Android Open Source - SoundRecorder File Viewer Fragment

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Back to project page SoundRecorder.

License

The source code is released under:

MIT License

If you think the Android project SoundRecorder listed in this page is inappropriate, such as containing malicious code/tools or violating the copyright, please email info at java2s dot com, thanks.

Java Source Code

package com.danielkim.soundrecorder.fragments;
//from  w  w  w  .j  av a 2s .  c  o  m
import android.os.Bundle;
import android.os.FileObserver;
import android.support.v4.app.Fragment;
import android.support.v7.widget.DefaultItemAnimator;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

import com.danielkim.soundrecorder.R;
import com.danielkim.soundrecorder.adapters.FileViewerAdapter;

/**
 * Created by Daniel on 12/23/2014.
 */
public class FileViewerFragment extends Fragment{
    private static final String ARG_POSITION = "position";
    private static final String LOG_TAG = "FileViewerFragment";

    private int position;
    private FileViewerAdapter mFileViewerAdapter;

    public static FileViewerFragment newInstance(int position) {
        FileViewerFragment f = new FileViewerFragment();
        Bundle b = new Bundle();
        b.putInt(ARG_POSITION, position);
        f.setArguments(b);

        return f;
    }

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        position = getArguments().getInt(ARG_POSITION);
        observer.startWatching();
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View v = inflater.inflate(R.layout.fragment_file_viewer, container, false);

        RecyclerView mRecyclerView = (RecyclerView) v.findViewById(R.id.recyclerView);
        mRecyclerView.setHasFixedSize(true);
        LinearLayoutManager llm = new LinearLayoutManager(getActivity());
        llm.setOrientation(LinearLayoutManager.VERTICAL);

        //newest to oldest order (database stores from oldest to newest)
        llm.setReverseLayout(true);
        llm.setStackFromEnd(true);

        mRecyclerView.setLayoutManager(llm);
        mRecyclerView.setItemAnimator(new DefaultItemAnimator());

        mFileViewerAdapter = new FileViewerAdapter(getActivity(), llm);
        mRecyclerView.setAdapter(mFileViewerAdapter);

        return v;
    }

    FileObserver observer =
            new FileObserver(android.os.Environment.getExternalStorageDirectory().toString()
                    + "/SoundRecorder") {
                // set up a file observer to watch this directory on sd card
                @Override
                public void onEvent(int event, String file) {
                    if(event == FileObserver.DELETE){
                        // user deletes a recording file out of the app

                        String filePath = android.os.Environment.getExternalStorageDirectory().toString()
                                + "/SoundRecorder" + file + "]";

                        Log.d(LOG_TAG, "File deleted ["
                                + android.os.Environment.getExternalStorageDirectory().toString()
                                + "/SoundRecorder" + file + "]");

                        // remove file from database and recyclerview
                        mFileViewerAdapter.removeOutOfApp(filePath);
                    }
                }
            };
}

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