從Android跳轉到手機通訊錄中並返回電話號碼和姓名等資料

//開通許可權
<uses-permission android:name="android.permission.READ_CONTACTS" />
    <uses-permission android:name="android.permission.READ_PHONE_STATE" />

//跳轉到通訊錄 action=ContactsContract.Contacts.CONTENT_URI;

 Intent intent = new Intent(Intent.ACTION_PICK,ContactsContract.Contacts
 
.CONTENT_URI);
      startActivityForResult(intent, 0);

//跳轉到通訊錄後的回撥

```
 protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        switch (requestCode){
            case 0:
                if(data==null)
                {
                    return
 
;
                }

            **//處理返回的data,獲取選擇的聯絡人資訊**
            Uri uri=data.getData();
            String[] contacts=getPhoneContacts(uri);
            et_name.setText(contacts[0]);
            et_tele.setText(contacts[1]);
            break;
    }
    super.onActivityResult(requestCode, resultCode, data);
}
 

**//從回撥的uri中查詢資料庫拿到電話號碼和姓名**

 private String[] getPhoneContacts(Uri uri){
        String[] contact=new String[2];
        **//得到ContentResolver物件**
        ContentResolver cr = getContentResolver();
        **//取得電話本中開始一項的游標**
        Cursor cursor=cr.query(uri,null,null,null,null);
        if(cursor!=null)
        {
            cursor.moveToFirst();
            **//取得聯絡人姓名**
            int nameFieldColumnIndex=cursor.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME);
            contact[0]=cursor.getString(nameFieldColumnIndex);
            **//取得電話號碼**
            String ContactId = cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts._ID));
            Cursor phone = cr.query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null,
                    ContactsContract.CommonDataKinds.Phone.CONTACT_ID + "=" + ContactId, null, null);
            if(phone != null){
                phone.moveToFirst();
                contact[1] = phone.getString(phone.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
            }
            phone.close();
            cursor.close();
        }
        else
        {
            return null;
        }
        return contact;
    }

“`