UI连载五--常用UI控件—Label、Button、UITextField、UIImageView、UISlider、UISwitch、UIActivityIndicatorView等

#pragma mark -UILabel
- (void)_initLabel
{
    UILabel *textLable = [[UILabelalloc]initWithFrame:CGRectMake(10,30,150,250)];
    textLable.backgroundColor= [UIColorgrayColor];
    //设置文本内容
    textLable.text= @"good morning hehehehehe good morning hehehehehe";
    //设置字体, systemFont使用系统的字体，大小10
    textLable.font= [UIFontsystemFontOfSize:16];
    //设置粗体

//    textLable.font = [UIFont boldSystemFontOfSize:16];

    //字体类UIFont
//    NSArray *familyNames = [UIFont familyNames];
//    NSLog(@"familyNames is %@", familyNames);
//    textLable.font = [UIFont fontWithName:@"Zapf Dingbats" size:16];
   
    //设置字体颜色

    textLable.textColor= [UIColororangeColor];

    //设置文本对齐方式

    textLable.textAlignment= NSTextAlignmentCenter;

    //设置当前的显示行数，默认是1行,如果设为0，是自动换行

    textLable.numberOfLines= 0;

    //自动根据文本调整宽度和高度
    [textLable sizeToFit];

//    NSLog(@"textLabel is %@", textLable);

    [self.windowaddSubview:textLable];

}

#pragma mark -UIButton
- (void)_initButton
{
    UIButton *button = [UIButtonbuttonWithType:UIButtonTypeCustom];
    button.frame= CGRectMake(10,180,90,44);
    button.backgroundColor= [UIColorgreenColor];
    //设置显示标题，标题总是需要跟状态绑定到一起的
//    button.titleLabel.text = @"hehe";   //错误，不能这样设置title
    /*
     typedef NS_OPTIONS(NSUInteger, UIControlState) {
     UIControlStateNormal       = 0,
     UIControlStateHighlighted  = 1 << 0,                  // used when UIControl isHighlighted is set
     UIControlStateDisabled     = 1 << 1,
     UIControlStateSelected     = 1 << 2,                  // flag usable by app (see below)
     UIControlStateApplication  = 0x00FF0000,              // additional flags available for application use
     UIControlStateReserved     = 0xFF000000               // flags reserved for internal framework use
     };
     */
    [button setTitle:@"hehe"forState:UIControlStateNormal];
    //设置高亮状态下的title
//    [button setTitle:@"haha" forState:UIControlStateHighlighted];
    //设置选中状态下的title

//    [button setTitle:@"hihi" forState:UIControlStateSelected];

    //设置按钮是否选中

//    button.selected = true;

    //设置标题的字体

    button.titleLabel.font= [UIFontboldSystemFontOfSize:20];

    //设置标题的颜色
    [button setTitleColor:[UIColorredColor]forState:UIControlStateNormal];

//    [button setTitleColor:[UIColor yellowColor] forState:UIControlStateSelected];

    //获取图片  imageNamed:在当前工程目录下找到名字为“”的图片,如果图片是png格式的，可以不加.png，但是建议还是添加上
    UIImage *image1 = [UIImageimageNamed:@"back_on_black.png"];
    UIImage *image2 = [UIImageimageNamed:@"back_on.png"];

    //设置背景图片-----图片会随着按钮的frame改变而拉伸
//    [button setBackgroundImage:image1 forState:UIControlStateNormal];
//    //设置高亮状态下的图片
//    [button setBackgroundImage:image2 forState:UIControlStateHighlighted];
   
    //设置图片-----图片不会被拉伸--但是imageView上面不能显示Title
    [button setImage:image1 forState:UIControlStateNormal];

    [button setImage:image2 forState:UIControlStateHighlighted];

    //给按钮添加点击事件

    [button addTarget:selfaction:@selector(btnClick:)forControlEvents:UIControlEventTouchUpInside];

    //设置titleLabel的偏移量

//    [button setTitleEdgeInsets:UIEdgeInsetsMake(0, -100, 0, 0)];

//    [button setImageEdgeInsets:UIEdgeInsetsMake(0, 30, 0, 0)];

    //设置按钮是否可用

//    button.enabled = NO;

    //是否相应触摸时间

//    button.userInteractionEnabled = NO;

    [self.windowaddSubview:button];

}

- (void)btnClick:(UIButton*)btn
{
    NSLog(@"btnClick");
//    btn.selected = !btn.selected;

}

#pragma mark -UITextField

//文本输入框

- (void)_initTextField

{

    //如果需要在模拟器中调用电脑的键盘使用快捷键：command+ shift+ k

    UITextField *textField = [[UITextFieldalloc]initWithFrame:CGRectMake(100,100,200,30)];

    textField.tag= 100;
    //设置输入框的边框样式，默认无边框
    textField.borderStyle= UITextBorderStyleRoundedRect;
    //设置输入文字的字体
    textField.font= [UIFontboldSystemFontOfSize:18];
    //设置文字的颜色
    textField.textColor= [UIColorredColor];
    //设置或者获取当前文本输入框的内容
//    textField.text = @"hehehehe";
    //设置对齐方式
    textField.textAlignment= NSTextAlignmentCenter;
    //设置首字母是否自动大写
//    textField.autocapitalizationType = UITextAutocapitalizationTypeWords;
    //设置自动单词提示
//    textField.autocorrectionType = UITextAutocorrectionTypeNo;

