Checkbox state problem in ListView
Hello with regard to the known issue of unwanted checkboxes being checked while scrolling through a listview, can anyone please give me an idea how to use a checkedTextView properly so that i can maintain check state properly when scrolling through the list. I thought the listview takes care of maintaining the checkbox state when using a checkedtextView but that does not seem to be the case. or do i have to use the default Id for the checkedTextView. I can't seem to find an example that uses a cursorAdapter or a SimpleC开发者_如何学编程ursorAdapter for this case. Thank you
i have tried using this, but am not really sure what to do with the set tag position. here is a small piece of code:
//bindView() method in SimpleCursorAdapter
//viewHolder holder;
//Cursor c;
holder.checkedText = (CheckedTextView)view.findViewById(R.id.view_checked);
holder.checkedText.setTag(c.getPosition());
holder.checkedText.setOnClickListener(new View.OnClickListener() {
public void onClick(View v)
{
v.getTag();
((CheckedTextView) v).toggle();
}
});
my xml standard layout:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<ListView android:id="@android:id/list"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:choiceMode="multipleChoice"/>
<TextView android:id="@android:id/empty"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/no_notes"/>
</LinearLayout>
my custom layout:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="horizontal"
android:padding="6dp">
<LinearLayout
android:orientation="vertical"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="2dp">
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/viewNameText"
android:id="@+id/viewNameId">
</TextView>
</LinearLayout>
<LinearLayout
android:orientation="vertical"
android:gravity="center_horizontal"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_weight="1.0"
android:padding="2dp">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="start Date"
android:layout_gravity="right"
android:id="@+id/DateId">
</TextView>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="start Time"
android:layout_gravity="right"
android:id="@+id/TimeId">
</TextView>
</LinearLayout>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="right"
>
<CheckedTextView
android:id="@+id/title"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:checked="false"
android:focusable="false"
android:clickable="true"
android:textAppearance="?android:attr/textAppearanceLarge"
android:checkMark="?android:attr/listChoiceIndicatorMultiple"
/>
</LinearLayout>
</LinearLayout>
I thought the listview takes care of maintaining the checkbox state when using a checkedtextView but that does not seem to be the case.
It should, if your ListView
is android:choiceMode="multiple"
.
do i have to use the default Id for the checkedTextView
You might. The only times I have implemented a multiple choice ListView
, I have used the standard row layout rather than a custom one.
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