[android-developers] Re: Dynamic Application Theme
No, I finish() the startup activity in onCreate() in which case it is never made visible. This is documented somewhere. Sure, but I couldn't manage to set the theme for the next activity that way. No idea why it works for you. Current (working) solution is to set the startup activity with the same AB settings as the main activity, wait 350ms after layout then start the main activity, but it has a nasty hacky feel to it, I'd much rather hook off an OS event. Pent -- -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en --- You received this message because you are subscribed to the Google Groups Android Developers group. To unsubscribe from this group and stop receiving emails from it, send an email to android-developers+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
[android-developers] Re: Dynamic Application Theme
No, I finish() the startup activity in onCreate() in which case it is never made visible. This is documented somewhere. On Friday, February 1, 2013 9:18:10 PM UTC+8, Pent wrote: I have a StartUp Activity, which, based on user preference, can start the app in various real activity. So, I guess, I effectively disabled the preview screen, by doing this? If animations are enabled in system prefs, you should get an animation between the startup activity and the subactivity. Do you not ? I couldn't disable that. Intent.FLAG_ACTIVITY_NO_ANIMATION in the intent to startActivity() is apparently just ignored. Pent -- -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en --- You received this message because you are subscribed to the Google Groups Android Developers group. To unsubscribe from this group and stop receiving emails from it, send an email to android-developers+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
[android-developers] Re: Dynamic Application Theme
It's interesting how my app doesn't have this issue. I have a StartUp Activity, which, based on user preference, can start the app in various real activity. So, I guess, I effectively disabled the preview screen, by doing this? On Friday, February 1, 2013 3:43:03 PM UTC+8, Pent wrote: http://android.cyrilmottier.com/?p=873 Good link, thanks. Unfortunately it only helps with static configuration, which is not the problem. The comments show that Romain also doesn't have a solution for user-preference-based theming. @Kostya: I know how to control the launch theme, the problem is doing it dependent on user theme. If I misunderstood how the Chrome setup might help, could you please let me know ? Pent -- -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en --- You received this message because you are subscribed to the Google Groups Android Developers group. To unsubscribe from this group and stop receiving emails from it, send an email to android-developers+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
[android-developers] Re: Dynamic Application Theme
Chrome (and Contacts) prevents its activity from being destroyed when he user presses Back (the normal code, in the framework, is to call finish then). If you did the same, the mismatched animation won't happen so often, since when resuming an existing activity, the system will animate its actual content. -- K On Friday, February 1, 2013 11:43:03 AM UTC+4, Pent wrote: http://android.cyrilmottier.com/?p=873 Good link, thanks. Unfortunately it only helps with static configuration, which is not the problem. The comments show that Romain also doesn't have a solution for user-preference-based theming. @Kostya: I know how to control the launch theme, the problem is doing it dependent on user theme. If I misunderstood how the Chrome setup might help, could you please let me know ? Pent -- -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en --- You received this message because you are subscribed to the Google Groups Android Developers group. To unsubscribe from this group and stop receiving emails from it, send an email to android-developers+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
[android-developers] Re: Dynamic Application Theme
I have a StartUp Activity, which, based on user preference, can start the app in various real activity. So, I guess, I effectively disabled the preview screen, by doing this? If animations are enabled in system prefs, you should get an animation between the startup activity and the subactivity. Do you not ? I couldn't disable that. Intent.FLAG_ACTIVITY_NO_ANIMATION in the intent to startActivity() is apparently just ignored. Pent -- -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en --- You received this message because you are subscribed to the Google Groups Android Developers group. To unsubscribe from this group and stop receiving emails from it, send an email to android-developers+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
[android-developers] Re: Dynamic Application Theme
Chrome (and Contacts) prevents its activity from being destroyed when he user presses Back (the normal code, in the framework, is to call finish then). If you did the same, the mismatched animation won't happen so often, since when resuming an existing activity, the system will animate its actual content. Ah, that's what you meant. A small improvement I guess, but not very satisfying somehow :-) Thanks anyway! Pent -- -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en --- You received this message because you are subscribed to the Google Groups Android Developers group. To unsubscribe from this group and stop receiving emails from it, send an email to android-developers+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
[android-developers] Re: Dynamic Application Theme
Progress! Don't know what I changed but managed to prevent the between
startup and main activity animation. So a startup activity works, but
only if there's a delay before
I call the main activity. Here's the code:
public class FrontDoor extends MyActivity {
@Override
public void onCreate( Bundle icicle ) {
super.onCreate( icicle );
MyFrameLayout v = new MyFrameLayout(this);
v.setLayoutParams( new
ViewGroup.LayoutParams( LayoutParams.FILL_PARENT,
LayoutParams.FILL_PARENT ) );
setContentView( v );
v.setOnLayoutCallback( new MyFrameLayout.OnLayoutCallback() {
@Override
public void onLayout(int width, int height) {
new Handler() {
public void handleMessage( Message m ) {
startActivity(
new Intent( FrontDoor.this,
Tasker.class ).
