How to implement dragging in LWUIT?
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01-06-2021 - |
Question
My LWUIT application has 3 Forms:
1) FormA 2) FormB 3) FormC
The current form being displayed on the screen is FormB.
Case 1:
If the user swipes his finger LEFT on his touch screen phone, I want LWUIT to capture that event and display FormC
Case2:
If the user swipes his finger RIGHT on his touch screen phone, I want LWUIT to capture that event and display FormA
How do I do this? I think it has to do something with drag event but not sure how to implement it.
Thanks.
La solution
just need to override pointerDragged method in form and get/cal its X,Y positions and display another form.
new Form()
{
protected void pointerDragged(int x, int y) {
if(x,y....)
{
form3.show();
}else
{
from1.show();
}
super.pointerDragged(x,y);
}
};
here x,y can be calculated based on screen resolutions and components u have added to it.
Autres conseils
Use the Tabs component with 3 Containers, it supports Swipe. You can set the Tabs themselves to be hidden.
instead of taking 3 forms use 3 containers under 1 form and setScrollableX(true) and add all components in appropriate containers.