Android how to open a .doc extension file?

Question

Is there any possible way to open a .doc extension file?

Answer 1

Here is the complete way to open .doc file in Android 7.0 or less:

Step-1: First of all, place your pdf file in assets folder like the following screenshot.

Step-2: Now go to build.gradle file and add following lines:

repositories {
maven {
    url "https://s3.amazonaws.com/repo.commonsware.com"
}

}

and then under dependencies add the following line and sync:

compile 'com.commonsware.cwac:provider:0.4.3'

Step-3: Now add a new java file which should extend from FileProvider Like in my case file name is LegacyCompatFileProvider and code inside of it.

import android.database.Cursor;
import android.net.Uri;

import android.support.v4.content.FileProvider;

import com.commonsware.cwac.provider.LegacyCompatCursorWrapper;

public class LegacyCompatFileProvider extends FileProvider {
  @Override
  public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs, String sortOrder) {
    return(new LegacyCompatCursorWrapper(super.query(uri, projection, selection, selectionArgs, sortOrder)));
  }
}

Step-4: Create a folder named "xml" under "res" folder. (If the folder is already there then no need to create). Now add a providers_path.xml file, in xml folder. Here is the screenshot:

Inside file add following lines:

Step-5: Now go to AndroidManifest.xml file and following lines in tag:

Step-6: Now go to the Activity class from where you want to load pdf and add following 1 line and these 2 methods:

private static final String AUTHORITY="REPLACE_IT_WITH_PACKAGE_NAME";

static private void copy(InputStream in, File dst) throws IOException {
        FileOutputStream out=new FileOutputStream(dst);
        byte[] buf=new byte[1024];
        int len;

        while ((len=in.read(buf)) > 0) {
            out.write(buf, 0, len);
        }

        in.close();
        out.close();
    }

    private  void LoadPdfFile(String fileName){

        File f = new File(getFilesDir(), fileName + ".doc");

        if (!f.exists()) {
            AssetManager assets=getAssets();

            try {
                copy(assets.open(fileName + ".doc"), f);
            }
            catch (IOException e) {
                Log.e("FileProvider", "Exception copying from assets", e);
            }
        }

        Intent i=
                new Intent(Intent.ACTION_VIEW,
                        FileProvider.getUriForFile(this, AUTHORITY, f));

        i.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);

        startActivity(i);
        finish();
    }

Now call LoadPdfFile method and pass your file name without .doc like in my case "chapter-0" and it will open doc file in doc reader application.