滚动期间检查简单的游标适配器项目列表视图中未核对(List view with simple cur

2019-10-17 07:56发布

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我有问题，我不能找到这么回答 - 解决上那么，约太多不同的问题，并没有工作，所有的问题。 问题是 -
1. ListView中点击了排（点击之后，他们都标有蓝色coolor背景，并检查箱）失去它们的beeing点击（选中的复选框和颜色）滚动后的痕迹。
2.更-其他行甚至滚动未点击时标。
ListView控件绑定到我的自定义简单的游标适配器从SQLite数据库获取数据。 列表视图中的每一行有文本框和一个复选框的列 - 在这样的ListView默认选择题模式选择不会在我的情况下工作 - 我用onItemClick获得选择的项目。 在ListView的活动我处理检查了我自己的列表中的项目。 ListView控件也是一个Horizo​​ntalScrollView。

因此，这些都是我的课和布局：

MyListActivity 

public class MyListActivity extends ListActivity
    { .....
    public void initComponents()
    {
        baza = dbMan.openDB(true);
        cursorListaFaktur = wyswietlWszystkieTowary();
        startManagingCursor(cursorListaFaktur);
                fakturyLista = this.getListView();
        fakturyLista.setScrollContainer(true);
        fakturyLista.setScrollingCacheEnabled(true);

        fakturyLista.setItemsCanFocus(false);
        fakturyLista.setTextFilterEnabled(true);
        fakturyLista.setItemChecked(0, true);


        String[] columns = new String[] { "NRDOK", "NAZWADOK", "ANULOWANY",
                "NAZWASKR", "DATA", "SUMA", "MIEJSCOWOSC", "TERMIN",
                "WYEKSPORTOWANY", "MSPRZ_DOKUMENT.UWAGI" };

        int[] kontrolki = new int[] { R.id.ID_FakturyRow_NrFakt,
                R.id.ID_FakturyRow_Typ, R.id.ID_FakturyRow_Anulowany,
                R.id.ID_FakturyRow_DataSprzed,  
                                R.id.ID_FakturyRow_Kontrahent,
                R.id.ID_FakturyRow_Suma, R.id.ID_FakturyRow_Miejscowosc,
                R.id.ID_FakturyRow_Termin, R.id.ID_FakturyRow_Wyeksp,
                R.id.ID_FakturyRow_Uwagi };

        String[] columnsRaportKasowy = new String[] { "NRDOK", "NAZWADOK",
                "GOTOWKA", "GOTOWKA", "NAZWASKR", "DATA", "UWAGI" };

        int[] kontrolkiRaportKasowy = new int[] {
                R.id.ID_RaportKasowyRow_NrFakt,
                                R.id.ID_RaportKasowyRow_Typ,
                R.id.ID_RaportKasowyRow_Wplata,
                R.id.ID_RaportKasowyRow_Wyplata,
                R.id.ID_RaportKasowyRow_Kontrahent,
                R.id.ID_RaportKasowyRow_DataSprzed,
                R.id.ID_RaportKasowyRow_Uwagi };

        if (raportKasowy)
        {
            adapterFaktury = new MSprzedazRaportKasowyAdapter(this,
                  R.layout.raportkasowy_row, cursorListaFaktur,  
                  columnsRaportKasowy,   kontrolkiRaportKasowy);
        }
        else
        {
            adapterFaktury = new 
                        MSprzedazListViewAdapter(this,R.layout.faktury_row,
                         cursorListaFaktur, columns, kontrolki);
        }
            fakturyLista.setOnItemClickListener(new OnItemClickListener() {

                public void onItemClick(AdapterView<?> arg0, View arg1,
                        int arg2, long arg3)
                {
                    LinearLayout linLay = (LinearLayout) arg1;
                    ArrayList<View> kontrolki = arg1.getTouchables();
                    CheckBox chBox = (CheckBox) kontrolki.get(0);
                    chBox.setChecked(!chBox.isChecked());
                    Cursor cursor = adapterFaktury.getCursor();
                    cursor.moveToPosition(arg2);
                    String tekstKom = "";
                              if(MSprzedazUtils.znajdzIdWliscieZazn(
                              cursor.getInt(cursor.getColumnIndex("_id"))
                              , listaZaznaczonych) == null)
                    {

            listaZaznaczonych.add(cursor.getInt(cursor.getColumnIndex("_id")));

            linLay.setBackgroundColor(Color.rgb(110, 151, 186));

