03_常用UI控件

来源：互联网发布：涙は知っている编辑：程序博客网时间：2024/05/17 08:47
/*________________________________UILabel________________________________________*/- (void)initLabel {        UILabel *textLabel = [[UILabel alloc] initWithFrame:CGRectMake(10, 30, 100, 50)];    textLabel.backgroundColor = [UIColor grayColor];    textLabel.text = @"无限互联3G学院";    //创建字体对象，systemFontOfSize：使用系统字体，大小：12    UIFont *font = [UIFont systemFontOfSize:16];    //    UIFont *font = [UIFont fontWithName:@"Arial Hebrew" size:12];    //[UIFont familyNames] 获取所有的字体名称//    NSLog(@"%@",[UIFont familyNames]);        textLabel.font = font;        //设置字体的颜色    textLabel.textColor = [UIColor greenColor];        //文本显示位置: 居左、居中、居右    textLabel.textAlignment = NSTextAlignmentCenter;        //如果是0，则自动折行//    textLabel.numberOfLines = 0;        //自动根据文本内容调整宽度与高度    [textLabel sizeToFit];        [self.window addSubview:textLabel];        [textLabel release];    }#pragma mark - UIButton/*________________________________UIButton________________________________________*/- (void)initButton {        UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect];    button.frame = CGRectMake(10, 80, 100, 30);        //设置一般状态显示的标题    [button setTitle:@"保存" forState:UIControlStateNormal];    //高亮状态显示的文本    [button setTitle:@"正在点击.." forState:UIControlStateHighlighted];        //注意：title标题需要和一个状态绑定    //错误，没有为此标题设置状态，无法显示//    button.titleLabel.text = @"保存";        //设置标题颜色，不同的状态对应不同的颜色    [button setTitleColor:[UIColor greenColor] forState:UIControlStateNormal];    [button setTitleColor:[UIColor redColor] forState:UIControlStateHighlighted];    //字体颜色也需要绑定状态，//     button.titleLabel.textColor = [UIColor redColor];  //错误，没有绑定状态        //设置标题文本的字体    button.titleLabel.font = [UIFont systemFontOfSize:12];        //为按钮添加点击事件    //UIControlEventTouchUpInside: 按下、松开点击，必须在按钮范围之内    [button addTarget:self action:@selector(buttonAction:)     forControlEvents:UIControlEventTouchUpInside];        [self.window addSubview:button];    }//定义图片按钮- (void)initCustomButton {    UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];    button.frame = CGRectMake(200, 80, 90, 44);        //设置一般状态显示的标题    [button setTitle:@"保存" forState:UIControlStateNormal];    //高亮状态显示的文本    [button setTitle:@"正在点击.." forState:UIControlStateHighlighted];        //UIImage 用于存储图片数据//    UIImage *image1 = [UIImage imageNamed:@"back_on_black"]; //back_on_black.png  png可以省略//    UIImage *image2 = [UIImage imageNamed:@"back_on.png"];//    [button setImage:image1 forState:UIControlStateNormal];//    [button setImage:image2 forState:UIControlStateHighlighted];    //title与image 二者只能取一个        UIImage *image1 = [UIImage imageNamed:@"back_on_black"]; //back_on_black.png  png可以省略    UIImage *image2 = [UIImage imageNamed:@"back_on.png"];    [button setBackgroundImage:image1 forState:UIControlStateNormal];    [button setBackgroundImage:image2 forState:UIControlStateHighlighted];        button.titleLabel.font = [UIFont systemFontOfSize:14];        //    [button setTitle:@"选中了" forState:UIControlStateSelected];//    //设置是否选中状态//    button.selected = YES;        //设置按钮是否为警用状态//    button.enabled = NO;        //是否响应触摸事件    button.userInteractionEnabled = NO;        [self.window addSubview:button];}- (void)buttonAction:(UIButton *)button {    NSLog(@"按钮被点击了");}#pragma mark - UITextField/*________________________________UITextField________________________________________*/- (void)initTextField {    UITextField *textField = [[UITextField alloc] initWithFrame:CGRectMake(10, 130, 200, 30)];    //设置输入框的边框显示样式    textField.borderStyle = UITextBorderStyleLine;    [self.window addSubview:textField];        //设置输入框中文字的字体    