Android : Change Absolute Position Of A View Programmatically?
Aug 9, 2010
If you use an AbsoluteLayout (I know that it is deprecated, but it was the only way to solve my problem ) you can give the childViews the tag "android:layout_x" and "android:layout_y" to set their absolute position within the AbsoluteLayout.
However I dont want to set these informationen in the xml, because I only know them at runtime. So how can I set these parameters at runtime programmatically? I dont see any method on the View like view.setLayoutX(int x) or something.
Here is my XML, which works fine, when I set the layout_x and layout_y values. code...
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Jul 20, 2010
Is it possible to set the absolute position of a view in android? (I know that there is an AbsoluteLayout, but it's deprecated...)
Lets say I have a screen 240x320px, and I want to put an ImageView which is 20x20px with its center at the position (100,100).
What do I have to do?
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Nov 4, 2009
View.getLeft() and View.getTop() give the position of the view relative to the parent.
Is there a way to get the absolute screen position of that view?
Either a way to translate those coordinates into screen coordinates to make a call to get the position in screen coordinates.
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Nov 21, 2010
I have an image setup inside an absolute panel.I am trying to set it's position via code.But I do not see any applicable method/property to set its position.
Here is my layout.
<?xml version="1.0" encoding="utf-8"?>
<AbsoluteLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
xmlns:android="http://schemas.android.com/apk/res/android"
>
<ImageView android:layout_width="wrap_content" android:layout_height="wrap_content" android:id="@+id/marker" android:src="@drawable/marker" android:layout_y="106dp" android:layout_x="290dp"></ImageView>
</AbsoluteLayout>
Here is my code to set its position...
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Feb 8, 2010
I'm trying to get the absolute screen pixel coordinates of the top left corner of a view. However, all methods I can find such as getLeft() and getRight() don't work as they all seem to be relative to the parent of the view, thus giving me 0. What is the proper way to do this?
If it helps, this is for a 'put the picture back in order' game. I want the user to be able to draw a box to select multiple pieces. My assumption is that the easiest way to do that is to getRawX() and getRawY() from the MotionEvent and then compare those values against the top left corner of the layout holding the pieces. Knowing the size of the pieces, I can then determine how many pieces have been selected. I realise I can use getX() and getY() on the MotionEvent, but as that returns a relative position that makes determining which pieces were selected more difficult. (Not impossible, I know, but it seems unnecessarily complicated).
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Oct 7, 2010
I have a form with several Views on it, the last one is a Spinner that is bound to an adapter to get it's data from a Web Server via a POST request, at the end I append an additional entry for "Other...". If this option is selected on the spinner, a new EditText View at the bottom where the user enters a custom value, I've managed to get the EditText View to show on the screen, but it's positioned at the very top, over my other Views and I can't seem to find the way to make it appear at the bottom, below the Spinner as I want it to, here is the code I have so far:
EditText suggestCarrierField = new EditText(getBaseContext());
suggestCarrierField.setLayoutParams(new ViewGroup.LayoutParams(
ViewGroup.LayoutParams.FILL_PARENT,
ViewGroup.LayoutParams.WRAP_CONTENT));
suggestCarrierField.setHint("Suggest your carrier");
((AbsoluteLayout) findViewById(R.id.createAccountView)).addView(suggestCarrierField);
((AbsoluteLayout) findViewById(R.id.createAccountView)).invalidate();
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May 28, 2010
Does smomeone know how I set the scrollbar position in an EditView programmatically.
I'm appending the text during special events but I want the EditView to scroll down to the latest text added so it'll be visible. But default the scrollbar does not move automatically when appending text.
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May 18, 2010
I have a HorizontalScrollView with a series of CompoundButtons. I want to find the (x,y) for a given child view. I have tried using:
getLocationOnScreen()
getLocalVisibleRect()
getChildVisibleRect()
like this:
View tmpView = this.findViewById(viewId);
Rect hitRect = new Rect();
tmpView.getLocalVisibleRect(hitRect);
the hitRect is always 0,0 - 0,0.
I need the x,y mainly to scroll to a particular child view. Any help is greatly appreciated.
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Oct 8, 2010
I have an XML layout with some custom tabs, a heading, and a ProgressBar(main.xml). I wish to add another XML layout(home.xml) to the main.xml layout, as i wish to keep main.xml re-usable for other activity's layouts and simply add things to it as necessary.The problem: after inflating R.layout.home into rootLayout, it seems as though the ProgressBar contained in rootLayout is hidden underneath the content of home.xml.Is there a way to tell certain views(via XML) to float above other views when the layout is constructed in this way?if not, am i forced to use methods such as progressBar.bringToFront() to raise targeted views to the top?what alternatives do i have in z-ordering views when some layouts are constructed using inflation?
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May 26, 2010
I have a custom view that works fine and I'm trying to get gestures into it. The most common technique I see is to add XML, such as this (from Android docs.Can someone point out my errors, suggest a better way that will allow me to get gesture callbacks and/or suggest diagnostic approaches?
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Jan 8, 2010
Can anyone give me a tip for how to get the position of a view what is a child of an AbsoluteLayout? I want to do this for drag and drop the selected view.