                        MSprzedazUtils.wpisDoLoga(tekstKom);

                    }
                    else
                    {
                        try
                        {
                        listaZaznaczonych.remove((int)  
                                            MSprzedazUtils.znajdzIdWliscieZazn(
                                          cursor.getInt(cursor.getColumnIndex("_id")),
                                           listaZaznaczonych));
                        MSprzedazUtils.wpisDoLoga(tekstKom);
                        }
                        catch(IndexOutOfBoundsException ex)
                        {


                        MSprzedazUtils.wpisDoLoga("Błąd"+tekstKom);
                        }
                    }
                }
            });

MySimpleCursorAdapter 

public class MySimpleCursorAdapter extends SimpleCursorAdapter
        {
            class ViewHolder
        {
            CheckBox chckBoxZazn;
            LinearLayout linLay;
            TextView nrDok;
            TextView typDok;
            boolean isSelected;
            TextView txtData;
            TextView txtKontrahent;
            TextView txtSuma;
            TextView txtAnulowany;
            TextView txtMiejscowosc;
            TextView txtTermin;
            TextView txtWyeksp;
            TextView txtUwagi;
        }

        @Override
        public void bindView(View convertView, Context context, Cursor cursor)
        {
            if (convertView.getTag() != null)
                holder = (ViewHolder) convertView.getTag();
            {
                // holder.linLay = (LinearLayout)convertView;
                holder.chckBoxZazn = (CheckBox) convertView.findViewById(R.id.ID_FakturyRow_ChckBoxFakturyWybor);
                holder.nrDok = (TextView) convertView.findViewById(R.id.ID_FakturyRow_NrFakt);
                holder.typDok = (TextView) convertView.findViewById(R.id.ID_FakturyRow_Typ);
                holder.txtAnulowany = (TextView) convertView.findViewById(R.id.ID_FakturyRow_Anulowany);
                holder.txtData = (TextView) convertView.findViewById(R.id.ID_FakturyRow_Kontrahent);
                holder.txtKontrahent = (TextView) convertView.findViewById(R.id.ID_FakturyRow_DataSprzed);
                holder.txtMiejscowosc = (TextView) convertView.findViewById(R.id.ID_FakturyRow_Miejscowosc);
                holder.txtSuma = (TextView) convertView.findViewById(R.id.ID_FakturyRow_Suma);
                holder.txtTermin = (TextView) convertView.findViewById(R.id.ID_FakturyRow_Termin);
                holder.txtWyeksp = (TextView) convertView.findViewById(R.id.ID_FakturyRow_Wyeksp);
                holder.txtUwagi = (TextView) convertView.findViewById(R.id.ID_FakturyRow_Uwagi);

            }

            holder.chckBoxZazn.setTag(cursor.getPosition());


            holder.nrDok.setText(cursor.getString(cursor.getColumnIndex("NRDOK")));
            holder.typDok.setText(cursor.getString(cursor.getColumnIndex("NAZWADOK")));
            if (cursor.getString(cursor.getColumnIndex("DATA")) != null)
                holder.txtData.setText(cursor.getString(cursor.getColumnIndex("DATA")).substring(0, 10));
            else
                holder.txtData.setText("-");
            if (cursor.getInt(cursor.getColumnIndex("ANULOWANY")) == 0)
                holder.txtAnulowany.setText("NIE");
            else
                holder.txtAnulowany.setText("TAK");

            if (cursor.getString(cursor.getColumnIndex("NAZWASKR")) != null)
                holder.txtKontrahent.setText(cursor.getString(cursor.getColumnIndex("NAZWASKR")));
            else
                holder.txtKontrahent.setText("-");
            if (cursor.getString(cursor.getColumnIndex("MIEJSCOWOSC")) != null)
                holder.txtMiejscowosc.setText(cursor.getString(cursor.getColumnIndex("MIEJSCOWOSC")));
            else
                holder.txtMiejscowosc.setText("-");
            holder.txtSuma.setText(cursor.getString(cursor.getColumnIndex("SUMA")));
            if (cursor.getInt(cursor.getColumnIndex("WYEKSPORTOWANY")) == 0)
            {
                holder.txtWyeksp.setText("NIE");
                holder.txtWyeksp.setBackgroundColor(Color.BLACK);
            }
            else
            {
                holder.txtWyeksp.setText("TAK");
                convertView.setBackgroundColor(Color.DKGRAY);
            }
            if (cursor.getString(cursor.getColumnIndex("TERMIN")) != null)
                holder.txtTermin.setText(cursor.getString(cursor.getColumnIndex("TERMIN")).substring(0, 10));
            else
                holder.txtTermin.setText("-");
            holder.txtUwagi.setText(cursor.getString(cursor.getColumnIndex("UWAGI")));

