Ouvrir PDF depuis une URL
Bonjour à tous,
Pour un projet d'application que j'ai je veux ouvrir un PDF dans l'application depuis une URL. J'ai pour l'instant uniquement réussi à ouvrir le PDF en le mettant dans les assets.
Voici la classe avec laquelle j'ouvre le pdf :
Code:
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| import android.app.Activity;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.pdf.PdfRenderer;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.os.ParcelFileDescriptor;
import android.support.annotation.RequiresApi;
import android.support.v4.app.Fragment;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.ImageView;
import java.io.IOException;
public class MenuSelfFragment extends Fragment {
private ParcelFileDescriptor fileDescriptor;
private PdfRenderer pdfRenderer;
private PdfRenderer.Page currentPage;
private ImageView image;
public MenuSelfFragment() {
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
return inflater.inflate(R.layout.fragment_menu_self, container, false);
}
@RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
@Override
public void onViewCreated(View view, Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
// Retain view references.
image = (ImageView) view.findViewById(R.id.image);
int index = 0;
// If there is a savedInstanceState (screen orientations, etc.), we restore the page index.
if (null != savedInstanceState) {
index = savedInstanceState.getInt("current_page", 0);
}
showPage(index);
}
@RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
@Override
public void onAttach(Activity activity) {
super.onAttach(activity);
try {
openRenderer(activity);
} catch (IOException e) {
e.printStackTrace();
Log.i("Fragment", "Error occurred!");
Log.e("Fragment", e.getMessage());
activity.finish();
}
}
@RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
@Override
public void onDestroy() {
try {
closeRenderer();
} catch (IOException e) {
e.printStackTrace();
}
super.onDestroy();
}
@RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
@Override
public void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
if (null != currentPage) {
outState.putInt("current_page", currentPage.getIndex());
}
}
/**
* Create a PDF renderer
* @param activity
* @throws IOException
*/
@RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
private void openRenderer(Activity activity) throws IOException {
// Reading a PDF file from the assets directory.
fileDescriptor = activity.getAssets().openFd("menu.pdf").getParcelFileDescriptor();
// This is the PdfRenderer we use to render the PDF.
pdfRenderer = new PdfRenderer(fileDescriptor);
}
/**
* Closes PdfRenderer and related resources.
*/
@RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
private void closeRenderer() throws IOException {
if (null != currentPage) {
currentPage.close();
}
pdfRenderer.close();
fileDescriptor.close();
}
/**
* Shows the specified page of PDF file to screen
* @param index The page index.
*/
@RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
private void showPage(int index) {
if (pdfRenderer.getPageCount() <= index) {
return;
}
// Make sure to close the current page before opening another one.
if (null != currentPage) {
currentPage.close();
}
//open a specific page in PDF file
currentPage = pdfRenderer.openPage(index);
// Important: the destination bitmap must be ARGB (not RGB).
Bitmap bitmap = Bitmap.createBitmap(currentPage.getWidth(), currentPage.getHeight(),
Bitmap.Config.ARGB_8888);
// Here, we render the page onto the Bitmap.
currentPage.render(bitmap, null, null, PdfRenderer.Page.RENDER_MODE_FOR_DISPLAY);
// showing bitmap to an imageview
image.setImageBitmap(bitmap);
updateUIData();
}
/**
* Updates the state of 2 control buttons in response to the current page index.
*/
@RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
private void updateUIData() {
int index = currentPage.getIndex();
int pageCount = pdfRenderer.getPageCount();
getActivity().setTitle(getString(R.string.app_name, index + 1, pageCount));
}
private View.OnClickListener onActionListener(final int i) {
return new View.OnClickListener() {
@RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
@Override
public void onClick(View v) {
if (i < 0) {//go to previous page
showPage(currentPage.getIndex() - 1);
} else {
showPage(currentPage.getIndex() + 1);
}
}
};
}
} |
Je ne vois absolument pas et surtout je ne trouve pas sur le net comment je pourrais faire pour ouvrir le pdf depuis une adresse internet. Si quelqu'un à une solution je suis preneur !
Merci d'avance, cordialement, un novice en la matière.
