Question

如何清除所有片段动画，包括清除后台堆栈时的退出动画，目前我使用的是以下代码，但它似乎没有停止动画退出屏幕，而只是停止动画进入屏幕的新片段。

我正在使用的代码如下：

菜单片段 - 用于清除堆栈的代码

    private void clearBackStack() {
        FragmentUtils.sDisableFragmentAnimations = true;
        getSupportFragmentManager().popBackStackImmediate(null, FragmentManager.POP_BACK_STACK_INCLUSIVE);
        FragmentUtils.sDisableFragmentAnimations = false;
    }

Fragment Utils类：

public class FragmentUtils {
    public static boolean sDisableFragmentAnimations = false;
}

所有片段都有：

@Override
public Animation onCreateAnimation(int transit, boolean enter, int nextAnim) {
    if (FragmentUtils.sDisableFragmentAnimations) {
        Animation a = new Animation() {};
        a.setDuration(0);
        return a;
    }
    return super.onCreateAnimation(transit, enter, nextAnim);
}

导航菜单代码（我要禁用动画的地方）

    bottomNavigationView.setOnNavigationItemSelectedListener(new BottomNavigationView.OnNavigationItemSelectedListener() {
        @Override
        public boolean onNavigationItemSelected(@NonNull MenuItem item) {
            switch (item.getItemId()) {
                case R.id.action_events:

                    replaceFragment(new MainFragment());

                    break;
                case R.id.action_promotions:

                    replaceFragment(new MainFragment());
                    break;

                case R.id.action_menu:

                    clearBackStack();
                    replaceFragment(new MenuFragment());
                    break;

            }
            return true;
        }
    });

Answer 1

public void replaceFragment(BaseFragment fragment, int resId, boolean addToBackStack) {
    FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
    transaction.setCustomAnimations(0, 0);
    transaction.replace(resId, fragment);
    if (addToBackStack) {
        transaction.addToBackStack(null);
    }
    transaction.commitAllowingStateLoss();
}

禁用片段后台堆栈动画 - Android

1 个答案: