Android programmatically setting a different map marker icon for each item in array

Question

In my Android app, I am iterating through an array of locations and adding a map marker for each item. I would like to use a different marker icon for each item in the array. There are 30 items in the locations array and 30 different icons. The icon file names are icon1.png, icon2.png, icon3.png etc.

My code is as follows:

    for (int i = 1; i < myArray.size(); i ++) {

        marker = mMap.addMarker(new MarkerOptions()
                .position(myArray.get(i))
                .title("Marker " + i)
                .icon(BitmapDescriptorFactory.fromResource(R.drawable.icon1)));

    }

How can I set R.drawable.icon1 to change for each iteration? i.e. R.drawable.icon(i)

Do you mind sharing a link or posting your findings as an answer? — Eugen Pechanec, Jan 19 '15 at 02:58
Eugen, that comment was supposed to contain this link: http://stackoverflow.com/a/14600380/2698253 — brndn, Jan 20 '15 at 03:40

score 1 · Answer 1 · answered Jan 19 '15 at 10:34

1

You just have to lookup the resource having the name, for example:

int resourceId=Resources.getSystem().getIdentifier(pDrawableName, "drawable", "android");
if(resourceId==0){
    return null;
} else {
    return Resources.getSystem().getDrawable(resourceId);
}

you can use as pDrawableName: pDrawableName = "icon"+i;

pay attention to your loop, it starts from i=1 so you are missing the "0" element (you should also have an 'icon0' drawable for that).

answered Jan 19 '15 at 10:34

N Dorigatti

3,482
2
22
33

Thanks for your help. I will try this way as an alternate to the array method I replied about in a comment above. – brndn Jan 20 '15 at 03:41

Android programmatically setting a different map marker icon for each item in array

1 Answers1