How to change a Bitmap icon of a Marker based on a Boolean stored in Firebase

I would like the marker icon to change when the value in the database changes. (I would like to add more markers later, which change in the same way but due to different values from the database.) I tried it like this: @Override public void onLocationChanged(Location location) { Bitmap MarkerUserRed = BitmapFactory.decodeResource(getResources(),R.drawable.userIconRed); Bitmap MarkerUserBlue =…

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How to convert a concrete integer into a generic integer?

I have the following function: use std::collections::HashMap; use num::traits::Unsigned; fn test<T: Unsigned>(strings: Vec<String>) -> HashMap<String, T>{ let mut string_map: HashMap<String, T> = HashMap::new(); for (i, string) in strings.iter().enumerate() { string_map.insert(string.clone(), i); } string_map } that causes the following compilation error: error[E0308]: mismatched types –> src/main.rs | | string_map.insert(string.clone(), i); | ^ expected type parameter, found…

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Stata type issue: two identical variables are not recognized identical by assert, why?

I would like to know more about the behavior of the following code: clear set obs 10000 set seed 98034 * I generate three variables generate double u1 = runiform() gen double u2=u1 *check assert u2==u1 *** gen double var1=runiform() * I generate some ids gen byte id_=0 forvalues i=1(1)`=10000/100′{ replace id_=`i’ if _n>`=(`i’-1)*`=10000/100” }…

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Getting an array list from Firestore and selecting 3 random strings from that array list

I am trying to get an array list from Firestore but I am unable to do this. I tried to use the two methods described here. I am using the second approach to get the array list with this code: questionRef.document(tvCat1).get().addOnCompleteListener(new OnCompleteListener<DocumentSnapshot>() { @Override public void onComplete(@NonNull Task<DocumentSnapshot> task) { if (task.isSuccessful()) { Map<String, Object>…

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