Text selection menu does not offer PROCESS_TEXT apps (dictionary / translate) — missing <queries> declaration

[preyevates]

Summary

Selecting text in this app shows only the built-in actions. Apps that register
android.intent.action.PROCESS_TEXT — offline dictionaries, translators, search tools — never
appear in the selection toolbar, even when they are installed and working correctly.

Cause

Since Android 11 (targetSdk 30), package visibility filtering
applies to PackageManager.queryIntentActivities(). The text-selection toolbar is built inside the
app's own process, so an app that does not declare <queries> for PROCESS_TEXT receives an empty
result and renders no items.

Suggested fix

Add to AndroidManifest.xml:

<queries>
    <intent>
        <action android:name="android.intent.action.PROCESS_TEXT" />
        <data android:mimeType="text/plain" />
    </intent>
</queries>

No code change, no new runtime permission, and no visible difference for users who have no such
apps installed.

How I verified this

On an Android device with 10 PROCESS_TEXT handlers installed:

• cmd package query-activities -a android.intent.action.PROCESS_TEXT -t text/plain resolves all 10.
• Apps that declare the <queries> block (Thunderbird, RedReader, Aves, Obtainium) show those
  handlers in the selection toolbar.
• Apps that do not declare it, including this one, show none.
• Firing the intent explicitly with
  am start -a android.intent.action.PROCESS_TEXT -t text/plain --es android.intent.extra.PROCESS_TEXT "word" -n <handler>
  launches the handler correctly — so the handler side is fine, and only the caller-side
  declaration is missing.

References

• https://developer.android.com/training/package-visibility
• https://developer.android.com/reference/android/content/Intent#ACTION_PROCESS_TEXT