yushilong / android-wheel Goto Github PK

Current NumericWheelAdapter implementation only takes an integer, then convert 
to string.  It would be nice if it could allow formatted string i.e. 
00,01,02,... as in minutes or even decimal.

It can be easily done by introducing an additional constructor to 
NumericWheelAdapter:

private String format = null;

public NumericWheelAdapter(int minValue, int maxValue, String format) {
    this.minValue = minValue;
    this.maxValue = maxValue;
    this.format = format;
}

// And modification to the getItem method:

public String getItem(int index) {
    if (index >= 0 && index < getItemsCount()) {
        if(this.format != null) {
            return String.format(this.format, minValue+index);
        } else {
            return Integer.toString(minValue + index);
        }
    }
    return null;
}

I'm attaching a new NumericWheelAdapter.java

Hi, I would love to have the following missing animations:

a)
onFling animation. When I scroll too fast, it should go fast until it stops.

b)
Animate to the correct position.
When you select in the middle between two options instead of animateTo it just 
place the correct one.


You can get some code that does the following here:
http://code.google.com/p/android-misc-widgets/source/browse/trunk/android-misc-w
idgets/src/org/miscwidgets/widget/Switcher.java

Thanks!

Dear sir, first.thanks for your great work .I get a issue to report,maybe it 
can make this view more helpful.

What steps will reproduce the problem?
1. setup two wheel view called level1 and level2
2. setup a change listener to level1,update the level2's adapter in the 
listener's method
3. scroll up and down of level1 wheel, level2 not update (repaint)

What is the expected output? What do you see instead?

  It should update the level2 wheel.


Code likes below:

                this.level1ItemWheel = (WheelView) findViewById(R.id.level1Item);
        this.level2ItemWheel = (WheelView) findViewById(R.id.level2Item);

                level1ItemWheel.setAdapter(new ArrayWheelAdapter<String>(
                    new String[]{"level1A","level1B"}));

            level1ItemWheel.setVisibleItems(5);
            level1ItemWheel.setCurrentItem(0);


            level2ItemWheel.setAdapter(new ArrayWheelAdapter<String>(
                    new String["child1_of_level1A","child2_of_level1A"]));

        level2ItemWheel.setVisibleItems(5);
        level2ItemWheel.setCurrentItem(0);


                level1ItemWheel.addChangingListener(new OnWheelChangedListener(){
                        public void onChanged(WheelView wheel, int oldValue, int newValue) {
            if (wheel == level1ItemWheel && newValue==1) { //when scroll to levelB,change it's child list.

                String level1Item = wheel.getAdapter().getItem(newValue);

                                //not working!!!!!!!!!!!!!!!!here
                level2ItemWheel.setAdapter(new ArrayWheelAdapter<String>( new String[]{"child1_of_level1B"} ));


                level2ItemWheel.setVisibleItems(5);
                level2ItemWheel.setCurrentItem(0);



                return;
            }  
                   );


How to fix it:
I found that setCurrentItem of WheelView ,check the select index before 
invalidate the ui.

    public void setCurrentItem(int index, boolean forceInvalidate) {

        if (index != currentItem) {
            invalidateLayouts();

            int old = currentItem;
            currentItem = index;

            notifyChangingListeners(old, currentItem);

            invalidate();
        }

    }


This may cause the second wheel not update view in this situation. I overload a 
new method:

public void setCurrentItem(int index, boolean forceInvalidate) {

        if (forceInvalidate || index != currentItem) { //use can choose weather he want to update the ui to new adapter here
            invalidateLayouts();

            int old = currentItem;
            currentItem = index;

            notifyChangingListeners(old, currentItem);

            invalidate();
        }

    }


And modify the code line in the change listener:

level2ItemWheel.setAdapter(new ArrayWheelAdapter<String>( new 
String[]{"child1_of_level1B"} ));

level2ItemWheel.setVisibleItems(5);
level2ItemWheel.setCurrentItem(0,true);///And now it can work now!!!


Hope this can help....

What steps will reproduce the problem?
>adb.exe install wheel.apk
825 KB/s (29602 bytes in 0.035s)
Can't dispatch DDM chunk 46454154: no handler defined
Can't dispatch DDM chunk 4d505251: no handler defined
        pkg: /data/local/tmp/wheel.apk
Success

After this I can see the application icon, but I can't access the menu items 
Cities, and others

What version of the product are you using? On what operating system?
Version of wheel demo: 1.2
Version of android sdk: r06 for windows
Eclipse: Galileo
OS: Vista Business