java.lang.ClassCastException：android.widget.LinearLayout $ LayoutParams无法转换为android.widget.AbsListView $ LayoutParams [英] java.lang.ClassCastException: android.widget.LinearLayout$LayoutParams cannot be cast to android.widget.AbsListView$LayoutParams
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问题描述
我正在使用BaseExpandableListAdapter，如下所示。我没有传递列表，而是直接传递一个View作为子数据。并且子项计数始终返回1.，因为每个标题只有一个视图。
i am using a BaseExpandableListAdapter as follows. where instead of passing a list, i am directly passing a View to be a child data. and the child count is always returned as 1. as there is only one view per heading.
public class TaxAdapter extends BaseExpandableListAdapter{
private Context _context;
private ArrayList<String> _listDataHeader;
private HashMap<String, View> _listDataChild;
public TaxAdapter(Context context, ArrayList<String> taxListDataHeader,
HashMap<String, View> taxListDataChild) {
this._context = context;
this._listDataHeader = taxListDataHeader;
this._listDataChild = taxListDataChild;
}
@Override
public int getGroupCount() {
return this._listDataHeader.size();
}
@Override
public int getChildrenCount(int groupPosition) {
return 1;
}
@Override
public Object getGroup(int groupPosition) {
return this._listDataHeader.get(groupPosition);
}
@Override
public Object getChild(int groupPosition, int childPosition) {
return this._listDataChild.get(this._listDataHeader.get(groupPosition));
}
@Override
public long getGroupId(int groupPosition) {
return groupPosition;
}
@Override
public long getChildId(int groupPosition, int childPosition) {
return childPosition;
}
@Override
public boolean hasStableIds() {
return false;
}
@Override
public View getGroupView(int groupPosition, boolean isExpanded,
View convertView, ViewGroup parent) {
String headerTitle = (String) getGroup(groupPosition);
if (convertView == null) {
LinearLayout earningsContainer = new LinearLayout(_context);
LayoutInflater inflator = ((Activity)_context).getLayoutInflater();
convertView = inflator.inflate(R.layout.row_tax_explv_title,
earningsContainer, false);
((TextView) convertView.findViewById(R.id.explvTaxTitleText)).setText(headerTitle);
}
return convertView;
}
@Override
public View getChildView(int groupPosition, int childPosition,
boolean isLastChild, View convertView, ViewGroup parent) {
return (View)getChild(groupPosition, childPosition);
}
@Override
public boolean isChildSelectable(int groupPosition, int childPosition) {
return false;
}
}
以及从活动如下-
ArrayList<String> TaxListDataHeader = new ArrayList<String>();
HashMap<String, View> TaxListDataChild = new HashMap<String, View>();
TaxListDataHeader.add("Movie Shows");
TaxListDataChild.put("Movie Shows", moviesContainerView);
TaxListDataHeader.add("Theatre Shows");
TaxListDataHeader.add("Theatre Shows", theatreContainerView);
movieContainerView和theareContainerView是两个自定义的膨胀线性布局。
movieContainerView and theareContainerView are the two custom inflated linear layouts.like this
LayoutInflater inflator = ((Activity) context).getLayoutInflater();
View row = inflator.inflate(R.layout.row_movie_data,
movieMainContainer, false);
((TextView) row.findViewById(R.id.txtEmpInfoPopUpTitle)).setText(key);
((TextView) row.findViewById(R.id.txtEmpInfoPopUpValue)).setText(value);
return row;
我遇到了标题中的错误，但是日志没有这样指定文件名。
请建议可能在哪里发生错误。请建议可以做什么。
i am getting the error as in the title, but the logs do not specify any file name as such. Please suggest where the error might be occuring. Please suggest what can be done.
