从动态创建的布局中删除arraylist中的重复值Android

Question

row.xml

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

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:orientation="vertical" android:layout_width="match_parent"
    android:layout_height="match_parent">

    <LinearLayout
        android:id="@+id/rowLinearLayoutItem"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:layout_marginRight="50dp"
        android:layout_marginLeft="50dp"
        android:baselineAligned="true" >

        <Button
            android:id="@+id/rowButtonRemove"
            android:text="-"
            android:layout_width="35dp"
            android:layout_height="35dp"
            android:background="@drawable/circle_button"/>

        <TextView
            android:id="@+id/rowItemCost"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:gravity="center"
            android:inputType="numberDecimal"
            android:ems="10"
            android:layout_weight="1" />

        <TextView
            android:id="@+id/rowItemTotal"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:gravity="center"
            android:inputType="numberDecimal"
            android:ems="10"
            android:layout_weight="1" />

    </LinearLayout>

</LinearLayout>

fragment.java

    @Override
    public void onClick(View v) {
        switch (v.getId()){
            case R.id.advButtonAddItem:
                String itemAddString = editBoxItemAdd.getText().toString();
                if (itemAddString.isEmpty()){
                    Toast.makeText(getActivity(), "Please Enter Item Cost", Toast.LENGTH_LONG).show();
                }
                else {
                    LayoutInflater layoutInflater = (LayoutInflater) getActivity().getBaseContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
                    final View addView = layoutInflater.inflate(R.layout.row, null);
                    final TextView rowItemTotal = (TextView) addView.findViewById(R.id.rowItemTotal);

                    Button rowButtonRemove = (Button) addView.findViewById(R.id.rowButtonRemove);

                    rowItemTotal.setText(editBoxItemAdd.getText().toString());

                    itemList.add(rowItemTotal.getText().toString());  

                    updateCost();

                    rowButtonRemove.setOnClickListener(new View.OnClickListener() {
                        @Override
                        public void onClick(View v) {
                            ((LinearLayout)addView.getParent()).removeView(addView);
                            itemList.remove(rowItemTotal.getText().toString()); //Remove inputted Item Cost into ArrayList itemList

                            updateCost();
                        }
                    });
                    row.addView(addView);
                }
                break;
        }
    }

Answer 1

((LinearLayout)addView.getParent()).removeView(addView);

它将始终删除以前添加的项目

因为addview是您使用的lastitem

因此将其更改为

((LinearLayout)addView.getParent()).removeView(v);