GUI Layouting

src/ch/spherIC/recurvebowsight/RBSMainActivity.java

 import android.os.Handler;
 
 import android.text.SpannableString;
+import android.text.Spanned;
 
 import android.text.style.TabStopSpan;
 
                                       + DF_FC.format(flightCurve[flightCurve.length - 1][TrajectoryCalculator.IDX_T])
                                       + " sec\n\n");
 
+        int width = this.flightCurveTxtFld.getMeasuredWidth();
+
         SpannableString line = new SpannableString("t [sec]\tVx [m/s]\tVy [m/s]\tx [m]\ty [m]\n\n");
-        line.setSpan(new TabStopSpan.Standard(100), 7, 9, 0);
-        line.setSpan(new TabStopSpan.Standard(200), 17, 19, 0);
-        line.setSpan(new TabStopSpan.Standard(300), 27, 29, 0);
-        line.setSpan(new TabStopSpan.Standard(400), 34, 36, 0);
+        line.setSpan(new TabStopSpan.Standard(width / 5), 0, 36, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
+        line.setSpan(new TabStopSpan.Standard(width / 5 * 2), 0, 36, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
+        line.setSpan(new TabStopSpan.Standard(width / 5 * 3), 0, 36, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
+        line.setSpan(new TabStopSpan.Standard(width / 5 * 4), 0, 36, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
+
         this.flightCurveTxtFld.append(line);