mauve flower

Probably Dissotis rotundifolia if it is growing on the ground. Still can't ID properly because the leaves in your picture are not D.rotundifoila leaves. Guess it is D.rotundifolia if it is a ground cover instead of a shrub.

Added a picture showing more of the leaves but they don't look like those in your suggestion.

Probably Melastoma malabathricum Cannot confirm without the leaves.