Weather.getCurrentConditions().attribute crashes when data is not available SDK 3.2.1

I am using the brand new shiny SDK 3.2.1 weather feature which I absolutely love. However, I was dismayed when my watch face crashed in the simulator after I unchecked the "Weather Data Available" box in the settings. I was calling Weather.getCurrentConditions().temperature, and I got an unexpected type value error. When I called Weather.getCurrentConditions() instead, it recognized it as a null value and I could use an if statement to work around it. I have not tested the other weather functions or attributes.

Can the attributes for the weather functions get null values when data is not available? Thanks

Former Member

Former Member over 4 years ago in reply to jim_m_58

Hi Jim,

What you're doing there is similar to my workaround, although I am not following your use of makeTemp.

Here's my full function:

	static function getTemperature() {
		
		var value;		
		var degreeSign = StringUtil.utf8ArrayToString([0xC2,0xB0]);
		var units = degreeSign + Ui.loadResource(Rez.Strings.degC);
		var unitsNum = Sys.getDeviceSettings().temperatureUnits;
		
		if (Weather.getCurrentConditions() == null) {
			value = "-- ";
			
			if (unitsNum == 1) {
				units = degreeSign + Ui.loadResource(Rez.Strings.degF);
			}
		}
		else {
			value = Weather.getCurrentConditions().temperature;  // units are degC

			if (unitsNum == 1) {
				value = ((value * (9.0d / 5.0d)) + 32).toNumber();
				units = degreeSign + Ui.loadResource(Rez.Strings.degF);
			}
		}
		
		var reading = value + units;
		
		return reading;
	}

The app crashes when I try this:

if (Weather.getCurrentConditions().temperature == null) {

// do something

}

I'm relatively new at coding and Connect IQ. Is this behavior normal for attributes?

jim_m_58 over 4 years ago

Not sure I understand. Are you null checking what you get when you call getCurrentConditions()? Just tied unchecking "weather data available with this code, and I get "No Conditions" displayed

    	var temp="No Weather";
    	if(hasWeather) {
    		temp="No Conditions";
    		var cc=Weather.getCurrentConditions();
    		if(cc!=null) {
    			temp=makeTemp(cc.temperature).format("%0.1f")+degree;
    		}
    	}
    	
    	//display the temp variable