how to view pdf inside fragment

[shawn peter]

i need to show several pdf files when i swipe in my viewpager application

package com.programmingmobile.pageviewer;

import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;

public class MyFragment extends Fragment {
	public static final String EXTRA_MESSAGE = "EXTRA_MESSAGE";
	
	public static final MyFragment newInstance(String message)
	{
		MyFragment f = new MyFragment();
		Bundle bdl = new Bundle(1);
	    bdl.putString(EXTRA_MESSAGE, message);
	    f.setArguments(bdl);
	    return f;
	}
	
	@Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, 
        Bundle savedInstanceState) {
		String message = getArguments().getString(EXTRA_MESSAGE);
		View v = inflater.inflate(R.layout.myfragment_layout, container, false);
		TextView messageTextView = (TextView)v.findViewById(R.id.textView);
		messageTextView.setText(message);
		
        return v;
    }
	
}

this is my main activity

package com.programmingmobile.pageviewer;

import java.util.ArrayList;
import java.util.List;

import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.view.ViewPager;

public class PageViewActivity extends FragmentActivity {
	MyPageAdapter pageAdapter;
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_page_view);
        
        List<Fragment> fragments = getFragments();
        
        pageAdapter = new MyPageAdapter(getSupportFragmentManager(), fragments);
        
        ViewPager pager = (ViewPager)findViewById(R.id.viewpager);
        pager.setAdapter(pageAdapter);
        
    }
    
    private List<Fragment> getFragments(){
    	List<Fragment> fList = new ArrayList<Fragment>();
    	
    	fList.add(MyFragment.newInstance("Fragment 1"));
    	fList.add(MyFragment.newInstance("Fragment 2"));
    	fList.add(MyFragment.newInstance("Fragment 3"));
    	
    	return fList;
    }

    private class MyPageAdapter extends FragmentPagerAdapter {
    	private List<Fragment> fragments;

        public MyPageAdapter(FragmentManager fm, List<Fragment> fragments) {
            super(fm);
            this.fragments = fragments;
        }
        @Override
        public Fragment getItem(int position) {
            return this.fragments.get(position);
        }
     
        @Override
        public int getCount() {
            return this.fragments.size();
        }
    }
}

its working fine.how to show several pdf files when i swipe the screen?

[Ulf Dittmer]

By having the fragment implement a View that can display PDFs instead of just having a TextView.

[shawn peter]

below is my fragment class which calls the pdf render app.But it shows the pdf above the current fragment.I need to show the pdf withing the fragment .how to archive this ?

package com.programmingmobile.pageviewer;

import java.io.File;

import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;

public class MyFragment extends Fragment {
	public static final String EXTRA_MESSAGE = "EXTRA_MESSAGE";
	
	public static final MyFragment newInstance(String message)
	{
		MyFragment f = new MyFragment();
		Bundle bdl = new Bundle(1);
	    bdl.putString(EXTRA_MESSAGE, message);
	    f.setArguments(bdl);
	    return f;
	}
	
	@Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, 
        Bundle savedInstanceState) {
		String message = getArguments().getString(EXTRA_MESSAGE);
		View v = inflater.inflate(R.layout.myfragment_layout, container, false);
		TextView messageTextView = (TextView)v.findViewById(R.id.textView);
		messageTextView.setText(message);
		//showPdf();
		
		
		Intent intent = new Intent(Intent.ACTION_MAIN);
		intent.setClassName("com.epapyrus.plugpdf.sample", "com.epapyrus.plugpdf.sample.SimpleReaderActivity");
		startActivity(intent);
		
		
        return v;
    }
	
	public void showPdf() {
		try {
			
			File file = new File(Environment.getExternalStorageDirectory() + "/pdf/1.pdf");
			// File file = new
			// File(Environment.getExternalStorageDirectory()+"/pdf/PDFOpenParameters.pdf");

			Intent intent = new Intent();
			intent.setAction(Intent.ACTION_VIEW);
			Uri uri = Uri.fromFile(file);
			intent.setDataAndType(uri, "application/pdf");
			//startActivity(intent);

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

[Ulf Dittmer]

I don't understand what starting an intent/activity to view a PDF in another app has to do with fragments showing PDFs in your own app. Please clarify.

