3

私はAVPlayerViewControllerこのように設定しようとしています：

私はこの- (void) willMoveToSuperview:(UIView *)newSuperviewコードを呼び出します：

if(self.moviePlayerController == nil) {

                self.moviePlayerController = [[AVPlayerViewController alloc] init];

                [self.view addSubview: [self.moviePlayerController view]];

                [self.view setTranslatesAutoresizingMaskIntoConstraints:NO];
                [self.moviePlayerController.view setTranslatesAutoresizingMaskIntoConstraints:NO];

                NSDictionary *views = @{ @"selfview" : self.view, @"movieControllerView" : [self moviePlayerController].view};

                [self.view addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"V:|[movieControllerView]|"
                                                                                  options:0
                                                                                  metrics:nil
                                                                                    views:views]];
                [self.view addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"H:|[movieControllerView]|"
                                                                                  options:0
                                                                                  metrics:nil
                                                                                    views:views]];
            }

しかし、プレーヤーが作成されると、次の例外が発生します。

Unable to simultaneously satisfy constraints.
                Probably at least one of the constraints in the following list is one you don't want.
                Try this:
                (1) look at each constraint and try to figure out which you don't expect;
                (2) find the code that added the unwanted constraint or constraints and fix it.
                (Note: If you're seeing NSAutoresizingMaskLayoutConstraints that you don't understand, refer to the documentation for the UIView property translatesAutoresizingMaskIntoConstraints)
                (
                 "<NSAutoresizingMaskLayoutConstraint:0x1499d1730 AVPlayerView:0x149885150.(null) == TSNView:0x14996bca0.(null) - 110>",
                 "<NSLayoutConstraint:0x1498bf480 AVPlayerView:0x149885150.leading == TSNView:0x14996bca0.leading>",
                 "<NSLayoutConstraint:0x1498bc800 UIView:0x14996bca0.trailing == AVPlayerView:0x149885150.trailing>"
                 )

                Will attempt to recover by breaking constraint
                <NSLayoutConstraint:0x1498bc800 UIView:0x14996bca0.trailing == AVPlayerView:0x149885150.trailing>

コードはMPMoviePlayerController問題なく動作していました。AVPlayerViewController's自動レイアウトを使用して別のビュー内にビューをネストする方法は適切ですか?

4

2 に答える 2

4

ビューを階層に追加すると、自動サイズ変更マスクが制約に変換されます。したがって、この順序を変更する必要があります。

[self.view addSubview: [self.moviePlayerController view]];
[self.view setTranslatesAutoresizingMaskIntoConstraints:NO];
[self.moviePlayerController.view setTranslatesAutoresizingMaskIntoConstraints:NO];

これに：

[self.view setTranslatesAutoresizingMaskIntoConstraints:NO];
[self.moviePlayerController.view setTranslatesAutoresizingMaskIntoConstraints:NO];
[self.view addSubview: [self.moviePlayerController view]];

また、View Controller のコンテインメントは、View Controllerを階層に追加するだけでviewはないことを理解していただければ幸いです。

于 2015-11-30T13:12:01.947 に答える