这可能是一个JAVA问题，但我不知道如何构建它。因此，主持人请在需要时更改标签。
我正在使用以下代码检索联系人信息......
Cursor cur = cr_RC.query(ContactsContract.Contacts.CONTENT_URI, null,
null, null, null);
if (cur.getCount() > 0) {
while (cur.moveToNext()) {
String id = cur.getString(cur
.getColumnIndex(ContactsContract.Contacts._ID));
String name = cur
.getString(cur
.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME));
if (Integer
.parseInt(cur.getString(cur
.getColumnIndex(ContactsContract.Contacts.HAS_PHONE_NUMBER))) > 0) {
Cursor pCur = cr_RC.query(
ContactsContract.CommonDataKinds.Phone.CONTENT_URI,
null,
ContactsContract.CommonDataKinds.Phone.CONTACT_ID
+ " = ?", new String[] { id }, null);
while (pCur.moveToNext()) {
// Do something with phones
}
pCur.close();
}
}
}
我想创建一个类，它包含所有这些值（多个联系人），然后检索它们以将它们存储在数据库中。但是，我不太确定如何写这个课程。有人可以帮我弄这个吗？如何在课堂中存储这些多个联系人？在存储或检索联系人信息的同时，如何区分一个联系人与另一个联系人？
我要存储的东西列表..
名称
所有电话号码
电子邮件ID - 此处不包含在代码中。
联系人的照片 - 此处不包含在代码中。
感谢您的帮助!!!
答案 0 :(得分：2)
这看起来像是一个面向对象编程的问题。
我想你想拥有多个“联系人”，所以你可能在谈论成员变量，而不是（静态）类变量。
您需要创建一个包含存储数据所需的所有memer变量的类。然后编写getter和setter方法，将新数据添加到对象或从对象中获取数据。
您想要的课程可以是这样的：
<强> MyContact.java
public class MyContact {
private String name;
private ArrayList<String> phoneNumbers; // a list for storing multiple numbers
private ArrayList<String> emailIDs;
// storing bitmaps permanently is probably not the best solution
private Bitmap photo; // BE VERY CAREFUL HERE, Bitmaps use lots of memory so only keep them in memory as long as needed
public MyContact() {
phoneNumbers = new ArrayList<String>();
emailIDs = new ArrayList<String>();
}
public void setName(String name) {
this.name = name;
}
public void addPhoneNumer(String number) {
this.phoneNumbers.add(number);
}
public void addEmailID(String number) {
this.emailIDs.add(number);
}
public String getName() {
return name;
}
public String getEmaiIDByIndex(int index) {
return emailIDs.get(index);
}
// and so on...
}
然后，如果您想在班级中保存值：
MyContact c = new MyContact();
c.setName("somename");
c.addPhoneNumber("145325235235");
c.addPhoneNumber("94205325");
c.addEmailID("emailid");
// to get information and store it somewhere else:
YourDatabase.storeValue(c.getName()); // just as an example
答案 1 :(得分：1)
这是我正在使用的完整解决方案
此方法将返回ArrayList＆gt;，每个哈希映射包含您想要的一个联系人的完整信息。
<强>输出
[
{phone=992-561-1618;848-807-4440;,
contactId=1,
photo=android.graphics.Bitmap@44f40aa0,
address=Zalavadia Strret
Manavadar, Gujarat 362630
India,
email=birajzalavadia@gmail.com;biraj@tasolglobal.com;,
name=Biraj Zalavadia
}
]
public static ArrayList<HashMap<String, Object>> getContacts() {
ArrayList<HashMap<String, Object>> contacts = new ArrayList<HashMap<String, Object>>();
final String[] projection = new String[] { RawContacts.CONTACT_ID, RawContacts.DELETED };
@SuppressWarnings("deprecation")
final Cursor rawContacts = mSmartAndroidActivity.managedQuery(RawContacts.CONTENT_URI, projection, null, null, null);
final int contactIdColumnIndex = rawContacts.getColumnIndex(RawContacts.CONTACT_ID);
final int deletedColumnIndex = rawContacts.getColumnIndex(RawContacts.DELETED);
if (rawContacts.moveToFirst()) {
while (!rawContacts.isAfterLast()) {
final int contactId = rawContacts.getInt(contactIdColumnIndex);
final boolean deleted = (rawContacts.getInt(deletedColumnIndex) == 1);
if (!deleted) {
HashMap<String, Object> contactInfo = new HashMap<String, Object>() {
{
put("contactId", "");
put("name", "");
put("email", "");
put("address", "");
put("photo", "");
put("phone", "");
}
};
contactInfo.put("contactId", "" + contactId);
contactInfo.put("name", getName(contactId));
contactInfo.put("email", getEmail(contactId));
contactInfo.put("photo", getPhoto(contactId) != null ? getPhoto(contactId) : "");
contactInfo.put("address", getAddress(contactId));
contactInfo.put("phone", getPhoneNumber(contactId));
contactInfo.put("isChecked", "false");
contacts.add(contactInfo);
}
rawContacts.moveToNext();
}
}
rawContacts.close();
return contacts;
}
getContacts() 方法使用的其他方法。
private static String getName(int contactId) {
String name = "";
final String[] projection = new String[] { Contacts.DISPLAY_NAME };
final Cursor contact = mSmartAndroidActivity.managedQuery(Contacts.CONTENT_URI, projection, Contacts._ID + "=?", new String[] { String.valueOf(contactId) }, null);
if (contact.moveToFirst()) {
name = contact.getString(contact.getColumnIndex(Contacts.DISPLAY_NAME));
contact.close();
}
contact.close();
return name;
}
/**
* This method used to get mail id from contact id.
