LAMW: How to check if a file exists in assets, at runtime?
lazarus / 43-Android

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Manlio · 2019-08-02 07:43

Is there a way to check if a file exists in the app's assets?

I cannot use FileExists(), because Assets files are not in a regular
folder, but are bundled (zipped) in the APK.

So, is there perhaps another way to find whether a file exists in the
Assets, at runtime?

Thank you

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Thaddy · 2019-08-02 10:00

You can use the viewzip function in the unzip package (a standard
package in FPC).
I did not test it, but that should work with APK files too.
What I do know is that this package can be compiled for android and
works.

There is an example in the comments of sourcecode of the unzip
package.

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Manlio · 2019-08-02 11:26

Quote from: Thaddy on August 02, 2019, 12:00:42 pmYou can use the
viewzip [...] that should work with APK files too.

Do you mean that while the app is running I can open the app's APK
file itself, with viewzip, and read it?

And if I understood that correctly, how do you get the actual path of
the currently running APK?

If I can get that path, I can try to open that file (APK is a ZIP
file), and we'll see if the operating system allows that file to be
opened...