当前activity绑定一个新的碎片页笔记

    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_history);
        getSupportFragmentManager()
                .beginTransaction()
                .replace(R.id.ll_container,new HisFragment())//设置显示fragment
                .addToBackStack(null)
                .commit();
    }