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      1 /*
      2  * Copyright (C) 2006 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package android.text;
     18 
     19 /**
     20  * When an object of this type is attached to a Spannable, its methods
     21  * will be called to notify it that other markup objects have been
     22  * added, changed, or removed.
     23  */
     24 public interface SpanWatcher extends NoCopySpan {
     25     /**
     26      * This method is called to notify you that the specified object
     27      * has been attached to the specified range of the text.
     28      */
     29     public void onSpanAdded(Spannable text, Object what, int start, int end);
     30     /**
     31      * This method is called to notify you that the specified object
     32      * has been detached from the specified range of the text.
     33      */
     34     public void onSpanRemoved(Spannable text, Object what, int start, int end);
     35     /**
     36      * This method is called to notify you that the specified object
     37      * has been relocated from the range <code>ostart&hellip;oend</code>
     38      * to the new range <code>nstart&hellip;nend</code> of the text.
     39      */
     40     public void onSpanChanged(Spannable text, Object what, int ostart, int oend,
     41                               int nstart, int nend);
     42 }
     43