Android :: View Size After Orientation Change
Jun 17, 2009
Is the view aware of the orientation change in order to return updated size after a change in orientation? I'm handling the orientation myself (android:configChanges="orientation|keyboardHidden"). Does it means that I have to take into account the orientation state when querying for view.getHeight()? The view returns the same value as before the orientation change. It this the normal behavior or I should "notify" somehow the view to "refresh" its size.
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Oct 2, 2009
is there a way to have a view use a different layout when an orientation change occurs. suppose i want the view to look one way in portrait and another way in landscape. all the same data, but arranged differently.I'm thinking one way to do this would be to have two different linear layouts with android:visibility="gone" and simply display the appropriate one (set android:visibility="visible") based on orientation -- i.e. do this from code.is there a way to do this in xml? or something like this (i.e. in landscape, put the textview here, in portrait, put it here instead)?
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Sep 3, 2010
I want my view to change when it has changed to horizontal orientation code...
This works, but I want my layout to switch back when it is in portrait mode.
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Oct 20, 2009
I have a custom View, what is the proper way of saving / restoring it's state after orientation change. I know I should implement onSaveStateInstatnce() and onRestoreInstanceState() methods, but how exactly (with which argumets) and when I should call them?
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Nov 11, 2010
I want to change the size of surface view at run time when it is changed to Landscape Mode?
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Dec 3, 2009
I have a View that I've placed into a ScrollView.The View paginates text.If the text changes, then the height of this view will also change (expand or contract, depending on whether the new text takes more vertical space or less).For debugging, I draw a rectangle around the view to show its current size. After I repaginate, I cannot get Android to cause the View to change its size -- I have tried calling measure() myself, calling requestLayout(), and calling forceLayout() -- even though my overloaded onMeasure gets called, and calls setMeasuredDimension() with the correct values, the view remains the same size as it was before repagination. What am I missing?
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Oct 14, 2010
I have an ImageView that contains a bitmap. Now the bitmap can change size within a known range. This makes the surrounding views to relocate which I want to prevent. I've tried setting margins and padding for the ImageView but without success.
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May 14, 2009
I have created an activity for my game which handles all orientation changes by itself and has a fixed "portrait" layout. Actually it uses the accelerometer and is rendered using 2D canvas methods. If the level has been completed I show up a highscore dialog in which the user can enter his name. The dialog is floating above the underlying level screen which gets blurred out nicely. This generally works.
Problem is that the dialog does not get rotated if the orientation of the phone changes. So even if the keyboard is exposed the dialog is shown in portrait mode instead of landscape. I have tried to use an activity with dialog theme instead but the behavior didn't change. After several tries it seems that I have found the reason for this: Once there's an activity with fixed orientation in the activity stack then all subsequent activities keep this orientation, too. They will not react on orientation changes anymore (e.g. if the keyboard gets exposed).
After upgrading to 1.5 SDK the described behavior changed a little bit. Now at subactivities indead react on orientation changes like expected. However, the need to have an opaque background! That means that neither dialogs nor activities with dialog theme will work. Those will stick with the orientation of the underlaying activity. So my workaround is to first start a sub-activity with an opaque black background. This activity then shows my highscore dialog on top. It looks quite okay but I wonder if there's a better solution? Is it possible to show a dialog above a fixed portrait or landscape activity which automatically adapts to orientation changes?
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May 12, 2010
In my project I'm Multiple choice list....in this all text view in white color...i want to change text color. in program I'm use simple xml main.xml
<?xml version="1.0" encoding="utf-8"?> <RelativeLayoutxmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:background="#ffff00"> <List View android:id="@+id/android:list" android:layout_margin Top="2px" android:layout_marginLeft="2px" android:layout_marginRight="2px" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_weight="1"android:background="@drawable/shape_1"android:listSelector="@drawable/shape_3" android:textColor="#ffff00" android:layout_marginBottom="44px" /> </RelativeLayout> I'm ListActivity class setContentView(R.layout.main); setListAdapter(new ArrayAdapter<String>(this,android.R.layout.simple_list_item_multiple_choice, GENRES)); listView =getListView();listView.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);
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Sep 23, 2010
So I'm loading images from a web service, but the size of the images are sometimes smaller or bigger than other images and the visualization looks silly when I put them in a ListView in android. I'd like to fix the size of my ImageView so that it only shows a portion of the image if it's larger than a preset amount. I've tried everything I can think of setting the setMaxWidth/setMaxHeight, setting the scale type to centerCrop, using ClipableDrawable wrapping my BitmapDrawable, setting using Drawable.setBounds(). I've tried setting in the XML and programmatically, but neither worked. I'm very surprised setting max width/height didn't do anything. Below is the XML I'm using ImageView definition in my layout file
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Jul 30, 2009
I have a notification that starts my activity and passes a messages using the intent's putExtra() function. The message is then displayed to the user in the activity's onCreate function. When the application is restarted due to a orientation change, the message is shown again as it is still in the intent's bundled data.
How can I remove the extra data?
