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In this article, the editor introduces in detail "how to query contact information in Android". The content is detailed, the steps are clear, and the details are handled properly. I hope this article "how to query contact information in Android" can help you solve your doubts.

The main function of Android to query contact information is to query the name, telephone number and e-mail address of the contact.

String columns [] = new String [] {People._ID, People.NAME

People.NUMBER, People.PRIMARY_EMAIL_ID

People.PRIMARY_ORGANIZATION_ID, People.

PRIMARY_PHONE_ID, People.DISPLAY_NAME

People.IM_ACCOUNT, People.IM_HANDLE, People.PHONETIC_NAME, People.TYPE}

Uri mContacts = People.CONTENT_URI

Cursor cur = managedQuery (mContacts, columns, / / data field to be returned

Null, / / WHERE clause

Parameters of the null, / / WHERE clause

People.NAME / / Order-by clause

);

If (cur.moveToFirst ()) {

Cursor newcur = null

Do {

/ / get the value of the field

String name = cur.getString (cur.getColumnIndex (People.NAME))

String phoneNo = cur.getString (cur.getColumnIndex (People.NUMBER))

String peopleId = cur.getString (cur.getColumnIndex (People._ID))

String [] PROJECTION = new String [] {Contacts.ContactMethods._ID

Contacts.ContactMethods.KIND, Contacts.ContactMethods.DATA}

Newcur = managedQuery (Contacts.ContactMethods.CONTENT_URI

PROJECTION, Contacts.ContactMethods.PERSON_ID + "=\"

+ cur.getLong (cur.getColumnIndex (People._ID)) + "\", null, null)

StartManagingCursor (newcur)

String email = ""

If (newcur.moveToFirst ()) {

Email = newcur.getString (newcur.getColumnIndex

(Contacts.ContactMethods.DATA))

}

Log.info ("name =" + name + "

PhoneNo = "+ phoneNo +" email = "+ email)

If (email! = null & &! ".equals (email) & &

Email.trim () .length ()! = 0) {

/ / contact mail can be obtained here

}

} while (cur.moveToNext ())

If (newcur! = null) {

Newcur.close (); / / close it when you run out of it.

}

}

If (cur! = null)

Cur.close (); / / close it when you run out of it.

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