            if (cursor.getCount() > 0 && cursor.getPosition() < cursor.getColumnCount())
                holder.chckBoxZazn.setChecked(jestZaznaczony[cursor.getPosition()]);

        }

        @Override
        public void onClick(View v)
        {
            if (v.isFocusable())
            {
                jestZaznaczony[cursor.getPosition()] = !jestZaznaczony[cursor.getPosition()];
                holder.chckBoxZazn.setChecked(jestZaznaczony[cursor.getPosition()]);

            }
    }

}

listview_row.xml 

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/ID_FakturyRow_KontrRow"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
>

<CheckBox
    android:id="@+id/ID_FakturyRow_ChckBoxFakturyWybor"
    android:layout_width="30dp"
    android:layout_height="30dp"
    android:focusable="false"
    android:focusableInTouchMode="false"
    android:text=""
    android:textAppearance="?android:attr/textAppearanceSmall"
    android:textSize="10dp"
    true="" />

<TextView
    android:id="@+id/ID_FakturyRow_NrFakt"
    android:layout_width="120dp"
    android:layout_height="wrap_content"
    android:layout_marginLeft="0dp"
    android:layout_marginRight="5dp"
    android:focusable="false"
    android:maxLength="10"
    android:maxLines="1"
    android:text="NrFakt"
    android:textAppearance="?android:attr/textAppearanceSmall"
    true="" />

<TextView
    android:id="@+id/ID_FakturyRow_Typ"
    android:layout_width="40dp"
    android:layout_height="wrap_content"
    android:layout_marginLeft="0dp"
    android:layout_marginRight="5dp"
    android:focusable="false"
    android:maxLength="4"
    android:maxLines="1"
    android:text="Typ"
    android:textAppearance="?android:attr/textAppearanceSmall"
    true="" />

<TextView
    android:id="@+id/ID_FakturyRow_Anulowany"
    android:layout_width="46dp"
    android:layout_height="wrap_content"
    android:layout_marginLeft="10dp"
    android:layout_marginRight="20dp"
    android:maxLength="8"
    android:maxLines="1"
    android:text="Anulowany"
    android:textAppearance="?android:attr/textAppearanceSmall"
    android:focusable="false" />

<TextView
    android:id="@+id/ID_FakturyRow_Kontrahent"
    android:layout_width="80dp"
    android:layout_height="wrap_content"
    android:layout_marginLeft="0dp"
    android:layout_marginRight="10dp"
    android:maxLength="14"
    android:maxLines="1"
    android:text="Kontrahent"
    android:focusable="false"
    android:textAppearance="?android:attr/textAppearanceSmall" />

<TextView
    android:id="@+id/ID_FakturyRow_DataSprzed"
    android:layout_width="120dp"
    android:layout_height="wrap_content"
    android:layout_marginLeft="0dp"
    android:layout_marginRight="10dp"
    android:text="Data"
    android:focusable="false"
    android:textAppearance="?android:attr/textAppearanceSmall" />

<TextView
    android:id="@+id/ID_FakturyRow_Suma"
    android:layout_width="65dp"
    android:layout_height="wrap_content"
    android:layout_marginLeft="10dp"
    android:layout_marginRight="0dp"
    android:maxLines="1"
    android:text="Suma"
    android:focusable="false"
    android:textAppearance="?android:attr/textAppearanceSmall" />

<TextView
    android:id="@+id/ID_FakturyRow_Miejscowosc"
    android:layout_width="80dp"
    android:layout_height="wrap_content"
    android:layout_marginLeft="10dp"
    android:layout_marginRight="0dp"
    android:text="Miejscowosc"
    android:focusable="false"
    android:textAppearance="?android:attr/textAppearanceSmall" />