    //输入框为空时的提示文本

    textField.placeholder= @"请输入登陆邮箱";

    //修改键盘上的return按钮上的标题

    textField.returnKeyType= UIReturnKeyGo;

    //设置输入框是否安全输入

//    textField.secureTextEntry = YES;

    //纯数字键盘

//    textField.keyboardType = UIKeyboardTypeNumberPad;

    //开启清楚按钮

    textField.clearButtonMode= UITextFieldViewModeWhileEditing;

//    //成为第一响应者，弹出键盘

//    [textField becomeFirstResponder];

//    //失去第一响应者，收起键盘

//    [textField resignFirstResponder];

   

    //设置代理

    textField.delegate= self;

    [self.windowaddSubview:textField];

    UIButton *btn = [UIButtonbuttonWithType:UIButtonTypeContactAdd];
    [btn addTarget:selfaction:@selector(btnClick:)forControlEvents:UIControlEventTouchUpInside];
    btn.frame= CGRectMake(0,100,50,50);

    [self.windowaddSubview:btn];

}

- (void)btnClick:(UIButton*)btn
{

    UITextField *textField = (UITextField*)[self.windowviewWithTag:100];

    [textField resignFirstResponder];

}

#pragma mark -UITextFieldDelegate
//将要开始编辑
- (BOOL)textFieldShouldBeginEditing:(UITextField*)textField
{
    NSLog(@"将要开始编辑");
    //返回YES表示可以继续编辑，返回NO是阻止编辑
    return YES;

}

//已经开始编辑了
- (void)textFieldDidBeginEditing:(UITextField*)textField
{
    NSLog(@"正在编辑");

}

//已经结束编辑

- (void)textFieldDidEndEditing:(UITextField*)textField
{
    NSLog(@"已经结束");

}

//输入框的内容被修改的时候调用的协议方法----重要
- (BOOL)textField:(UITextField*)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString*)string
{
    NSString *lastStr = textField.text;
    NSString *rangeStr =NSStringFromRange(range);

    NSString *replaceStr = string;

    NSLog(@"lastStr is %@", lastStr);

    NSLog(@"rangeStr is %@", rangeStr);

    NSLog(@"replaceStr is %@", replaceStr);

    return YES;

}

#pragma mark -UIImageView

//图片视图（ImageView）
- (void)_initImageView
{
    //创建图片对象

    UIImage *img = [UIImageimageNamed:@"scene2.jpg"];

    UIImageView *imgView = [[UIImageViewalloc]initWithFrame:CGRectMake(0,100,300,100)];
//    imgView.image = img;

    imgView.backgroundColor= [UIColorredColor];

    //设置ImgView高亮状态下的图片
//    imgView.highlightedImage = [UIImage imageNamed:@"scene1.jpg"];
//    imgView.highlighted = YES;  //设置为高亮状态
   
    //设置内容模式
    /*
     UIViewContentModeScaleToFill, //横向和纵向都拉伸到边框
     UIViewContentModeScaleAspectFit, //等比例拉伸，当某一方向到头时，则不拉伸
     UIViewContentModeScaleAspectFill, //等比例拉伸，当某一方向到头时，则继续拉伸到另一方向也到头
     */

    imgView.contentMode= UIViewContentModeScaleAspectFit;

    //imgView设置动画图片组
    UIImage *img1 = [UIImageimageNamed:@"scene1.jpg"];
    UIImage *img2 = [UIImageimageNamed:@"scene2.jpg"];
    UIImage *img3 = [UIImageimageNamed:@"scene3.jpg"];
    UIImage *img4 = [UIImageimageNamed:@"scene4.jpg"];

    UIImage *img5 = [UIImageimageNamed:@"scene5.jpg"];

    NSArray *images = @[img1, img2, img3, img4, img5];

    //设置动画播放的集合

    imgView.animationImages= images;

    //设置播放动画的时间
    imgView.animationDuration= 5;
    //开始动画

//    [imgView startAnimating];

    [self.windowaddSubview:imgView];

    UIButton *btn = [UIButtonbuttonWithType:UIButtonTypeContactAdd];
    btn.frame= CGRectMake(0,50,40,40);
    [btn addTarget:selfaction:@selector(btnClick:)forControlEvents:UIControlEventTouchUpInside];
    //注意：imageView默认的触摸事件是关闭的

    imgView.userInteractionEnabled= YES;

    [imgView addSubview:btn];

}

- (void)btnClick:(UIButton*)btn
{
    NSLog(@"hehehe");

