android_74_写联系人

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效果:

清单:

<?xml version="1.0" encoding="utf-8"?><manifest xmlns:android="http://schemas.android.com/apk/res/android"    package="com.sg31.contactwriter"    android:versionCode="1"    android:versionName="1.0" >    <uses-sdk        android:minSdkVersion="8"        android:targetSdkVersion="21" />    // 注意权限     <uses-permission android:name="android.permission.WRITE_CONTACTS"/>    <uses-permission android:name="android.permission.READ_CONTACTS"/>            <application        android:allowBackup="true"        android:icon="@drawable/ic_launcher"        android:label="@string/app_name"        android:theme="@style/AppTheme" >        <activity            android:name=".MainActivity"            android:label="@string/app_name" >            <intent-filter>                <action android:name="android.intent.action.MAIN" />                <category android:name="android.intent.category.LAUNCHER" />            </intent-filter>        </activity>    </application></manifest>

布局:

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:paddingBottom="@dimen/activity_vertical_margin"    android:paddingLeft="@dimen/activity_horizontal_margin"    android:paddingRight="@dimen/activity_horizontal_margin"    android:paddingTop="@dimen/activity_vertical_margin"    tools:context="com.sg31.contactwriter.MainActivity" >    <Button        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="插入联系人"         android:onClick="writeContactBtnClicked"        /></RelativeLayout>

代码:

package com.sg31.contactwriter;import android.support.v7.app.ActionBarActivity;import android.content.ContentResolver;import android.content.ContentValues;import android.database.Cursor;import android.net.Uri;import android.os.Bundle;import android.view.Menu;import android.view.MenuItem;import android.view.View;public class MainActivity extends ActionBarActivity {@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);}@Overridepublic boolean onCreateOptionsMenu(Menu menu) {// Inflate the menu; this adds items to the action bar if it is present.getMenuInflater().inflate(R.menu.main, menu);return true;}@Overridepublic boolean onOptionsItemSelected(MenuItem item) {// Handle action bar item clicks here. The action bar will// automatically handle clicks on the Home/Up button, so long// as you specify a parent activity in AndroidManifest.xml.int id = item.getItemId();if (id == R.id.action_settings) {return true;}return super.onOptionsItemSelected(item);}public void writeContactBtnClicked(View v) {ContentResolver cr = getContentResolver();// 先查询raw_contacts表，获取最新联系人的主键，然后主键+1，就是要插入的联系人的idCursor cursorContactId = cr.query(Uri.parse("content://com.android.contacts/raw_contacts"),new String[] { "_id" }, null, null, null);// 默认联系人id就是1int contact_id = 1;if (cursorContactId.moveToLast()) {// 拿到主键int _id = cursorContactId.getInt(0);// 主键+1，就是要插入的联系人idcontact_id = ++_id;}ContentValues values = new ContentValues();values.put("contact_id", contact_id);// 把联系人id插入raw_contacts数据库cr.insert(Uri.parse("content://com.android.contacts/raw_contacts"),values);// 千万记得clear掉旧的数据values.clear();values.put("data1", "dnoyeb");values.put("mimetype", "vnd.android.cursor.item/name");values.put("raw_contact_id", contact_id);cr.insert(Uri.parse("content://com.android.contacts/data"), values);// 千万记得clear掉旧的数据values.clear();values.put("data1", "1385267");values.put("mimetype", "vnd.android.cursor.item/phone_v2");values.put("raw_contact_id", contact_id);cr.insert(Uri.parse("content://com.android.contacts/data"), values);}}

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