<TextView
    android:id="@+id/ID_FakturyRow_Termin"
    android:layout_width="75dp"
    android:layout_height="wrap_content"
    android:layout_marginLeft="35dp"
    android:layout_marginRight="25dp"
    android:maxLength="18"
    android:maxLines="1"
    android:text="Termin"
    android:focusable="false"
    android:textAppearance="?android:attr/textAppearanceSmall" />

<TextView
    android:id="@+id/ID_FakturyRow_Wyeksp"
    android:layout_width="70dp"
    android:layout_height="wrap_content"
    android:layout_marginLeft="35dp"
    android:layout_marginRight="0dp"
    android:maxLength="16"
    android:maxLines="1"
    android:text="Wyeksp"
    android:focusable="false"
    android:textAppearance="?android:attr/textAppearanceSmall" />

<TextView
    android:id="@+id/ID_FakturyRow_Uwagi"
    android:layout_width="40dp"
    android:layout_height="wrap_content"
    android:layout_marginLeft="10dp"
    android:layout_marginRight="0dp"
    android:text="Termin"
    android:focusable="false"
    android:textAppearance="?android:attr/textAppearanceSmall" />

listview_layout.xml 

<HorizontalScrollView
        xmlns:android="http://schemas.android.com/apk/res/android"
        android:id="@+id/scroller"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:layout_marginBottom="10dp"
        android:fillViewport="true" >

        <LinearLayout
            xmlns:android="http://schemas.android.com/apk/res/android"
            android:id="@+id/ID_FakturyListaButtons_HeaderLayoutWrapper"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginBottom="25dp" 
            android:orientation="vertical" >

            ....... // Text Views as Listview header
         </LinearLayout>
         <RelativeLayout
                android:id="@+id/ID_FakturyListaButtons_TabListaLayout"
                android:layout_width="fill_parent"
                android:layout_height="match_parent"
                android:orientation="vertical" 

                >

                <ListView
                    xmlns:android="http://schemas.android.com/apk/res/android"
                    android:id="@android:id/android:list"
                    android:layout_width="match_parent"
                    android:layout_height="match_parent"


                   >
                </ListView>
            </RelativeLayout>
        </LinearLayout>
 </HorizontalScrollView>

我怎么可能让许多列是ListView控件来显示我点击ALL和唯一项目？

Answer 1:

这是因为Android的回收在ListView行。 为了克服这一点，你需要保存行状态（选中与否）在某些列表或东西，用它来设定一个行选中或取消选中。 在您的getView（）函数，你可以做以下检查。 这里enabledItems是一个列表 

if (enabledItems.contains(eventTime)) {
viewHolder.getCheckBox().setChecked(true);
} else {
viewHolder.getCheckBox().setChecked(false);
}

另外，看看有关回收下面的文章。 http://mobile.cs.fsu.edu/the-nuance-of-android-listview-recycling-for-n00bs/



Answer 2:

你必须自己保存检查状态，并通过你的onItemClicked方法进行修改。

如何适配器可能与检查状态数组看起来简单例子： 

public class ButtonCursorAdapter extends SimpleCursorAdapter {

    private Cursor c;
    private Context context;
    private Activity activity;
    public static int[] chkState;
    private int layout;

    public ButtonCursorAdapter(Context context, int layout, Cursor c,
            String[] from, int[] to) {
        super(context, layout, c, from, to);

        this.c = c;
        this.context = context;
        this.activity = (Activity) context;
        this.layout = layout;
        // create an array to hold checked state, use zero for un-checked and 1 for checked
        chkState = new int[c.getCount()];      // Set array size to # of elements in cursor
        for(int i=1; i<c.getCount(); i++){     // loop through array
            chkState[i] = 0;                   // set initial state to 0 - not checked
        }
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        if (convertView == null)
            convertView = View.inflate(context, layout, null);
        final int pos = position;
        View row = convertView;

        c.moveToPosition(position);

        //  do your data assignement stuff here

        //  set the state of your checkbox
        if (chkState[position] == 0) {
            //  set the checkbox to checked
        } else {
            //  set the checkbox to unchecked
        }
    return (row);       
    }
}


文章来源: List view with simple cursor adapter items checked are un-checked during scroll
标签： android listview cursor adapter
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