Remove or Clear All Fragments From ViewPager

问题

I'm populating view pager through fragments likes this

pagerAdapter = new PagerAdapter(getSupportFragmentManager());
        mViewPager = (ViewPager) findViewById(R.id.container);

        for (int i = 0; i < 10; i++) {
            newfragment fragobj = new newfragment();
            fragobj.setArguments(bundle);
            pagerAdapter.addFragment(fragobj, "Category");
        }

            mViewPager.setAdapter(pagerAdapter);
            mViewPager.setCurrentItem(page);

I want to clear all fragments and add new fragments after clearing. If I add new fragments now it ads on with old fragments.

I tried many stack overflow answers but none of them worked for me.

回答1:

the fragment was already getting removed and destroyed. the issue was of viewpages.

Only this worked for me

myViewPager.setSaveFromParentEnabled(false);

Cheers !

回答2:

Add this method in ViewPagerAdapter and call it when you want to clear fragments from viewPager

public void clear() {
    FragmentTransaction transaction = manager.beginTransaction();
    for (Fragment fragment : mFragmentList) {
        transaction.remove(fragment);
    }
    mFragmentList.clear();
    transaction.commitAllowingStateLoss();
}

回答3:

mViewPager : is the view you are using to set you Fragment

mViewPager = (YourViewPager) findViewById(R.id.myPager);

TABLE : is just a Integer list of the position of all my Fragments

public void destroyAllItem() {
        int mPosition = mViewPager.getCurrentItem();
        int mPositionMax = mViewPager.getCurrentItem()+1;
        if (TABLE.size() > 0 && mPosition < TABLE.size()) {
            if (mPosition > 0) {
                mPosition--;
            }

            for (int i = mPosition; i < mPositionMax; i++) {
                try {
                    Object objectobject = this.instantiateItem(mViewPager, TABLE.get(i).intValue());
                    if (objectobject != null)
                        destroyItem(mViewPager, TABLE.get(i).intValue(), objectobject);
                } catch (Exception e) {
                    Log.i(TAG, "no more Fragment in FragmentPagerAdapter");
                }
            }
        }
    }

    @Override
    public void destroyItem(ViewGroup container, int position, Object object) {
        super.destroyItem(container, position, object);

        if (position <= getCount()) {
            FragmentManager manager = ((Fragment) object).getFragmentManager();
            FragmentTransaction trans = manager.beginTransaction();
            trans.remove((Fragment) object);
            trans.commit();
        }
    }

来源：https://stackoverflow.com/questions/40293118/remove-or-clear-all-fragments-from-viewpager