如何在查询 Android ContactsContract.Contacts 的所有联系人的许多数据时提高性能？
How to improve performance when query many data on ALL contacts from Android ContactsContract.Contacts?
OBJECTIVE
我想为用户phone中的每个联系人获取以下数据
StructuredName.GIVEN_NAME|Phone.NUMBER|Email.DATA|StructuredPostal.CITY
我很确定我使用纯 SQL 查询查询 ContactsContract.Data table，但没有关于如何执行此操作的明确文档。
好像可以inject SQL in the contentResolver.query，但好像不可持续。
问题
我以后的代码可以完美运行，但速度很慢。
基本上，
- 我通过它从 ContactsContract.Contacts 和 LOOP 获取所有联系人的 ID，对于每个联系人，
- SELECT CommonDataKinds.StructuredName、
上的命名数据
- SELECT 和 LOOP phone 数据 CommonDataKinds.Phone,
- SELECT 和 LOOP 电子邮件数据 CommonDataKinds.Email,
- SELECT 和 LOOP 地址数据 CommonDataKinds.StructuredPostal
然而，许多循环在性能方面显然适得其反。
对于 1000 个联系人，它会进行大约 3000 个查询。
代码
// CREATE Content resolver
val resolver: ContentResolver = contentResolver
val cursor = resolver.query(
ContactsContract.Contacts.CONTENT_URI,
arrayOf(
ContactsContract.Contacts._ID
),
null,
null,
null
)
if ( cursor != null && cursor.count > 0) {
// PROGRESSBAR Process
myProgressBar?.progress = 0
myProgressBarCircleText?.text = getString(R.string.processing_contacts)
myProgressBar?.visibility = View.VISIBLE
myProgressBarCircle?.visibility = View.VISIBLE
myProgressBarCircleText?.visibility = View.VISIBLE
// PUT BASIC REQUIRED INFO
val jsonAllContacts = JSONObject()
jsonAllContacts.put("source", "2")
// EXECUTE CODE on another thread to prevent blocking UI
Thread(Runnable {
var cursorPosition = 0
var currentProgress: Int
Log.e("JSON", "cursor.count: ${cursor.count}")
// CODE TO EXEC LOOP
while (cursor.moveToNext()) {
// Increment cursor for progressBar
cursorPosition += 1
currentProgress = ((cursorPosition.toFloat() / cursor.count.toFloat()) * 100).toInt()
// INIT of jsonObjects
val jsonEmail = JSONObject()
val jsonPhone = JSONObject()
val jsonAddress = JSONObject()
val jsonCurrentContact = JSONObject()
/**
* NAME DETAILS
*/
val contactID = cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts._ID))
val nameCur = contentResolver.query(
ContactsContract.Data.CONTENT_URI,
arrayOf(
ContactsContract.CommonDataKinds.StructuredName.GIVEN_NAME,
ContactsContract.CommonDataKinds.StructuredName.FAMILY_NAME,
ContactsContract.CommonDataKinds.StructuredName.MIDDLE_NAME
),
ContactsContract.Data.CONTACT_ID + " = ?" + " AND " + ContactsContract.Data.MIMETYPE + " = ?",
arrayOf(
contactID,
ContactsContract.CommonDataKinds.StructuredName.CONTENT_ITEM_TYPE
),
null
)
var givenName = ""
var familyName: String
var middleName: String
var fullName = ""
if ( nameCur != null ) {
while (nameCur.moveToNext()) {
givenName = nameCur.getString(nameCur.getColumnIndex(ContactsContract.CommonDataKinds.StructuredName.GIVEN_NAME)) ?: ""
middleName = nameCur.getString(nameCur.getColumnIndex(ContactsContract.CommonDataKinds.StructuredName.MIDDLE_NAME)) ?: ""
familyName = nameCur.getString(nameCur.getColumnIndex(ContactsContract.CommonDataKinds.StructuredName.FAMILY_NAME)) ?: ""
fullName = if ( middleName != "" && (middleName != familyName) ) {
"$middleName $familyName"
} else {
familyName
}
}
jsonCurrentContact.put("given", givenName)
jsonCurrentContact.put("family", fullName)
}
nameCur?.close()
/**
* PHONE NUMBER
*/
val phoneCur = contentResolver.query(
ContactsContract.CommonDataKinds.Phone.CONTENT_URI,
arrayOf(
ContactsContract.CommonDataKinds.Phone.TYPE,
ContactsContract.CommonDataKinds.Phone.LABEL,
ContactsContract.CommonDataKinds.Phone.NUMBER
),
ContactsContract.CommonDataKinds.Phone.CONTACT_ID + "=?",
arrayOf( contactID ),
null
)
if ( phoneCur != null && phoneCur.count > 0 ) {
while (phoneCur.moveToNext()) {
val phoneNumType = phoneCur.getString( phoneCur.getColumnIndex(ContactsContract.CommonDataKinds.Phone.TYPE) ) ?: ""
val phoneNumLabel = phoneCur.getString( phoneCur.getColumnIndex(ContactsContract.CommonDataKinds.Phone.LABEL) ) ?: ""
var label: String
val phoneNumber = phoneCur.getString( phoneCur.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER) ).replace(" ", "") ?: ""
//Log.e("JSON", "JSON phoneNum: $phoneNumLabel $phoneNumber")
// TRY to get label info
label = if ( phoneNumType == "" ) {
phoneNumLabel
} else {
phoneNumType
}
jsonPhone.put("label", label)
jsonPhone.put("number", phoneNumber)
jsonCurrentContact.accumulate("phone", jsonPhone)
}
}
phoneCur?.close()
/**
* EMAIL
*/
val emailCur = contentResolver.query(
ContactsContract.CommonDataKinds.Email.CONTENT_URI,
arrayOf(
ContactsContract.CommonDataKinds.Email.LABEL,
ContactsContract.CommonDataKinds.Email.DATA
),
ContactsContract.CommonDataKinds.Email.CONTACT_ID + "=?",
arrayOf(contactID),
null
)
if ( emailCur != null ) {
