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我需要帮助。我正在开发一个Android应用程序。我使用recyclerview。 我的布局看起来像添加项目后。删除项目后，Recyclerview高度没有变化
PS（Ekle：添加/İçindekiler：成分/塔里夫Başlığı：配方标题）
当我点击 “X” 按钮，则该项目被删除，但recyclerview高度不变。
我该如何处理呢？ 预先感谢
适配器：
public class IngredientsAddAdapter extends RecyclerView.Adapter<IngredientsAddAdapter.IngredientsVH> {
List<String> dataList;
Context context;
OnItemClickListener clickListener;
public IngredientsAddAdapter(Context context, List<String> dataList) {
this.context = context;
this.dataList = dataList;
}
@Override
public IngredientsVH onCreateViewHolder(ViewGroup viewGroup, int i) {
View view = LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.ingredients_add_list_item, viewGroup, false);
return new IngredientsVH(view);
}
@Override
public void onBindViewHolder(IngredientsVH ingredientsVH, int i) {
ingredientsVH.title.setText(dataList.get(i));
}
@Override
public int getItemCount() {
return dataList == null ? 0 : dataList.size();
}
class IngredientsVH extends RecyclerView.ViewHolder implements View.OnClickListener {
TextView title;
ImageButton deleteIng;
public IngredientsVH(View itemView) {
super(itemView);
title = (TextView) itemView.findViewById(R.id.ingredientItem);
deleteIng = (ImageButton) itemView.findViewById(R.id.deleteIng);
deleteIng.setOnClickListener(this);
}
@Override
public void onClick(View v) {
clickListener.onItemClick(v, getAdapterPosition());
dataList.remove(getAdapterPosition());
notifyItemRemoved(getAdapterPosition());
notifyItemRangeChanged(getAdapterPosition(), dataList.size());
}
}
public interface OnItemClickListener {
public void onItemClick(View view, int position);
}
public void SetOnItemClickListener(final OnItemClickListener itemClickListener) {
this.clickListener = itemClickListener;
}
}
活动：
ingList = (RecyclerView) findViewById(R.id.ingList);
ingList.setNestedScrollingEnabled(false);
ingList.setLayoutManager(new LinearLayoutManager(recipeAdd.this));
ingList.setItemAnimator(new DefaultItemAnimator());
ingList.setHasFixedSize(true);
if (ingredientsAddAdapter == null) {
ingredientsAddAdapter = new IngredientsAddAdapter(recipeAdd.this, ingredientsAddArray);
ingList.setAdapter(ingredientsAddAdapter);
ingredientsAddAdapter.SetOnItemClickListener(new IngredientsAddAdapter.OnItemClickListener() {
@Override
public void onItemClick(View view, int position) {
}
});
}
recipe_add.xml（这些代码是仅用于测试目的：d）
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
xmlns:card_view="http://schemas.android.com/apk/res-auto"
android:layout_height="match_parent"
android:background="@color/colorBg"
android:padding="5dp">
<LinearLayout
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_alignParentTop="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true">
<android.support.v7.widget.CardView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_marginBottom="10dp">
<LinearLayout
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:ems="10"
android:id="@+id/recipeTitle"
android:inputType="text"
android:hint="Tarif Başlığı"
style="@style/Widget.AppCompat.Light.AutoCompleteTextView"
android:fontFamily="sans-serif"
android:textSize="14sp"
android:textStyle="normal|bold"
android:layout_margin="5dp"
android:background="@drawable/border"
android:padding="10dp" />
</LinearLayout>
</android.support.v7.widget.CardView>
<android.support.v7.widget.CardView
android:layout_width="match_parent"
android:layout_height="wrap_content" >
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<Button
android:text="Ekle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true"
android:id="@+id/ingAdd"
android:onClick="addIng" />
<TextView
android:text="İçindekiler"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/textView4"
android:textStyle="normal|bold"
android:textSize="14sp"
android:padding="10dp"
android:layout_centerVertical="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true" />
</RelativeLayout>
</android.support.v7.widget.CardView>
<android.support.v7.widget.CardView
android:layout_width="match_parent"
android:layout_height="wrap_content">
<android.support.v7.widget.RecyclerView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/ingList" />
</android.support.v7.widget.CardView>
</LinearLayout>
</RelativeLayout>
成分_ add_list_item.xml
<?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"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:background="@drawable/border_top"
android:orientation="horizontal">
<ImageButton
android:layout_width="30dp"
android:layout_height="match_parent"
android:src="@drawable/crop__ic_cancel"
android:id="@+id/deleteIng"
android:background="@android:color/transparent" />
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:id="@+id/ingredientItem"
android:text="Hello world"
android:textSize="16dp"
android:textColor="@color/colorDark"
android:textStyle="bold"
android:padding="8dp" />
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:id="@+id/isClick"
android:text="false"
android:textSize="16dp"
android:visibility="gone"/>
</LinearLayout>
你能发布用于物品和适配器的代码吗？ –
当然！我需要几秒钟 –
你能发布你的布局xml吗？ –