set grid view's image based on a if statement

So this is my grid view image and text set (or what ever you call it).

  GridView grid;String[] web = {
            "test",
            "test",
            "test"

    } ;
    int[] imageId = {
            R.drawable.example,
            R.drawable.example,
            R.drawable.example
    };

Now I'm trying to set it's images based on a if statement. something like this:

 GridView grid;String[] web = {
        "test",
        "test",
        "test"

} ;
int[] imageId = {
case 0:   if(blablabla == true){
            //set image 1
          }
          else{
            //set image 2
          }

case 1:   if(blablabla == true){
            //set image 1
          }
          else{
            //set image 2
          }

case 2:   if(blablabla == true){
            //set image 1
          }
          else{
            //set image 2
          }
};

can anyone help me? i'm stuck on this for a week now.