If your error report is accurate, you are not setting lv to a value,
and so it is null.
On Mon, Aug 2, 2010 at 4:25 PM, kivy <victoriasarabu...@gmail.com> wrote:
> Hi
>
> I am trying to populate a ViewFlipper with a ListView when a certain
> button is clicked...but I only get a NullPointerException for
> lv.setAdapter(new ArrayAdapter<String>(this,
> R.layout.specialeffectsview, specialEffects));
>
> To be honest I don't really know how to do this, I just learned about
> the ViewFlipper today and I haven't fully understood how to use it
> yet. If anyone could help me find how what I have done wrong, that
> would be great.
>
> Thanks in advance.
>
> Here is the code I use:
>
> public void onClick(View v){
> if (v == btnExposure){
>
> mFlipper.setDisplayedChild(0);
>
> }
> else if (v == btnProperties){
> mFlipper.setDisplayedChild(1);
> }
>
> else if (v == btnSpecialEffects){
> mFlipper.setDisplayedChild(2);
> String[] specialEffects =
> getResources().getStringArray(R.array.special_effects_array);
> lv.setAdapter(new ArrayAdapter<String>(this,
> R.layout.specialeffectsview, specialEffects));
> lv.setChoiceMode(ListView.CHOICE_MODE_SINGLE);
> }
>
> }
>
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