| /* |
| * Copyright (C) 2012 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package com.example.android.basiccontactables; |
| |
| import android.app.Activity; |
| import android.app.LoaderManager; |
| import android.content.Context; |
| import android.content.CursorLoader; |
| import android.content.Loader; |
| import android.database.Cursor; |
| import android.net.Uri; |
| import android.os.Bundle; |
| import android.provider.ContactsContract; |
| import android.provider.ContactsContract.CommonDataKinds; |
| import android.util.Log; |
| import android.widget.TextView; |
| |
| /** |
| * Helper class to handle all the callbacks that occur when interacting with loaders. Most of the |
| * interesting code in this sample app will be in this file. |
| */ |
| public class ContactablesLoaderCallbacks implements LoaderManager.LoaderCallbacks<Cursor> { |
| |
| Context mContext; |
| |
| public static final String QUERY_KEY = "query"; |
| |
| public static final String TAG = "ContactablesLoaderCallbacks"; |
| |
| public ContactablesLoaderCallbacks(Context context) { |
| mContext = context; |
| } |
| |
| @Override |
| public Loader<Cursor> onCreateLoader(int loaderIndex, Bundle args) { |
| // Where the Contactables table excels is matching text queries, |
| // not just data dumps from Contacts db. One search term is used to query |
| // display name, email address and phone number. In this case, the query was extracted |
| // from an incoming intent in the handleIntent() method, via the |
| // intent.getStringExtra() method. |
| |
| // BEGIN_INCLUDE(uri_with_query) |
| String query = args.getString(QUERY_KEY); |
| Uri uri = Uri.withAppendedPath( |
| ContactsContract.CommonDataKinds.Contactables.CONTENT_FILTER_URI, query); |
| // END_INCLUDE(uri_with_query) |
| |
| |
| // BEGIN_INCLUDE(cursor_loader) |
| // Easy way to limit the query to contacts with phone numbers. |
| String selection = |
| ContactsContract.CommonDataKinds.Contactables.HAS_PHONE_NUMBER + " = " + 1; |
| |
| // Sort results such that rows for the same contact stay together. |
| String sortBy = ContactsContract.CommonDataKinds.Contactables.LOOKUP_KEY; |
| |
| return new CursorLoader( |
| mContext, // Context |
| uri, // URI representing the table/resource to be queried |
| null, // projection - the list of columns to return. Null means "all" |
| selection, // selection - Which rows to return (condition rows must match) |
| null, // selection args - can be provided separately and subbed into selection. |
| sortBy); // string specifying sort order |
| // END_INCLUDE(cursor_loader) |
| } |
| |
| @Override |
| public void onLoadFinished(Loader<Cursor> arg0, Cursor cursor) { |
| TextView tv = (TextView) ((Activity)mContext).findViewById(R.id.sample_output); |
| |
| // Reset text in case of a previous query |
| tv.setText(mContext.getText(R.string.intro_message) + "\n\n"); |
| |
| if (cursor.getCount() == 0) { |
| return; |
| } |
| |
| // Pulling the relevant value from the cursor requires knowing the column index to pull |
| // it from. |
| // BEGIN_INCLUDE(get_columns) |
| int phoneColumnIndex = cursor.getColumnIndex(CommonDataKinds.Phone.NUMBER); |
| int emailColumnIndex = cursor.getColumnIndex(CommonDataKinds.Email.ADDRESS); |
| int nameColumnIndex = cursor.getColumnIndex(CommonDataKinds.Contactables.DISPLAY_NAME); |
| int lookupColumnIndex = cursor.getColumnIndex(CommonDataKinds.Contactables.LOOKUP_KEY); |
| int typeColumnIndex = cursor.getColumnIndex(CommonDataKinds.Contactables.MIMETYPE); |
| // END_INCLUDE(get_columns) |
| |
| cursor.moveToFirst(); |
| // Lookup key is the easiest way to verify a row of data is for the same |
| // contact as the previous row. |
| String lookupKey = ""; |
| do { |
| // BEGIN_INCLUDE(lookup_key) |
| String currentLookupKey = cursor.getString(lookupColumnIndex); |
| if (!lookupKey.equals(currentLookupKey)) { |
| String displayName = cursor.getString(nameColumnIndex); |
| tv.append(displayName + "\n"); |
| lookupKey = currentLookupKey; |
| } |
| // END_INCLUDE(lookup_key) |
| |
| // BEGIN_INCLUDE(retrieve_data) |
| // The data type can be determined using the mime type column. |
| String mimeType = cursor.getString(typeColumnIndex); |
| if (mimeType.equals(ContactsContract.CommonDataKinds.Phone.CONTENT_ITEM_TYPE)) { |
| tv.append("\tPhone Number: " + cursor.getString(phoneColumnIndex) + "\n"); |
| } else if (mimeType.equals(ContactsContract.CommonDataKinds.Email.CONTENT_ITEM_TYPE)) { |
| tv.append("\tEmail Address: " + cursor.getString(emailColumnIndex) + "\n"); |
| } |
| // END_INCLUDE(retrieve_data) |
| |
| // Look at DDMS to see all the columns returned by a query to Contactables. |
| // Behold, the firehose! |
| for(String column : cursor.getColumnNames()) { |
| Log.d(TAG, column + column + ": " + |
| cursor.getString(cursor.getColumnIndex(column)) + "\n"); |
| } |
| } while (cursor.moveToNext()); |
| } |
| |
| @Override |
| public void onLoaderReset(Loader<Cursor> cursorLoader) { |
| } |
| } |