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我想要我的应用程序中最近使用过的联系人列表。
就像在撰写新消息时有一个最近使用过的联系人列表,我如何访问这些联系人?
最佳答案
试试这段代码:
/*
* Copyright (C) 2006 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 android.provider;
import com.android.internal.telephony.CallerInfo;
import com.android.internal.telephony.Connection;
import android.content.ContentResolver;
import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.net.Uri;
import android.text.TextUtils;
/**
* The CallLog provider contains information about placed and received calls.
*/
public class CallLog {
public static final String AUTHORITY = "call_log";
/**
* The content:// style URL for this provider
*/
public static final Uri CONTENT_URI =
Uri.parse("content://" + AUTHORITY);
/**
* Contains the recent calls.
*/
public static class Calls implements BaseColumns {
/**
* The content:// style URL for this table
*/
public static final Uri CONTENT_URI =
Uri.parse("content://call_log/calls");
/**
* The content:// style URL for filtering this table on phone numbers
*/
public static final Uri CONTENT_FILTER_URI =
Uri.parse("content://call_log/calls/filter");
/**
* The default sort order for this table
*/
public static final String DEFAULT_SORT_ORDER = "date DESC";
/**
* The MIME type of {@link #CONTENT_URI} and {@link #CONTENT_FILTER_URI}
* providing a directory of calls.
*/
public static final String CONTENT_TYPE = "vnd.android.cursor.dir/calls";
/**
* The MIME type of a {@link #CONTENT_URI} sub-directory of a single
* call.
*/
public static final String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/calls";
/**
* The type of the call (incoming, outgoing or missed).
* <P>Type: INTEGER (int)
*/
public static final String TYPE = "type";
public static final int INCOMING_TYPE = 1;
public static final int OUTGOING_TYPE = 2;
public static final int MISSED_TYPE = 3;
/**
* The phone number as the user entered it.
* <P>Type: TEXT
*/
public static final String NUMBER = "number";
/**
* The date the call occured, in milliseconds since the epoch
* <P>Type: INTEGER (long)
*/
public static final String DATE = "date";
/**
* The duration of the call in seconds
* <P>Type: INTEGER (long)
*/
public static final String DURATION = "duration";
/**
* Whether or not the call has been acknowledged
* <P>Type: INTEGER (boolean)
*/
public static final String NEW = "new";
/**
* The cached name associated with the phone number, if it exists.
* This value is not guaranteed to be current, if the contact information
* associated with this number has changed.
* <P>Type: TEXT
*/
public static final String CACHED_NAME = "name";
/**
* The cached number type (Home, Work, etc) associated with the
* phone number, if it exists.
* This value is not guaranteed to be current, if the contact information
* associated with this number has changed.
* <P>Type: INTEGER
*/
public static final String CACHED_NUMBER_TYPE = "numbertype";
/**
* The cached number label, for a custom number type, associated with the
* phone number, if it exists.
* This value is not guaranteed to be current, if the contact information
* associated with this number has changed.
* <P>Type: TEXT
*/
public static final String CACHED_NUMBER_LABEL = "numberlabel";
/**
* Adds a call to the call log.
*
* @param ci the CallerInfo object to get the target contact from. Can be null
* if the contact is unknown.
* @param context the context used to get the ContentResolver
* @param number the phone number to be added to the calls db
* @param presentation the number presenting rules set by the network for
* "allowed", "payphone", "restricted" or "unknown"
* @param callType enumerated values for "incoming", "outgoing", or "missed"
* @param start time stamp for the call in milliseconds
* @param duration call duration in seconds
*
* {@hide}
*/
public static Uri addCall(CallerInfo ci, Context context, String number,
int presentation, int callType, long start, int duration) {
final ContentResolver resolver = context.getContentResolver();
// If this is a private number then set the number to Private, otherwise check
// if the number field is empty and set the number to Unavailable
if (presentation == Connection.PRESENTATION_RESTRICTED) {
number = CallerInfo.PRIVATE_NUMBER;
if (ci != null) ci.name = "";
} else if (presentation == Connection.PRESENTATION_PAYPHONE) {
number = CallerInfo.PAYPHONE_NUMBER;
if (ci != null) ci.name = "";
} else if (TextUtils.isEmpty(number)
|| presentation == Connection.PRESENTATION_UNKNOWN) {
number = CallerInfo.UNKNOWN_NUMBER;
if (ci != null) ci.name = "";
}
ContentValues values = new ContentValues(5);
values.put(NUMBER, number);
values.put(TYPE, Integer.valueOf(callType));
values.put(DATE, Long.valueOf(start));
values.put(DURATION, Long.valueOf(duration));
values.put(NEW, Integer.valueOf(1));
if (ci != null) {
values.put(CACHED_NAME, ci.name);
values.put(CACHED_NUMBER_TYPE, ci.numberType);
values.put(CACHED_NUMBER_LABEL, ci.numberLabel);
}
if ((ci != null) && (ci.person_id > 0)) {
ContactsContract.Contacts.markAsContacted(resolver, ci.person_id);
}
Uri result = resolver.insert(CONTENT_URI, values);
removeExpiredEntries(context);
return result;
}
/**
* Query the call log database for the last dialed number.
* @param context Used to get the content resolver.
* @return The last phone number dialed (outgoing) or an empty
* string if none exist yet.
*/
public static String getLastOutgoingCall(Context context) {
final ContentResolver resolver = context.getContentResolver();
Cursor c = null;
try {
c = resolver.query(
CONTENT_URI,
new String[] {NUMBER},
TYPE + " = " + OUTGOING_TYPE,
null,
DEFAULT_SORT_ORDER + " LIMIT 1");
if (c == null || !c.moveToFirst()) {
return "";
}
return c.getString(0);
} finally {
if (c != null) c.close();
}
}
private static void removeExpiredEntries(Context context) {
final ContentResolver resolver = context.getContentResolver();
resolver.delete(CONTENT_URI, "_id IN " +
"(SELECT _id FROM calls ORDER BY " + DEFAULT_SORT_ORDER
+ " LIMIT -1 OFFSET 500)", null);
}
}
}
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