如何启用和禁用卡项目中的视图？
我正在使用cardview来设计这个布局。在此处，当我在任何项目中点击 3点图标时，相应的卡片项目会显示透明黑色图层。但是当我点击 ITEM-1 Vennila 时，我需要做什么，它需要显示透明黑色布局，然后当我点击 ITEM -2时点， ITEM-1透明必须消失，必须显示ITEM-2透明。
我正在使用RecyclerView。请帮我解决。
这是我的适配器代码：
public class CardAdapter extends RecyclerView.Adapter<CardAdapter.ViewHolder> {
List<Restaurant_Beam> restaurant_prducts;
Config config;
Bitmap bmp;
boolean success = false;
ArrayList<String> CATEGORYNAME = new ArrayList<>();
ArrayList<String> ITEMNAME = new ArrayList<>();
ArrayList<String> ITEM_PRICE = new ArrayList<>();
ArrayList<String> LIKE_COUNT = new ArrayList<>();
int clickCount = 0;
private ImageLoader imageLoader;
private Context context;
public CardAdapter(List<Restaurant_Beam> superHeroes, Context context) {
super();
this.restaurant_prducts = superHeroes;
this.context = context;
}
@Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View v = LayoutInflater.from(parent.getContext()).inflate(R.layout.list_item, parent, false);
ViewHolder viewHolder = new ViewHolder(v);
return viewHolder;
}
@Override
public void onBindViewHolder(final ViewHolder holder, final int position) {
Restaurant_Beam restaurant_beam = restaurant_prducts.get(position);
Typeface tf = Typeface.createFromAsset(context.getAssets(), "roboto.medium.ttf");
Typeface tf1 = Typeface.createFromAsset(context.getAssets(), "roboto.regular.ttf");
imageLoader = CustomVolleyRequest.getInstance(context).getImageLoader();
imageLoader.get(config.IMAGE_URL + restaurant_beam.getImageUrl() + ".jpg", ImageLoader.getImageListener(holder.productImage, R.drawable.image_1, R.drawable.image_1)); //android.R.drawable.ic_dialog_alert
String IMAGE_URL = config.IMAGE_URL + restaurant_beam.getImageUrl() + ".jpg";
String ITEM_NAME = restaurant_beam.getStr_productName();
String CATEGORY_NAME = restaurant_beam.getStr_categoryName();
String PRICE = String.valueOf(restaurant_beam.getStrPrice());
int LIKECOUNT = (restaurant_beam.getLikeCount());
String ITEM_ID = restaurant_beam.getProduct_id();
Log.e("Like Count ", String.valueOf(LIKECOUNT));
holder.productImage.setImageUrl(IMAGE_URL, imageLoader);
holder.txt_itemName.setText(ITEM_NAME);
holder.txt_itemName.setTypeface(tf);
holder.txt_categoryName.setText(CATEGORY_NAME);
holder.txt_itemName.setTypeface(tf1);
holder.txt_Price.setText(PRICE);
holder.txtFav.setText(String.valueOf(LIKECOUNT));
holder.txtItemID.setText(ITEM_ID);
holder.linearLayout.setVisibility(View.INVISIBLE);
ITEMNAME.add(ITEM_NAME);
CATEGORYNAME.add(CATEGORY_NAME);
ITEM_PRICE.add(PRICE);
LIKE_COUNT.add(String.valueOf(LIKECOUNT));
Log.e("Card Adapter", "Product Name" + String.valueOf(ITEMNAME) + " Category Name" + CATEGORYNAME + " Price" + ITEM_PRICE + "Restaurant Product" + restaurant_prducts);
holder.productImage.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Intent i = new Intent(view.getContext(), ProductActivity.class);
i.putExtra("itemName", holder.txt_itemName.getText().toString());
i.putExtra("categoryName", holder.txt_categoryName.getText().toString());
i.putExtra("Price", Integer.parseInt(holder.txt_Price.getText().toString()));
i.putExtra("like", Integer.parseInt(holder.txtFav.getText().toString()));
i.putExtra("itemID", holder.txtItemID.getText().toString());
view.getContext().startActivity(i);
}
});
holder.iv_settings.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
clickCount++;
if (v.isEnabled() == true) {
holder.linearLayout.setVisibility(View.VISIBLE);
holder.txt_categoryName.setVisibility(View.INVISIBLE);
holder.txt_itemName.setVisibility(View.INVISIBLE);
holder.iv_settings.setVisibility(View.INVISIBLE);
}
}
});
holder.viewDetail.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Toast.makeText(v.getContext(), "Clicked ViewDetail", Toast.LENGTH_SHORT).show();
}
});
holder.addToCart.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Toast.makeText(v.getContext(), "Clicked AddToCart", Toast.LENGTH_SHORT).show();
}
});
holder.checkOut.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Toast.makeText(v.getContext(), "Clicked CheckOut", Toast.LENGTH_SHORT).show();
}
});
}
@Override
