Android :: Applying Successive Animations To ImageView In Android
Apr 1, 2010
I would like to apply successive animations (say ScaleAnimation) to an ImageView showing a resource image. The animation is triggered by a button. For example, I would like to incrementally enlarge an image upon each button click.
I've set fillAfter="true" on the animation. However, all the animations start from the original state of the ImageView. It seems as if the ImageView resets its state and the animation is always the same, instead of starting from the final state of the previous animation.
CODE:.......................
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Apr 10, 2009
Has anyone other than me needed to make consecutive queries to a sqlitedatabase? My application works sometimes but other times (about 98% of the time), the app will crash. What I'm doing is using the sqlitedatabase.query(..) to return a cursor which I parse, I make multiple successive queries to the database and parse different recordsets/cursors.
My question would be does a sqlitedatabase need to recover or clean up after a .query is issued?
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Jun 15, 2010
I have a listlayout with items in it that looks like this:
There is first an ImageView (the light) and then two textViews. All of this inside a TableLayout. (source here: http://code.google.com/p/switchctrl/source/browse/trunk/android/res/layout/device_switch.xml)
I want to have a rotating animation of a loading indicator Ontop of this light when this particular device (light) performs an action or an action is performed on it.
How do I put an animation ontop of this light imageview?
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Jan 10, 2010
I am trying to apply common style to different textview that can be either defined in a layout xml file or programmatically and that does not seem to work for some attributes: My style in styles.xml is:
<style name="ListName"> <item name="android:colorForeground">#f0f</item> <item name="android:padding">4sp</item> <item name="android:textSize">30sp</item> <item name="android:textColor">#CCC</item> <item name="android:gravity">left</item> <item name="android:typeface">serif</item> <item name="android:textStyle">bold</item> <item name="android:colorBackground">#999</item> </style>
In my layout xml i have <TextView style="@style/ListName" ...></ TextView> and in my activity java class i have: TextView nametv = new TextView(this,null,R.style.ListName); However some parameters does not seem to work very well: - textStyle to bolditalic does not seems to be recognized - textColor/colorForeground/colorBackground does not work at all. I have been through the documentation, but could not find precise reference documentation for that attributes, nor sample for the color setting.
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Oct 23, 2010
i'm trying to define a theme for an appwidget, and have it applied at the application level. i have a theme like, <style name="theme.dark"> <item name="android"background">#000000</item> </style> in my manifest, i set android:theme="@style/theme.dark". however, when i run the appwidget, it does not pick up the items from the style. i tried setting style="@style/theme.dark" on an individual element in my view layout, and that does work ... but that's not what i want. i don't want to call out a specific style="..." for each element in my view. this page...................
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Apr 8, 2010
i am creating a picasa web album client for my major project. i've almost finished with the coding.its just that i find my UI very dull.its very boring. looks like a command line User Interface. obviously i want to change that and want a good attractive gui for my project. can anybody tell me how to create a good GUI which is eye catching and attractive? please give me the code because it is very difficult to interpret the custom theme option at android.com can't comprehend how to use it. it'll be better if anyone can post a tutorial. there are some questions that i want to ask. can i use flash? is there anyway to use css templates for this purpose? i dun want my gui to be black and white and dull
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Apr 11, 2010
I have a problem in the Preferences Activity, in the main preferences the theme shows ok, but if I get to a sub preference, the theme gets messy, it is not white as it should, it is all dark, and the font is black so you can't see much, and when I start clicking on any items they will get sometimes white as they should but revert to black soon after. This is only happens on 2.1, in both the real device and emulator. Tested on the emulator running 1.6 and it was working correctly.
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Dec 11, 2009
One approach I've looked at is to use the preview callback, asking for a JPEG buffer. Unfortunately, the HTC phones I've tried this on all call back at several second intervals and give me an NV12 buffer regardless of the pixel format you specify. (Anyone know the behaviour on a droid?) I can code my way around the NV12 hassle but I can't exactly do much when the callbacks are so seldom; I want around 10 fps.