textField.font = [UIFont systemFontOfSize:20];    //设置文字的颜色    textField.textColor = [UIColor redColor];        //设置输入框中的文本//    textField.text = @"test";        //设置首字母是否自动大写    textField.autocapitalizationType = UITextAutocapitalizationTypeNone;        //输入框为空时，显示的提示文字    textField.placeholder = @"请输入邮箱地址";        //清除按钮模式    textField.clearButtonMode = UITextFieldViewModeWhileEditing;        //设置文本的显示位置：居中、居左、居右    textField.textAlignment = NSTextAlignmentCenter;        //设置键盘上return键的显示样式    textField.returnKeyType = UIReturnKeySearch;        //是否安全输入    textField.secureTextEntry = YES;        //设置键盘类型,UIKeyboardTypeNumberPad 数字键盘//    textField.keyboardType = UIKeyboardTypePhonePad;        [textField release];            textField.delegate = self;        //弹出键盘//    [textField becomeFirstResponder];    }#pragma mark - UITextField delegate//将要编辑：键盘弹出之前调用的- (BOOL)textFieldShouldBeginEditing:(UITextField *)textField {        NSLog(@"将要开始编辑");        return YES;    }//已经开始编辑,键盘弹出之后调用- (void)textFieldDidBeginEditing:(UITextField *)textField {    NSLog(@"已经开始编辑");}//return按钮被点击时调用- (BOOL)textFieldShouldReturn:(UITextField *)textField {    NSLog(@"textFieldShouldReturn");        //收起键盘    [textField resignFirstResponder];        return YES;}//将要结束编辑, 收起键盘时调用- (BOOL)textFieldShouldEndEditing:(UITextField *)textField {    NSLog(@"textFieldShouldEndEditing 结束编辑");    return YES;}#pragma mark - UIImageView/*________________________________UIImageView________________________________________*/- (void)_initImageView {        UIImage *image = [UIImage imageNamed:@"scene1.jpg"];    UIImageView *imageView = [[UIImageView alloc] initWithImage:image];    //设置高亮状态显示的图片    imageView.highlightedImage = [UIImage imageNamed:@"scene2.jpg"];        imageView.frame = CGRectMake(10, 200, 100, 100);    //    imageView.highlighted = YES;        //设置内容模式，可以防止图片比例被拉伸//    imageView.contentMode = UIViewContentModeScaleAspectFit;        UIImage *image1 = [UIImage imageNamed:@"scene1.jpg"];    UIImage *image2 = [UIImage imageNamed:@"scene2.jpg"];    UIImage *image3 = [UIImage imageNamed:@"scene3.jpg"];    UIImage *image4 = [UIImage imageNamed:@"scene4.jpg"];    UIImage *image5 = [UIImage imageNamed:@"scene5.jpg"];    NSArray *images = [NSArray arrayWithObjects:image1,image2,image3,image4,image5, nil];        //动画播放图片的集合    imageView.animationImages = images;    //动画持续时间    imageView.animationDuration = 1;        //开始播放动画    [imageView startAnimating];        //停止动画    [imageView stopAnimating];            //图片视图的userInteractionEnabled 触摸事件默认是关闭的    //imageView.userInteractionEnabled = NO;            [self.window addSubview:imageView];}#pragma mark - UISlider/*____________________________UISlider____________________________________*/- (void)_initSlider {        //UISlider 的高度是固定的    UISlider *slider = [[UISlider alloc] initWithFrame:CGRectMake(10, 320, 200, 50)];    //添加滑动的事件,UIControlEventValueChanged:值被修改的事件    [slider addTarget:self action:@selector(sliderAction:)     forControlEvents:UIControlEventValueChanged];        //设置滑动最大数值    slider.maximumValue = 100;    //设置滑动最小数值    slider.minimumValue = 50;        UIImage *image = [UIImage imageNamed:@"com_slider_min_l-Decoded.png"];        //设置图片拉伸点的位置    UIImage *image2 = [image stretchableImageWithLeftCapWidth:3 topCapHeight:0];        //设置滑动条左边的颜色    //[slider setMinimumTrackImage:image2 forState:UIControlStateNormal];    //设置滑动条左边的颜色    [slider setMinimumTrackTintColor:[UIColor redColor]];    [slider setMaximumTrackTintColor:[UIColor blueColor]];        //修改滑动按钮图片    [slider setThumbImage:[UIImage imageNamed:@"com_thumb_max_n-Decoded.png"]                 