You must supply a resource ID for a TextView android error

Question

I try all this day to resolve this error. I don't understand why my logcat prints:

05-06 21:45:59.559: ERROR/ConversationList(9023): We have chats... 05-06 21:45:59.609: ERROR/ConversationList(9023): UpdateList end... 05-06 21:45:59.839: ERROR/ArrayAdapter(9023): You must supply a resource ID for a TextView 05-06 21:45:59.839: DEBUG/AndroidRuntime(9023): Shutting down VM 05-06 21:45:59.839: WARN/dalvikvm(9023): threadid=3: thread exiting with uncaught exception (group=0x4000fe70) 05-06 21:45:59.839: ERROR/AndroidRuntime(9023): Uncaught handler: thread main exiting due to uncaught exception 05-06 21:45:59.879: ERROR/AndroidRuntime(9023): java.lang.IllegalStateException: ArrayAdapter requires the resource ID to be a TextView 05-06 21:45:59.879: ERROR/AndroidRuntime(9023):     at android.widget.ArrayAdapter.createViewFromResource(ArrayAdapter.java:347) 05-06 21:45:59.879: ERROR/AndroidRuntime(9023):     at android.widget.ArrayAdapter.getView(ArrayAdapter.java:323) 05-06 21:45:59.879: ERROR/AndroidRuntime(9023):     at android.widget.AbsListView.obtainView(AbsListView.java:1269) 05-06 21:45:59.879: ERROR/AndroidRuntime(9023):     at android.widget.ListView.makeAndAddView(ListView.java:1623) 05-06 21:45:59.879: ERROR/AndroidRuntime(9023):     at android.widget.ListView.fillDown(ListView.java:607) 05-06 21:45:59.879: ERROR/AndroidRuntime(9023):     at android.widget.ListView.fillFromTop(ListView.java:664) 05-06 21:45:59.879: ERROR/AndroidRuntime(9023):     at android.widget.ListView.layoutChildren(ListView.java:1481) 05-06 21:45:59.879: ERROR/AndroidRuntime(9023):     at android.widget.AbsListView.onLayout(AbsListView.java:1113) 05-06 21:45:59.879: ERROR/AndroidRuntime(9023):     at android.view.View.layout(View.java:6133) 05-06 21:45:59.879: ERROR/AndroidRuntime(9023):     at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1119) 05-06 21:45:59.879: ERROR/AndroidRuntime(9023):     at android.widget.LinearLayout.layoutVertical(LinearLayout.java:998) 05-06 21:45:59.879: ERROR/AndroidRuntime(9023):     at android.widget.LinearLayout.onLayout(LinearLayout.java:918) 05-06 21:45:59.879: ERROR/AndroidRuntime(9023):     at android.view.View.layout(View.java:6133) 05-06 21:45:59.879: ERROR/AndroidRuntime(9023):     at android.widget.FrameLayout.onLayout(FrameLayout.java:333) 05-06 21:45:59.879: ERROR/AndroidRuntime(9023):     at android.view.View.layout(View.java:6133) 05-06 21:45:59.879: ERROR/AndroidRuntime(9023):     at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1119) 05-06 21:45:59.879: ERROR/AndroidRuntime(9023):     at android.widget.LinearLayout.layoutVertical(LinearLayout.java:998) 05-06 21:45:59.879: ERROR/AndroidRuntime(9023):     at android.widget.LinearLayout.onLayout(LinearLayout.java:918) 05-06 21:45:59.879: ERROR/AndroidRuntime(9023):     at android.view.View.layout(View.java:6133) 05-06 21:45:59.879: ERROR/AndroidRuntime(9023):     at android.widget.FrameLayout.onLayout(FrameLayout.java:333) 05-06 21:45:59.879: ERROR/AndroidRuntime(9023):     at android.view.View.layout(View.java:6133) 05-06 21:45:59.879: ERROR/AndroidRuntime(9023):     at android.view.ViewRoot.performTraversals(ViewRoot.java:929) 05-06 21:45:59.879: ERROR/AndroidRuntime(9023):     at android.view.ViewRoot.handleMessage(ViewRoot.java:1482) 05-06 21:45:59.879: ERROR/AndroidRuntime(9023):     at android.os.Handler.dispatchMessage(Handler.java:99) 05-06 21:45:59.879: ERROR/AndroidRuntime(9023):     at android.os.Looper.loop(Looper.java:123) 05-06 21:45:59.879: ERROR/AndroidRuntime(9023):     at android.app.ActivityThread.main(ActivityThread.java:3948) 05-06 21:45:59.879: ERROR/AndroidRuntime(9023):     at java.lang.reflect.Method.invokeNative(Native Method) 05-06 21:45:59.879: ERROR/AndroidRuntime(9023):     at java.lang.reflect.Method.invoke(Method.java:521) 05-06 21:45:59.879: ERROR/AndroidRuntime(9023):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:782) 05-06 21:45:59.879: ERROR/AndroidRuntime(9023):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:540) 05-06 21:45:59.879: ERROR/AndroidRuntime(9023):     at dalvik.system.NativeStart.main(Native Method) 05-06 21:45:59.879: ERROR/AndroidRuntime(9023): Caused by: java.lang.ClassCastException: android.widget.LinearLayout 05-06 21:45:59.879: ERROR/AndroidRuntime(9023):     at android.widget.ArrayAdapter.createViewFromResource(ArrayAdapter.java:340) 05-06 21:45:59.879: ERROR/AndroidRuntime(9023):     ... 30 more