The approach I was considering was making an opencore codec for mjpeg. Which leads me to two questions before I start:
1) can third-parties make and install opencore codecs, or is this strictly locked down? Is it to just drop an .so in the right folder, or?
2) do the HTC phones use the default encoders? (i.e. will using the same way the default opencore reference codecs get their pixel buffers work on the phone?)
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Mar 7, 2010
I want to apply theme over setting application wide. So I implemented below code but there was no effect.
1. AndroidMenifest.xml
<application android:label="@string/settings_label" android:icon="@drawable/ic_launcher_settings" android:theme="@android:style/Widget.ListView" android:taskAffinity=""> -> added Widget.ListView style provided in android system and I changed style.xml file like below
2. FrameWork/base/core/res/res/values/styles.xml
before change : <item name="android:listSelector">@android:drawable/ list_selector_background</item>
After change: <style name="Widget.ListView" parent="Widget.AbsListView"> <item.................................
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May 29, 2010
Is their any way to apply a style resource to customize the Item Border in the Gallery Class with Android?
I'm trying to hide or change the color of the default Grey border but by the looks of things this isn't possible?
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Feb 17, 2012
I'm working on a puzzle game for Android 2.2, what I want to do is a simple fade-in fade-out of the whole game screen, during level changing. I tried with an AlphaAnimation from 1.0f to 0.0f and vice-versa, and it works perfectly if I start it from a View, but if I try to start it from the SurfaceView which I used to write my game engine nothing happens.
I put a completely black ImageView on top of my surfaceview, and applied the animation to this imageView. This is my layout
Code:
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="<not allowed to post external links...>"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
[Code] ......
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Jan 4, 2010
So I am pretty computer savvy but just getting into the phone scene. Wondering what site is best for the hacker side talk of phones?
Androidcommunity vs Androidforums vs XDA dev forums?
Which is better for instructions on rootings and applying custom ROMs?
Which is better for finding ROMs?
Which has more users?
Which has more experts?
Anyone familiar with the other site or one I may not know about can fill me in a bit? I seem to like this site the most but if there is more information elsewhere, I may need to pool my resources. I would prefer for android forums to be my 1 stop shop n go.
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Mar 22, 2010
I am trying to find solution where I can apply round corners to an image. 1) I have tried to set android:background and in drawable.
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Feb 7, 2009
I'm trying to make an image darker, but the image has some pixels transparent. I want to keep those pixels intact. I tried DARKEN and couple other filters, but they seem to alter transparent pixels as well.
Do you know if there is a way to keep transparent pixels intact while applying a color filter?
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Oct 1, 2009
What are advantage and disadvantage of applying android:launchMode="singleInstance" in the android.manifest file. Will it hamper the services in the application? And how is it related to the performance of the application?
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Apr 25, 2010
I want develop a HTML, CSS , Javascript application that has pages that flip animate the same as on the iphone. I have tried JQTouch but the animations do not work. how to flip a page in the Android 2.1 browser?
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Apr 5, 2010
I am trying to create a menu that slides in when it is drawn. I created an animation in res/anim called map_toolbar_in.xml:
CODE:..............
Then I have a linearLayout which I attempt to use it in:
CODE:...............
When I run the program I get a bunch of errors, starting with:
CODE:...................
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Jun 26, 2009
I defined some complex AnimationSet in xml and would like to run it on several Views (View.startAnimation()). i cannot just create one instance of this AnimationSet (using AnimationUtils.loadAnimation()) and use it as parameter of View.startAnimation(), so i have to create several instances of this AnimationSet. since loading it from xml is rather slow operation, is there a way to load it once and then clone it when needed?
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Feb 28, 2009
How to use Popupwindow's animation? i tried setAnimationStyle() but couldn't get it working... i assume i need to pass style id (R.style.something) defining windowEnterAnimation & windowExitAnimation but as i said it didn't work
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Mar 9, 2010
I've a succession of 2 Intent: Intent intent = new Intent(); intent.setClass(EntryPoint.this, MainClass.class); startActivity(intent);
And I'd like an animation (which is present in res/anim) occurs during the transition between these 2 Intents...
