HeaderBuilder
open class HeaderBuilder
| kotlin.Any | |
| ↳ | androidx.slice.builders.ListBuilder.HeaderBuilder |
Builder to construct a header row.
A header provides some additional functionality compared to a RowBuilder. Like a row, a header has a title, subtitle, and primary action.
In addition to a row's title, subtitle, and primary action, a header also supports setting a summary description of the list contents using HeaderBuilder#setSummary(CharSequence). This summary might be used when the rest of the list content is not shown (e.g. if SliceView presenting slice is configured to androidx.slice.widget.SliceView#MODE_SMALL.
The primary action specified by HeaderBuilder#setPrimaryAction(SliceAction) will be used as the PendingIntent sent when header is clicked. This action is also used when when SliceView displays in androidx.slice.widget.SliceView#MODE_SHORTCUT.
Unlike row builder, header builder does not support end items (e.g. RowBuilder#addEndItem(SliceAction)). The header may be used to display actions set on the list via addAction(SliceAction).
Summary
Public constructors |
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|---|---|
<init>()Create builder for a header. |
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Public methods |
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| open ListBuilder.HeaderBuilder |
setContentDescription(@NonNull description: CharSequence)Sets the content description for the header. |
| open ListBuilder.HeaderBuilder |
setLayoutDirection(layoutDirection: Int)Sets the desired layout direction for the content in this row. |
| open ListBuilder.HeaderBuilder |
setPrimaryAction(@NonNull action: SliceAction)Sets the action to send when the header is clicked. |
| open ListBuilder.HeaderBuilder |
setSubtitle(@NonNull subtitle: CharSequence)Sets the subtitle for the header builder. |
| open ListBuilder.HeaderBuilder |
setSubtitle(@NonNull subtitle: CharSequence, isLoading: Boolean)Sets the subtitle for the header builder. |
| open ListBuilder.HeaderBuilder |
setSummary(@NonNull summary: CharSequence)Sets the summary for the header builder. |
| open ListBuilder.HeaderBuilder |
setSummary(@NonNull summary: CharSequence, isLoading: Boolean)Sets the summary for the header builder. |
| open ListBuilder.HeaderBuilder |
setTitle(@NonNull title: CharSequence)Sets the title for the header builder. |
| open ListBuilder.HeaderBuilder |
setTitle(@NonNull title: CharSequence, isLoading: Boolean)Sets the title for the header builder. |
Public constructors
<init>
HeaderBuilder()
Create builder for a header.
Public methods
setContentDescription
@NonNull open fun setContentDescription(@NonNull description: CharSequence): ListBuilder.HeaderBuilder
Sets the content description for the header.
setLayoutDirection
@NonNull open fun setLayoutDirection(layoutDirection: Int): ListBuilder.HeaderBuilder
Sets the desired layout direction for the content in this row.
| Parameters | |
|---|---|
layoutDirection |
Int: the layout direction to set. |
setPrimaryAction
@NonNull open fun setPrimaryAction(@NonNull action: SliceAction): ListBuilder.HeaderBuilder
Sets the action to send when the header is clicked.
Additionally, the action specified here is used when the slice associated with this header is displayed in androidx.slice.widget.SliceView#MODE_SHORTCUT.
setSubtitle
@NonNull open fun setSubtitle(@NonNull subtitle: CharSequence): ListBuilder.HeaderBuilder
Sets the subtitle for the header builder. The subtitle should fit on a single line.
setSubtitle
@NonNull open fun setSubtitle(
@NonNull subtitle: CharSequence,
isLoading: Boolean
): ListBuilder.HeaderBuilder
Sets the subtitle for the header builder. The subtitle should fit on a single line.
Use this method to specify content that will appear in the template once it's been loaded.
| Parameters | |
|---|---|
isLoading |
Boolean: indicates whether the app is doing work to load the added content in the background or not. |
setSummary
@NonNull open fun setSummary(@NonNull summary: CharSequence): ListBuilder.HeaderBuilder
Sets the summary for the header builder. A summary is optional and should fit on a single line and is ellipsized if too long.
The summary should be a description of the contents of the list. This summary might be used when the rest of the list content is not shown (e.g. if SliceView presenting slice is configured to androidx.slice.widget.SliceView#MODE_SMALL.
setSummary
@NonNull open fun setSummary(
@NonNull summary: CharSequence,
isLoading: Boolean
): ListBuilder.HeaderBuilder
Sets the summary for the header builder. A summary is optional and should fit on a single line and is ellipsized if too long.
The summary should be a description of the contents of the list. This summary might be used when the rest of the list content is not shown (e.g. if SliceView presenting slice is configured to androidx.slice.widget.SliceView#MODE_SMALL.
Use this method to specify content that will appear in the template once it's been loaded.
| Parameters | |
|---|---|
isLoading |
Boolean: indicates whether the app is doing work to load the added content in the background or not. |
setTitle
@NonNull open fun setTitle(@NonNull title: CharSequence): ListBuilder.HeaderBuilder
Sets the title for the header builder. A title should be representative of the contents of the slice and fit on a single line.
setTitle
@NonNull open fun setTitle(
@NonNull title: CharSequence,
isLoading: Boolean
): ListBuilder.HeaderBuilder
Sets the title for the header builder. A title should be representative of the contents of the slice and fit on a single line.
Use this method to specify content that will appear in the template once it's been loaded.
| Parameters | |
|---|---|
isLoading |
Boolean: indicates whether the app is doing work to load the added content in the background or not. |