moveTaskToBack with wallpaper flags causes black flicker on Jelly Bean
I have an activity that is set to show the device wallpaper, i.e:
in AndroidManifest.xml:
<activity
...
android:theme="@android:style/Theme.Translucent.NoTitleBar"
>
In the Activity's OnCreate:
getWindow().addFlags(WindowManager.LayoutParams.FLAG_SHOW_WALLPAPER)
When I call
moveTaskToBack(true);
The activity disappears as expected, so far so good.
However, when running this on Jelly Bean, such as a Galaxy S3 running 4.1.1, there is a very visible black flicker during the transition right after moveTaskToBack. The flicker only happens if the Home activity is right below my activity.
The issue is fully reproducible with a simple activity set up as I described.
The flicker does not happen if I use finish() instead, but using finish is not an option. It also doesn't happen on an S3 running ICS.
I suspect this might be related to some refresh of the wallpaper, or maybe something to do with changes in Project Butter, but I'm out of ideas.
How do I get rid of this flicker while still being able to see the device wallpaper, and without destroying the activity when I move it out of view?
android android-4.2-jelly-bean edited Nov 16 '18 at 6:51
Mostafa Arian Nejad
6211922
asked Jan 16 '13 at 16:23
jamiejamie
1
add a comment |
I have an activity that is set to show the device wallpaper, i.e:
in AndroidManifest.xml:
<activity
...
android:theme="@android:style/Theme.Translucent.NoTitleBar"
>
In the Activity's OnCreate:
getWindow().addFlags(WindowManager.LayoutParams.FLAG_SHOW_WALLPAPER)
When I call
moveTaskToBack(true);
The activity disappears as expected, so far so good.
However, when running this on Jelly Bean, such as a Galaxy S3 running 4.1.1, there is a very visible black flicker during the transition right after moveTaskToBack. The flicker only happens if the Home activity is right below my activity.
The issue is fully reproducible with a simple activity set up as I described.
The flicker does not happen if I use finish() instead, but using finish is not an option. It also doesn't happen on an S3 running ICS.
I suspect this might be related to some refresh of the wallpaper, or maybe something to do with changes in Project Butter, but I'm out of ideas.
How do I get rid of this flicker while still being able to see the device wallpaper, and without destroying the activity when I move it out of view?
android android-4.2-jelly-bean edited Nov 16 '18 at 6:51
Mostafa Arian Nejad
6211922
asked Jan 16 '13 at 16:23
jamiejamie
1
add a comment |
I have an activity that is set to show the device wallpaper, i.e:
in AndroidManifest.xml:
<activity
...
android:theme="@android:style/Theme.Translucent.NoTitleBar"
>
In the Activity's OnCreate:
getWindow().addFlags(WindowManager.LayoutParams.FLAG_SHOW_WALLPAPER)
When I call
moveTaskToBack(true);
The activity disappears as expected, so far so good.
However, when running this on Jelly Bean, such as a Galaxy S3 running 4.1.1, there is a very visible black flicker during the transition right after moveTaskToBack. The flicker only happens if the Home activity is right below my activity.
The issue is fully reproducible with a simple activity set up as I described.
The flicker does not happen if I use finish() instead, but using finish is not an option. It also doesn't happen on an S3 running ICS.
I suspect this might be related to some refresh of the wallpaper, or maybe something to do with changes in Project Butter, but I'm out of ideas.
How do I get rid of this flicker while still being able to see the device wallpaper, and without destroying the activity when I move it out of view?
android android-4.2-jelly-bean edited Nov 16 '18 at 6:51
Mostafa Arian Nejad
6211922
asked Jan 16 '13 at 16:23
jamiejamie
1
I have an activity that is set to show the device wallpaper, i.e:
in AndroidManifest.xml:
<activity
...
android:theme="@android:style/Theme.Translucent.NoTitleBar"
>
In the Activity's OnCreate:
getWindow().addFlags(WindowManager.LayoutParams.FLAG_SHOW_WALLPAPER)
When I call
moveTaskToBack(true);
The activity disappears as expected, so far so good.
However, when running this on Jelly Bean, such as a Galaxy S3 running 4.1.1, there is a very visible black flicker during the transition right after moveTaskToBack. The flicker only happens if the Home activity is right below my activity.
The issue is fully reproducible with a simple activity set up as I described.
The flicker does not happen if I use finish() instead, but using finish is not an option. It also doesn't happen on an S3 running ICS.
I suspect this might be related to some refresh of the wallpaper, or maybe something to do with changes in Project Butter, but I'm out of ideas.
How do I get rid of this flicker while still being able to see the device wallpaper, and without destroying the activity when I move it out of view?
android android-4.2-jelly-bean android android-4.2-jelly-bean edited Nov 16 '18 at 6:51
Mostafa Arian Nejad
6211922
asked Jan 16 '13 at 16:23
jamiejamie
1
edited Nov 16 '18 at 6:51
Mostafa Arian Nejad
6211922
asked Jan 16 '13 at 16:23
jamiejamie
1
edited Nov 16 '18 at 6:51
Mostafa Arian Nejad
6211922
edited Nov 16 '18 at 6:51
Mostafa Arian Nejad
6211922
edited Nov 16 '18 at 6:51
Mostafa Arian Nejad
6211922
6211922
asked Jan 16 '13 at 16:23
jamiejamie
1
asked Jan 16 '13 at 16:23
jamiejamie
1
asked Jan 16 '13 at 16:23
jamiejamie
1
1
add a comment |
add a comment |
1 Answer
1
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oldest
votes
I came across a simlar problem just now related to moveTaskToBack(true). The behavior of this API is clearly different on JellyBean vs ICS, however I can't find any documentation that helps.
answered Jan 17 '13 at 17:19
user1882841user1882841
83
add a comment |
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1 Answer
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active
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1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
I came across a simlar problem just now related to moveTaskToBack(true). The behavior of this API is clearly different on JellyBean vs ICS, however I can't find any documentation that helps.
answered Jan 17 '13 at 17:19
user1882841user1882841
83
add a comment |
I came across a simlar problem just now related to moveTaskToBack(true). The behavior of this API is clearly different on JellyBean vs ICS, however I can't find any documentation that helps.
answered Jan 17 '13 at 17:19
user1882841user1882841
83
add a comment |
I came across a simlar problem just now related to moveTaskToBack(true). The behavior of this API is clearly different on JellyBean vs ICS, however I can't find any documentation that helps.
answered Jan 17 '13 at 17:19
user1882841user1882841
83
I came across a simlar problem just now related to moveTaskToBack(true). The behavior of this API is clearly different on JellyBean vs ICS, however I can't find any documentation that helps.
answered Jan 17 '13 at 17:19
user1882841user1882841
83
answered Jan 17 '13 at 17:19
user1882841user1882841
83
answered Jan 17 '13 at 17:19
user1882841user1882841
83
answered Jan 17 '13 at 17:19
user1882841user1882841
83
83
add a comment |
add a comment |
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