content: /*
   * Copyright (C) 2016 The Android Open Source Project
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package com.android.setupwizardlib.span;
  
  import android.text.Spannable;
  
  /**
   * Contains helper methods for dealing with text spans, e.g. the ones in {@code android.text.style}.
   */
  public class SpanHelper {
  
    /**
     * Add {@code newSpan} at the same start and end indices as {@code oldSpan} and remove {@code
     * oldSpan} from the {@code spannable}.
     */
    public static void replaceSpan(Spannable spannable, Object oldSpan, Object newSpan) {
      final int spanStart = spannable.getSpanStart(oldSpan);
      final int spanEnd = spannable.getSpanEnd(oldSpan);
      spannable.removeSpan(oldSpan);
      spannable.setSpan(newSpan, spanStart, spanEnd, 0);
    }
  }
  