Android :: TranslateAnimation Doesn't Animate Straight (X-only) But Also In Y-direction (diagonal) / Fix It?

Oct 26, 2010

I have a TranslateAnimation that shall animate a LinearLayout (isScrollContainer) to the left and to the right along the x-axis. The animation to the left works and the animation is straight - means that the view is animated horizontally only.

But the animation left to right doesn't work: instead of just moving the view from left to right along the x-axis, the view gets animated into the screen from diagonal lower-right corner. But for the Y parameters I pass fixed identical values.

Here is a flv movie that shows the animation and issue I described:

Code as follows...

Android :: TranslateAnimation doesn't animate straight (X-only) but also in Y-direction (diagonal) / fix it?

Android :: Button Not Working After TranslateAnimation Ends

Sep 29, 2010

Im tring to simulate a slideup animation.The idea is to slideup and slidedown the tablelayout with the id searchForm when pressing the button so that i can use the extra space for a list. I managed to slideup the searchForm and the button and the list seems to be visible but after this i cant click the button, here's the code responsible for the slideup animatio:


Here's the xml that has the view elements:


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TranslateAnimation Does Not Slide Proceeding View

Mar 28, 2014

I have 2 tables, Table-A and Table-B. The Table-B is below Table-A and I am using RelativeLayout.

I set the animation for the Table-A to slide up as follows.

TranslateAnimation slide = new TranslateAnimation(0, 0, 0, -(Table-A Height));
slide.setAnimationListener(new Animation.AnimationListener() {


The Table-A slides perfectly, but Table-B does not move until the Table-A animation is over and Table-B jumps to the top once the animation is completed. This does not look good as user sees Table-B jumping to the top.

Removing setAnimationListener and adding Table-A.setVisibility(View.GONE); at the bottom will also produce the same result.

Am I doing something wrong?

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Android :: How To Animate Views

Jul 26, 2010

I'm working on a game that in some ways is similar to Tetris (imagine a 2D array of colored squares that sometimes move around)

I am trying to animate the individual squares so they will smoothly slide down from coordinate to the next. Since I wanted to use Android's built-in tweening feature, the animation has to apply to the whole View (rather than parts of it). This doesn't work well for me because I only want some of the colored squares to slide down, and the rest of them to stay still.

The (theoretical) solution I came up with to resolve this is to make 2 Views, layered directly on top of each other. The top view is for animating squares when they need to move, and the bottom layer is for the static squares. The animation-layer is transparent until I am ready to animate something. I then simply turn on the colored square in the animation-layer, tween it to the new location, and turn it back off when done. In the same time span, the static-layer just turns squares on and off at the right time to make the whole thing look seamless to the end user.

The proposed solution is just a theory, since I haven't been able to make it work correctly yet. Since I have been having trouble, I was wondering if this is even the best way to solve the problem? Perhaps there is a more elegant solution that I am over looking?

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Android :: Animate In And Out Of Imageviews?

Sep 30, 2010

I'm trying to figure out how to animate in and out of Imageviews.

Basically I have a LinearLayout with an ImageView and a Button at the bottom. Everytime the button is pressed, onClick() is invoked and I do


I simply change the image displayed on the ImageView by selecting different photos in the @drawable.
Now I want to put an animation when these imageviews are changed (when button pressed). I used

inAnimation = AnimationUtils.makeInAnimation(this,true);and in onClick() I do image.setImageResource(imageArray[imageCounter]); image.startAnimation(inAnimation);

This works fine too. The new image comes to the screen animated. But how can put an out animation too? It seems only one animation can be assigned with startAnimation().

What is the best way to animate an imageview OUT and then animate another imageview IN? Because I want to change the animation depending on the button pressed, I cannot use ViewFlipper. For example, if I press button_Anim1, current image will slideout from right and the new image will fade in. But if I press button_Anim2, current image will slideout from top and the new image will slidein from left. And so on.

I see that I cannot use two different image.startAnimation() in the onClick() method to make the current image View.INVISIBLE and then make the new image View.VISIBLE.

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Android :: Trying To Animate A ViewStub

Oct 23, 2009

I am trying to animate a ViewStub -- without success.

My code:


No animation is played, the ViewStub simply appears. How come?

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Android :: Animate Rows Within ListView

Sep 29, 2010

I saw the Android app "Mobisle Notes Free" implement a really cool ListView, where a row gets moved to the bottom if its checkbox is checked. It's not just a simple refresh, but an actual animation where you see the row travel to the bottom. Does anyone know how to implement this?

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Android :: Animate A Color Animation

Dec 31, 2009

How can I animate a color change?

Like with AlphaAnimation there is fromAlpha and toAlpha, I need something like ColorAnimation that provides fromColor and toColor. Is there anything like that already?

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Android :: Animate HTC Battery Widget?

Feb 3, 2010

I installed the HTC Battery widget (downloaded from the Android Market) and notice that while the battery is being charged, there is a visually effective animation that continuously runs.

I always though such animations in widgets were not supported in the SDK.

How is this technically possible?

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Android : Ways To Animate A List?

Mar 27, 2009

AK Notepad does this nice little thing where, on displaying the file list, it "unravels" rapidly down the screen. Are they hacking that incredibly manually, or are there simple OS calls to make lists display in various ways?

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Android :: Animate 2D Game Smooth Without OpenGL?

Sep 14, 2010

im currently playing around with a Game that architecture is basically like the example 2d Games like JetBoy / LunarLander and so on. But as things now running (and animating continuously) they have kind of "hiccups" when the GC is running. I have done all i can to allocate as much Objects in front. There is nearly nothing that is created "new" besindes some Strings that are used to set the Score and so on. (TextView doesn't take int's =( - So do you have similar Problems that the GC is "lagging" your 2s game ? any solutions ?

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Android :: Animate A Single View In Sequence

Aug 18, 2010

I would like to animate a view I have to appear like it was sliding off the screen to the left, and then sliding back to the screen from the right. I've set the duration of the first and the start Off set of the second as 1000, so the second should start right after the first ends. Instead I get their order reversed and I see my view sliding from right into the screen, and then sliding off the screen to the left. Reversing the animations order didn't do anything. Anyone got a clue why is this happening, and how can I do what I want?

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Android :: How To Animate Activity Entrance And Exit?

Jan 11, 2010

How to animate activity entrance and exit? And activity relaunch after onNewIntent()?I used android:theme in the manifest file but it didn't work for me.

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Android :: Animate Single Image In Gallery

Dec 10, 2009

I added and displayed set of images in my gallery. I made like at a time use can view three images. Now I want to do different Animation for these images?

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Android :: Animate New Elements In A GridView Being Added?

May 25, 2010

My app polls a server every 15 seconds to see if there are any new items to display, then downloads the new items and disposes of the old items so that there are always exactly 100 items in the GridView. Unfortunately, this process can be confusing to the user if they see a page of images change without knowing where the items went.

My idea is that there could be some kind of animation (such as the new items being inserted at the top and pushing the older ones down the list) to show what action is happening. Unfortunately, I have no clue how to make this animation happen.

Is my idea even possible? How would I accomplish this?

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Android :: Animation - Animate An Imageview Across Several Layouts

May 12, 2009

I want to be able to make an imageview move from point a to b while going through several different views. For example, say I have a table layout, is there any way an imageview can move from the topleft cell to the bottomright cell? Everything I tried seems to indicate that an imageview will only be shown in it's own container - none of it's parents, siblings or children will show it. Is that correct? is there any way around it? like creating an overlay or a transparent canvas on top of the entire thing so I can do it?

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Android :: How To Animate A Drawable Inside An App Widget?

Oct 18, 2009

This question was raised a few months ago here: which suggests that animations cannot be done within an App Widget.

However, I'm sure I've seen some App Widgets animating... I have an App Widget which contains an ImageView. When the user clicks on this Widget I would like the ImageView to continuously rotate until a certain task (think synchronization) completes. This can take anywhere from a few seconds to a few minutes.

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Android :: Animate Text Over Another View In Droid?

Apr 20, 2009

I'm trying to animate some text 'zooming out' on top of another view. My code looks something like code...

with animText being invoked in the onDraw() routine of the BoardView. What I'm seeing, however, is the board zooming out, not the text, despite the above calls to setAnimation().

I've looked in the main android docs and at one other example.

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Android Animate View Outside Fragment Is Getting Clipped?

Feb 28, 2014

I have a view in a fragment. This fragment is within a FrameLayout. I want to animate this view moving outside the fragment borders. However, the view always get clipped when crossing the border. I have tried by setting "android:clipChildren='false'" and android:clipToPadding="false" to everything, but I can't get it to work.

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Android :: Animate View And Stay In New Position / Size?

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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Android :: Programmatically Animate Between Images In Gallery Widget

Apr 28, 2010

I'd like to programmatically move between images in the Gallery widget, with animation.

I can change the currently displaying image using the setSelection(int position) method, however that does not animate. Then there's setSelection(int position, bool animate) but the extra boolean on the end there doesn't appear to do anything.

