如何在android中替换片段时检查完成setCustomAnimations

Question

In my activity or fragment I used method:

  public void replaceFragment(Fragment fragment, boolean addToBackStack) { FragmentTransaction transaction = getChildFragmentManager().beginTransaction(); transaction.setCustomAnimations(R.anim.slide_in_right, 0); if (addToBackStack) { transaction.addToBackStack(null); } transaction.replace(R.id.mFrameContainer, fragment); transaction.commitAllowingStateLoss(); } 

when replace fragment. I run but in some screen have load data from sever, it's lag when show fragment so I want when animation finish I will call method load data. So how I can check finish animation replace fragment. I search and see in stack over but I still can't do it. If you have answer for my question, please share to me! Thank you very much!

Answer 1

Instead of importing import android.app.Fragment; , use import android.support.v4.app.Fragment; . Change getFragmentManager in your replaceFragment method with getSupportFragmentManager . Then, in your fragment class, add the following:

@Override
public Animation onCreateAnimation(int transit, boolean enter, int nextAnim) {

    Animation anim = AnimationUtils.loadAnimation(getActivity(), nextAnim);

    anim.setAnimationListener(new Animation.AnimationListener() {

        @Override
        public void onAnimationStart(Animation animation) {

        }

        @Override
        public void onAnimationRepeat(Animation animation) {

        }

        @Override
        public void onAnimationEnd(Animation animation) {
            // TODO: This is where you will put your code for when the animation is finished
        }
    });

    return anim;
}

Put the code you want to execute after in onAnimationEnd .