Repair Firemonkey Line Drawing issues (Android & IOS Platform)

Question: Official QC of a Firemonkey mobile platform draw line problem:
RSP-14309: [IOS & Android] Delphi 10.1 berlin-drawing problems
https://quality.embarcadero.com/browse/RSP-14309

Applicable: All Firemonkey versions for Android & IOS

Repair method:

Please make the source FMX. Strokebuilder.pas Copy to your project directory and make changes.

STEP1: Found the following function procedure Const Dashdirvec, thickperp:tpointf); STEP2: Modify code Original code: Roundshift:= Dashdirvec * fhalfthickness;//Delete This line fix code: roundshift:= Dashdirvec ;                  Add this line

Corrected before: (Figure taken from official website QC)

After correction:

Repair Firemonkey Line Drawing issues (Android & IOS Platform)