Android：使用ViewSwitcher过滤GridView

我遇到了一个奇怪的问题。我的

GridView

项有一个底部栏，可通过

ViewSwitcher

进行切换<代码>GridViewAdapter实现

可过滤
。
Filter
和
ViewSwitcher
都能独立正常工作。但是，当我在使用
ViewSwitcher
后尝试过滤出
GridView
项目时，
View
似乎与执行切换的项目卡住了

为了更好的理解，这里有一段视频。切换底部栏后可以看到，ShopB的
视图显示不正确。奇怪的是，根据调试器，填充
适配器的
ArrayList
具有正确的数据。此外，按钮点击等操作也是正确的。只有
视图
是错误的。我真的被这件事吓坏了，如果有任何建议，我将不胜感激。下面是代码的重要部分

getView（…）

过滤器

@Override
public Filter getFilter() {
    return new Filter() {
        @Override
        protected FilterResults performFiltering(CharSequence constraint) {
            FilterResults results = new FilterResults();

            if (constraint == null) {
                    results.values = shops;
                    results.count = shops.size();
            } else {
                ArrayList<ShopGridItem> filteredTemp = new ArrayList<ShopGridItem>();
                String name, tags;
                currentConstraint = constraint.toString().toLowerCase();
                String[] constraintWords = currentConstraint.toString().split("\\s+");
                for (int i = 0; i < constraintWords.length; ++i) {
                    constraintWords[i] = constraintWords[i].trim();
                }

                for (ShopGridItem shop : shops) {
                    name = shop.getName().toLowerCase();
                    tags = shop.getTags();
                    boolean isVisible = true;

                    for (String word : constraintWords) {
                        if (name.contains(word) || tags.contains(word)) {
                            isVisible = true;
                        } else {
                            isVisible = false;
                            break;
                        }
                    }

                    if (isVisible) {
                        if (showFavorites) {
                            if (shop.isFavored()) {
                                filteredTemp.add(shop);
                            }
                        } else {
                            filteredTemp.add(shop);
                        }
                    }
                }

                results.values = filteredTemp;
                results.count = filteredTemp.size();
            }

            return results;
        }

        @SuppressWarnings("unchecked")
        @Override
        protected void publishResults(CharSequence constraint, FilterResults results) {
            filteredShops = (ArrayList<ShopGridItem>) results.values;
            notifyDataSetChanged();
        }
    };
}

onItemLongClik（…）-负责视图切换操作

@SuppressLint("NewApi")
@Override
public boolean onItemLongClick(AdapterView<?> parent, View view, int position, long id) {

    ShopGridHolder holder = (ShopGridHolder) view.getTag();
    ShopGridItem shop = (ShopGridItem) shopGridAdapter.getItem(position);
    Animation animIn, animOut;

    if (shop.isOnMainView()) {
        animIn = AnimationUtils.loadAnimation(view.getContext(), R.anim.in_right);
        animOut = AnimationUtils.loadAnimation(view.getContext(), R.anim.out_left);
    } else {
        animIn = AnimationUtils.loadAnimation(view.getContext(), R.anim.in_left);
        animOut = AnimationUtils.loadAnimation(view.getContext(), R.anim.out_right);
    }

    ViewSwitcher viewSwitcher = holder.getViewSwitcher();
    viewSwitcher.setInAnimation(animIn);
    viewSwitcher.setOutAnimation(animOut);

    int currentapiVersion = android.os.Build.VERSION.SDK_INT;
    if (currentapiVersion >= android.os.Build.VERSION_CODES.JELLY_BEAN) {
        viewSwitcher.setHasTransientState(true);
    }

    viewSwitcher.showNext();
    shop.switchView();

    return false;
}

@SuppressLint（“NewApi”）
@凌驾
公共布尔值长单击（AdapterView父项、视图、整型位置、长id）{
ShopGridHolder=（ShopGridHolder）view.getTag（）；
ShopGridItem商店=（ShopGridItem）shopGridAdapter.getItem（位置）；
动画动画输入，动画输出；
if（shop.isOnMainView（））{
animIn=AnimationUtils.loadAnimation（view.getContext（），R.anim.in_right）；
animOut=AnimationUtils.loadAnimation（view.getContext（），R.anim.out_左）；
}否则{
animIn=AnimationUtils.loadAnimation（view.getContext（），R.anim.in_左）；
animOut=AnimationUtils.loadAnimation（view.getContext（），R.anim.out\u right）；
}
ViewSwitcher ViewSwitcher=holder.getViewSwitcher（）；
viewSwitcher.setInAnimation（动画）；
viewSwitcher.setOutAnimation（动画输出）；
int currentapiVersion=android.os.Build.VERSION.SDK\u int；
if（currentapiVersion>=android.os.Build.VERSION\u code.JELLY\u BEAN）{
viewSwitcher.setHasTransientState（真）；
}
viewSwitcher.showNext（）；
shop.switchView（）；
返回false；
}

shop\u grid\u item.xml

<?xml version="1.0" encoding="utf-8"?>

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@color/fragment_background"
    android:descendantFocusability="blocksDescendants" >

