UIAlertView * alertView = [[UIAlertView alloc] initWithTitle:@"title" message:@"message" delegate:self cancelButtonTitle:@"cancel" otherButtonTitles:@"done", nil];
//设置alertView的样式
alertView.alertViewStyle = UIAlertViewStyleLoginAndPasswordInput;
//使alertView展示出来
[alertView show];
//延迟5秒执行dismissAlertView
[self performSelector:@selector(dismissAlertView:) withObject:alertView afterDelay:5];
// alertview消失的方法
-（void）dismissAlertView:(UIAlertView*)alert{
[alert dismissWithClickedButtonIndex:0 animated:YES];
}
//点击alertView button 触发的方法。
//buttonIndex按钮的索引值 cancel的index为0
//（代理方法）
- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
//获取alertview上的输入文本
UITextField * textField1 = [alertView textFieldAtIndex:0];
NSLog(@"%@",textField1.text);
2、UIActionSheet(屏幕底端出现)
UIActionSheet * sheet = [[UIActionSheet alloc] initWithTitle:@"题目" delegate:self cancelButtonTitle:@"取消" destructiveButtonTitle:@"确定" otherButtonTitles:@"可以", nil];
//destructiveButtonTitle 红色字体
//使sheet显示出来
[sheet showInView:self.view];
//延迟5秒执行dismissAlertView
[self performSelector:@selector(dismissActionSheet:) withObject:sheet afterDelay:5];
// sheet 消失的方法
[sheet dismissWithClickedButtonIndex:0 animated:YES];
//代理方法（index顺序从上到下）
- (void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex {
switch (buttonIndex) {
case 0:
NSLog(@"确定");
break;
case 1:
NSLog(@"可以");
break;
case 2:
NSLog(@"取消");
break;
default:
break;
}
}
3、UIAlertController
//创建UIAlertController
UIAlertController * alertController = [UIAlertController alertControllerWithTitle:@"题目" message:@"消息" preferredStyle:UIAlertControllerStyleAlert];
//创建按钮
UIAlertAction * action1 = [UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleCancel handler:^(UIAlertAction * action) {
NSLog(@"no");
}];
UIAlertAction * action2 = [UIAlertAction actionWithTitle:@"确定" style:UIAlertActionStyleDestructive handler:^(UIAlertAction * action) {
NSLog(@"ok");
UITextField * field = alertController.textFields[0];
NSLog(@"%@",field.text);
}];
//添加文本
[alertController addTextFieldWithConfigurationHandler:^(UITextField * textField) {
textField.secureTextEntry = YES;
}];
[alertController addAction:action1];
[alertController addAction:action2];
//展示alertController
[self presentViewController:alertController animated:YES completion:nil];