UIkit-UIAlertContent

简单Demo

//注意！！！必须放在viewController的viewDidAppear里面，viewDidLoad里面不行
- (void)viewDidAppear:(BOOL)animated
{// 创建 UIAlertControllerUIAlertController *alertController = [UIAlertController alertControllerWithTitle:@"标题" message:@"这是消息" preferredStyle:UIAlertControllerStyleAlert];//添加自定义文本框[alertController addTextFieldWithConfigurationHandler:^(UITextField *textField) {//自定义文本框textField.placeholder = @"这是第一个文本框";textField.keyboardType = UIKeyboardTypeDefault;}];//添加第二个自定义文本框[alertController addTextFieldWithConfigurationHandler:^(UITextField *textField) {//自定义文本框textField.placeholder = @"这是第二个文本框";textField.keyboardType = UIKeyboardTypeDefault;}];UIAlertAction *okAction = [UIAlertActionactionWithTitle:@"确定"style:UIAlertActionStyleDefaulthandler:^(UIAlertAction *action) {// 处理确定按钮点击UITextField *textField = alertController.textFields.firstObject;NSString *enteredText = textField.text;UITextField *secTextField = alertController.textFields[1];NSString *secText = secTextField.text;// 根据需要处理输入的文本}];[alertController addAction:okAction];alertController.popoverPresentationController.sourceView = self.view;alertController.popoverPresentationController.sourceRect = CGRectMake(CGRectGetMidX(self.view.bounds), CGRectGetMidY(self.view.bounds), 1.0, 1.0);// 在视图控制器中显示 UIAlertController[self presentViewController:alertController animated:YES completion:nil];}}

后面的界面会置灰

position

[UIAlertController alertControllerWithTitle:@“标题” message:@“这是消息” preferredStyle:UIAlertControllerStyleAlert];

UIAlertControllerStyleAlert
alert样式在屏幕中间

actionsheet的样式

actionsheet不能添加文本框

添加文本框

addTextFieldWithConfigurationHandler

上面代码有事例

其他控件

UIStepper

- (void)showStepView
{// 创建一个标签用于显示数值self.label = [[UILabel alloc] initWithFrame:CGRectMake(50, 300, 200, 30)];self.label.textColor = [UIColor blackColor];self.label.text = @"0.0";[self.view addSubview:self.label];// 创建一个 UIStepperself.stepper = [[UIStepper alloc] initWithFrame:CGRectMake(50, 350, 0, 0)];[self.stepper addTarget:self action:@selector(stepperValueChanged) forControlEvents:UIControlEventValueChanged];[self.view addSubview:self.stepper];
}- (void)stepperValueChanged
{self.label.text = [NSString stringWithFormat:@"stepValue:%f",self.stepper.value];
}