Is it possible to have overlapping views in Android? I would like to have an ImageView with a transparent png in the front and another view in the background.
edit:
This is what I have at the moment, the problem is that the image in the imageView is not transparent, the parts that should be transparent are just black. code...
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Is it possible to add a view dynamically that overlaps other views in the layout. I have Linear Layout defined for the activity. As part of the Layout I have a custom View. The content changes dynamically and sizes appropriately based on the content size, with fill_parent for width and wrap_content for height. But what I want is, dynamically take over the full screen and then based on a click go back to the normal mode. Is there a mode to display a view where - in it can overlap all other views in the layout?
View 3 Replies View RelatedI have a simple ListView and on that ListView I have placed a number of custom defined Views. The CustomView has ImageView and two TextViews.
The CustomView also has a "stateful drawable" as background, so that the background image (a 9-patch) changes if you press the Row in the ListView. When pressing the Row, the background image changes to a Red-ish thing.
The problem is that when the background changes from the default greyish, all the Views in the CustomView (ImageView and TextViews) still have their greyish background and thus creates very ugly greay boxes on top of the now redish background.
What is the best way to solve that problem? I hoped that such things were handled automatically (as it is done in for example .NET), but I was wrong it seems.
I want to overlap two imageView. I tried View.offsetLeftAndRight, but it does not work.
My code is as below:
code:.....................
I am trying to style my ListView with two 9-patch background images (16px * 9px), one dark image for default state and another green image for selected and pressed state.
It works except for just one problem that when I select or press one list item, it seems that the selected item overlap the next one a little bit as I can see some pixels of the green background image is on the top of next item.
I am implementing a music player application in Android. My play list selection screen is implemented as a tab selector widget which contains a ListActivity inside each of the tabs: Artist, Albums, Songs.
I want to update the ListView in each of the ListActivity when I delete an item from any of the lists.
i.e. When I long press an item in the Artists list a context menu is drawn with "Delete Artist"
And it should delete all the songs from this artist in the Songs ListView, delete all the albums by this artist in the Albums ListView, and finally delete the entry for the artist in the Artist ListView.
Each of the ListActivity has its own fillData() method, which updates the ListView when the button in the context menu is pressed.
How can I call the fillData() method of the Albums ListActivity after I update the ListView inside of the Artists ListActivity?
I want to populate a table, defined in layout xml file through the programmatic way. I have define Table with a single row defining its header, with all the attributes set. Now i want to know a way so that i can just replicate that header row in the table with new content.
I tried using inflator inflate(int,view) method, but at runtime it showed up with error.
Here is the XML code for the layout file defining the table
CODE:.................
I have the following XML code:.................
The idea is to change the views, whenever I press one of the radio buttons. When I press a button the first time everything works out fine, but the second time I press a button, I get an IllegalStateException, and I can't quite see why I'm getting this.
Also, the Activity seems to set all my global variables to null, which is why I have to create them every time I switch from portrait to landscape or vice versa. So I would like to know if there is a way I can save my views in the Bundle, or any other way in which I can permanently save my views, so I don't have to add or create them every time, I flip the phone. And whenever I flip the phone, it seems that it rereads the main XML file, causing the RadioGroup to be set to 2D even if the 3D button is checked. This is because I've said the 2D button to be checked from when the app is first created, but I would like to also save the state of that RadioGroup.
How do you align views relative to the "middle" part of another view? I think it is best explained with a pic of the UI I'm trying to create in android.
View 2 Replies View RelatedI am drawing several lines on a canvas using drawline, the lines are semi transparent (their paint has an alpha value <255) only problem is that the point at which they cross creates a dot of less transparent color (obviously) is there a simple way to avoid this?
View 1 Replies View RelatedI haven't confirmed if this trick can be achieved on the default or other home launchers, but just now, I was able to overlap widgets together. Could be a bug with LauncherPro. I can actually press in between the top layer of widgets to access the underlying Facebook widget.
View 2 Replies View Relatedfinding an app where I can overlap or layer two different maps? My goal would be to overlap a map I have on file onto a modern map, maybe google maps or a similar program.
View 4 Replies View RelatedIs there any way to query a root view of an activity for all of its child views even before the root view or its children have been inflated? I guess what I'm looking for is whether a view knows ahead of time what children it will have before it gets inflated, and can I get that list in some way. Bizarre I realize, but I think it will help me with some unconventional automation testing I'm working on. I haven't found anything in the API like this.
View 1 Replies View RelatedLet's say I have a LinearLayout, and I want to add a View to it, in my program from the Java code. What method is used for this? I'm not asking how it's done in XML, which I do know, but rather, how can I do something along the lines of (One View).add(Another View) Like one can do in Swing.
