''[[MobileApp>Mobile Application Guide]]'' > ''[[Android>Introduction to Android]]'' > ''Activity'' ~ *The peripheral Class of Activity [#o0a80281] Activity and the inheritance relation are described as follows. #ref(activity.gif,nolink); ~ *Activity's Life Cycle [#s8e08332] #ref(activity.jpg,nolink); ~ *Sequence of Activity [#o62c0353] #ref(sequence.png,nolink); **Foreground [#g42bbf6a] **Visible [#hfe1a50e] **Backing ground activity [#s9949908] ~ ~ *Method that can be used [#ybf700bb] ~ #ref(method.png,nolink); ~ *History Stack [#e0f23e70] Activityが生成された場合、前回のActivityをそのままの状態でオブジェクト丸ごとhistory stackというActivityのコレクションに格納する。 ~ *Startup mode of Activity [#d69766ff] The ACTIVITY has four start-up mode.~ ~ ***launchMode attribute [#of4a0d38] ***LaunchMode attribute [#of4a0d38] To start "Activity", there are the four attributes.~ "standard"(Default Mode)~ "singleTop"~ "singleTask" ひとつのタスクのみしか開始できません~ "singleInstance" ひとつのタスクのみしか開始できません~ FLAG_ACTIVITY_NEW_TASK~ FLAG_ACTIVITY_CLEAR_TOP~ FLAG_ACTIVITY_RESET_TASK_IF_NEEDED~ FLAG_ACTIVITY_SINGLE_TOP~ ~ ~ ''[[Back>Introduction to Android]]''