Not able to see text in ListView

Question

I am using ListActivity to display simple text with SimpleCursorAdapter to get the texts from my database. I have tried to debug the problem and found that the cursor is successfully fetching the result but the text is not displayed in the ListView.

Following is the ListActivity code I am using.

public class MyListActivity extends ListActivity{ Cursor myCursor; @Override protected void onCreate(Bundle savedInstanceState) { // TODO Auto-generated method stub super.onCreate(savedInstanceState); myCursor = getData(); startManagingCursor(myCursor); ListAdapter myAdapter = new SimpleCursorAdapter(this, R.layout.display_details, myCursor, new String[]{MyDbHelper.ID_FIELD, MyDbHelper.NAME_FIELD}, new int[]{R.id.row_id, R.id.row_name}); setListAdapter(myAdapter); } private Cursor getData() { return MyDBHelper.getRoutes(); } @Override protected void onDestroy() { // TODO Auto-generated method stub super.onDestroy(); routesCursor.close(); } }

and following is my xml file for each row in ListView

<?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" > <TextView android:id="@+id/row_id" android:layout_width="wrap_content" android:layout_height="wrap_content" /> <TextView android:id="@+id/row_name" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignBottom="@+id/row_id" android:layout_toRightOf="@+id/row_id" android:textAppearance="?android:attr/textAppearanceLarge" /> </RelativeLayout>

and my layout for ListActivity is as following

<?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" > <ListView android:id="@+id/list" android:layout_width="fill_parent" android:layout_height="fill_parent"> </ListView> </RelativeLayout>

Please provide me the solution. Thanks in advance.

Did you try myAdapter.notifyDataSetChanged() after setListAdapter — An-droid
– An-droid, Commented Jun 18, 2013 at 10:00
which TextView is not showing "row_id" or "row_name" or both? — TheLittleNaruto
– TheLittleNaruto, Commented Aug 17, 2013 at 5:36

halfer · Accepted Answer · 2015-04-05 12:33:26Z

This code can help your problem.

package com.example.getkontakdata; import java.util.ArrayList; import java.util.List; import android.os.Bundle; import android.provider.ContactsContract; import android.app.Activity; import android.content.ContentResolver; import android.content.Context; import android.content.Intent; import android.database.Cursor; import android.util.SparseBooleanArray; import android.view.LayoutInflater; import android.view.View; import android.view.View.OnClickListener; import android.view.ViewGroup; import android.widget.AdapterView; import android.widget.AdapterView.OnItemClickListener; import android.widget.BaseAdapter; import android.widget.Button; import android.widget.CheckBox; import android.widget.CompoundButton; import android.widget.CompoundButton.OnCheckedChangeListener; import android.widget.ListAdapter; import android.widget.ListView; import android.widget.TextView; import android.widget.Toast; public class MainActivity extends Activity implements OnItemClickListener { List<String> name1 = new ArrayList<String>(); List<String> phno1 = new ArrayList<String>(); MyAdapter ma; Button select; CheckBox cb; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); getAllCallLogs(this.getContentResolver()); final ListView lv= (ListView) findViewById(R.id.lv); cb = (CheckBox) findViewById(R.id.checkBox1); ma = new MyAdapter(); lv.setAdapter((ListAdapter) ma); lv.setOnItemClickListener(this); lv.setItemsCanFocus(false); lv.setTextFilterEnabled(true); // adding select = (Button) findViewById(R.id.button1); select.setOnClickListener(new OnClickListener() { @Override public void onClick(View arg0) { // TODO Auto-generated method stub StringBuilder checkedcontacts= new StringBuilder(); System.out.println(".............." + ma.mCheckStates.size()); for(int i = 0; i < phno1.size(); i++) { if(ma.mCheckStates.get(i) == true) { checkedcontacts.append(phno1.get(i).toString()); checkedcontacts.append(";"); } else { System.out.println(".. Not Checked ......" + phno1.get(i).toString()); } } } }); } @Override public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) { // TODO Auto-generated method stub ma.toggle(arg2); } public void getAllCallLogs(ContentResolver cr) { Cursor phones = cr.query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null,null,null, null); while (phones.moveToNext()) { String name=phones.getString (phones.getColumnIndex(ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME)); String phoneNumber = phones.getString (phones.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER)); //System.out.println(".................." + phoneNumber); name1.add(name); phno1.add(phoneNumber); } phones.close(); } class MyAdapter extends BaseAdapter implements CompoundButton.OnCheckedChangeListener { private SparseBooleanArray mCheckStates; //private SparseBooleanArray nCheckStates; LayoutInflater mInflater; TextView tv1,tv; CheckBox cb; MyAdapter() { mCheckStates = new SparseBooleanArray(name1.size()); mCheckStates = new SparseBooleanArray(phno1.size()); mInflater = (LayoutInflater)MainActivity.this.getSystemService(Context.LAYOUT_INFLATER_SERVICE); } public String get(int position) { // TODO Auto-generated method stub return null; } @Override public int getCount() { // TODO Auto-generated method stub return name1.size(); } @Override public Object getItem(int position) { // TODO Auto-generated method stub return position; } @Override public long getItemId(int position) { // TODO Auto-generated method stub return 0; } @Override public View getView(final int position, View convertView, ViewGroup parent) { // TODO Auto-generated method stub View vi=convertView; if(convertView==null) vi = mInflater.inflate(R.layout.row, null); TextView tv= (TextView) vi.findViewById(R.id.textView1); tv1= (TextView) vi.findViewById(R.id.textView2); cb = (CheckBox) vi.findViewById(R.id.checkBox1); tv.setText("Nama : "+ name1.get(position)); tv1.setText("Nomor Kontak : "+ phno1.get(position)); cb.setTag(position); cb.setChecked(mCheckStates.get(position, false)); cb.setOnCheckedChangeListener((OnCheckedChangeListener) this); return vi; } public boolean isChecked(int position) { return mCheckStates.get(position, false); } public void setChecked(int position, boolean isChecked) { mCheckStates.put(position, isChecked); System.out.println("hello..........."); notifyDataSetChanged(); } public void toggle(int position) { setChecked(position, !isChecked(position)); } @Override public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) { // TODO Auto-generated method stub mCheckStates.put((Integer) buttonView.getTag(), isChecked); } } }

Collectives™ on Stack Overflow

Not able to see text in ListView

1 Answer 1

Comments

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Related