Page

Kotlin |Java

class Page : AutoCloseable

kotlin.Any
↳	android.graphics.pdf.PdfRenderer.Page

This class represents a PDF document page for rendering.

Summary

Constants
static Int	`RENDER_MODE_FOR_DISPLAY` Mode to render the content for display on a screen.
static Int	`RENDER_MODE_FOR_PRINT` Mode to render the content for printing.

Public methods
MutableList<Rect!>	`applyEdit(editRecord: FormEditRecord)` Applies a `FormEditRecord` to the PDF.
Unit	`close()` Closes this page.
FormWidgetInfo	`getFormWidgetInfoAtIndex(widgetIndex: Int)` Returns information about the widget with `widgetIndex`.
FormWidgetInfo	`getFormWidgetInfoAtPosition(x: Int, y: Int)` Returns information about the widget at the given point.
MutableList<FormWidgetInfo!>	`getFormWidgetInfos()` Returns information about all form widgets on the page, or an empty list if there are no form widgets on the page.
MutableList<FormWidgetInfo!>	`getFormWidgetInfos(types: IntArray)` Returns information about all form widgets of the specified types on the page, or an empty list if there are no form widgets of the specified types on the page.
MutableList<PdfPageGotoLinkContent!>	`getGotoLinks()` Gets bookmarks and goto links present on the page of a pdf document.
Int	`getHeight()` Returns the height of the `PdfRenderer.Page` object in points (1/72").
MutableList<PdfPageImageContent!>	`getImageContents()` Return list of `PdfPageImageContent` found on the page, ordered left to right and top to bottom.
Int	`getIndex()` Gets the page index.
MutableList<PdfPageLinkContent!>	`getLinkContents()` Get the bounds and URLs of all the links on the page.
MutableList<PdfPageTextContent!>	`getTextContents()` Return list of `PdfPageTextContent` found on the page, ordered left to right and top to bottom.
Int	`getWidth()` Returns the width of the `PdfRenderer.Page` object in points (1/72").
Unit	`render(destination: Bitmap, destClip: Rect?, transform: Matrix?, params: RenderParams)` Renders a page to a bitmap.
Unit	`render(destination: Bitmap, destClip: Rect?, transform: Matrix?, renderMode: Int)` Renders a page to a bitmap.
MutableList<PageMatchBounds!>	`searchText(query: String)` Search for the given string on the page and returns the bounds of all the matches.
PageSelection?	`selectContent(start: SelectionBoundary, stop: SelectionBoundary)` Return a `PageSelection` which represents the selected content that spans between the two boundaries.

Protected methods
Unit	`finalize()`

Constants

RENDER_MODE_FOR_DISPLAY

Added in API level 21

static val RENDER_MODE_FOR_DISPLAY: Int

Mode to render the content for display on a screen.

Value: 1

RENDER_MODE_FOR_PRINT

Added in API level 21

static val RENDER_MODE_FOR_PRINT: Int

Mode to render the content for printing.

Value: 2

Public methods

applyEdit

Added in API level 35

fun applyEdit(editRecord: FormEditRecord): MutableList<Rect!>

Applies a FormEditRecord to the PDF.

Apps must call render(android.graphics.Bitmap,android.graphics.Rect,android.graphics.Matrix,android.graphics.pdf.RenderParams) to render new bitmaps for the corresponding areas of the page.

For click type FormEditRecords, performs a click on android.graphics.pdf.models.FormEditRecord#getClickPoint()

For set text type FormEditRecords, sets the text value of the form widget.

For set indices type FormEditRecords, sets the android.graphics.pdf.models.FormEditRecord#getSelectedIndices() as selected and all others as unselected for the form widget indicated by the record.

Parameters
`editRecord`	FormEditRecord: the `FormEditRecord` to be applied This value cannot be `null`.

Return
`MutableList<Rect!>`	Rectangular areas of the page bitmap that have been invalidated by this action. This value cannot be `null`.

Exceptions
`java.lang.IllegalArgumentException`	if the provided `FormEditRecord` cannot be applied to the widget indicated by the index, or if the index does not correspond to a widget on the page.
`java.lang.IllegalStateException`	If the page is already closed.

close

Added in API level 21

fun close(): Unit

Closes this page.

Exceptions
`java.lang.Exception`	if this resource cannot be closed

See Also

android.graphics.pdf.PdfRenderer#openPage(int)

getFormWidgetInfoAtIndex

Added in API level 35

fun getFormWidgetInfoAtIndex(widgetIndex: Int): FormWidgetInfo

Returns information about the widget with widgetIndex.

