android 由data 获取联系人信息

//跳转到联系人界面
private void pickContact() {
   // Create an intent to "pick" a contact, as defined by the content provider URI
   Intent intent = new Intent(Intent.ACTION_PICK, Contacts.CONTENT_URI);
   startActivityForResult(intent, PICK_CONTACT_REQUEST);
}

//返回来的Intent中的data数据是用户选择的联系人的Uri ，表示资源的位置，以便ContentProvider去查找（query）资源(The URI, using the content:// scheme, for the content to retrieve)
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {

   if (resultCode == Activity.RESULT_OK && requestCode == PICK_CONTACT_REQUEST) {

    System.out.println("data.getData() " + data.getData());
// 输出为： content://com.android.contacts/contacts/lookup/0r5-385C3A525C/5
       Cursor cursor = getContentResolver().query(data.getData(), new String[] {Contacts.DISPLAY_NAME}, null, null, null);
       if (cursor.moveToFirst()) {
           int columnIndex = cursor.getColumnIndex(Contacts.DISPLAY_NAME);
           String name = cursor.getString(columnIndex);
           System.out.println(name);
       }
   }
}

补充：移动开发 , Android ,