Android Question Landscape both 90o and 270o without Portrait?

[Alberto Iglesias]

Anybody knows how to define Orientation ONLY IN LANDSCAPE but in 90o and 270o without portrait orientation?

I need the screens works only in Orientation 0 and 2

Like this:

 

[sorex]

at the top of your project you can set it to be landscape only

 

[Alberto Iglesias]

No. it´s not working!

This way working only with orientation 0, but not orientation 2

 

[Deleted member 103]

#SupportedOrientations: unspecified

Dim ph As Phone
ph.SetScreenOrientation(8) 'reverseLandscape
ph.SetScreenOrientation(9) 'reversePortrait

https://developer.android.com/reference/android/content/pm/ActivityInfo.htmlhttps://developer.android.com/reference/android/content/pm/ActivityInfo.html

 

[Alberto Iglesias]

Not working! I understand for ONLY landscape mode (reverse or no) maybe this:

Dim ph As Phone
ph.SetScreenOrientation(0) 'Landscape
ph.SetScreenOrientation(8) 'reverseLandscape

Landscape: https://developer.android.com/reference/android/content/pm/ActivityInfo.html#SCREEN_ORIENTATION_LANDSCAPE
Reverse Landscape: https://developer.android.com/reference/android/content/pm/ActivityInfo.html#SCREEN_ORIENTATION_REVERSE_LANDSCAPE

But I tried in here and not working!

and of course:
#SupportedOrientations: unspecified

 

[Deleted member 103]

So, works for me.

 

[Alberto Iglesias]

Hi Filippo,

I understand you can define landscape or landscape reverse, in here works manually, BUT you can left you device with auto-rotate and when you rotating your device change automatically.

In your app you define landscape or reverse , not both, right?

 

[Deleted member 103]

In my app, the rotation is not automatic, it is defined only by the setting.

 

[Alberto Iglesias]

ahh ok. I need something automatic. I see a little game do this. I will check it out

 

[LucaMs]

I "found" this strange behavior.

Normaly, if you don't specify the orientation, when you rotate the device, Activity_Create and then Activity_Resume will raise.
If you set the orientation using SetScreenOrientation, the Activity will no more recreated.

 

[DonManfred]

ahh ok. I need something automatic.

try changing manifest

this will set the activity video to be landscape only. do this for any activity you want to predefine....

SetActivityAttribute(video, android:screenOrientation, "landscape")

 

[Alberto Iglesias]

the "effect" I need for this app is like this:

observe is not stop in portrait mode, only both landscape

 

[Alberto Iglesias]

I "found" this strange behavior.

Normaly, if you don't specify the orientation, when you rotate the device, Activity_Create and then Activity_Resume will raise.
If you set the orientation using SetScreenOrientation, the Activity will no more recreated.

It´s only save the last orientation for next time you start your app

 

[Alberto Iglesias]

try changing manifest

this will set the activity video to be landscape only. do this for any activity you want to predefine....

SetActivityAttribute(video, android:screenOrientation, "landscape")

Hey DonManfred,

Not work, it´s the same like this:

ph.SetScreenOrientation(0)

or

#SupportedOrientations: landscape

 

[LucaMs]

You should set the application orientation as Unspecified and then in a "orientation changed" event use SetScreenOrientation, according to a previous Landscape orientation saved in a file.
However, as far as I know, the only way to know if the device has been rotated is to compare the size of the Activity in Activity_Create ot Activity_Resume and these events do not raise if you use SetScreenOrientation.

I know that this is not a helpful answer, it is an observation.

 

[moster67]

If you need to detect orientation change you can use the code-snippet shown in my post here:
https://www.b4x.com/android/forum/threads/videoview-optimized-for-orientation-change.69579/

 

[Alberto Iglesias]

Hi monster67,

I see this solution, but controlled by a timer 10x per second, depends of hardware you can have delay in your app.

I will try to decompile this game, to try how was constructed