forState:UIControlStateNormal];    [slider setThumbImage:[UIImage imageNamed:@"com_thumb_max_h-Decoded.png"]                 forState:UIControlStateHighlighted];        [self.window addSubview:slider];        [slider release];    }- (void)sliderAction:(UISlider *)slider {        NSLog(@"%f",slider.value);    }#pragma mark - UISwitch/*____________________________UISlider____________________________________*/- (void)_initSwitch {    //UISwitch的宽、高是固定的    UISwitch *switchUI = [[UISwitch alloc] initWithFrame:CGRectMake(10, 360, 0, 0)];        switchUI.on = YES;        [switchUI addTarget:self action:@selector(switchAction:)       forControlEvents:UIControlEventValueChanged];     //设置开、关，并且添加动画效果    [switchUI setOn:NO animated:YES];        [self.window addSubview:switchUI];    [switchUI release];    }- (void)switchAction:(UISwitch *)switchUI {        if (switchUI.on) {        NSLog(@"开");    } else {        NSLog(@"关");        }    }#pragma mark - UISegmentedControl/*____________________________UISegmentedControl____________________________________*/- (void)_initSegmented {        NSArray *titles = @[@"电影",@"电视剧",@"综艺"];    UISegmentedControl *sc = [[UISegmentedControl alloc] initWithItems:titles];        sc.segmentedControlStyle = UISegmentedControlStyleBar;        sc.frame = CGRectMake(10, 400, 200, 30);        //不能这样修改选项按钮的背景颜色//    sc.backgroundColor = [UIColor redColor];    //设置选项按钮的颜色    sc.tintColor = [UIColor redColor];        //设置选择项的索引    sc.selectedSegmentIndex = 2;        //添加事件    [sc addTarget:self action:@selector(segmentAction:)        forControlEvents:UIControlEventValueChanged];            [self.window addSubview:sc];}- (void)segmentAction:(UISegmentedControl *)segment {    if (segment.selectedSegmentIndex == 0) {        NSLog(@"切换电影");    } else if(segment.selectedSegmentIndex == 1) {        NSLog(@"切换电视剧");    } else if(segment.selectedSegmentIndex == 2) {        NSLog(@"切换综艺");    }}#pragma mark - UIActivityIndicatorView/*_____________________________UIActivityIndicatorView_____________________________*/- (void)_initActivityIndicator {    //风火轮圆半径是固定的    UIActivityIndicatorView *activity = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhite];    activity.backgroundColor = [UIColor blueColor];    activity.frame = CGRectMake(10, 430, 0, 0);        //开始转动    [activity startAnimating];        //停止转动，并且隐藏//    [activity stopAnimating];        [self.window addSubview:activity];}#pragma mark - UIPageControl/*_____________________________UIPageControl_____________________________*/- (void)_initPageControll {    UIPageControl *pageCtrl = [[UIPageControl alloc] initWithFrame:CGRectMake(10, 440, 100, 20)];    pageCtrl.backgroundColor = [UIColor grayColor];        //总页数    pageCtrl.numberOfPages = 3;        //当前选中的页数    pageCtrl.currentPage = 2;        [self.window addSubview:pageCtrl];        [pageCtrl release];    }#pragma mark - UIAlertView/*_____________________________UIAlertView_____________________________*/- (void)_initAerltView {    UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect];    [button setTitle:@"弹出Alert" forState:UIControlStateNormal];    [button addTarget:self action:@selector(showAlert) forControlEvents:UIControlEventTouchUpInside];    button.frame = CGRectMake(100, 430, 100, 30);    [self.window addSubview:button];}- (void)showAlert {    UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@"警告"                                                        message:@"密码输入错误"                                                       delegate:self                                              cancelButtonTitle:@"取消"                                              