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Failed to print ClickedItem ListView position on Android using JAVA

Lower grade extends from

public class LocationListFragment extends ListFragment implements LoaderManager.LoaderCallbacks<List<Location>>{ private final static String TAG = LocationListFragment.class.getName(); private LocationListLoader locationListLoader; private LocationListAdapter locationListAdapter; private int userId; Context context; @Override public void onActivityCreated(Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState); ListView lv = getListView(); lv.setTextFilterEnabled(true); lv.setOnItemClickListener(new OnItemClickListener() { public void onItemClick(AdapterView<?> parent, View view, int position, long id) { // When clicked, show a toast with the TextView text Toast.makeText(getActivity(), ((TextView) view).getText(), Toast.LENGTH_SHORT).show(); Log.i("position",""+position); } }); int locationListType = getArguments().getInt(LocationListActivityFinal.LOCATION_LIST_TYPE); switch (locationListType) { case LocationListActivityFinal.DOMESTIC: userId = getArguments().getInt(LocationListActivityFinal.ASSIGNED_USER_ID); break; case LocationListActivityFinal.COMMERCIAL: userId = getArguments().getInt(LocationListActivityFinal.ASSIGNED_USER_ID); break; default: break; } getLoaderManager().initLoader(101,null,this); } @Override public void onListItemClick(ListView l,View v, int position, long id) { Log.i("DataListFragment", "Item clicked: " + id); } @Override public Loader<List<Location>> onCreateLoader(int id, Bundle args) { locationListLoader = new LocationListLoader(getActivity()); return locationListLoader; } @Override public void onLoadFinished(Loader<List<Location>> arg0, List<Location> locations) { locationListAdapter = new LocationListAdapter(getActivity(),locationListLoader); setListAdapter(locationListAdapter); if (isResumed()) { setListShown(true); } else { setListShownNoAnimation(true); } locationListAdapter.notifyDataSetChanged(); } }

I populate the ListView from Service and its performance, but when I try to click on the ListView, showing this LogCat:

  01-14 04:21:29.995: E/AndroidRuntime(3174): FATAL EXCEPTION: main 01-14 04:21:29.995: E/AndroidRuntime(3174): java.lang.ClassCastException: android.widget.LinearLayout cannot be cast to android.widget.TextView 01-14 04:21:29.995: E/AndroidRuntime(3174): at com.mrfs.android.surveyapp.activities.fragments.LocationListFragment$1.onItemClick(LocationListFragment.java:45) 01-14 04:21:29.995: E/AndroidRuntime(3174): at android.widget.AdapterView.performItemClick(AdapterView.java:301) 01-14 04:21:29.995: E/AndroidRuntime(3174): at android.widget.AbsListView.performItemClick(AbsListView.java:1276) 01-14 04:21:29.995: E/AndroidRuntime(3174): at android.widget.AbsListView$PerformClick.run(AbsListView.java:3067) 01-14 04:21:29.995: E/AndroidRuntime(3174): at android.widget.AbsListView$1.run(AbsListView.java:3963) 01-14 04:21:29.995: E/AndroidRuntime(3174): at android.os.Handler.handleCallback(Handler.java:615) 01-14 04:21:29.995: E/AndroidRuntime(3174): at android.os.Handler.dispatchMessage(Handler.java:92) 01-14 04:21:29.995: E/AndroidRuntime(3174): at android.os.Looper.loop(Looper.java:137) 01-14 04:21:29.995: E/AndroidRuntime(3174): at android.app.ActivityThread.main(ActivityThread.java:4898) 01-14 04:21:29.995: E/AndroidRuntime(3174): at java.lang.reflect.Method.invokeNative(Native Method) 01-14 04:21:29.995: E/AndroidRuntime(3174): at java.lang.reflect.Method.invoke(Method.java:511) 01-14 04:21:29.995: E/AndroidRuntime(3174): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1006) 01-14 04:21:29.995: E/AndroidRuntime(3174): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:773) 01-14 04:21:29.995: E/AndroidRuntime(3174): at dalvik.system.NativeStart.main(Native Method)

Error while scrolling ListView:

