Android清单，如何禁用较低API的启动器图标

Question

i have an accessibility application ive written, but on android 4.0 and higher, the api allows for a settings activity to be set. This defeats the purpose of having a launcher entry. Is there a way to single out 4.0 and higher systems in the manifest to not have the launcher icon?

EDIT: solution

I subclassed the original settings to a JB/ICS one. this is pretty uncessesary at this point, but if something JB/ICS specific is added to the app, it would probably be good in the long run to keep them seperate.

thanks alanv, your snippet did still help

Answer 1

You can selectively disable an activity based on the platform version. Add an activity alias for your Settings activity and set the enabled attribute to a platform-specific value. This will ensure that it only shows up in the Launcher when you need it to.

AndroidManifest.xml:

<activity
    android:name=".MySettingsActivity"
    . . . >
</activity>

<activity-alias
    android:name=".MyActivityAlias"
    android:label="@string/settings"
    android:targetActivity=".MySettingsActivity"
    android:enabled="@bool/show_settings">
        <intent-filter>
        . . .
        </intent-filter>
</activity-alias>

values-v14/bool.xml:

<bool name="show_settings">false</bool>

values/bool.xml:

<bool name="show_settings">true</bool>