Whitelist update

src/app/src/main/java/com/xfarrow/locatemydevice/WhitelistContactsActivity.java

@@ -10,6 +10,8 @@ import android.os.Bundle;
 import android.provider.ContactsContract;
 import android.view.Menu;
 import android.view.MenuItem;
+import android.view.View;
+import android.widget.AdapterView;
 import android.widget.ArrayAdapter;
 import android.widget.ListView;
 import android.widget.Toast;
@@ -18,10 +20,12 @@ import java.util.ArrayList;
 
 public class WhitelistContactsActivity extends AppCompatActivity {
 
-    ListView contactsListView;
+    private ListView contactsListView;
-    ArrayList<String> contacts;
+    private ArrayList<String> contacts;
-    ArrayAdapter<String> listviewAdapter;
+    private ArrayAdapter<String> listviewAdapter;
-    WhitelistDbHandler whitelistDbHandler = new WhitelistDbHandler(this);
+    private WhitelistDbHandler whitelistDbHandler = new WhitelistDbHandler(this);
+
+    private static final int CONTACT_PICK_CODE = 123;
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
@@ -29,6 +33,7 @@ public class WhitelistContactsActivity extends AppCompatActivity {
         setContentView(R.layout.activity_whitelist_contacts);
         setTitle("Whitelist");
         setViews();
+        setListeners();
 
         contacts = whitelistDbHandler.getAllContacts();
         listviewAdapter = new ArrayAdapter<String>(this,
@@ -41,6 +46,27 @@ public class WhitelistContactsActivity extends AppCompatActivity {
         contactsListView = findViewById(R.id.ContactsListView);
     }
 
+    private void setListeners(){
+        contactsListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
+            @Override
+            public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
+                Toast.makeText(WhitelistContactsActivity.this, "Long click to delete", Toast.LENGTH_SHORT).show();
+            }
+        });
+
+        contactsListView.setOnItemLongClickListener(new AdapterView.OnItemLongClickListener() {
+            @Override
+            public boolean onItemLongClick(AdapterView<?> adapterView, View view, int i, long l) {
+                String number = (String)adapterView.getItemAtPosition(i);
+                contacts.remove(number);
+                listviewAdapter.notifyDataSetChanged();
+                whitelistDbHandler.deleteContact(number);
+                return true;
+            }
+        });
+
+    }
+
     // Add "add" button on the top
     @Override
     public boolean onCreateOptionsMenu(Menu menu) {
@@ -54,9 +80,9 @@ public class WhitelistContactsActivity extends AppCompatActivity {
         int id = item.getItemId();
 
         if (id == R.id.add_button) {
-            Intent pickContact = new Intent(Intent.ACTION_PICK, ContactsContract.Contacts.CONTENT_URI);
+            Intent pickContact = new Intent(Intent.ACTION_PICK);
             pickContact.setType(ContactsContract.CommonDataKinds.Phone.CONTENT_TYPE);
-            startActivityForResult(pickContact, 123);
+            startActivityForResult(pickContact, CONTACT_PICK_CODE);
         }
         return super.onOptionsItemSelected(item);
     }
@@ -70,20 +96,24 @@ public class WhitelistContactsActivity extends AppCompatActivity {
             Cursor c = getContentResolver().query(contactData, null, null, null, null);
             if (c.moveToFirst()) {
                 int phoneIndex = c.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER);
-                String number = c.getString(phoneIndex).trim().replace("\\s+", "");
+                int contactNameIndex = c.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME);
+                String number = c.getString(phoneIndex);
+                String contactName = c.getString(contactNameIndex);
                 contactSelected(number);
             }
             c.close();
         }
     }
 
-    private void contactSelected(String number){
+    private void contactSelected(String phoneNo){
-        if(whitelistDbHandler.isContactPresent(number)){
+        // We'll replace parenthesis, dashes and whitespaces to obtain a valid phone number
+        phoneNo = phoneNo.replaceAll("[-()\\s]", "");
+        if(whitelistDbHandler.isContactPresent(phoneNo)){
             Toast.makeText(this, "Contact already in the list", Toast.LENGTH_SHORT).show();
             return;
         }
-        whitelistDbHandler.addContact(number);
+        whitelistDbHandler.addContact(phoneNo);
-        contacts.add(number);
+        contacts.add(phoneNo);
         listviewAdapter.notifyDataSetChanged();
     }
 }

src/app/src/main/java/com/xfarrow/locatemydevice/WhitelistDbHandler.java

@@ -49,7 +49,7 @@ public class WhitelistDbHandler extends SQLiteOpenHelper {
     // Deleting single contact
     public void deleteContact(String phoneNo) {
         SQLiteDatabase db = this.getWritableDatabase();
-        db.delete(TABLE_CONTACTS, KEY_ID + " = ?", new String[] { phoneNo });
+        db.delete(TABLE_CONTACTS, KEY_PH_NO + " = ?", new String[] { phoneNo });
         db.close();
     }