ExpandableListView中的EditText - 打开软键盘时保持焦点

Question

我有一个包含多个组的ExpandableList，每个组包含一个不同类型的子（不同的布局）。我有几个具有类似结构但有不同子视图的活动，所以我决定为它编写一个自定义适配器。适配器在大多数情况下运行良好，除了几个问题：

1. 在子视图中键入文本几乎是不可能的。看起来EditText在键入每个字符后失去焦点。我附上了截图来说明行为。
2. 当组展开/折叠时，几次后，TextViews中的文本似乎消失了，每个视图中只显示第一个单词的第一个字母。它看起来好像他们的布局参数在某种程度上被误算了。

以下是截图：

这是我的适配器的代码：

public class GenericExpandableListAdapter extends BaseExpandableListAdapter {

    private Context context;
    private String[] groups;
    private View[] children;

    public static interface ExpandableListItemClickListener {
        public void onClick(View view, int groupId, int itemId);
    }

    public GenericExpandableListAdapter(Context context, String[] groups, int[] children) {
        if(groups.length != children.length) {
            throw new IllegalArgumentException("Items must have the same length as groups.");
        }
        this.context = context;
        this.groups = groups;

        LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        this.children = new View[children.length];
        for(int i = 0; i < children.length; i++) {
            this.children[i] = inflater.inflate(children[i], null);
        }
    }

    public GenericExpandableListAdapter(Context context, String[] groups, View[] children) {
        if(groups.length != children.length) {
            throw new IllegalArgumentException("Items must have the same length as groups.");
        }
        this.context = context;
        this.groups = groups;
        this.children = children;
    }

    @Override
    public Object getChild(int groupPosition, int childPosition) {
        return children[groupPosition];
    }

    @Override
    public int getChildTypeCount() {
        return children.length + 1;
    }

    @Override
    public int getChildType(int groupPosition, int childPosition) {
        return groupPosition;
    }

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

    @Override
    public View getChildView(final int groupPosition, final int childPosition,
            boolean isLastChild, View convertView, ViewGroup parent) {
        if(convertView != null) {
            return convertView;
        }
        return children[groupPosition];
    }

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

    @Override
    public Object getGroup(int groupPosition) {
        return groups[groupPosition];
    }

    @Override
    public int getGroupTypeCount() {
        return 1;
    }

    @Override
    public int getGroupCount() {
        return groups.length;
    }

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

    @Override
    public int getGroupType(int groupPosition) {
        return 0;
    }

    @Override
    public View getGroupView(int groupPosition, boolean isExpanded,
            View convertView, ViewGroup parent) {

        if(convertView != null) {
            ((TextView) convertView).setText(getGroup(groupPosition).toString());
            return convertView;
        }
        // Layout parameters for the ExpandableListView
        AbsListView.LayoutParams lp = new AbsListView.LayoutParams(
                ViewGroup.LayoutParams.MATCH_PARENT, 64);

        final TextView textView = new TextView(context);
        textView.setLayoutParams(lp);
        // Center the text vertically
        textView.setGravity(Gravity.CENTER_VERTICAL | Gravity.LEFT);
        // Set the text starting position
        textView.setPadding(50, 0, 0, 0);
        textView.setText(getGroup(groupPosition).toString());
        return textView;
    }

    @Override
    public boolean hasStableIds() {
        return true;
    }

    @Override
    public boolean isChildSelectable(int groupPosition, int childPosition) {
        return false;
    }

}

Answer 1

我遇到了类似的问题。

在您的清单文件中添加它，看看它是否有效。它确实适合我。

android:windowSoftInputMode="adjustPan" 

在您的活动代码中，所以它会是这样的

<activity
        android:name=".MainActivity"
        android:label="@string/app_name" 
        android:windowSoftInputMode="adjustPan">