Android 复制文件

迷南。 2022-05-23 02:58 177阅读 0赞

public static boolean copyFile(final String srcFilePath,
                                       final String destFilePath) {
            return copyOrMoveFile(getFileByPath(srcFilePath), getFileByPath(destFilePath));
        }
    
    
        private static boolean copyOrMoveFile(final File srcFile, final File destFile) {
            if (srcFile == null || destFile == null) return false;
            // srcFile equals destFile then return false
            if (srcFile.equals(destFile)) return false;
            // srcFile doesn't exist or isn't a file then return false
            if (!srcFile.exists() || !srcFile.isFile()) return false;
            if (destFile.exists()) {
                // require delete the old file
                if (!destFile.delete()) {// unsuccessfully delete then return false
                    return false;
                }
            }
            if (!createOrExistsDir(destFile.getParentFile())) return false;
            try {
                return writeFileFromIS(destFile, new FileInputStream(srcFile), false);
            } catch (Exception e) {
                logger.e(e);
                return false;
            }
        }
    
        public static boolean writeFileFromIS(final File file,
                                              final InputStream is,
                                              final boolean append) {
            if (!createOrExistsFile(file) || is == null) return false;
            OutputStream os = null;
            try {
                os = new BufferedOutputStream(new FileOutputStream(file, append));
                byte data[] = new byte[8192];
                int len;
                while ((len = is.read(data, 0, 8192)) != -1) {
                    os.write(data, 0, len);
                }
                return true;
            } catch (IOException e) {
                e.printStackTrace();
                return false;
            } finally {
                try {
                    is.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
                try {
                    if (os != null) {
                        os.close();
                    }
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }