java - ApplicationInfo metadata returning null -


i have following code:

in manifest:

<meta-data     android:name="com.facebook.sdk.applicationid"     android:value="@string/facebookapplicationid" />

in code:

applicationinfo ai = getpackagemanager().getapplicationinfo(         getpackagename(), packagemanager.get_meta_data); if (ai.metadata != null) {    ...

but result ai.metadata==null. why happening

from latest android doc, <meta-data> can contained in <activity>/<activity-alias>/<service>/ <receiver>. should append meta-data in these components, not in <application> directly.


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