【发布时间】：2020-01-20 16:41:10
【问题描述】：
目标
我想为用户手机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 查询查询了 ContactsContract.Data 表，但没有关于如何执行此操作的明确文档。
看来你可以inject SQL in the contentResolver.query 但它似乎不可持续。
问题
此后我的代码可以完美运行，但速度很慢。
基本上，
- 我从 ContactsContract.Contacts 和 LOOP 获取所有联系人的 ID，并通过它获取每个联系人的 ID，
- 在 CommonDataKinds.StructuredName 上选择命名数据，
- 在 CommonDataKinds.Phone 上选择和 LOOP 电话数据，
- 在 CommonDataKinds.Email 上选择和 LOOP 电子邮件数据，
- SELECT 和 LOOP CommonDataKinds.StructuredPostal 上的地址数据
但是，就性能而言，许多循环显然适得其反。
如果有 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()
}
【问题讨论】：
标签： android kotlin android-contacts query-performance