Share My Creation File Encryptor

This is my first post in this forum.
I'm a newbie. only two weeks with B4X.
Coming from python & kivy I found that though B4X language has a steep learning curve, it is much easyer to build and deploy apps for android in B4A, not to mention the superb documentation.

This app is a simple File Encryptor. You can encrypt the file with the same name or with a different name (just don’t forget to delete the source).

Adding “SetApplicationAttribute(android:largeHeap, "true")” to the manifest file, enabled me to encrypt / decrypt files up to 128 MB. More than that and the app crash with "out of memory error". (help here will be welcome)

Almost all the code is in a separate class so it's easy to apply it to B4J and B4I.

ATTENTION:

DON'T FORGET YOUR PASSWORD. THERE IS NO WAY TO RETRIEVE IT !!!

 

[Erel]

. More than that and the app crash with "out of memory error". (help here will be welcome)

Example of chunk based encryption and decryption

Is there a way to catch this error “java.lang.OutOfMemoryError: Java heap space”? When the error happens it just seems to close the app.. I don’t want the app to close just display the error to the user. NOTE: it seems that the size if file being encrypted depends on the computer and how much...

www.b4x.com

 

[shinalon22]

Example of chunk based encryption and decryption

Is there a way to catch this error “java.lang.OutOfMemoryError: Java heap space”? When the error happens it just seems to close the app.. I don’t want the app to close just display the error to the user. NOTE: it seems that the size if file being encrypted depends on the computer and how much...

www.b4x.com

Thank you Erel

I will implement this solution in my next version