You can calculate available number of columns, given a desired column width, and load the image as calculated. Define a static funtion to calculate as:
public class Utility {
public static int calculateNoOfColumns(Context context, float columnWidthDp) { // For example columnWidthdp=180
DisplayMetrics displayMetrics = context.getResources().getDisplayMetrics();
float screenWidthDp = displayMetrics.widthPixels / displayMetrics.density;
int noOfColumns = (int) (screenWidthDp / columnWidthDp + 0.5); // +0.5 for correct rounding to int.
return noOfColumns;
}
}
And then when using it in the activity or fragment you can do like this :
int mNoOfColumns = Utility.calculateNoOfColumns(getApplicationContext());
............
mGridLayoutManager = new GridLayoutManager(this, mNoOfColumns);