Android :: Change Object Positions In Layout?
Jun 7, 2010
I'm currently working on a very simple aplication, and I intended to make it change the visual aspect depending on the screen size. The application just has 6 buttons like this:
I'm using the AbsoluteLayout, and changing the x and y of the buttons with the methods offsetLeftAndRight and offsetTopAndBottom. I'm not changing the layout of the buttons in the xml file, so the all start in the same place.
However, if I use this methods inside the onClickMethod they sometimes appear where I want them, sometimes don't (can't figure out why), but if i use them in the onCreate method, nothing happens.
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Sep 30, 2009
I need to implement a screen containing a list of blocks one below the other. Each block will contain mutiple superimpose elements (Images, text) for which the relative position needs to be specified with respect to the top left corner of the block.
For creating the list of blocks i have used listview. For each block i tried to use relative layout.This works ok when the phone is in landscape mode and absolute position is specified relative to left edge of the phone. But when the phone is put in the portrait mode the layout gets distorted.
1) What layout can be used for this scenario?
2) Can relative positions be specified in terms of percentage of screen width/height instead of pixels?
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Dec 30, 2009
I've been trying to figure out how to make some sense of a dumped XML layout, and it's progressing 'pretty good'. The only thing I'm currently unsure about is the following:
When I use the command:
aapt dump xmltree <pathofapk> <pathofxmlfile>
I get the following result:
CODE:.............
That's all good, but what I'm trying to figure out is how to convert the following code into the XML layout file:
CODE:.................
Converting those values to decimal would result in:
CODE:.................
All good, but I've been trying to figure out what the (type 0x5 means). With all other types, the result is defined in the Android.util.TypedValue.class file
Decompiling that, gives the following result for 0x5:
CODE:...............
Makes sense, in a way. But, I need to know what kind of value it is, so looking down, I find the following value:
CODE:.............
But, when I try to use 2561mm and 1025mm (It's a tad much anyway, 25cm is.. larger than my screen), The whole screen is filled with the 'parent LinearLayout'.
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May 4, 2009
I create a application and the main activity reference by the main.xml. The main.xml has a LinearLayout element. So my code is setContentView (R.layout.main) to show the main window.I need add other element such as Button or EditView, but I don't want add the XML line to the main.xml.I hope use the layout.addView(...) to add the elements to my Activity. So I need get the current LinearLayout object and can invoke the addView function. So How can I get the default layout?
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May 31, 2010
I have a set of custom views that I would like to add to a LinearLayout object. However, the first object I add to the layout (I do this dynamically, during runtime) has a OnMeasure method that tries to get as much space as possible resulting in that it get's all the space LinearLayout object. This is correct behavior, but when I then add more objects following that I want the allocated area for the first object to decrease so the others will fit. As it is now, each following object will get zero space, and hence won't be visible.
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Jun 12, 2010
I need to create a map with items on it (the map consists of a drawable object, which represents a room) and I thought about using buttons with background images for the items so that they are clickable.
I guess the AbsoluteLayout fits here the best, but unfortunately it's deprecated. What layout would you recommend me for this kind of application ? Is there another layout which supports X/Y coordinates ?
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May 21, 2010
I have the following linear layout. What I don't understand is if I set the background to another image, the padding information are reset. Is there a way to prevent this?
<LinearLayout android:id="@+id/aPanel"
android:orientation="horizontal" android:layout_width="fill_parent"
android:layout_height="wrap_content" android:background="@drawable/bkground"
android:paddingLeft="15dp" android:paddingRight="15dp">
<!-- some children here -->
</LinearLayout>
I see the position of the children get shifted when I change the backround drawable of the linearlayout 'aPanel'.
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Sep 9, 2009
I want to do some automated testcase with Instrumentation . Suggest that my AUT has 2 Activity. After clicking the button in ther first Activity, the second one will be shown with new content base on what we enter in the first Activity.) Instrumentation provides us the function called startActivitySync() and return the Activity object for processing. My question is how we can get the pointer of the second Activity after the it is shown by clicking the button on the first activity.?
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Jun 8, 2009
I would like to convert a Picture object to Bitmap object in memory, without writing data to disk.