while (emailCur.moveToNext()) {
val emailLabel = emailCur.getString(emailCur.getColumnIndex(ContactsContract.CommonDataKinds.Email.LABEL)) ?: ""
val email = emailCur.getString(emailCur.getColumnIndex(ContactsContract.CommonDataKinds.Email.DATA)) ?: ""
jsonEmail.put("label", emailLabel)
jsonEmail.put("email", email)
jsonCurrentContact.accumulate("email", jsonEmail)
}
}
emailCur?.close()
/**
* ADDRESS
*/
var street: String
var city: String
var postalCode: String
var state: String
var country: String
var label: String
val addressCur = contentResolver.query(
ContactsContract.CommonDataKinds.StructuredPostal.CONTENT_URI,
arrayOf(
ContactsContract.CommonDataKinds.StructuredPostal.TYPE,
ContactsContract.CommonDataKinds.StructuredPostal.STREET,
ContactsContract.CommonDataKinds.StructuredPostal.CITY,
ContactsContract.CommonDataKinds.StructuredPostal.POSTCODE,
ContactsContract.CommonDataKinds.StructuredPostal.REGION,
ContactsContract.CommonDataKinds.StructuredPostal.COUNTRY
),
ContactsContract.CommonDataKinds.StructuredPostal.CONTACT_ID + "=" + contactID,
null,
null
)
if ( addressCur != null ) {
while (addressCur.moveToNext()) {
label = addressCur.getString(addressCur.getColumnIndex(ContactsContract.CommonDataKinds.StructuredPostal.TYPE)) ?: ""
street = addressCur.getString(addressCur.getColumnIndex(ContactsContract.CommonDataKinds.StructuredPostal.STREET)) ?: ""
city = addressCur.getString(addressCur.getColumnIndex(ContactsContract.CommonDataKinds.StructuredPostal.CITY)) ?: ""
postalCode = addressCur.getString(addressCur.getColumnIndex(ContactsContract.CommonDataKinds.StructuredPostal.POSTCODE)) ?: ""
state = addressCur.getString(addressCur.getColumnIndex(ContactsContract.CommonDataKinds.StructuredPostal.REGION)) ?: ""
country = addressCur.getString(addressCur.getColumnIndex(ContactsContract.CommonDataKinds.StructuredPostal.COUNTRY)) ?: ""
jsonAddress.put("label", label)
jsonAddress.put("street", street)
jsonAddress.put("city", city)
jsonAddress.put("postalcode", postalCode)
jsonAddress.put("state", state)
jsonAddress.put("country", country)
jsonCurrentContact.accumulate("address", jsonAddress)
}
}
addressCur?.close()
Log.e("", "jsonCurrentContact: $jsonCurrentContact")
// PUT the current JSON object info into an array
jsonAllContacts.accumulate("contacts", jsonCurrentContact)
}
cursor.close()
}).start()
} else {
cursor?.close()
}
您提到的 3000 个查询可以减少到一个，而且应该会很快完成。
我们将在改进代码时利用两件事：
- 存储在
ContactsContract.CommonDataKinds.XXX table 中的所有数据实际上存储在一个名为 Data. 的大 table 中
- ContactsContract 中有一个隐式连接，允许我们在查询
Data 时从 ContactsContract.Contacts 中获取 select 列
为了简化代码，我建议您定义一个 Contact 对象来存储我们为单个联系人找到的信息，并使用 HashMap 将联系人 ID 映射到 Contact 对象
在此处阅读更多相关信息：https://developer.android.com/reference/android/provider/ContactsContract.Data.html
这里有一些代码可以帮助您入门：
Map<Long, Contact> contacts = new HashMap<>();
// If you need item type / label, add Data.DATA2 & Data.DATA3 to the projection
String[] projection = {Data.CONTACT_ID, Data.DISPLAY_NAME, Data.MIMETYPE, Data.DATA1};
// Add more types to the selection if needed, e.g. StructuredName
String selection = Data.MIMETYPE + " IN ('" + Phone.CONTENT_ITEM_TYPE + "', '" + Email.CONTENT_ITEM_TYPE + "', '" + StructuredPostal.CONTENT_ITEM_TYPE + "')";
Cursor cur = cr.query(Data.CONTENT_URI, projection, selection, null, null);
// Loop through the data
while (cur.moveToNext()) {
long id = cur.getLong(0);
String name = cur.getString(1);
String mime = cur.getString(2); // email / phone / postal
String data = cur.getString(3); // the actual info, e.g. +1-212-555-1234
// get the Contact class from the HashMap, or create a new one and add it to the Hash
Contact contact;
if (contacts.containsKey(id)) {
contact = contacts.get(id);
} else {
contact = new Contact(id);
contact.setDisplayName(name);
// start with empty Sets for phones and emails
// instead of HashSets you can use some object to retain more info about the data item (e.g. label)
contact.setPhoneNumbers(new HashSet<>());
contact.setEmails(new HashSet<>());
contact.setAddresses(new HashSet<>());
contacts.put(id, contact);
}
switch (mime) {
case Phone.CONTENT_ITEM_TYPE:
contact.getPhoneNumbers().add(data);
break;
case Email.CONTENT_ITEM_TYPE:
contact.getEmails().add(data);
break;
case StructuredPostal.CONTENT_ITEM_TYPE:
contact.getAddresses().add(data);
break;
}
}
cur.close();
跟进
成绩进步很大！
现在这里有一些小的调整，可以使您的新代码更进一步：
- 尽量避免排序，为排序传递 null，并调整代码以按数据出现的任何顺序处理数据，SQLite 排序有时会显着降低查询速度
- 将你的投影减少到你真正需要的字段，你放在投影上的东西越多，需要在设备上的进程之间转移的数据就越大，这会导致更多的块，每个块中的行更少
- 不要
getString 投影中的所有字段，如果某些字段仅由 StructuredPostal 使用，则只读取 StructuredPostal 行而不是每次迭代。
在评论中报告您使用上述技巧取得的成果...
