Show Dialogfragment with Animation Growing from a Point

How to add animation to DialogFragment?

@Override
public Dialog onCreateDialog(Bundle savedInstanceState) 
{
    final Dialog dialog = super.onCreateDialog(savedInstanceState);
    dialog.getWindow().getAttributes().windowAnimations = R.style.detailDialogAnimation;
    return dialog;
}

The answer was from stackoverflow.com/a/13537234/969325 but You have to set the style at onCreateDialog function.

Animation With DialogFragment Android

The reason was that animations on device were disabled.

Shrink/Grow layout w/ animation on DialogFragment

You can define a custom animator that updates the height property at each frame of the animation. For example:

int startHeight = slideDownView.getHeight();
// Note that you should not hardcode "300" as that will be different pixel values on
// different devices - get the value from a dimen resource or scale by the
// device density
int endHeight = startHeight - getDistanceToAnimate();

// Create a simple int animator that animates between the starting and ending height
ValueAnimator animator = ValueAnimator.ofInt(startHeight, endHeight);
animator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
    @Override
    public void onAnimationUpdate(ValueAnimator valueAnimator) {
        // On each frame, update the view height
        int value = (Integer) valueAnimator.getAnimatedValue();
        ViewGroup.LayoutParams layoutParams = view.getLayoutParams();
        layoutParams.height = value;
        view.setLayoutParams(layoutParams);
    }

    @Override
    public void onAnimationEnd(Animator animation) {
       // Once the animation finishes, you might have to update the view's final
       // height and / or its `layout_height` attribute.
    }
});

animator.setDuration(getAnimationTime());
animator.start();

Hope that helps!

Navigation Architecture Component: transition animations not working for dialog

As of version 2.2.0-alpha02 this is the limitation of Navigation component. You can view the source code of DialogFragmentNavigator

However, you can pretty easily achieve animation for DialogFragment using the following steps:

Create a style mentioning the enter and exit animations from anim folder:

    <style name="MyDialogAnimation">
        <item name="android:windowEnterAnimation">@anim/enter_anim</item>
        <item name="android:windowExitAnimation">@anim/exit_anim</item>
    </style>

Inside the DialogFragment set the style as windowAnimations

     override fun onActivityCreated(savedInstanceState: Bundle?) {
        super.onActivityCreated(savedInstanceState)
        dialog?.window?.attributes?.windowAnimations = R.style.MyDialogAnimation
    }

Find more here.

FragmentDialog animate an layout on dismiss

As found here https://stackoverflow.com/a/8209841/379865 the solution that works is pretty simple: get the dialog and listen for key presses.

getDialog().setOnKeyListener(new OnKeyListener() {

                @Override
                public boolean onKey(DialogInterface dialog, int keyCode, KeyEvent event) {
                    if (keyCode == KeyEvent.KEYCODE_BACK)
                    {
                        final Animation anim =
                                AnimationUtils.loadAnimation(getActivity(),
                                        R.anim.translate_to_bottom);
                        anim.setAnimationListener(new AnimationListener() {

                            @Override
                            public void onAnimationStart(Animation animation) {
                                // TODO Auto-generated method stub

                            }

                            @Override
                            public void onAnimationRepeat(Animation animation) {
                                // TODO Auto-generated method stub

                            }

                            @Override
                            public void onAnimationEnd(Animation animation) {
                                dismiss();

                            }
                        });
                        layMain.startAnimation(anim);
                        return true;
                    }
                    return false;
                }
            });