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how to getPackageManager in fragment Android

Posted by: admin February 24, 2018 Leave a comment


I have this app that I am clearing cache with, but I can’t figure out how to get getPackageManager to work in the fragment.
Here is my code. Any help would be very appreciated. I am very new to android and java. Thank you very much.

public class Cache  extends SherlockFragment  {

    Button cache;

    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

        View view = inflater.inflate(R.layout.cache, null);
        cache = (Button) view.findViewById(R.id.button3);

        cache.setOnClickListener(new OnClickListener() {

            public void onClick(View v) {
                Toast.makeText(getActivity(), "Cache is Cleared", Toast.LENGTH_SHORT).show();   
                PackageManager  pm = getPackageManager();

                // Get all methods on the PackageManager
                java.lang.reflect.Method[] methods = pm.getClass().getDeclaredMethods();

                for (java.lang.reflect.Method m : methods) {
                    if (m.getName().equals("freeStorageAndNotify")) {
                        // Found the method I want to use
                        try {
                            long desiredFreeStorage = Long.MAX_VALUE; // Request for free space
                            m.invoke(pm, desiredFreeStorage , null);
                        } catch (Exception e) {
                            // Method invocation failed. Could be a permission problem

            private PackageManager getPackageManager() {
                // TODO Auto-generated method stub
                return null;
        return view;

you should be able to access getPackageManager(), through getActivity().

For instance getActivity().getPackageManager()