AndroidPdfViewer | Android view for displaying PDFs rendered with PdfiumAndroid | Document Editor library

by barteksc Java Version: Current License: Apache-2.0

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kandi X-RAY | AndroidPdfViewer Summary

AndroidPdfViewer is a Java library typically used in Editor, Document Editor applications. AndroidPdfViewer has no bugs, it has no vulnerabilities, it has build file available, it has a Permissive License and it has medium support. You can download it from GitHub.

Android view for displaying PDFs rendered with PdfiumAndroid

Support

Quality

Security

License

Reuse

kandi-support Support

AndroidPdfViewer has a medium active ecosystem.
It has 6713 star(s) with 1451 fork(s). There are 207 watchers for this library.
It had no major release in the last 12 months.
There are 541 open issues and 422 have been closed. On average issues are closed in 20 days. There are 24 open pull requests and 0 closed requests.
It has a neutral sentiment in the developer community.
The latest version of AndroidPdfViewer is current.

AndroidPdfViewer Support

Best in #Document Editor

Average in #Document Editor

AndroidPdfViewer Support

Best in #Document Editor

Average in #Document Editor

quality kandi Quality

AndroidPdfViewer has 0 bugs and 0 code smells.

AndroidPdfViewer Quality

Best in #Document Editor

Average in #Document Editor

AndroidPdfViewer Quality

Best in #Document Editor

Average in #Document Editor

security Security

AndroidPdfViewer has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
AndroidPdfViewer code analysis shows 0 unresolved vulnerabilities.
There are 0 security hotspots that need review.

AndroidPdfViewer Security

Best in #Document Editor

Average in #Document Editor

AndroidPdfViewer Security

Best in #Document Editor

Average in #Document Editor

license License

AndroidPdfViewer is licensed under the Apache-2.0 License. This license is Permissive.
Permissive licenses have the least restrictions, and you can use them in most projects.

AndroidPdfViewer License

Best in #Document Editor

Average in #Document Editor

AndroidPdfViewer License

Best in #Document Editor

Average in #Document Editor

build Reuse

AndroidPdfViewer releases are not available. You will need to build from source code and install.
Build file is available. You can build the component from source.
Installation instructions, examples and code snippets are available.
AndroidPdfViewer saves you 1538 person hours of effort in developing the same functionality from scratch.
It has 3425 lines of code, 370 functions and 52 files.
It has medium code complexity. Code complexity directly impacts maintainability of the code.

AndroidPdfViewer Reuse

Best in #Document Editor

Average in #Document Editor

AndroidPdfViewer Reuse

Best in #Document Editor

Average in #Document Editor

Top functions reviewed by kandi - BETA

kandi has reviewed AndroidPdfViewer and discovered the below as its top functions. This is intended to give you an instant insight into AndroidPdfViewer implemented functionality, and help decide if they suit your requirements.

Gets the render range list .
Implementation of the onDraw method .
Setup the layout for the view
Called when a page is bound .
Executes the specified rendering task .
Calculates the optimal maximum width and height of the view .
Calculate the offset of the pages
Copies an input stream to a file .
Returns the file name of the file .
This method is called by the background thread

AndroidPdfViewer Key Features

Android view for displaying PDFs rendered with PdfiumAndroid

AndroidPdfViewer Examples and Code Snippets

See all related Code Snippets

ProGuard

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-keep class com.shockwave.**

Include PDFView in your layout

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&lt;com.github.barteksc.pdfviewer.PDFView
        android:id="@+id/pdfView"
        android:layout_width="match_parent"
        android:layout_height="match_parent"/&gt;