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Sep 1, 2010
Can I get a View's x/y position (relative to the root layout of my Activity) in Android?
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Feb 3, 2010
I'm trying to do something which seems simple. I want to have a map view, with a menu that slides up from the bottom of the screen where settings (for overlay) can be adjusted. However when I use a TranslateAnimation to affect the y position of the LinearLayout (which holds the menu), the buttons in the LinearLayout move, but there "hit area" stays in the same position as they were before the animation.
CODE:.........
I've also looked into tweening the view's marginTop value, but haven't even been able to determine how that would be done.
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Jul 27, 2010
I currently have a view in my Android app and the view is playing a frame animation. I want to animate the view to increase its size to 150%. When I apply a scale animation to it, and the scale animation is completed, I want the view to stay at that new size for the rest of the activities life cycle. Unfortunately right now when the scale up animation is complete, the view snaps back to the original size. How can I get it to keep the new animated tranformation? I'm using myView.startAnimation(AnimationUtils.loadAnimation(mContext,R.anim.scaleUp150));
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Nov 20, 2010
I try t get the position of the item who contains my button.How Can I pass the position variable present in the getView method to my onClick Method?I will have several button In my View (Item view)
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Feb 7, 2010
I have a GridView, using a custom adapter (myAdapter extends BaseAdapter), where each item in the grid holds an ImageButton. getView() is working fine.
However, from elsewhere in my code, how can I update the image (setImageResource) for one particular item in the grid based on its position in the GridView?
So far, I've added this to my adapter class:
CODE:........
And would like to write something like this: mygridview.getItemIdAtPosition(20).changeImage(); (doesn't compile).
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Aug 26, 2010
I have a horizontal scrollview with text fields,here i need to get the first and last position of textview when i scrolled it,how can i get the position of textview when i scrolled.and also need to know how to set color for text when i clicked the particular text from this. sample code....
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Aug 19, 2010
My friend and i develop a Android program.
Now we got to the question if it's possible to get the actual position of an ListElement.
Example: You drag the list up and down, and now you want to konw which element is on the center of the screen?
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Apr 5, 2010
I have a custom component which consists of 2 text view and 4 toggle buttons. I want to draw this view at some specific position on the screen. How is that possible?
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Aug 6, 2010
I have a button in an AbsoluteLayout and I want to change the X and Y position on screen programmatically.
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Oct 6, 2010
Where can I change my icon position on a tab to be in the center of the tab. Currently, my icon is located on top of the tab by default...
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Jul 12, 2010
Sample code there is a method getitem(position) in the class of image adapter which returns null for the sample example. However, this method is important and is supposed to return the corresponding data item of the image adapter. For example the image adapter could generate a series of customized image views by magically calling the getview method. How could we implement the getitem(position) method under this case to help us gain access to these customized image views?
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Jun 19, 2009
Could we with the 1.5 sdk change the position of the zoomcontrol in a mapView as The setBuidInZoomControls (different of getControl()method is not a child of a view?
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Mar 26, 2010
I'm working on adding rabic support to android. when dealing with layouts, I have to change the position of scrollbars from right to left, the same thing for spinners and checkboxes. where to modify in the android source code.
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Oct 7, 2010
I'm writing a little 3D engine for android to better learn the platform and opengl. I hope to eventually use it as a base for little 3D games.
I'm trying to implement lighting right now, and generally following the NeHe opengl android port tutorials. I have a simple spinning cube and 1 light that should not change position. Upon rendering my scene on a device the light appears to "dim" and re-lighten as cube rotates.
This is a swf video of the behavior:
http://drop.io/obzfq4g
The code for my "engine" is located here: [url]
The relevant bits are:
[url]
This is where I'm initializing opengl and setting up my scene. and [url]this is the code for actually rotating / drawing the cube mesh.
I wish I could formulate a better question; but I'm very stuck/confused and can't even think of an intelligent question to ask besides "does anyone know what might cause the kind of behavior I'm seeing?"
Also the slowness / choppyness of the animation in the video is a result of the screencap software. It's smooth throughout the whole rotation on the emu.
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Jun 17, 2010
I'm trying to make a ScrollView with a list of numbers in it that the user can select from. After the user touches and scrolls, after the finger is lifted I want the scroll to "snap" to the item in the middle of the ScrollView and give me the output. My ScrollView contains a vertical linear layout with TextView objects in it. The ScrollView's vertical size is about 60sp.
I think this would involve the ScrollView.onTouch with a ACTION_UP, but I don't know how to use it. Also, is there a way to get an item's index or value based on a position in the list?
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Aug 2, 2010
I want my arrows to continuously move left and right with a delay of certain milliseconds dynamically. Any clue?
Here's my code...
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Jul 17, 2010
Is there a way i can create a view and add some textviews into it ? programmatically ? any sample code?
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Jun 3, 2010
I am coding a custom view, extended from RelativeLayout, and I want to resize it programmatically, How can I do?
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Jun 1, 2010
Other questions say that the style cannot be set programmatically, but a View can be initialised with a style such as when it is loaded from XML.How can I initialise a View with a particular style programmaticly (not in XML)? I tried using View(Context context, AttributeSet attrs, int defStyle), but I don't know what to parse in for the second argument. Passing in null results in the View not being displayed
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