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Я искал эту проблему несколько дней. Вот структура приложения.Высота ExpandableListView влияет на отображение ChildView
activity_main.xml:
<android.support.v4.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<!-- The main content view -->
<FrameLayout
android:id="@+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<!-- The navigation drawer -->
<fragment android:id="@+id/fragment_drawer"
android:layout_width="240dp"
android:layout_height="match_parent"
android:layout_gravity="start"
android:name="ca.bluecross.ab.view.fragments.DrawerFragment"
tools:layout="@layout/abc_drawer_layout" />
</android.support.v4.widget.DrawerLayout>
Вот макет фрагмента (некоторые элементы не включены, чтобы сэкономить место для поста):
<?xml version="1.0" encoding="utf-8"?>
<ScrollView
android:layout_height="match_parent"
android:layout_width="fill_parent"
android:id="@+id/scrollView"
xmlns:android="http://schemas.android.com/apk/res/android">
<LinearLayout
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="fill_parent">
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
..
/>
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:paddingTop="2dp"
android:paddingBottom="5dp"
android:background="#21c1c1c1">
..
</RelativeLayout>
..
<ExpandableListView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/expLVClaims"
/>
.
..
<TableLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<TableRow
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="center_vertical">
<TableRow
..
</TableRow>
<TableRow
android:layout_width="fill_parent"
android:layout_height="wrap_content">
..
</TableRow>
<TableRow
android:layout_width="fill_parent"
android:layout_height="wrap_content">
..
</TableRow>
</TableLayout>
<RelativeLayout
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="5dp">
<Button
android:layout_width="160dp"
android:layout_height="wrap_content"
android:text="I have more to add"
android:id="@+id/btnAddMoreClaim"
android:layout_gravity="center_horizontal"
android:layout_span="2"
android:layout_centerVertical="true"
android:layout_marginLeft="40dp"
android:background="@color/abc_blue"
android:textColor="#FFFFFF" />
<Button
android:layout_width="160dp"
android:layout_height="wrap_content"
android:text="I'm ready to submit"
android:id="@+id/btnReadyToSubmitClaim"
android:layout_span="2"
android:layout_marginLeft="5dp"
android:layout_toRightOf="@+id/btnAddMoreClaim"
android:background="@color/abc_blue"
android:textColor="#FFF" />
</RelativeLayout>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="5dp">
<Button
android:layout_width="160dp"
android:layout_height="wrap_content"
android:text="Cancel"
android:id="@+id/btnCancelEnterClaim"
android:layout_alignWithParentIfMissing="false"
android:layout_centerInParent="true"
android:background="@color/abc_blue"
android:textColor="#FFF" />
</RelativeLayout>
</LinearLayout>
</ScrollView>
Вот макет для заголовка группы:
<?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="wrap_content">
<ImageView
android:layout_width="20dp"
android:layout_height="20dp"
android:id="@+id/imgIndicator"
android:src="@drawable/icon_collapse"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Provider name"
android:id="@+id/txtProviderName"
android:layout_toRightOf="@+id/imgIndicator" />
<ImageView
android:layout_width="20dp"
android:layout_height="20dp"
android:id="@+id/imgDelete"
android:src="@drawable/icon_cross_delete"
android:layout_toLeftOf="@+id/imgEdit" />
<ImageView
android:layout_width="20dp"
android:layout_height="20dp"
android:id="@+id/imgEdit"
android:layout_alignParentEnd="true"
android:src="@drawable/icon_edit" />
</RelativeLayout>
Вот ребенок расположение:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical"
android:layout_width="match_parent" android:layout_height="match_parent"
android:background="#59868686">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="2dp"
android:layout_marginBottom="2dp"
android:id="@+id/relativeLayoutServiceDate">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Date of service"
android:id="@+id/txtClaimDetailServiceDateLabel"
android:layout_alignParentStart="true"
android:textStyle="bold" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Feb 10, 2015"
android:id="@+id/txtClaimDetailServiceDate"
android:layout_alignParentEnd="true" />
</RelativeLayout>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="2dp"
android:layout_marginBottom="2dp"
android:id="@+id/relativeLayoutProvider">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Provider"
android:id="@+id/txtClaimDetailProviderLabel"
android:textStyle="bold"
android:layout_alignParentStart="true" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="provider's name"
