iphone 弹出表单UIActionSheet的应用。

UIActionSheet用于让用户在多个选项之间进行选择。操作表从底部弹出。

。
继承UIActionSheetDelegate

。按下按钮弹出表单
#pragma mark -
#pragma mark Btn press

-(void)photoBtnPress{
UIActionSheet *actionSheet = [[UIActionSheet
alloc]
initWithTitle:@"表单标题"
delegate:self
cancelButtonTitle:@"取消"
destructiveButtonTitle:@"元素1"
otherButtonTitles:@"元素2",@"元素3",
nil];

[actionSheet
showInView:self.view];
[actionSheet
release];
}

。表单回调
#pragma mark -
#pragma mark UIActionSheetDelegate
- (void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex
{
NSLog(@"buttonIndex: %d",
buttonIndex);
}