ESPopoverWithChoices

一个依赖于 WEPopover 的相对简单的辅助类，用于显示具有选择项的弹出窗口。只需将此存储库和 WEPopover 子模块（以及相关资源）中的类包含到您自己的项目中即可。

- (void)displayChoices:(UIBarButtonItem *)sender
{
	ESPopoverChoicesSelectionController *contentViewController = [[ESPopoverChoicesSelectionController alloc] initWithStyle:UITableViewStylePlain];
	contentViewController.delegate = self;
	contentViewController.choices = [NSArray arrayWithObjects:
					[ESPopoverChoice popoverChoiceWithName:@"Choice One" value:[NSNumber numberWithInteger:EnumValueForChoiceOne]],
					[ESPopoverChoice popoverChoiceWithName:@""Choice Two" value:[NSNumber numberWithInteger:EnumValueForChoiceTwo]],
					[ESPopoverChoice popoverChoiceWithName:@""Choice Three" "value:[NSNumber numberWithInteger:EnumValueForChoiceThree]],
									 nil];

	self.popoverController = [[[WEPopoverController alloc] initWithContentViewController:contentViewController] autorelease];
	[self.popoverController presentPopoverFromBarButtonItem:sender 
								   permittedArrowDirections:UIPopoverArrowDirectionUp
												   animated:YES];
	[contentViewController release];
}

具有简单的代理处理方法

- (void)popoverChoicesSelectionController:(ESPopoverChoicesSelectionController *)controller didSelectChoice:(ESPopoverChoice *)choice
{
	if (choice) {
		NSInteger theChoiceEnumValue = [choice.value intValue];
	
		. . .
	}
				
	[self.popoverController dismissPopoverAnimated:YES];
	self.popoverController = nil;
}