Hi! I'm trying to do something like task manager for android. Every
task has it's own params (like time, action, and so on). For now the
most important param is a task state: disable/enable. I use usual
checkbox as a state representation. All the tasks are stored in SQLite
database, so I wrote my CustomCursorAdapter. Then I run into mess.
What happens every time during scroll???? I debuged the programm and
saw a lot of bindView calls (in my CustomCursorAdapter). Then I
googled and saw a descision - using boolean array to store the states
of my component (example was about CustomArrayAdapter) but... the deal
is my checkbox change listener disables and enables a corresponding
task. If I use array - the states are correct but the system calls
OnCheckedChangeListener.
Next I downloaded google alarm clock (DeskClock) from GIT and saw how
they'd solved that problem.
They used DontPressWithParentLayout class what is an extension of
LinearLayout. Method setPressed is shown below:
@Override
public void setPressed(boolean pressed) {
// If the parent is pressed, do not set to pressed.
if (pressed && ((View) getParent()).isPressed()) {
return;
}
super.setPressed(pressed);
}
And usage:
<com.android.deskclock.DontPressWithParentLayout android:id="@+id/
indicator"
style="@style/alarm_list_left_column"
android:background="@drawable/clock_selector"
android:gravity="center"
android:orientation="vertical">
<CheckBox android:id="@+id/clock_onoff"
android:focusable="false"
android:clickable="false"
android:background="@drawable/indicator_clock_onoff"
android:duplicateParentState="true"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:layout_gravity="center"
android:button="@null" />
<ImageView android:id="@+id/bar_onoff"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:paddingTop="4dip"
android:src="@drawable/ic_indicator_off" />
</com.android.deskclock.DontPressWithParentLayout>
In code (bindView method of AdapteR):
View indicator = view.findViewById(R.id.indicator);
// Set the initial resource for the bar image.
final ImageView barOnOff =
(ImageView)
indicator.findViewById(R.id.bar_onoff);
barOnOff.setImageResource(alarm.enabled ?
R.drawable.ic_indicator_on :
R.drawable.ic_indicator_off);
// Set the initial state of the clock "checkbox"
final CheckBox clockOnOff =
(CheckBox)
indicator.findViewById(R.id.clock_onoff);
clockOnOff.setChecked(alarm.enabled);
// Clicking outside the "checkbox" should also change the
state.
indicator.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
clockOnOff.toggle();
updateIndicatorAndAlarm(clockOnOff.isChecked(),
barOnOff, alarm);
}
});
...
private void updateIndicatorAndAlarm(boolean enabled, ImageView bar,
Alarm alarm) {
bar.setImageResource(enabled ? R.drawable.ic_indicator_on
: R.drawable.ic_indicator_off);
Alarms.enableAlarm(this, alarm.id, enabled);
if (enabled) {
SetAlarm.popAlarmSetToast(this, alarm.hour, alarm.minutes,
alarm.daysOfWeek);
}
}
I made something like this....but I left checkbox and remove the
image....and the mess still happens! I just can't believe to work with
list items is so complicated... Why??? How the hell is to solve that
problem? HEEEELP!
Maybe I shoulw develop my own on\off button and put it in my layout
and override it's onClick method? Or even made it Checkable? But I
still want to use checkbox!!!
--
You received this message because you are subscribed to the Google
Groups "Android Developers" group.
To post to this group, send email to [email protected]
To unsubscribe from this group, send email to
[email protected]
For more options, visit this group at
http://groups.google.com/group/android-developers?hl=en
