What is launchMode singleTask?
singleTask In this launch mode a new task will always be created and a new instance will be pushed to the task as the root one. If an instance of activity exists on the separate task, a new instance will not be created and Android system routes the intent information through onNewIntent() method.
What is single task and single instance launchMode?
A “singleInstance” activity stands alone as the only activity in its task. If it starts another activity, that activity will be launched into a different task regardless of its launch mode — as if FLAG_ACTIVITY_NEW_TASK was in the intent. In all other respects, the “singleInstance” mode is identical to “singleTask”.
What is the difference between singleTop and singleTask?
standard and singleTop comes in one side and singleTask and singleInstance comes in another side. The main difference between standard and singleTop is in standard, every time a new intent for standard activity, a new instance is created.
What is the difference between singleTask and singleInstance in Android?
It’s always at the root of its task, but other activities (necessarily “standard” and “singleTop” activities) can be launched into that task. A “singleInstance” activity, on the other hand, permits no other activities to be part of its task. It’s the only activity in the task.
What is singleTask?
” A “singleTask” activity allows other activities to be part of its task. It’s always at the root of its task, but other activities (necessarily “standard” and “singleTop” activities) can be launched into that task.”
What is Flag_activity_clear_top?
flag — FLAG_ACTIVITY_CLEAR_TOP: If the Activity being started is already running in the current task then instead of launching the new instance of that Activity, all the other activities on top of it is destroyed (with call to onDestroy method) and this intent is delivered to the resumed instance of the Activity (now …
What is single top in Android?
“singleTop” If an instance of the activity already exists at the top of the current task, the system routes the intent to that instance through a call to its onNewIntent() method, rather than creating a new instance of the activity.
What are launch modes in Android?
There are four launch modes for activity.
- standard.
- singleTop.
- singleTask.
- singleInstance.
What is the use of intent?
An Intent object carries information that the Android system uses to determine which component to start (such as the exact component name or component category that should receive the intent), plus information that the recipient component uses in order to properly perform the action (such as the action to take and the …
What is the difference between a fragment and an activity?
Activity is an application component that gives a user interface where the user can interact. The fragment is only part of an activity, it basically contributes its UI to that activity. After using multiple fragments in a single activity, we can create a multi-screen UI.
What is finishAffinity Android?
finishAffinity() is not used to “shutdown an application”. It is used to remove a number of Activity s belonging to a specific application from the current task (which may contain Activity s belonging to multiple applications).
What is moveTaskToBack?
The purpose of moveTaskToBack: http://developer.android.com/reference/android/app/Activity.html. moveTaskToBack(boolean nonRoot) Move the task containing this activity to the back of the activity stack.
Is the singletask mode the same as singleinstance mode?
In all other respects, the “singleInstance” mode is identical to “singleTask”. As noted above, there’s never more than one instance of a “singleTask” or “singleInstance” activity, so that instance is expected to handle all new intents.
How to differentiate between single instance and multiple instances of SQL Server?
Single instance Vs multiple instances of SQL Server — We can differentiate both instances by observing the below table: Databases, logins, security and applications – Single vs Multiple instances If we are using multiple databases in a single instance means all databases will use the same tempDB and decrease the database performance.
Can a task have more than one instance of an activity?
However, if an instance of the activity already exists in a separate task, the system routes the intent to the existing instance through a call to its onNewIntent () method, rather than creating a new instance. Only one instance of the activity can exist at a time.
What does it mean to have a single instance of ERP?
An ERP instance is simply an installation of an ERP application. Therefore, a single-instance ERP solution is one that uses the ERP system for all your business operations—on either the front end or the back end.