01-14 04: 35: 02.555: E / AndroidRuntime (6964): FATAL EXCEPTION: main 01-14 04: 35: 02.555: E / AndroidRuntime (6964): java.lang.NullPointerException 01-14 04: 35: 02.555: E / AndroidRuntime (6964): at com.mrfs.android.surveyapp.adapter.LocationListAdapter.getView (LocationListAdapter.java:91) 01-14 04: 35: 02.555: E / AndroidRuntime (6964): at android.widget.AbsListView .obtainView (AbsListView.java:2445) 01-14 04: 35: 02.555: E / AndroidRuntime (6964): at android.widget.ListView.makeAndAddView (ListView.java:1775) 01-14 04: 35: 02.555: E / AndroidRuntime (6964): at android.widget.ListView.fillDown (ListView.java:678) 01-14 04: 35: 02.555: E / AndroidRuntime (6964): at android.widget.ListView.fillGap (ListView.java: 642) 01-14 04: 35: 02.555: E / AndroidRuntime (6964): with android.widget.AbsListView.trackMotionScroll (AbsListView.java:5525) 01-14 04: 35: 02.555: E / AndroidRuntime (6964): at android.widget.AbsListView.scrollIfNeeded (AbsListView.java:3413) 01-14 04: 35: 02.555: E / AndroidRuntime (6964): at android.widget.AbsListView.onTouchEvent (AbsListView.java:3901) 01-14 04: 35: 02.555: E / AndroidRuntime (6964): at android.view.View.dispatchTouchEvent (View.java:7337) 01-14 04 : 35: 02.555: E / AndroidRuntime (6964): at android.view.ViewGroup.dispatchTransformedTouchEvent (ViewGroup.java:2410) 01-14 04: 35: 02.555: E / AndroidRuntime (6964): at android.view.ViewGroup. dispatchTouchEvent (ViewGroup.java:2145) 01-14 04: 35: 02.555: E / AndroidRuntime (6964): at android.view.ViewGroup.dispatchTransformedTouchEvent (ViewGroup.java:2416) 01-14 04: 35: 02.555: E / AndroidRuntime (6964): at android.view.ViewGroup.dispatchTouchEvent (ViewGroup.java:2159) 01-14 04: 35: 02.555: E / AndroidRuntime (6964): at android.view.ViewGroup.dispatchTransformedTouchEvent (ViewGroup.java:2416 ) 01-14 04: 35: 02.555: E / AndroidRuntime (6964): at android.view.ViewGroup.dispatchTouchEvent (ViewGroup.java:2159) 01-14 04: 35: 02.555: E / AndroidRuntime (6964): at android .view.ViewGroup.dispatchTransformedTouchEvent (ViewGroup.java:24 16) 01-14 04: 35: 02.555: E / AndroidRuntime (6964): at android.view.ViewGroup.dispatchTouchEvent (ViewGroup.java:2159) 01-14 04: 35: 02.555: E / AndroidRuntime (6964): at android.view.ViewGroup.dispatchTransformedTouchEvent (ViewGroup.java:2416) 01-14 04: 35: 02.555: E / AndroidRuntime (6964): at android.view.ViewGroup.dispatchTouchEvent (ViewGroup.java:2159) 01-14 04: 35: 02.555: E / AndroidRuntime (6964): at android.view.ViewGroup.dispatchTransformedTouchEvent (ViewGroup.java:2416) 01-14 04: 35: 02.555: E / AndroidRuntime (6964): at android.view.ViewGroup.dispatchTouchEvent (ViewGroup.java:2159) 01-14 04: 35: 02.555: E / AndroidRuntime (6964): at android.view.ViewGroup.dispatchTransformedTouchEvent (ViewGroup.java:2416) 01-14 04: 35: 02.555: E / AndroidRuntime (6964): at android.view.ViewGroup.dispatchTouchEvent (ViewGroup.java:2159) 01-14 04: 35: 02.555: E / AndroidRuntime (6964): at android.view.ViewGroup.dispatchTransformedTouchEvent (ViewGroup.java:2416) 01-14 04: 35: 02.555: E / AndroidRuntime (6964): a t android.view.ViewGroup.dispatchTouchEvent (ViewGroup.java:2159) 01-14 04: 35: 02.555: E / AndroidRuntime (6964): at com.android.internal.policy.impl.PhoneWindow $ DecorView.superDispatchTouchEvent (PhoneWindow. java: 2115) 01-14 04: 35: 02.555: E / AndroidRuntime (6964): at com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent (PhoneWindow.java:1468) 01-14 04: 35: 02.555: E / AndroidRuntime (6964): at android.app.Activity.dispatchTouchEvent (Activity.java:2487) 01-14 04: 35: 02.555: E / AndroidRuntime (6964): at com.android.internal.policy.impl.PhoneWindow $ DecorView.dispatchTouchEvent (PhoneWindow.java:2063) 