这是我的 Kotlin 代码，基于 @marmor 答案的逻辑。
此优化代码在 500 毫秒内检索三星 S7 中的 1500 个联系人，而不是问题代码 中的 3 分钟。
为了完整起见，我将把数据聚合到 JSON 对象中的那段代码和 运行 进程的所有细节留在单独的线程中。
Thread(Runnable {
val resolver: ContentResolver = contentResolver
var jsonToSend = JSONObject()
var jsonAllContacts = JSONObject()
val jsonName = JSONObject()
val jsonEmail = JSONObject()
val jsonPhone = JSONObject()
val jsonAddress = JSONObject()
var cursorPosition = 0
var currentProgress: Int
val projection = arrayOf(
ContactsContract.Data.CONTACT_ID,
ContactsContract.Data.DISPLAY_NAME,
ContactsContract.Data.MIMETYPE,
ContactsContract.Data.DATA1,
ContactsContract.Data.DATA2,
ContactsContract.Data.DATA3,
ContactsContract.Data.DATA4,
ContactsContract.Data.DATA5,
ContactsContract.Data.DATA6,
ContactsContract.Data.DATA7,
ContactsContract.Data.DATA8,
ContactsContract.Data.DATA9,
ContactsContract.Data.DATA10,
ContactsContract.Data.DATA11,
ContactsContract.Data.DATA12,
ContactsContract.Data.DATA13,
ContactsContract.Data.DATA14
)
val selection = ContactsContract.Data.MIMETYPE + " IN ('" + ContactsContract.CommonDataKinds.StructuredName.CONTENT_ITEM_TYPE + "', '" + ContactsContract.CommonDataKinds.Phone.CONTENT_ITEM_TYPE + "', '" + ContactsContract.CommonDataKinds.Email.CONTENT_ITEM_TYPE + "', '" + ContactsContract.CommonDataKinds.StructuredPostal.CONTENT_ITEM_TYPE + "')"
val order = "CASE WHEN " + ContactsContract.Data.MIMETYPE + " = '" + ContactsContract.CommonDataKinds.StructuredName.CONTENT_ITEM_TYPE + "' THEN 0 ELSE 1 END ASC, '" + ContactsContract.Data.CONTACT_ID + "'"
val cursor = resolver.query(
ContactsContract.Data.CONTENT_URI,
projection,
selection,
null,
order
)
Log.e("cursor", "cursor STARTED")
if (cursor != null) {
while (cursor.moveToNext())
{
cursorPosition++
currentProgress = ((cursorPosition.toFloat() / cursor.count.toFloat()) * 100).toInt()
// SELECT the data needed from the standardized table
val id = cursor.getLong(0).toString()
val name = cursor.getString(1)
val mime = cursor.getString(2) // email / phone / postal
val data1 = cursor.getString(3) // the actual info, e.g. +1-212-555-1234
val data2 = cursor.getString(4)
val data3 = cursor.getString(5)
val data4 = cursor.getString(6)
val data5 = cursor.getString(7)
val data6 = cursor.getString(8)
val data7 = cursor.getString(9)
val data8 = cursor.getString(10)
val data9 = cursor.getString(11)
val data10 = cursor.getString(12)
val data11 = cursor.getString(13)
val data12 = cursor.getString(14)
val data13 = cursor.getString(15)
val data14 = cursor.getString(16)
// get the Contact class from the HashMap, or create a new one and add it to the Hash
when (mime) {
ContactsContract.CommonDataKinds.StructuredName.CONTENT_ITEM_TYPE -> {
/**
* Type Alias Data column
* String DISPLAY_NAME DATA1
* String GIVEN_NAME DATA2
* String FAMILY_NAME DATA3
* String PREFIX DATA4 Common prefixes in English names are "Mr", "Ms", "Dr" etc.
* String MIDDLE_NAME DATA5
* String SUFFIX DATA6 Common suffixes in English names are "Sr", "Jr", "III" etc.
* String PHONETIC_GIVEN_NAME DATA7 Used for phonetic spelling of the name, e.g. Pinyin, Katakana, Hiragana
* String PHONETIC_MIDDLE_NAME DATA8
* String PHONETIC_FAMILY_NAME DATA9
*/
//Log.e("contact", "Name-- name:$name -- id:$id == 1:$data1 // 2:$data2 // 3:$data3 // 4: $data4 // 5:$data5 // 6:$data6 // 7:$data7 // 8:$data8 // 9:$data9 // 10:$data10 // 11:$data11 // 12:$data12 // 13:$data13 // 14:$data14")
val currentJSON = JSONObject()
val fullName = if ( data5 != null && (data5 != data3) ) {
"$data5 $data3"
} else {
data3 ?: data1 // PUT data1 as last resort because a contact with no names inputted will return something else (e.g. email address)
}
currentJSON.put("given", data2)
currentJSON.put("family", fullName)
jsonName.put( id, currentJSON)
}
ContactsContract.CommonDataKinds.Email.CONTENT_ITEM_TYPE -> {
/**
* IMPROVE - check that valueForJSON / data1 is a properly formatted email. It sometimes saves in the email the name of the person instead of the email.