I tried the following:
Bundle bundle = getIntent().getExtras();
if (bundle.getBoolean("showMessage")) {
// ... show message that is in bundle.getString("message")
// remove message
bundle.remove("showMessage");
}
But the message will still be shown after the orientation changed, seems like the intent used is not the one I changed, but the original one. The only workaround I found is to save the showMessage additionally in onSaveInstanceState(). Is there another way? Or is this the way to go?
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Jul 22, 2010
I have a widget which has say, a dimension of 294*72(portrait). But when the orientation is changed, I need to change this dimension of the widget to another dimension which would look good on the landscape orientation.
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Oct 1, 2010
but no use even if try increasing the minheight....
<?xml version="1.0" encoding="utf-8"?>
<ScrollView
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<!-- Here you put the rest of your current view-->
<LinearLayout
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"........................
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Jun 8, 2010
I have an image set as my background and when it is vertical, the image looks fine. However, when the orentation is changed, the image get streched out. If there a way that I can change the image based on the orentation of the device?
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Nov 16, 2010
I have an ImageView which I want to always be the same size. If the image is smaller than the view, I'd like it to be centred in the view. If the Image is larger than the view then I'd like it scaled down - with aspect ratio preserved.I've had several attempts at this myself
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Aug 16, 2010
I am having a listview in my App which shows perfectly in Portrait mode. But when I change orientation to landscape, sometimes the width remains as that of Portrait mode. Even the scrollbar for the list comes at the center and remaining part of the screen remains blacked out. This happens only with the list view. Other views show perfectly. I have designed the layouts such that the Portrait layouts look feel proportionate in landscape mode. I want to avoid restarting the activity so I have not put the layouts in the landscape folder. I tried invalidating the listview in onConfigurationChanged() but of no use. When I navigate in the list in landscape mode, the width automatically gets adjusted.
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Mar 25, 2009
I am building a AlertDialog in java code, so by default it is portrait but I want to show it in landscape orientation. How to do it in Java code?
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Oct 8, 2009
I notice when using the emulator that when the screen is flipped, I get a following logcat message:
INFO/WindowManager(589): onOrientationChanged, rotation changed to 1
How can I catch this in the code? I want to know whenever the orientation changes. I assume I have to set a listener, but I can't find an example anywhere.
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Mar 5, 2010
I'm doing an APP that shows some dialogs. Those dialogs are Alert dialogs, and when they are being showed if I change the orientation of the mobile I lost them...they are not being kept on the screen.
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Oct 1, 2009
Do Views know changes in orientation? In my case, I create popups from TextView and need to know when the orientation changes(porttrait<-- >landscape). I cannot depend on activity's onOrientationChange.
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Feb 11, 2009
I am making an Android app which is currently coming along nicely - I've hit upon a couple of stumbling blocks.
1) How do I stop the screen from going dim/off and the phone locking while the application is running?
2) Can I force the phone to enter landscape mode on running my application?
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Jul 1, 2009
My app *sometimes* when orientation change, leaks Activities (getInstanceCount() increases from time to time) and i cannot figure out where references to my Activity or rather Context are kept - tried to use jhat but it couldn't help me much.
what is strange: it doesn't always happen on orientation change, so its even harder to fix.
btw when doing normal app life cycle - start, do something, exit - everything is ok - getInstanceCount() always returns 1.
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Apr 28, 2010
I have an activity that checks stuffs online when it's created (is the GPS on and if not it asks if the user wants to turn it on).
The problem I'm having is that it is also doing it everytime I change the orientation of the screen.
I've read some comments on onConfigurationChanged() but is there a better way to be sure I'm checking the GPS only when the activity is first created?
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Jun 23, 2010
built a simple app that displays an alertDialog with two buttons.The problem is it's not getting dismissed when i change orientation. After change i get a leak warning on debugger and the dialog appears twice(pressing back hides the first dialog, only a second back dismisses it completely).
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Nov 6, 2010
I want to know how to change the orientation of my layout inside of eclipse but when I click the "layout" button it still shows it as a vertical layout.
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Nov 6, 2010
I want to know how to change the orientation of my layout inside of eclipse.
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Mar 17, 2009
consider the simple layout:
CODE:..................
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Dec 29, 2009
I am developing a photo frame widget, all works except on an orientation change to landscape mode my appwidget doesn't display correctly as I have it set to portrait dimensions and it is too large for the display. I would like to run some code to resize the image so that everything displays correctly and it uses all the space that I allot. What is the correct way to do this? I can think of 2 methods however both seem inefficient. The first would be to register a broadcast reciever to take orientation changes, however I don't want to redo my appwidget everytime the phone is turned on its side as the majority of the time the homescreen is not showing when the orientation is changed (ie other apps are used, and I don't need my code running in the background). I only need it to run when the home screen is shown. The second would be to setup a service to manage my appwidget but that also seems inefficient to be always running in the background.
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Apr 24, 2009
Is it possible to have a user choose how an app should respond to orientation changes? I have it set to android:screenOrientation="sensor" in the manifest but I would like users to be able to turn this on and off or set landscape or portrait orientation permanently.
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Nov 2, 2010
When I change orientation application restarts and I lost my current data.. I am using activity group which contain lots of activities when i change orientation application restarts from main activity. is it possible to avoid this application restart on orientation change?
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