*
* @param contactId
* represented contact id
* @return represented {@link String}
*/
@SuppressWarnings("deprecation")
private static String getEmail(int contactId) {
String emailStr = "";
final String[] projection = new String[] { Email.DATA, // use
// Email.ADDRESS
// for API-Level
// 11+
Email.TYPE };
final Cursor email = mSmartAndroidActivity.managedQuery(Email.CONTENT_URI, projection, Data.CONTACT_ID + "=?", new String[] { String.valueOf(contactId) }, null);
if (email.moveToFirst()) {
final int contactEmailColumnIndex = email.getColumnIndex(Email.DATA);
while (!email.isAfterLast()) {
emailStr = emailStr + email.getString(contactEmailColumnIndex) + ";";
email.moveToNext();
}
}
email.close();
return emailStr;
}
/**
* This method used to get {@link Bitmap} From contact id.
*
* @param contactId
* represented contact id
* @return represented {@link Bitmap}
*/
@SuppressWarnings("deprecation")
private static Bitmap getPhoto(int contactId) {
Bitmap photo = null;
final String[] projection = new String[] { Contacts.PHOTO_ID };
final Cursor contact = mSmartAndroidActivity.managedQuery(Contacts.CONTENT_URI, projection, Contacts._ID + "=?", new String[] { String.valueOf(contactId) }, null);
if (contact.moveToFirst()) {
final String photoId = contact.getString(contact.getColumnIndex(Contacts.PHOTO_ID));
if (photoId != null) {
photo = getBitmap(photoId);
} else {
photo = null;
}
}
contact.close();
return photo;
}
/**
* This method used to get {@link Bitmap} From photo id.
*
* @param photoId
* represented photo id
* @return represented {@link Bitmap}
*/
@SuppressWarnings("deprecation")
private static Bitmap getBitmap(String photoId) {
final Cursor photo = mSmartAndroidActivity.managedQuery(Data.CONTENT_URI, new String[] { Photo.PHOTO }, Data._ID + "=?", new String[] { photoId }, null);
final Bitmap photoBitmap;
if (photo.moveToFirst()) {
byte[] photoBlob = photo.getBlob(photo.getColumnIndex(Photo.PHOTO));
photoBitmap = BitmapFactory.decodeByteArray(photoBlob, 0, photoBlob.length);
} else {
photoBitmap = null;
}
photo.close();
return photoBitmap;
}
/**
* This method used to get address from contact id.
*
* @param contactId
* represented contact id
* @return represented {@link String}
*/
@SuppressWarnings("deprecation")
private static String getAddress(int contactId) {
String postalData = "";
String addrWhere = ContactsContract.Data.CONTACT_ID + " = ? AND " + ContactsContract.Data.MIMETYPE + " = ?";
String[] addrWhereParams = new String[] { String.valueOf(contactId), ContactsContract.CommonDataKinds.StructuredPostal.CONTENT_ITEM_TYPE };
Cursor addrCur = mSmartAndroidActivity.managedQuery(ContactsContract.Data.CONTENT_URI, null, addrWhere, addrWhereParams, null);
if (addrCur.moveToFirst()) {
postalData = addrCur.getString(addrCur.getColumnIndex(ContactsContract.CommonDataKinds.StructuredPostal.FORMATTED_ADDRESS));
}
addrCur.close();
return postalData;
}
/**
* This method used to get phone number from contact id.
*
* @param contactId
* represented contact id
* @return represented {@link String}
*/
@SuppressWarnings("deprecation")
private static String getPhoneNumber(int contactId) {
String phoneNumber = "";
final String[] projection = new String[] { Phone.NUMBER, Phone.TYPE, };
final Cursor phone = mSmartAndroidActivity.managedQuery(Phone.CONTENT_URI, projection, Data.CONTACT_ID + "=?", new String[] { String.valueOf(contactId) }, null);
if (phone.moveToFirst()) {
final int contactNumberColumnIndex = phone.getColumnIndex(Phone.DATA);
while (!phone.isAfterLast()) {
phoneNumber = phoneNumber + phone.getString(contactNumberColumnIndex) + ";";
phone.moveToNext();
}
}
phone.close();
return phoneNumber;
}
答案 2 :(得分：0)
您可以创建pojo联系人类。名称和数字示例：
public class Contact {
private String name;
private List<String> numbers;
getName(){
return name;
}
setName(String name) {
this.name = name;
}
getNumbers(){
return numbers;
}
setNumbers(List<String> numbers) {
this.numbers= numbers;
}
}