otherButtonTitles:@"确定",/*@"按钮1",@"按钮2",*/ nil];    [alertView show];    [alertView release];}#pragma mark - UIAlertView delegate- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex {    if (buttonIndex == 0) {        NSLog(@"取消");    } else if(buttonIndex == 1) {        NSLog(@"确定");    }}#pragma mark - UIActionSheet/*_____________________________UIActionSheet_____________________________*/- (void)_initActionSheet {        UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect];    [button setTitle:@"弹出Sheet" forState:UIControlStateNormal];    [button addTarget:self action:@selector(showSheet) forControlEvents:UIControlEventTouchUpInside];    button.frame = CGRectMake(200, 430, 100, 30);    [self.window addSubview:button];}- (void)showSheet {    UIActionSheet *actionSheet = [[UIActionSheet alloc] initWithTitle:@"提示"                                                             delegate:self cancelButtonTitle:@"取消"                                               destructiveButtonTitle:@"确定"                                                    otherButtonTitles:@"按钮1",@"按钮2", nil];    [actionSheet showInView:self.window];    [actionSheet release];}#pragma mark UIActionSheet delegate- (void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex {    NSLog(@"%d",buttonIndex);}#pragma mark - UIProgressView/*_____________________________UIProgressView_____________________________*/- (void)_initProgress {    UIProgressView *progress = [[UIProgressView alloc] initWithProgressViewStyle:UIProgressViewStyleBar];    progress.frame = CGRectMake(10, 460, 200, 0);    //进度值,范围(0~1)    progress.progress = 0.5;    progress.tag = 201;        //设置已加载的进度条颜色，左边的进度条    [progress setProgressTintColor:[UIColor redColor]];    //设置未加载的进度条颜色，右边的进度条    progress.trackTintColor = [UIColor greenColor];        [self.window addSubview:progress];        [NSTimer scheduledTimerWithTimeInterval:0.2 target:self selector:@selector(progressAction:) userInfo:nil repeats:YES];}- (void)progressAction:(NSTimer *)timer {    UIProgressView *progress = (UIProgressView *)[self.window viewWithTag:201];    progress.progress+=0.01;        if (progress.progress == 1) {        [timer invalidate];    }}#pragma mark - UIToolbar/*_____________________________UIToolbar_____________________________*/- (void)_initToolbar {        UIToolbar *toolbar = [[UIToolbar alloc] initWithFrame:CGRectMake(100, 200, 200, 49)];    toolbar.barStyle = UIBarStyleDefault;    [self.window addSubview:toolbar];    [toolbar release];        //创建工具栏上的按钮    /*     UIBarButtonItem 的x\y坐标UIToolbar自动会调整，不用设定       */    UIBarButtonItem *item1 = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemDone target:self action:@selector(itemAction)];        UIBarButtonItem *item2 = [[UIBarButtonItem alloc] initWithTitle:@"学院" style:UIBarButtonItemStyleBordered target:self action:@selector(itemAction)];//    [[UIBarButtonItem alloc] initWithImage:<#(UIImage *)#> style:<#(UIBarButtonItemStyle)#> target:<#(id)#> action:<#(SEL)#>];            UIBarButtonItem *item3 = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFixedSpace target:nil action:nil];    item3.width = 20;        UIButton *button = [UIButton buttonWithType:UIButtonTypeContactAdd];//    button.frame = CGRectMake(0, 0, 20, 20);    [button addTarget:self action:@selector(itemAction) forControlEvents:UIControlEventTouchUpInside];    UIBarButtonItem *item4 = [[UIBarButtonItem alloc] initWithCustomView:button];        NSArray *items = [NSArray arrayWithObjects:item1,item2,item3,item4, nil];//    [toolbar setItems:items];    toolbar.items = items;}- (void)itemAction {    NSLog(@"item");}
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