Java tutorial
package layout; import android.content.Context; import android.content.ContextWrapper; import android.content.Intent; import android.net.Uri; import android.os.Bundle; 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.ProgressBar; import android.widget.RelativeLayout; import com.davemorrissey.labs.subscaleview.ImageSource; import com.davemorrissey.labs.subscaleview.SubsamplingScaleImageView; import com.koushikdutta.async.future.FutureCallback; import com.koushikdutta.ion.Ion; import org.bienvenidoainternet.app.R; import org.bienvenidoainternet.app.ViewerActivity; import org.bienvenidoainternet.app.structure.BoardItemFile; import java.io.File; import java.io.FileOutputStream; import java.io.InputStream; import pl.droidsonroids.gif.GifDrawable; import pl.droidsonroids.gif.GifImageView; /** * BaiApp - Bienvenido a internet Android Application * Copyright (C) 2016 Renard1911(https://github.com/Renard1911) * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ /** * A simple {@link Fragment} subclass. * Activities that contain this fragment must implement the * {@link FragmentImage.OnFragmentInteractionListener} interface * to handle interaction events. * Use the {@link FragmentImage#newInstance} factory method to * create an instance of this fragment. */ public class FragmentImage extends Fragment { private static final String ARG_BOARD_ITEM = "param1"; public BoardItemFile boardItemFile; private OnFragmentInteractionListener mListener; private SubsamplingScaleImageView imageView; private GifImageView gifView; private static final String ARG_FILE_URL = "fileURL"; private ProgressBar downloadBar; public FragmentImage() { // Required empty public constructor } public static FragmentImage newInstance(BoardItemFile boardItemFile) { FragmentImage fragment = new FragmentImage(); Bundle args = new Bundle(); args.putParcelable(ARG_BOARD_ITEM, boardItemFile); // args.putString(ARG_FILE_URL, file); fragment.setArguments(args); Log.v("FragmentImage", fragment.toString() + " new Fragment"); return fragment; } @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); if (getArguments() != null) { // currentThread = getArguments().getParcelable(ARG_BOARD_ITEM); boardItemFile = getArguments().getParcelable(ARG_BOARD_ITEM); } } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { // Inflate the layout for this fragment View view = inflater.inflate(R.layout.fragment_fragment_image, container, false); imageView = (SubsamplingScaleImageView) view.findViewById(R.id.imageView); gifView = (GifImageView) view.findViewById(R.id.gifView); imageView.setVisibility(View.GONE); gifView.setVisibility(View.GONE); RelativeLayout layoutOpenBrowser = (RelativeLayout) view.findViewById(R.id.layoutOpenBrowser); if (boardItemFile.file != null) { if (!boardItemFile.file.endsWith(".webm") && !boardItemFile.file.endsWith(".swf") && !boardItemFile.file.endsWith(".ogg") && !boardItemFile.file.endsWith(".opus")) { layoutOpenBrowser.setVisibility(View.GONE); downloadFile(); } else { layoutOpenBrowser.setVisibility(View.VISIBLE); } } Button btnOpenBrowser = (Button) view.findViewById(R.id.btnLaunchBrowser); btnOpenBrowser.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { Intent in = new Intent(Intent.ACTION_VIEW, Uri.parse(boardItemFile.fileURL)); in.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); v.getContext().startActivity(in); } }); return view; } // TODO: Rename method, update argument and hook method into UI event public void onButtonPressed(Uri uri) { if (mListener != null) { mListener.onFragmentInteraction(uri); } } @Override public void onAttach(Context context) { super.onAttach(context); if (context instanceof OnFragmentInteractionListener) { mListener = (OnFragmentInteractionListener) context; } else { throw new RuntimeException(context.toString() + " must implement OnFragmentInteractionListener"); } } @Override public void onDetach() { super.onDetach(); mListener = null; } public void setDownloadBar(ProgressBar downloadBar) { this.downloadBar = downloadBar; } /** * This interface must be implemented by activities that contain this * fragment to allow an interaction in this fragment to be communicated * to the activity and potentially other fragments contained in that * activity. * <p/> * See the Android Training lesson <a href= * "http://developer.android.com/training/basics/fragments/communicating.html" * >Communicating with Other Fragments</a> for more information. */ public interface OnFragmentInteractionListener { // TODO: Update argument type and name void onFragmentInteraction(Uri uri); } private void downloadFile() { downloadBar = ((ViewerActivity) getActivity()).barDownload; downloadBar.setVisibility(View.VISIBLE); ContextWrapper cw = new ContextWrapper(getContext()); File directory = cw.getDir("src", Context.MODE_PRIVATE); final File filePath = new File(directory, boardItemFile.boardDir + "_" + boardItemFile.file); if (filePath.exists()) { downloadBar.setVisibility(View.GONE); if (boardItemFile.file.endsWith(".gif")) { try { GifDrawable gifFromFile = new GifDrawable(filePath); gifView.setImageDrawable(gifFromFile); gifView.setVisibility(View.VISIBLE); imageView.setVisibility(View.GONE); } catch (Exception e) { e.printStackTrace(); } } else { imageView.setImage(ImageSource.uri(filePath.toURI().getPath())); imageView.setVisibility(View.VISIBLE); gifView.setVisibility(View.GONE); } } Ion.with(getContext()).load(boardItemFile.fileURL).progressBar(downloadBar).asInputStream() .setCallback(new FutureCallback<InputStream>() { @Override public void onCompleted(Exception e, InputStream result) { downloadBar.setVisibility(View.GONE); if (e != null) { e.printStackTrace(); } else { FileOutputStream fout; try { fout = new FileOutputStream(filePath); final byte data[] = new byte[1024]; int count; while ((count = result.read(data, 0, 1024)) != -1) { fout.write(data, 0, count); } } catch (Exception e1) { e1.printStackTrace(); } if (boardItemFile.file.endsWith(".gif")) { try { GifDrawable gifFromFile = new GifDrawable(filePath); gifView.setImageDrawable(gifFromFile); gifView.setVisibility(View.VISIBLE); imageView.setVisibility(View.GONE); } catch (Exception e2) { e2.printStackTrace(); } } else { imageView.setImage(ImageSource.uri(filePath.toURI().getPath())); gifView.setVisibility(View.GONE); imageView.setVisibility(View.VISIBLE); } } } }); } }