* e.g. "aze qsd" instead of "aze.qsd@gmail.com"
*/
//Log.e("contact", "Email-- name:$name -- id:$id == 1:$data1 // 2:$data2 // 3:$data3 // 4: $data4 // 5:$data5 // 6:$data6 // 7:$data7 // 8:$data8 // 9:$data9 // 10:$data10 // 11:$data11 // 12:$data12 // 13:$data13 // 14:$data14")
val valueForJSON = data1
if ( jsonEmail.has(id) ) {
val indexString = jsonEmail[id].toString()
val indexArray = JSONObject(indexString)
if ( !indexArray.has(valueForJSON) ) {
jsonEmail.put( id, indexArray.put( valueForJSON, data2 ) )
}
} else {
jsonEmail.put( id, JSONObject().put( valueForJSON, data2 ) )
}
}
ContactsContract.CommonDataKinds.Phone.CONTENT_ITEM_TYPE -> {
/**
* Type Alias Data column
String NUMBER ContactsContract.DataColumns.DATA1
int ContactsContract.CommonDataKinds.CommonColumns.TYPE ContactsContract.DataColumns.DATA2 Allowed values are:
ContactsContract.CommonDataKinds.BaseTypes.TYPE_CUSTOM. Put the actual type in ContactsContract.CommonDataKinds.CommonColumns.LABEL.
TYPE_HOME
TYPE_MOBILE
TYPE_WORK
etc..
String ContactsContract.CommonDataKinds.CommonColumns.LABEL ContactsContract.DataColumns.DATA3
String ContactsContract.CommonDataKinds.CommonColumns.NORMALIZED_NUMBER ContactsContract.DataColumns.DATA4
*/
//Log.e("contact", "Phone-- name:$name -- id:$id == 1:$data1 // 2:$data2 // 3:$data3 // 4: $data4 // 5:$data5 // 6:$data6 // 7:$data7 // 8:$data8 // 9:$data9 // 10:$data10 // 11:$data11 // 12:$data12 // 13:$data13 // 14:$data14")
val valueForJSON = data4 ?: data1
if ( jsonPhone.has(id) ) {
val indexString = jsonPhone[id].toString()
val indexArray = JSONObject(indexString)
if ( !indexArray.has(valueForJSON) ) {
jsonPhone.put( id, indexArray.put( valueForJSON, data2 ) )
}
} else {
jsonPhone.put( id, JSONObject().put( valueForJSON, data2 ) )
}
}
ContactsContract.CommonDataKinds.StructuredPostal.CONTENT_ITEM_TYPE -> {
/**
* Type Alias Data column
String FORMATTED_ADDRESS ContactsContract.DataColumns.DATA1
int ContactsContract.CommonDataKinds.CommonColumns.TYPE ContactsContract.DataColumns.DATA2 Allowed values are:
ContactsContract.CommonDataKinds.BaseTypes.TYPE_CUSTOM. Put the actual type in ContactsContract.CommonDataKinds.CommonColumns.LABEL.
TYPE_HOME
TYPE_WORK
TYPE_OTHER
String ContactsContract.CommonDataKinds.CommonColumns.LABEL ContactsContract.DataColumns.DATA3
String STREET ContactsContract.DataColumns.DATA4
String POBOX ContactsContract.DataColumns.DATA5 Post Office Box number
String NEIGHBORHOOD ContactsContract.DataColumns.DATA6
String CITY ContactsContract.DataColumns.DATA7
String REGION ContactsContract.DataColumns.DATA8
String POSTCODE ContactsContract.DataColumns.DATA9
String COUNTRY ContactsContract.DataColumns.DATA10
*/
//Log.e("contact", "Address-- name:$name -- id:$id == 1:$data1 // 2:$data2 // 3:$data3 // 4: $data4 // 5:$data5 // 6:$data6 // 7:$data7 // 8:$data8 // 9:$data9 // 10:$data10 // 11:$data11 // 12:$data12 // 13:$data13 // 14:$data14")
val currentJSON = JSONObject()
val valueForJSON = data1
currentJSON.put("street", data4)
currentJSON.put("city", data7)
currentJSON.put("postcode", data9)
currentJSON.put("state", data8)
currentJSON.put("country", data10)
if ( jsonAddress.has(id) ) {
val indexString = jsonAddress[id].toString()
val indexArray = JSONObject(indexString)
if ( !indexArray.has(valueForJSON) ) {
jsonAddress.put( id, indexArray.put( valueForJSON, currentJSON ) )
}
} else {
jsonAddress.put( id, JSONObject().put( valueForJSON, currentJSON ) )
}
}
}
runOnUiThread {
//PROGRESS HERE
//myProgressBar?.visibility = View.VISIBLE
myProgressBar?.progress = currentProgress
}
}
}
cursor?.close()
// PUT some data to the first level of the nested JSON object
jsonToSend.put("source", "2")
/**
* ADD the type of contact info to the main jsonAllContacts Object
*/
jsonAllContacts = addNameToCurrentObject(jsonAllContacts, jsonName)
jsonAllContacts = addNewKeyToCurrentObject(jsonAllContacts, jsonPhone, "email")
jsonAllContacts = addNewKeyToCurrentObject(jsonAllContacts, jsonPhone, "phone")
jsonAllContacts = addNewKeyToCurrentObject(jsonAllContacts, jsonAddress, "address")
/**
* Remove the IDs that was used for aggregation of data
*/
jsonToSend = removeIDofObject(jsonToSend, jsonAllContacts)
}).start()
OBJECTIVE
我想为用户phone中的每个联系人获取以下数据
StructuredName.GIVEN_NAME|Phone.NUMBER|Email.DATA|StructuredPostal.CITY
我很确定我使用纯 SQL 查询查询 ContactsContract.Data table，但没有关于如何执行此操作的明确文档。
好像可以inject SQL in the contentResolver.query，但好像不可持续。
