x y coordinates animation

I can display an animation frame by frame but it doesnt move.


If I have an image view , how do I get the x,y coordinates of the image ?
How do I set the new x y values of this image?

MY code works with frame anmation only.

private void animate() {
            ImageView imgView = (ImageView) findViewById(R.id.animationImage);
            // imgView.setVisibility(ImageView.VISIBLE);
            imgView.setBackgroundResource(R.drawable.ani);
            

            AnimationDrawable frameAnimation = (AnimationDrawable) imgView
                        .getBackground();

            if (frameAnimation.isRunning()) {
                  frameAnimation.stop();
                  b.setText("Start");
            
            } else {
                  frameAnimation.start();
                  b.setText("Stop");
            }
      }
jagguyAsked:
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

x
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

alexey_gusevCommented:
0
garikapatisureshCommented:
Based on your I understand that you want to move an object from one place to another.

I have created one sample and attached below. I think it will full fill your requirement.
AnimationSampleActivity.java
Ball.java
AndroidManifest.xml
0
SanthanaTechnical LeadCommented:
Hi jagguy,

1) I can display an animation frame by frame but it doesnt move.

You are using animation drawable to animate the ImageView.

It is used to create  frame-by-frame animations, defined by a series of Drawable objects, which can be used as a View object's background

http://developer.android.com/reference/android/graphics/drawable/AnimationDrawable.html
It will not be used to move the view object.

2) how do I get the x,y coordinates of the image ? How do I set the new x y values of this image?

http://stackoverflow.com/questions/3619693/how-to-get-views-position

The geometry of a view is that of a rectangle.
A view has a location, expressed as a pair of left and top coordinates,
and two dimensions, expressed as a width and a height.

The unit for location and dimensions is the pixel.
It is possible to retrieve the location of a view by invoking the methods
getLeft()  - Returns the left, or X, coordinate of the rectangle representing the view.
getTop() - Returns the top, or Y, coordinate of the rectangle representing the view.
getRight() and getBottom() - These methods return the coordinates of the right and bottom edges of the rectangle representing the view.
calling getRight() is similar to the following computation: getLeft() + getWidth()
These methods both return the location of the view relative to its parent. For instance, when getLeft() returns 20, that means the view is located 20 pixels to the right of the left edge of its direct parent.
------------------------------------------------------------------------------------------------------------------------------

If you want to move the view by using Tranlate Animation  use following code

Animation lTraslateAnimation = new TranlateAnimation()0 , 0, 0, 500);
lTraslateAnimation.setDuration(2000);
lTraslateAnimation.setFillAfter(true);
lTraslateAnimation.setRepeatCount(-1);
lTraslateAnimation.setRepeatMode(Animation.REVERSE);
 imgView .startAnimation(lTraslateAnimation);

But here the problem is by using this TranslateAnimation we can move the views only in straight lines...
If you want to move views in customized way  like(Curve ,circle)...Then you need to use custom views and canvas , where you can pass x and y coordinates while drawing and invalidating the view. You need to override the following method while extending the View class. The changeViewCoordinates() method here can change the x,y coordinates in a curve.

public void onDraw(Canvas aCanvas){  
           aCanvas.drawBitmap(bitmap,x,y,null);  
          changeViewCoordinates();  
           invalidate()
}
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Java

From novice to tech pro — start learning today.