Load a PDF file

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pdfView.fromUri(Uri)
or
pdfView.fromFile(File)
or
pdfView.fromBytes(byte[])
or
pdfView.fromStream(InputStream) // stream is written to bytearray - native code cannot use Java Streams
or
pdfView.fromSource(DocumentSource)
or
pdfView.fromAsset(String)
    .pages(0, 2, 1, 3, 3, 3) // all pages are displayed by default
    .enableSwipe(true) // allows to block changing pages using swipe
    .swipeHorizontal(false)
    .enableDoubletap(true)
    .defaultPage(0)
    // allows to draw something on the current page, usually visible in the middle of the screen
    .onDraw(onDrawListener)
    // allows to draw something on all pages, separately for every page. Called only for visible pages
    .onDrawAll(onDrawListener)
    .onLoad(onLoadCompleteListener) // called after document is loaded and starts to be rendered
    .onPageChange(onPageChangeListener)
    .onPageScroll(onPageScrollListener)
    .onError(onErrorListener)
    .onPageError(onPageErrorListener)
    .onRender(onRenderListener) // called after document is rendered for the first time
    // called on single tap, return true if handled, false to toggle scroll handle visibility
    .onTap(onTapListener)
    .onLongPress(onLongPressListener)
    .enableAnnotationRendering(false) // render annotations (such as comments, colors or forms)
    .password(null)
    .scrollHandle(null)
    .enableAntialiasing(true) // improve rendering a little bit on low-res screens
    // spacing between pages in dp. To define spacing color, set view background
    .spacing(0)
    .autoSpacing(false) // add dynamic spacing to fit each page on its own on the screen
    .linkHandler(DefaultLinkHandler)
    .pageFitPolicy(FitPolicy.WIDTH) // mode to fit pages in the view
    .fitEachPage(false) // fit each page to the view, else smaller pages are scaled relative to largest page.
    .pageSnap(false) // snap pages to screen boundaries
    .pageFling(false) // make a fling change only a single page like ViewPager
    .nightMode(false) // toggle night mode
    .load();

Document sources

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pdfView.fromUri(Uri)
pdfView.fromFile(File)
pdfView.fromBytes(byte[])
pdfView.fromStream(InputStream)
pdfView.fromAsset(String)

Double tap zooming

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void setMinZoom(float zoom);
void setMidZoom(float zoom);
void setMaxZoom(float zoom);

How can I fit document to screen width (eg. on orientation change)?

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Configurator.onRender(new OnRenderListener() {
    @Override
    public void onInitiallyRendered(int pages, float pageWidth, float pageHeight) {
        pdfView.fitToWidth(pageIndex);
    }
});

How can I scroll through single pages like a ViewPager?

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    .swipeHorizontal(true)
    .pageSnap(true)
    .autoSpacing(true)
    .pageFling(true)

License

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Copyright 2017 Bartosz Schiller

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

How to open pdf files in webview in pdfactivity?

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   final String pdfurl = view.getHitTestResult().getExtra();
         Intent intent = new Intent(PdfActivity.this,PdfViewer.class);
         intent.putExtra("PDFURL",pdfurl);
         startActivity(intent);

package ak.wp.meto.activity;

import android.app.Activity;
import android.os.AsyncTask;
import android.os.Bundle;
import android.view.KeyEvent;
import android.widget.TextView;
import android.widget.Toast;
import com.github.barteksc.pdfviewer.PDFView;
import java.io.BufferedInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import ak.wp.meto.R;

public class PdfViewer extends Activity {
    private TextView txt; // You can remove if you don't want this
    private PDFView pdf;
    String value = null;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_custom_pdf);
        Bundle bundle = getIntent().getExtras();
        if (bundle != null) {
            value = bundle.getString("PDFURL");
        }
        System.out.println("PRINT PDFVIEWER DATA" +value);
        pdf = (PDFView) findViewById(R.id.pdfView); //github.barteksc
        txt = findViewById(R.id.txtPdf);
        String pdfUrl = value;
        try{
            new RetrievePdfStream().execute(pdfUrl);
        }
        catch (Exception e){
            Toast.makeText(this, "Failed to load Url :" + e.toString(), Toast.LENGTH_SHORT).show();
        }
    }

    class RetrievePdfStream extends AsyncTask<String, Void, InputStream> {
        @Override
        protected InputStream doInBackground(String... strings) {
            InputStream inputStream = null;
            try {
                URL url = new URL(strings[0]);
                HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection();
                if (urlConnection.getResponseCode() == 200) {
                    inputStream = new BufferedInputStream(urlConnection.getInputStream());
                }
            } catch (IOException e) {
                return null;
            }
            return inputStream;
        }
        @Override
        protected void onPostExecute(InputStream inputStream) {
            pdf.fromStream(inputStream).load();
        }
    }

