//声明对象
@property (nonatomic,strong) UIAlertController *alertcontroller;
//创建提示窗口 Title:标题 message:提示内容 Style:风格
self.alertcontroller = [UIAlertController alertControllerWithTitle:@"提示" message:@"请按提示操作!" preferredStyle:UIAlertControllerStyleActionSheet];
//实例化取消按钮
UIAlertAction *cancelAction = [UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
NSLog(@"点击了取消...");
}];
//实例化确定按钮
UIAlertAction *sureAction = [UIAlertAction actionWithTitle:@"确定" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
UIAlertAction *cancelAction = [UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
NSLog(@"点击了取消...");
}];
//实例化确定按钮
UIAlertAction *sureAction = [UIAlertAction actionWithTitle:@"确定" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
//对按钮应用标准样式: UIAlertActionStyleDefault
//对按钮应用取消样式: UIAlertActionStyleCancel
//对按钮应用警示性的样式:UIAlertActionStyleDestructive
//对按钮应用取消样式: UIAlertActionStyleCancel
//对按钮应用警示性的样式:UIAlertActionStyleDestructive
NSLog(@"点击了确定...");
}];
//实例化其他按钮
UIAlertAction *otherAction = [UIAlertAction actionWithTitle:@"其他" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
NSLog(@"点击了其他...");
}];
[_alertcontroller addAction:cancelAction];
[_alertcontroller addAction:sureAction];
[_alertcontroller addAction:otherAction];
//弹出提示框
[self presentViewController:self.alertcontroller animated:YES completion:nil];
包含输入框的模式:
//创建提示窗口 Title:标题 message:提示内容 Style:风格
self.alertcontroller = [UIAlertController alertControllerWithTitle:@"提示" message:@"请按提示操作!" preferredStyle:UIAlertControllerStyleAlert];
__weak __typeof(&*self)weakSelf = self;//block 中防止循环引用
[self.alertcontroller addTextFieldWithConfigurationHandler:^(UITextField * _Nonnull textField) {
//通过通知监听textField的改变
[[NSNotificationCenter defaultCenter] addObserver:weakSelf selector:@selector(alertTextFieldDidChange:) name:UITextFieldTextDidChangeNotification object:textField];
textField.placeholder = @"请输入六位用户名";
}];
//实例化取消按钮
UIAlertAction *cancelAction = [UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
NSLog(@"点击了取消...");
}];
//实例化确定按钮
UIAlertAction *sureAction = [UIAlertAction actionWithTitle:@"确定" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
[[NSNotificationCenter defaultCenter] removeObserver:self name:UITextFieldTextDidChangeNotification object:nil];
//可以在这里获取textFields的信息
NSString *userName = self.alertcontroller.textFields.lastObject.text;
NSLog(@"该用户名:%@",userName);
}];
[_alertcontroller addAction:cancelAction];
[_alertcontroller addAction:sureAction];
//弹出提示框
[self presentViewController:self.alertcontroller animated:YES completion:nil];
self.alertcontroller = [UIAlertController alertControllerWithTitle:@"提示" message:@"请按提示操作!" preferredStyle:UIAlertControllerStyleAlert];
__weak __typeof(&*self)weakSelf = self;//block 中防止循环引用
[self.alertcontroller addTextFieldWithConfigurationHandler:^(UITextField * _Nonnull textField) {
//通过通知监听textField的改变
[[NSNotificationCenter defaultCenter] addObserver:weakSelf selector:@selector(alertTextFieldDidChange:) name:UITextFieldTextDidChangeNotification object:textField];
textField.placeholder = @"请输入六位用户名";
}];
//实例化取消按钮
UIAlertAction *cancelAction = [UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
NSLog(@"点击了取消...");
}];
//实例化确定按钮
UIAlertAction *sureAction = [UIAlertAction actionWithTitle:@"确定" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
[[NSNotificationCenter defaultCenter] removeObserver:self name:UITextFieldTextDidChangeNotification object:nil];
//可以在这里获取textFields的信息
NSString *userName = self.alertcontroller.textFields.lastObject.text;
NSLog(@"该用户名:%@",userName);
}];
[_alertcontroller addAction:cancelAction];
[_alertcontroller addAction:sureAction];
//弹出提示框
[self presentViewController:self.alertcontroller animated:YES completion:nil];
- (void)alertTextFieldDidChange:(NSNotification *)notification{
NSString *userName = self.alertcontroller.textFields.lastObject.text;
NSLog(@"该用户名:%@",userName);
NSString *userName = self.alertcontroller.textFields.lastObject.text;
NSLog(@"该用户名:%@",userName);
}