first commit

libraries/lvgl/examples/layouts/flex/lv_example_flex_5.py

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+def row_gap_anim(obj, v):
+    obj.set_style_pad_row(v, 0)
+
+
+def column_gap_anim(obj, v):
+    obj.set_style_pad_column(v, 0)
+
+#
+# Demonstrate the effect of column and row gap style properties
+#
+
+cont = lv.obj(lv.scr_act())
+cont.set_size(300, 220)
+cont.center()
+cont.set_flex_flow(lv.FLEX_FLOW.ROW_WRAP)
+
+for i in range(9):
+    obj = lv.obj(cont)
+    obj.set_size(70, lv.SIZE.CONTENT)
+
+    label = lv.label(obj)
+    label.set_text(str(i))
+    label.center()
+
+a_row = lv.anim_t()
+a_row.init()
+a_row.set_var(cont)
+a_row.set_values(0, 10)
+a_row.set_repeat_count(lv.ANIM_REPEAT.INFINITE)
+
+a_row.set_time(500)
+a_row.set_playback_time(500)
+a_row.set_custom_exec_cb(lambda a,val: row_gap_anim(cont,val))
+lv.anim_t.start(a_row)
+
+a_col = lv.anim_t()
+a_col.init()
+a_col.set_var(cont)
+a_col.set_values(0, 10)
+a_col.set_repeat_count(lv.ANIM_REPEAT.INFINITE)
+
+a_col.set_time(3000)
+a_col.set_playback_time(3000)
+a_col.set_custom_exec_cb(lambda a,val: column_gap_anim(cont,val))
+
+lv.anim_t.start(a_col)
+