Android Open Source - android-usable-location-privacy Custom Label Formatter

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License

The source code is released under:

Apache License

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Java Source Code

/**
 * This file is part of GraphView./* ww w .j av  a  2  s  . c o  m*/
 *
 * GraphView is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * GraphView 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 GraphView.  If not, see <http://www.gnu.org/licenses/lgpl.html>.
 *
 * Copyright Jonas Gehring
 */

package com.jjoe64.graphview;

/**
 * if you want to show different labels,
 * you can use this label formatter.
 * As Input you get the raw value (x or y) and
 * you return a String that will be displayed.
 * {@code
 *     graphView.setCustomLabelFormatter(new CustomLabelFormatter() {
      public String formatLabel(double value, boolean isValueX) {
        if (isValueX) {
          if (value < 5) {
            return "small";
          } else if (value < 15) {
            return "middle";
          } else {
            return "big";
          }
        }
        return null; // let graphview generate Y-axis label for us
      }
    });
 * }
 */
public interface CustomLabelFormatter {

  /**
   * will be called when the labels were generated
   * @param value the raw input value (x or y)
   * @param isValueX true if value is a x-value, false if otherwise
   * @return the string that will be displayed. return null if you want graphview to generate the label for you.
   */
  String formatLabel(double value, boolean isValueX);

}

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