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Resume an activity in the same orientation it had when it was paused?

I would like to ask if the following behaviour is possible and, if it is, how I can achieve it. I need this behaviour for a very specific reason.
I have two activities, I will call them Activity A and Activity B. Now let's look at this example:
From activity A, in portrait orientation, I launch activity B (which has a fixed landscape orientation). The user, as the activity B is displayed in landscape, obviously rotates the device. The activity B is finished and activity A is resumed. The user keeps the device in landscape orientation so the orientation of the activity A will immediately be changed just after is resumed.
What I want is avoid that the orientation of the activity A changes when the user goes back to it. I want to resume the activity A in the last orientation it had and only allow orientation changes after that.
Locking the orientation is not an option as I want to allow the user to change it anytime.
The android:configChanges="orientation|screenSize" solution is neither an option as I want my activity to be re-created after an orientation change.
Do I have an option to achieve what I want?
Thanks!
EDIT: I forgot to say that saving the current orientation before the activity A is destroyed and restoring it when it is created again is not an option too. Activity A should NOT be re-created after activity B finishes.
EDIT 2: I was thinking now and I realized that I could rewrite the question from another point of view.
I would like to avoid the re-creation of the activity A when it is resumed after activity B finishes.
Afaik, when the device orientation change occurs, a message is sent to ActivityThread (with value RELAUNCH_ACTIVITY). That causes the activity A to be re-created with the new screen orientation.
I want to avoid the activity A relaunch as that would solve my problems and would keep the last orientation it had.

I don't think it is possible to do this as you've described. When the user returns from the landscape activity to your previous activity you would need to lock the orientation to portrait (in order to ignore the landscape orientation that the phone is now in). Now, if the user rotates the phone, you won't see the rotation and you won't be able to change the orientation. Since you can't really tell whether the user just rotated the phone or if the rotation is due to returning from a landscape-only activity, you can't tell these 2 conditions apart.
However, assuming that you can somehow differentiate between these 2 cases, try the following:
If you don't want Android to recreate your activity on an orientation change (even only in certain circumstances), then you will need to tell Android that you want to handle orientation changes by yourself by setting
android:configChanges="orientation|screenSize"
in the manifest.
Now you'll need to implement onConfigurationChanged() to get the behaviour that you want. In the case where your activity has launched another activity with fixed orientation, you'll want to save the current screen orientation before launching that activity. When the user returns to your activity Android won't destroy it and create a new instance it will just call onConfigurationChanged(). When you get the onConfigurationChanged() call you'll need to check if the user just rotated the device or if this is the result of returning from an orientation-locked activity. In the case where this is the return after launching another activity you can then lock the screen orientation to the previous orientation by calling setRequestedOrientation(). In the case where the user just rotated the phone, you can then either:
Recreate the activity by calling Activity.recreate() Note: this only works if you are running on API level 11 or higher
Recreate the activity by calling your own method that basically does everything necessary to recreate the Views (call setContentView()) and reset your member variables as if the activity were recreated
Recreate the activity by launching your activity again: startActivity(new Intent(this, this.class) and then calling finish() to get rid of the current instance.

You, probably could store your activity's current orientation in shared preferences in onStop() and restore it in onResume()

activity reload while orientation change in android

I have developed an application and it contains web view.
My issue
When my phone's orientation changes from portrait to landscape the whole application loads again and the web view reloads showing the first page of website.
So I am getting confused about the screen orientation or saving the data during that phase, so how do I fix it...

Yes, in Android the Activity is destroyed and recreated when your change the screen orientation. Thus you need to restore your applications state on recreation. On way is to use the callback method onSaveInstanceState() which you can use to save the state in a Bundle.
The Activities are explained here: http://developer.android.com/guide/components/activities.html and I suggest you take a look on that page for examples and more detailed instructions.

The default behaviour is to restart the activity when a configuration change happens (such as orientation change).
To override this you need to tell the system you'll handle orientation change yourself by adding this to your manifest file in your <activity> element:
android:configChanges="keyboardHidden|orientation|screenSize"
You may also want to override onConfigurationChanged which will be called when such a change happens.
See http://developer.android.com/guide/topics/manifest/activity-element.html#config

