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【UIKit】UIAlert，UIActionSheet

2024-07-15 19:06:13   224人阅读

【Alert】

 

1.加入协议

<UIAlertViewDelegate,UIActionSheetDelegate>

 2.

-(IBAction)btnShowAlertView:(id)sender
{    UIAlertView *alert=[[UIAlertView alloc]initWithTitle:@"标题"                                                 message:@"对话框的内容"                                                delegate:self                                       cancelButtonTitle:@"关闭"                                       otherButtonTitles:@"其他1",@"其他2",nil];    [alert show];    [alert release];}

3.如何获取到点击按钮的tag

#pragma mark - UIAlertViewDelegate可以获取到所按的按钮的index-(void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex{    NSLog(@"actionSheet buttonIndex = %i", buttonIndex);}

 

【sheet】

1.加入协议

<UIAlertViewDelegate,UIActionSheetDelegate>

2.

-(IBAction)btnShowActionSheet:(id)sender
{    UIActionSheet *actions=[[UIActionSheet alloc]initWithTitle:@"标题"                                                      delegate:self                                             cancelButtonTitle:@"关闭"                                        destructiveButtonTitle:nil                                             otherButtonTitles:@"其他1",@"其他2", nil];    [actions showInView:self.view];    [actions release];}

3.获取到sheet点击按钮的index

#pragma mark - UIActionSheetDelegate- (void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex{    NSLog(@"actionSheet buttonIndex = %i", buttonIndex);}

 

 

【SVStatusHUD】 第三方Alert

-(IBAction)btnStatusHUD:(id)sender
{    [SVStatusHUD showSuccessWithStatus:@"授权已过期!"];}

操作步骤：

1.在.m中引用

#import "SVStatusHUD.h"

2.加入代码

-(IBAction)btnStatusHUD:(id)sender{    [SVStatusHUD showSuccessWithStatus:@"授权已过期!"];}

【嵌套的Alert】

#pragma mark -循环提问-(IBAction)btnShowAlertView:(id)sender{    UIAlertView *alert=[[UIAlertView alloc]initWithTitle:@"标题"                                                 message:@"对话框的内容"                                                delegate:self                                       cancelButtonTitle:@"关闭"                                       otherButtonTitles:@"其他1",@"其他2",nil];    alert.tag=1;    // 【使用tag值进行嵌套跳出】    [alert show];    [alert release];}#pragma mark - UIAlertViewDelegate-(void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex{    if(alertView.tag==1)      // 【判断如果tag==1,那么就继续第二层，然后在本方法中设置tag为2，当再次进入此循环后，tag！=1就可以跳出循环了】    {    NSLog(@"actionSheet buttonIndex = %i", buttonIndex);    UIAlertView *alert=[[UIAlertView alloc]initWithTitle:@"标题2"                                                 message:@"对话框的内容2"                                                delegate:self                                       cancelButtonTitle:@"关闭2"                                       otherButtonTitles:@"第二层2",@"第二层1",nil];    alert.tag=2;    [alert show];    [alert release];    }else　　{   　　 NSLog(@"actionSheet buttonIndex = %i", buttonIndex);　　}}


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