Java tutorial
/***************************************************************************** * MRLPanelFragment.java ***************************************************************************** * Copyright 2014-2015 VLC authors and VideoLAN * * 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 2 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, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA. *****************************************************************************/ package org.videolan.vlc.gui; import android.os.Bundle; import android.support.v4.app.Fragment; import android.support.v7.app.ActionBarActivity; import android.support.v7.widget.LinearLayoutManager; import android.support.v7.widget.RecyclerView; import android.text.TextUtils; import android.view.KeyEvent; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.view.inputmethod.EditorInfo; import android.widget.EditText; import android.widget.TextView; import org.videolan.vlc.MediaDatabase; import org.videolan.vlc.R; import org.videolan.vlc.util.Util; import java.util.ArrayList; public class MRLPanelFragment extends Fragment implements View.OnKeyListener, TextView.OnEditorActionListener { private static final String TAG = "VLC/MrlPanelFragment"; private RecyclerView mRecyclerView; private MRLAdapter mAdapter; private RecyclerView.LayoutManager mLayoutManager; ArrayList<String> mHistory; EditText mEditText; public MRLPanelFragment() { }; public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); mHistory = MediaDatabase.getInstance().getMrlhistory(); } public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { ((ActionBarActivity) getActivity()).getSupportActionBar().setTitle(R.string.open_mrl_dialog_title); View v = inflater.inflate(R.layout.mrl_panel, container, false); mEditText = (EditText) v.findViewById(R.id.mrl_edit); mEditText.setOnKeyListener(this); mEditText.setOnEditorActionListener(this); mRecyclerView = (RecyclerView) v.findViewById(R.id.mrl_list); mLayoutManager = new LinearLayoutManager(getActivity()); mRecyclerView.setLayoutManager(mLayoutManager); mRecyclerView .addItemDecoration(new DividerItemDecoration(getActivity(), DividerItemDecoration.VERTICAL_LIST)); mAdapter = new MRLAdapter(mHistory); mRecyclerView.setAdapter(mAdapter); return v; } public void onStart() { super.onStart(); getActivity().supportInvalidateOptionsMenu(); } private void updateHistory() { mHistory = MediaDatabase.getInstance().getMrlhistory(); mAdapter.setList(mHistory); } @Override public boolean onKey(View v, int keyCode, KeyEvent event) { if (keyCode == EditorInfo.IME_ACTION_DONE || keyCode == EditorInfo.IME_ACTION_GO || event.getAction() == KeyEvent.ACTION_DOWN && event.getKeyCode() == KeyEvent.KEYCODE_ENTER) { return processUri(); } return false; } private boolean processUri() { if (!TextUtils.isEmpty(mEditText.getText().toString())) { Util.openStream(getActivity(), mEditText.getText().toString().trim()); MediaDatabase.getInstance().addMrlhistoryItem(mEditText.getText().toString().trim()); updateHistory(); mEditText.getText().clear(); return true; } return false; } public void clearHistory() { MediaDatabase.getInstance().clearMrlHistory(); updateHistory(); } @Override public boolean onEditorAction(TextView v, int actionId, KeyEvent event) { return false; } }