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What is IsL? Why are you using ReadObject instead of ReadB4XObject / WriteB4XObject?...
link: RAF.WriteObject(lsL) can write lsL correctly? and RAF.ReadObject() can read the list back?...
link: In an Activity with List.Add(Obj), when the Obj is a instance of a class, in the Obj members will ha...
link: I mean that I did't put the Class instances in my instance, but it appear in my instance automat...

What is the compression method of randomaccessfile.writeobject? I need to decrypt it in PHP. Or should I use CompressedStreams?...

.b4a.randomaccessfile.B4XSerializator.writeObject(B4XSerializator.java:241) at anywheresoftware....b4a.randomaccessfile.B4XSerializator.writeObject(B4XSerializator.java:221) at anywheresoftware....B4XSerializator.writeObject(B4XSerializator.java:224) at anywheresoftware.b4a.randomaccessfile.B4XSerializator.WriteObject(B4XSerializator.java:121) at anywheresoftware.b4a.randomaccessfile.... at anywheresoftware.b4a.randomaccessfile.B4XSerializator.writeObject(B4XSerializator.java:233...

use randomaccessfile library randomaccessfile.writeobject search the forum for samples...

RandomAccessFile.WriteObject to save the object in the store. 'It is capable of writing... class uses an SQLite database to store and retrieve all kinds of values. It uses RandomAccessFile.WriteObject or WriteEncryptedObject to save collections and user types. Using KeyValueStore.... The class is included in the attached example. It depends on the SQL and RandomAccessFile libraries...

.writeObject(B4XSerializator.java:213) at anywheresoftware.b4a.randomaccessfile.B4XSerializator....writeObject(B4XSerializator.java:224) at anywheresoftware.b4a.randomaccessfile.B4XSerializator.writeMap(B4XSerializator.java:256) at anywheresoftware.b4a.randomaccessfile.B4XSerializator.writeObject...(B4XSerializator.java:256) at anywheresoftware.b4a.randomaccessfile.B4XSerializator.writeObject...(B4XSerializator.java:256) at anywheresoftware.b4a.randomaccessfile.B4XSerializator.writeObject...

This is a beta version of an important new feature. Two new methods were added to RandomAccessFile: WriteObject and ReadObject. These methods allow you to write and read objects to files easily. The following types of objects are supported: lists, maps, arrays, strings, primitive types (numeric..., writing an array to a file: Dim raf As RandomAccessFile raf.Initialize(File.DirRootExternal, "1.dat", False) Dim arr(10) As Int 'fill the array... raf.WriteObject(arr...

You cannot serialize a ListView. See the supported types: https://www.b4x.com/android/help/randomaccessfile.html#randomaccessfile_writeobject...

) at anywheresoftware.b4a.randomaccessfile.RandomAccessFile.writeObject(RandomAccessFile.java:438...) at anywheresoftware.b4a.randomaccessfile.RandomAccessFile.writeObject(RandomAccessFile.java:442...) at anywheresoftware.b4a.randomaccessfile.RandomAccessFile.writeObject(RandomAccessFile.java:430....b4a.randomaccessfile.RandomAccessFile.writeObject(RandomAccessFile.java:442) at anywheresoftware....b4a.randomaccessfile.RandomAccessFile.writeObject(RandomAccessFile.java:430) at anywheresoftware...

:mad: ... so I have to retrieve the values as a single string and then split it Thanks Not necessarily. Look at ReadObject/WriteObject from RandomAccessFile. http://www.b4x.com/android/help/randomaccessfile.html#randomaccessfile_writeobject...