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I get the following warning when I instantiate my ArrayAdapter (compiles fine):

warning: [unchecked] unchecked call to ArrayAdapter(android.content.Context,int,java.util.List<T>) as a member of the raw type android.widget.ArrayAdapter
      ArrayAdapter spinnerArrayAdapter = new ArrayAdapter(CFAMain.this, android.R.layout.simple_spinner_dropdown_item, spinnerArray);

And here's the problem line:

ArrayAdapter spinnerArrayAdapter = new ArrayAdapter(CFAMain.this, android.R.layout.simple_spinner_dropdown_item, spinnerArray);

Anyone have any ideas as to why it's giving me this warning?

Andreas Dolk
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xil3
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1 Answers1

102

That's because ArrayAdapter expects you to specify which type of object it will manipulate. So, in order to avoid those warnings just do:

ArrayAdapter<String> spinnerArrayAdapter = new ArrayAdapter<String>(CFAMain.this, android.R.layout.simple_spinner_dropdown_item, spinnerArray);
Cristian
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  • Yeah, I just figured it out a few seconds before you posted this - thanks though :) – xil3 Nov 17 '10 at 13:52
  • I put but it shows: Cannot resolve constructor 'ArrayAdapter(xxxxxx) . – Ray Mar 22 '19 at 12:09
  • @Raymond try ArrayAdapter spinnerArrayAdapter = new ArrayAdapter<>(CFAMain.this, android.R.layout.simple_spinner_dropdown_item, spinnerArray); – AbhinayMe Nov 08 '19 at 08:15