}

-----------------------

   final String pdfurl = view.getHitTestResult().getExtra();
         Intent intent = new Intent(PdfActivity.this,PdfViewer.class);
         intent.putExtra("PDFURL",pdfurl);
         startActivity(intent);

package ak.wp.meto.activity;

import android.app.Activity;
import android.os.AsyncTask;
import android.os.Bundle;
import android.view.KeyEvent;
import android.widget.TextView;
import android.widget.Toast;
import com.github.barteksc.pdfviewer.PDFView;
import java.io.BufferedInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import ak.wp.meto.R;

public class PdfViewer extends Activity {
    private TextView txt; // You can remove if you don't want this
    private PDFView pdf;
    String value = null;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_custom_pdf);
        Bundle bundle = getIntent().getExtras();
        if (bundle != null) {
            value = bundle.getString("PDFURL");
        }
        System.out.println("PRINT PDFVIEWER DATA" +value);
        pdf = (PDFView) findViewById(R.id.pdfView); //github.barteksc
        txt = findViewById(R.id.txtPdf);
        String pdfUrl = value;
        try{
            new RetrievePdfStream().execute(pdfUrl);
        }
        catch (Exception e){
            Toast.makeText(this, "Failed to load Url :" + e.toString(), Toast.LENGTH_SHORT).show();
        }
    }

    class RetrievePdfStream extends AsyncTask<String, Void, InputStream> {
        @Override
        protected InputStream doInBackground(String... strings) {
            InputStream inputStream = null;
            try {
                URL url = new URL(strings[0]);
                HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection();
                if (urlConnection.getResponseCode() == 200) {
                    inputStream = new BufferedInputStream(urlConnection.getInputStream());
                }
            } catch (IOException e) {
                return null;
            }
            return inputStream;
        }
        @Override
        protected void onPostExecute(InputStream inputStream) {
            pdf.fromStream(inputStream).load();
        }
    }

}

Background color of barteksc/AndroidPdfViewer

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factory = { context ->
    PDFView(
        context,
        null
    ).also {
        it.setBackgroundColor(Color.Transparent.toArgb())
    }
},

AndroidView(
    factory = { context ->
        PDFView(
            context,
            null
        ).also {
            it.setBackgroundColor(Color.Transparent.toArgb())
        }
    },
    update = { pdfView ->
        pdfView
            .fromStream(pdfView.context.resources.openRawResource(R.raw.sample))
            .autoSpacing(false)
            .spacing(25)
            .pageFitPolicy(FitPolicy.BOTH)
            .load()
    },
    modifier = Modifier
        .fillMaxSize()
        .background(Color.Red)
)

-----------------------

factory = { context ->
    PDFView(
        context,
        null
    ).also {
        it.setBackgroundColor(Color.Transparent.toArgb())
    }
},

AndroidView(
    factory = { context ->
        PDFView(
            context,
            null
        ).also {
            it.setBackgroundColor(Color.Transparent.toArgb())
        }
    },
    update = { pdfView ->
        pdfView
            .fromStream(pdfView.context.resources.openRawResource(R.raw.sample))
            .autoSpacing(false)
            .spacing(25)
            .pageFitPolicy(FitPolicy.BOTH)
            .load()
    },
    modifier = Modifier
        .fillMaxSize()
        .background(Color.Red)
)

Adding Text/Annotations into existing PDF file and View/Rendering the output in android

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PdfReader reader = new PdfReader("original.pdf");
PdfStamper stamper = new PdfStamper(reader, new FileOutputStream("original-stamped.pdf"));

PdfContentByte cb = stamper.getOverContent(1);
cb.beginText();
cb.setTextMatrix(100, 400);
cb.showText("Text at position 100,400.");
cb.endText();

stamper.close();
reader.close();

How to convert a string containing numbers separated by comma to Integer in java?

