滚动期间检查简单的游标适配器项目列表视图中未检查
问题描述：
我有问题，我不能找那么回答 - 解决了对SO有关的地方太多不同的问题和没有工作的所有问题。
问题是 -
1。在ListView中点击行（点击之后，他们都标有蓝色背景coolor，并检查框）滚动后失去他们的beeing点击标记（选中的复选框和颜色）。结果
2。甚至更多 - 。其他行甚至滚动未点击时标结果
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在我的情况下工作 - 我用onItemClick获得所选项目。在ListView的活动我处理检查我自己的项目在列表中。
ListView控件中也有HorizontalScrollView。
I have problem that I couldn't find answer on SO - all problems solved on SO where about too much different issue and didn't work.
Problem is -
1. Clicked rows in ListView (after click they are marked with blue coolor background, and checked box) loose their marks of beeing clicked (checked checkbox and color) after scrolling.
2. Even more - other rows are marked during scroll even that are not clicked.
ListView is bound to my Custom Simple Cursor Adapter which gets data from SQLite database.
Each row of listview has many columns with textboxes and one checkbox - so default multiple choice mode selection in ListView doesn't work in my case - I use onItemClick to get selected items. In ListView Activity I handle checked items on my own in a list.
ListView is also in a HorizontalScrollView.
因此，这些都是我的课和布局：
So these are my classes and layouts:
MyListActivity
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
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
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
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显示所有和我点击的唯一项目？是的ListView
How can I possibly make that ListView with many columns to display ALL and ONLY items that I clicked?
答
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，用它来设置行选中或取消选中。
在你getView（）函数，你可以做以下检查。这里enabledItems是一个List
This is because Android recycles the rows in the listView. To overcome this, you need to save your row state (checked or not) in some List or something and use this to set a row checked or unchecked. In your getView() function, you can do the following check. Here enabledItems is a List
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/