安卓 Fragment切换操作内存泄露了

Question

为什么这个安卓 Fragment切换操作内存泄露了，内存在不断上涨，且会崩溃；

   @Override
    public void onClick(View view) {
        int id = view.getId();
        resetBottonState();
        setBottonItemSelected(id);
        FragmentManager fragmentManager = getSupportFragmentManager();
        FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
        Fragment fragmentToReplace = null;
        switch (id) {

            case R.id.ll_home:
                if (fragIdx != 0 && !fragmentManager.isStateSaved()) {
                    fragmentToReplace = fragmentManager.findFragmentByTag(HomeFragment.TAG);
                    if (fragmentToReplace == null) {
                        fragmentToReplace = HomeFragment.newInstance("这是首页", "");
                    }
                    fragIdx = 0;
                }

                break;
            case R.id.ll_help:
                if (fragIdx != 1) {
                    fragmentToReplace = fragmentManager.findFragmentByTag(HelpFragment.TAG);
                    if (fragmentToReplace == null) {
                        fragmentToReplace = HelpFragment.newInstance("这是帮助", "");
                    }
                    fragIdx = 1;
                }
                break;
            case R.id.ll_mine:
                if (fragIdx != 2) {
                    fragmentToReplace = fragmentManager.findFragmentByTag(MineFragment.TAG);
                    if (fragmentToReplace == null) {
                        fragmentToReplace = MineFragment.newInstance("这是我的", "");
                    }
                    fragIdx = 2;
                }
                break;

            default:
                break;
        }

        if (fragmentToReplace != null) {
            fragmentTransaction.replace(R.id.fcv_fragment, fragmentToReplace, fragmentToReplace.getClass().getName());
            fragmentTransaction.commit();
        }
    }

Answer 1

你这个几个的Fragment的TAG值是啥？