Gets the line from the index of the letter in the text from Layout - Android User Interface

Android examples for User Interface:Layout

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Description

Gets the line from the index of the letter in the text from Layout

Demo Code

/*//from   ww w  .j a v a 2s  .com
 * Copyright (C) 2014 Vlad Mihalachi
 *
 * This file is part of Turbo Editor.
 *
 * Turbo Editor 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.
 *
 * Turbo Editor 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/>.
 */
//package com.java2s;
import android.text.Layout;

public class Main {
    /**
     * Gets the line from the index of the letter in the text
     *
     * @param index
     * @param lineCount
     * @param layout
     * @return
     */
    public static int getLineFromIndex(int index, int lineCount,
            Layout layout) {
        int line;
        int currentIndex = 0;

        for (line = 0; line < lineCount; line++) {
            currentIndex += layout.getLineEnd(line)
                    - layout.getLineStart(line);
            if (currentIndex > index) {
                break;
            }
        }

        return line;
    }
}

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