        <RelativeLayout
            android:id="@+id/layout_shop"
            android:layout_width="match_parent"
            android:layout_height="match_parent">

            <ImageView
                android:contentDescription="@string/desc_shop_logo"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:id="@+id/image_logo" />

            <RelativeLayout
                android:id="@+id/relative_layout_top"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_alignParentTop="true"
                android:background="#66696969">

                <TextView
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:textColor="#000000"
                    android:textSize="16sp"
                    android:id="@+id/text_shop_name"
                    android:layout_marginLeft="8dp"
                    android:layout_marginStart="8dp"
                    android:layout_centerVertical="true"
                    android:layout_alignParentLeft="true"
                    android:layout_alignParentStart="true"/>

                <CheckBox
                    android:layout_width="20dp"
                    android:layout_height="20dp"
                    android:layout_marginRight="8dp"
                    android:layout_marginEnd="8dp"
                    android:button="@drawable/favorite_selector"
                    android:id="@+id/checkbox_favorite"
                    android:layout_centerVertical="true"
                    android:layout_alignParentRight="true"
                    android:layout_alignParentEnd="true"
                    android:focusable="false"
                    android:focusableInTouchMode="false"/>

            </RelativeLayout>

            <ViewSwitcher
                android:id="@+id/view_switcher"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_alignParentBottom="true" >

                <RelativeLayout
                    android:id="@+id/relative_layout_bottom"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:background="#66696969">

                    <TextView
                        android:paddingLeft="4dp"
                        android:paddingStart="4dp"
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:textColor="#000000"
                        android:textSize="16sp"
                        android:id="@+id/text_price"
                        android:layout_centerVertical="true"
                        android:layout_alignParentLeft="true"
                        android:layout_alignParentStart="true"/>

                    <SeekBar
                        android:id="@+id/seekbar_price"
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content"
                        android:paddingLeft="10dp"
                        android:paddingRight="10dp"
                        android:thumbOffset="8dp"
                        android:progress="0"
                        android:secondaryProgress="0"
                        android:layout_centerVertical="true"
                        android:layout_toLeftOf="@+id/button_add_to_cart"
                        android:layout_toStartOf="@+id/button_add_to_cart"
                        android:layout_toRightOf="@+id/text_price"
                        android:layout_toEndOf="@+id/text_price"
                        android:progressDrawable="@drawable/seekbar_progress"
                        android:thumb="@drawable/seekbar_thumb"/>

                    <ImageButton
                        android:id="@+id/button_add_to_cart"
                        android:contentDescription="@string/desc_add_to_cart"
                        android:background="@color/transparent"
                        android:src="@drawable/ic_add_to_cart"
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:layout_alignParentRight="true"
                        android:layout_alignParentEnd="true"
                        android:paddingRight="4dp"
                        android:paddingEnd="4dp"
                        android:focusable="false"
                        android:focusableInTouchMode="false"/>

                </RelativeLayout>

                <LinearLayout
                    android:id="@+id/layout_shop_buttons"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:orientation="horizontal"
                    android:background="#66696969" >

                    <ImageButton
                        android:id="@+id/button_show_on_map"
                        android:layout_width="0dp"
                        android:layout_height="wrap_content"
                        android:background="@color/transparent"
                        android:layout_weight="1"
                        android:src="@drawable/ic_show_on_map"
                        android:contentDescription="@string/desc_map"
                        android:focusable="false"
                        android:focusableInTouchMode="false"/>

                    <ImageButton
                        android:id="@+id/button_redirect"
                        android:layout_width="0dp"
                        android:layout_height="wrap_content"
                        android:background="@color/transparent"
                        android:layout_weight="1"
                        android:src="@drawable/ic_go_to_page"
                        android:contentDescription="@string/desc_redirect"
                        android:focusable="false"
                        android:focusableInTouchMode="false"/>

                </LinearLayout>

        </ViewSwitcher>

    </RelativeLayout>

</RelativeLayout>

好的，我发现了代码的错误。动画完成后，我没有在
ViewSwitcher
上调用
setHasTransientState（false）
。设置它解决了问题

@SuppressLint("NewApi")
@Override
public boolean onItemLongClick(AdapterView<?> parent, View view, int position, long id) {

    ShopGridHolder holder = (ShopGridHolder) view.getTag();
    ShopGridItem shop = (ShopGridItem) shopGridAdapter.getItem(position);
    Animation animIn, animOut;

    if (shop.isOnMainView()) {
        animIn = AnimationUtils.loadAnimation(view.getContext(), R.anim.in_right);
        animOut = AnimationUtils.loadAnimation(view.getContext(), R.anim.out_left);
    } else {
        animIn = AnimationUtils.loadAnimation(view.getContext(), R.anim.in_left);
        animOut = AnimationUtils.loadAnimation(view.getContext(), R.anim.out_right);
    }

    ViewSwitcher viewSwitcher = holder.getViewSwitcher();
    viewSwitcher.setInAnimation(animIn);
    viewSwitcher.setOutAnimation(animOut);

    int currentapiVersion = android.os.Build.VERSION.SDK_INT;
    if (currentapiVersion >= android.os.Build.VERSION_CODES.JELLY_BEAN) {
        viewSwitcher.setHasTransientState(true);
    }

    viewSwitcher.showNext();
    shop.switchView();

    return false;
}

<?xml version="1.0" encoding="utf-8"?>

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@color/fragment_background"
    android:descendantFocusability="blocksDescendants" >

        <RelativeLayout
            android:id="@+id/layout_shop"
            android:layout_width="match_parent"
            android:layout_height="match_parent">

            <ImageView
                android:contentDescription="@string/desc_shop_logo"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:id="@+id/image_logo" />

            <RelativeLayout
                android:id="@+id/relative_layout_top"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_alignParentTop="true"
                android:background="#66696969">

                <TextView
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:textColor="#000000"
                    android:textSize="16sp"
                    android:id="@+id/text_shop_name"
                    android:layout_marginLeft="8dp"
                    android:layout_marginStart="8dp"
                    android:layout_centerVertical="true"
                    android:layout_alignParentLeft="true"
                    android:layout_alignParentStart="true"/>

                <CheckBox
                    android:layout_width="20dp"
                    android:layout_height="20dp"
                    android:layout_marginRight="8dp"
                    android:layout_marginEnd="8dp"
                    android:button="@drawable/favorite_selector"
                    android:id="@+id/checkbox_favorite"
                    android:layout_centerVertical="true"
                    android:layout_alignParentRight="true"
                    android:layout_alignParentEnd="true"
                    android:focusable="false"
                    android:focusableInTouchMode="false"/>

            </RelativeLayout>

            <ViewSwitcher
                android:id="@+id/view_switcher"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_alignParentBottom="true" >

                <RelativeLayout
                    android:id="@+id/relative_layout_bottom"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:background="#66696969">

                    <TextView
                        android:paddingLeft="4dp"
                        android:paddingStart="4dp"
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:textColor="#000000"
                        android:textSize="16sp"
                        android:id="@+id/text_price"
                        android:layout_centerVertical="true"
                        android:layout_alignParentLeft="true"
                        android:layout_alignParentStart="true"/>

                    <SeekBar
                        android:id="@+id/seekbar_price"
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content"
                        android:paddingLeft="10dp"
                        android:paddingRight="10dp"
                        android:thumbOffset="8dp"
                        android:progress="0"
                        android:secondaryProgress="0"
                        android:layout_centerVertical="true"
                        android:layout_toLeftOf="@+id/button_add_to_cart"
                        android:layout_toStartOf="@+id/button_add_to_cart"
                        android:layout_toRightOf="@+id/text_price"
                        android:layout_toEndOf="@+id/text_price"
                        android:progressDrawable="@drawable/seekbar_progress"
                        android:thumb="@drawable/seekbar_thumb"/>

                    <ImageButton
                        android:id="@+id/button_add_to_cart"
                        android:contentDescription="@string/desc_add_to_cart"
                        android:background="@color/transparent"
                        android:src="@drawable/ic_add_to_cart"
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:layout_alignParentRight="true"
                        android:layout_alignParentEnd="true"
                        android:paddingRight="4dp"
                        android:paddingEnd="4dp"
                        android:focusable="false"
                        android:focusableInTouchMode="false"/>

                </RelativeLayout>

                <LinearLayout
                    android:id="@+id/layout_shop_buttons"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:orientation="horizontal"
                    android:background="#66696969" >

                    <ImageButton
                        android:id="@+id/button_show_on_map"
                        android:layout_width="0dp"
                        android:layout_height="wrap_content"
                        android:background="@color/transparent"
                        android:layout_weight="1"
                        android:src="@drawable/ic_show_on_map"
                        android:contentDescription="@string/desc_map"
                        android:focusable="false"
                        android:focusableInTouchMode="false"/>

                    <ImageButton
                        android:id="@+id/button_redirect"
                        android:layout_width="0dp"
                        android:layout_height="wrap_content"
                        android:background="@color/transparent"
                        android:layout_weight="1"
                        android:src="@drawable/ic_go_to_page"
                        android:contentDescription="@string/desc_redirect"
                        android:focusable="false"
                        android:focusableInTouchMode="false"/>

                </LinearLayout>

        </ViewSwitcher>

    </RelativeLayout>

</RelativeLayout>