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int[] pages = {1, 5, 10, 12, 15};
i.putExtra("pages", pages);

int[] pages = intent.getIntArrayExtra("pages");
pdfView.fromAsset(result)
       .pages(pages)

-----------------------

int[] pages = {1, 5, 10, 12, 15};
i.putExtra("pages", pages);

int[] pages = intent.getIntArrayExtra("pages");
pdfView.fromAsset(result)
       .pages(pages)

kotlin androidpdfviewer lib doesn't seem to load

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<androidx.constraintlayout.widget.ConstraintLayout
//....
<com.github.barteksc.pdfviewer.PDFView
            android:id="@+id/pdfView"
            android:layout_width="match_parent"
            android:layout_height="@dimen/zeroDp"
            android:visibility="visible"
            app:layout_constraintBottom_toTopOf="@+id/tvFeedback"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@+id/view" />
//...
</androidx.constraintlayout.widget.ConstraintLayout>

private fun downloadFile(responseBody: ResponseBody) {// get responseBody after making Http req . I'm using retrofit 
        binding?.let {
            //it.pdfView.removeAllViews()
            it.pdfView.fromBytes(responseBody.bytes())
                    .defaultPage(pageNumber)
                    .onPageChange(this@PdfReaderFragment)
                    .enableAnnotationRendering(true)
                    .onLoad(this@PdfReaderFragment)
                    .spacing(10) // in dp
                    .onPageError(this@PdfReaderFragment)
                    .onError { onError("File not in PDF format or corrupted") }
                    .load()
        }


    }

OnPageChangeListener
OnLoadCompleteListener
OnPageErrorListener

override fun loadComplete(nbPages: Int) {
        binding?.let {
            printBookmarksTree(it.pdfView.tableOfContents, "-")
        }

    }

override fun onPageError(page: Int, t: Throwable?) {
        Log.d("PDF", t?.message)
    }
override fun onPageChanged(page: Int, pageCount: Int) {
        pageNumber = page
        Log.d("PDF", "Page number $pageNumber $pageCount")
        setTitleMessageBackArrow(String.format("%s %s / %s", "your fragment title", page + 1, pageCount))
    }

    private fun printBookmarksTree(tree: List<Bookmark>, sep: String) {
        for (b in tree) {
            Log.e("PDF", String.format("%s %s, p %d", sep, b.title, b.pageIdx))
            if (b.hasChildren()) {
                printBookmarksTree(b.children, "$sep-")
            }
        }
    }

-----------------------

<androidx.constraintlayout.widget.ConstraintLayout
//....
<com.github.barteksc.pdfviewer.PDFView
            android:id="@+id/pdfView"
            android:layout_width="match_parent"
            android:layout_height="@dimen/zeroDp"
            android:visibility="visible"
            app:layout_constraintBottom_toTopOf="@+id/tvFeedback"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@+id/view" />
//...
</androidx.constraintlayout.widget.ConstraintLayout>

private fun downloadFile(responseBody: ResponseBody) {// get responseBody after making Http req . I'm using retrofit 
        binding?.let {
            //it.pdfView.removeAllViews()
            it.pdfView.fromBytes(responseBody.bytes())
                    .defaultPage(pageNumber)
                    .onPageChange(this@PdfReaderFragment)
                    .enableAnnotationRendering(true)
                    .onLoad(this@PdfReaderFragment)
                    .spacing(10) // in dp
                    .onPageError(this@PdfReaderFragment)
                    .onError { onError("File not in PDF format or corrupted") }
                    .load()
        }


    }

OnPageChangeListener
OnLoadCompleteListener
OnPageErrorListener

override fun loadComplete(nbPages: Int) {
        binding?.let {
            printBookmarksTree(it.pdfView.tableOfContents, "-")
        }

    }

override fun onPageError(page: Int, t: Throwable?) {
        Log.d("PDF", t?.message)
    }
override fun onPageChanged(page: Int, pageCount: Int) {
        pageNumber = page
        Log.d("PDF", "Page number $pageNumber $pageCount")
        setTitleMessageBackArrow(String.format("%s %s / %s", "your fragment title", page + 1, pageCount))
    }

    private fun printBookmarksTree(tree: List<Bookmark>, sep: String) {
        for (b in tree) {
            Log.e("PDF", String.format("%s %s, p %d", sep, b.title, b.pageIdx))
            if (b.hasChildren()) {
                printBookmarksTree(b.children, "$sep-")
            }
        }
    }