编辑：
这是堆栈跟踪
This is the stack trace
07-17 22:53:57.043: E/AndroidRuntime(5074): FATAL EXCEPTION: main
07-17 22:53:57.043: E/AndroidRuntime(5074): Process: com.synthesize.paysal, PID: 5074
07-17 22:53:57.043: E/AndroidRuntime(5074): java.lang.ClassCastException: android.widget.LinearLayout$LayoutParams cannot be cast to android.widget.AbsListView$LayoutParams
07-17 22:53:57.043: E/AndroidRuntime(5074): at android.widget.ListView.measureScrapChild(ListView.java:1183)
07-17 22:53:57.043: E/AndroidRuntime(5074): at android.widget.ListView.onMeasure(ListView.java:1149)
07-17 22:53:57.043: E/AndroidRuntime(5074): at android.view.View.measure(View.java:16497)
07-17 22:53:57.043: E/AndroidRuntime(5074): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5125)
07-17 22:53:57.043: E/AndroidRuntime(5074): at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1404)
07-17 22:53:57.043: E/AndroidRuntime(5074): at android.widget.LinearLayout.measureVertical(LinearLayout.java:695)
07-17 22:53:57.043: E/AndroidRuntime(5074): at android.widget.LinearLayout.onMeasure(LinearLayout.java:588)
07-17 22:53:57.043: E/AndroidRuntime(5074): at android.view.View.measure(View.java:16497)
07-17 22:53:57.043: E/AndroidRuntime(5074): at android.widget.ScrollView.measureChildWithMargins(ScrollView.java:1226)
07-17 22:53:57.043: E/AndroidRuntime(5074): at android.widget.FrameLayout.onMeasure(FrameLayout.java:310)
07-17 22:53:57.043: E/AndroidRuntime(5074): at android.widget.ScrollView.onMeasure(ScrollView.java:326)
07-17 22:53:57.043: E/AndroidRuntime(5074): at android.view.View.measure(View.java:16497)
07-17 22:53:57.043: E/AndroidRuntime(5074): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5125)
07-17 22:53:57.043: E/AndroidRuntime(5074): at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1404)
07-17 22:53:57.043: E/AndroidRuntime(5074): at android.widget.LinearLayout.measureVertical(LinearLayout.java:695)
07-17 22:53:57.043: E/AndroidRuntime(5074): at android.widget.LinearLayout.onMeasure(LinearLayout.java:588)
07-17 22:53:57.043: E/AndroidRuntime(5074): at android.view.View.measure(View.java:16497)
07-17 22:53:57.043: E/AndroidRuntime(5074): at android.widget.RelativeLayout.measureChildHorizontal(RelativeLayout.java:719)
07-17 22:53:57.043: E/AndroidRuntime(5074): at android.widget.RelativeLayout.onMeasure(RelativeLayout.java:455)
07-17 22:53:57.043: E/AndroidRuntime(5074): at android.view.View.measure(View.java:16497)
07-17 22:53:57.043: E/AndroidRuntime(5074): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5125)
07-17 22:53:57.043: E/AndroidRuntime(5074): at android.widget.FrameLayout.onMeasure(FrameLayout.java:310)
07-17 22:53:57.043: E/AndroidRuntime(5074): at android.view.View.measure(View.java:16497)
07-17 22:53:57.043: E/AndroidRuntime(5074): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5125)
07-17 22:53:57.043: E/AndroidRuntime(5074): at com.android.internal.widget.ActionBarOverlayLayout.onMeasure(ActionBarOverlayLayout.java:327)
07-17 22:53:57.043: E/AndroidRuntime(5074): at android.view.View.measure(View.java:16497)
07-17 22:53:57.043: E/AndroidRuntime(5074): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5125)
07-17 22:53:57.043: E/AndroidRuntime(5074): at android.widget.FrameLayout.onMeasure(FrameLayout.java:310)
07-17 22:53:57.043: E/AndroidRuntime(5074): at com.android.internal.policy.impl.PhoneWindow$DecorView.onMeasure(PhoneWindow.java:2291)
07-17 22:53:57.043: E/AndroidRuntime(5074): at android.view.View.measure(View.java:16497)
07-17 22:53:57.043: E/AndroidRuntime(5074): at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:1916)
07-17 22:53:57.043: E/AndroidRuntime(5074): at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1113)
07-17 22:53:57.043: E/AndroidRuntime(5074): at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1295)
