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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