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POcustom spinner null pointer exception
 

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  1. POcustom spinner null pointer exception
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    <p>MySpinner.java</p> <p>Below is my custom adapter</p> <pre><code>public class MyAdapter extends ArrayAdapter&lt;String&gt; { public MyAdapter(Context context, int textViewResourceId,String[] objects) { super(context, textViewResourceId, objects); // TODO Auto-generated constructor stub } public View getDropDownView(int position, View convertView,ViewGroup parent) { return getCustomView(position, convertView, parent); } public View getView(int position, View convertView, ViewGroup parent) { return getCustomView(position, convertView, parent); } public View getCustomView(int position, View convertView, ViewGroup parent) { inflater1=(LayoutInflater)this.getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE); rowlayout=inflater1.inflate(R.layout.spinnerlayout, parent, false); txt1=(TextView)rowlayout.findViewById(R.id.textView1); txt1.setText(s[position]); txt1.setTextSize(TypedValue.COMPLEX_UNIT_DIP,DropDownTextSize); txt1.setHeight(RowSize); return rowlayout; } </code></pre> <p>}</p> <p>I made the custom spinner in a different project,which i marked as a library project.</p> <p>Suppose i have a main.xml file with a linear layout. If i add only custom spinner to it,it works fine without any error even if main.xml is in same project or other.</p> <p>But if i add any other widget to linear layout along with the custom spinner,it gives me null pointer exception,only if that main.xml is not in the same project.</p> <p>For main.xml in the same project it works just fine.</p> <p>1) Why is it that my custom spinner is not visible in the pallete in projects with different target api's?</p> <p>2)In other project's main.xml if i add only custom spinner,it works properly but if there is any other component like button,textview etc along with it,it gives me a null pointer exception at</p> <pre><code>txt1.setText(s[position]); </code></pre> <p>Why does this happen?</p>
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    1. USFlake
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    1. COWhat is `s`? Its declaration and definition are not in the code you've provided.
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      1. USEric
    2. COs is the string array to populate the spinner
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      1. USFlake
    3. COYes, but either `txt1` or `s` is null here. Check your `spinnerlayout.xml` file, and ensure that you have a `TextView` with ID `textView1`. If you do, then `s` is null.
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