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Sep 21, 2009
I have an Activity that running on system. I can get the Intent that is used to start the activity. But i don't know how to get the Activity object from the Intent object or something else. Can anyone tell me how to do this??? Note that, I don't use Instrumentation object.
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Jul 5, 2010
When I click the ListView in layout1, it will go to layout2 and show some imformation. But when I click the button I designed to back to layout1, I can't see the ListView. Just black background.
Here is the Button code:
CODE:..................
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Sep 24, 2009
Is there a way I can change the layout to Android Market when browsing, not so keen with white text on black background?
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Sep 26, 2009
I'm trying to modify the default layout for the MediaController. I'd like to remove the fastForward/fastRewind buttons and maybe do some resizing, etc. I know it's possible to remove the buttons if I call the MediaController(Context, useFastForward) constructor, but is there any other way to change the layout of the controller?
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Jul 14, 2009
Is it possible to change the layout of the softkeyboard?
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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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Aug 12, 2010
There is the way to change visibility of View, but how can I change programaticly visibility of layout defined in XML? How to get layout object?
<LinearLayout
android:id="@+id/contacts_type"
android:orientation="horizontal"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:visibility="gone">
</LinearLayout>
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May 25, 2010
For an application I need to place some objects at the exact position that I want to have them and therefore I need to use AbsoluteLayout this time.
I want to add buttons dynamically exactly like in the following XML - but during runtime.
CODE:................
How can I archive this? I tried it with the following code to add a button, but I haven't found a function so far to set layout_x and layout_y. How can I do this?
CODE:....................
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Aug 25, 2010
I want the ability to re-arrange Views in a LinearLayout, without specifying specific pixel locations, at runtime. for my proof of concept, I have a layout with 2 TextViews, one red, and one black. The red TextView is on the left. I want onClick to set it to be on the right, without adjusting margins, as if I'd re-written the XML of the layout, with the red TextView second.
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Apr 21, 2010
How do I change the size of the controls placed in a layout? (by any method) I tried to change the height of an EditBox ->setHeight(10); doesn't seem to work.
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Mar 31, 2010
I want to know how to change dynamically a ListView's item layout. To be exact, i want to know the method that the ListView's bindView method is called at runtime. if the bindView method is artificially called by a other method. then i will change a ListView's item layout.
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Feb 19, 2010
The xml files that contains the Activity layouts can be rendered by Eclipse.
How do I get that Eclipse screen area to have vertical orientation, not horizontal (inside Eclipse - it correctly shows as vertical in the emulator)?
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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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May 24, 2010
I have a simple Android application, with 3 buttons. When i click on the 1st button, i wanna change the background color of the layout (which is now white... i wanna change in other color, when i press the button). How can i do this?
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Oct 19, 2010
My question today relates to the android home screen and where it stores icon / widget positions. Specifically, I am interested in accessing the positions and sizes of any icons that are currently being displayed. I have, so far, been unable to find a method of retrieving the positions of other applications but i figure it must be possible in some way due to the presence of third-party home screen applications. Ideally, I am hoping to query the positions of whatever is on the screen at the moment from a live wallpaper and adjust my rendering accordingly.
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Aug 27, 2009
How can I retrieve the positions of the selected item in a multichoice listView ? The getSelectedItemPosition method returns only the first one...
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Sep 14, 2010
I have a layout which contains a TextView.
The content of the TextView might change on runtime. (discussed on a different issue here: http://stackoverflow.com/questions/3683727/layout-with-dynamic-position )
I can position the layout by drag&drop. If the size of the layout doesn't change, the position stays, but as soon as the size of the layout changes (because more text inside the TextView) the position is reseted.
I use the layout(left, top, right, bottom) to position the layout.
Now I don't know where I should add my layout() call to make sure it stays at the right position...
Here is my class
CODE:............
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Oct 7, 2010
I'm unable to change the layout_gravity of a Button programmatically, does anybody know how to do this?The gravity attribute is easily changed using Button.gravity(), Ie it changes the gravity of the text inside the button I cannot change the gravity of the button itself. I also cannot seem to find this in any of the layout params contructors.
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Jun 17, 2010
I have defined an List View in xml as below
Code...
And i need to re-define the layout margin upon some result in my programe ,how i can achieve this
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Dec 9, 2009
Code...
I cannot find any information on how to change or hide the background image.
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