setFlags(
Intent.FLAG_ACTIVITY_NO_ANIMATION )
);
}
}.sendEmptyMessageDelayed( 0, 500 );
}
});
}
(the theme-setting stuff is in MyActivity)
If there's no delay, the startup activity disappears immediately and
is not there while the main activity is loading. I put it in a layout
handler because that's the latest hook I can find into the activity
creation process so the time from there till the next activity is most
constant.
Anyone have a better hook where the activity has finished displaying
and I can safely start the sub-activity ? onResume() and
onPostResume() are not late enough.
Pent
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[android-developers] Re: Dynamic Application Theme
For animations you can use
overridePendingTransition(0, 0); which I think is more reliable than the
Intent flag.
http://developer.android.com/reference/android/app/Activity.html#overridePendingTransition(int,
int)
Do it right before the startActivity
As for when to start the activity you might have luck creating a handler
and just posting a runnable to it in onCreate. I've done this in
transparent activities to avoid a brief black screen.
On Friday, February 1, 2013 8:08:27 AM UTC-6, Pent wrote:
Progress! Don't know what I changed but managed to prevent the between
startup and main activity animation. So a startup activity works, but
only if there's a delay before
I call the main activity. Here's the code:
public class FrontDoor extends MyActivity {
@Override
public void onCreate( Bundle icicle ) {
super.onCreate( icicle );
MyFrameLayout v = new MyFrameLayout(this);
v.setLayoutParams( new
ViewGroup.LayoutParams( LayoutParams.FILL_PARENT,
LayoutParams.FILL_PARENT ) );
setContentView( v );
v.setOnLayoutCallback( new MyFrameLayout.OnLayoutCallback() {
@Override
public void onLayout(int width, int height) {
new Handler() {
public void handleMessage( Message
m ) {
startActivity(
new Intent(
FrontDoor.this, Tasker.class ).
setFlags(
Intent.FLAG_ACTIVITY_NO_ANIMATION )
);
}
}.sendEmptyMessageDelayed( 0, 500 );
}
});
}
(the theme-setting stuff is in MyActivity)
If there's no delay, the startup activity disappears immediately and
is not there while the main activity is loading. I put it in a layout
handler because that's the latest hook I can find into the activity
creation process so the time from there till the next activity is most
constant.
Anyone have a better hook where the activity has finished displaying
and I can safely start the sub-activity ? onResume() and
onPostResume() are not late enough.
Pent
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[android-developers] Re: Dynamic Application Theme
I see this in every app with theme switching, mine included.
My guess is that when Android performs an activity launch from nothing,
it runs the launch animation using whatever theme is specified in the
manifest, before any of the app's code is executed.
You can easily test this by setting a title for your activity in the
manifest, and then setting a different one in your onCreate. You should see
the title change (flash) after the animation completes.
It works differently in Chrome, where the launch animation has the recent
sites tiles (Chrome does not have a light/dark theme, but we're talking
about being able to control the launch animation).
I believe the reason for this is they handle the back key and use
moveTaskToBackground rather than letting the activity get destroyed.
Again, easy to test: 1) kill Chrome in the app manager, relaunch, watch the
first launch animation after that, it'll be just white without the recent
sites tiles 2) press Back in Chrome, use adb shell dumpsys activity
activities and you'll see the main Chrome activity in state=STOPPED, not
destroyed.
And actually, it looks like it's not just Chrome DialtactsActivity.java
(in Contacts):
@Override
public void onBackPressed() {
if (mInSearchUi) {
// We should let the user go back to usual screens with tabs.
exitSearchUi();
} else if (isTaskRoot()) {
// Instead of stopping, simply push this to the back of the
stack.
// This is only done when running at the top of the stack;
// otherwise, we have been launched by someone else so need to
// allow the user to go back to the caller.
moveTaskToBack(false);
} else {
super.onBackPressed();
}
}
The tradeoff is of course a somewhat higher memory usage, and potentially
emails from users asking why does your activity keep running, it's really
affecting my battery and has been proven to cause baldness and insomnia.