问题
我以后的代码可以完美运行，但速度很慢。
基本上，
- 我通过它从 ContactsContract.Contacts 和 LOOP 获取所有联系人的 ID，对于每个联系人，
- SELECT CommonDataKinds.StructuredName、 上的命名数据
- SELECT 和 LOOP phone 数据 CommonDataKinds.Phone,
- SELECT 和 LOOP 电子邮件数据 CommonDataKinds.Email,
- SELECT 和 LOOP 地址数据 CommonDataKinds.StructuredPostal
然而，许多循环在性能方面显然适得其反。
对于 1000 个联系人，它会进行大约 3000 个查询。
代码
// CREATE Content resolver
val resolver: ContentResolver = contentResolver
val cursor = resolver.query(
ContactsContract.Contacts.CONTENT_URI,
arrayOf(
ContactsContract.Contacts._ID
),
null,
null,
null
)
if ( cursor != null && cursor.count > 0) {
// PROGRESSBAR Process
myProgressBar?.progress = 0
myProgressBarCircleText?.text = getString(R.string.processing_contacts)
myProgressBar?.visibility = View.VISIBLE
myProgressBarCircle?.visibility = View.VISIBLE
myProgressBarCircleText?.visibility = View.VISIBLE
// PUT BASIC REQUIRED INFO
val jsonAllContacts = JSONObject()
jsonAllContacts.put("source", "2")
// EXECUTE CODE on another thread to prevent blocking UI
Thread(Runnable {
var cursorPosition = 0
var currentProgress: Int
Log.e("JSON", "cursor.count: ${cursor.count}")
// CODE TO EXEC LOOP
while (cursor.moveToNext()) {
// Increment cursor for progressBar
cursorPosition += 1
currentProgress = ((cursorPosition.toFloat() / cursor.count.toFloat()) * 100).toInt()
// INIT of jsonObjects
val jsonEmail = JSONObject()
val jsonPhone = JSONObject()
val jsonAddress = JSONObject()
val jsonCurrentContact = JSONObject()
/**
* NAME DETAILS
*/
val contactID = cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts._ID))
val nameCur = contentResolver.query(
ContactsContract.Data.CONTENT_URI,
arrayOf(
ContactsContract.CommonDataKinds.StructuredName.GIVEN_NAME,
ContactsContract.CommonDataKinds.StructuredName.FAMILY_NAME,
ContactsContract.CommonDataKinds.StructuredName.MIDDLE_NAME
),
ContactsContract.Data.CONTACT_ID + " = ?" + " AND " + ContactsContract.Data.MIMETYPE + " = ?",
arrayOf(
contactID,
ContactsContract.CommonDataKinds.StructuredName.CONTENT_ITEM_TYPE
),
null
)
var givenName = ""
var familyName: String
var middleName: String
var fullName = ""
if ( nameCur != null ) {
while (nameCur.moveToNext()) {
givenName = nameCur.getString(nameCur.getColumnIndex(ContactsContract.CommonDataKinds.StructuredName.GIVEN_NAME)) ?: ""
middleName = nameCur.getString(nameCur.getColumnIndex(ContactsContract.CommonDataKinds.StructuredName.MIDDLE_NAME)) ?: ""
familyName = nameCur.getString(nameCur.getColumnIndex(ContactsContract.CommonDataKinds.StructuredName.FAMILY_NAME)) ?: ""
fullName = if ( middleName != "" && (middleName != familyName) ) {
"$middleName $familyName"
} else {
familyName
}
}
jsonCurrentContact.put("given", givenName)
jsonCurrentContact.put("family", fullName)
}
nameCur?.close()
/**
* PHONE NUMBER
*/
val phoneCur = contentResolver.query(
ContactsContract.CommonDataKinds.Phone.CONTENT_URI,
arrayOf(
ContactsContract.CommonDataKinds.Phone.TYPE,
ContactsContract.CommonDataKinds.Phone.LABEL,
ContactsContract.CommonDataKinds.Phone.NUMBER
),
ContactsContract.CommonDataKinds.Phone.CONTACT_ID + "=?",
arrayOf( contactID ),
null
)
if ( phoneCur != null && phoneCur.count > 0 ) {
while (phoneCur.moveToNext()) {
val phoneNumType = phoneCur.getString( phoneCur.getColumnIndex(ContactsContract.CommonDataKinds.Phone.TYPE) ) ?: ""
val phoneNumLabel = phoneCur.getString( phoneCur.getColumnIndex(ContactsContract.CommonDataKinds.Phone.LABEL) ) ?: ""
var label: String
val phoneNumber = phoneCur.getString( phoneCur.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER) ).replace(" ", "") ?: ""
//Log.e("JSON", "JSON phoneNum: $phoneNumLabel $phoneNumber")
// TRY to get label info
label = if ( phoneNumType == "" ) {
phoneNumLabel
} else {
phoneNumType
}
jsonPhone.put("label", label)
jsonPhone.put("number", phoneNumber)
jsonCurrentContact.accumulate("phone", jsonPhone)
}
}
phoneCur?.close()
/**
* EMAIL
*/
val emailCur = contentResolver.query(
ContactsContract.CommonDataKinds.Email.CONTENT_URI,
arrayOf(
ContactsContract.CommonDataKinds.Email.LABEL,
ContactsContract.CommonDataKinds.Email.DATA
),
ContactsContract.CommonDataKinds.Email.CONTACT_ID + "=?",
arrayOf(contactID),
null
)
if ( emailCur != null ) {
while (emailCur.moveToNext()) {
val emailLabel = emailCur.getString(emailCur.getColumnIndex(ContactsContract.CommonDataKinds.Email.LABEL)) ?: ""
