get File Name Without Extension - Android java.io

Android examples for java.io:File Name

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  2. Android
  3. java.io
  4. File Name

Description

get File Name Without Extension

Demo Code


public class Main{
    public final static String FILE_EXTENSION_SEPARATOR = ".";

    /**//from   ww  w .j av a 2  s  . c  om
     * get file name from path, not include suffix
     * <p/>
     * <pre>
     *      getFileNameWithoutExtension(null)               =   null
     *      getFileNameWithoutExtension("")                 =   ""
     *      getFileNameWithoutExtension("   ")              =   "   "
     *      getFileNameWithoutExtension("abc")              =   "abc"
     *      getFileNameWithoutExtension("a.mp3")            =   "a"
     *      getFileNameWithoutExtension("a.b.rmvb")         =   "a.b"
     *      getFileNameWithoutExtension("c:\\")              =   ""
     *      getFileNameWithoutExtension("c:\\a")             =   "a"
     *      getFileNameWithoutExtension("c:\\a.b")           =   "a"
     *      getFileNameWithoutExtension("c:a.txt\\a")        =   "a"
     *      getFileNameWithoutExtension("/home/admin")      =   "admin"
     *      getFileNameWithoutExtension("/home/admin/a.txt/b.mp3")  =   "b"
     * </pre>
     *
     * @return file name from path, not include suffix
     * @see
     */
    public static String getFileNameWithoutExtension(String filePath) {
        if (TextUtils.isEmpty(filePath)) {
            return filePath;
        }

        int extenPosi = filePath.lastIndexOf(FILE_EXTENSION_SEPARATOR);
        int filePosi = filePath.lastIndexOf(File.separator);
        if (filePosi == -1) {
            return (extenPosi == -1 ? filePath : filePath.substring(0,
                    extenPosi));
        }
        if (extenPosi == -1) {
            return filePath.substring(filePosi + 1);
        }
        return (filePosi < extenPosi ? filePath.substring(filePosi + 1,
                extenPosi) : filePath.substring(filePosi + 1));
    }

}

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