开源软件名称：

DXPopver

开源软件地址：

https://gitee.com/JokerV/DXPopver

开源软件介绍：

#DXPopver

DXPopover

A Popover mimic Facebook app popover using UIKit.

The concept of this popover is very simple: add your contentView in a popover, then show the popover in the container view.

##Screenshot DXPopover

##Usage

The API and demo is fairly straight forward. You can read details in the demo.

##Showing the popover

make a your contentView, set its frame or bounds.
new a DXPopover.
show it.

Simple

eg:

UIImageView *imageV= [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, 200, 200)];imageV.image = [UIImage imageNamed:@"ig20.jpg"];DXPopover *popover = [DXPopover popover];[popover showAtView:self.btn1 withContentView:imageV];

More conceret

eg:

[self.popover showAtPoint:yourPoint popoverPostion:DXPopoverPositionDown withContentView:self.tableView inView:self.tabBarController.view]; // 1.Set the show point 2.set The position if up or down staying the showPoint, 3.Your contentView 4.The containerView__weak typeof(self)weakSelf = self;self.popover.didDismissHandler = ^{ //The callback of popover dimissal.    [weakSelf bounceTargetView:titleView];};