My Java file:

package fshizzle.com;  import java.util.ArrayList;  import android.app.ListActivity; import android.app.NotificationManager; import android.content.BroadcastReceiver; import android.content.Context; import android.content.Intent; import android.content.IntentFilter; import android.database.Cursor; import android.database.sqlite.SQLiteDatabase; import android.os.Bundle; import android.util.Log; import android.view.ContextMenu; import android.view.MenuInflater; import android.view.MenuItem; import android.view.View; import android.widget.AdapterView.AdapterContextMenuInfo; import android.widget.ArrayAdapter; import android.widget.ListAdapter; import android.widget.ListView; import android.widget.TextView; import cz.jabbim.android.data.JabberoidDbConnector; import fshizzle.com.R;  public class ConversationList extends ListActivity {  //  private static final String TAG = "ConversationList.class";     private static final int RESULT_CHAT = 4004;     private static final int RESULT_DIRECTCHAT = 4005;      private static final String TAG = "ConversationList";      private ArrayList<String> chatList = new ArrayList<String>();      private TextView tv;      private String lastJid;     BroadcastReceiver csr;     IntentFilter f;      boolean show = true;      @Override     public void onCreate(Bundle icicle) {         super.onCreate(icicle);          setContentView(R.layout.conversationlist);          tv = (TextView)findViewById(R.id.contactList_NoConversation);          csr =  new BroadcastReceiver() {             @Override             public void onReceive(Context context, Intent intent) {                 getChats();                 updateList(false);             }         };         f = new IntentFilter();         f.addAction("cz.jabbim.android.androidim.NEW_MESSAGE");          registerForContextMenu(getListView());      }      @Override     public void onStart() {         super.onStart();         getChats();         updateList(show);         show = true;         if(getIntent().getBooleanExtra("startChat", false)) {             startChat(getIntent().getStringExtra("jid"));             show = false;         }      }      @Override     public void onResume() {         super.onResume();         cancelNotification();          registerReceiver(csr, f);     }      @Override     public void onPause() {         super.onPause();         unregisterReceiver(csr);      }      @Override     public void onStop() {         super.onStop();      }      @Override     protected void onListItemClick(ListView lv, View v, int pos, long id) {         super.onListItemClick(lv, v, pos, id);         startChat(pos);          }      @Override     public void onCreateContextMenu(ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {         new MenuInflater(getApplication()).inflate(R.menu.conversationlist_context, menu);         AdapterContextMenuInfo acmi = (AdapterContextMenuInfo)menuInfo;         menu.setHeaderTitle("Chat with " + getJid(acmi.position));          super.onCreateContextMenu(menu, v, menuInfo);     }      @Override     public boolean onContextItemSelected(MenuItem item) {         AdapterContextMenuInfo acmi = (AdapterContextMenuInfo) item.getMenuInfo();         switch(item.getItemId()) {         case R.id.menuEnter:             startChat(acmi.position);             return true;         case R.id.menuCloseChat:             closeChat(acmi.position);             return true;         }           return super.onContextItemSelected(item);     }      private int getChats() {         final String[] returnColumns = {                 Constants.TABLE_CONVERSATION_FIELD_ID,                 Constants.TABLE_CONVERSATION_FIELD_CHAT,                 "MIN("+(Constants.TABLE_CONVERSATION_FIELD_DATE)+") as 'firstReceived'",                };          SQLiteDatabase db = new JabberoidDbConnector(this).getWritableDatabase();          Cursor result = db.query(Constants.TABLE_CONVERSATION,                  returnColumns,                  null, //Constants.TABLE_CONVERSATION_FIELD_FROM + "!= 'me'",                  null,                  Constants.TABLE_CONVERSATION_FIELD_CHAT,                  null,                  "firstReceived ASC" );          int count = result.getCount();          chatList.clear();         result.moveToFirst();         while(!result.isAfterLast()) {             chatList.add(result.getString(result.getColumnIndex(Constants.TABLE_CONVERSATION_FIELD_CHAT)));             //chatList.add("[email protected]");             result.moveToNext();         }          result.close();         result = null;         db.close();          return count;     }            private void updateList(boolean startChat) {         if(chatList.size() > 0) {              if(chatList.size()==1 && startChat) {                 startChat(0);             }             Log.e(TAG, "We have chats...");             tv.setVisibility(View.GONE);             getListView().setVisibility(View.VISIBLE);                  ListAdapter adapter = new ArrayAdapter<String>(                     this,                     R.layout.conversation_item,                     chatList                 );             getListView().setAdapter(adapter);              //startChat("[email protected]");          //  startChat(getIntent().getStringExtra("fromUser"));          } else {             Log.e(TAG, "We don't have chats...");             getListView().setVisibility(View.GONE);             tv.setVisibility(View.VISIBLE);             tv.setText(R.string.conversationList_noOpenConversation);         }          // close the database after usage         Log.e(TAG, "UpdateList end...");     }      @Override     public void onActivityResult(int requestCode, int resultCode, Intent data) {         if(requestCode==RESULT_CHAT) {              int chats = getChats();              if(chats==0) {                 finish();             } else if(chats==1) {                 String jid;                  jid = getJid(0);                  if(lastJid.equals(jid)) {                     finish();                        } else {                     show = false;                 }             } else {                 show = false;             }          } else if (requestCode==RESULT_DIRECTCHAT) {             finish();         }     }      private void cancelNotification() {         NotificationManager nm = (NotificationManager)getSystemService(NOTIFICATION_SERVICE);         nm.cancel(Constants.NEW_MESSAGE_NOTIFICATION);     }      private void startChat(int pos) {         String jid = getJid(pos);         lastJid = jid;         finishActivity(RESULT_CHAT);         Intent i = new Intent(this, Conversations.class);         i.putExtra("jid", jid);         startActivityForResult(i, RESULT_CHAT);         setResult(RESULT_OK);         finish();     }      private void startChat(String jid) {         finishActivity(RESULT_DIRECTCHAT);         Intent i = new Intent(this, Conversations.class);         i.putExtra("jid", jid);         startActivityForResult(i, RESULT_DIRECTCHAT);         setResult(RESULT_OK);         finish();     }      private void closeChat(int pos) {         SQLiteDatabase db = new JabberoidDbConnector(this).getWritableDatabase();         db.delete(Constants.TABLE_CONVERSATION,                 Constants.TABLE_CONVERSATION_FIELD_CHAT + " = '" + getJid(pos) + "'",                 null);         db.close();         getChats();         updateList(false);      }      private String getJid(int pos) {         return chatList.get(pos);     }  //  private void handleUpdateList() {  //  }  } ` 

