B4A Library [Class] File Explorer with visualization

Hi,

I created this class because I was frustrated by the File Dialog in the (great) Dialogs lib. With that class, you can customize everything (since you have the source code) and add new functions like rename, delete, create folder, etc.
Currently, the class can visualize picture and text files (or not if you set the option to false) when you select them.
You can make multiple selections.

If your activity contains a TabHost, loot at post #7.

Add this permission to the manifest for Android v4+:
AddPermission(android.permission.READ_EXTERNAL_STORAGE)

Since September 1st 2014, this class is completely free.

Enjoy,
Fred

 

[Amalkotey]

Thank you for publishing this class.

 

[Informatix]

I have an annoying problem with ICS. When you type in the EditText at the bottom of the dialog, all letter keys & number keys are redirected to another EditText, under the dialog. What a mess! I don't know how to prevent this. If someone find a way to fix it, or a workaround, please let me know.

 

[Erel]

How can I reproduce it? Should I add another EditText?

Tip: Set EditText.InputType to not show suggestions:

EditText.InputType = Bit.Or(EditText.InputType, 0x80000)

 

[Informatix]

I can't reproduce the problem outside my application. So I suppose it's in my app only.

 

[Informatix]

I found where's the problem. It's a bug in TabHost:

Non-toplevel TabHost (meaning: embedded in another layout) will steal the
focus from an EditText elsewhere in that layout. Upon a keypress, but
before the letter for the depressed key shows up in the EditText -- the focus
jumps back to the first tab.

It's easy to reproduce: put an EditText in a TabHost and open the file explorer. Try to type something. The focus always returns to the underlying EditText, even when you set it to not focusable (with the reflection lib) and disable the TabHost.
I can't see a solution for now. I can only say: avoid TabHosts with this class.

 

[Informatix]

Finally, after reading its source code, I found a way to prevent a TabHost from stealing the focus.

Dim r as Reflector
r.Target = TabHost1
'0x00060000=FOCUS_BLOCK_DESCENDANTS
r.RunMethod2("setDescendantFocusability", 0x00060000, "java.lang.int")

Back to normal:

'0x00040000=FOCUS_AFTER_DESCENDANTS
r.RunMethod2("setDescendantFocusability", 0x00040000, "java.lang.int")
TabHost1.RequestFocus

Happy Fred

 

[Informatix]

New version:
- I fixed the bug in mode OnlyFolders
- I added a fourth panel at the bottom to separate the OK button from the list
- Keys are now intercepted properly (TrapKeys is not needed anymore)
- The code is globally more robust
- Suggestions are no longer displayed (thanks to Erel)

See post #1

 

[Informatix]

v1.11: I fixed a bug with Key_Up on some devices

See post #1

 

[Informatix]

v1.12: I fixed a bug, again (the EditText wasn't resetted after changing folder)
Shame on me. Where is my mind ?

See post #1

 

[duneplodder]

Hi Fred
I get an "Invalid Attachment" error when I try to download v1.11
Regards,
Robert

 

[Informatix]

Hi Fred
I get an "Invalid Attachment" error when I try to download v1.11
Regards,
Robert

I suppose you tried when I was uploading the new version. You should retry with the v1.12.

Regards.

 

[duneplodder]

Obviously that was the problem!
Now downloaded successfully.
Robert

 

[Informatix]

v1.2:
- I fixed a bug with the root folder
- I added a new function: "Explorer2". Use it if you want to apply the default android themes (dark or light) to mimic a standard dialog. "Explorer" is still there for customized colors.

Fred

 

[Jost aus Soest]

Thanx a lot for your nice work!

 

[nypaulie]

Need a location.

In the original post there is the following:
"PS: you need the Reflection lib"

When I tried to compile/run I got a missing library reference error, so how do I find where to locate and reference this lib file? Thanks for helping this noob!

 

[Informatix]

In the original post there is the following:
"PS: you need the Reflection lib"

When I tried to compile/run I got a missing library reference error, so how do I find where to locate and reference this lib file? Thanks for helping this noob!

Reflection library v2.20

 

[nypaulie]

Originally Posted by nypaulie
In the original post there is the following:
"PS: you need the Reflection lib"
When I tried to compile/run I got a missing library reference error, so how do I find where to locate and reference this lib file? Thanks for helping this noob!

Reflection library v2.20

Downloaded the Reflection lib file, unzipped it and put both the jar and xml files into my Librairies directory (and set the path to find them) but still get the error.

 

[boastrike]

On the IDE screen bottom right. Select the tab libs and check the reflection library to include it in your app. -boa

 

[nypaulie]

On the IDE screen bottom right. Select the tab libs and check the reflection library to include it in your app. -boa

That corner of my IDE was out of view until I resized the window. Duhh... Thank you for this!