-----------------------

<androidx.constraintlayout.widget.ConstraintLayout
//....
<com.github.barteksc.pdfviewer.PDFView
            android:id="@+id/pdfView"
            android:layout_width="match_parent"
            android:layout_height="@dimen/zeroDp"
            android:visibility="visible"
            app:layout_constraintBottom_toTopOf="@+id/tvFeedback"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@+id/view" />
//...
</androidx.constraintlayout.widget.ConstraintLayout>

private fun downloadFile(responseBody: ResponseBody) {// get responseBody after making Http req . I'm using retrofit 
        binding?.let {
            //it.pdfView.removeAllViews()
            it.pdfView.fromBytes(responseBody.bytes())
                    .defaultPage(pageNumber)
                    .onPageChange(this@PdfReaderFragment)
                    .enableAnnotationRendering(true)
                    .onLoad(this@PdfReaderFragment)
                    .spacing(10) // in dp
                    .onPageError(this@PdfReaderFragment)
                    .onError { onError("File not in PDF format or corrupted") }
                    .load()
        }


    }

OnPageChangeListener
OnLoadCompleteListener
OnPageErrorListener

override fun loadComplete(nbPages: Int) {
        binding?.let {
            printBookmarksTree(it.pdfView.tableOfContents, "-")
        }

    }

override fun onPageError(page: Int, t: Throwable?) {
        Log.d("PDF", t?.message)
    }
override fun onPageChanged(page: Int, pageCount: Int) {
        pageNumber = page
        Log.d("PDF", "Page number $pageNumber $pageCount")
        setTitleMessageBackArrow(String.format("%s %s / %s", "your fragment title", page + 1, pageCount))
    }

    private fun printBookmarksTree(tree: List<Bookmark>, sep: String) {
        for (b in tree) {
            Log.e("PDF", String.format("%s %s, p %d", sep, b.title, b.pageIdx))
            if (b.hasChildren()) {
                printBookmarksTree(b.children, "$sep-")
            }
        }
    }

-----------------------

<androidx.constraintlayout.widget.ConstraintLayout
//....
<com.github.barteksc.pdfviewer.PDFView
            android:id="@+id/pdfView"
            android:layout_width="match_parent"
            android:layout_height="@dimen/zeroDp"
            android:visibility="visible"
            app:layout_constraintBottom_toTopOf="@+id/tvFeedback"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@+id/view" />
//...
</androidx.constraintlayout.widget.ConstraintLayout>

private fun downloadFile(responseBody: ResponseBody) {// get responseBody after making Http req . I'm using retrofit 
        binding?.let {
            //it.pdfView.removeAllViews()
            it.pdfView.fromBytes(responseBody.bytes())
                    .defaultPage(pageNumber)
                    .onPageChange(this@PdfReaderFragment)
                    .enableAnnotationRendering(true)
                    .onLoad(this@PdfReaderFragment)
                    .spacing(10) // in dp
                    .onPageError(this@PdfReaderFragment)
                    .onError { onError("File not in PDF format or corrupted") }
                    .load()
        }


    }

OnPageChangeListener
OnLoadCompleteListener
OnPageErrorListener

override fun loadComplete(nbPages: Int) {
        binding?.let {
            printBookmarksTree(it.pdfView.tableOfContents, "-")
        }

    }

override fun onPageError(page: Int, t: Throwable?) {
        Log.d("PDF", t?.message)
    }
override fun onPageChanged(page: Int, pageCount: Int) {
        pageNumber = page
        Log.d("PDF", "Page number $pageNumber $pageCount")
        setTitleMessageBackArrow(String.format("%s %s / %s", "your fragment title", page + 1, pageCount))
    }

    private fun printBookmarksTree(tree: List<Bookmark>, sep: String) {
        for (b in tree) {
            Log.e("PDF", String.format("%s %s, p %d", sep, b.title, b.pageIdx))
            if (b.hasChildren()) {
                printBookmarksTree(b.children, "$sep-")
            }
        }
    }

See all related Code Snippets

Community Discussions

Trending Discussions on AndroidPdfViewer

How to open pdf files in webview in pdfactivity?
Background color of barteksc/AndroidPdfViewer
Adding Text/Annotations into existing PDF file and View/Rendering the output in android
How to convert a string containing numbers separated by comma to Integer in java?
kotlin androidpdfviewer lib doesn't seem to load

Trending Discussions on AndroidPdfViewer

QUESTION

How to open pdf files in webview in pdfactivity?

