onSettingsChanged and null values

Former Member over 7 years ago

Hi,

I my wathface i have some parameters i read with getProperty. Everything works fine.. when i change from GCM the value the function onSettingsChanged in app is called but when i read again some properties i have null values.... any idea WHY?? the wathface crashes...

function onSettingsChanged() { // triggered by settings change in GCM

if(m_mainView)
{
m_mainView.handlSettingUpdate();

Ui.WatchUi.requestUpdate(); // update the view to reflect changes

}

thanks!!

jim_m_58 over 7 years ago

Are they null, or not the expected type? See point 10 in the New Developer FAQ

You might be expecting a Number, but you see it as a float, and point 10 has a wrapper for that.

Former Member over 7 years ago

hi jim,

are null. The problem are not with the properties changed in settings but in the property i use as a sort of constant.
Example:

<property id="XVALUE" type="number">135</property>

I use XVALUE as a constant to draw an object. when i change a color setting and i try read back the XVALUE is null and the app crashes.

MAybe i have to use a string and convert to a number as u suggested me to have compile time constant ?

thanks for your support

PS
I'm using an iphone

Former Member over 7 years ago

jim
fixed using Ui.loadResource(Rez.Strings.FOO).toNumber().

Marco

jim_m_58 over 7 years ago

For me, if I have a property, I always have an associated setting for it (I only use properties for settings).

If it's the apps's own data, I use the object store. (no property). An example here is saving off a location for sunrise/sunset, in the event I can't get a new one from Activity.Info.

You got the compile time options with things like a device specific string (as you are) or using annotations,etc.

There's also a run-time option based on what you need. I'll do that in onLayout(), with things like width, height, and screenShape.

Peter De Decker did a blog post that can give you some ideas.