Parameters
`widgetIndex`	Int: the index of the widget within the page's "Annot" array in the PDF document, available on results of previous calls to `getFormWidgetInfos(int[])` or `getFormWidgetInfoAtPosition(int,int)` via `FormWidgetInfo.getWidgetIndex()`. Value is 0 or greater

Return
`FormWidgetInfo`	This value cannot be `null`.

Exceptions
`java.lang.IllegalArgumentException`	if there is no form widget at the provided index.
`java.lang.IllegalStateException`	if the renderer or page is closed

getFormWidgetInfoAtPosition

Added in API level 35

fun getFormWidgetInfoAtPosition(
    x: Int, 
    y: Int
): FormWidgetInfo

Returns information about the widget at the given point.

Parameters
`x`	Int: the x position of the widget on the page, in points
`y`	Int: the y position of the widget on the page, in points

Return
`FormWidgetInfo`	This value cannot be `null`.

Exceptions
`java.lang.IllegalArgumentException`	if there is no form widget at the provided position.
`java.lang.IllegalStateException`	if the renderer or page is closed

getFormWidgetInfos

Added in API level 35

fun getFormWidgetInfos(): MutableList<FormWidgetInfo!>

Returns information about all form widgets on the page, or an empty list if there are no form widgets on the page.

Return
`MutableList<FormWidgetInfo!>`	This value cannot be `null`.

Exceptions
`java.lang.IllegalStateException`	if the renderer or page is closed

getFormWidgetInfos

Added in API level 35

fun getFormWidgetInfos(types: IntArray): MutableList<FormWidgetInfo!>

Returns information about all form widgets of the specified types on the page, or an empty list if there are no form widgets of the specified types on the page.

Parameters
`types`	IntArray: the types of form widgets to return, or an empty array to return all widgets This value cannot be `null`.

Return
`MutableList<FormWidgetInfo!>`	This value cannot be `null`.

Exceptions
`java.lang.IllegalStateException`	if the renderer or page is closed

getGotoLinks

Added in API level 35

fun getGotoLinks(): MutableList<PdfPageGotoLinkContent!>

Gets bookmarks and goto links present on the page of a pdf document. Goto Links are the internal navigation links which directs the user to different location within the same document.

Return
`MutableList<PdfPageGotoLinkContent!>`	list of all goto links `PdfPageGotoLinkContent` on a page, ordered left to right and top to bottom. This value cannot be `null`.

Exceptions
`java.lang.IllegalStateException`	If the document/page is closed before invocation.

getHeight

Added in API level 21

fun getHeight(): Int

Returns the height of the PdfRenderer.Page object in points (1/72"). It is not guaranteed that all pages will have the same height and the viewport should be resized to the page height.

Return
`Int`	height of the page Value is 0 or greater

Exceptions
`java.lang.IllegalStateException`	If the document/page is closed before invocation.

getImageContents

Added in API level 35

fun getImageContents(): MutableList<PdfPageImageContent!>

Return list of PdfPageImageContent found on the page, ordered left to right and top to bottom. It contains all the content associated with images found on the page including alt text. The list will be empty if there are no results found. Currently, localisation does not have any impact on the order in which PdfPageImageContent is returned.

Return
`MutableList<PdfPageImageContent!>`	list of image content found on the page. This value cannot be `null`.

Exceptions
`java.lang.IllegalStateException`	If the document/page is closed before invocation.

getIndex

Added in API level 21

fun getIndex(): Int

Gets the page index.

Return
`Int`	The index. Value is 0 or greater

getLinkContents

Added in API level 35

fun getLinkContents(): MutableList<PdfPageLinkContent!>

Get the bounds and URLs of all the links on the page.

Return
`MutableList<PdfPageLinkContent!>`	list of all links on the page. This value cannot be `null`.

Exceptions
`java.lang.IllegalStateException`	If the document/page is closed before invocation.

getTextContents

Added in API level 35

fun getTextContents(): MutableList<PdfPageTextContent!>

Return list of PdfPageTextContent found on the page, ordered left to right and top to bottom. It contains all the content associated with text found on the page. The list will be empty if there are no results found. Currently, localisation does not have any impact on the order in which PdfPageTextContent is returned.

Return
`MutableList<PdfPageTextContent!>`	list of text content found on the page. This value cannot be `null`.

Exceptions
`java.lang.IllegalStateException`	If the document/page is closed before invocation.

getWidth

Added in API level 21

fun getWidth(): Int

Returns the width of the PdfRenderer.Page object in points (1/72"). It is not guaranteed that all pages will have the same width and the viewport should be resized to the page width.