Asked 2022-Feb-26 at 00:46

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,

 private class MyWebViewClient extends WebViewClient {
        @Override
        public boolean shouldOverrideUrlLoading(WebView view, String url) {
                Uri uri = WebvActivity.this.getIntent().getData();
                Intent intent = new Intent(Intent.ACTION_VIEW);
                intent.setDataAndType(uri, "application/pdf");
                intent.putExtra(PdfActivity.EXTRA_PDFFILENAME, "url");
                startActivity(intent);
            return super.shouldOverrideUrlLoading(view, url);
        }

I'm using PdfViewer.jar library, In README text it is mentioned use

Intent intent = new Intent(this, WebviewActivity.class);
     intent.putExtra(PdfViewerActivity.EXTRA_PDFFILENAME, "PATH TO PDF GOES HERE");
     startActivity(intent);

How can I get URL of pdf files from the webpage in webview & load them in PdfActivity. See below link for your reference, https://sourceforge.net/p/andpdf/code/HEAD/tree/tag/Beta_0_1_11/AndroidPdfViewer/activitysrc/net/sf/andpdf/

ANSWER

Answered 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.

Source https://stackoverflow.com/questions/70749149

QUESTION

Background color of barteksc/AndroidPdfViewer

Asked 2022-Feb-04 at 09:27

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.

@Composable
fun PDFView(
    byteArray: ByteArray,
) {
    AndroidView(
        modifier = Modifier
            .fillMaxSize(),

        factory = { context ->
            PDFView(
                ContextThemeWrapper(context, R.style.PdfView), null
            )
        },
        update = { pdfView ->
            Log.d(TAG, "PDF view UPDATE called")
            pdfView
                .fromBytes(byteArray)
                .autoSpacing(false)
                .spacing(25)
                .pageFitPolicy(FitPolicy.BOTH)
                .load()
        }
    )
}

As per documentation of the lib, setting some spacing and adding a background colour would result in a visual separation of the PDF pages. Setting the AndroidView's modifier background does not work. So I tried setting background on R.style.PDFView like so (tried several options):

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <style name="PdfView" parent="Theme.MyPDFView">
        <item name="colorSurface">@color/blue</item>
        <item name="background">@color/blue</item>
        <item name="backgroundColor">@color/blue</item>
    </style>
</resources>

But this still does not change the background. To be complete, the Theme.MyPDFTheme looks as follows:

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <style name="Theme.MyPDFView" parent="Theme.MaterialComponents.DayNight">
        <item name="android:statusBarColor">@color/background_material_light</item>
        <item name="android:windowLightStatusBar">true</item>

        <item name="android:navigationBarColor">@color/background_material_light</item>
        <item name="android:windowLightNavigationBar">true</item>
    </style>
</resources>

I also tried setting background color in Theme.kt

private val LightColorPalette = lightColors(
    surface = Color.Green,
    background = Color.Yellow,

But the background of the PDFView does not change, yes, device is in light mode. How can I set the background on this view?

ANSWER

Answered 2022-Jan-29 at 05:40

You can set PDFView background color with setBackgroundColor:

factory = { context ->
    PDFView(
        context,
        null
    ).also {
        it.setBackgroundColor(Color.Transparent.toArgb())
    }
},

Then the background color set with the Modifier will become visible. Full example:

AndroidView(
    factory = { context ->
        PDFView(
            context,
            null
        ).also {
            it.setBackgroundColor(Color.Transparent.toArgb())
        }
    },
    update = { pdfView ->
        pdfView
            .fromStream(pdfView.context.resources.openRawResource(R.raw.sample))
            .autoSpacing(false)
            .spacing(25)
            .pageFitPolicy(FitPolicy.BOTH)
            .load()
    },
    modifier = Modifier
        .fillMaxSize()
        .background(Color.Red)
)

