# UIPopverPresentationControllerDemo

**Repository Path**: SoulmateL/UIPopverPresentationControllerDemo

## Basic Information

- **Project Name**: UIPopverPresentationControllerDemo
- **Description**: UIPopverPresentationController
- **Primary Language**: Objective-C
- **License**: Not specified
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2018-04-09
- **Last Updated**: 2020-12-19

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# UIPopverPresentationController的基本使用

    - (void)viewDidLoad {
        [super viewDidLoad];
        self.button = [UIButton buttonWithType:UIButtonTypeSystem];
        self.button.frame = CGRectMake(100, 100, 100, 40);
        [self.button addTarget:self action:@selector(testAction:) forControlEvents:UIControlEventTouchUpInside];
        [self.view addSubview:self.button];
        self.button.backgroundColor = [UIColor redColor];
    }
    - (IBAction)testAction2:(id)sender {
        UIViewController * testVC = [[UIViewController alloc] init];
        // 设置大小sdsd
        testVC.preferredContentSize = CGSizeMake(100, 200);
        // 设置 Sytle
        testVC.modalPresentationStyle = UIModalPresentationPopover;

        self.popover = testVC.popoverPresentationController;
        self.popover.delegate = self;

        self.popover.backgroundColor = [UIColor blueColor];
        self.rightBtn =
        // 需要通过 sourceView 来判断位置的
        self.popover.barButtonItem = self.rightBtn;
        // 箭头方向
        self.popover.permittedArrowDirections = UIPopoverArrowDirectionUp;
        // 设置代理
        [self presentViewController:testVC animated:YES completion:nil];
    }

    - (void)testAction:(UIButton *)sender{

        /*
        //初始化内容视图控制器
        UIViewController *contentVC = [[UIViewController alloc]init];
        //设置大小
        contentVC.preferredContentSize = CGSizeMake(110, 160);

        // 设置弹出效果
        contentVC.modalPresentationStyle = UIModalPresentationPopover;
        //初始化一个popover
        self.popover = contentVC.popoverPresentationController;
        self.popover.delegate = self;
        //设置弹出视图的颜色
        self.popover.backgroundColor = [UIColor greenColor];
        //设置popover的来源按钮（以button谁为参照）
        self.popover.sourceView = self.button;
        //设置弹出视图的位置（以button谁为参照）
        self.popover.sourceRect = self.button.bounds;
        //箭头的方向 设置成UIPopoverArrowDirectionAny 会自动转换方向
        self.popover.permittedArrowDirections = UIPopoverArrowDirectionUp;
        //模态出弹框
        [self presentViewController:contentVC animated:YES completion:nil];//推出popover
        */


        UIViewController * testVC = [[UIViewController alloc] init];
        // 设置大小
        testVC.preferredContentSize = CGSizeMake(200, 200);
        // 设置 Sytle
        testVC.modalPresentationStyle = UIModalPresentationPopover;

        self.popover = testVC.popoverPresentationController;
        self.popover.delegate = self;

        self.popover.backgroundColor = [UIColor blueColor];

        // 需要通过 sourceView 来判断位置的
        self.popover.sourceView = self.button;
        // 指定箭头所指区域的矩形框范围（位置和尺寸）,以sourceView的左上角为坐标原点
        // 这个可以 通过 Point 或  Size 调试位置
        self.popover.sourceRect = self.button.bounds;
        // 箭头方向
        self.popover.permittedArrowDirections = UIPopoverArrowDirectionUp;
        // 设置代理
        [self presentViewController:testVC animated:YES completion:nil];
    }


        -(UIModalPresentationStyle)adaptivePresentationStyleForPresentationController:(UIPresentationController *)controller{
            return UIModalPresentationNone; //不适配
        }

        - (BOOL)popoverPresentationControllerShouldDismissPopover:(UIPopoverPresentationController *)popoverPresentationController{
            return YES;   //点击蒙版popover消失， 默认YES
        }