How to open a PDF file, which is in the assets of my APP, in a PDF reader already installed on the mobile?

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How to open a PDF file, which is in the assets of my APP, in a PDF reader already installed on the mobile?

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#1 by (-1 votes)

2

I have an APP that needs to open some PDF files (laws) that should come along with the application.

The idea is to call Intent to open these PDF files by the PDF reader already installed on the phone. The files are in the assets. How do I open the PDF with the path of the file that is in the assets?

Here on the site was the following link, as an example:
link

Through the above example I did the following in MainActivity.java :

package com.vdtecnologia.br.pdfassets;

import android.content.Intent;
import android.content.res.AssetManager;
import android.net.Uri;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;

import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;

public class MainActivity extends AppCompatActivity {



    Button btn1;
    private String TAG;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        btn1 = (Button) findViewById(R.id.button);

        btn1.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {


                openPDFFiles("AnexoI.pdf");


            }
        });



    }



    private void openPDFFiles(String AnexoI) //fileName is the pdf file name which is keep in assets folder. ex file.pdf
    {
        AssetManager assetManager = getAssets();

        InputStream in = null;
        OutputStream out = null;
        File file = new File(getFilesDir(), "");
        try {
            in = assetManager.open(AnexoI);
            out = openFileOutput(file.getName(), MODE_PRIVATE);

            copyFile(in, out);
            in.close();
            in = null;
            out.flush();
            out.close();
            out = null;
        } catch (Exception e) {
            Log.e(TAG, e.getMessage());
        }
        try {
            Intent intent = new Intent(Intent.ACTION_VIEW);
            intent.setDataAndType(Uri.parse("file://" + getFilesDir() + "/"+AnexoI), "application/pdf");
            startActivity(intent);
        }catch (RuntimeException ex){
            Toast.makeText(MainActivity.this, "Não foi encontrado nenhum leitor de PDF no seu dispositivo", Toast.LENGTH_SHORT).show();
        }

    }

    private void copyFile(InputStream in, OutputStream out) throws IOException

    {
        byte[] buffer = new byte[1024];
        int read;
        while ((read = in.read(buffer)) != -1)

        {
            out.write(buffer, 0, read);
        }
    }
}

But when you click the button it triggers the PDF reader and then returns to the APP with the following message:

The file could not be accessed. Please check the location or network and try again.

java android

asked by anonymous 26.06.2018 / 19:27

1 answer

Query in MySQL query Simulate Click with webview in a href

score -1 · Answer 1

Change the level of your assets PDF to raw and try this.

protected void openPDF() {

        if(Build.VERSION.SDK_INT>=24){
            try{
                Method m = StrictMode.class.getMethod("disableDeathOnFileUriExposure");
                m.invoke(null);
            }catch(Exception e){
                e.printStackTrace();
            }
        }

        File dest = Environment.getExternalStorageDirectory();
        InputStream in = getResources().openRawResource("CAMINHO DO SEU ASSETS(RAW)");

        try
        {
            OutputStream out = new FileOutputStream(new File(dest, "NOME_DO_ARQUIVO.pdf"));
            byte[] buf = new byte[1024];
            int len;
            while ( (len = in.read(buf, 0, buf.length)) != -1)
            {
                out.write(buf, 0, len);
            }
            in.close();
            out.close();
        }
        catch (Exception e) {}

        Intent share = new Intent();
        share.setAction(Intent.ACTION_VIEW);
        share.setType("application/pdf");
        File path = new File(Environment.getExternalStorageDirectory().getAbsolutePath(), "NOME_DO_AQUIVO.pdf");
        Uri uri = Uri.fromFile(path);
        share.putExtra(Intent.EXTRA_STREAM, uri);
        startActivity(share);
    }