PreviewChannel

Artifact: androidx.tvprovider:tvprovider

Added in 1.1.0-alpha02

Kotlin |Java

class PreviewChannel

Since API 26, all TV apps may create preview channels and publish them to the home screen. We call these App Channels (as distinct from the Live Channels row on the home screen). To help you create App Channels, the support library provides a number of classes prefixed by the word Preview-. This is a convenience class for mapping your app's content into a TvProvider Channel for publication. Use the provided Builder for creating your preview channel object. Once you create a preview channel, you can use PreviewChannelHelper to publish it and add programs to it.

Summary

Nested types
`class PreviewChannel.Builder` This builder makes it easy to create a PreviewChannel object by allowing you to chain setters.

Public functions
`Boolean`	`equals(other: Any!)`
`java-static PreviewChannel!`	`fromCursor(cursor: Cursor!)` Used by `PreviewChannelHelper` to transduce a TvProvider channel row into a PreviewChannel Java object.
`Intent!`	`getAppLinkIntent()`
`Uri!`	`getAppLinkIntentUri()`
`CharSequence!`	`getDescription()`
`CharSequence!`	`getDisplayName()`
`Long`	`getId()`
`ByteArray<Byte>!`	`getInternalProviderDataByteArray()`
`Long!`	`getInternalProviderFlag1()`
`Long!`	`getInternalProviderFlag2()`
`Long!`	`getInternalProviderFlag3()`
`Long!`	`getInternalProviderFlag4()`
`String!`	`getInternalProviderId()`
`Bitmap!`	`@WorkerThread getLogo(context: Context!)` This method should be called on a worker thread since decoding Bitmap is an expensive operation and therefore should not be performed on the main thread.
`String!`	`getPackageName()`
`String!`	`getType()`
`Boolean`	`hasAnyUpdatedValues(update: PreviewChannel!)` Indicates whether some other PreviewChannel has any set attribute that is different from this PreviewChannel's respective attributes.
`Int`	`hashCode()`
`Boolean`	`isBrowsable()`
`String!`	`toString()`

Public functions

equals

fun equals(other: Any!): Boolean

fromCursor

Added in 1.1.0-alpha02

java-static fun fromCursor(cursor: Cursor!): PreviewChannel!

Used by PreviewChannelHelper to transduce a TvProvider channel row into a PreviewChannel Java object. You never need to use this method unless you want to convert database rows to PreviewChannel objects yourself.

This method assumes the cursor was obtained using .PreviewChannel.Columns#PROJECTION. This way, all indices are known beforehand.

Parameters
`cursor: Cursor!`	a cursor row from the TvProvider

Returns
`PreviewChannel!`	a PreviewChannel whose values come from the cursor row

getAppLinkIntent

Added in 1.1.0-alpha02

fun getAppLinkIntent(): Intent!

Returns
`Intent!`	The value of `COLUMN_APP_LINK_INTENT_URI` for the program.

Throws
`java.net.URISyntaxException`

getAppLinkIntentUri

Added in 1.1.0-alpha02

fun getAppLinkIntentUri(): Uri!

Returns
`Uri!`	The value of `COLUMN_APP_LINK_INTENT_URI` for the channel.

getDescription

Added in 1.1.0-alpha02

fun getDescription(): CharSequence!

Returns
`CharSequence!`	The value of `COLUMN_DESCRIPTION` for the channel. A short text explaining what this channel contains.

getDisplayName

Added in 1.1.0-alpha02

fun getDisplayName(): CharSequence!

Returns
`CharSequence!`	The name users see when this channel appears on the home screen

getId

Added in 1.1.0-alpha02

fun getId(): Long

Returns
`Long`	the ID the system assigns to this preview channel upon publication.

getInternalProviderDataByteArray

Added in 1.1.0-alpha02

fun getInternalProviderDataByteArray(): ByteArray<Byte>!

Returns
`ByteArray<Byte>!`	The value of `COLUMN_INTERNAL_PROVIDER_DATA` for the channel.

getInternalProviderFlag1

Added in 1.1.0-alpha02

fun getInternalProviderFlag1(): Long!

Returns
`Long!`	The value of `COLUMN_INTERNAL_PROVIDER_FLAG1` for the channel.

getInternalProviderFlag2

Added in 1.1.0-alpha02

fun getInternalProviderFlag2(): Long!

Returns
`Long!`	The value of `COLUMN_INTERNAL_PROVIDER_FLAG2` for the channel.

getInternalProviderFlag3

Added in 1.1.0-alpha02

fun getInternalProviderFlag3(): Long!

Returns
`Long!`	The value of `COLUMN_INTERNAL_PROVIDER_FLAG3` for the channel.

getInternalProviderFlag4

Added in 1.1.0-alpha02

fun getInternalProviderFlag4(): Long!

Returns
`Long!`	The value of `COLUMN_INTERNAL_PROVIDER_FLAG4` for the channel.

getInternalProviderId

Added in 1.1.0-alpha02

fun getInternalProviderId(): String!

Returns
`String!`	The value of `COLUMN_INTERNAL_PROVIDER_ID` for the channel.

getLogo

Added in 1.1.0-alpha02

@WorkerThread
fun getLogo(context: Context!): Bitmap!

This method should be called on a worker thread since decoding Bitmap is an expensive operation and therefore should not be performed on the main thread.

Returns
`Bitmap!`	The logo associated with this preview channel

getPackageName

Added in 1.1.0-alpha02

fun getPackageName(): String!

Returns
`String!`	package name of the app that created this channel

getType

Added in 1.1.0-alpha02

fun getType(): String!

Returns
`String!`	what type of channel this is. For preview channels, the type is always TvContractCompat.Channels.TYPE_PREVIEW

hasAnyUpdatedValues

Added in 1.1.0-alpha02

fun hasAnyUpdatedValues(update: PreviewChannel!): Boolean

Indicates whether some other PreviewChannel has any set attribute that is different from this PreviewChannel's respective attributes. An attribute is considered "set" if its key is present in the ContentValues vector.

hashCode

fun hashCode(): Int

isBrowsable

Added in 1.1.0-alpha02

fun isBrowsable(): Boolean

Returns
`Boolean`	The value of `COLUMN_BROWSABLE` for the channel. A preview channel is BROWABLE when it is visible on the TV home screen.

toString

fun toString(): String!

Content and code samples on this page are subject to the licenses described in the Content License. Java and OpenJDK are trademarks or registered trademarks of Oracle and/or its affiliates.

Last updated 2024-12-18 UTC.

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