android:id="@+id/txtClaimDetailProviderName"
android:layout_alignParentEnd="true" />
</RelativeLayout>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/relativeLayoutProduct">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Product or Service"
android:id="@+id/txtProductLabel"
android:textStyle="bold"
android:layout_alignParentStart="true" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Product/service"
android:id="@+id/txtProduct"
android:layout_alignParentEnd="true" />
</RelativeLayout>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="2dp"
android:layout_marginBottom="2dp"
android:id="@+id/relativeLayoutClaimAmount">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Claim amount($)"
android:id="@+id/txtClaimDetailClaimAmountLabel"
android:textStyle="bold"
android:layout_alignParentStart="true" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="0.00"
android:id="@+id/txtClaimDetailClaimAmount"
android:layout_alignParentEnd="true" />
</RelativeLayout>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="2dp"
android:layout_marginBottom="2dp"
android:id="@+id/relativeLayoutOtherAmount">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Other amount($)"
android:id="@+id/txtClaimDetailOtherAmountLabel"
android:textStyle="bold"
android:layout_alignParentStart="true" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="0.00"
android:id="@+id/txtClaimDetailOtherAmount"
android:layout_alignParentEnd="true" />
</RelativeLayout>
</LinearLayout>
Вот адаптер для ExpandableListView:
public class EclaimsExpandableListAdapter extends BaseExpandableListAdapter {
private ArrayList<ClaimGroup> groups;
public LayoutInflater inflater;
public Activity activity;
float mDensity;
private static final int MAX_ITEMS_MEASURED = 15;
public EclaimsExpandableListAdapter(Activity act, ArrayList<ClaimGroup> groups){
activity = act;
this.groups = groups;
inflater = act.getLayoutInflater();
mDensity = activity.getResources().getDisplayMetrics().density;
}
@Override
public Object getChild(int groupPosition, int childPosition) {
return groups.get(groupPosition).getChildren().get(childPosition);
}
@Override
public long getChildId(int groupPosition, int childPosition) {
//return 0;
return childPosition;
}
@Override
public View getChildView(int groupPosition, int childPosition, boolean isLastChild, View convertView, ViewGroup parent) {
Log.d("EclaimsExpandableListAdapter :: getChildView() :: ", "Start");
ClaimDetail child = (ClaimDetail)getChild(groupPosition, childPosition);
if(convertView == null){
convertView = inflater.inflate(R.layout.eclaims_claim_detail_health_layout,null);
}
TextView txtServiceDate = (TextView)convertView.findViewById(R.id.txtClaimDetailServiceDate);
txtServiceDate.setText(child.getmServiceDate());
TextView txtProviderName = (TextView)convertView.findViewById(R.id.txtClaimDetailProviderName);
txtProviderName.setText(child.getProvider().getName());
TextView txtClaimAmount = (TextView)convertView.findViewById(R.id.txtClaimDetailClaimAmount);
txtClaimAmount.setText(child.getClaimAmount().toString());
TextView txtOtherAmout = (TextView)convertView.findViewById(R.id.txtClaimDetailOtherAmount);
if(child.getOtherAmount() == null){
txtOtherAmout.setVisibility(View.GONE);
}else{
txtOtherAmout.setText(child.getOtherAmount().toString());
}
return convertView;
}
@Override
public int getChildrenCount(int grpPostion) {
System.out.println("Group position :: " + grpPostion);
return groups.get(grpPostion).getChildren().size();
}
@Override
public Object getGroup(int groupPosition) {
return groups.get(groupPosition);
}
@Override
public int getGroupCount() {
return groups.size();
}
@Override
public long getGroupId(int groupPosition) {
return groupPosition;
}
@Override
public View getGroupView(final int groupPosition, boolean isExpanded, View convertView, ViewGroup parent) {
Log.d("EclaimsExpandableListAdapter :: getGroupView() :: ", "Start");
if (convertView == null) {
convertView = inflater.inflate(R.layout.eclaims_claim_group_row, null);
}
/*TextView claimsLabel = (TextView)activity.findViewById(R.id.txtClaimItemsLabel);
if(groups.isEmpty()){
claimsLabel.setVisibility(View.GONE);
}else{
claimsLabel.setVisibility(View.VISIBLE);
}*/
ClaimGroup group = (ClaimGroup) getGroup(groupPosition);
ImageView indicator = (ImageView)convertView.findViewById(R.id.imgIndicator);
int nH = 0;
if(isExpanded){
indicator.setImageResource(R.drawable.icon_expand);
//nH = measureChildrenHeight(groupPosition);
}else{
indicator.setImageResource(R.drawable.icon_collapse);
//nH = convertView.getMeasuredHeight();
}
//parent.getLayoutParams().height = (int) (nH * mDensity);