Obviously you need a View that can display PDFs, which is something you have asked about before. Have you found such a View? If not, this isn't going to work.

[shawn peter]

I have separate app which display the pdf files.So i calling that app to view the pdf files.It view the pdf files ,but it is not in the fagment.

[Ulf Dittmer]

If the display happens in a separate app then what is the purpose of the fragments in your app (which will not be displaying anything)? Either the View is part of your app, or it's part of some other app - not both.

[shawn peter]

earlier i viewed pdf using pdfviewer.jar.below is the code for that

 try {
		      final Intent intent = new Intent(First.this, Second.class);
		      intent.putExtra(PdfViewerActivity.EXTRA_PDFFILENAME, "/mnt/sdcard/1849695342Z07102013_Appcelerator.pdf");
		      startActivity(intent);
		     } catch (Exception e) {
		      e.printStackTrace();
		     }

now i need to call above code in my fragment.but its unable to call activity from fragment.

[Ulf Dittmer]

What does "call" mean? How is "it" unable to do that? What is "it"? You should constantly remind yourself that we do not know what happens in your code, nor, actually, what you are now attempting to do.

If you're still somehow under the impression that you can get some other app to display something as part of your app, then I have already pointed out that that is simply not possible. Any further attempts in this direction are a waste of time.

If you want to adapt your code that uses an intent to start another app to somehow work differently, then you need to tell us in detail how you want it to work differently.

[shawn peter]

this is my app to view pdf file uusing pdfviewerr.jar file

package com.android.pdf;

import java.io.File;
import java.io.FilenameFilter;

import net.sf.andpdf.pdfviewer.PdfViewerActivity;
import android.support.v7.app.ActionBarActivity;
import android.app.ListActivity;
import android.content.Intent;
import android.os.Bundle;
import android.os.Environment;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.ListView;

public class First extends ListActivity {
    
    String[] pdflist;
    File[] imagelist;
    @Override
    public void onCreate(Bundle savedInstanceState) {
     super.onCreate(savedInstanceState);
     //setContentView(R.layout.main);
   
     File images = Environment.getExternalStorageDirectory();
     imagelist = images.listFiles(new FilenameFilter() {
      public boolean accept(File dir, String name) {
       return ((name.endsWith(".pdf")));
      }
     });
     pdflist = new String[imagelist.length];
     for (int i = 0; i < imagelist.length; i++) {
      pdflist[i] = imagelist[i].getName();
     }
     this.setListAdapter(new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, pdflist));
    }
   
    protected void onListItemClick(ListView l, View v, int position, long id) {
     super.onListItemClick(l, v, position, id);
     String path = imagelist[(int) id].getAbsolutePath();
     openPdfIntent(path);
    }
   
    private void openPdfIntent(String path) {
     try {
      final Intent intent = new Intent(First.this, Second.class);
      intent.putExtra(PdfViewerActivity.EXTRA_PDFFILENAME, path);
      startActivity(intent);
     } catch (Exception e) {
      e.printStackTrace();
     }
    }
}

package com.android.pdf;

import net.sf.andpdf.pdfviewer.PdfViewerActivity;
import android.app.Activity;
import android.os.Bundle;

public class Second extends PdfViewerActivity {

	@Override
	public void onCreate(Bundle savedInstanceState) {
		// TODO Auto-generated method stub
		super.onCreate(savedInstanceState);
	}

	public int getPreviousPageImageResource() {
		return R.drawable.left_arrow;
	}

	public int getNextPageImageResource() {
		return R.drawable.right_arrow;
	}

	public int getZoomInImageResource() {
		return R.drawable.zoom_in;
	}

	public int getZoomOutImageResource() {
		return R.drawable.zoom_out;
	}

	public int getPdfPasswordLayoutResource() {
		return R.layout.pdf_file_password;
	}

