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  * This is the interface for text to which markup objects can be
21  * attached and detached.  Not all Spannable classes have mutable text;
22  * see {@link Editable} for that.
23  */
24 public interface Spannable
25 extends Spanned
26 {
27     /**
28      * Attach the specified markup object to the range <code>start&hellip;end</code>
29      * of the text, or move the object to that range if it was already
30      * attached elsewhere.  See {@link Spanned} for an explanation of
31      * what the flags mean.  The object can be one that has meaning only
32      * within your application, or it can be one that the text system will
33      * use to affect text display or behavior.  Some noteworthy ones are
34      * the subclasses of {@link android.text.style.CharacterStyle} and
35      * {@link android.text.style.ParagraphStyle}, and
36      * {@link android.text.TextWatcher} and
37      * {@link android.text.SpanWatcher}.
38      */
setSpan(Object what, int start, int end, int flags)39     public void setSpan(Object what, int start, int end, int flags);
40 
41     /**
42      * Remove the specified object from the range of text to which it
43      * was attached, if any.  It is OK to remove an object that was never
44      * attached in the first place.
45      */
removeSpan(Object what)46     public void removeSpan(Object what);
47 
48     /**
49      * Factory used by TextView to create new {@link Spannable Spannables}. You can subclass
50      * it to provide something other than {@link SpannableString}.
51      *
52      * @see android.widget.TextView#setSpannableFactory(Factory)
53      */
54     public static class Factory {
55         private static Spannable.Factory sInstance = new Spannable.Factory();
56 
57         /**
58          * Returns the standard Spannable Factory.
59          */
getInstance()60         public static Spannable.Factory getInstance() {
61             return sInstance;
62         }
63 
64         /**
65          * Returns a new SpannableString from the specified CharSequence.
66          * You can override this to provide a different kind of Spannable.
67          */
newSpannable(CharSequence source)68         public Spannable newSpannable(CharSequence source) {
69             return new SpannableString(source);
70         }
71     }
72 }
73