iOS xib constraint 两控件居中 ios基本控件的使用

#pragma  mark  UIAlertView 的使用方法

-(void)testAlertView
{
    //可以输入用户名和密码的输入框
    UIAlertView *alert=[[UIAlertViewalloc]init];
    alert.title=@"输入用户名和密码";
//alertViewStyle这个属性比较重要
/*
    UIAlertViewStyleDefault = 0,  表示没有格式
     UIAlertViewStyleSecureTextInput,  安全输入格式，比如密码加密
     UIAlertViewStylePlainTextInput,  简单格式
     UIAlertViewStyleLoginAndPasswordInput   用户名和密码输入*/
    alert.alertViewStyle=UIAlertViewStyleLoginAndPasswordInput;
    [alert addButtonWithTitle:@"取消"];
    [alert addButtonWithTitle:@"完成"];
    [alert show];
//要实现事件，必须遵守UIAlertViewDelegete代理
    alert.delegate=self;
    
}
//alertView的事件处理
- (void)alertView:(UIAlertView *)alertViewclickedButtonAtIndex:(NSInteger)buttonIndex;
{
textFieldAtIndex:0
    UITextField *nametext=[alertView textFieldAtIndex:0];
    UITextField *password=[alertView textFieldAtIndex:1];
    NSLog(@"name=%@password=%@",nametext.text,password.text);
    
}

//附上效果图

#pragma  mark   动作列表的创建

-(void)testActionSheet
{
    //实现一个分享的实力，点击分享，弹出动作列表
    UIButton *shareButton=[UIButtonsystemButtonWithFrame:CGRectMake(100, 100, 150, 40) title:@"分享"target:selfaction:@selector(dealshareClick)];
    shareButton.backgroundColor=[UIColorgreenColor];
    [self.view addSubview:shareButton];
    
}
#pragma  mark 处理点击按钮
-(void)dealshareClick
{

    UIActionSheet *actionsheet=[[UIActionSheetalloc]initWithTitle:@"分享"  delegate:self cancelButtonTitle:@"取消" destructiveButtonTitle:nil otherButtonTitles:@"新浪微博",@"微信",@"邮件",@"短信", nil];
    [actionsheet showInView:self.view];
    
}
//处理actionsheet的事件
// 必须遵守actionsheetdelegete协议
//处理这个事件 也必须实现UIActionSheet的代理
-(void)actionSheet:(UIActionSheet*)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex
{
    
    //按照下表来处理事件
    if (buttonIndex==0) {
        
    }
    elseif(buttonIndex==1)
    {
        
    }
    NSLog(@"%d",buttonIndex);
}

UIActionSheet的效果图

 

#pragma  mark 创建文本视图

//这个文本视图类似于textfield但是不同的是textfield是单行文本，这是多行文本输入

-(void)testTextView
{
    
    UITextView *textView=[[UITextViewalloc]initWithFrame:CGRectMake(10, 30, 300, 400)];
    //点击return并不会回收键盘  是换行,要想回收，自己添加按钮
    //1.设置文本内容
    textView.text=@"尽人事，听天命，非也非也，我命由我不由天.尽人事，听天命，非也非也，我命由我不由天.尽人事，听天命，非也非也，我命由我不由天.尽人事";
     //历史的尘埃（在历史的天空下，所有人只不过是一粒尘埃）
    //2这里设置背景颜色
    textView.backgroundColor=[UIColorgreenColor];
    textView.delegate=self;
    
    //回收textview 的键盘，
//    1在导航栏上添加完成回收
//    2.在虚拟键盘的附件区域添加一个完成按钮
//    3.添加一个根虚拟键盘联动的按钮
     textView.tag=200;
    
    [self.view addSubview:textView];
    
    //z在键盘添加附件区域
    UIToolbar *toolbar=[[UIToolbaralloc]initWithFrame:CGRectMake(0, 0, 320, 44)];
    // 完成按钮
    UIBarButtonItem*finishItem=[[UIBarButtonItem alloc]initWithTitle:@"完成"style:UIBarButtonItemStylePlain target:self action:@selector(dealtextBtnClik:)];
    finishItem.tag=100;
    //清空按钮
    UIBarButtonItem*clearItem=[[UIBarButtonItem alloc]initWithTitle:@"清空"style:UIBarButtonItemStylePlain target:self action:@selector(dealtextBtnClik:)];
    clearItem.tag=101;
    toolbar.items=@[finishItem,clearItem];
    //把toolbar 加入到键盘的附件区域
    //[self.view addSubview: toolbar];
    textView.inputAccessoryView=toolbar;
   
    
}

#pragma  mark这里在键盘附件区域添加事件

-(void)dealtextBtnClik:(UIBarButtonItem*)button
{
    UITextView *textView=(UITextView*)[self.view viewWithTag:200];
    //等于100的时候，完成
    if (button.tag==100) {
        [textView resignFirstResponder];
    }
    elseif(button.tag==101)
    {
        textView.text=@"";
    }
}

#pragma   mark  进度条
-(void)testProgressView
{
    UIProgressView *progress=[[UIProgressViewalloc]initWithProgressViewStyle:UIProgressViewStyleDefault];
    progress.frame=CGRectMake(100, 260, 200,10);
    [self.view addSubview:progress];
    //属性的设置
    progress.progress=0;
    //模拟下载完成
    [NSTimer scheduledTimerWithTimeInterval:0.1target:self selector:@selector(downloadprogress:)userInfo:progress repeats:YES];
    
