UI常用控件总结
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UIPageControl
//设置pageControl UIPageControl *pageControl = [[UIPageControl alloc] initWithFrame:CGRectMake(0, 0, 100, 50)]; //设置点的颜色 pageControl.pageIndicatorTintColor = [UIColor blackColor]; //设置当前的页面的点颜色 pageControl.currentPageIndicatorTintColor = [UIColor greenColor]; //居中 pageControl.center = self.view.center; //设置页面个数(必须设置,否则将不会显示) pageControl.numberOfPages = 8; //设置默认位置(从0开始) pageControl.currentPage = 1; //添加 [self.view addSubview:pageControl];
UILabel
//设置label UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, 100, 30)]; //设置label的背景颜色 label.backgroundColor = [UIColor lightGrayColor]; //居中 label.center = self.view.center; //设置内容 label.text = @"hello"; //设置字体颜色 label.textColor = [UIColor blackColor]; //设置字体大小 label.font = [UIFont systemFontOfSize:12]; //设置内容对齐方式 label.textAlignment = NSTextAlignmentCenter; //设置内容的阴影 label.shadowColor = [UIColor blackColor]; //设置阴影的大小 label.shadowOffset = CGSizeMake(0, 1); //添加 [self.view addSubview:label];
UITextField
//设置TextField UITextField *textField = [[UITextField alloc] initWithFrame:CGRectMake(0, 0, 200, 50)]; _textField = textField; //居中 textField.center = self.view.center; //设置文本框类型 textField.borderStyle = UITextBorderStyleRoundedRect; //设置文本框颜色 textField.backgroundColor = [UIColor lightGrayColor]; //设置输入提示 textField.placeholder = @"请输入账号"; //设置初始内容 // textField.text = @"hello"; //设置字体颜色 textField.textColor = [UIColor blueColor]; //设置字体大小 // textField.font = [UIFont systemFontOfSize:26]; //宽度自适应 textField.adjustsFontSizeToFitWidth = YES; //在开始编辑的时候将原来的内容清空 textField.clearsOnBeginEditing = YES; //清空的小叉号 textField.clearButtonMode = UITextFieldViewModeWhileEditing; //当左侧需要添加对象时,采用此方法显示(右侧同样适用) textField.leftViewMode = UITextFieldViewModeAlways; //内容设置成密码格式 // textField.secureTextEntry = YES; //设置首字母自动大写(按句子划分,以回车为标志,同样也可以单词等划分) textField.autocapitalizationType = UITextAutocapitalizationTypeSentences; //单词自动纠正 textField.autocorrectionType = UITextAutocorrectionTypeDefault; //设置回车键类型 textField.returnKeyType = UIReturnKeyJoin; //设置键盘类型 textField.keyboardType = UIKeyboardTypePhonePad; //设置键盘的颜色(黑/白) textField.keyboardAppearance = UIKeyboardAppearanceDark; //添加 [self.view addSubview:textField]; //设置键盘上方工具条(只需设置工具条尺寸即可) UIView *inputAccess = [[UIView alloc] initWithFrame:CGRectMake(0, 0, kWidth, 30)]; inputAccess.backgroundColor = [UIColor greenColor]; textField.inputAccessoryView = inputAccess; //自定义键盘 // UIView *inputView = [[UIView alloc]initWithFrame:CGRectMake(0, 0, kWidth, 200)]; // inputView.backgroundColor = [UIColor orangeColor]; // textField.inputView = inputView; //设置label来显示文本框输入的内容 UILabel *textLabel = [[UILabel alloc] initWithFrame:CGRectMake((kWidth-200)/2.0, 20, 200, 50)]; _textLabel = textLabel; textLabel.backgroundColor = [UIColor lightGrayColor]; [self.view addSubview:textLabel]; //系统自带的代理方法 textField.delegate = self;
- 注意:以下方法均是系统自带的代理方法,需要设置:textField.delegate = self;
- pragma mark 关闭键盘及显示输入内容
-(void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event{ //放弃第一响应者(关闭键盘) [_textField resignFirstResponder]; //显示框中显示文本框输入的内容(在此处调用,将不会同步) _textLabel.text = _textField.text; }
- pragma mark 文本框将要被编辑的时候调用
-(BOOL)textFieldShouldBeginEditing:(UITextField *)textField{ NSLog(@"%s",__func__); return YES; }
- pragma mark 文本框开始被编辑的时候调用
-(void)textFieldDidBeginEditing:(UITextField *)textField{ NSLog(@"%s",__func__); }
- pragma mark 文本框将要结束编辑的时候
-(BOOL)textFieldShouldReturn:(UITextField *)textField{ NSLog(@"%s",__func__); return self; }
- pragma mark 文本框结束编辑的时候
-(void)textFieldDidEndEditing:(UITextField *)textField{ NSLog(@"%s",__func__); }
