Povider

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

public class MainActivity extends AppCompatActivity {    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        editProvider();        ContentResolver cr = getContentResolver();        Cursor c = cr.query(ContactsContract.Contacts.CONTENT_URI, new String[] { ContactsContract.Contacts._ID,                ContactsContract.Contacts.DISPLAY_NAME }, null, null, null);        if (c != null) {            while (c.moveToNext()) {                int id = c.getInt(c.getColumnIndex("_id"));                Log.i("info", "_id:" + id);                Log.i("info", "name:" + c.getString(c.getColumnIndex("display_name")));                Cursor c1 = cr.query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, new String[] {                                ContactsContract.CommonDataKinds.Phone.NUMBER, ContactsContract.CommonDataKinds.Phone.TYPE },                        ContactsContract.CommonDataKinds.Phone.CONTACT_ID + "=" + id, null, null);                // 根据联系人ID查询出联系人的电话号码                if (c1 != null) {                    while (c1.moveToNext()) {                        int type = c1.getInt(c1.getColumnIndex(ContactsContract.CommonDataKinds.Phone.TYPE));                        if (type == ContactsContract.CommonDataKinds.Phone.TYPE_HOME) {                            Log.i("info", "家庭电话：" +                                    c1.getString(c1.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER)));                        } else if (type == ContactsContract.CommonDataKinds.Phone.TYPE_MOBILE) {                            Log.i("info", "手机："                                   + c1.getString(c1.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER)));                        }                    }                    c1.close();                }                // 根据联系人的ID去查询出联系人的邮箱地址                Cursor c2 = cr.query(ContactsContract.CommonDataKinds.Email.CONTENT_URI, new String[] {                                ContactsContract.CommonDataKinds.Email.DATA, ContactsContract.CommonDataKinds.Email.TYPE },                                ContactsContract.CommonDataKinds.Email.CONTACT_ID + "=" + id,                        null, null);                if (c2 != null) {                    while (c2.moveToNext()) {                        int type = c2.getInt(c2.getColumnIndex(ContactsContract.CommonDataKinds.Email.DATA));                        if (type == ContactsContract.CommonDataKinds.Email.TYPE_WORK) {                            Log.i("info", "工作邮箱：" +                                    c2.getString(c2.getColumnIndex(ContactsContract.CommonDataKinds.Email.DATA)));                        }                    }                    c2.close();                }            }            c.close();        }    }    public void editProvider(){        ContentResolver contentResolver = getContentResolver();        //向联系人中插入数据        ContentValues values = new ContentValues();        Uri uri = contentResolver.insert(ContactsContract.RawContacts.CONTENT_URI, values);        Long raw_contact_id = ContentUris.parseId(uri);        values.clear();        //插入人名        values.put(ContactsContract.CommonDataKinds.StructuredName.RAW_CONTACT_ID, raw_contact_id);        values.put(ContactsContract.CommonDataKinds.StructuredName.DISPLAY_NAME, "添加人");        values.put(ContactsContract.CommonDataKinds.StructuredName.MIMETYPE,                    ContactsContract.CommonDataKinds.StructuredName.CONTENT_ITEM_TYPE);        uri = contentResolver.insert(ContactsContract.Data.CONTENT_URI, values);        //插入电话信息        values.clear();        values.put(ContactsContract.CommonDataKinds.Phone.RAW_CONTACT_ID,raw_contact_id);        values.put(ContactsContract.CommonDataKinds.Phone.NUMBER,"110");        values.put(ContactsContract.CommonDataKinds.Phone.MIMETYPE,                ContactsContract.CommonDataKinds.Phone.TYPE_MOBILE);        uri = contentResolver.insert(ContactsContract.Data.CONTENT_URI, values);    }    @Override    public boolean onCreateOptionsMenu(Menu menu) {        // Inflate the menu; this adds items to the action bar if it is present.        getMenuInflater().inflate(R.menu.menu_main, menu);        return true;    }    @Override    public 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();        //noinspection SimplifiableIfStatement        if (id == R.id.action_settings) {            return true;        }        return super.onOptionsItemSelected(item);    }}

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