07-17 22:53:57.043: E/AndroidRuntime(5074): at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1000)
07-17 22:53:57.043: E/AndroidRuntime(5074): at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5670)
07-17 22:53:57.043: E/AndroidRuntime(5074): at android.view.Choreographer$CallbackRecord.run(Choreographer.java:761)
07-17 22:53:57.043: E/AndroidRuntime(5074): at android.view.Choreographer.doCallbacks(Choreographer.java:574)
07-17 22:53:57.043: E/AndroidRuntime(5074): at android.view.Choreographer.doFrame(Choreographer.java:544)
07-17 22:53:57.043: E/AndroidRuntime(5074): at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:747)
07-17 22:53:57.043: E/AndroidRuntime(5074): at android.os.Handler.handleCallback(Handler.java:733)
07-17 22:53:57.043: E/AndroidRuntime(5074): at android.os.Handler.dispatchMessage(Handler.java:95)
07-17 22:53:57.043: E/AndroidRuntime(5074): at android.os.Looper.loop(Looper.java:136)
07-17 22:53:57.043: E/AndroidRuntime(5074): at android.app.ActivityThread.main(ActivityThread.java:5017)
07-17 22:53:57.043: E/AndroidRuntime(5074): at java.lang.reflect.Method.invokeNative(Native Method)
07-17 22:53:57.043: E/AndroidRuntime(5074): at java.lang.reflect.Method.invoke(Method.java:515)
07-17 22:53:57.043: E/AndroidRuntime(5074): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
07-17 22:53:57.043: E/AndroidRuntime(5074): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
07-17 22:53:57.043: E/AndroidRuntime(5074): at dalvik.system.NativeStart.main(Native Method)
编辑：
i试图用这样的列表视图包装线性布局，
i have tried to wrap the linear layout with a list view like this,
TaxListDataChild.put（ Theatre Show，（new
ListView（context））。addView（theatrerowContainer，
LayoutParams.MATCH_PARENT，LayoutParams.MATCH_PARENT））;
TaxListDataChild.put("Theatre Show", (new ListView(context)).addView(theatrerowContainer, LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT));
，但似乎第二个参数为空。
but it seems that the second parameter is void.
我正在填充新的Linearlayout（
I am populating the "new Linearlayout" (earningsContainer) in the xml like this with other linear layout rows.
for (int i = 0; i < taxMainObject.getTaxEarnings().size(); i++) {
earningsContainer.addView(getTaxEarningsRow(taxMainObject
.getTaxEarnings().get(i)));
totalEarnings += taxMainObject.getTaxEarnings().get(i)
.getTotalAmount();
}
earningsContainer.addView(getTaxTotalRow("GROSS TOTAL SALARY",
totalEarnings + ""));
并且行的xml是-
<?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"
android:gravity="right"
android:orientation="horizontal"
android:background="#ffeeeeee" >
<TextView
android:id="@+id/txtTotalText"
android:layout_width="180dp"
android:layout_height="wrap_content"
android:layout_marginLeft="15dp"
android:textAppearance="@android:attr/textAppearanceSmall"
android:textColor="#736F6E"
android:textSize="14sp"
android:textStyle="bold|italic" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="right"
android:gravity="right|center_vertical"
android:orientation="horizontal"
android:padding="2dp" >
<TextView
android:id="@+id/txtTotalValue"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:textAppearance="@android:attr/textAppearanceSmall"
android:textColor="#736F6E"
android:gravity="right"
android:textSize="14sp"
android:layout_weight="1"
android:textStyle="italic" />
</LinearLayout>
</LinearLayout>
推荐答案
尽管这与您的Java不相关，但我仍然有同样的错误。我在班级中拥有扩展AppCompatActivity，但是当我将其替换为扩展活动时，错误已解决。希望这对其他人有帮助，因为我被困了三个小时。乐于帮助
Although this is not related to your java but i still got same error. I had "extends AppCompatActivity" in my class but when i replaced it with "Extends Activity" Error was resolved. Hope this is helpful for someone else, as i was stuck for three hours on this. Happy to help
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