Android :: Achieve Square Layout And Buttons In Main.xml?
Oct 30, 2010
I would like to have a layout with 5 times 5 buttons. Each of them should have the same width and height (they should be square). And I want the whole matrix to use the screen width (or height, depending on rotation).
I currently do it "by hand" in the Java code:
CODE:...........
This can be improved by obtaining screen width first and then dividing by 5 to get rid of this literal 60. But I'm wondering how I can do this in the res/layout XML file? How can I specify for the height to be the same as the width? (I can set the width to match_parent.)
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Apr 19, 2010
Things go fine, and i am able to design a layout like this...
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Aug 14, 2010
While developing for Android, I am unable to open more than one main.xml file in an Eclipse editor at a time.Each time I open one, it simply replaces the editor (tab) of the first main.xml with the new one, instead of opening a new tab - even if the contents of the existing tab were unsaved.Even stranger, I can open multiple main.xml files from different projects with no problems.This only happens when they're within the same project.
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Sep 14, 2010
How can I achieve the following layout in Android?
What I would like, is to have the 3 blue boxes top aligned in their view, and then I'd like to have the red box centered underneath the blue boxes, but so that when I animate the red box up, it slides underneath the blue box.
I have tried placing the blue and red boxes in different layouts, but as soon as I animate the red box up, if it goes outside the border of its layout, it disappears (I don't want the red box's layout to clip the red box, I want the red box to slide under the blue box so that the blue box occludes the red box.)
I have also managed to create this layout using a series of nested layouts, but because of the draw order, the red box always appears on top of the blue box. I attempted to use the bringToFront() method, but I found out that this only works on sibling views within the same layout. Unfortunately I can't get this type of layout while keeping all 4 views within the same layout. Any suggestions? (also, if anyone has better suggestions for the title of this question I'm all ears)
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Jan 23, 2009
Is it possible to build a GridView object in XML with 3 columns and 4 rows of Image buttons? It doesn't seem to have similar containment relationship like LinearLayout or RelativeLayout viewgroups.
I want to do this entirely in an xml layout file. When I put ImageButton xml tags inside a GridView xml body, The layout panel in eclipse is throwing an exception: UnsupportedOperationException:addView(View, LayoutParams) is not supported in AdapterView.
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Aug 13, 2010
Is it possible to have another layout in my main layout?
Such that i can set my imageview in another layout.
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Dec 22, 2009
What is the main use of relative layout?
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Dec 22, 2009
Is there a way to customize the four main buttons? I noticed that Back long-press and Menu long-press are not set to do anything. Seems like a waste and I would like to make use of those.
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Nov 13, 2010
This is difficult for me to diagnose because the Log doesn't provide the offending code line that indicates what caused it.Running the app in the Emulator seems to work OK until I press Home or Back from the Main Activity. Using Back between the activities in the program seems to work OK, it only fails at the Main. I don't have the app finished yet so I haven't loaded it to a device yet.The Log says there was a null pointer exception so I would like to find why.The log points to the android routines (and I don't appear to have the source for those routines in the emulator-most but not all and these are refering to those I can't access). The log gives up at one point and says "11 more".It would be nice to see the remaining 11 in the hopes that one of them points to the line in my code that caused the offense.I'm looking for ideas on ways to find the error and hopefully cure it.
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Jun 8, 2013
I have a tab 2 10.1 with the latest software from Rogers in Canada.My problem is, my daughter is 16 months and loves to play games on it but "ALWAYS" hits the back button or home button or the advertisments etc.Then it kicks her out of the games, it is very fruastrating as I am a Android fan, but I see IPADs that when in kid mode, the kid "CANNOT" get out of the games.
Is there a APP, or mode I am missing, I have tried 2 different APPs and both SUCK and allow her to still get to Home screen or hit advertisments or freeze the games.
I purchased these mainly for my kids and wife and am starting to hate them for very poor usability features that IPADs do not have problems with? And I have used IPAD's and really really hate APPLE's software.
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Jul 27, 2010
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/hello"
/>
</LinearLayout>
Since the root element is a LinearLayout, which extends ViewGroup, why does main.xml get turned into a View instead of a ViewGroup? For example, in my main Activity class, I try to get the number of subviews that the LinearLayout contains like this:
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
ViewGroup vg = (ViewGroup) findViewById(R.layout.main);
Log.v("myTag", "num children: " + vg.getChildCount());
but it crashes when i call vg.getChildCount(). What is the right way of doing it?
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Sep 15, 2010
I was looking over this code about extending an ImageView: http://marakana.com/forums/android/examples/98.html
And i was wondering how can i add the new View to an existing xml layout file, along with some other views.
Already i did this inside my main linear layout:
CODE:..........
But the problem is that this way the onDraw method doesn't get called.
Maybe some examples where you combine CustomViews with xml layout.
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Jun 22, 2010
I want to create a grid of images with text right below the images.
I created in a xml file a image_text item which basically is a linearlayout with and imageview and a textview right below.
I created a tablelayout and I want to add my custom image_text.xml to the table row. But I dont know how to reference my xml file inside. If I use the include statament, how do I pass the image id and text to my item_text.xml? code...
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Aug 23, 2010
I have looked everywhere in the forums and although I know it is in here I can't seem to find the answer to this question. How do I change the home buttons at the bottom of the main screen? I have switched to k9 mail and would like to replace the stock email icon there.
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Mar 1, 2010
I've a list view with custom list adapter(list_item.xml). I have multiple layout folder to support multiple screen size. I found out when I inflate using LayoutInflater, its always taking the view from main "layout" folder.
I've a phone with screen size "427x320".
This is my code:....................
