Intent's parameter always been keep when enter from task manager

Question

I use short cut to start an activity with an action and parameters.

    fun makeShortcut(id: String, @StringRes shortLabel: Int, @StringRes longLabel: Int,
                         @DrawableRes icon: Int, action: String, cmd: String): ShortcutInfo {

            return ShortcutInfo.Builder(context(), id)
                    .setShortLabel(context().getString(shortLabel))
                    .setLongLabel(context().getString(longLabel))
                    .setIcon(Icon.createWithResource(context(), icon))
                    .setIntents(arrayOf(
                            Intent(action).putExtra(KEY_CMD, cmd)
                    ))
                    .build()
        }

After starting the activity, I do some stuff and finish the activity. The I launch the activity from task manager. The value passed by KEY_CMD is still exists. I want to clear the values when activity enter from task manager.

score 1 · Accepted Answer · answered Jan 07 '19 at 16:17

This is either a bug or a feature of Android, depending on how you expect things to work. For you it obviously is more of a bug than a feature. See my detailed analysis of a similar question here

To solve your problem you could try creating an <activity-alias> that you use for the shortcut. The <activity-alias> points to the same <activity> that you use as your main launcher, but you can specify different flags and behaviour. If you specify android:excludeFromRecents="true" in the <activity-alias> and use the <activity-alias> in your shortcut, this should solve your problem.

If your entire application contains only one single Activity, then you could probably easily solve your problem by adding android:excludeFromRecents="true" for your Activity in the manifest (in this case you don't need the <activity-alias>).

Intent's parameter always been keep when enter from task manager

1 Answers1