The error is here:

ListAdapter adapter = new ArrayAdapter<String>(         this,         R.layout.conversation_item,         chatList ); getListView().setAdapter(adapter); 

No error when I remove it.

ListAdapter adapter = new ArrayAdapter<String>(         this,         R.layout.conversation_item,         chatList ); getListView().setAdapter(adapter); 

What is the solution please?

conversation_item.xml

<?xml version="1.0" encoding="UTF-8"?>  <LinearLayout        android:layout_width="fill_parent"        android:layout_height="fill_parent"        xmlns:android="http://schemas.android.com/apk/res/android"        android:id="@+id/conversation_item">            <TextView                android:layout_height="wrap_content"                android:id="@+id/conversation_item_name"                android:text="Name Surname"                android:textColor="#ffffff"                android:textStyle="bold"                android:textSize="16dip"                android:layout_width="fill_parent"                android:layout_marginTop="10dip"                android:layout_marginBottom="10dip"                android:layout_marginLeft="10dip">           </TextView>           <TextView                android:layout_height="wrap_content"                android:id="@+id/conversation_item_date"                android:layout_width="fill_parent"                android:text="17.6.2010 15:30">           </TextView>           <TextView                android:layout_height="wrap_content"               android:layout_width="fill_parent"                android:id="@+id/conversation_item_message"                android:text="Just some message..."                android:textColor="#ffffff">           </TextView>    </LinearLayout> 

Answer 1

I'm pretty sure the problem lies in your conversation_item layout. The docs state that you must provide a resource with a single TextView. What does that layout look like?

As an example, this is what the simple_list_item_1 layout looks like, yours should be pretty similar.

<?xml version="1.0" encoding="utf-8"?> <TextView xmlns:android="http://schemas.android.com/apk/res/android"     android:id="@android:id/text1"     android:layout_width="fill_parent"     android:layout_height="wrap_content"     android:textAppearance="?android:attr/textAppearanceLarge"     android:gravity="center_vertical"     android:paddingLeft="6dip"     android:minHeight="?android:attr/listPreferredItemHeight" /> 

EDIT:

I just edited the question so your layout will show. Your layout is indeed wrong, you cannot have the linear layout there if you're using that constructor. You can use the other constructor ( ArrayAdapter(Context context, int resource, int textViewResourceId, T[] objects) ) and provide your custom layout and your TextView's id.

Answer 2

Had the same problem, needed to change the custom adapter from:

  ListAdapter adapter = new ArrayAdapter<String>(             this,             R.layout.conversation_item,             chatList         );     getListView().setAdapter(adapter); 

to:

  ListAdapter adapter = new ArrayAdapter<String>(             this,             R.layout.conversation_item,             R.id.sometextview_from_the_layout,             chatList         );     getListView().setAdapter(adapter); 

I think the selected TextView will be used to generate the rowid, which may explain its need to be unique, but I'm not sure yet.