Section:

Customize the viewer's theme

This tutorial only applies to Xamarin.Android.

Customize the viewer's theme

The document viewer can be customized by overriding the PDFTronAppTheme xml style in your project. For example:

XML

1<style name="PDFTronAppTheme" parent="PDFTronAppThemeBase"> <!-- List of required attributes --> <item name="colorPrimary">@color/colorPrimary</item> <item name="colorPrimaryDark">@color/colorPrimaryDark</item> <item name="colorAccent">@color/colorAccent</item> <item name="actionMenuTextColor">@color/app_color_icon</item> <item name="drawerArrowStyle">@style/DrawerArrowStyle</item> <item name="actionModeBackground">?attr/colorPrimary</item> <item name="windowActionModeOverlay">true</item> </style>

Note that the theme name must either exactly match PDFTronAppTheme or passed into ViewerBuilder2.usingTheme(int) and extend PDFTronAppTheme theme. If you cannot extend PDFTronAppTheme and is extending an AppCompat theme, then you will need to define custom theme attributes for the theme to work properly. Here are the custom attributes:

Attribute

Description

pt_toolbar_theme

Used to style the options menu toolbar. See ToolbarTheme.

pt_toolbar_popup_style

Used to style the popup menu in the toolbar. See ToolbarPopupTheme.

pt_toolbar_style

Used to style the options menu toolbar background. See ToolbarStyle.

quick_menu_item

Used to style the quick menu. See QuickMenuItem.

custom_bookmarks_tab_layout

Used to style the outline/user bookmark/annotation list dialog. See BookmarksTabLayoutStyle.

pt_stamp_tab_layout_style

Used to style the stamp dialog tab layout. See StampTabLayoutStyle.

pt_bottom_bar_style

Used to style the bottom navigation bar. See PTBottomBarTheme.

pt_preset_bar_style

Used to style the annotation preset bar. See PTPresetBarTheme.

pt_annotation_toolbar_style

Used to style the annotation toolbar. See PTAnnotationToolbarTheme.

pt_toolbar_switcher_dialog_style

Used to style the toolbar switcher popup dialog. See PTToolbarSwitcherDialogTheme.

pt_toolbar_switcher_button_style

Used to style the toolbar switcher menu button. See PTToolbarSwitcherButtonTheme .

pt_toolbar_tab_action_button_style

Used to style the tab action button. See TabActionButtonTheme .

pt_document_slider_style

Used to style the page slider. See DocumentSliderStyle.

pt_pdf_tab_layout_style

Used to style the document tabs. See PdfTabLayoutStyle.

pt_floating_nav_style

Used to style the floating action buttons. See DefaultFloatingButtonNavStyle.

pt_sound_dialog_style

Used to style the sound annotation dialog. See SoundDialogStyle.

pt_page_indicator_style

Used to style the page indicator. See PageIndicatorTheme.

pt_sticky_note_dialog

Used to style the sticky note dialog. See DialogStickyNote.

pt_create_signature_dialog_style

Used to style the signature creation dialog. See CreateSignatureDialogTheme.

pt_menu_editor_dialog_style

Used to style the toolbar editor dialog. See MenuEditorDialogTheme.

pt_annot_style_dialog_style

Used to style the annotation style dialog. See AnnotStyleDialogTheme.

pt_annotation_filter_dialog_style

Used to style the annotation filter dialog. See AnnotationFilterDialogTheme.

pt_create_stamp_dialog_style

Used to style the stamp creation dialog. See CreateStampDialogTheme.

pt_add_page_dialog_style

Used to style the add page dialog. See AddPageDialogTheme.

pt_tab_switcher_dialog_style

Used to style the tab switcher dialog. See TabSwitcherDialogTheme.

pt_outline_dialog_style

Used to style the outline dialog. See OutlineDialogTheme

Additionally if you are not using a NoActionBar theme AppCompat theme, you will need to add the additional attributes:

XML

1<style name="PDFTronAppTheme" parent="Theme.AppCompat.*"> ... <!-- Action bar --> <item name="windowActionModeOverlay">true</item> <item name="windowActionBar">false</item> <item name="windowNoTitle">true</item> </style>

Note, we highly recommend extend PDFTronAppTheme whenever possible.

Customize a component

Similarly, each component in the viewer can be customized separately depending on your design requirements. To do so, the styles of each component must be referenced in PDFTronAppTheme. For example:

XML

1<style name="PDFTronAppTheme" parent="PDFTronAppThemeBase"> <!-- List of required attributes --> <item name="actionMenuTextColor">@color/app_color_icon</item> <item name="drawerArrowStyle">@style/DrawerArrowStyle</item> <item name="actionModeBackground">?attr/colorPrimary</item> <item name="windowActionModeOverlay">true</item> <!-- Custom annotation toolbar style (defined below) --> <item name="annotation_toolbar">@style/ToolbarButtonNavigationStyle</item> </style>
2
3<style name="CustomAnnotationToolbarStyle" parent="AnnotationToolbarStyle"> <item name="colorToolBackground">@color/annotation_tool_background</item> <item name="colorToolIcon">@color/app_color_icon</item> <item name="colorCloseIcon">@color/app_color_icon</item> </style>

Customizable components

For a full list of component styles available, please take a look at the default styles for PDFTronAppTheme in styles.xml of the Tools package.

A sample that uses styles to customize the document viewer can be found on our [GitHub repository](https://github.com/ApryseSDK/pdftron-android-samples/tree/master/CustomUI).

Did you find this helpful?

Trial setup questions?

Ask experts on Discord

Need other help?

Contact Support

Pricing or product questions?

Contact Sales