Ok, i'm tring to do this:
An application which have two tabs and in one tab here should have a listView
Example:
My problem: i have created the ListView and a TextView for the adapter. But every time i call setAdapter in the ListView the application timeout
OK, the first tab have this xml file (view1.xml):
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<ListView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/listView"/>
</LinearLayout>
Its the class of the fragment:
public class Chats extends Fragment {
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
{
View view = inflater.inflate(R.layout.view1, container, false);
ListView listView = (ListView) view.findViewById(R.id.listView);
String[] arr = {"A", "B", "C", "D", "E", "F"};
ArrayAdapter<String> adapter = new ArrayAdapter<String>(getActivity(), R.layout.row, R.id.listView, arr);
//listView.setAdapter(adapter);
//Log.d("MY_LOGS", "listView == null: " + (listView == null));
return view;
}
}
The file row.xml where is located the TextView
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="?android:attr/listPreferredItemHeight"
android:padding="6dip" >
<TextView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/viewText"
/>
</RelativeLayout>
If i comment out the listView.setAdapter the application timeout with NullPointerException exception..
ERROR/AndroidRuntime(18321): FATAL EXCEPTION: main
java.lang.NullPointerException
at android.widget.ArrayAdapter.createViewFromResource(ArrayAdapter.java:392)
at android.widget.ArrayAdapter.getView(ArrayAdapter.java:362)
at android.widget.AbsListView.obtainView(AbsListView.java:2624)
at android.widget.ListView.measureHeightOfChildren(ListView.java:1254)
at android.widget.ListView.onMeasure(ListView.java:1166)
at android.view.View.measure(View.java:16831)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5245)
at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1410)
at android.widget.LinearLayout.measureVertical(LinearLayout.java:695)
at android.widget.LinearLayout.onMeasure(LinearLayout.java:588)
at android.view.View.measure(View.java:16831)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5245)
at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1410)
at android.widget.LinearLayout.measureHorizontal(LinearLayout.java:1052)
at android.widget.LinearLayout.onMeasure(LinearLayout.java:590)
at android.view.View.measure(View.java:16831)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5245)
at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1410)
at android.widget.LinearLayout.measureVertical(LinearLayout.java:695)
at android.widget.LinearLayout.onMeasure(LinearLayout.java:588)
at android.view.View.measure(View.java:16831)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5245)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:310)
at android.view.View.measure(View.java:16831)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5245)
at com.android.internal.widget.ActionBarOverlayLayout.onMeasure(ActionBarOverlayLayout.java:302)
at android.view.View.measure(View.java:16831)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5245)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:310)
at com.android.internal.policy.impl.PhoneWindow$DecorView.onMeasure(PhoneWindow.java:2586)
at android.view.View.measure(View.java:16831)
at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:2186)
at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1349)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1532)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1246)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6350)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:791)
at android.view.Choreographer.doCallbacks(Choreographer.java:591)
at android.view.Choreographer.doFrame(Choreographer.java:561)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:777)
at android.os.Handler.handleCallback(Handler.java:730)
at android.os.Handler.dispatchMessage(Handler.java:92)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:5419)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:525)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1187)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1003)
at dalvik.system.NativeStart.main(Native Method)
What can be the problem? Nothing are null..