val email = emailCur.getString(emailCur.getColumnIndex(ContactsContract.CommonDataKinds.Email.DATA)) ?: ""
jsonEmail.put("label", emailLabel)
jsonEmail.put("email", email)
jsonCurrentContact.accumulate("email", jsonEmail)
}
}
emailCur?.close()
/**
* ADDRESS
*/
var street: String
var city: String
var postalCode: String
var state: String
var country: String
var label: String
val addressCur = contentResolver.query(
ContactsContract.CommonDataKinds.StructuredPostal.CONTENT_URI,
arrayOf(
ContactsContract.CommonDataKinds.StructuredPostal.TYPE,
ContactsContract.CommonDataKinds.StructuredPostal.STREET,
ContactsContract.CommonDataKinds.StructuredPostal.CITY,
ContactsContract.CommonDataKinds.StructuredPostal.POSTCODE,
ContactsContract.CommonDataKinds.StructuredPostal.REGION,
ContactsContract.CommonDataKinds.StructuredPostal.COUNTRY
),
ContactsContract.CommonDataKinds.StructuredPostal.CONTACT_ID + "=" + contactID,
null,
null
)
if ( addressCur != null ) {
while (addressCur.moveToNext()) {
label = addressCur.getString(addressCur.getColumnIndex(ContactsContract.CommonDataKinds.StructuredPostal.TYPE)) ?: ""
street = addressCur.getString(addressCur.getColumnIndex(ContactsContract.CommonDataKinds.StructuredPostal.STREET)) ?: ""
city = addressCur.getString(addressCur.getColumnIndex(ContactsContract.CommonDataKinds.StructuredPostal.CITY)) ?: ""
postalCode = addressCur.getString(addressCur.getColumnIndex(ContactsContract.CommonDataKinds.StructuredPostal.POSTCODE)) ?: ""
state = addressCur.getString(addressCur.getColumnIndex(ContactsContract.CommonDataKinds.StructuredPostal.REGION)) ?: ""
country = addressCur.getString(addressCur.getColumnIndex(ContactsContract.CommonDataKinds.StructuredPostal.COUNTRY)) ?: ""
jsonAddress.put("label", label)
jsonAddress.put("street", street)
jsonAddress.put("city", city)
jsonAddress.put("postalcode", postalCode)
jsonAddress.put("state", state)
jsonAddress.put("country", country)
jsonCurrentContact.accumulate("address", jsonAddress)
}
}
addressCur?.close()
Log.e("", "jsonCurrentContact: $jsonCurrentContact")
// PUT the current JSON object info into an array
jsonAllContacts.accumulate("contacts", jsonCurrentContact)
}
cursor.close()
}).start()
} else {
cursor?.close()
}
您提到的 3000 个查询可以减少到一个，而且应该会很快完成。
我们将在改进代码时利用两件事：
- 存储在
ContactsContract.CommonDataKinds.XXXtable 中的所有数据实际上存储在一个名为Data. 的大 table 中
- ContactsContract 中有一个隐式连接，允许我们在查询
Data 时从
ContactsContract.Contacts 中获取 select 列
为了简化代码，我建议您定义一个 Contact 对象来存储我们为单个联系人找到的信息，并使用 HashMap 将联系人 ID 映射到 Contact 对象
在此处阅读更多相关信息：https://developer.android.com/reference/android/provider/ContactsContract.Data.html
这里有一些代码可以帮助您入门：
Map<Long, Contact> contacts = new HashMap<>();
// If you need item type / label, add Data.DATA2 & Data.DATA3 to the projection
String[] projection = {Data.CONTACT_ID, Data.DISPLAY_NAME, Data.MIMETYPE, Data.DATA1};
// Add more types to the selection if needed, e.g. StructuredName
String selection = Data.MIMETYPE + " IN ('" + Phone.CONTENT_ITEM_TYPE + "', '" + Email.CONTENT_ITEM_TYPE + "', '" + StructuredPostal.CONTENT_ITEM_TYPE + "')";
Cursor cur = cr.query(Data.CONTENT_URI, projection, selection, null, null);
// Loop through the data
while (cur.moveToNext()) {
long id = cur.getLong(0);
String name = cur.getString(1);
String mime = cur.getString(2); // email / phone / postal
String data = cur.getString(3); // the actual info, e.g. +1-212-555-1234
// get the Contact class from the HashMap, or create a new one and add it to the Hash
Contact contact;
if (contacts.containsKey(id)) {
contact = contacts.get(id);
} else {
contact = new Contact(id);
contact.setDisplayName(name);
// start with empty Sets for phones and emails
// instead of HashSets you can use some object to retain more info about the data item (e.g. label)
contact.setPhoneNumbers(new HashSet<>());
contact.setEmails(new HashSet<>());
contact.setAddresses(new HashSet<>());
contacts.put(id, contact);
}
switch (mime) {
case Phone.CONTENT_ITEM_TYPE:
contact.getPhoneNumbers().add(data);
break;
case Email.CONTENT_ITEM_TYPE:
contact.getEmails().add(data);
break;
case StructuredPostal.CONTENT_ITEM_TYPE:
contact.getAddresses().add(data);
break;
}
}
cur.close();
跟进 成绩进步很大！ 现在这里有一些小的调整，可以使您的新代码更进一步：
- 尽量避免排序，为排序传递 null，并调整代码以按数据出现的任何顺序处理数据，SQLite 排序有时会显着降低查询速度
- 将你的投影减少到你真正需要的字段，你放在投影上的东西越多，需要在设备上的进程之间转移的数据就越大，这会导致更多的块，每个块中的行更少
- 不要
getString投影中的所有字段，如果某些字段仅由StructuredPostal使用，则只读取StructuredPostal行而不是每次迭代。
在评论中报告您使用上述技巧取得的成果...