//parent.invalidate();
TextView providerName = (TextView)convertView.findViewById(R.id.txtProviderName);
providerName.setText(group.getProvider().getName());
ImageView imgDelete = (ImageView)convertView.findViewById(R.id.imgDelete);
imgDelete.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
AlertDialog.Builder builder = new AlertDialog.Builder(activity);
String confirmation = activity.getString(R.string.eclaims_delete_claim_confirmation);
builder.setMessage(confirmation);
builder.setPositiveButton(R.string.alert_Cancel, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
// Do nothing
}
});
builder.setNegativeButton(R.string.alert_OK, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
groups.remove(groupPosition);
notifyDataSetChanged();
}
});
AlertDialog dialog = builder.create();
dialog.show();
}
});
ImageView imgEdit = (ImageView)convertView.findViewById(R.id.imgEdit);
imgEdit.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
AlertDialog.Builder builder = new AlertDialog.Builder(activity);
String confirmation = activity.getString(R.string.eclaims_edit_claim_confirmation);
builder.setMessage(confirmation);
builder.setPositiveButton(R.string.alert_Cancel, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
// Do nothing
}
});
builder.setNegativeButton(R.string.alert_OK, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
// first: remove from the completed claims
Provider selectedProvider = ((ClaimGroup)getGroup(groupPosition)).getProvider();
ClaimGroup parent = groups.remove(groupPosition);
List<Product> prodList = parent.getProductList(); // retrieved the saved product list
ClaimDetail child = parent.getChildren().get(0); // there is only one child
Product selectedProduct = child.getProduct();
notifyDataSetChanged();
// second: populate the fields in claim detail block
TextView serviceDate = (TextView)activity.findViewById(R.id.txtServiceDate);
serviceDate.setText(child.getmServiceDate());
Spinner spinnerProvider = (Spinner)activity.findViewById(R.id.spinnerProviders);
ArrayAdapter<Provider> adapterProvider = (ArrayAdapter<Provider>)spinnerProvider.getAdapter();
int size = adapterProvider.getCount();
int pos_seletion = 0;
for(int i=0; i<size; i++){
Provider prvd = adapterProvider.getItem(i);
if(selectedProvider.equals(prvd)){
pos_seletion = i;
break;
}
}
System.out.println("Selected position for provider list :: " + pos_seletion);
spinnerProvider.setSelection(pos_seletion);
adapterProvider.notifyDataSetChanged();// do we need to notify?
Spinner spinnerProduct = (Spinner)activity.findViewById(R.id.spinnerProducts);
ArrayAdapter<Product> adapterProduct = (ArrayAdapter <Product>)spinnerProduct.getAdapter();
size = prodList.size();
pos_seletion = 0;
for(int j=0; j<size; j++){
Product prod = prodList.get(j);
if(selectedProduct.equals(prod)){
pos_seletion = j;
break;
}
}
System.out.println("Selected position for product list :: " + pos_seletion);
adapterProduct.clear();
adapterProduct.addAll(prodList);
spinnerProduct.setSelection(pos_seletion);
adapterProduct.notifyDataSetChanged(); // do we need to notify?
EditText claimAmt = (EditText)activity.findViewById(R.id.editClaimAmount);
claimAmt.setText(child.getClaimAmount().toString());
EditText otherAmt = (EditText)activity.findViewById(R.id.editOtherAmount);
if(child.getOtherAmount() != null){
otherAmt.setText(child.getOtherAmount().toString());
}
}
});
AlertDialog dialog = builder.create();
dialog.show();
}
});
return convertView;
}
@Override
public boolean hasStableIds() {
return false;
}
@Override
public boolean isChildSelectable(int groupPosition, int childPosition) {
return false;
}
@Override
public void onGroupCollapsed(int groupPosition) {
super.onGroupCollapsed(groupPosition);
}
@Override
public void onGroupExpanded(int groupPosition) {
super.onGroupExpanded(groupPosition);
}
}
Вот поведение: при нажатии на заголовок группы , ни один детский вид d играет. Из LogCat я вижу, что getViewGroup() в адаптере вызывается дважды, но getChildView() не вызывается вообще. После поиска в Интернете и проверки их, я все еще не могу получить представление ребенка, когда вы нажимаете на заголовок группы, но когда я попытался установить высоту ExpanandableListView с высотой исправления, скажем, 400dp, вот так:
<ExpandableListView xmlns:
android:layout_width="match_parent"
android:layout_height="400dp"
android:id="@+id/expLVClaims"/>
вид ребенка затем расширяется и свертывается, как ожидалось. Но дело в том, что, поскольку фиксированная высота сделает ExpandableListView занимают 400dp пространства по вертикали, даже никаких данных в адаптере вообще, что является нежелательным поведением.
Может кто-нибудь бросить какие-то намеки?
Заранее благодарен! Шона