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58 lines
2.4 KiB
58 lines
2.4 KiB
import android.content.ContentResolver;
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import android.content.Context;
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import android.database.Cursor;
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import android.provider.ContactsContract;
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import android.telephony.PhoneNumberUtils;
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import android.util.Log;
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import java.util.HashMap;
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// 定义联系人类
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public class Contact {
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private static HashMap<String, String> sContactCache;
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private static final String TAG = "Contact";
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// 定义字符串 CALLER_ID_SELECTION
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private static final String CALLER_ID_SELECTION = "PHONE_NUMBERS_EQUAL(" + ContactsContract.CommonDataKinds.Phone.NUMBER + ",?) AND " + ContactsContract.Data.MIMETYPE + "='" + ContactsContract.CommonDataKinds.Phone.CONTENT_ITEM_TYPE + "'" + " AND " + ContactsContract.Data.RAW_CONTACT_ID + " IN "
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+ "(SELECT raw_contact_id "
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+ " FROM phone_lookup"
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+ " WHERE min_match = '+')";
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// 定义获取联系人的方法
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public static String getContact(Context context, String phoneNumber) {
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if (sContactCache == null) {
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sContactCache = new HashMap<>();
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}
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// 查找 HashMap 中是否已有 phoneNumber 信息
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if (sContactCache.containsKey(phoneNumber)) {
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return sContactCache.get(phoneNumber);
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}
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String selection = CALLER_ID_SELECTION.replace("+",
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PhoneNumberUtils.toCallerIDMinMatch(phoneNumber));
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// 查找数据库中 phoneNumber 的信息
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Cursor cursor = context.getContentResolver().query(
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ContactsContract.Data.CONTENT_URI,
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new String[]{ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME},
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selection,
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new String[]{phoneNumber},
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null);
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// 判定查询结果
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// moveToFirst() 返回第一条
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if (cursor != null && cursor.moveToFirst()) {
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try {
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// 找到相关信息
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String name = cursor.getString(0);
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sContactCache.put(phoneNumber, name);
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return name;
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} catch (IndexOutOfBoundsException e) {
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// 异常
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Log.e(TAG, " Cursor get string error " + e.toString());
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return null;
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} finally {
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cursor.close();
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}
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} else {
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// 未找到相关信息
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Log.d(TAG, "No contact matched with number:" + phoneNumber);
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return null;
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}
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}
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} |