这是我的 Kotlin 代码，基于 @marmor 答案的逻辑。
此优化代码在 500 毫秒内检索三星 S7 中的 1500 个联系人，而不是问题代码 中的 3 分钟。
为了完整起见，我将把数据聚合到 JSON 对象中的那段代码和 运行 进程的所有细节留在单独的线程中。
Thread(Runnable {
val resolver: ContentResolver = contentResolver
var jsonToSend = JSONObject()
var jsonAllContacts = JSONObject()
val jsonName = JSONObject()
val jsonEmail = JSONObject()
val jsonPhone = JSONObject()
val jsonAddress = JSONObject()
var cursorPosition = 0
var currentProgress: Int
val projection = arrayOf(
ContactsContract.Data.CONTACT_ID,
ContactsContract.Data.DISPLAY_NAME,
ContactsContract.Data.MIMETYPE,
ContactsContract.Data.DATA1,
ContactsContract.Data.DATA2,
ContactsContract.Data.DATA3,
ContactsContract.Data.DATA4,
ContactsContract.Data.DATA5,
ContactsContract.Data.DATA6,
ContactsContract.Data.DATA7,
ContactsContract.Data.DATA8,
ContactsContract.Data.DATA9,
ContactsContract.Data.DATA10,
ContactsContract.Data.DATA11,
ContactsContract.Data.DATA12,
ContactsContract.Data.DATA13,
ContactsContract.Data.DATA14
)
val selection = ContactsContract.Data.MIMETYPE + " IN ('" + ContactsContract.CommonDataKinds.StructuredName.CONTENT_ITEM_TYPE + "', '" + ContactsContract.CommonDataKinds.Phone.CONTENT_ITEM_TYPE + "', '" + ContactsContract.CommonDataKinds.Email.CONTENT_ITEM_TYPE + "', '" + ContactsContract.CommonDataKinds.StructuredPostal.CONTENT_ITEM_TYPE + "')"
val order = "CASE WHEN " + ContactsContract.Data.MIMETYPE + " = '" + ContactsContract.CommonDataKinds.StructuredName.CONTENT_ITEM_TYPE + "' THEN 0 ELSE 1 END ASC, '" + ContactsContract.Data.CONTACT_ID + "'"
val cursor = resolver.query(
ContactsContract.Data.CONTENT_URI,
projection,
selection,
null,
order
)
Log.e("cursor", "cursor STARTED")
if (cursor != null) {
while (cursor.moveToNext())
{
cursorPosition++
currentProgress = ((cursorPosition.toFloat() / cursor.count.toFloat()) * 100).toInt()
// SELECT the data needed from the standardized table
val id = cursor.getLong(0).toString()
val name = cursor.getString(1)
val mime = cursor.getString(2) // email / phone / postal
val data1 = cursor.getString(3) // the actual info, e.g. +1-212-555-1234
val data2 = cursor.getString(4)
val data3 = cursor.getString(5)
val data4 = cursor.getString(6)
val data5 = cursor.getString(7)
val data6 = cursor.getString(8)
val data7 = cursor.getString(9)
val data8 = cursor.getString(10)
val data9 = cursor.getString(11)
val data10 = cursor.getString(12)
val data11 = cursor.getString(13)
val data12 = cursor.getString(14)
val data13 = cursor.getString(15)
val data14 = cursor.getString(16)
// get the Contact class from the HashMap, or create a new one and add it to the Hash
when (mime) {
ContactsContract.CommonDataKinds.StructuredName.CONTENT_ITEM_TYPE -> {
/**
* Type Alias Data column
* String DISPLAY_NAME DATA1
* String GIVEN_NAME DATA2
* String FAMILY_NAME DATA3
* String PREFIX DATA4 Common prefixes in English names are "Mr", "Ms", "Dr" etc.
* String MIDDLE_NAME DATA5
* String SUFFIX DATA6 Common suffixes in English names are "Sr", "Jr", "III" etc.
* String PHONETIC_GIVEN_NAME DATA7 Used for phonetic spelling of the name, e.g. Pinyin, Katakana, Hiragana
* String PHONETIC_MIDDLE_NAME DATA8
* String PHONETIC_FAMILY_NAME DATA9
*/
//Log.e("contact", "Name-- name:$name -- id:$id == 1:$data1 // 2:$data2 // 3:$data3 // 4: $data4 // 5:$data5 // 6:$data6 // 7:$data7 // 8:$data8 // 9:$data9 // 10:$data10 // 11:$data11 // 12:$data12 // 13:$data13 // 14:$data14")
val currentJSON = JSONObject()
val fullName = if ( data5 != null && (data5 != data3) ) {
"$data5 $data3"
} else {
data3 ?: data1 // PUT data1 as last resort because a contact with no names inputted will return something else (e.g. email address)
}
currentJSON.put("given", data2)
currentJSON.put("family", fullName)
jsonName.put( id, currentJSON)
}
ContactsContract.CommonDataKinds.Email.CONTENT_ITEM_TYPE -> {
/**
* IMPROVE - check that valueForJSON / data1 is a properly formatted email. It sometimes saves in the email the name of the person instead of the email.
