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Questions tagged [taskaffinity]

31 questions
110
votes
3 answers

Android Task Affinity Explanation

What exactly is the attribute taskAffinity used for? I have gone through the documentation but I couldn't understand much. Can anyone explain task affinity in laymans terms?
Traxex1909
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14
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1 answer

setting cpu affinity of a process from the start on linux

I want to set the cpu affinity of a process on linux when it is starting. There are methods like sched_setaffinity and taskset, but they need the processid of the process. They may cause potential migration like a process was started on a core but…
ajay saini
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10
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1 answer

android 4.4.X: taskAffinity & launchmode vs. Activity lifecycle

I developed a simple application, which demostrates some strange behaviour on Android 4.4.X devices I noticed. Lets say I want to have 2 "main" activities, where the first says "Hello" (by starting 'HelloActivity') every second time it is resumed…
Berťák
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10
votes
2 answers

How to remove singleTask activity with taskAffinity from recent tasks when it is finished?

Let assume we have two activities. A - main activity, that is "home launcher enabled" (proper intent filters etc.) B - task root activity with singleTask specification (there can be only one instance of this activity) and with custom taskAffinity…
Michael P
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7
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1 answer

How does android:taskaffinity work?

How does android:taskaffinity attribute work? As per my understanding, pressing the Home key will move the activity to back stack, but it will not be destroyed. I am confused.
user1933455
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2
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1 answer

Not Working corss-application activities with taskAffinity in Android 11

I have two application, App A and App B, now I want to start an activity in App B from App A, the launchmode of this Activity is “singleTask”. The order: Activity X (App A) ———> Activity Y (App B) ———> Activity Z (App B, launchMode=“singleTask”) As…
YikFung
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2
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1 answer

task affinity for singleInstance activity?

I want to know what is the default task affinity for singleInstance activity? Since each singleInstance Activity opens up as root activity in a new task. and there is no need to declare android:taskAffinity. See I have read the developer guides and…
Yogesh Seralia
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2
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3 answers

Android launch an activity from a broadcast receiver

I know it may not be best practice but this is what i want to do. When my broadcast receiver is called - start a new activity which has is not fullscreen and has a transparent background - which opens on top of your current activity / desktop…
RenegadeAndy
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2
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1 answer

How to change task affinity in Android?

There is an activity (A) in my application that can be called from other apps (B) if A is called from B, in recent task there are an instance of B and an instance of A. i want that A be showen as part of B Task. I've found that by adding same…
user3473590
2
votes
2 answers

Commutative property of the commands

I need to ask this question just to double check the answer. Does the order of the commands matter? For example: Is this command taskset 0x2 time echo "foo" equal than time taskset 0x2 echo "foo" ? I need to know if all the commands followed by…
Carlos Vega
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2
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1 answer

starting an Activity from Broadcast Receiver brings up Default Activity

My app contains two activity, one widget and a broadcast receiver. First activity is default one which is called by home launcher. Second activity is a reminder dialog activity which plays a MP3 and has a dismiss button. It will appear on home…
Ali
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1
vote
1 answer

Issue with taskAffinity and excludeFromRecents on Android 10

I have an application which is sometimes displaying notifications to users. When pressing a notification, a "Dispatch" Activity is triggered which calls startActivities with some intents leading to proper activity depending on the notification…
Loïc
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1
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1 answer

Check value of PF_NO_SETAFFINITY

Is it possible to tell whether a process/thread has the PF_NO_SETAFFINITY flag set? I'm running taskset on a series of process ids and some are throwing errors of the following form: taskset: failed to set pid 30's affinity: Invalid argument I…
Will
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1
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0 answers

How to make FLAG_ACTIVITY_NEW_TASK ignore taskAffinity?

I have a problem with two of the buttons in a launcher app I'm developing. The first button should launch TotalCommander's built-in text editor to display a certain text file. The second button should launch TotalCommander. So I started with the…
Tamás Bolvári
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1
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1 answer

When taskAffinity activity is calling finish() but it is not dismiss recent apps

I have taskAffinity activity which is BActivity and AActivity is a normal activity. AActivity is calling BActivity by using below startActivity function. When BActivity's jobs have done, BActivity called finish(); function but BActivity doesn't…
begiNNer
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