Add searchContacts.

- Pass a string to `searchContacts` and it will search the Display Name for a partial hit of the search text.
  - For example, if I search “Berg” it will bring up “Tim Bergling”.

Also:
- Increased padding in ExampleApp.
- Added “Search Name in Contacts” to ExampleApp.

Fixes joshuapinter#58.

Author: joshuapinter

ExampleApp/App.js

@@ -12,6 +12,7 @@ import {
   StyleSheet,
   Switch,
   Text,
+  TextInput,
   View
 } from 'react-native';
 
@@ -68,6 +69,11 @@ export default class App extends Component<{}> {
             <Button title="Get Contacts" onPress={ () => this._getContacts() } />
           </View>
 
+          <View style={ styles.button }>
+            <TextInput value={ this.state.searchText } onChangeText={ text => this.setState( { searchText: text } ) } />
+            <Button title="Search Name in Contacts" onPress={ () => this._searchContacts( this.state.searchText ) } />
+          </View>
+
           <FlatList
             style={styles.contacts}
             data={this.state.contacts}
@@ -122,7 +128,19 @@ export default class App extends Component<{}> {
           console.error(error);
         }
         else {
-          // console.log('contacts[0].fullName', contacts[0].fullName);
+          this.setState( { contacts } );
+        }
+      });
+    }
+  }
+
+  _searchContacts( searchText ) {
+    if (this.state.canUserAccessContacts) {
+      Contacts.searchContacts( searchText, (error, contacts) =>  {
+        if (error) {
+          console.error(error);
+        }
+        else {
           this.setState( { contacts } );
         }
       });
@@ -134,7 +152,7 @@ const styles = StyleSheet.create({
   container: {
     flex: 1,
     backgroundColor: '#F5FCFF',
-    paddingTop: 40,
+    padding: 40,
   },
   welcome: {
     fontSize: 20,

README.md

@@ -13,7 +13,7 @@
 |------------------------------------|:---:|:-------:|:-------:| ----- |
 | `getContact`                       | ✅  | 🚫      | 🚫     |       |
 | `getContacts`                      | ✅  | ✅      | 🚫     |       |
-| `searchContacts`                   | ✅  | 🚫      | 🚫     |       |
+| `searchContacts`                   | ✅  | ✅      | 🚫     |       |
 | `addContact`                       | ✅  | 🚫      | 🚫     |       |
 | `updateContact`                    | ✅  | 🚫      | 🚫     |       |
 | `deleteContact`                    | ✅  | 🚫      | 🚫     |       |

android/src/main/java/com/joshuapinter/RNUnifiedContacts/RNUnifiedContactsModule.java

@@ -175,18 +175,28 @@ public void getContacts(final Callback callback) {
     @ReactMethod
     public void searchContacts( String searchText, Callback callback ) {
 
-        // ToDo: Use searchText to filter results
         WritableArray contacts = Arguments.createArray();
 
         contentResolver = getCurrentActivity().getContentResolver();
 
+        String   whereString = null;
+        String[] whereParams = null;
+
+        if ( searchText != null && !searchText.equals( "" ) ) {
+            whereString = "display_name LIKE ?";
+            whereParams = new String[]{ "%" + searchText + "%" };
+        }
+
         Cursor contactCursor = contentResolver.query(
-                ContactsContract.Contacts.CONTENT_URI,
-                null, null, null, null);
+                ContactsContract.Data.CONTENT_URI,
+                null,
+                whereString,
+                whereParams,
+                null );
 
         while( contactCursor.moveToNext() ) {
 
-            int contactId = getIntFromCursor( contactCursor, ContactsContract.Contacts._ID );
+            int contactId = getIntFromCursor( contactCursor, ContactsContract.Data.CONTACT_ID );
 
             WritableMap contact = getContactDetailsFromContactId(contactId);
 
@@ -198,7 +208,6 @@ public void searchContacts( String searchText, Callback callback ) {
         // ToDo: Add check for error and return error callback instead
         // i.e. callback.invoke(error, null)
 
-
         // Success
         callback.invoke(null, contacts);
     }
@@ -299,8 +308,6 @@ private WritableMap getContactDetailsFromContactId(int contactId) {
         String note = getNoteFromContact(contactId);
         contactMap.putString( "note", note );
 
-//        Log.w("Test13", contactMap.toString());
-
         return contactMap;
     }