Android Question Registering custom file extensions

[andyp]

Hi

I would like my app to open when the user clicks on a text file (email attachment) with a custom file extension (.cgh)

I have tried many solutions, all with the same issue - When I click on the .cgh file, I get the option to open it with my app. But having done that, my app now opens when I click on any file with an unknown file extension (say .arp)

Is there any way I can stop this behavior?

I would like my app to only open if the user clicks on a .cgh file.

Alternatively, is there any way to have my app come up as an option when I click on a .cgh file, but for this choice to not be remembered?

The relevant bit in my manifest is:

AddActivityText(moreInfo,
        <intent-filter >
           <action android:name="android.intent.action.VIEW" />
            <category android:name="android.intent.category.DEFAULT" />
         <data android:mimeType="*/*" />
            <data android:pathPattern="*.cgh" />
        </intent-filter>
)

Thank you
Andrew

 

[DonManfred]

try it with

<intent-filter>
    <action android:name="android.intent.action.VIEW" />
    <category android:name="android.intent.category.DEFAULT" />
    <data android:scheme="file" />
    <data android:host="*" />
    <data android:pathPattern=".*\\.cgh" />
  </intent-filter>

 

[andyp]

Hi Don

Unfortunately that code does not work - the app does not come up as an option when I click on the .cgh file......

 

[Erel]

Have you tried your solution with the android:scheme and host lines?

 

[andyp]

Tried as you suggested. Unfortunately that code does not work - the app does not come up as an option when I click on the .cgh file...…

AddActivityText(moreInfo,
    <intent-filter >
       <action android:name="android.intent.action.VIEW" />
       <category android:name="android.intent.category.DEFAULT" />
       <data android:scheme="file" />
       <data android:host="*" />
       <data android:mimeType="*/*" />
       <data android:pathPattern="*.cgh" />
    </intent-filter>
)

 

[Erel]

It seems like this kind of file intents do not work on Android 7+.

 

[andyp]

Are there any other options?

Behavior with other ‘commercial’ applications (pdf files, etc) seems to work with no issues

Failing this, what is the best way of importing a text file of data (arriving in an email) into an app? Maybe save the file on the device, and I guess there is some way of opening a file from within an app using b4a?

Thank you for any thoughts...…..

 

[Erel]

Behavior with other ‘commercial’ applications (pdf files, etc) seems to work with no issues

The intent filters are created based on the mime type. The file browser knows the mime type based on known extensions.

You can use ContentChooser to let the user choose a file or other resources.

 

[andyp]

Thank you. ContentChooser is working well.

But I hope Google 'fixes' Intents from the manifest file - I cants imagine the previously working Intent method of file association has been changed 'on purpose'.

 

[Erel]

Starting from Android 7 you can no longer share file URIs. I guess that it is related to this change.