Android metadata from manifest returning null

Question

I have a class with one method that tries to retrieve meta-data from the manifest. Everything works fine except that the bundle that I create from the application info returns null values

Here's the code:

    private int getCurrentVersion(){
    int currVersion = 0;

    try {
        ApplicationInfo app = context.getPackageManager().getApplicationInfo(context.getPackageName(),PackageManager.GET_META_DATA);
        Bundle bundle = app.metaData;

        for (String key: bundle.keySet())
        {
          Log.d ("TEST", key + " is a key in the bundle");
        }

        Log.d("TEST","google: "+bundle.getString("com.google.android.gms.version"));
        Log.d("TEST","version: "+bundle.getString("dbVersion"));

        //currVersion = Integer.valueOf(bundle.getString("dbVersion"));
        currVersion = 1;
    } catch (NameNotFoundException e) {
        e.printStackTrace();
    } catch (NullPointerException e) {
        e.printStackTrace();         
    }

    return currVersion;
}


03-05 18:53:23.818: D/TEST(31400): com.google.android.gms.version is a key in the bundle
03-05 18:53:23.818: D/TEST(31400): dbVersion is a key in the bundle
03-05 18:53:23.828: D/TEST(31400): google: null
03-05 18:53:23.828: D/TEST(31400): version: null

As you can see I'm using some logs to see if the bundle is empty, but its not.

Answer 1

In some cases you need to use getInt() method:

bundle.getInt("com.google.android.gms.version"));

because the value of this meta-data is defined as an integer.

Log.d("TEST","google: "+bundle.getInt("com.google.android.gms.version"));

For example if the value defined in your meta-data is a String:

     <meta-data 
         android:name="com.elenasys.a"
         android:value="abcXJ434" />  

use:

   bundle.getString("com.elenasys.a"));   

if the value is an integer:

   <meta-data 
         android:name="com.elenasys.b"
         android:value="1234" />  

use getInt()

 bundle.getInt("com.elenasys.b"));