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POAndroid ListView NullPointerException when inflating View
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  1. POAndroid ListView NullPointerException when inflating View
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    copied!<p>i have a ListView with a custom row: <strong>detail_row1.xml</strong></p> <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:orientation="horizontal" android:layout_height="wrap_content" android:padding="6dip" **android:background="@drawable/item_background_selector"** ---&gt; line 7 android:id="@+id/detail_linearLayout" &gt; &lt;TextView android:id="@+id/propName" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_weight="1" android:textSize="16sp" android:textStyle="bold" android:textColor="#000000" android:gravity="center_vertical|left" android:paddingTop="10sp" android:paddingBottom="10sp" android:paddingLeft="4sp" /&gt; &lt;TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_weight="2" android:id="@+id/propValue" android:textColor="#000000" android:textSize="16sp" android:textStyle="bold" android:paddingTop="10sp" android:paddingBottom="10sp" android:paddingRight="4sp" android:gravity="center_vertical|right" /&gt; &lt;/LinearLayout&gt; </code></pre> <p>my <strong>/drawable/item_background_selector.xml</strong> (SAME if i put it under <strong>/color/item_background_selector.xml</strong> and properly reference it in detail_row1.xml)</p> <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;selector xmlns:android="http://schemas.android.com/apk/res/android"&gt; &lt;item android:state_selected="false" android:color="#ACD52B"&gt; &lt;/item&gt; &lt;item android:state_selected="true" android:color="#0094CE"&gt; &lt;/item&gt; &lt;/selector&gt; </code></pre> <p>when I try to inflate this view in my ListAdapter:</p> <pre><code>public View getView(int position, View convertView, ViewGroup parent) { View v=convertView; if(v==null) { LayoutInflater vi = (LayoutInflater)getSystemService(Context.LAYOUT_INFLATER_SERVICE); v=vi.inflate(R.layout.detail_row1, null); **--&gt; NullPointerException** } . . </code></pre> <p>It throws a NullPointerException.</p> <p>This is not the case if i simply remove line 7 (android/background) from detail_row1.xml</p> <p>Any clue / help on why this is happening (fairly new to android)</p> <p>Thanks in advance!</p> <p>(edit) Logcat:</p> <pre><code>**08-24 00:27:53.637: E/AndroidRuntime(15295): FATAL EXCEPTION: main** 08-24 00:27:53.637: E/AndroidRuntime(15295): android.view.InflateException: Binary XML file line #2: Error inflating class &lt;unknown&gt; 08-24 00:27:53.637: E/AndroidRuntime(15295): at android.view.LayoutInflater.createView(LayoutInflater.java:613) 08-24 00:27:53.637: E/AndroidRuntime(15295): at com.android.internal.policy.impl.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:56) 08-24 00:27:53.637: E/AndroidRuntime(15295): at android.view.LayoutInflater.onCreateView(LayoutInflater.java:660) 08-24 00:27:53.637: E/AndroidRuntime(15295): at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:685) 08-24 00:27:53.637: E/AndroidRuntime(15295): at android.view.LayoutInflater.inflate(LayoutInflater.java:466) 08-24 00:27:53.637: E/AndroidRuntime(15295): at android.view.LayoutInflater.inflate(LayoutInflater.java:396) 08-24 00:27:53.637: E/AndroidRuntime(15295): at android.view.LayoutInflater.inflate(LayoutInflater.java:352) 08-24 00:27:53.637: E/AndroidRuntime(15295): at **com.dhomes.steel.DetailActivity$1.getView(DetailActivity.java:101)** </code></pre> <p><strong>(2nd edit)</strong> </p> <p>My listAdapter:</p> <pre><code>lvProperties.setAdapter(new ListAdapter() { //Section section=new Section(); @Override public View getView(int position, View convertView, ViewGroup parent) { View v=convertView; if(v==null) { //LayoutInflater vi = (LayoutInflater)getSystemService(Context.LAYOUT_INFLATER_SERVICE); LayoutInflater vi =(LayoutInflater)DetailActivity.this.getSystemService(Context.LAYOUT_INFLATER_SERVICE); v=vi.inflate(R.layout.detail_row1, null); } TextView name=(TextView)v.findViewById(R.id.propName); TextView value=(TextView)v.findViewById(R.id.propValue); if(name!=null) { name.setText(section.propNames.get(position)); } if(value!=null) { value.setText(section.propValues.get(position)); } return v; } . . . } </code></pre>
 

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