Source https://stackoverflow.com/questions/70894665

QUESTION

Adding Text/Annotations into existing PDF file and View/Rendering the output in android

Asked 2020-Dec-20 at 14:08

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 appreciated

UPDATE

========================================================================

Solution 1: Adding annotations

Here is my code snippet for adding icon annotation into existing pdf file.


public static void addWatermark(Context context, String filePath) throws FileNotFoundException, IOException {

        // get file and FileOutputStream
        if (filePath == null || filePath.isEmpty())
            throw new FileNotFoundException();

        File file = new File(filePath);

        if (!file.exists())
            throw new FileNotFoundException();

        try {

            // inout stream from file
            InputStream inputStream = new FileInputStream(file);

            // we create a reader for a certain document
            PdfReader reader = new PdfReader(inputStream);

            // get page file number count
            int pageNumbers = reader.getNumberOfPages();

            // we create a stamper that will copy the document to a new file
            PdfStamper stamp = new PdfStamper(reader, new FileOutputStream(file));

            // adding content to each page
            int i = 0;
            PdfContentByte under;

            // get watermark icon
            Image img = Image.getInstance(PublicFunction.getByteFromDrawable(context, R.drawable.ic_chat));
            img.setAnnotation(new Annotation("tag", "gd871394bh2c3r", 0, 0, 0, 0));
            img.setAbsolutePosition(230, 190);
            img.scaleAbsolute(50, 50);

            while (i < pageNumbers) {
                i++;
                // watermark under the existing page
                under = stamp.getUnderContent(i);
                under.addImage(img);
            }

            // closing PdfStamper will generate the new PDF file
            stamp.close();

        } catch (Exception de) {
            de.printStackTrace();
        }

    }
}

Solution 2: Show new changes

Here is my code snippet for refreshing the view after adding annotation, I have added this into AndroidPdfViewer core classes.

public void refresh(int currPage) {

            currentPage = currPage;

            if (!hasSize) {
                waitingDocumentConfigurator = this;
                return;
            }
            PDFView.this.recycle();
            PDFView.this.callbacks.setOnLoadComplete(onLoadCompleteListener);
            PDFView.this.callbacks.setOnError(onErrorListener);
            PDFView.this.callbacks.setOnDraw(onDrawListener);
            PDFView.this.callbacks.setOnDrawAll(onDrawAllListener);
            PDFView.this.callbacks.setOnPageChange(onPageChangeListener);
            PDFView.this.callbacks.setOnPageScroll(onPageScrollListener);
            PDFView.this.callbacks.setOnRender(onRenderListener);
            PDFView.this.callbacks.setOnTap(onTapListener);
            PDFView.this.callbacks.setOnLongPress(onLongPressListener);
            PDFView.this.callbacks.setOnPageError(onPageErrorListener);
            PDFView.this.callbacks.setLinkHandler(linkHandler);

            if (pageNumbers != null) {
                PDFView.this.load(documentSource, password, pageNumbers);
            } else {
                PDFView.this.load(documentSource, password);
            }
        }

Solution 4: Click on object in pdf

I have create annotations and set it to added image object, AndroidPdfViewer has an event handler, here is the example

@Override
public void handleLinkEvent(LinkTapEvent event) {
        // do your stuff here
}

I will add other new solutions into my question, as update parts.

ANSWER

Answered 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.

For example:

PdfReader reader = new PdfReader("original.pdf");
PdfStamper stamper = new PdfStamper(reader, new FileOutputStream("original-stamped.pdf"));

PdfContentByte cb = stamper.getOverContent(1);
cb.beginText();
cb.setTextMatrix(100, 400);
cb.showText("Text at position 100,400.");
cb.endText();

stamper.close();
reader.close();

In particular take care to use different file names here. After closing the stamper and the reader you can delete the original PDF and replace it with the stamped version.

If it is not desired to have a second file, you can alternatively initialize the PdfStamper with a ByteArrayOutputStream and after closing the stamper and the reader replace the contents of the original file with those of the ByteArrayOutputStream.