	public int getPdfPageNumberResource() {
		return R.layout.dialog_pagenumber;
	}

	public int getPdfPasswordEditField() {
		return R.id.etPassword;
	}

	public int getPdfPasswordOkButton() {
		return R.id.btOK;
	}

	public int getPdfPasswordExitButton() {
		return R.id.btExit;
	}

	public int getPdfPageNumberEditField() {
		return R.id.pagenum_edit;
	}
}

This app works fine app.Now i need to show pdf on my fragments.My new app has 3 fragments.i need to call separate pdf file on each fragment.below is my fragment

package com.programmingmobile.pageviewer;

import java.util.ArrayList;
import java.util.List;

import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.view.ViewPager;

public class PageViewActivity extends FragmentActivity {
	MyPageAdapter pageAdapter;
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_page_view);
        
        List<Fragment> fragments = getFragments();
        
        pageAdapter = new MyPageAdapter(getSupportFragmentManager(), fragments);
        
        ViewPager pager = (ViewPager)findViewById(R.id.viewpager);
        pager.setAdapter(pageAdapter);
        
    }
    
    private List<Fragment> getFragments(){
    	List<Fragment> fList = new ArrayList<Fragment>();
    	
    	fList.add(MyFragment.newInstance("Fragment 1"));
    	fList.add(MyFragment2.newInstance("Fragment 2"));
    	fList.add(MyFragment3.newInstance("Fragment 3"));
    	
    	return fList;
    }

    private class MyPageAdapter extends FragmentPagerAdapter {
    	private List<Fragment> fragments;

        public MyPageAdapter(FragmentManager fm, List<Fragment> fragments) {
            super(fm);
            this.fragments = fragments;
        }
        @Override
        public Fragment getItem(int position) {
            return this.fragments.get(position);
        }
     
        @Override
        public int getCount() {
            return this.fragments.size();
        }
    }
}

package com.programmingmobile.pageviewer;

import java.io.File;

import android.content.Intent;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;

public class MyFragment extends Fragment {
	public static final String EXTRA_MESSAGE = "EXTRA_MESSAGE";
	
	public static final MyFragment newInstance(String message)
	{
		MyFragment f = new MyFragment();
		Bundle bdl = new Bundle(1);
	    bdl.putString(EXTRA_MESSAGE, message);
	    f.setArguments(bdl);
	    return f;
	}
	
	@Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, 
        Bundle savedInstanceState) {
		String message = getArguments().getString(EXTRA_MESSAGE);
		View v = inflater.inflate(R.layout.myfragment_layout, container, false);
		TextView messageTextView = (TextView)v.findViewById(R.id.textView);
		messageTextView.setText(message);
		//showPdf();
		
		
		Intent intent = new Intent(Intent.ACTION_MAIN);
		intent.setClassName("com.epapyrus.plugpdf.sample", "com.epapyrus.plugpdf.sample.SimpleReaderActivity");
		//startActivity(intent);
		
		
        return v;
    }
	
	public void showPdf() {
		try {
			
			File file = new File(Environment.getExternalStorageDirectory() + "/pdf/1.pdf");
			// File file = new
			// File(Environment.getExternalStorageDirectory()+"/pdf/PDFOpenParameters.pdf");

			Intent intent = new Intent();
			intent.setAction(Intent.ACTION_VIEW);
			Uri uri = Uri.fromFile(file);
			intent.setDataAndType(uri, "application/pdf");
			//startActivity(intent);

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

.....
i didn't copy other two fragments.those are same as above.only name changes

I need to know how to view pdf files on fragment?

[Ulf Dittmer]

There isn't anything else I can contribute but saying once more (for the last time): you need a View that can display PDFs. If you have that, it makes sense to proceed, but otherwise it's futile.

"PdfViewerActivity" sounds promising in that regard. I suggest you dig into the documentation and source code of that library to see what it does to display PDFs. Maybe you're able to extract code for a PDF View from it. Keep in mind that code is licensed under the LGPL, which has implications on how you need to license your app if you decide to distribute it.