1.UIAlertVIew以-(void)show的方法显示：
- (void)viewDidLoad {
[super viewDidLoad];
//UIAlertView的使用
[self showAlert];
//UIAcyionSheet使用
// [self showAction];
#pragma mark [self showAlertController];方法不可以放在此处因为UIAlertControl继承与UIViewController
//UIAlertControl的使用
// [self showAlertController];
}
UIAlertView 的实现：
-(void)showAlert{
UIAlertView *alertView = [[UIAlertView alloc]initWithTitle:@"紧急通知" message:@"由于幸福指数哦不断下降，经调查和假期成线性关系，特批以后工作一天休息一天" delegate:self cancelButtonTitle:@"取消" otherButtonTitles:@"确定", nil];
alertView.alertViewStyle = UIAlertViewStyleDefault;
/*
UIAlertViewStyleDefault ，默认
UIAlertViewStyleSecureTextInput, 密码输入框
UIAlertViewStylePlainTextInput, 文本输入框
UIAlertViewStyleLoginAndPasswordInput 用户及密码
*/
[alertView show];
}
#pragma mark - UIALertDelegate
-(void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex{
switch (buttonIndex) {
case 0:
NSLog(@"点击%ld",buttonIndex);
break;
case 1:
NSLog(@"点击%ld",buttonIndex);
break;
default:
break;
}
}
2.UIActionSheet的使用
-(void)showAction{
UIActionSheet *actionSheet = [[UIActionSheet alloc]initWithTitle:@"请假\n选择请假类型" delegate:self cancelButtonTitle:@"取消" destructiveButtonTitle:@"事假" otherButtonTitles:@"病假",@"产假", nil];
[actionSheet showInView:self.view];
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
#pragma mark UIActionSheetDelegate
-(void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex{
switch (buttonIndex) {
case 0:
NSLog(@"点击%ld",buttonIndex);
break;
case 1:
NSLog(@"点击%ld",buttonIndex);
break;
case 2:
NSLog(@"点击%ld",buttonIndex);
break;
default:
break;
}
}
3.UIAlertControl的简单使用
-(void)showAlertController{
//UIAlertControllerStyle两种类型UIAlertControllerStyleAlert类似UIAlertView
//UIAlertControllerStyleActionSheet类似UIActionSheet
UIAlertController *alertControl = [UIAlertController alertControllerWithTitle:@"you and me" message:@"together forever" preferredStyle:UIAlertControllerStyleAlert];
//block代码块取代了delegate
UIAlertAction *actionOne = [UIAlertAction actionWithTitle:@"No matter of life and death" style:UIAlertActionStyleDestructive handler:^(UIAlertAction *action) {
NSLog(@"生死相依");
}];
UIAlertAction *alertTwo = [UIAlertAction actionWithTitle:@"Share weal and woe" style:UIAlertActionStyleDefault handler:^(UIAlertAction *action) {
NSLog(@"同甘共苦");
}];
UIAlertAction *alertthree = [UIAlertAction actionWithTitle:@"Sure" style:UIAlertActionStyleCancel handler:^(UIAlertAction *action) {
NSLog(@"确定");
}];
[alertControl addAction:actionOne];
[alertControl addAction:alertTwo];
[alertControl addAction:alertthree];
//UIAlertControllerStyle类型为UIAlertControllerStyleAlert可以添加addTextFieldWithConfigurationHandler:^(UITextField *textField)
[alertControl addTextFieldWithConfigurationHandler:^(UITextField *textField) {
textField.text = @"for love ";
}];
[self presentViewController:alertControl animated:YES completion:nil];
}