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 /**
21  * This is the class for text whose content and markup are immutable.
22  * For mutable markup, see {@link SpannableString}; for mutable text,
23  * see {@link SpannableStringBuilder}.
24  */
25 public final class SpannedString
26 extends SpannableStringInternal
27 implements CharSequence, GetChars, Spanned
28 {
SpannedString(CharSequence source)29     public SpannedString(CharSequence source) {
30         super(source, 0, source.length());
31     }
32 
SpannedString(CharSequence source, int start, int end)33     private SpannedString(CharSequence source, int start, int end) {
34         super(source, start, end);
35     }
36 
subSequence(int start, int end)37     public CharSequence subSequence(int start, int end) {
38         return new SpannedString(this, start, end);
39     }
40 
valueOf(CharSequence source)41     public static SpannedString valueOf(CharSequence source) {
42         if (source instanceof SpannedString) {
43             return (SpannedString) source;
44         } else {
45             return new SpannedString(source);
46         }
47     }
48 }
49