Sync File
Revert "Add MainActivity"

This reverts commit 266fea066a89a7de7522c0ef4ea04be509bed4a2.
Revert "Revert "Add MainActivity""

This reverts commit 698662fa2727682e2ddd62cd4773fb0c4a123b8b.
Revert "Revert "Revert "Add MainActivity"""

This reverts commit b56a95e57cc1000932e9d70dfa027e402887d618.
Revert "Revert "Add MainActivity""

This reverts commit 698662fa2727682e2ddd62cd4773fb0c4a123b8b.
Revert "Sync File"

This reverts commit b181e0875985f832bee9d77e2855b27f8a79781a.