I have a custom ViewGroup that I wrote, and have been able to use it to lay out child elements in code just fine. However, now I'd like to be able to use it for layout in XML. I would also like to be able to add some custom attributes to the XML file to better control my layout. How do I set up, both in XML and in code, a set of custom attributes? Bonus if it can be used with the built in designer in Eclipse.
View 1 Replies
I am trying to create a ListView and add it to a custom ViewGroup.
Here is my code:
CODE:.................
I've got the following node in my XML layout:
CODE:.................
TagLayout is a class that extends ViewGroup, and basically holds a bunch of buttons with text (a custom object that act as tags, but that's neither here or there).
The problem is that when there are too many buttons, the view no longer scrolls. I can confirm that I am adding tags but I can't see anything.
If I wrap the above within a ScrollView, the layout never renders. I tried adding the attributes android:isScrollContainer and android:scrollbars, but that doesn't change anything. Is there something I'm missing here?
I should also add that TagLayout is overriding the onMeasure() event. I guess I need to implement a scrolling mechanism there...?
I am trying to add a view to a viewgroup but I am getting the following error when I run the application
Error: E/AndroidRuntime( 570): java.lang.IllegalStateException: The specified child already has a parent. You must call removeView() on the child's parent first. Code: public class ExampleApp extends ViewGroup{
private LayoutParams mLAyoutParams; AlbumArtImageView mAlbumArtThumnail;
static final String TAG = "ExampleApp";......................
I am new to Android, and I am trying to understand how to create a custom ViewGroup. I created MyViewGroup as follows: Code...
View 2 Replies View RelatedI want to have a ViewGroup with another View in it. The user should be able to move the other View around the ViewGroup, and fling it away. However, the inner View shouldnt only move, it should also scale and so on (so we dont restrain ourselves to just movements). I don't really know the best way to implement it.
First I though about using a ViewGroup pretty much as it is (i.e. take advantage of the already-written methods). Then I could do the flinging with an Animation. However, when I move the View around with my finger, wouldnt I have to do a requestLayout, since the View changes size when I move it? Or could I just set a transform?
The other alternative would be to override the draw-method and do most of the work myself. For instance, when the user moves his/her finger, I could get a cache of the View and just paint it on the Canvas (with some transform). However, how would I do the flinging then, without an Animation? I could use a Scroller/VelocityTracker, but What would "drive" the repaints? Which is the best way to do this? Also, I won't have just one View, but a couple of them, so I'd like the solution to be effective.
I've extended ViewGroup to achieve something like a FlowLayout.I put my custom ViewGroup into a ScrollView, dynamically add a bunch of content and it doesn't scroll.The content that flows off the screen is not viewable.What am I missing, how can I allow my ViewGroup to be compatible with ScrollView?
View 1 Replies View RelatedI have a custom ViewGroup. The idea is to be able to place controls at absolute positions and then have the ViewGroup scale those controls based on the difference in the screen dimensions with respect to the original design dimensions. I am using the code below. In response to the 'onMeasure' message, I am storing the width and height of the view. Then on the 'onLayout' message I am computing new dimensions for the child controls and adjusting their sizes proportionally. This all works to some degree. However for certain controls (e.g. button controls), the control resizes, but the text inside does not remain centered within the control. I am thinking that there is some other call I need to make to update the child controls after I change their size.
View 3 Replies View RelatedI was attempting to add a custom view in XML, but I kept getting force closes. It works fine when I just find the parent and use addView() so it isn't the code. I'm pretty sure I'm just getting the constructors wrong. Does anyone have any experience with this?
Here's what I've got:
CODE:................
I am working on adding vertical and horizontal scrollbars in a custom drawn View. I have overridden the compute*ScrollOffset, compute*ScrollRange, etc methods and have enabled the scrollbars by called set*ScrollBarEnabled. However, I do not see the scrollbars in my View, even after a call to scrollBy, which according to the documentation calls awakenScrollbars (I assumed awakenScrollbars is not required as the scrollbars do not auto-fade - isScrollbarFadingEnabled returns false).
View 2 Replies View RelatedI am trying to add a custom data field to a contact, its UID is known.
I have not yet understood what exactly I should do. I saw and tried other code , but to no success.
CODE:..........
And "mod" is always 0.
Is there any way to add custom fonts to handcent? I have all the 5 font packs but wanted to add my own.
View 2 Replies View RelatedI 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.
I have a widget that displays a set of information. What I would like to do is to give the user the opportunity to choose the background color/image. I would like to have a popup when the user is selecting the widget to choose the background. So how would I make the popup? And how would I apply the background dynamically?
View 1 Replies View Relatedis there any method to add widget into custom roms.I want to add HTC clock and calendar widget into cyanogen mod 10.1 rom for huawei ascend p1.