01-14 04: 35: 02.555: E / AndroidRuntime (6964): at android.view.View.dispatchPointerEvent (View.java:7520) 01-14 04: 35: 02.555 : E / AndroidRuntime (6964): at android.view.ViewRootImpl.deliverPointerEvent (ViewRootImpl.javahaps376) 01-14 04: 35: 02.555: E / AndroidRuntime (6964): at android.view.ViewRootImpl.deliverInputEvent (ViewRootImpl. java: 3308) 01-14 04: 35: 02.555: E / AndroidRuntime (6964): at android.view.ViewRootImpl.doProcessInputEvents (ViewRootImpl.java:4402) 01-14 04: 35: 02.555: E / AndroidRuntime (6964): at android.view.ViewRootImpl.enqueueInputEvent (ViewRootImpl.java:4380) 01-14 04: 35: 02.555: E / AndroidRuntime (6964): at android.view.ViewRootImpl $ WindowInputEventReceiver.onInputEvent (ViewRootImpl.javarige484) 01-14 04: 35: 02.555: E / AndroidRuntime (6964): at android.view.InputEventReceiver.dispatchInputEvent (InputEventReceiver.java:171) 01-14 04: 35: 02.555: E / AndroidRuntime (6964): at android.view.InputEventReceiver.nativeConsumeBatchedInputEvents (Native Method) 01-14 04: 35: 02.555 : E / AndroidRuntime (6964): with android.view.InputEventReceiver.consumeBatchedInputEvents (InputEventReceiver.java:163) 01-14 04: 35: 02.555: E / AndroidRuntime (6964): at android.view.ViewRootImpl.doConsumeBatchedInput (ViewRootImpl. java: 4452) 01-14 04: 35: 02.555: E / AndroidRuntime (6964): at android.view.ViewRootImpl $ ConsumeBatchedInputRunnable.run (ViewRootImpl.java:4503) 01-1 4 04: 35: 02.555: E / AndroidRuntime (6964): at android.view.Choreographer $ CallbackRecord.run (Choreographer.java:725) 01-14 04: 35: 02.555: E / AndroidRuntime (6964): at android. view.Choreographer.doCallbacks (Choreographer .java: 555) 01-14 04: 35: 02.555: E / AndroidRuntime (6964): at android.view.Choreographer.doFrame (Choreographer .java: 523) 01-14 04: 35: 02.555: E / AndroidRuntime (6964): at android.view.Choreographer $ FrameDisplayEventReceiver.run (Choreographer.java:711) 01-14 04: 35: 02.555: E / AndroidRuntime (6964): at android.os.Handler.handleCallback (Handler.java:615) 01-14 04: 35: 02.555: E / AndroidRuntime (6964): at android.os.Handler.dispatchMessage (Handler.java:92) 01-14 04: 35: 02.555: E / AndroidRuntime (6964): at android.os.Looper.loop (Looper.java:137) 01-14 04: 35: 02.555: E / AndroidRuntime (6964): with android.app.ActivityThread.main (ActivityThread.java:4898) 01-14 04: 35: 02.555: E / AndroidRuntime (6964): at java.lang.reflect.Method.invokeNative (native method ) 01-14 04: 35: 02.555: E / AndroidRuntime (6964): at java.lang.reflect.Method.invoke (Method.javahaps11) 01-14 04: 35: 02.555: E / AndroidRuntime (6964): at com.android.internal.os.ZygoteInit $ MethodAndArgsCaller.run (ZygoteInit.java:1006) 01-14 04: 35: 02.555: E / AndroidRuntime (6964): at com.android.internal.os.ZygoteInit.main ( ZygoteInit.java:773) 01-14 04: 35: 02.555: E / AndroidRuntime (6964): at dalvik.system.NativeStart.main (native method)

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Your exception reads as follows:

  java.lang.ClassCastException: android.widget.LinearLayout cannot be cast to android.widget.TextView 01-14 04:21:29.995: E/AndroidRuntime(3174): at com.mrfs.android.surveyapp.activities.fragments.LocationListFragment$1.onItemClick(LocationListFragment.java:45)

So, I guess this will be the line that throws the Exception. A view is not a TextView, but a linearLayout. Instead, try using view.findViewById (R.id.theTextViewIdFromALayoutFile). And apply it to TextView.

 Toast.makeText(getActivity(), ((TextView) view).getText(), Toast.LENGTH_SHORT).show();
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Source: https://habr.com/ru/post/904365/

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