是否可以滚动的属性
_scrollView.userInteractionEnabled=YES;//设置交互的属性
_scrollView.showsHorizontalScrollIndicator=YES;
_scrollView.showsVerticalScrollIndicator=YES;//设置滚动条是否显示
_scrollView.bounces=NO;//设置边界的反弹效果
[self.view addSubview:_scrollView];
UIScrollView2+UIPageControl
int weigth=700*280/1066;
UIScrollView *myScollview=[[UIScrollView alloc]initWithFrame:CGRectMake(65, 250, weigth, 280)];
myScollview.backgroundColor=[UIColor redColor];
myScollview.contentSize=CGSizeMake(weigth*5, 280);
myScollview.tag=121;
myScollview.delegate=self;
for (int i=0; i<5; i++) {
UIImageView *imgView1=[[UIImageView alloc]initWithFrame:CGRectMake(weigth*i, 0, weigth, 280)];
NSString *imgName=[NSString stringWithFormat:@"image%d.jpeg",i];
imgView1.image=[UIImage imageNamed:imgName];
[myScollview addSubview:imgView1];
}
myScollview.pagingEnabled=YES;
[self.view addSubview:myScollview];
UIPageControl *pageControl=[[UIPageControl alloc]initWithFrame:CGRectMake(0, 215, 320, 30)];
pageControl.tag=122;
pageControl.backgroundColor=[UIColor blueColor];
pageControl.numberOfPages=5;//控制显示的页数
pageControl.currentPage=0;//默认显示在第几页
[pageControl addTarget:self action:@selector(pageControlSelector:) forControlEvents:UIControlEventValueChanged];
[self.view addSubview:pageControl];
-(void)pageControlSelector:(UIPageControl *)sender
{
NSLog(@"%d",(int)sender.currentPage);
UIScrollView *getScroll=(UIScrollView *)[self.view viewWithTag:121];
CGSize size=getScroll.frame.size;
CGRect rect1=CGRectMake((sender.currentPage * size.width), 0, size.width, size.height);
[getScroll scrollRectToVisible:rect1 animated:YES];//让scrollveiw滚动
}
-(void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView
{
UIPageControl *pageC=(UIPageControl *)[self.view viewWithTag:122];
CGPoint point1=scrollView.contentOffset;
NSLog(@"%f",(float)point1.x);
[pageC setCurrentPage:point1.x/183];
}
UIWebView
_webView=[[UIWebView alloc]initWithFrame:CGRectMake(0, 0, 320, 400)];
_webView.delegate=self;
NSString *urlString=@“http://www.baidu.com”;声明网址字符串
NSURL *url=[NSURL URLWithString:urlString];//将字符串封装到NSUrl中用于访问
NSURLRequest *request=[[NSURLRequest alloc]initWithURL:url];//建立网络请求对象，用于请求服务器
[_webView loadRequest:request];//开始执行访问方法
[self.view addSubview:_webView];
if ([_webView canGoBack]) {[_webView goBack];}//如果可以返回网页，就返回
if ([_webView canGoForward]) {[_webView goForward];}//如果可以前进网页，就前进
UIWebViewDelegate
//已经开始加载的方法
- (void)webViewDidStartLoad:(UIWebView *)webView{}
//已经完成加载的方法
- (void)webViewDidFinishLoad:(UIWebView *)webView{}
//发生错误的方法
- (void)webView:(UIWebView *)webView didFailLoadWithError:(NSError *)error
{NSLog(@“发生错误 %@“,error.localizedDescription);}
UIToolbar
UIToolbar *toolBar=[[UIToolbar alloc]initWithFrame:CGRectMake(20, 40, 280, 40)];
toolBar.backgroundColor=[UIColor redColor];
//创建toolBar上面的单元按钮
UIBarButtonItem *item1=[[UIBarButtonItem alloc]initWithBarButtonSystemItem:UIBarButtonSystemItemBookmarks target:self action:@selector(doItemOne)];
UIBarButtonItem *item2=[[UIBarButtonItem alloc]initWithBarButtonSystemItem:UIBarButtonSystemItemCamera target:self action:@selector(doItemTwo)];
UIBarButtonItem *item3=[[UIBarButtonItem alloc]initWithBarButtonSystemItem:UIBarButtonSystemItemTrash target:self action:@selector(doItemThree)];
UIBarButtonItem *item4=[[UIBarButtonItem alloc]initWithBarButtonSystemItem:UIBarButtonSystemItemSearch target:self action:@selector(doItemFour)];
//添加均等分割的空格
UIBarButtonItem *itemSpace=[[UIBarButtonItem alloc]initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:self action:nil];
[toolBar setItems:@[item1,itemSpace,item2,itemSpace,item3,itemSpace,item4]];//将创建好的按钮放在toolBar上
toolBar.tintColor=[UIColor blueColor];//添加元素的颜色
toolBar.barTintColor=[UIColor orangeColor];//工具条的颜色
toolBar.barStyle=UIBarStyleBlackTranslucent;//设置工具条的样式
[self.view addSubview:toolBar];
在键盘上添加回收键盘的工具条
UIToolbar *returnBar=[[UIToolbar alloc]initWithFrame:CGRectMake(20, 100, 280, 40)];
UIButton *button=[UIButton buttonWithType:UIButtonTypeCustom];
button.frame=CGRectMake(0, 0, 40, 30);
[button setImage:[UIImage imageNamed:@"jianpan.png"] forState:UIControlStateNormal];
[button addTarget:self action:@selector(doReturnKeybord) forControlEvents:UIControlEventTouchUpInside];
UIBarButtonItem *returnBTN=[[UIBarButtonItem alloc]initWithCustomView:button];//将自定义的按钮封装成UIBarButtonItem对象
returnBar.barTintColor=[UIColor blackColor];
[returnBar setItems:@[itemSpace,returnBTN]];
[self.view addSubview:returnBar];
UITextField *ttytt;
ttytt.inputAccessoryView=returnBar;//将工具条添加到输入框弹出的键盘上
