【UIAlertView警报和UIActionSheet操作表】

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/*@interface AppDelegate : UIResponder <UIApplicationDelegate,UIAlertViewDelegate,UIActionSheetDelegate>代理*/

 //创建两按钮及其目标

    UIButton *b1=[[UIButton alloc]initWithFrame:CGRectMake(30, 60, 120, 60)];

    b1.backgroundColor=[UIColor greenColor];

    [b1 setTitle:@"警报" forState:UIControlStateNormal];

    [b1 addTarget:self action:@selector(alertTap:) forControlEvents:UIControlEventTouchUpInside];

    

    UIButton *b2=[[UIButton alloc]initWithFrame:CGRectMake(180, 60, 120, 60)];

    b2.backgroundColor=[UIColor greenColor];

    [b2 setTitle:@"操作表" forState:UIControlStateNormal];

    [b2 addTarget:self action:@selector(actionTap:) forControlEvents:UIControlEventTouchUpInside];

    

    [self.window addSubview:b1];

    [self.window addSubview:b2];

    

       return YES;

}

//实现目标 创建警报视图

-(void)alertTap:(id)sender

{

    UIAlertView *alert=[[UIAlertView alloc]initWithTitle:@"警告" message:@"你当前在浏览非法网站，请立即退出" delegate:self cancelButtonTitle:@"好" otherButtonTitles:@"否", nil];

    [alert show];

}

//警报按键所对应的位置

-(void)alertView:(nonnull UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex

{

    if(buttonIndex==0)

        NSLog(@"你点击了好");

              else if(buttonIndex==1)

              NSLog(@"你点击了否");

}

//创建操作表视图

-(void)actionTap:(id)sender

{

    UIActionSheet *action=[[UIActionSheet alloc]initWithTitle:@"删除？" delegate:self cancelButtonTitle:@"取消" destructiveButtonTitle:@"销毁" otherButtonTitles:@"其他", nil];

    //操作表视图显示的方法略有不同

    [action showInView:self.window];

}

//操作表视图按键所对应的位置

-(void)actionSheet:(nonnull UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex

{

    if(buttonIndex==0)

        NSLog(@"你选择了销毁");

    else if(buttonIndex==1)

        NSLog(@"你选择了其他");

    else if (buttonIndex==2)

        NSLog(@"你选择了取消");

}