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Atrybuty programów audio zależą od typu treści. Program
type informuje system, jakich metadanych oczekuje, aby umożliwić wypełnienie interfejsu użytkownika.
w odpowiedni sposób. Dostępne są następujące typy programów audio:
Użyj formatu PreviewProgram.Builder
aby stworzyć program. Więcej informacji o możliwych wartościach poszczególnych pól znajdziesz w artykule
dokumentacji Javy dla każdej metody ustawiającej w konstruktorze.
Poniższy przykład pokazuje, jak używać atrybutu PreviewProgram.Builder:
PreviewProgram program = new PreviewProgram.Builder()
.setChannelId(channelId)
.setTitle(clip.getTitle())
.setDescription(clip.getDescription())
.setType(TvContractCompat.PreviewPrograms.TYPE_ALBUM)
// Set required attributes
.build();
W tabeli poniżej znajdziesz atrybuty, które można przypisać do każdego typu
programu audio i linki do odpowiedniej metody ustawiającej w
PreviewProgram.Builder Atrybuty oznaczone ✔ są wymagane. te oznaczone jako (✔) są opcjonalne.
Treść strony i umieszczone na niej fragmenty kodu podlegają licencjom opisanym w Licencji na treści. Java i OpenJDK są znakami towarowymi lub zastrzeżonymi znakami towarowymi należącymi do firmy Oracle lub jej podmiotów stowarzyszonych.
Ostatnia aktualizacja: 2025-07-27 UTC.
[null,null,["Ostatnia aktualizacja: 2025-07-27 UTC."],[],[],null,["# Audio program attributes\n\nAttributes for audio programs depend on the type of the content. The program\ntype tells the system what metadata to expect so that the UI can be filled in\nappropriately. Audio programs can be one of these types:\n\n- [`TYPE_TRACK`](/reference/androidx/tvprovider/media/tv/TvContractCompat.PreviewPrograms#TYPE_TRACK())\n- [`TYPE_ALBUM`](/reference/androidx/tvprovider/media/tv/TvContractCompat.PreviewPrograms#TYPE_ALBUM())\n- [`TYPE_ARTIST`](/reference/androidx/tvprovider/media/tv/TvContractCompat.PreviewPrograms#TYPE_ARTIST())\n- [`TYPE_PLAYLIST`](/reference/androidx/tvprovider/media/tv/TvContractCompat.PreviewPrograms#TYPE_PLAYLIST())\n- [`TYPE_STATION`](/reference/androidx/tvprovider/media/tv/TvContractCompat.PreviewPrograms#TYPE_STATION())\n\nUse [`PreviewProgram.Builder`](/reference/androidx/tvprovider/media/tv/PreviewProgram.Builder)\nto build a program. You can read more about possible values for each field in\nthe Java documentation for each setter on the builder.\n\nThe following example shows how to use `PreviewProgram.Builder`: \n\n PreviewProgram program = new PreviewProgram.Builder()\n .setChannelId(channelId)\n .setTitle(clip.getTitle())\n .setDescription(clip.getDescription())\n .setType(TvContractCompat.PreviewPrograms.TYPE_ALBUM)\n // Set required attributes\n .build();\n\nThe following table shows the attributes that can be assigned to each type of\naudio program, and links to the corresponding setter in\n`PreviewProgram.Builder`. Attributes marked ✔ are required; those marked (✔) are optional.\n\n| Attribute | Track | Album | Artist | Playlist | Station |\n|---------------------------------------------------------------------------------------------------------------------------------------------|-------|-------|--------|----------|---------|\n| [Author](/reference/androidx/tvprovider/media/tv/PreviewProgram.Builder#setAuthor(java.lang.String)) | (✔) | (✔) | | (✔) | |\n| [Availability](/reference/androidx/tvprovider/media/tv/PreviewProgram.Builder#setAvailability(int)) | (✔) | (✔) | (✔) | (✔) | (✔) |\n| [Channel