}
-(void)downloadprogress:(NSTimer*)timer
{
    
    UIProgressView *progress=(UIProgressView*)timer.userInfo;
    progress.progress+=0.01;
    if (progress.progress>=1.00 ) {
        [timer invalidate];
        UIAlertView *alert=[[UIAlertViewalloc]init];
        alert.message=@"下载好啦";
        [alert addButtonWithTitle:@"好的"];
        [alert show];
    }
}

//效果图

//计数器控件，一般用在购物app上面，商品的加减
-(void)testStepper
{
    //宽度和高度都是固定的
    UIStepper *step=[[UIStepperalloc]initWithFrame:CGRectMake(150, 200, 100, 20)];
    //常用的属性的设置
    //在购物界面上添加一个输入商品的计数器
    step.minimumValue=1;
    step.maximumValue=100;
    step.stepValue=1;
    [step addTarget:self action:@selector(dealstep:)forControlEvents:UIControlEventValueChanged];
    textfield=[[UITextFieldalloc]initWithFrame:CGRectMake(10, 200, 100, 30)];
   textfield.borderStyle=UITextBorderStyleRoundedRect;
    textfield.text=@"1";
    textfield.tag=100;
    textfield.delegate=self;
    [self.view addSubview:textfield];
    [self.view addSubview:step];
}
-(void)dealstep:(UIStepper*)step
{
     //step.value
    UITextField *text=(UITextField*)[self.view viewWithTag:100];
    text.text=[NSString stringWithFormat:@"%i",(int)step.value];
}
//键盘回收，一般所有的textfield控件都需要使用的方法，使用这个方法必须遵守UITextfieldDelegate这个协议
-(BOOL)textFieldShouldReturn:(UITextField*)textField
{
    [textfield resignFirstResponder];
    returnYES;
}

 //效果图

#pragma   mark 分段选择控件
-(void)testSegmentedControl
{
    NSArray *array=@[@"脑残",@"菊花",@"武士",@"刀",@"小桥"];
    UISegmentedControl *sc=[[UISegmentedControlalloc]initWithItems:array];
    sc.frame=CGRectMake(10, 100,300, 30);
    //设置当前的选择项
    sc.selectedSegmentIndex=1;
    [self.view addSubview:sc];
    [sc insertSegmentWithTitle:@"瘦马" atIndex:2 animated:YES];
    [sc addTarget:self action:@selector(dealsegmengt:)forControlEvents:UIControlEventValueChanged];
}
 
#pragma  mark 处理分段控件的事件
-(void)dealsegmengt:(UISegmentedControl*)segmented
{
    NSLog(@"segmented=%d",segmented.selectedSegmentIndex);
}

 

#pragma  mark 滑块控件  一般用在音乐播放器进度控制

-(void)testSlider
{
    //创建划块控件
    UISlider *slider=[[UISlideralloc]initWithFrame:CGRectMake(100, 100, 200, 20)];
    //修改长度，但是高度是固定不变的
    NSLog(@"sliderwidth=%f  and hight=%f",slider.frame.size.width,slider.frame.size.height);
  
    slider.minimumValue=0;
    slider.maximumValue=200;
    
    slider.value=100;
    //设置背景颜色
    slider.tintColor=[UIColor redColor];
    [slider addTarget:self action:@selector(dealslider:) forControlEvents:UIControlEventValueChanged];
    [self.view addSubview: slider];
}
#pragma  mark 滑块控件的事件
-(void)dealslider:(UISlider*)slider
{
    NSLog(@"slider.value=%f",slider.value);
}

#pragma  mark 活动提示控件  菊花控件

-(void)activityIndicatorView
{
    //UI ActivityIndicatorView  基本使用
    UIActivityIndicatorView*activity=[[UIActivityIndicatorViewalloc]initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleGray];
    activity.center=CGPointMake(160, 240);
    [self.view addSubview:activity];
    [activity startAnimating];
    
    //模拟数据下载完成的操作
   [ NSTimer scheduledTimerWithTimeInterval:3target:self selector:@selector(stopActivityIndicatorView:)userInfo:activity repeats:NO];
    
    
}
//活动提示控件的处理
-(void)stopActivityIndicatorView:(NSTimer*)timer
 
{
    UIActivityIndicatorView*aiv=timer.userInfo;
    [aiv stopAnimating];
    UIAlertView *alert=[[UIAlertViewalloc]init];
    alert.message=@"加载完毕";
    [alert addButtonWithTitle:@"确定"];
    [alert show];
}

#pragma  mark 开关控件的创建

-(void)testSwitch
{
    UISwitch *myswicth=[[UISwitchalloc]initWithFrame:CGRectMake(100, 100, 100, 30)];
    NSLog(@"%f %f",myswicth.frame.size.width,myswicth.frame.size.height);
    [myswicth setOn:YES animated:YES];
    //开关控件的简单设置
    //设置状态
    myswicth.on=NO;
    myswicth.onTintColor=[UIColor redColor];
    myswicth.tintColor=[UIColor greenColor];
    
    myswicth.thumbTintColor=[UIColorblackColor];
    //事件处理
    [myswicth addTarget:self action:@selector(dealswitch:)forControlEvents:UIControlEventValueChanged];
    [self.view addSubview: myswicth];
    
}
//switch的事件处理
-(void)dealswitch:(UISwitch*)myswitch
{
    //关掉为0  开启为1
    NSLog(@"%d",myswitch.on);
    if (myswitch.on) {
        // 处理开启的任务
    }
    
}