![]() ![]() The task and regardless of whether they used the Back or Home button to When the value is " true", every time users start the task again, theyĪre brought to its root activity regardless of what they were last doing in It's ignored for all other activities in the task. Is meaningful only for activities that start a new task (the root activity) " true" if the task is always stripped down to its root activity, and ![]() The root activity, whenever it is re-launched from the home screen. Useful, for example, in an application like the web browser where there isĪ lot of state (such as multiple open tabs) that users would not like to lose.Īndroid:clearTaskOnLaunch Whether or not all activities will be removed from the task, except for To the task in its last state, regardless of how they get there. However, when this attribute is " true", users will always return The task for a certain amount of time, such as 30 minutes. Typically, this is done if the user hasn't visited Normally, the system clears a task (removes all activities from the stackĪbove the root activity) in certain situations when the user re-selects that ThisĪttribute is meaningful only for the root activity of a task it's ignored " false" if the system is allowed to reset the task to its initial Re-parenting is limited to the " standard" and " singleTop"Īndroid:alwaysRetainTaskState Whether or not the state of the task that the activity is in will alwaysīe maintained by the system - " true" if it will be, and " singleInstance" launch modes can only be at the root of a task, Therefore, by definition, a root activity is always in a task with the Of a task is determined by reading the affinity of its root activity. The affinity of an activity is defined by the If it's reparented to the browser task, it will be shown when theīrowser next comes to the front, and will be absent when the e-mail task Is defined by the browser application, but is launched as part of the e-mail The link brings up an activity that can display the page. To the main task associated with that application.įor example, if an e-mail message contains a link to a web page, clicking Typically, it's used to cause the activities of an application to move Has an affinity for when its current task is no longer displayed. You can use this attribute to force it to be re-parented to the task it The activity that started it and it stays there for its entire lifetime. Normally when an activity is started, it's associated with the task of If this attribute is not set, the value set by the correspondingĪpplies to the activity. Must remain with the task where it started. The task it has an affinity for when that task is next brought to theįront - " true" if it can move, and " false" if it Any that are not declared there will not be seenĪttributes: android:allowTaskReparenting Whether or not the activity can move from the task that started it to All activitiesĮlements in the manifest file. Implements part of the application's visual user interface. Contained in: can contain: description: Declares an activity (an Activity subclass) that
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