UIPopoverController

UIPopoverController只能跑在iPad上

• (IBAction)click:(id)sender;
  @property (nonatomic,strong) UIPopoverController *popOver;

@end

@implementation ViewController

• (void)viewDidLoad {
  [super viewDidLoad];
  // Do any additional setup after loading the view, typically from a nib.

  self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemDone target:self action:@selector(barClick)];

  TQTableViewController *tableViewVC = [[TQTableViewController alloc] initWithStyle:UITableViewStylePlain];
  self.popOver = [[UIPopoverController alloc] initWithContentViewController:tableViewVC];

  //改變彈出框的大小
  self.popOver.popoverContentSize = CGSizeMake(200, 200);
  }

• (void)didReceiveMemoryWarning {
  [super didReceiveMemoryWarning];
  // Dispose of any resources that can be recreated.
  }

//vc變成彈出框
-(void)barClick
{
warning 8.0之前

//在導航條按鈕附近彈出
//[self.popOver presentPopoverFromBarButtonItem:self.navigationItem.rightBarButtonItem permittedArrowDirections:UIPopoverArrowDirectionAny animated:YES];

warning 8.0之後

tableViewVC = [[TQTableViewController alloc] init];

tableViewVC.block = ^(UIColor *color)
{
    self.view.backgroundColor = color;

    [tableViewVC dismissViewControllerAnimated:YES completion:nil];
};

//改變彈出視圖的樣式爲Popover
tableViewVC.modalPresentationStyle = UIModalPresentationPopover;
//彈出框的大小
tableViewVC.preferredContentSize = CGSizeMake(200, 200);
//設置顯示的按鈕
tableViewVC.popoverPresentationController.barButtonItem = self.navigationItem.rightBarButtonItem;
//設置彈出框在哪個view中顯示
tableViewVC.popoverPresentationController.sourceView = self.view;
//設置箭頭的方向
tableViewVC.popoverPresentationController.permittedArrowDirections = UIPopoverArrowDirectionAny;
//彈出當前VC
[self presentViewController:tableViewVC animated:YES completion:nil];

}

• (IBAction)click:(UIButton *)sender {
  warning 8.0之前

  //在指定的frame附近彈出
  // [self.popOver presentPopoverFromRect:sender.frame inView:self.view permittedArrowDirections:UIPopoverArrowDirectionAny animated:YES];

warning 8.0之後

TQTableViewController *tableViewVC = [[TQTableViewController alloc] init];
tableViewVC.modalPresentationStyle = UIModalPresentationPopover;

tableViewVC.preferredContentSize = CGSizeMake(200, 200);

tableViewVC.popoverPresentationController.sourceRect = sender.frame;

tableViewVC.popoverPresentationController.sourceView = self.view;

tableViewVC.popoverPresentationController.permittedArrowDirections = UIPopoverArrowDirectionAny;

[self presentViewController:tableViewVC animated:YES completion:nil];

}