在android中读取联系人信息的程序,包括读取联系人姓名、手机号码和邮箱
1:androidmanifest.xml的内容
<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="cn.itcast.contacts" android:versionCode="1" android:versionName="1.0"> <application android:icon="@drawable/icon" android:label="@string/app_name"> <uses-library android:name="android.test.runner" /> <activity android:name=".MainActivity" android:label="@string/app_name"> <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> </application> <uses-sdk android:minSdkVersion="8" /> <uses-permission android:name="android.permission.READ_CONTACTS" /> <uses-permission android:name="android.permission.WRITE_CONTACTS" /> <instrumentation android:name="android.test.InstrumentationTestRunner" android:targetPackage="cn.itcast.contacts" android:label="Tests for My App" /> </manifest>
里面重要的是搭建测试环境和添加<uses-permission>,即读取和写入联系人信息的权限
2:读取的主要方法
/* * 读取联系人的信息 */ public void testReadAllContacts() { Cursor cursor = this.getContext().getContentResolver().query(ContactsContract.Contacts.CONTENT_URI, null, null, null, null); int contactIdIndex = 0; int nameIndex = 0; if(cursor.getCount() > 0) { contactIdIndex = cursor.getColumnIndex(ContactsContract.Contacts._ID); nameIndex = cursor.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME); } while(cursor.moveToNext()) { String contactId = cursor.getString(contactIdIndex); String name = cursor.getString(nameIndex); Log.i(TAG, contactId); Log.i(TAG, name); /* * 查找该联系人的phone信息 */ Cursor phones = this.getContext().getContentResolver().query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null, ContactsContract.CommonDataKinds.Phone.CONTACT_ID + "=" + contactId, null, null); int phoneIndex = 0; if(phones.getCount() > 0) { phoneIndex = phones.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER); } while(phones.moveToNext()) { String phoneNumber = phones.getString(phoneIndex); Log.i(TAG, phoneNumber); } /* * 查找该联系人的email信息 */ Cursor emails = this.getContext().getContentResolver().query(ContactsContract.CommonDataKinds.Email.CONTENT_URI, null, ContactsContract.CommonDataKinds.Email.CONTACT_ID + "=" + contactId, null, null); int emailIndex = 0; if(emails.getCount() > 0) { emailIndex = emails.getColumnIndex(ContactsContract.CommonDataKinds.Email.DATA); } while(emails.moveToNext()) { String email = emails.getString(emailIndex); Log.i(TAG, email); } } }
3:目前手机中的联系人信息,有两个联系人的信息,如图所示,
这是Hellen的联系信息
这是Mike的联系信息
4:测试结果,在控制台输出的内容为:
可以看到在控制台输出了两个联系人的信息。
//--------------------------------------
获取所有分组编号和组的名称
Cursor groupInfoCursor = getContentResolver().query(ContactsContract.Groups.CONTENT_URI, null, null, null, null); while(groupInfoCursor.moveToNext()) { int idIndex = groupInfoCursor.getColumnIndex(ContactsContract.Groups._ID); int titleIndex = groupInfoCursor.getColumnIndex(ContactsContract.Groups.TITLE); String id = groupInfoCursor.getString(idIndex); String title = groupInfoCursor.getString(titleIndex); } groupInfoCursor.close();