小菊花和UITextField

来源：互联网发布：新网站seo怎么优化编辑：程序博客网时间：2024/04/28 23:11

UIActivityIndicatorView

   self.view.backgroundColor = [UIColor yellowColor];        self.indicator =[[UIActivityIndicatorView alloc] initWithFrame:CGRectMake(100, 100, 100, 100)];    self.indicator.layer.borderWidth = 1;    self.indicator.backgroundColor = [UIColor redColor];    self.indicator.layer.cornerRadius = 10;    [self.view addSubview:self.indicator];    [self.indicator release];        [self.indicator startAnimating];

延迟一段时间调用方法

  [self performSelector:@selector(endIndicator) withObject:self afterDelay:5];

UITextField

 self.textView = [[UITextView alloc] initWithFrame:CGRectMake(0, 40, self.view.frame.size.width, 300)];    self.view.backgroundColor = [UIColor whiteColor];    //设置textview里面的字体颜色    self.textView.textColor = [UIColor blackColor];    //设置字体名字和字体大小    self.textView.font = [UIFont fontWithName:@"Arial" size:22.0];    //设置它的代理方法    self.textView.delegate = self;    //边框圆角    self.textView.layer.borderWidth = 2;    self.textView.layer.cornerRadius = 10;    //设置它的背景颜色    self.textView.backgroundColor = [UIColor clearColor];    //返回键的类型    self.textView.returnKeyType = UIReturnKeyDefault;    //键盘类型    self.textView.keyboardType = UIKeyboardTypeDefault;

 // placeHolder    self.placeHolderView = [[UITextView alloc] initWithFrame:self.textView.frame];    self.placeHolderView.text = @"程紧乐程紧乐程紧乐";    [self.view addSubview:self.placeHolderView];    self.placeHolderView.font = [UIFont fontWithName:@"Arial" size:22.0];    self.placeHolderView.textColor = [UIColor lightGrayColor];        //加入到整个页面中    [self.view addSubview: self.textView];    // 置顶    [self.view bringSubviewToFront:self.textView];    // 放到下面    //    [self.view sendSubviewToBack:(nonnull UIView *)]

下拉菜单

 UIMenuItem *markItem = [[UIMenuItem alloc]initWithTitle:@"标记" action:@selector(changeColor:)];    UIMenuItem *brightItem = [[UIMenuItem alloc] initWithTitle:@"高亮" action:@selector(bright:)];    UIMenuController *menu = [UIMenuController sharedMenuController];    [menu setMenuItems:[NSArray arrayWithObjects:markItem,brightItem, nil]];

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