public int getItemCount() {
Log.e("Restaurant Size", String.valueOf(restaurant_prducts
.size()));
return restaurant_prducts.size();
}
public void setFilter(String query) {
Log.e("Adapter Query", query);
if (ITEMNAME.contains(query)) {
Log.e("Inside of SetFilter", " Res");
Log.e("Adapter", String.valueOf(ITEMNAME));
}
Log.e("Adapter Query", String.valueOf(ITEMNAME) + " " + CATEGORYNAME + " " + ITEM_PRICE + " ");
notifyDataSetChanged();
}
public class ViewHolder extends RecyclerView.ViewHolder {
public NetworkImageView productImage;
public TextView txt_categoryName, txtFav, txtItemID;
public TextView txt_itemName, txt_Price;
public CardView cardlist_item;
public ImageView iv_settings;
public LinearLayout linearLayout;
public Button viewDetail, addToCart, checkOut;
public ViewHolder(View itemView) {
super(itemView);
iv_settings = (ImageView) itemView.findViewById(R.id.iv_settings);
cardlist_item = (CardView) itemView.findViewById(R.id.cardlist_item);
txt_itemName = (TextView) itemView.findViewById(R.id.txt_itemName);
txt_Price = (TextView) itemView.findViewById(R.id.txt_Price);
txt_categoryName = (TextView) itemView.findViewById(R.id.txt_categoryName);
productImage = (NetworkImageView) itemView.findViewById(R.id.productImage);
txtFav = (TextView) itemView.findViewById(R.id.txtFav);
txtItemID = (TextView) itemView.findViewById(R.id.txtItemID);
linearLayout = (LinearLayout) itemView.findViewById(R.id.linearTransparent);
viewDetail = (Button) itemView.findViewById(R.id.butViewDetail);
addToCart = (Button) itemView.findViewById(R.id.but_addTCart);
checkOut = (Button) itemView.findViewById(R.id.butCheckOut);
}
}
}
xml代码：
<android.support.v7.widget.CardView xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:card_view="http://schemas.android.com/apk/res-auto"
android:id="@+id/cardlist_item"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="5dp"
android:background="@drawable/curved_shape"
android:orientation="vertical"
card_view:cardElevation="7dp">
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="2dp"
android:background="#FFF"
android:orientation="horizontal">
<com.android.volley.toolbox.NetworkImageView
android:id="@+id/productImage"
android:layout_width="150dp"
android:layout_height="130dp"
android:layout_alignParentEnd="true"
android:layout_alignParentLeft="true"
android:layout_alignParentRight="true"
android:background="@drawable/round_shape"
android:layout_alignParentStart="true"
android:layout_alignParentTop="true"
android:src="@drawable/product_2" />
<LinearLayout
android:id="@+id/linearLayout"
android:layout_width="match_parent"
android:layout_height="35dp"
android:layout_alignLeft="@+id/productImage"
android:layout_alignStart="@+id/productImage"
android:layout_below="@+id/productImage"
android:background="@drawable/curved_shape"
android:gravity="center_vertical"
android:orientation="horizontal"
android:paddingLeft="3dp"
android:paddingRight="4dp"
android:weightSum="1">
<TextView
android:id="@+id/listitem_name"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:gravity="center"
android:layout_gravity="center"
android:layout_weight="0.1"
android:textStyle="bold"
android:text="@string/Rs"
android:textSize="12dp" />
<TextView
android:id="@+id/txt_Price"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:textStyle="bold"
android:layout_weight="0.25"
android:text="120"
android:textSize="12dp" />
<ImageView
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="0.07"
android:src="@drawable/ic_favorite" />
<TextView
android:id="@+id/txtFav"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="0.20"
android:text=" 153"
android:textSize="10dp" />
<TextView
android:id="@+id/txtItemID"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="0.00"
android:textSize="0dp" />
<ImageView
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="0.07"
android:gravity="center"
android:src="@drawable/ic_schedule" />
<TextView
android:id="@+id/txtTime"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="0.25"
android:gravity="center"
android:text="30 min"
