Question

我无法在expandablelistview中使用自定义布局，只需点击一个孩子就可以刷新。

在示例中，您有方法MyExpandableListAdapter - ＆gt; getChildView，其中孩子膨胀自定义布局R.layout.list_out_item（什么是文本视图和按钮）。

现在我希望如果我点击一个按钮，该子视图的子节点和父节点就会更新。我怎样才能做到这一点？我正在考虑刷新父母和孩子，因为崩溃迫使更新，但也欢迎其他解决方案。

例如

public class Sample extends ExpandableListActivity {
    ExpandableListAdapter mAdapter;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        // Set up our adapter
        mAdapter = new MyExpandableListAdapter();
        setListAdapter(mAdapter);

    }
}

public class MyExpandableListAdapter extends BaseExpandableListAdapter {
    private Map<Ability, Integer> abilityMods;
    private List<Skill> skills = SkillList();

    private List<Skill> SkillList() {
        List<Skill> skills = new Vector<Skill>();

        abilityMods = Player.getAbilityModifier();

        skills.add(new Skill(abilityMods, "Appraise", 2, Ability.Dex, 2));
        skills.add(new Skill(abilityMods, "Autohypnosis", 0, Ability.Int,
                -7));
        skills.add(new Skill(abilityMods, "Craft", 0, Ability.Dex, 0));

        return skills;

    }

    public MyExpandableListAdapter() {
        super();
        abilityMods = Player.getAbilityModifier();
    }

    public long getChildId(int groupPosition, int childPosition) {
        return childPosition;
    }

    public int getChildrenCount(int groupPosition) {
        return 1;
    }


    public View getChildView(int groupPosition, int childPosition,
            boolean isLastChild, View convertView, final ViewGroup parent) {

        LayoutInflater infalInflater = getLayoutInflater();
        convertView = infalInflater.inflate(R.layout.list_out_item, null);

        final Skill skill = getChild(groupPosition, childPosition);

        TextView tv = (TextView) convertView.findViewById(R.id.abilityMod);
        tv.setText(toString(skill.abillityMod()));

        Button rankMod = (Button) convertView.findViewById(R.id.rankMod);
        rankMod.setText(toString(skill.Ranks));


        rankMod.setOnClickListener(new OnClickListener() {
            public void onClick(View v) {
                skill.Ranks++;  
            }
        });

        return convertView;
    }

    private String toString(int value) {
        if (value >= 0)
            return ("+" + String.valueOf(value));
        else
            return (String.valueOf(value));
    }

    public Skill getGroup(int groupPosition) {
        return skills.get(groupPosition);
    }

    @Override
    public Skill getChild(int groupPosition, int childPosition) {
        return getGroup(groupPosition);
    }

    public int getGroupCount() {
        return skills.size();
    }

    public long getGroupId(int groupPosition) {
        return groupPosition;
    }

    public View getGroupView(int groupPosition, boolean isExpanded,
            View convertView, ViewGroup parent) {
        LayoutInflater infalInflater = getLayoutInflater();
        convertView = infalInflater
                .inflate(R.layout.list_header_item, null);

        TextView skillName = (TextView) convertView
                .findViewById(R.id.skillName);
        Skill skill = getGroup(groupPosition);

        TextView skillPower = (TextView) convertView
                .findViewById(R.id.skillPower);
        int TotalMod = skill.TotalModifier();

        if (TotalMod >= 0)
            skillPower.setText("+" + String.valueOf(TotalMod));
        else
            skillPower.setText(String.valueOf(TotalMod));

        return convertView;
    }

    public boolean isChildSelectable(int groupPosition, int childPosition) {
        return true;
    }

    public boolean hasStableIds() {
        return true;
    }

}

Answer 1

查看自定义BaseExpandableListViewAdapter的{{3}}链接。使用List<View>存储父视图，单击btn时，获取父视图并操作视图。

刷新expandablelistview的整个父级

1 个答案: