Android Development first Project-Calculator development record

2017.4.1

Today the layout interface is basically complete and now writes a bit of event binding. The plan is to use dynamic bindings and change them at any time. About the layout, yesterday to get very late, because the layout of the use of errors, with the own, not carefully read, preview without problems, but the real machine debugging error. is a compatibility issue, many Android systems do not support Constrainlayout (6.0 does not support do not ask why I know). Instead of LinearLayout, a simple nesting, the main body or a few linearlayout respectively wrote each line, which used a few linearlayout to adjust the button clearance. Then the font size and alignment are adjusted slightly.

Android Development first Project-Calculator development record