コード例 #1
0
ファイル: SliderMenu.java プロジェクト: RyanLee7/ryan_reader
 private void changePage(int position, SliderItem item) {
   mIgnoreBackStack = true;
   if (mCurrentPage >= 0) {
     final SliderItem lastItem = mAdapter.getItem(mCurrentPage);
     final WeakReference<Fragment> ref = lastItem.mLastFragment;
     final Fragment fragment = ref == null ? null : ref.get();
     if (fragment != null && fragment.isAdded() && lastItem.mSaveState) {
       if (!fragment.isDetached()) {
         mFragmentManager.beginTransaction().detach(fragment).commit();
         mFragmentManager.executePendingTransactions();
       }
       lastItem.mSavedState = mFragmentManager.saveFragmentInstanceState(fragment);
     }
   }
   mCurrentPage = position;
   mAdapter.notifyDataSetInvalidated();
   while (mFragmentManager.popBackStackImmediate()) {}
   final Fragment fragment = Fragment.instantiate(item.mFragmentClass);
   if (item.mSavedState != null) {
     fragment.setInitialSavedState(item.mSavedState);
   }
   item.mLastFragment = new WeakReference<Fragment>(fragment);
   replaceFragment(mFragmentManager, fragment);
   mIgnoreBackStack = false;
 }
コード例 #2
0
ファイル: SliderMenu.java プロジェクト: RyanLee7/ryan_reader
 @Override
 public void onBackStackChanged() {
   if (mIgnoreBackStack || mCurrentPage < 0 || mCurrentPage >= mItems.size()) {
     return;
   }
   SliderItem item = mItems.get(mCurrentPage);
   WeakReference<Fragment> ref = item.mLastFragment;
   Fragment fragment = ref == null ? null : ref.get();
   if (fragment == null || !item.mSaveState) {
     return;
   }
   if (fragment.isAdded() && fragment.isDetached() && !fragment.isVisible()) {
     item.mSavedState = mFragmentManager.saveFragmentInstanceState(fragment);
   }
 }
  @Override
  public void destroyItem(ViewGroup container, int position, Object object) {
    Fragment fragment = (Fragment) object;

    if (mCurTransaction == null) {
      mCurTransaction = mFragmentManager.beginTransaction();
    }
    if (DEBUG)
      Log.v(
          TAG,
          "Removing item #" + position + ": f=" + object + " v=" + ((Fragment) object).getView());
    while (mSavedState.size() <= position) {
      mSavedState.add(null);
    }
    mSavedState.set(position, mFragmentManager.saveFragmentInstanceState(fragment));
    mFragments.set(position, null);

    mCurTransaction.remove(fragment);
  }
  public void destroyAllFragments() {
    /* if (mCurTransaction == null) {
        mCurTransaction = mFragmentManager.beginTransaction();
    } */

    final int length = mFragments.size();
    while (mSavedState.size() <= length) {
      mSavedState.add(null);
    }
    for (int i = 0; i < length; i++) {
      final Fragment fr = mFragments.get(i);
      if (fr != null) {
        mSavedState.set(i, mFragmentManager.saveFragmentInstanceState(fr));
        mFragments.set(i, null);
        // mCurTransaction.remove(fr);
      }
    }
    /* mCurTransaction.commit();
    mCurTransaction = null; */
  }