UIImageView
//设置imageView UIImageView *imageView = [[UIImageView alloc] initWithFrame:[UIScreen mainScreen].bounds]; //设置图片 imageView.image = [UIImage imageNamed:@"1"]; //开启用户交互(当按钮加在imageView上是,imageView需要开始用户交互) imageView.userInteractionEnabled = YES; //添加 [self.view addSubview:imageView]; //设置一个数组用来存放动画图片(假设该数组中已经存放好图片) NSMutableArray *animateArray = [NSMutableArray new]; //设置要动画的图片 imageView.animationImages = animateArray; //设置动画次数 imageView.animationRepeatCount = 10; //设置动画时长 imageView.animationDuration = 5; [imageView setAnimationDuration:5]; //动画开始 [imageView startAnimating]; //动画结束 [imageView stopAnimating];
UISegmentedControl
NSArray *array = @[@"黄色",@"红色",@"绿色"]; //设置UISegmentedControl UISegmentedControl *segmentControl = [[UISegmentedControl alloc] initWithItems:array]; _segmentControl = segmentControl; //设置尺寸 segmentControl.frame = CGRectMake(0, 0, 200, 30); //居中 segmentControl.center = self.view.center; //设置记录选中状态 segmentControl.momentary = NO; //获取当前分块个数 NSInteger num = segmentControl.numberOfSegments; NSLog(@"%ld",num); //设置背景色 segmentControl.backgroundColor = [UIColor grayColor]; //设置默认选中的按钮(从0开始) segmentControl.selectedSegmentIndex = 2; //通过属性字典,设置标题的颜色跟字体的大小 NSDictionary *dic = @{NSForegroundColorAttributeName:[UIColor blackColor],NSFontAttributeName:[UIFont systemFontOfSize:14],NSUnderlineStyleAttributeName:@1}; [segmentControl setTitleTextAttributes:dic forState:UIControlStateNormal]; //监视点击事件(这里选择UIControlEventValueChanged事件，通过selectedSegmentIndex来判断选中的是哪个) [segmentControl addTarget:self action:@selector(change:) forControlEvents:UIControlEventValueChanged]; //添加 [self.view addSubview:segmentControl];
- pragma mark 点击事件change
-(void) change:(UISegmentedControl *) seg{ //获取当前选中的索引 NSInteger index=seg.selectedSegmentIndex; switch (index) { case 0: self.view.backgroundColor=[UIColor redColor]; break; case 1: self.view.backgroundColor=[UIColor greenColor]; break; case 2: self.view.backgroundColor=[UIColor yellowColor]; break; default: break; } }
- pragma mark 点击空白处,插入,删除item
-(void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event{ //插入一个item [_segmentControl insertSegmentWithTitle:@"白色" atIndex:2 animated:YES]; //取消一个item [_segmentControl removeSegmentAtIndex:1 animated:YES]; }
UIProgressView
//设置进度条 UIProgressView *progressView = [[UIProgressView alloc] initWithFrame:CGRectMake(0, 0, 200, 40)]; //居中 progressView.center = self.view.center; //设置当前进度(默认范围0~1) progressView.progress = 0.5; //设置已经覆盖的进度颜色 progressView.progressTintColor = [UIColor blueColor]; //设置已经覆盖的进度图片 progressView.progressImage = [UIImage imageNamed:@"1"]; //设置轨道的颜色 progressView.trackTintColor = [UIColor grayColor]; //设置轨道图片 progressView.trackImage = [UIImage imageNamed:@"2"]; //添加 [self.view addSubview:progressView];
UIScrollView
//设置UIScrollView UIScrollView *scrollView = [[UIScrollView alloc] initWithFrame:CGRectMake(0, 0, kWidth, kHeight)]; _scrollView = scrollView; //设置代理 scrollView.delegate = self; //设置内容的大小 scrollView.contentSize = CGSizeMake(kWidth+100, kHeight+100); //去掉弹簧效果 scrollView.bounces = NO; //去掉滚动条 scrollView.showsHorizontalScrollIndicator = NO; scrollView.showsVerticalScrollIndicator = NO; //开启分页效果 scrollView.pagingEnabled = YES; //控制当前视图的位置 scrollView.contentOffset = CGPointMake(kWidth, 0); //添加 [self.view addSubview:scrollView];
- 注意:调用以下方法必须设置代理
- pragma mark 滚动视图在滚动过程中
-(void)scrollViewDidScroll:(UIScrollView *)scrollView{ }
- pragma mark 滚动视图在没次滚动结束后
-(void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView{ }
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