RecyclerView幻灯片会自动跳过标题

时间:2018-01-17 09:42:20

标签: android android-recyclerview

我曾经添加了viewtype方式为RecycleView添加一个标题,但是接口会直接跳过标题刷新,但是如果拒绝,标题仍会显示,但刷新会跳过这一行,这是由它

这是适配器

中onCreateViewHolder()方法的代码
@Override
public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
    if (viewType == TYPE_HEADER) {
        View headerView = LayoutInflater.from(parent.getContext()).inflate(R.layout.header_online, parent, false);
        LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT);
        headerView.setLayoutParams(layoutParams);
        return new OnlineHeaderHolder(headerView, context);
    } else if (viewType == TYPE_STAR) {
        View starView = LayoutInflater.from(parent.getContext()).inflate(R.layout.item_online_star, parent, false);
        LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT);
        starView.setLayoutParams(layoutParams);
        return new OnlineStarViewHolder(starView, context);
    } else {
        View normalView = LayoutInflater.from(parent.getContext()).inflate(R.layout.item_online, parent, false);
        return new OnlineListHolder(normalView, context);
    }
}

这是标题布局文件

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="vertical">

<RelativeLayout
    android:layout_width="match_parent"
    android:layout_height="@dimen/xx"
    android:background="@color/colorPrimary">

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerVertical="true"
        android:layout_marginLeft="@dimen/dimens_xh_15dp"
        android:layout_marginStart="@dimen/dimens_xh_15dp"
        android:text="@string/latest_active"
        android:textColor="@color/xx"
        android:textSize="17sp" />

    <ImageView
        android:id="@+id/xx"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerVertical="true"
        android:layout_marginEnd="@dimen/xx"
        android:layout_marginRight="@dimen/xx"
        android:layout_toLeftOf="@+id/xx"
        android:layout_toStartOf="@+id/xx"
        android:src="@mipmap/xx" />

    <ImageView
        android:id="@+id/xx"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentEnd="true"
        android:layout_alignParentRight="true"
        android:layout_centerVertical="true"
        android:layout_marginEnd="xx"
        android:layout_marginRight="xx"
        android:src="@mipmap/xx" />

</RelativeLayout>

<View
    android:layout_width="match_parent"
    android:layout_height="1dp"
    android:background="@color/xx" />

</LinearLayout>

这里用xx删除了一些无关的信息

这是我的onBindViewHolder()方法 我使用的模型包含所有数据,有一个&#34;类型&#34;模型中的属性区分不同类型

@Override
public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
    OnlineNewAdaper.OnlineModel onlineModel = modelList.get(position);
    switch (onlineModel.getType()) {
        case TYPE_HEADER:
            ((OnlineHeaderHolder) holder).setData(onlineModel);
            ((OnlineHeaderHolder) holder).setOnlineSelectListener(listener);
            break;
        case TYPE_STAR:
            ((OnlineStarViewHolder) holder).setData(onlineModel);
            break;
        case TYPE_NORMAL:
            ((OnlineListHolder) holder).setData(onlineModel, mServerTime);
            break;
        default:
            break;
    }
}

这是OnlineHeaderHolder代码:

public class OnlineHeaderHolder extends RecyclerView.ViewHolder  {

public OnlineHeaderHolder(View itemView, Context context) {
    super(itemView);
    this.context = context;

    ViewHelper.inject((ViewGroup) itemView, this);
}

public void setData(OnlineNewAdaper.OnlineModel data) {
    if (data.getType() != TYPE_HEADER) {
        return;
    }

}
}

1 个答案:

答案 0 :(得分:1)

您可以在根容器中尝试使用以下属性。

android:descendantFocusability="blocksDescendants"

这将禁用其后代视图的可聚焦性。您还可以使用其他两个选项值:afterDescendant&amp; beforeDescendant