The Animate transitions between destinations documentation details the four types of animations: Entering a destination Exiting a destination Entering a destination via a pop action Exiting a destination via a pop action “Entering” refers to the destination that is coming onto the screen, while “exiting” refers to the destination leaving the screen. Therefore when you … Read more
As you discovered, the issue is visibility. When a view is initially set as gone in the xml file, Android will not render the layout until the visibility is changed to visible or invisible. If you attempt to animate on a view that has not been rendered yet, the animation will occur on the view … Read more
R.anim has the default animations defined (as final): nav_default_enter_anim nav_default_exit_anim nav_default_pop_enter_anim nav_default_pop_exit_anim in order to change this behavior, you would have to use custom NavOptions, because this is where those animation are being assigned to a NavAction. one can assign these with the NavOptions.Builder: protected NavOptions getNavOptions() { NavOptions navOptions = new NavOptions.Builder() .setEnterAnim(R.anim.default_enter_anim) .setExitAnim(R.anim.default_exit_anim) … Read more
I’m implementing a 2D page curl in the native canvas. Check my answer in: Implement page curl on android? EDIT: The code project of my implementation: http://code.google.com/p/android-page-curl/ EDIT2: Links updated
Better late than never, so here is the comprehensive list of the properties that can be animated with ObjectAnimator. http://developer.android.com/guide/topics/graphics/prop-animation.html#views
Like this. animation.setRepeatCount(Animation.INFINITE);
The Animators that @nmw implements in his answer were added in API Level 11 and will not work with Fragments as implemented by the Android support library. To listen to Fragment animation events, I extended the support library’s Fragment class and overrode onCreateAnimation, attaching a custom AnimationListener to the returned Animation object: public class MyFragment … Read more
So Warpzit was on the right track, he just didn’t address your specific issue too well. I came across the exact same issue and here is how I solved it. First I created a static boolean variable (for simplicity’s sake, lets put it in the FragmentUtils class)… public class FragmentUtils { public static boolean sDisableFragmentAnimations … Read more
The Android animation class applies to objects such as views and layouts. The canvas is just a surface for drawing which is either part of a View or linked to a bitmap. In onDraw in a custom view only one frame is drawn at the time until next invalidate is called, which means that you … Read more
You can do something like: ValueAnimator anim = ValueAnimator.ofInt(progress, seekBar.getMax()); anim.setDuration(Utility.setAnimationDuration(progress)); anim.addUpdateListener(new AnimatorUpdateListener() { @Override public void onAnimationUpdate(ValueAnimator animation) { int animProgress = (Integer) animation.getAnimatedValue(); seekBar.setProgress(animProgress); } }); anim.addListener(new AnimatorListenerAdapter() { @Override public void onAnimationEnd(Animator animation) { // done } }); anim.start();