Android 如何使RecyclerView标题不粘?
我的布局如下:Android 如何使RecyclerView标题不粘?,android,android-recyclerview,Android,Android Recyclerview,我的布局如下: <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical"
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context="com.example.mkallingal.freakingnav.CardsListFragment">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="@color/darktext"
android:layout_marginBottom="6dp"
android:textAppearance="?android:attr/textAppearanceLarge"
android:text="Cards Listing" />
<android.support.v7.widget.RecyclerView android:layout_height="match_parent" android:layout_width="match_parent" android:id="@+id/rvCardsList"
android:scrollbars="vertical" tools:listitem="@layout/recycler_item_layout">
</android.support.v7.widget.RecyclerView>
</LinearLayout>
问题是TextView的顶部总是粘滞的,而RecyclerView占据了屏幕上剩余的空间。我可以水平滚动recyclerview,但文本视图就停留在那里。如何解决此问题?您可以在recyclerView的第0个元素添加标题视图/TextView。 下面是一个很好的例子 编辑从上述链接复制源 :- 没有像listview.addHeaderView这样简单的方法,但可以通过向头的适配器添加类型来实现这一点 这里有一个例子
public class HeaderAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
private static final int TYPE_HEADER = 0;
private static final int TYPE_ITEM = 1;
String[] data;
public HeaderAdapter(String[] data) {
this.data = data;
}
@Override
public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
if (viewType == TYPE_ITEM) {
//inflate your layout and pass it to view holder
return new VHItem(null);
} else if (viewType == TYPE_HEADER) {
//inflate your layout and pass it to view holder
return new VHHeader(null);
}
throw new RuntimeException("there is no type that matches the type " + viewType + " + make sure your using types correctly");
}
@Override
public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
if (holder instanceof VHItem) {
String dataItem = getItem(position);
//cast holder to VHItem and set data
} else if (holder instanceof VHHeader) {
//cast holder to VHHeader and set data for header.
}
}
@Override
public int getItemCount() {
return data.length + 1;
}
@Override
public int getItemViewType(int position) {
if (isPositionHeader(position))
return TYPE_HEADER;
return TYPE_ITEM;
}
private boolean isPositionHeader(int position) {
return position == 0;
}
private String getItem(int position) {
return data[position - 1];
}
class VHItem extends RecyclerView.ViewHolder {
TextView title;
public VHItem(View itemView) {
super(itemView);
}
}
class VHHeader extends RecyclerView.ViewHolder {
Button button;
public VHHeader(View itemView) {
super(itemView);
}
}
}
您可以在recyclerView的第0个元素添加标题视图/TextView。 下面是一个很好的例子 编辑从上述链接复制源 :- 没有像listview.addHeaderView这样简单的方法,但可以通过向头的适配器添加类型来实现这一点 这里有一个例子
public class HeaderAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
private static final int TYPE_HEADER = 0;
private static final int TYPE_ITEM = 1;
String[] data;
public HeaderAdapter(String[] data) {
this.data = data;
}
@Override
public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
if (viewType == TYPE_ITEM) {
//inflate your layout and pass it to view holder
return new VHItem(null);
} else if (viewType == TYPE_HEADER) {
//inflate your layout and pass it to view holder
return new VHHeader(null);
}
throw new RuntimeException("there is no type that matches the type " + viewType + " + make sure your using types correctly");
}
@Override
public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
if (holder instanceof VHItem) {
String dataItem = getItem(position);
//cast holder to VHItem and set data
} else if (holder instanceof VHHeader) {
//cast holder to VHHeader and set data for header.
}
}
@Override
public int getItemCount() {
return data.length + 1;
}
@Override
public int getItemViewType(int position) {
if (isPositionHeader(position))
return TYPE_HEADER;
return TYPE_ITEM;
}
private boolean isPositionHeader(int position) {
return position == 0;
}
private String getItem(int position) {
return data[position - 1];
}
class VHItem extends RecyclerView.ViewHolder {
TextView title;
public VHItem(View itemView) {
super(itemView);
}
}
class VHHeader extends RecyclerView.ViewHolder {
Button button;
public VHHeader(View itemView) {
super(itemView);
}
}
}
它还值得签出,它支持pullrefresh、loadingmore和header功能。它还值得签出,它支持pullrefresh、loadingmore和header功能。将textView作为项目放入RecyclerView将textView作为项目放入RecyclerView欢迎使用SO!你可能想考虑引用你链接到的文章的相关部分,以便在链接死掉的情况下信息仍然可用。欢迎来到!您可能想考虑引用您链接到的文章的相关部分,以便在链接死掉的情况下,信息仍然可用。