-- K
On Thursday, January 31, 2013 8:35:32 PM UTC+4, Pent wrote:
Tearing my hair out over this one.
I'm offering the user a choice of several dark or light themes.
Setting with getApplication().setTheme() and setTheme() in onCreate of
activity
(as the first thing in that function).
There's a period while the app loads when the screen goes black. If
you have a light desktop, it's very disconcerting (flashes). Of course
I could set a fixed white theme in the manifest, but then the inverse
problem occurs when user selects a dark theme.
Tried everything I can think of e.g. overrode Application, set in
Application:onCreate, created a FrontDoor activity that just sets the
theme then loads the relevant dedicated Light or Dark activity.
It appears Application:setTheme is completely ignored.
The current best solution I have is to set a manifest theme with a
grey background. Could create dedicated Dark and Light launcher icons,
but
Any tips ?
Pent
p.s. tried setting a transparent application theme in the manifest,
then you can get a huge delay while data loads. And if Android is
short of memory the user keeps seeing the desktop in-between
activities.
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[android-developers] Re: Dynamic Application Theme
Funny Here's a very recent article on this:
http://android.cyrilmottier.com/?p=873
On Friday, February 1, 2013 2:08:54 AM UTC+8, Kostya Vasilyev wrote:
I see this in every app with theme switching, mine included.
My guess is that when Android performs an activity launch from nothing,
it runs the launch animation using whatever theme is specified in the
manifest, before any of the app's code is executed.
You can easily test this by setting a title for your activity in the
manifest, and then setting a different one in your onCreate. You should see
the title change (flash) after the animation completes.
It works differently in Chrome, where the launch animation has the recent
sites tiles (Chrome does not have a light/dark theme, but we're talking
about being able to control the launch animation).
I believe the reason for this is they handle the back key and use
moveTaskToBackground rather than letting the activity get destroyed.
Again, easy to test: 1) kill Chrome in the app manager, relaunch, watch
the first launch animation after that, it'll be just white without the
recent sites tiles 2) press Back in Chrome, use adb shell dumpsys
activity activities and you'll see the main Chrome activity in
state=STOPPED, not destroyed.
And actually, it looks like it's not just Chrome
DialtactsActivity.java (in Contacts):
@Override
public void onBackPressed() {
if (mInSearchUi) {
// We should let the user go back to usual screens with tabs.
exitSearchUi();
} else if (isTaskRoot()) {
// Instead of stopping, simply push this to the back of the
stack.
// This is only done when running at the top of the stack;
// otherwise, we have been launched by someone else so need to
// allow the user to go back to the caller.
moveTaskToBack(false);
} else {
super.onBackPressed();
}
}
The tradeoff is of course a somewhat higher memory usage, and potentially
emails from users asking why does your activity keep running, it's really
affecting my battery and has been proven to cause baldness and insomnia.
-- K
On Thursday, January 31, 2013 8:35:32 PM UTC+4, Pent wrote:
Tearing my hair out over this one.
I'm offering the user a choice of several dark or light themes.
Setting with getApplication().setTheme() and setTheme() in onCreate of
activity
(as the first thing in that function).
There's a period while the app loads when the screen goes black. If
you have a light desktop, it's very disconcerting (flashes). Of course
I could set a fixed white theme in the manifest, but then the inverse
problem occurs when user selects a dark theme.
Tried everything I can think of e.g. overrode Application, set in
Application:onCreate, created a FrontDoor activity that just sets the
theme then loads the relevant dedicated Light or Dark activity.
It appears Application:setTheme is completely ignored.
The current best solution I have is to set a manifest theme with a
grey background. Could create dedicated Dark and Light launcher icons,
but
Any tips ?
Pent
p.s. tried setting a transparent application theme in the manifest,
then you can get a huge delay while data loads. And if Android is
short of memory the user keeps seeing the desktop in-between
activities.
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[android-developers] Re: Dynamic Application Theme
http://android.cyrilmottier.com/?p=873 Good link, thanks. Unfortunately it only helps with static configuration, which is not the problem. The comments show that Romain also doesn't have a solution for user-preference-based theming. @Kostya: I know how to control the launch theme, the problem is doing it dependent on user theme. If I misunderstood how the Chrome setup might help, could you please let me know ? Pent -- -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en --- You received this message because you are subscribed to the Google Groups Android Developers group. To unsubscribe from this group and stop receiving emails from it, send an email to android-developers+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
