Android判断文本编码格式
时间: 2023-10-11 16:09:55 浏览: 57
Android可以通过以下方式判断文本编码格式:
1. 使用Java的Charset类进行编码判断,如下所示:
```java
public static String getCharset(String fileName) throws IOException {
BufferedInputStream bin = new BufferedInputStream(new FileInputStream(fileName));
int p = (bin.read() << 8) + bin.read();
String code = null;
switch (p) {
case 0xefbb:
code = "UTF-8";
break;
case 0xfffe:
code = "Unicode";
break;
case 0xfeff:
code = "UTF-16BE";
break;
default:
code = "GBK";
break;
}
return code;
}
```
2. 使用Android自带的Detector类进行编码判断,如下所示:
```java
public static String getCharset(String fileName) throws IOException {
UniversalDetector detector = new UniversalDetector(null);
byte[] buf = new byte[4096];
FileInputStream fis = new FileInputStream(fileName);
int nread;
while ((nread = fis.read(buf)) > 0 && !detector.isDone()) {
detector.handleData(buf, 0, nread);
}
detector.dataEnd();
String encoding = detector.getDetectedCharset();
detector.reset();
if (encoding == null) {
encoding = "GBK";
}
return encoding;
}
```
以上两种方式都可以判断文本文件的编码格式。
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