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Jul 20, 2010
Actually i m little bit confused in animation set? i have more than two or three animations how can i put them in animation set? and one more thing this is very important..that my image is moving from one place to another through translate animation. but it is not showing the motion and looking like that the image was invisible there and after clicking its visible.. how can i show motion that image is moving from one place to another in translate animation.
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Nov 14, 2010
I need to run six animations simultaneously (each animation simulates a roll of dice, each dice is a custom text view) and at the end of those animations, I need to get back the number of each roll. As each animation changes the number of each dice five times (to simulate the roll), I want to wait that each animation has ended to calculate the sum of each roll. I tried to regroup in one the six animations (so that with an animation listener, I would have been able to wait the end of the animation) but I didn't manage it.
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Jun 16, 2009
I've been looking around in the framework source and I can get my head around some things. For instance, in the ScrollView, the animated scrolling is done by using computeScroll(). To make the screen redraw (and thus call computeScroll() again), postInvalidate() is used. Why is that one used, instead of a regular invalidate-call?
Secondly, I wonder some things about the Animation framework. I know how a ViewGroup is responsible for animating the children (modifying the Canvas and so on), but what drives the animation, i.e. what makes the screen redraw over and over again? In the case of the ScrollView, it's the call to postInvalidate() made from computeScroll(), but what is it in the case of an Animation?
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Mar 13, 2010
I'm developing chess game for Android (androidchess.appspot.com). If I want to add animations, should I use custom View extending Canvas (I do this now), or custom View extending SurfaceView?
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Mar 10, 2009
I want to save an animation that I wrote in android in gif format. I know how to take screenshot but is there any possibility to capture an anmation?
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Jul 19, 2010
I am at a stage where I can understand and write a decent Android application. At this stage, I am still not comfortable with SurfaceHolder, Canvas, View invalidate() etc. I don't have a CS background so I must've missed these from a CS Graphics course or something.
Starting directly with Android seemed like a bad idea because there are not many examples out there. And sometimes I am getting things done, but I don't understand what the heck is going on. For instance, there are a few dangling observations. Calling invalidate() from within a view calls its onDraw method but from outside it doesn't do anything and I don't know why this is happening. I know SurfaceHolder can be a powerful thing but I don't know how to use it.
For an absolute beginner to be able to handle this stuff, what are the resources one should follow? Is it animation basics or screen rendering or something else altogether? I mean, it cannot be the case that Android guys invented these concepts right? They must be similar to something out there which has some tutorials already. My end goal is to put myself in a position where I can write some simple custom views that can animate themselves and use some basic physics to react to touch events.
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Nov 15, 2010
So i have a code developed where when some button from the app is pressed it should get displayed in the Textview with some Animation(to add some fun). Is it possible to have text animations in Textview or should i use Canvas or SurfaceView for drawing this aplhabets with animation?
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Aug 20, 2010
Do I need to wipe everything? DO I apply from recovery just like a ROM.
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Mar 1, 2009
i tried to use my popupWindow with some enter/exit animations - it has setAnimationStyle() method for that purpose. after some time i realized i cannot use my own custom animation styles which is ok but a bit limiting. so i tried system ones: R.style.Animation_Toast works ok, but R.style.Animation_Dialog doesn't. looking at xml definition files i found that Toast animation uses simple alpha animation and Dialog animation is a set of alpha combined wit scale animation. is it a problem for WindowManager to deal with complex animations?
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Sep 15, 2009
I am wondering how to use custom in/out animations for a ViewAnimator, such as the 3d flip animation in the ApiDemos. Details below in case you have the time to read.
The following methods:
animator.setInAnimation(AnimationUtils.loadAnimation(this, R.anim.fade_in));
animator.setInAnimation(this, R.anim.fade_in);
Require that I use the animation as a XML resource but the documentation says the XML only takes "<alpha>, <scale>, <translate>, <rotate>, interpolator element, or <set>" as the root element. So it seems to indicate that you cannot use a custom animation as an XML resource?
I also tried:
animator.setInAnimation(new AlphaAnimation(0.0f, 1.0f));
Which doesn't seem to work (no animation happens just plain cut).
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