Android: copying files from one directory to another

Question

I am working on copying one file (the temp audio file) from source folder to the destination folder as TT_1A using the following code with the use of apache commons library.

Code:

button1_save.setOnClickListener(new OnClickListener() 
    {
        public void onClick(View v) 
        {
            String sourcePath = Environment.getExternalStorageDirectory().getAbsolutePath() + "/TT/tt_temp.3gp";
            File source = new File(sourcePath);

            String descPath = Environment.getExternalStorageDirectory().getAbsolutePath() + "/TT/tt_1A.3gp";
            File desc = new File(descPath);
            try 
            {
                FileUtils.copyDirectory(source, desc);
            } 
            catch (IOException e) 
            {
                e.printStackTrace();
            }
        }
    });

Apache Commons:

http://commons.apache.org/proper/commons-io/download_io.cgi

Question:

I have used the FileUtils function so as to copy the temp file and paste to the desc folder as TT_1A. Yet logcat reports error with the following details:

10-17 00:41:04.260: E/AndroidRuntime(27450): FATAL EXCEPTION: main
10-17 00:41:04.260: E/AndroidRuntime(27450): java.lang.NoClassDefFoundError: org.apache.commons.io.FileUtils
10-17 00:41:04.260: E/AndroidRuntime(27450):    at com.abc.abc.TT_details_canton$14.onClick(TT_details_canton.java:575)
10-17 00:41:04.260: E/AndroidRuntime(27450):    at android.view.View.performClick(View.java:4223)
10-17 00:41:04.260: E/AndroidRuntime(27450):    at android.view.View$PerformClick.run(View.java:17275)
10-17 00:41:04.260: E/AndroidRuntime(27450):    at android.os.Handler.handleCallback(Handler.java:615)
10-17 00:41:04.260: E/AndroidRuntime(27450):    at android.os.Handler.dispatchMessage(Handler.java:92)
10-17 00:41:04.260: E/AndroidRuntime(27450):    at android.os.Looper.loop(Looper.java:137)
10-17 00:41:04.260: E/AndroidRuntime(27450):    at android.app.ActivityThread.main(ActivityThread.java:4898)
10-17 00:41:04.260: E/AndroidRuntime(27450):    at java.lang.reflect.Method.invokeNative(Native Method)
10-17 00:41:04.260: E/AndroidRuntime(27450):    at java.lang.reflect.Method.invoke(Method.java:511)
10-17 00:41:04.260: E/AndroidRuntime(27450):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1008)
10-17 00:41:04.260: E/AndroidRuntime(27450):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:775)
10-17 00:41:04.260: E/AndroidRuntime(27450):    at dalvik.system.NativeStart.main(Native Method)

I have stucked by this for the whole night. Are there ways to copy files??

Did you mark the commons jar as "export" in your classpath? Seems like it's not being excluded in the apk. — 323go, Oct 16 '13 at 16:49
sorry I find a terrible mistake, after amending the code as FileUtils.copyFile(source, desc); it now performed as intented. Still Many thanks for your help! — pearmak, Oct 16 '13 at 17:01
[To move a file, this might help:](http://stackoverflow.com/a/24841162/6482996) — Vinay Mundada, Jul 12 '16 at 11:22

score 37 · Accepted Answer · edited Mar 15 '14 at 22:02

37

It runs good after amended in the following way:

    button1_save.setOnClickListener(new OnClickListener() 
    {
        public void onClick(View v) 
        {
            String sourcePath = Environment.getExternalStorageDirectory().getAbsolutePath() + "/TongueTwister/tt_temp.3gp";
            File source = new File(sourcePath);

            String destinationPath = Environment.getExternalStorageDirectory().getAbsolutePath() + "/TongueTwister/tt_1A.3gp";
            File destination = new File(destinationPath);
            try 
            {
                FileUtils.copyFile(source, destination);
            } 
            catch (IOException e) 
            {
                e.printStackTrace();
            }
        }
    });

edited Mar 15 '14 at 22:02

Joshua Pinter

45,245
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answered Oct 16 '13 at 17:02

pearmak

4,979
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2

where is FileUtils ? @pearmak – Developers Park May 06 '14 at 12:10
@APOORVADOSHI [FileUtils](http://commons.apache.org/proper/commons-io/javadocs/api-2.4/index.html) is Apache commons io package. To use it, you have to add commons-io.jar into your project. – Nitish Jun 12 '14 at 13:23
FileUtils solved the problem like a charm , also it copies entire directory just pass the destination directory and source directory , it will copy the entire directory into the new directory – Khay May 07 '15 at 12:26
3

commons-io android gradle dependancy compile 'commons-io:commons-io:2.4' – Shivaraj Patil Sep 08 '15 at 09:39
FileUtils.copyFile() functions makes one extra copy of file in DCIM folder! – Om Infowave Developers Mar 16 '18 at 13:13

Nilesh Rathore · Answer 2 · 2020-05-18T20:04:39.950

6

In API level 29, android added FileUtils class, which has copy function.

Use this code to copy your file:-

public void copyFile(File source, File destination) throws IOException {
    FileUtils.copy(new FileInputStream(source), new FileOutputStream(destination));
}

If Android Studio does not find FileUtils class, that means your compileSdkVersion is lower than 29, in this case, you have to upgrade your compileSdkVersion.

For upgrading, go to your app-level build.gradle file and replace the old compileSdkVersion with 29

Like this

compileSdkVersion 29

For more info about FileUtils class, visit Android Developer Website https://developer.android.com/reference/android/os/FileUtils

edited May 18 '20 at 20:04

answered Apr 13 '20 at 13:42

Nilesh Rathore

886
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You have to increase minSdkVersion to 29, not compileSdkVersion. – Hatzegopteryx Mar 07 '21 at 15:55
1

java.io.FileNotFoundException: /storage/emulated/0/DCIM/Camera/IMG_20210629_175744.jpg: open failed: EACCES (Permission denied) – Abraham Mathew Jun 30 '21 at 08:06
Make sure the read write permissions are given before this call – Rohit Patil Sep 15 '21 at 07:12

Android: copying files from one directory to another

Code:

Apache Commons:

Question:

2 Answers2

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