* e.g. "aze qsd" instead of "aze.qsd@gmail.com"
*/
//Log.e("contact", "Email-- name:$name -- id:$id == 1:$data1 // 2:$data2 // 3:$data3 // 4: $data4 // 5:$data5 // 6:$data6 // 7:$data7 // 8:$data8 // 9:$data9 // 10:$data10 // 11:$data11 // 12:$data12 // 13:$data13 // 14:$data14")
val valueForJSON = data1
if ( jsonEmail.has(id) ) {
val indexString = jsonEmail[id].toString()
val indexArray = JSONObject(indexString)
if ( !indexArray.has(valueForJSON) ) {
jsonEmail.put( id, indexArray.put( valueForJSON, data2 ) )
}
} else {
jsonEmail.put( id, JSONObject().put( valueForJSON, data2 ) )
}
}
ContactsContract.CommonDataKinds.Phone.CONTENT_ITEM_TYPE -> {
/**
* Type Alias Data column
String NUMBER ContactsContract.DataColumns.DATA1
int ContactsContract.CommonDataKinds.CommonColumns.TYPE ContactsContract.DataColumns.DATA2 Allowed values are:
ContactsContract.CommonDataKinds.BaseTypes.TYPE_CUSTOM. Put the actual type in ContactsContract.CommonDataKinds.CommonColumns.LABEL.
TYPE_HOME
TYPE_MOBILE
TYPE_WORK
etc..
String ContactsContract.CommonDataKinds.CommonColumns.LABEL ContactsContract.DataColumns.DATA3
String ContactsContract.CommonDataKinds.CommonColumns.NORMALIZED_NUMBER ContactsContract.DataColumns.DATA4
*/
//Log.e("contact", "Phone-- name:$name -- id:$id == 1:$data1 // 2:$data2 // 3:$data3 // 4: $data4 // 5:$data5 // 6:$data6 // 7:$data7 // 8:$data8 // 9:$data9 // 10:$data10 // 11:$data11 // 12:$data12 // 13:$data13 // 14:$data14")
val valueForJSON = data4 ?: data1
if ( jsonPhone.has(id) ) {
val indexString = jsonPhone[id].toString()
val indexArray = JSONObject(indexString)
if ( !indexArray.has(valueForJSON) ) {
jsonPhone.put( id, indexArray.put( valueForJSON, data2 ) )
}
} else {
jsonPhone.put( id, JSONObject().put( valueForJSON, data2 ) )
}
}
ContactsContract.CommonDataKinds.StructuredPostal.CONTENT_ITEM_TYPE -> {
/**
* Type Alias Data column
String FORMATTED_ADDRESS ContactsContract.DataColumns.DATA1
int ContactsContract.CommonDataKinds.CommonColumns.TYPE ContactsContract.DataColumns.DATA2 Allowed values are:
ContactsContract.CommonDataKinds.BaseTypes.TYPE_CUSTOM. Put the actual type in ContactsContract.CommonDataKinds.CommonColumns.LABEL.
TYPE_HOME
TYPE_WORK
TYPE_OTHER
String ContactsContract.CommonDataKinds.CommonColumns.LABEL ContactsContract.DataColumns.DATA3
String STREET ContactsContract.DataColumns.DATA4
String POBOX ContactsContract.DataColumns.DATA5 Post Office Box number
String NEIGHBORHOOD ContactsContract.DataColumns.DATA6
String CITY ContactsContract.DataColumns.DATA7
String REGION ContactsContract.DataColumns.DATA8
String POSTCODE ContactsContract.DataColumns.DATA9
String COUNTRY ContactsContract.DataColumns.DATA10
*/
//Log.e("contact", "Address-- name:$name -- id:$id == 1:$data1 // 2:$data2 // 3:$data3 // 4: $data4 // 5:$data5 // 6:$data6 // 7:$data7 // 8:$data8 // 9:$data9 // 10:$data10 // 11:$data11 // 12:$data12 // 13:$data13 // 14:$data14")
val currentJSON = JSONObject()
val valueForJSON = data1
currentJSON.put("street", data4)
currentJSON.put("city", data7)
currentJSON.put("postcode", data9)
currentJSON.put("state", data8)
currentJSON.put("country", data10)
if ( jsonAddress.has(id) ) {
val indexString = jsonAddress[id].toString()
val indexArray = JSONObject(indexString)
if ( !indexArray.has(valueForJSON) ) {
jsonAddress.put( id, indexArray.put( valueForJSON, currentJSON ) )
}
} else {
jsonAddress.put( id, JSONObject().put( valueForJSON, currentJSON ) )
}
}
}
runOnUiThread {
//PROGRESS HERE
//myProgressBar?.visibility = View.VISIBLE
myProgressBar?.progress = currentProgress
}
}
}
cursor?.close()
// PUT some data to the first level of the nested JSON object
jsonToSend.put("source", "2")
/**
* ADD the type of contact info to the main jsonAllContacts Object
*/
jsonAllContacts = addNameToCurrentObject(jsonAllContacts, jsonName)
jsonAllContacts = addNewKeyToCurrentObject(jsonAllContacts, jsonPhone, "email")
jsonAllContacts = addNewKeyToCurrentObject(jsonAllContacts, jsonPhone, "phone")
jsonAllContacts = addNewKeyToCurrentObject(jsonAllContacts, jsonAddress, "address")
/**
* Remove the IDs that was used for aggregation of data
*/
jsonToSend = removeIDofObject(jsonToSend, jsonAllContacts)
}).start()