ID](/reference/androidx/tvprovider/media/tv/PreviewProgram.Builder#setChannelId(long)) | ✔ | ✔ | ✔ | ✔ | ✔ |\n| [Content ID](/reference/androidx/tvprovider/media/tv/PreviewProgram.Builder#setContentId(java.lang.String)) | (✔) | (✔) | (✔) | (✔) | (✔) |\n| [Duration](/reference/androidx/tvprovider/media/tv/PreviewProgram.Builder#setDurationMillis(int)) | ✔ | | | | |\n| [Genre](/reference/androidx/tvprovider/media/tv/PreviewProgram.Builder#setGenre(java.lang.String)) | (✔) | (✔) | (✔) | (✔) | (✔) |\n| [Intent URI](/reference/androidx/tvprovider/media/tv/PreviewProgram.Builder#setIntentUri(android.net.Uri)) | ✔ | ✔ | ✔ | ✔ | ✔ |\n| [Interaction Count](/reference/androidx/tvprovider/media/tv/PreviewProgram.Builder#setInteractionCount(long)) | | | (✔) | (✔) | (✔) |\n| [Interaction Type](/reference/androidx/tvprovider/media/tv/PreviewProgram.Builder#setInteractionType(int)) | | | (✔) | (✔) | (✔) |\n| [Internal Provider ID](/reference/androidx/tvprovider/media/tv/PreviewProgram.Builder#setInternalProviderId(java.lang.String)) | (✔) | (✔) | (✔) | (✔) | (✔) |\n| [Live](/reference/androidx/tvprovider/media/tv/PreviewProgram.Builder#setLive(boolean)) | | | | | (✔) |\n| [Logo URI (\\*)](/reference/androidx/tvprovider/media/tv/PreviewProgram.Builder#setLogoUri(android.net.Uri)) | | | | (✔) | |\n| [Logo Content Description (\\*)](/reference/androidx/tvprovider/media/tv/PreviewProgram.Builder#setLogoContentDescription(java.lang.String)) | | | | (✔) | |\n| [Offer Price](/reference/androidx/tvprovider/media/tv/PreviewProgram.Builder#setOfferPrice(java.lang.String)) | (✔) | (✔) | (✔) | (✔) | (✔) |\n| [Poster Art Aspect Ratio](/reference/androidx/tvprovider/media/tv/PreviewProgram.Builder#setPosterArtAspectRatio(int)) | ✔ | ✔ | ✔ | ✔ | ✔ |\n| [Poster Art URI](/reference/androidx/tvprovider/media/tv/PreviewProgram.Builder#setPosterArtUri(android.net.Uri)) | ✔ | ✔ | ✔ | ✔ | ✔ |\n| [Preview Audio URI](/reference/androidx/tvprovider/media/tv/PreviewProgram.Builder#setPreviewAudioUri(android.net.Uri)) | (✔) | (✔) | (✔) | (✔) | (✔) |\n| [Preview Video URI](/reference/androidx/tvprovider/media/tv/PreviewProgram.Builder#setPreviewVideoUri(android.net.Uri)) | (✔) | (✔) | (✔) | (✔) | (✔) |\n| [Release Date](/reference/androidx/tvprovider/media/tv/PreviewProgram.Builder#setReleaseDate(java.lang.String)) | (✔) | (✔) | | | |\n| [Short Description](/reference/androidx/tvprovider/media/tv/PreviewProgram.Builder#setDescription(java.lang.String)) | (✔) | (✔) | (✔) | (✔) | (✔) |\n| [Starting Price](/reference/androidx/tvprovider/media/tv/PreviewProgram.Builder#setStartingPrice(java.lang.String)) | (✔) | (✔) | (✔) | (✔) | (✔) |\n| [Thumbnail Aspect Ratio](/reference/androidx/tvprovider/media/tv/PreviewProgram.Builder#setThumbnailAspectRatio(int)) | (✔) | (✔) | (✔) | (✔) | (✔) |\n| [Thumbnail URI](/reference/androidx/tvprovider/media/tv/PreviewProgram.Builder#setThumbnailUri(android.net.Uri)) | (✔) | (✔) | (✔) | (✔) | (✔) |\n| [Title](/reference/androidx/tvprovider/media/tv/PreviewProgram.Builder#setTitle(java.lang.String)) | ✔ | ✔ | ✔ | ✔ | ✔ |\n| [Video Height](/reference/androidx/tvprovider/media/tv/PreviewProgram.Builder#setVideoHeight(int)) | (✔) | (✔) | (✔) | (✔) | (✔) |\n| [Video Width](/reference/androidx/tvprovider/media/tv/PreviewProgram.Builder#setVideoWidth(int)) | (✔) | (✔) | (✔) | (✔) | (✔) |\n| [Weight](/reference/androidx/tvprovider/media/tv/PreviewProgram.Builder#setWeight(int)) | (✔) | (✔) | (✔) | (✔) | (✔) |\n\n| **(\\*) Notes:** LOGO_CONTENT_DESCRIPTION is required when LOGO_URI is used."]]