android:textSize="10dp" />
</LinearLayout>
<ImageView
android:id="@+id/imageView4"
android:layout_width="150dp"
android:layout_height="130dp"
android:layout_alignParentEnd="true"
android:layout_alignParentLeft="true"
android:layout_alignParentRight="true"
android:layout_alignParentStart="true"
android:background="@drawable/transparent_layout" />
<TextView
android:id="@+id/txt_itemName"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_above="@+id/txt_categoryName"
android:layout_alignLeft="@+id/productImage"
android:layout_alignStart="@+id/productImage"
android:layout_marginLeft="8dp"
android:text="Veg Burger"
android:textColor="@color/white"
android:textSize="16dp"
android:textStyle="bold" />
<TextView
android:id="@+id/txt_categoryName"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_above="@+id/linearLayout"
android:layout_alignLeft="@+id/productImage"
android:layout_alignStart="@+id/productImage"
android:layout_marginBottom="12dp"
android:layout_marginLeft="8dp"
android:layout_marginTop="2dp"
android:text="Category Name"
android:textColor="@color/white"
android:textSize="11dp"
android:textStyle="bold" />
<ImageView
android:id="@+id/iv_settings"
android:layout_width="30dp"
android:layout_height="35dp"
android:layout_alignBottom="@+id/txt_categoryName"
android:layout_alignParentEnd="true"
android:layout_alignParentRight="true"
android:layout_alignTop="@+id/txt_itemName"
android:foregroundGravity="right"
android:src="@drawable/ic_settings3" />
<LinearLayout
android:id="@+id/linearTransparent"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignBottom="@+id/imageView4"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_alignParentTop="true"
android:background="@color/transparent_black"
android:orientation="vertical"
android:visibility="visible">
<Button
android:id="@+id/butViewDetail"
android:layout_width="120dp"
android:layout_height="30dp"
android:layout_gravity="center_horizontal"
android:layout_marginTop="8dp"
android:background="@color/white"
android:text="View Detail" />
<Button
android:id="@+id/but_addTCart"
android:layout_width="120dp"
android:layout_height="30dp"
android:layout_gravity="center_horizontal"
android:layout_marginTop="8dp"
android:background="@color/green"
android:text="ADD TO CART"
android:textColor="@color/white" />
<Button
android:id="@+id/butCheckOut"
android:layout_width="120dp"
android:layout_height="30dp"
android:layout_gravity="center_horizontal"
android:layout_marginTop="8dp"
android:background="@color/orange"
android:text="CHECK OUT"
android:textColor="@color/white" />
</LinearLayout>
</RelativeLayout>
</android.support.v7.widget.CardView>
3 个答案:
答案 0 :(得分：2)
在适配器中创建一个名为clickedPos的int全局变量，如int clickedPos = -1;
在bindViewHolder写 -
if (clickedPos == position) {
holder.linearLayout.setVisibility(View.VISIBLE);
holder.txt_categoryName.setVisibility(View.INVISIBLE);
holder.txt_itemName.setVisibility(View.INVISIBLE);
holder.iv_settings.setVisibility(View.INVISIBLE);
} else {
holder.linearLayout.setVisibility(View.INVISIBLE);
holder.txt_categoryName.setVisibility(View.VISIBLE);
holder.txt_itemName.setVisibility(View.VISIBLE);
holder.iv_settings.setVisibility(View.VISIBLE);
}
holder.iv_settings.setOnClickListener(new View.OnClickListener()
{
@Override
public void onClick(View v)
{
clickedPos = position;
notifyDataSetChanged();
}
});
您必须这样做，因为recyclerview会重复使用视图。
答案 1 :(得分：1)
Hy我认为您应该使用clickListener并将黑色布局叠加在cardview中，默认情况下，黑色布局的可见性已经消失，此处是步骤：
- 用户点击3点
- recycleview迭代它的项目并在所有cardviews中将黑色背景可见性设置为false，除了单击的一个（您可以添加条件检查）
- 当用户点击另一个的卡片视图时，该步骤会重复，因此一个。
这是我的观点，但可能是更好的解决方案。 抱歉我的英语不好:)工作顺利，祝你好运
答案 2 :(得分：1)
try this
if (pos == position)
{
holder.linearLayout.setVisibility(View.VISIBLE);
holder.txt_categoryName.setVisibility(View.INVISIBLE);
holder.txt_itemName.setVisibility(View.INVISIBLE);
holder.iv_settings.setVisibility(View.INVISIBLE);
}
holder.iv_settings.setOnClickListener(new View.OnClickListener()
{
@Override
public void onClick(View v)
{
pos = position;
notifyDataSetChanged();
}
});
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