The Android Activity lifecycle clearly indicates this behaviour .
What happens
Whenever you start an Activty is gets created(after onStart() method) the
onCreate(Bundle onSavedInstance)
The variable onSavedInstance mentioned above initially recieves null as nothing is saved.
But during the orientation the whole layout hierarchy has to adjust according to the new mode from an existing mode(from portrait->landscape or vice-versa).This change may remove the previous data that you had in your activity.So to avoid such a problem(loosing data), there is a method
onConfigurationChange(Bundle saveSomething)
This method will be called for you to handle some configuration changes into this,
The default implementation will save you some data like some text in an editText.
Note This method as far the specs goes should be used to save some trivial data.
Example
Suppose you had applied a background colour to the activty layout and now you rotated it default implementation won't save it but onConfigurationChange if you want you can save it like this
saveSomething.putInt("color",1);
Inside onCreate
protected void onCreate(Bundle onSavedInstance){
if(onSavedInstance!=null){
int color=onSavedInstance.getInt("color");
if(color==1){
setBackgroundColor(Color.BLACK);
}
}
}
Add the following line inside the activity element of your manifest file you will be handling the changes in configuration
android:configChanges="keyboardHidden|orientation|screenSize"

Activity restarts my game on screen rotation (Android)

I know this question was already asked, but mine is a little different:
I have 2 different layout files for my game; one for portrait mode and one for landscape. When I rotate the screen, the onCreate method restarts my game (creates all the elements again). I don´t want this to happen, so I wrote this line in the manifest:
android:configChanges="orientation"
It works, onCreate is not called, but the new layout is not being showed properly!
I tried to put the following code in my Activity, but it just keeps doing weird things:
#Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
setContentView(R.layout.gameview);
}
how can I fix this?
thanx guys

First of all understand how orientation changing in android works:
By default activity restarts on orientation changed event (and goes throw onCreate).
If you write android:configChanges="orientation" in manifest - it means it will not be recreated, but just remeasure and redraw view tree.
Comments about your code:
If you have different layout for different orientations - you have to recreate activity on orientation changed.
Method setContentView should called just once per activity lifecycle.
General way to handle this situation is:
Save game state in method onSaveInstanceState
In onCreate method restore game state if it is supplied (savedInstanceState param is not null).
Remove listening of configuration changing from manifest.

You should use onRetainNonConfigurationInstance() for save state and for restore state getLastNonConfigurationInstance() for any objects. Or hard-code set android:screenOrientation="portrait/landscape" in manifest.

Negate orientation change - Android

I'm developing an app that only some pages can be displayed on landscape orientation, I do not want to lock the screen on display, I wish to deny Android do a orientation change.
There's something that I can use for it? Like, at runtime on orientation change, Android asks if it's possible to go to that orientation?
If there's not, how can I lock the current screen orientation? I know that setRequestedOrientation can do that, but it implies in discover the current orientation (and even discover the correct orientation like 'normal' or 'inverse' portraits/landscapes) and lock to it.
EDIT:
There's only ONE activity on this app, and based on it's state (that changes trough time and user input) it can be rotated or not, that is my problem.
As seen at http://developer.android.com/guide/topics/resources/runtime-changes.html about configuration changes:
"Handle the configuration change yourself
Prevent the system from restarting your activity during certain configuration changes, but receive a callback when the configurations do change, so that you can manually update your activity as necessary."
Even with that the configuration changes, I wish to block this behavior before that.

Add one othese to each activity.
public void checkActivityPos() {
if(somthing == "this") {
myActivity.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
}else {
myActivity.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
}
}

Android screen orientation change have different behaviour on tablet

I have activity with:
android:screenOrientation="portrait"
and code:
if(blah blah blah)
this.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE)
in activity onCreate.
1. When test on smartphone "setRequestedOrientation" causes destroy activity and create again with desired screen orientation.
2. When test on tablet device this code runs only once activity. After "setRequestedOrientation" it just continues without destroy and create again activity. This happens when start code without debuger or without breakpoint in onCreate. If I stop in onCreate function - I see in logs - destroying and onCreate again.
How to catch specific situation with tablet?
UPDATE:
- Problem with tablet occurs when 'Orientation lock' if off. If 'Orientation lock' is enabled program works in same way as in smartphone.
UPDATE2:
- Is it possible to set preffered screen orientation to whole application. So when activity starts to know desired orientation. This will make unnessesary call 'setScreenOrientation' and avoid second activity creation.

After whole day spent with this issue I made following changes in my application:
1. Every activity /without first/ are declared as android:screenOrientation="behind".
2. In first activity I set preferred screen orientation using user selected mode /from my menu.
3. I call setRequestedOrientation only when user changed mode in my menu options.
This causes activities to be created only once. Finaly :)

No.. you cannot set preffered screen orientation for whole application... instead you should call for setScreenOrientation in respective activies only... Refere this link here...

You can set
<activity ActivityName = "test_activity"
android:configChanges="orientation">
</activity>
in your android manifest file. It will not allow activity to restart on orientation change but onconfigurationchange will be called normaly.
Later you can getdisplayorientation in onconfigurationchange and set whatever you want.