java - 处理从可检查菜单中选择的项目

Question

我正在使用this创建带有可检查项目的子菜单的教程。到目前为止，一切正常，但我不知道如何处理所选项目，因为我是可序列化的新手。这是教程的链接

https://stackoverflow.com/questions/7072347/how-to-select-multiple-checkboxes-in-submenu-on-android?answertab=active#tab-top

   public static final String SETTING_CHECK_BOX = "SETTING_CHECK_BOX";

private ArrayList < SettingCheckBox > settingList;

@Override
public void onCreate(Bundle savedInstanceState) {
    // ... 
    settingList = new ArrayList < SettingCheckBox > ();
    settingList.add ( new SettingCheckBox ( "Option A" ) );
    settingList.add ( new SettingCheckBox ( "Option B" ) );
    // ... add more items
    // restore any previously saved list
    if ( savedInstanceState != null ) {
        settingList = (ArrayList < SettingCheckBox >) savedInstanceState.getSerializable ( SETTING_CHECK_BOX );
    }
    // ...
}

         protected void onActivityResult ( int requestCode , int resultCode , Intent data ) {
            if ( resultCode != RESULT_OK || data == null )
                return;
            settingList = (ArrayList < SettingCheckBox >) data.getSerializableExtra ( SETTING_CHECK_BOX );

    //how can I log print the list of items that have been checked
    // What should go here ? such that i can do other things after getting a list of items that were checked ?

     //This is my try

            Object[] mStringArray = settingList.toArray();

               for(int i = 0; i < mStringArray.length ; i++){
               Log.d("***Checked items*",(String)mStringArray[i]);
         }

        }

Answer 1

您从该代码中收到任何错误吗？如果没有，则意味着您的 settingList 已使用 data.getSerializedExtra ( SETTING_CHECK_BOX ); 中的解析值正确初始化，该值是 SettingCheckBox 的列表> 对象。从您提供的链接中，包含 SettingCheckBox 对象类的代码。您对对象内部数据的处理方式取决于您的用例。

<小时/>

编辑:回应评论。

如果名称指的是SettingCheckBox文本描述，您可以直接迭代您的settingList，就像所以:

for(int i = 0; i < settingList.size(); i++){
    Log.d("***Checked items*", settingList.get(i).getDescription());
}