1 reading, adding contacts

--------------Main.java-----------------

Package COM.EXAMPLE.VD;

Import java.util.ArrayList;

Import Java.util.HashMap;

Import java.util.List;

Import Java.util.Map;

Import Android.content.ContentResolver;

Import Android.database.Cursor;

Import Android.net.Uri;

Import Android.os.Bundle;

Import android.support.v7.app.ActionBarActivity;

Import Android.widget.ListView;

Import Android.widget.SimpleAdapter;

public class Mainactivity extends Actionbaractivity {

Private ListView list_select_contact;

@Override

protected void OnCreate (Bundle savedinstancestate) {

Super.oncreate (savedinstancestate);

Setcontentview (R.layout.activity_main);

List_select_contact = (ListView) Findviewbyid (r.id.list_select_contact);

Final list<map<string, string>> data = Getcontactinfo ();

List_select_contact.setadapter (New Simpleadapter (this, data,

R.layout.line, new string[] {"Name", "Phone", "others"},

New int[] {r.id.tv_name, r.id.tv_phone, r.id.tv_other});

}

/**

* Read the contacts inside the hand

*

* @return

*/

Private list<map<string, string>> Getcontactinfo () {

Put all the contacts

list<map<string, string>> list = new arraylist<map<string,string>> ();

Get a Content Parser

Contentresolver resolver = Getcontentresolver ();

Raw_contacts URI

Uri uri = uri.parse ("content://com.android.contacts/raw_contacts");

Uri uridata = Uri.parse ("Content://com.android.contacts/data");

cursor cursor = resolver.query (URI, new string[] {"contact_id"},

NULL, NULL, NULL);

while (Cursor.movetonext ()) {

String contact_id = cursor.getstring (0);

if (contact_id! = null) {

Specific one of the contacts

map<string, string> map = new hashmap<string, string> ();

Cursor datacursor = Resolver.query (Uridata, new string[] {

"Data1", "MimeType"}, "Contact_id=?",

New string[] {contact_id}, NULL);

while (Datacursor.movetonext ()) {

String data1 = datacursor.getstring (0);

String mimetype = datacursor.getstring (1);

System.out.println ("data1==" +data1+ "==mimetype==" +mimetype);

if ("Vnd.android.cursor.item/name". Equals (MimeType)) {

Name of contact person

Map.put ("name", data1);

}else if ("Vnd.android.cursor.item/phone_v2". Equals (MimeType)) {

Phone number of the contact person

Map.put ("Phone", data1);

} else if ("Vnd.android.cursor.item/note". Equals (MimeType)) {

Map.put ("Others", data1);

}

}

List.add (map);

Datacursor.close ();

}

}

Cursor.close ();

return list;

}

}

。。。。。。。。 Main.xml .....

<linearlayout xmlns:android= "Http://schemas.android.com/apk/res/android"

Android:layout_width= "Fill_parent"

android:layout_height= "Fill_parent"

android:orientation= "Vertical" >

<listview

Android:id= "@+id/list_select_contact"

Android:layout_width= "Match_parent"

android:layout_height= "Match_parent"

android:layout_margintop= "15dip"

android:verticalspacing= "10dip"/>

</LinearLayout>

。。。。。。 /layout/line.xml .....

<linearlayout xmlns:android= "Http://schemas.android.com/apk/res/android"

Android:layout_width= "Wrap_content"

android:layout_height= "Wrap_content"

android:orientation= "Vertical" >

<textview

Android:id= "@+id/tv_name"

Android:layout_width= "Wrap_content"

android:layout_height= "Wrap_content"

Android:textcolor= "#ff00ff"

/>

<textview

Android:id= "@+id/tv_phone"

Android:layout_width= "Wrap_content"

android:layout_height= "Wrap_content"

Android:textcolor= "#ff00ff"

/>

<textview

Android:id= "@+id/tv_other"

Android:layout_width= "Wrap_content"

android:layout_height= "Wrap_content"

Android:textcolor= "#ff00ff"

/>

</LinearLayout>

Permissions

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

~~~~~~~~~~~ Additional Instructions ~~~~~~~~~

If you want to increase the ability to add contacts, refer to the following methods

public void Addcontacts (View v) {

Uri uri = uri.parse ("content://com.android.contacts/raw_contacts");

Uri Datauri = Uri.parse ("Content://com.android.contacts/data");

1. Add a record to the Raw_contacts table

Take the value of contact_id in the Raw_contacts table

cursor cursor = getcontentresolver (). Query (URI, new string[]{"contact_id"}, NULL, NULL, "contact_id desc limit 1");

if (cursor! = NULL && Cursor.movetofirst ()) {

int contact_id = cursor.getint (0);

contact_id + +;

Cursor.close ();

Contentvalues values = new Contentvalues ();

Values.put ("contact_id", contact_id);

Getcontentresolver (). Insert (URI, values);

2. Based on the ID of the record added above, add three data to the table.

Deposit Number

values = new Contentvalues ();

Values.put ("MimeType", "vnd.android.cursor.item/phone_v2");

Values.put ("Data1", "10086");

Values.put ("raw_contact_id", contact_id);

Getcontentresolver (). Insert (Datauri, values);

Save Name

values = new Contentvalues ();

Values.put ("MimeType", "vnd.android.cursor.item/name");

Values.put ("Data1", "China Mobile");

Values.put ("raw_contact_id", contact_id);

Getcontentresolver (). Insert (Datauri, values);

Save Mail

values = new Contentvalues ();

Values.put ("MimeType", "vnd.android.cursor.item/email_v2");

Values.put ("Data1", "[email protected]");

Values.put ("raw_contact_id", contact_id);

Getcontentresolver (). Insert (Datauri, values);

}

}

1 reading, adding contacts