Java tutorial
/* * Catroid: An on-device visual programming system for Android devices * Copyright (C) 2010-2016 The Catrobat Team * (<http://developer.catrobat.org/credits>) * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU Affero General Public License as * published by the Free Software Foundation, either version 3 of the * License, or (at your option) any later version. * * An additional term exception under section 7 of the GNU Affero * General Public License, version 3, is available at * http://developer.catrobat.org/license_additional_term * * 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 Affero General Public License for more details. * * You should have received a copy of the GNU Affero General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ package org.catrobat.catroid.pocketmusic.ui; import android.content.Context; import android.support.v4.content.ContextCompat; import android.widget.TableRow; import org.catrobat.catroid.R; import java.util.ArrayList; import java.util.List; public class TrackRowView extends TableRow { public static final int QUARTER_COUNT = 4; private List<NoteView> noteViews = new ArrayList<>(QUARTER_COUNT); private boolean isBlackRow; public TrackRowView(Context context) { this(context, false); } public TrackRowView(Context context, boolean isBlackRow) { super(context); this.setBlackRow(isBlackRow); initializeRow(); setWeightSum(QUARTER_COUNT); } private void initializeRow() { LayoutParams params = new LayoutParams(0, LayoutParams.MATCH_PARENT, 1.0f); params.leftMargin = params.topMargin = params.rightMargin = params.bottomMargin = 2; int noteColor; if (isBlackRow) { noteColor = ContextCompat.getColor(getContext(), R.color.spritelist_details_text_color); } else { noteColor = ContextCompat.getColor(getContext(), R.color.white); } for (int i = 0; i < QUARTER_COUNT; i++) { noteViews.add(new NoteView(getContext(), noteColor)); addView(noteViews.get(i), params); } } public List<NoteView> getNoteViews() { return noteViews; } public int getTactCount() { return QUARTER_COUNT; } public boolean isBlackRow() { return isBlackRow; } public void setBlackRow(boolean blackRow) { isBlackRow = blackRow; } }