In the source of Gallery it appears that it can handle DPAD key-presses, so a work-around I thought of was to fake the key-presses. Eg.

dispatchKeyEvent(new KeyEvent(KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DPAD_LEFT))

However I can't get this working for some reason. Anyone tried this?

I notice three of the widget's methods I'd love to use moveNext(), movePrevious() and scrollToChild() are all private and unusable.

Does anyone know how I might be able to do this?

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Android :: Animate Scroll Of Mapview (by Pixels, Not Lat Long)?

Nov 17, 2010

I need to scroll a MapView programatically to make sure something is in view. I know how many pixels it needs to scroll in each direction. I see methods (in MapController) to animate it to a particular GeoPoint, and to scroll it by pixels without animation. But nothing to do it by pixels, with an animation.

What is an easy way to do this?

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Android :: Make Transition From Portrait To Landscape Animate Smoothly?

Sep 7, 2010

I have an app that has a portrait layout. When I rotate my phone into landscape, it loads another layout that is strictly landscape (it is displaying an ImageView). How can I make the transition from portrait to landscape animate smoothly?

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Android :: Animate Change Of View Background Color In Droid?

Apr 10, 2010

How do you animate the change of background color of a view in Android?

For example:

I have a view with a red background color. The background color of the view changes to blue. How can I do a smooth transition between colors?

If this can't be done with views, an alternative will be welcome.

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Android : How I Can Get Direction In Htc Desire

Nov 28, 2010

Every one can any body explain to me how I can get direction in Htc desire ,cause when I ask about any direction or end point always the answer is no route.

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Android :: Accelerometer Direction Of Shake?

Apr 8, 2010

I've been playing with the data given by the accelerometer,trying to work out how I can gauge a shake from front to back or side to side. This all seems straightforward enough.But I'd love to know the direction of the shake. So, if the user is shaking backwards and forwards, I want to know if the device is moving away from the user, or back towards him/her. I can't find any way of telling this.

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Android :: Direction Information In MapView

Aug 16, 2010

I want to show the direction information in my app.Direction from one address to the another using Google maps and also wanted to set overlays at the starting address and the destination address.Is there any classes in android too do that.

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Android :: Draw The Direction Arrow On The Map

Sep 13, 2010

I am creating a class extending mylocationoverlay. then, i override the draw method. is this the correct method? because after i rewrote the draw method, the map tile cannot render.

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Android :: Scrolling The Wrong Direction?

Dec 7, 2009

Scrolling on an Android phone makes sense because it's like you're physically sliding the page upwards. However, now that I'm used to doing that, when I get on my laptop and start to scroll with my touchpad, sometimes I find myself scrolling the wrong direction. On a touchpad you drag downwards to go down on the page, or to slide the page upwards. So it's backwards from the motion you would make on your phone.

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Android :: Calculating Direction From Point A To B

Sep 17, 2010

I'm trying to create a compass for my application BUT the difference is that, instead of having a line always pointing to north, I want this line to point for a specific point. I've been trying dozens of algorithms and nothing works. I've finally found one that points me exactlly to the point I want. But it doesn't move if I change the position of the device which is my objective. Basically, what I want is that no matter the direction I'm using my device. The line always point me to the point (picLatitude,picLongitude). I understood that for the line to move, I can't use static variables. I need to use the values offered by the onSensorChanged(SensorEvent event). This are the data I have available:

event.values[0]: azimuth, rotation around the Z axis (device in relation to north, 0) event.values[1]: pitch, rotation around the X axis event.values[2]: roll, rotation around the Y axis mLatitude: device current latitude got from GPS (variable) mLongitude: device current longitude got from GPS (variable) picLatitude: static picture latitude established previously picLongitude: static picture longitude established previously distance: distance in Km from device to the picture calculated previously

And this the formula that works correct, and gives me the correct angle. (But it doesn't use any of the Sensor Data so the line Compass doesn't move):
double dLong = picLongitude - mLongitude; double y = (Math.sin(dLong) *
Math.cos(picLatitude)); double x = (Math.cos(mLatitude) * Math.sin(picLatitude) - Math.sin(mLatitude)*Math.cos(picLatitude)*Math.cos(dLong)); double angleDegreesWrongRange = Math.abs(Math.toDegrees(Math.atan2(y, x))); float angleDegrees = (float) ((angleDegreesWrongRange+360) % 360);
I got this "bearing" formula from this website: I've try adding, subtracting, the azimuth.. I've tried with the others, seriously at this point I'm just demoralized.

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