Question

我正在实现子视图的复选框和单选按钮。我也夸大了不同的布局。但问题是我使用了if和else语句的视图和always else语句执行而不访问if语句谁能告诉我我在这里做错了什么？我想为我的孩子准备一个chceckbox，但总是会出现radioButton。

public class ExpandableListItem {
public static final int CHILD_TYPE_EDITTEXT = 0;
public static final int CHILD_TYPE_TEXT_FIELD = 1;
public static final int CHILD_TYPE_RADIO_BUTTON = 2;
public static final int CHILD_TYPE_CHECKBOX = 3;

private List<String> childLabels;
private String title;
private int selectionType;



public List<String> getChildLabels() {
    return childLabels;
}

public void setChildLabels(List<String> childLabels) {
    this.childLabels = childLabels;
}

public String getTitle() {
    return title;
}

public void setTitle(String title) {
    this.title = title;
}

public int getSelectionType() {
    return selectionType;
}

public void setSelectionType(int selectionType) {
    this.selectionType = selectionType;
}}

这是我的适配器：

  @Override
public View getChildView(int listPosition, final int expandedListPosition,
                         boolean isLastChild, View convertView, ViewGroup parent) {

    String childLabel = expandableListItemList.get(listPosition).getChildLabels().get(expandedListPosition);

    switch (expandableListItemList.get(listPosition).getSelectionType()) {

        case ExpandableListItem.CHILD_TYPE_CHECKBOX:
            LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);

            convertView = inflater.inflate(R.layout.checkbox, null);
            ((CheckBox)convertView.findViewById(R.id.checkfor_Child)).setText(childLabel);

            break;

        case ExpandableListItem.CHILD_TYPE_EDITTEXT:
            inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            convertView = inflater.inflate(R.layout.plaintext, null);
            break;

        case ExpandableListItem.CHILD_TYPE_RADIO_BUTTON:
            inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            convertView = inflater.inflate(R.layout.radiobutton, null);
            ((RadioButton)convertView.findViewById(R.id.radiofor_child)).setText(childLabel);

            break;
        default:

        case ExpandableListItem.CHILD_TYPE_TEXT_FIELD:
            inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            convertView = inflater.inflate(R.layout.textbox, null);
            break;
    }
    return convertView;
}

这是在我的Builder类里面的create：

 private ArrayList<ExpandableListItem> getchildExpandableListItem() {
    final ArrayList<ExpandableListItem> expandableListItemList = new ArrayList<>();

    ExpandableListItem expandableListItem = new ExpandableListItem();
    expandableListItem.setTitle(getIntent().getStringExtra("Heading"));
    List<String> childLabels = new ArrayList<>();
    childLabels = getIntent().getStringArrayListExtra("options");
    expandableListItem.setChildLabels(childLabels);
   if (expandableListItem.getSelectionType()== 2) {
        expandableListItem.setSelectionType(ExpandableListItem.CHILD_TYPE_CHECKBOX);
    } else {
        expandableListItem.setSelectionType(ExpandableListItem.CCHILD_TYPE_RADIO_BUTTON);
    }
    expandableListItemList.add(expandableListItem);

    return expandableListItemList;
}

我认为在if语句中分配2所以它不会被执行并转到else语句。我能在这做什么？

Answer 1

检查

expandableListItem.getSelectionType()

此值我认为它不会返回2，因此您每次都会收到单选按钮而非复选框，因此请检查数据将落入您的应用中

快乐的Codding !!

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1 个答案: