Java 如何显示列表中一个项目的视图并对其他项目隐藏。?
我有一个列表与回收视图。我正在显示另一个布局,单击它的父项布局 现在,当我单击列表中的项目时,它会显示所有项目的视图,现在我想使布局仅对单击的项目可见,并使其对其他项目不可见 布局详细信息应仅在单击项目时可见,并且仅对单击的项目可见 布局:Java 如何显示列表中一个项目的视图并对其他项目隐藏。?,java,android,list,android-recyclerview,Java,Android,List,Android Recyclerview,我有一个列表与回收视图。我正在显示另一个布局,单击它的父项布局 现在,当我单击列表中的项目时,它会显示所有项目的视图,现在我想使布局仅对单击的项目可见,并使其对其他项目不可见 布局详细信息应仅在单击项目时可见,并且仅对单击的项目可见 布局: <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:card_view="http://schemas.android.com/apk/res-auto"
android:id="@+id/lay_row"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_centerInParent="false"
android:orientation="vertical">
<android.support.v7.widget.CardView
xmlns:app="http://schemas.android.com/tools"
android:id="@+id/card_view"
app:cardUseCompatPadding="true"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="05dp"
android:layout_marginTop="05dp"
card_view:cardElevation="12dp">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="60dp"
android:background="@color/bg">
<View
android:layout_width="3dp"
android:layout_height="match_parent"
android:background="@color/cardLineColor"></View>
<LinearLayout
android:id="@+id/linearLayout6"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:layout_marginEnd="10dp"
android:layout_marginLeft="10dp"
android:layout_marginRight="10dp"
android:layout_marginStart="10dp"
android:orientation="vertical">
<TextView
android:id="@+id/txt_id"
android:layout_width="103dp"
android:layout_height="wrap_content"
android:text="ID"
android:textColor="@color/white" />
<TextView
android:id="@+id/txt_date"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="05dp"
android:text="23/3/2015"
android:textColor="@color/textColor"
android:textSize="10sp" />
</LinearLayout>
<TextView
android:id="@+id/txt_trans_type"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignTop="@+id/linearLayout6"
android:layout_centerHorizontal="true"
android:text="sent money"
android:textColor="@color/white"
android:textStyle="bold" />
<LinearLayout
android:id="@+id/linearLayout8"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentEnd="true"
android:layout_alignParentRight="true"
android:layout_alignTop="@+id/linearLayout6"
android:layout_marginEnd="10dp"
android:layout_marginLeft="10dp"
android:layout_marginRight="10dp"
android:layout_marginStart="10dp"
android:layout_toEndOf="@+id/txt_trans_type"
android:layout_toRightOf="@+id/txt_trans_type"
android:orientation="vertical">
<TextView
android:id="@+id/txt_balance"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="end"
android:text="$3214"
android:textAlignment="viewEnd"
android:textColor="@color/white"
android:textStyle="bold" />
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="end"
android:layout_marginTop="05dp"
android:text="@string/balance"
android:textAlignment="viewEnd"
android:textColor="@color/white"
android:textSize="10sp" />
</LinearLayout>
</RelativeLayout>
</android.support.v7.widget.CardView>
<RelativeLayout
android:id="@+id/relativeLayout_detail"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:visibility="gone">
<RelativeLayout
android:id="@+id/relativeLayout1"
android:layout_width="match_parent"
android:layout_height="60dp"
android:layout_alignParentEnd="true"
android:layout_alignParentRight="true"
android:background="@drawable/trans_background">
<View
android:id="@+id/view"
android:layout_width="2dp"
android:layout_height="match_parent"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_alignParentTop="true"
android:layout_marginBottom="2dp"
android:layout_marginTop="2dp"
android:background="@color/cardLineColor1"></View>
<LinearLayout
android:id="@+id/linearLayout"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_centerVertical="true"
android:layout_marginEnd="10dp"
android:layout_marginLeft="10dp"
android:layout_marginRight="10dp"
android:layout_marginStart="10dp"
android:layout_toLeftOf="@+id/linearLayout86"
android:layout_toStartOf="@+id/linearLayout86"
android:orientation="vertical">
<TextView
android:id="@+id/txt_vendor"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="@string/vendor"
android:textColor="@color/lightGrey" />
<TextView
android:id="@+id/txt"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="05dp"
android:text="@string/vendor"
android:textColor="@color/white"
android:textSize="10sp" />
</LinearLayout>
<LinearLayout
android:id="@+id/linearLayout86"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:layout_marginEnd="10dp"
android:layout_marginRight="10dp"
android:orientation="vertical">
<TextView
android:id="@+id/txt_trans_id"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="ID"
android:textColor="@color/lightGrey" />
<TextView
android:id="@+id/txt_7"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="05dp"
android:text="@string/transId"
android:textColor="@color/white"
android:textSize="10sp" />
</LinearLayout>
</RelativeLayout>
<RelativeLayout
android:id="@+id/relativeLayout2"
android:layout_width="match_parent"
android:layout_height="60dp"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_below="@+id/relativeLayout1"
android:background="@drawable/trans_background">
<View
android:layout_width="2dp"
android:layout_height="match_parent"
android:layout_marginBottom="2dp"
android:layout_marginTop="2dp"
android:background="@color/cardLineColor1"></View>
<LinearLayout
android:id="@+id/linearLayout9"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true"
android:layout_centerVertical="true"
android:layout_marginEnd="10dp"
android:layout_marginLeft="10dp"
android:layout_marginRight="10dp"
android:layout_marginStart="10dp"
android:orientation="vertical">
<TextView
android:id="@+id/txt_credit"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="$5858.0"
android:textColor="@color/lightGrey" />
<TextView
android:id="@+id/txt5"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="05dp"
android:text="@string/credit"
android:textColor="@color/white"
android:textSize="10sp" />
</LinearLayout>
</RelativeLayout>
</RelativeLayout>
</LinearLayout>
适配器:
public class TransactionHistoryListAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
private List<Transaction> transactionList;
private Context mContext;
static final int TYPE_LOAD_TRANS = 0;
public TransactionHistoryListAdapter(List<Transaction> transactionsList, Context context) {
this.mContext = context;
this.transactionList = transactionsList;
}
@Override
public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
RecyclerView.ViewHolder viewHolder = null;
LayoutInflater inflater = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
switch (viewType) {
case TYPE_LOAD_TRANS:
View v_header = inflater.inflate(R.layout.transaction_item_layout, parent, false);
viewHolder = new TransactionHistoryListHolder(v_header);
break;
}
return viewHolder;
}
@Override
public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
if (getItemViewType(position) == TYPE_LOAD_TRANS) {
TransactionHistoryListHolder transsHolder = (TransactionHistoryListHolder) holder;
retriveAllTrans(transsHolder, position);
} else {
}
}
public void retriveAllTrans(final TransactionHistoryListHolder holder, final int position) {
final Transaction data = transactionList.get(position);
holder.txt_id.setText(data.getId());
holder.txt_date.setText(data.getDate());
holder.txt_trans_type.setText(data.getType());
holder.txt_balance.setText(data.getBalance());
holder.lay_row.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
holder.relativeLayout.setVisibility(View.VISIBLE);
}
});
}
@Override
public int getItemViewType(int position) {
Transaction obj = transactionList.get(position);
if (obj.typeToDisp == 0) {
return TYPE_LOAD_TRANS;
}
return super.getItemViewType(position);
}
@Override
public int getItemCount() {
return transactionList.size();
}
}
公共类TransactionHistoryListAdapter扩展了RecyclerView.Adapter{
私人清单交易清单;
私有上下文;
静态最终整数类型\负载\传输=0;
公共事务HistoryListAdapter(列表事务列表,上下文){
this.mContext=上下文;
this.transactionList=transactionList;
}
@凌驾
public RecyclerView.ViewHolder onCreateViewHolder(视图组父级,int-viewType){
RecyclerView.ViewHolder ViewHolder=null;
LayoutInflater充气器=(LayoutInflater)mContext.getSystemService(Context.LAYOUT\u充气器\u服务);
开关(视图类型){
箱体类型\负载\变速箱:
查看v_标题=充气机。充气(R.layout.transaction_item_布局,父项,false);
viewHolder=新的TransactionHistoryListHolder(v_标题);
打破
}
返回视图持有者;
}
@凌驾
BindViewHolder上的公共无效(RecyclerView.ViewHolder,int位置){
如果(getItemViewType(位置)=类型\u加载\u传输){
TransactionHistoryListHolder transsHolder=(TransactionHistoryListHolder)持有人;
RetrieveAllTrans(transsHolder,位置);
}否则{
}
}
公共无效检索AllTrans(最终交易历史记录持有人,最终int位置){
最终交易数据=transactionList.get(位置);
holder.txt_id.setText(data.getId());
holder.txt_date.setText(data.getDate());
holder.txt_trans_type.setText(data.getType());
holder.txt_balance.setText(data.getBalance());
holder.lay_row.setOnClickListener(新视图.OnClickListener(){
@凌驾
公共void onClick(视图){
holder.relativeLayout.setVisibility(视图可见);
}
});
}
@凌驾
public int getItemViewType(int位置){
Transaction obj=transactionList.get(位置);
if(obj.typeToDisp==0){
返回类型\负载\传输;
}
返回super.getItemViewType(位置);
}
@凌驾
public int getItemCount(){
返回transactionList.size();
}
}
我们怎么做
编辑:
我试着这样做:
public class TransactionHistoryListAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
public TransactionHistoryListAdapter(List<Transaction> transactionsList, Context context) {
this.mContext = context;
this.transactionList = transactionsList;
}
@Override
public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
RecyclerView.ViewHolder viewHolder = null;
LayoutInflater inflater = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
switch (viewType) {
case TYPE_LOAD_TRANS:
View v_header = inflater.inflate(R.layout.transaction_item_layout, parent, false);
viewHolder = new TransactionHistoryListHolder(v_header);
break;
}
return viewHolder;
}
@Override
public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
final Transaction data = transactionList.get(position);
if (getItemViewType(position) == TYPE_LOAD_TRANS) {
TransactionHistoryListHolder transsHolder = (TransactionHistoryListHolder) holder;
if (data.isVisible()){
transsHolder.relativeLayout.setVisibility(View.VISIBLE);
} else {
transsHolder.relativeLayout.setVisibility(View.GONE);
}
retriveAllTrans(transsHolder, position);
} else {
}
}
public void retriveAllTrans(final TransactionHistoryListHolder holder, final int position) {
final Transaction data = transactionList.get(position);
holder.txt_id.setText(data.getId());
holder.txt_date.setText(data.getDate());
holder.txt_trans_type.setText(data.getType());
holder.txt_balance.setText(data.getBalance());
holder.lay_row.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
if (data.isVisible()) { // initially it will be falsedata.setVisible(false);
data.setVisible(true);
holder.relativeLayout.setVisibility(View.VISIBLE);
notifyDataSetChanged();
} else {
data.setVisible(false);
holder.relativeLayout.setVisibility(View.GONE);
notifyDataSetChanged();
}
}
});
for (int i=0;i< transactionList.size();i++)
{
if(i==position) {
data.setVisible(true);
}
else {
data.setVisible(false);
}
}
}
}
@Override
public int getItemViewType(int position) {
Transaction obj = transactionList.get(position);
if (obj.typeToDisp == 0) {
return TYPE_LOAD_TRANS;
}
return super.getItemViewType(position);
}
@Override
public int getItemCount() {
return transactionList.size();
}
}
公共类TransactionHistoryListAdapter扩展了RecyclerView.Adapter{
公共事务HistoryListAdapter(列表事务列表,上下文){
this.mContext=上下文;
this.transactionList=transactionList;
}
@凌驾
public RecyclerView.ViewHolder onCreateViewHolder(视图组父级,int-viewType){
RecyclerView.ViewHolder ViewHolder=null;
LayoutInflater充气器=(LayoutInflater)mContext.getSystemService(Context.LAYOUT\u充气器\u服务);
开关(视图类型){
箱体类型\负载\变速箱:
查看v_标题=充气机。充气(R.layout.transaction_item_布局,父项,false);
viewHolder=新的TransactionHistoryListHolder(v_标题);
打破
}
返回视图持有者;
}
@凌驾
BindViewHolder上的公共无效(RecyclerView.ViewHolder,int位置){
最终交易数据=transactionList.get(位置);
如果(getItemViewType(位置)=类型\u加载\u传输){
TransactionHistoryListHolder transsHolder=(TransactionHistoryListHolder)持有人;
if(data.isVisible()){
transsHolder.relativeLayout.setVisibility(View.VISIBLE);
}否则{
transsHolder.relativeLayout.setVisibility(View.GONE);
}
RetrieveAllTrans(transsHolder,位置);
}否则{
}
}
公共无效检索AllTrans(最终交易历史记录持有人,最终int位置){
最终交易数据=transactionList.get(位置);
holder.txt_id.setText(data.getId());
holder.txt_date.setText(data.getDate());
holder.txt_trans_type.setText(data.getType());
holder.txt_balance.setText(data.getBalance());
holder.lay_row.setOnClickListener(新视图.OnClickListener(){
@凌驾
公共void onClick(视图){
如果(data.isVisible()){//最初它将是falsedata.setVisible(false);
data.setVisible(true);
holder.relativeLayout.setVisibility(视图可见);
notifyDataSetChanged();
}否则{
data.setVisible(假);
holder.relativeLayout.setVisibility(View.GONE);
notifyDataSetChanged();
}
}
});
对于(int i=0;ipublic class Transaction {
.....
boolean isVisible;
public void setIsVisible(boolean isVisible){
this.isVisible = isVisible;
}
public boolean isVisible(){
return isVisible;
}
}
holder.lay_row.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
if (data.isVisble()) { // initially it will be false
data.setIsVisible(false);
holder.relativeLayout.setVisibility(View.GONE);
} else {
data.setIsVisible(true);
holder.relativeLayout.setVisibility(View.Visible);
}
}
});
@Override
public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
final Transaction data = transactionList.get(position);
if (getItemViewType(position) == TYPE_LOAD_TRANS) {
if (data.isVisible()){
holder.relativeLayout.setVisibility(View.VISIBLE);
} else {
holder.relativeLayout.setVisibility(View.GONE);
}
TransactionHistoryListHolder transsHolder = (TransactionHistoryListHolder) holder;
retriveAllTrans(transsHolder, position);
} else {
}
}