}

#pragma mark -UISlider

//滑块

- (void)_initSlider

{

    //slider显示的高度是固定的

    UISlider *slider = [[UISlideralloc]initWithFrame:CGRectMake(10,100,300,30)];

//    slider.backgroundColor = [UIColor redColor];

    [self.windowaddSubview:slider];

    //设置滑动的最大值和最小值
    slider.maximumValue= 100;

    slider.minimumValue= 0;

    //设置初始值

    slider.value= 50;

    //设置滑动条左边|右边的颜色
//    [slider setMinimumTrackTintColor:[UIColor greenColor]];
//    [slider setMaximumTrackTintColor:[UIColor yellowColor]];

    //设置滑动条的左右边的图片
    UIImage *image1 = [UIImageimageNamed:@"com_slider_min_l-Decoded"];

    UIImage *image2 = [UIImageimageNamed:@"com_slider_min_r-Decoded"];

    //设置图片的拉伸点
//    image1 = [image1 stretchableImageWithLeftCapWidth:5 topCapHeight:0];
//    image2 = [image2 stretchableImageWithLeftCapWidth:5 topCapHeight:0];

    image1 = [image1 resizableImageWithCapInsets:UIEdgeInsetsMake(0,5,0,5)];

    image2 = [image2 resizableImageWithCapInsets:UIEdgeInsetsMake(0,5,0,5)];

    [slider setMinimumTrackImage:image1forState:UIControlStateNormal];

    [slider setMaximumTrackImage:image2 forState:UIControlStateNormal];

    //设置滑块的图片
    UIImage *image3 = [UIImageimageNamed:@"com_thumb_max_n-Decoded"];

    UIImage *image4 = [UIImageimageNamed:@"com_thumb_max_h-Decoded"];

    [slider setThumbImage:image3forState:UIControlStateNormal];

    [slider setThumbImage:image4 forState:UIControlStateHighlighted];

    //设置滑块按钮的颜色
//    [slider setThumbTintColor:[UIColor redColor]];

    //添加事件

    [slider addTarget:selfaction:@selector(sliderAction:)forControlEvents:UIControlEventValueChanged]; 

}

- (void)sliderAction:(UISlider*)slider
{
    NSLog(@"slider value is %.2f", slider.value);

}

#pragma mark -UISwitch

- (void)_initSwitch
{
    UISwitch *switchUI = [[UISwitchalloc]initWithFrame:CGRectMake(10,200,100,100)];

    [self.windowaddSubview:switchUI];

    //默认开

    switchUI.on= YES;

    //添加事件

    [switchUI addTarget:selfaction:@selector(switchAction:)forControlEvents:UIControlEventValueChanged];  

}

- (void)switchAction:(UISwitch*)switchUI
{
    if (switchUI.on) {
        NSLog(@"开启");
    }else{
        NSLog(@"关闭");
    }
}

//风火轮-------------UIActivityIndicatorView

- (void)_UIActivityIndicatorView
{
    UIActivityIndicatorView *activity = [[UIActivityIndicatorViewalloc]initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleGray];
    activity.frame= CGRectMake(100,100,0,0);
    activity.backgroundColor= [UIColorredColor];
    //开始转动
    [activity startAnimating];
   
    //停止转动并且隐藏
//    [activity stopAnimating];
   
    [self.windowaddSubview:activity];
}

//页面控件--------------UIPageControl

- (void)_UIPageControl
{
    UIPageControl *pageControl = [[UIPageControlalloc]initWithFrame:CGRectMake(100,200,200,20)];
    //设置总页数
    pageControl.numberOfPages= 5;
    //设置当前选中的页面的索引
    pageControl.currentPage= 2;
    //添加点击事件
    [pageControl addTarget:selfaction:@selector(pageAction:)forControlEvents:UIControlEventValueChanged];
    pageControl.backgroundColor= [UIColorredColor];
    [self.windowaddSubview:pageControl];
}

- (void)pageAction:(UIPageControl*)pageControl
{
    NSLog(@"pageControl.currentPage is %ld", pageControl.currentPage);
}

//进度条--------------UIProgressView

- (void)_initProgress
{
    UIProgressView *progress = [[UIProgressViewalloc]initWithProgressViewStyle:UIProgressViewStyleDefault];
    progress.frame= CGRectMake(10,300,300,0);
    progress.backgroundColor= [UIColorredColor]; //无效
    //设置进度值
//    progress.progress = 0.5;
    //设置已经加载的进度条的颜色
    progress.progressTintColor= [UIColorgreenColor];
    //设置未加载的进度条的颜色
    progress.trackTintColor= [UIColoryellowColor];
    [self.windowaddSubview:progress];
   
    [NSTimerscheduledTimerWithTimeInterval:0.2
                                     target:self
                                   selector:@selector(timeAction:)
                                   userInfo:progress
                                    repeats:true];
   
}

- (void)timeAction:(NSTimer*)timer
{
    UIProgressView *progress = timer.userInfo;
    progress.progress+= 0.01;
   
    if (progress.progress>= 1) {
        [timer invalidate];
    }
}