blob: 709cb9e93e5c76cb9b61847c2dd4dab64d37cdea (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
|
package android.text;
/**
* A slim-down version of standard {@link android.text.TextUtils} to be used in unit tests.
*/
public class TextUtils {
/**
* Returns true if a and b are equal, including if they are both null.
* <p><i>Note: In platform versions 1.1 and earlier, this method only worked well if
* both the arguments were instances of String.</i></p>
* @param a first CharSequence to check
* @param b second CharSequence to check
* @return true if a and b are equal
*/
@SuppressWarnings("unused")
public static boolean equals(CharSequence a, CharSequence b) {
if (a == b) return true;
int length;
if (a != null && b != null && (length = a.length()) == b.length()) {
if (a instanceof String && b instanceof String) {
return a.equals(b);
} else {
for (int i = 0; i < length; i++) {
if (a.charAt(i) != b.charAt(i)) return false;
}
return true;
}
}
return false;
}
/**
* Returns <code>true</code> if the string is <code>null</code> or has zero length.
*
* @param str The string to be examined, can be <code>null</code>.
* @return <code>true</code> if the string is <code>null</code> or has zero length.
*/
public static boolean isEmpty(CharSequence str) {
return str == null || str.length() == 0;
}
}
|
