kandi X-RAY | AndroidPdfViewer Summary
kandi X-RAY | AndroidPdfViewer Summary
Android view for displaying PDFs rendered with PdfiumAndroid
Top functions reviewed by kandi - BETA
- Called when size changes
- Calculate the offset
- Loads a single cell
- Calculate a list of render range for each page
- Override in order to perform the actual painting
- Draws a PagePart on the canvas
- Draw the canvas at the specified page
- Called when a page is received
- On bounded velocity
- Handle a message
- Determines if the document can be scrollable
- Creates a string representation of an array
- Setup the layout for the view
- Checks if the document can be scrollable
- This method performs background rendering
- On touch event
- Zoom to double tap
- Detaches the rendering from a window
- Sets the night mode
- Called when a single tap is clicked
- Calculates the optimal max width and height of the view
- Handle a touch event
- Called when the PDFView has finished
- Calculates the page sizes based on the original page size
- Transforms an array of integers to integer array
- Zoom gesture to the desired scale factor
AndroidPdfViewer Key Features
AndroidPdfViewer Examples and Code Snippets
Trending Discussions on AndroidPdfViewer
Hello I'm developing app to open pdf files in webview in pdfactivity. I tried opening through intent its redirecting to system inbuilt apps but not pdfactivity.java. find the code below, I declared this in my webview activity,...
ANSWERAnswered 2022-Jan-18 at 02:33
Maybe this link could be very helpful for you How to display a PDF via Android web browser without "downloading" first
You can open a pdf using Google Docs Viewer.
As I don't have any experience with Android prior to JetPack compose, I'm unable to figure this out.
I'm using the
barteksc/AndroidPdfViewer but since this is an old library, I need to wrap this in a
AndroidView() composable. This works and displays the PDF correctly.
ANSWERAnswered 2022-Jan-29 at 05:40
You can set
PDFView background color with
I am working on a pdf editor.
I have made my changes on pdf files with OpenPDF core that is based on iText
And I am viewing the Pdf file with AndroidPdfViewer
My problems are:
Adding new annotations like text or tags or icons into an existing pdf file. ( SOLVED )
Show new changes right after annotations added into pdf file.( SOLVED )
Convert user click into Pdf file coordinates to add new annotation based on user clicked location.
Get click event on added annotations and read meta data that added into that annotation , for ex: read tag hash id that sets on icon annotation. ( SOLVED )
Remove added annotation from PDF File.
Any help appreciatedUPDATE
========================================================================Solution 1: Adding annotations
- Here is my code snippet for adding icon annotation into existing pdf file.
ANSWERAnswered 2020-Dec-10 at 09:56
Here is my code snippet for adding text into pdf file,
Your code does not add text into an existing pdf file. It creates a new PDF, adds text to it, and appends this new PDF to the existing file presumably already containing a PDF. The result is one file containing two PDFs.
Concatenating two files of the same type only seldom results in a valid file of that type. This does works for some textual formats (plain text, csv, ...) but hardly ever for binary formats, in particular not for PDFs.
Thus, your viewer gets to show a file which is invalid as a PDF, so your viewer could simply have displayed an error and quit. But PDF viewers are notorious for trying to repair the files they are given, each viewer in its own way. Thus, depending on the viewer you could also see either only the original file, only the new file, a combination of both, an empty file, or some other repair result.
So your observation,
but this will replace with all of the Pdf file, not just inserting into it
is not surprising but may well differ from viewer to viewer.
To actually change an existing file with OpenPDF (or any iText version before 6 or other library forked from such a version) you should read the existing PDF using a
PdfReader, manipulate that reader in a
PdfStamper, and close that stamper.
I have added AndroidPdfViewer library in my app, and i added a single pdf file in assets folder but i want to show it chapter wise as i added chapter wise buttons on home screen, i am sending page numbers as a string using putExtra to the pdfActivity to show only these pages of the pdf file.
In pdfActivity i am unable to convert this string to integer.
ANSWERAnswered 2020-Dec-18 at 09:20
Is there a reason you don't save the list of pages directly via an array and putExtra?HomeActivity.java
I am working with android pdfviewer lib to open and read a pdf, found at : https://github.com/barteksc/AndroidPdfViewer
But i got an error when i try to launch the pdf :
E/zygote64: No implementation found for long com.shockwave.pdfium.PdfiumCore.nativeOpenDocument(int, java.lang.String) (tried Java_com_shockwave_pdfium_PdfiumCore_nativeOpenDocument and Java_com_shockwave_pdfium_PdfiumCore_nativeOpenDocument__ILjava_lang_String_2)
E/PDFView: load pdf error java.lang.UnsatisfiedLinkError: No implementation found for long com.shockwave.pdfium.PdfiumCore.nativeOpenDocument(int, java.lang.String) (tried Java_com_shockwave_pdfium_PdfiumCore_nativeOpenDocument and Java_com_shockwave_pdfium_PdfiumCore_nativeOpenDocument__ILjava_lang_String_2)
i tried with differents implementation of the dependency but none worked :...
ANSWERAnswered 2020-Jul-16 at 13:34
This is how I'm loading pdf url:
No vulnerabilities reported
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