Question

I’m using the following code to read a map of type HashMap<String, String> from a Parcel:

in.readHashMap(HashMap.class.getClassLoader());

This seems to work just fine, but I get a warning:

Type safety: The expression of type HashMap needs unchecked conversion to conform to Map<String,String>

Is there a “right” way to do this, use a different class loader? Or should I just go with @SuppressWarnings("unchecked")?

Answer 1

The Android developer documentation for Parcel.readHashMap() says:

Please use readBundle(ClassLoader) instead (whose data must have
been written with writeBundle(Bundle).

So maybe you should be using readBundle() and writeBundle() instead.