android 複製文件夾, 複製文件

package uusafe;

import android.util.Log;

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;

/**
 * Created by darren on 17-7-5.
 */

public class debug {

    /**
     * 複製文件夾
     */
    public static boolean copyDirectory(File src, File dest) {
        if (!src.isDirectory()) {
            return false;
        }
        if (!dest.isDirectory() && !dest.mkdirs()) {
            return false;
        }

        File[] files = src.listFiles();
        for (File file : files) {
            File destFile = new File(dest, file.getName());
            if (file.isFile()) {
                if (!copyFile(file, destFile)) {
                    return false;
                }
            } else if (file.isDirectory()) {
                if (!copyDirectory(file, destFile)) {
                    return false;
                }
            }
        }
        return true;
    }

    /**
     * 複製文件
     */
    public static boolean copyFile(File src, File des) {
        if (!src.exists()) {
            Log.e("cppyFile", "file not exist:" + src.getAbsolutePath());
            return false;
        }
        if (!des.getParentFile().isDirectory() && !des.getParentFile().mkdirs()) {
            Log.e("cppyFile", "mkdir failed:" + des.getParent());
            return false;
        }
        BufferedInputStream bis = null;
        BufferedOutputStream bos = null;
        try {
            bis = new BufferedInputStream(new FileInputStream(src));
            bos = new BufferedOutputStream(new FileOutputStream(des));
            byte[] buffer = new byte[4 * 1024];
            int count;
            while ((count = bis.read(buffer, 0, buffer.length)) != -1) {
                if (count > 0) {
                    bos.write(buffer, 0, count);
                }
            }
            bos.flush();
            return true;
        } catch (Exception e) {
            Log.e("copyFile", "exception:", e);
        } finally {
            if (bis != null) {
                try {
                    bis.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            if (bos != null) {
                try {
                    bos.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
        return false;
    }
}