Source https://stackoverflow.com/questions/65198940

QUESTION

kotlin androidpdfviewer lib doesn't seem to load

Asked 2020-Jul-29 at 15:00

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 :

implementation 'com.github.barteksc:pdfium-android:1.9.0'
implementation "com.github.barteksc:android-pdf-viewer:3.2.0-beta.1"
implementation "com.github.barteksc:android-pdf-viewer:2.8.2"

The error is found here :

public PdfDocument newDocument(ParcelFileDescriptor fd, String password) throws IOException {
        PdfDocument document = new PdfDocument();
        document.parcelFileDescriptor = fd;
        synchronized (lock) {
            document.mNativeDocPtr = nativeOpenDocument(getNumFd(fd), password);
        }

        return document;
    }

The fonction nativeOpenDocument from the lib doesn't seem to load.

I found some topic on github talking about it : https://github.com/barteksc/AndroidPdfViewer/issues/538 https://github.com/barteksc/PdfiumAndroid/issues/54 https://github.com/mshockwave/PdfiumAndroid/issues/13

But no solution found, as suggested i tried to change the dependency, tried to shut down my computer and my phone, tried to invalide cache and restart, tried on emulator but nothing work.

It would be very nice if someone could help me with that?

ANSWER

Answered 2020-Jul-16 at 13:34

This is how I'm loading pdf url:

fragment_pdf_reader.xml:

<androidx.constraintlayout.widget.ConstraintLayout
//....
<com.github.barteksc.pdfviewer.PDFView
            android:id="@+id/pdfView"
            android:layout_width="match_parent"
            android:layout_height="@dimen/zeroDp"
            android:visibility="visible"
            app:layout_constraintBottom_toTopOf="@+id/tvFeedback"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintTop_toBottomOf="@+id/view" />
//...
</androidx.constraintlayout.widget.ConstraintLayout>

Now inside your fragment get pdf url and make Http request with that pdf url and get ResponseBody pass it to the below method:

private fun downloadFile(responseBody: ResponseBody) {// get responseBody after making Http req . I'm using retrofit 
        binding?.let {
            //it.pdfView.removeAllViews()
            it.pdfView.fromBytes(responseBody.bytes())
                    .defaultPage(pageNumber)
                    .onPageChange(this@PdfReaderFragment)
                    .enableAnnotationRendering(true)
                    .onLoad(this@PdfReaderFragment)
                    .spacing(10) // in dp
                    .onPageError(this@PdfReaderFragment)
                    .onError { onError("File not in PDF format or corrupted") }
                    .load()
        }


    }

Implement these call backs :

OnPageChangeListener
OnLoadCompleteListener
OnPageErrorListener

implementation of above call backs are:

override fun loadComplete(nbPages: Int) {
        binding?.let {
            printBookmarksTree(it.pdfView.tableOfContents, "-")
        }

    }

override fun onPageError(page: Int, t: Throwable?) {
        Log.d("PDF", t?.message)
    }
override fun onPageChanged(page: Int, pageCount: Int) {
        pageNumber = page
        Log.d("PDF", "Page number $pageNumber $pageCount")
        setTitleMessageBackArrow(String.format("%s %s / %s", "your fragment title", page + 1, pageCount))
    }

    private fun printBookmarksTree(tree: List<Bookmark>, sep: String) {
        for (b in tree) {
            Log.e("PDF", String.format("%s %s, p %d", sep, b.title, b.pageIdx))
            if (b.hasChildren()) {
                printBookmarksTree(b.children, "$sep-")
            }
        }
    }

Source https://stackoverflow.com/questions/62935251

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install AndroidPdfViewer

or if you want to use more stable version:. Library is available in jcenter repository, probably it'll be in Maven Central soon.

Support

Version 3.0.0 introduced support for links in PDF documents. By default, DefaultLinkHandler is used and clicking on link that references page in same document causes jump to destination page and clicking on link that targets some URI causes opening it in default application. You can also create custom link handlers, just implement LinkHandler interface and set it using Configurator#linkHandler(LinkHandler) method. Take a look at DefaultLinkHandler source to implement custom behavior.