Return
`Int`	width of the page Value is 0 or greater

Exceptions
`java.lang.IllegalStateException`	If the document/page is closed before invocation.

render

Added in API level 35

fun render(
    destination: Bitmap, 
    destClip: Rect?, 
    transform: Matrix?, 
    params: RenderParams
): Unit

Renders a page to a bitmap. In case of default zoom, the Bitmap dimensions will be equal to the page dimensions. In this case, Rect parameter can be null.

In case of zoom, the Rect parameter needs to be specified which represents the offset from top and left for tile generation purposes. In this case, the Bitmap dimensions should be equal to the tile dimensions.

Note: The method will take care of closing the bitmap. Should be invoked on the android.annotation.WorkerThread as it is long-running task.

Parameters
`destination`	Bitmap: Destination bitmap to write to. This value cannot be `null`.
`destClip`	Rect?: If null, default zoom is applied. In case the value is non-null, the value specifies the top top-left corner of the tile.
`transform`	Matrix?: Applied to scale the bitmap up/down from default 1/72 points. This value may be `null`.
`params`	RenderParams: Render params for the changing display mode and/or annotations. This value cannot be `null`.

Exceptions
`java.lang.IllegalStateException`	If the document/page is closed before invocation.

render

Added in API level 21

fun render(
    destination: Bitmap, 
    destClip: Rect?, 
    transform: Matrix?, 
    renderMode: Int
): Unit

Renders a page to a bitmap.

You may optionally specify a rectangular clip in the bitmap bounds. No rendering outside the clip will be performed, hence it is your responsibility to initialize the bitmap outside the clip.

You may optionally specify a matrix to transform the content from page coordinates which are in points (1/72") to bitmap coordinates which are in pixels. If this matrix is not provided this method will apply a transformation that will fit the whole page to the destination clip if provided or the destination bitmap if no clip is provided.

The clip and transformation are useful for implementing tile rendering where the destination bitmap contains a portion of the image, for example when zooming. Another useful application is for printing where the size of the bitmap holding the page is too large and a client can render the page in stripes.

Note: The destination bitmap format must be ARGB.

Note: The optional transformation matrix must be affine as per Matrix.isAffine(). Hence, you can specify rotation, scaling, translation but not a perspective transformation.

Parameters
`destination`	Bitmap: Destination bitmap to which to render. This value cannot be `null`.
`destClip`	Rect?: Optional clip in the bitmap bounds. This value may be `null`.
`transform`	Matrix?: Optional transformation to apply when rendering. This value may be `null`.
`renderMode`	Int: The render mode. Value is `android.graphics.pdf.PdfRenderer.Page#RENDER_MODE_FOR_DISPLAY`, or `android.graphics.pdf.PdfRenderer.Page#RENDER_MODE_FOR_PRINT`

See Also

#RENDER_MODE_FOR_DISPLAY
#RENDER_MODE_FOR_PRINT

searchText

Added in API level 35

fun searchText(query: String): MutableList<PageMatchBounds!>

Search for the given string on the page and returns the bounds of all the matches. The list will be empty if there are no matches on the page. If this function was invoked previously for any page, it will wait for that operation to complete before this operation is started.

Note: Should be invoked on the android.annotation.WorkerThread as it is long-running task.

Parameters
`query`	String: plain search string for querying the document This value cannot be `null`.

Return
`MutableList<PageMatchBounds!>`	List of `PageMatchBounds` representing the bounds of each match on the page. This value cannot be `null`.

Exceptions
`java.lang.IllegalStateException`	If the document/page is closed before invocation.

selectContent

Added in API level 35

fun selectContent(
    start: SelectionBoundary, 
    stop: SelectionBoundary
): PageSelection?

Return a PageSelection which represents the selected content that spans between the two boundaries. The boundaries can be either exactly defined with text indexes, or approximately defined with points on the page. The resulting selection will also be exactly defined with both indexes and points. If the start and stop boundary are both at the same point, selects the word at that point. In case the selection from the given boundaries result in an empty space, then the method returns null. The start and stop SelectionBoundary in PageSelection resolves to the "nearest" index when returned.

Note: Should be invoked on a android.annotation.WorkerThread as it is long-running task.

Parameters
`start`	SelectionBoundary: boundary where the selection starts (inclusive) This value cannot be `null`.
`stop`	SelectionBoundary: boundary where the selection stops (exclusive) This value cannot be `null`.

Return
`PageSelection?`	collection of the selected content for text, images, etc.

Exceptions
`java.lang.IllegalStateException`	If the document/page is closed before invocation.

Protected methods

finalize

Added in API level 21

protected fun finalize(): Unit

Exceptions
`java.lang.Throwable`	the `Exception` raised by this method