B4J Library SD: ZipLibrary

jSD_ZipLibray

Author: Star-Dust
Version: 1.02

• SD_ZipLibray
  • Functions:
    • Class_Globals As String
    • Initialize As String
      Inizializza l'oggetto. Puoi aggiungere parametri a questo metodo,se necessario.
    • IsInitialized As Boolean
      Verifica se l'oggetto sia stato inizializzato.
    • Zip (FilesTxt As String(), FileZip As String)
    • unZip (FilesZip As String, OutPutFolder As String)
    • unZipList (FilesZip As String, OutPutFolder As String) As List

ZIP

Dim ZL As SD_ZipLibray

ZL.Initialize
ZL.Zip(ListFiles,ZipFileName)

UnZip

Dim UnZL As SD_ZipLibray

    UnZL.Initialize
    UnZL.unZip(ZipFileName,FolderDestination)

N.B. When you choose the folder where to save the ZIP file, make sure it is a folder that you have write permission

 

[Peter Simpson]

This is perfect for my next project.

Thank you...

 

[Mashiane]

Hi there, how can one turn off the logs on the console? Can you add such an option please?

Thanks

 

[Star-Dust]

Done

 

[Mashiane]

@Star-Dust me find out that update is not b4J lib, please help...

 

[Star-Dust]

Sorry, I had put the version for Android. Now it's correct

 

[Mashiane]

Now it's correct

Thanks a lot!

 

[m4.s]

This is also just what I've been trying to find for use within my B4J project!

However, in my case, I need to be able to ZIP one or more files in a source folder plus at least one of its sub-folders (with all its files); and then UnZIP both the root-level files and its sub-folder (inherently with all the files it contains) to another location.

Example:

Selected files for ZIPing
C:\MyFolder\File1.xml
C:\MyFolder\File2.png
C:\MyFolder\MySubFolder (containing these 2 files: File3.doc and File4.pdf)


UnZIPed to C:\aDiffFolder
yielding ->

C:\aDiffFolder\File1.xml
C:\aDiffFolder\File2.png
C:\aDiffFolder\MySubFolder\File3.doc
C:\aDiffFolder\MySubFolder\File4.pdf​

Further, if one or more of the extracted files and/or subfolders already exists, could it/they be overwritten with and without prompting?

Would you be able to add such support to your library?

 

[Star-Dust]

The library will not receive updates for the moment, I have no time. I'm sorry.

 

[Star-Dust]

NEW
I decided to make public the code with which I written this library. Use some java code, I think it can help the community understand how to use java (I know very little about it) inside b4x and maybe develop their own libraries.

Find the .BAS file with the source at the first post

 

[Aldo's]

Does this library allow you to know the list of files contained in a zip file?

 

[Star-Dust]

Yes

 

[Aldo's]

Yes

How?

 

[Star-Dust]

In post # 1 all the methods of the class are described. They are inserted to allow how to use the class. Also find an example

 

[Aldo's]

another question: can you create a password protected zip file?

 

[Star-Dust]

another question: can you create a password protected zip file?

Not in this library. But I have attached the sources and you can edit for the function you need

 

[Aldo's]

Not in this library. But I have attached the sources and you can edit for the function you need

I try

Thanks

 

[rtek1000]

Hello,

It works for files, but for folders there is an error: Access is denied

How can folders and files be compressed together?

I'm trying to zip an xlsx file that was unzipped with 7zip.

java.io.FileNotFoundException: C:\Datalogger_XLSX_Test\_rels (Access is denied)
at java.base/java.io.FileInputStream.open0(Native Method)
at java.base/java.io.FileInputStream.open(FileInputStream.java:219)
at java.base/java.io.FileInputStream.<init>(FileInputStream.java:157)
at java.base/java.io.FileInputStream.<init>(FileInputStream.java:112)
at b4j.example.sd_ziplibray.ZipCompress(sd_ziplibray.java:91)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at anywheresoftware.b4j.object.JavaObject.RunMethod(JavaObject.java:132)
at b4j.example.sd_ziplibray._zip(sd_ziplibray.java:71)
at b4j.example.main._button1_click(main.java:85)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at anywheresoftware.b4a.BA.raiseEvent2(BA.java:109)
at anywheresoftware.b4a.BA$1.run(BA.java:234)
at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runLater$10(PlatformImpl.java:428)
at java.base/java.security.AccessController.doPrivileged(Native Method)
at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runLater$11(PlatformImpl.java:427)
at javafx.graphics/com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:96)
at javafx.graphics/com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at javafx.graphics/com.sun.glass.ui.win.WinApplication.lambda$runLoop$3(WinApplication.java:174)
at java.base/java.lang.Thread.run(Thread.java:834)