View 2 Replies View RelatedI am an android user, using sony xperia z with 4.3. I have problem about the google voice (GV for now) and keyboard, im not the same as everybody with missing GVT or wanting to disable it, i actually like it a lot, especially because it support my language (not english).
using voice input is easy:
1. i press the GV icon
2. i talk
3. text coming out, there will be miss typed/heard sentences
4. you know, if the system doubt your speech and want to correct it, you just tap the word with grey underline,it indicating that it have multiple option
5. then you choose the correct sentences
My step number 4 is a problem, because the correction that pop up to correcting/delete sentences is being blocked by keyboard, that is why i say it also a keyboard problem. so i cannot choose anything from it. and i have this problem since 4.2.2, the first day i upgraded it to 4.3 is okay, but suddenly it happen again. i don't think i will resetting or formatting because i have a lot of app and chat history that i cannot delete.
here is the screenshot and i highlighted the point of this thread with red in case you want to skip reading. [URL] .....
How can I disable landscape mode for some of the views in my Android app?
View 3 Replies View RelatedI have a FrameLayout view which contains one (MapView-like) control and some additional buttons overlaying it. (the layout xml is below).
I want to allow the user to pan/scroll the main view using not only touch but also the Trackball.
The problem is - using the trackball just switches the focus between all the controls on the layout, and I cannot seem to find a way to contain the onTrackballEvent to just the MainView. code...
Let's say I want all the TextView instances in my app to have textColor="#ffffff". Is there a way to set that in one place instead of setting it for each TextView?
View 3 Replies View RelatedI want to open the soft key pad when we click on or focus on edit text.Suppose in my application I have one Edittext view and image view at that time when i click on image view automatically the soft key pad will be closed.when i click on or focus on edittext at that time only Soft keypad will be opened what can i do?
View 2 Replies View RelatedI am developing a small app for Android. I am creating my own view.
I am planning to design the layout to be:
<LinearLayout>
<MyView>
<Button><Button>
</LinearLayout>
But when I run my program, my custom view will cover the whole screen. Is there anyway to avoid this?
I have already tried to add android:layout_width, layout_height to be wrap_content, fill_partent, but no luck.
Is it possible to have an image view overlap a listview? Basically I want to put a vertical line done the center of my list view to make a vertical dividier between the textviews in a listview row that are statically sized horizontally and dynamically sized vertically.
View 5 Replies View RelatedI'm looking for a simple animation example using the android SDK for displaying a little animation between views.
Basically when we have a list view and a detail view - lets have a 'transition' animation between them.
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)
I am working on an Android app that has multiple screens the user will need to navigate between and I am curious what the best practices are when switching between those screens. I am torn between creating a new Activity for each screen and simply changing the view (setContentView(R.layout.whatever)). The screens all share at least some variable values so I'm leaning toward changing views and using class level variables, but I'm worried a single activity could become very large and confusing with logic for multiple screens in a single file. I'd like to keep the code clean and separated, but I also don't want to be passing several variables around between views if that isn't needed.Being new to Android development, I'm hoping some more experienced members of the community could share their thoughts and let me know how best to handle it
View 2 Replies View RelatedI'm new at this, I have not seen any examples on changing Views, what I want to do is when a user presses a button I want to show a map view based on their input on the first view.
View 4 Replies View Relatedim having a problem getting a custom view that i created on the xml layout file. i have a class named DrawingLayout which extends FrameLayout. it is found in the package Drawing
as stated on this page http://developer.android.com/guide/topics/ui/custom-components.html i used the following decleration in xml
<Drawing.DrawingLayout ... />
but whenever i run the program with that decleration i get a runtime exception error on SetContentView( ... )
is there something im not doing well? If you need any more details please tell me because i cant seem to figure this one out.
I 'm beginner in Android ,To start with i was asked to do a simple task ,i need to make blue and red screen appear on the screen alternatively , to achieve this i wrote two layout files 1. main.xml -- for to display red screen 2. sub1.xml -- for to display blue screen
In oncreate() i wrote
for(int i=0;i<20;i++) { setContentView(R.layout.main); try { Thread.sleep(500); }catch(Exception e){} setContentView(R.layout.sub1); }
but this doesn't work ,why ? Please help to understand the concept
I currently have one Scrollview which contains a table layout and one list in my activity. Now my problem is that I wanted to move both of them(Scrollview and list) together and with proper synchronization... So if scrollview is being scrolled then listview should also scroll with the same distance, and vice versa...
View 5 Replies View Relatedwhats the exact differences between 1. LinearLayout lin = LinearLayout.inflate (ctxt, R.layout.bla, null); parent.addView(lin); and 2. LinearLayout.inflate(ctxt, R.layout.bla, lin);? Both doing the same thing, or?
I got sometimes a different behavior.
I am using 5 views in one LinearLayout my app.While going to each view i am removing previous view by calling linearlayout.removeAllView(). But I think this is not removing my previous view becoz when i checked memory usage.My app memory is keep on growing.and Becoz of this i am getting low memory :no more background process error and after sometime app is getting hang and then it is exiting.Please help me to solve this problem.How can we clear memory or how can we remove view.Its very urgent.I am using system.gc() and also i cleared object also but no use... I tried to use different activity for each View but at that time low memory is coming immediately.
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