1.5.0

6ccab33 Convert textlayoutbuilder support lib v28 references to androidX
a514cc4 Bump support version to v28
a9a11e6 Add nullable annotations
23cf09b Add a function to calculate the leftmost line position in a static layout.
6e10bd9 Add a workaround for SpannableStringBuilder issue when your string contains null spans
23cd8f1 Avoid getting the line height of the -1st line