I want the layout inflater to pick the list_item.xml from "layout-427x320" folder and not "layout" folder.
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Aug 2, 2010
I'm beginning to study Android and have a doubt. How do I open a new layout and code (xml and java) by clicking a button on the main scene?
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Feb 8, 2010
I tried so many things to relocate buttons of a list. Relocate the current button is working but the older buttons not. To clarify the situation:
There are two Activities (Activity A and B). At Activity A I customize a button and pass it on Activity B via an intent. On Activity B I move the button somewhere on the screen. This will be done with other buttons. On Activity B I also want to show the old Buttons.code..
As above mentioned, I want to move the Buttons and set them somewhere on the screen (e.g. down right). But everytime I call Acitvity B again, all Buttons are located at top left. I thought it would be achieved with .
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Nov 17, 2010
I want to create layout like this on facebook app. Тo appear with effect from bottom to top.I don't know where to find example (xml and code) for this.
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Aug 9, 2010
I am trying to make my layout look like so. I have tried gridviews, table layouts, and more but cant get it to look right. I want something like this.
CODE:........
I just cant seem to figure out how to get the layout to work with imagebuttons. What layout should I use? And could you post example code of the xml layout if possible?
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Jun 1, 2010
I want to make a layout similar to this one:
Four square buttons on the screen - each of those using half of the screen with/screen height (whichever is smaler). Independent of screen size/resolution.
I already tried to achieve this by using a LinearLayoutbut the buttons are ending up using the correct width, but still having the height of the background (not square any more).
CODE:..........
It's looking like this:
How can i acchieve the Layout to look like the image at the top above?
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Mar 13, 2010
I want there to be buttons at the bottom of the screen, but if the screen size is larger, more buttons would be added.
For example, at a small screen size, there might be 4-5 buttons at the bottom, but if you ran it on a tablet or something similar, there would be maybe 20 buttons.
It can't scroll either, it just has to dynamically fill the layout with buttons.
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Mar 5, 2010
This specific layout is just annoying me. And can't seem to find a way to have a listView, with a row of buttons at the bottom so that the listview doesn't extend over top of the buttons, and so the buttons are always snapped to the bottom of the screen.
Here's what I want:
It seems like it should be so easy, but everything I've tried has failed.
Here's my current code:
CODE:..........
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Sep 21, 2010
I'd like to add a transparent panel (relativelayout) with fill_parent in width and height.
I want to use this "glasspane" in order to block all buttons underneath. Unfortunately I cannot find the right setter / xml attribute for this.
These wont work:
.setEnabled(false); .setPressed(false); .setClickable(false); .setFocusable(false); .setSaveEnabled(false); .setSelected(false);
Maybe its better to understand if I tell you that I want to create my own dialog without extending the class Dialog.
A dialog also puts a transparent glasspane above all and absorbs all clicks underneath...
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Aug 18, 2010
RelativeLayout is more flexible, and can do what AbsoluteLayout can do and more.
http://developer.android.com/reference/android/widget/RelativeLayout....
To place views on top of one another you can also use FrameLayout, positioning these frame layouts in their parent layout:
http://developer.android.com/reference/android/widget/FrameLayout.html
18.08.2010 19:11, ericmahlon пишет:
> I have an image that will have 5 different areas that will be "clickable." Each clickable area will be invisible and play a different sound. I was told not to use an absolute layout, and use a linear layout instead. However, I am now having an issue with placing the buttons over the picture. The linear layout does not allow me to position them correctly where they need to go. How do I properly position a button so that it is over a certain part of the image?
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Apr 8, 2010
I have this layout that works correctly, a relative layout with a text view and two buttons spaced evenly below it.
CODE:........
But running layoutopt it says that "this TableRow layout or its TableLayout parent is possible useless".
Is there a way to do this layout then without the tables?
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Oct 12, 2010
I have three buttons defined in xml
CODE:..............
In Java one way to listen to them is:
CODE:.............
For second btn , same code has to be repeated with different id? How can I make it generic enough that , it can listen to all buttons (say in for loop) and while handling I should be able to differentiate different btns. (may be get elements id)
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Jun 6, 2009
I have a simple problem which makes me feel like a stupid. I really need help on this.
I have a SurfaceView which I created with Java code not XML. I created a MediaPlayer which shows its content on that SurfaceView.
When I use, setContentView(mPreview); // where mPreview is a SurfaceView
The video is played on the screen.
I need to add two buttons on the screen. So I tried something like this:
code:.........
This did not change anything. Still the video is displayed on full screen and no buttons appear. I am a java programmer both SE and ME. Things are done in this way on Java.
Does Android have a different approach?
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Sep 25, 2010
I've got the following layout:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<WebView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/webview"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
/>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<Button android:id="@+id/back"
android:layout_width="wrap_content"
android:layout_height="fill_parent"
android:text="Back" />
<Button android:id="@+id/page_number"
android:layout_width="wrap_content"
android:layout_height="fill_parent"
android:text="1 / 100" />
<Button android:id="@+id/next"
android:layout_width="wrap_content"
android:layout_height="fill_parent"
android:text="Next" />
</LinearLayout>
</LinearLayout>
Which results in the following. How do I make the buttons fit the screen and stop the WebView pushing them off?
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Nov 21, 2010
I can write a widget with a Button or ImageButton and assign a StateDrawable as background or sourcein order to make an effect when you click it. Besides that I have problems with the side of each button, my main problem is this: how do I change the StateDrawable if I want to change the image of the button from the AppWidgetProvider but still want to preserve the click effect like a StateDrawable. The power control widget in Android does things like that.
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Jan 26, 2009
I am probably missing something totally obvious, but can someone tell me how to add padding between buttons of a Linear Layout?
Code...
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