I thought you couldn't instantiate interfaces?

by Mark Murphy » Wed, 31 Mar 2010 01:05:30 GMT


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This code is creating an instance of an anonymous inner class that
implements the interface.


Possible, yes. "Better" is difficult to answer in the abstract.


I tend to make longer anonymous inner classes be private data members:

private View.OnKeyListener onKey=new View.OnKeyListener() {
        public boolean onKey(View v, int keyCode, KeyEvent event) {
                if (event.getAction() == KeyEvent.ACTION_DOWN)
                        if (keyCode == KeyEvent.KEYCODE_DPAD_CENTER) {
                                todoItems.add(0, 
myEditText.getText().toString());
                                aa.notifyDataSetChanged();
                                myEditText.setText("");
                                return true;
                        }
                return false;
        }
};

then call myEditText.setOnKeyListener(onKey) where needed. But that's
just me.

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Mark Murphy (a Commons Guy)
 http://commonsware.com  |  http://twitter.com/commonsguy 

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