View 1 Replies View RelatedI know this exists, but I'm not quite understanding what step two means when it says mount my system partition. Any help would be greatly appreciated.droidsp0t - The Incredible Resource Want Facebook Sync back on your custom ROMs?
View 3 Replies View RelatedI followed all the instructions on the other really long thread. I am having one issue though. I installed SDK and the drivers, that all went perfect. The only issue I am having is with the actual bootanimation.zip. I am thoroughly stuck. After I download a bootanimation.zip it shows up in winrar with 4 files (loading, eye, android, and the desc.txt) I know it has to go in tools. I am just not sure how? Do I add each folder or is there a way to add them all? I also know the name has to be bootanimation.zip. I tried a few different ways and pushed it to my Inc. But I cant get it to boot with the animation.
View 29 Replies View RelatedI've been getting annoyed at being unable to assign my ringtones to my gmail synced contacts. Something that was a non issue on my old faithful G1.Samsung, it seems, has seen fit to screw with the contact management making it necessary to have a contact in the phone memory proper to assign a custom ringtone.I have found a simple solution. Download Ringo Lite from the market place. It will allow you to assign ringtones to any contact on the phone in a really simple manner and the app is free. It has other features like assigning rings to sms messages and stuff but I don't care about that or need that. But for setting ringtones it works just dandy.
View 9 Replies View RelatedHow to use viewGroup in android
View 3 Replies View RelatedCan you please tell me how can I setHeight for a ViewGroup? I see there is a layout(l,t,r,b);
But that is different form setHeight(), since I don't know where should be the top/bottom of the viewGroup. I need to set the height of the ViewGroup and return that to ListAdapter.
I am able to get a GLSurfaceView to have a transparent background with:
CODE:............
when I set the Activity's window background to transparent and the GLSurfaceView is the contentView of the Activity.
But, let's say my GLSurfaceview is parented by a ViewGroup and I want GLSurfaceView bg to be transparent to see the Viewgroup's background - I am not able to do so with the code above. Is this a limitation or am I missing something?
How can one use a GLSurfaceView similar to a ViewGroup, in the sense of adding Views(CustomViews) over it? Is there any means to make the GLSurfaceView be the canvas on which the view draws its contents?
View 5 Replies View RelatedI have a ListActivity whose layout looks like. code...
However, my empty list view consist only of the ImageView listed first inside the nested LinearLayout.
This seems like a reasonable thing to do but I don't completely understand Android's layout rules yet.
I try to make the Content view of SlidingDrawer is a ViewGroup, for example , in the Launcher example it can have two GridView in the same SlidingDrawer my sample is to make android:content = "@id/layout" ,which is a LinearLayout but i found only the first child in the layout will be shown so i would like to ask is there any constrain to make SlidingDrawer can not have multiple views in its content?
View 3 Replies View RelatedI am looking for Wrappable ViewGroup just like what TextView do. I need this for layout. This should be something like LinearLayout but wrappable to multiple lines. Or do I need something custom?
View 1 Replies View RelatedI have a ViewGroup (LinearLayout) which contains a couple of TextViews and one ImageView. I want to make this entire group clickable. However, clicks on the TextViews or ImageViews or on the area enclosed by the ViewGroup above doesn't result in the handler being called. Any suggestions on how I can make a whole ViewGroup clickable?
View 2 Replies View RelatedI have the following structure defined in an xml layout file.
<RelativeLayout android:id="@+id/mainLayout"
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content" android:layout_height="wrap_content">
<FrameLayout android:id="@+id/frame" android:layout_centerInParent="true" android:layout_width="wrap_content" android:layout_height="wrap_content" ></FrameLayout>
<Button android:id="@+id/button" android:layout_below="@id/frame" android:layout_width="wrap_content" android:layout_height="wrap_content" />
</RelativeLayout>
The FrameLayout is positioned correctly in the center of its parent. But the Button isn't getting positioned under it. Instead it's displaying in the top left corner. Am I doing something incorrectly or is this a bug with RelativeLayout?
I have small ViewGroup somewhere in the middle of the screen. this ViewGroup contains some Views that i'd like to animate.
now this ViewGroup in dispatchDraw() method manages any child Views animations, clipping them to ViewGroup's bounds.
my question is whether it is possible not to clip them to ViewGroup's bounds?
I want to share the same view.mTag value of a viewgroup to all the childs under that viewgroup.
Like all childs should call the getTag() of viewgroup to get the tag .How can i do that ?
In my custom ViewGroup, I am returning false after handling the MotionEvent.ACTION_DOWN event.
According to the javadoc: For as long as you return false from this function, each following event (up to and including the final up) will be delivered first here and then to the target's onTouchEvent().
However, I notice that all subsequent events ( MotionEvent.ACTION_MOVE and MotionEvent.ACTION_UP) are only delivered to my #onTouchEvent method. In #onTouchEvent , I always return true.
What could possibly be my bug? I am running on Android 1.5r2 SDK.