读取联系人内容

    private void readContacts() {
        final String name = "vnd.android.cursor.item/name";
        final String phone_v2 = "vnd.android.cursor.item/phone_v2";
        ContentResolver resolver = getContentResolver();
        Uri uri = Uri.parse("content://com.android.contacts/raw_contacts");
        Cursor cursor = resolver.query(uri, null, null, null, null);
        Uri dataUri = Uri.parse("content://com.android.contacts/data");
        while (cursor.moveToNext()) {
            String id = cursor.getString(cursor.getColumnIndex("contact_id"));
            if (id != null) {
                Cursor dataCursor = resolver.query(dataUri, null,
                        "raw_contact_id=?", new String[]{id}, null);
                Contacts contacts = new Contacts();
                contacts.setId(id);
                while (dataCursor.moveToNext()) {
                    String data1 = dataCursor.getString(dataCursor
                            .getColumnIndex("data1"));
                    String mimetype = dataCursor.getString(dataCursor
                            .getColumnIndex("mimetype"));
                    switch (mimetype) {
                        case name:
                            contacts.setName(data1);
                            break;
                        case phone_v2:
                            contacts.setPhone(data1);
                            break;
                    }
                }
                System.out.println(contacts);
            }
        }
    }

<uses-permission android:name="android.permission.READ_CONTACTS" />