小编Vex*_*til的帖子

我正在使用setDisplayHomeAsUpEnabled来显示箭头而不是抽屉"汉堡"图标,但它没有动画或任何东西.相反,它立即显示箭头可绘制.

主屏幕:( 专辑1)

点按电影时:( 专辑2)

问题是,当我滑动抽屉时,图标会使动画很好,这让我想到也许我不应该使用setDisplayHomeAsUpEnabled :( 专辑3)

专辑: http ://imgur.com/a/LkXbh

这是我的抽屉切换代码:

    Toolbar toolbar = (Toolbar) findViewById(R.id.my_awesome_toolbar);
    setSupportActionBar(toolbar);

    drawerAdapter = new DrawerAdapter(this, App.getNavItems(), getSupportFragmentManager());
    drawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
    drawerList = (ExpandableListView) findViewById(R.id.left_drawer);

    // Set onGroupClick and onChildClick
    drawerAdapter.setClickEvents(MainActivity.this, drawerLayout, drawerList);
    drawerList.setAdapter(drawerAdapter);

    ActionBarDrawerToggle toolbarDrawerToggle = new ActionBarDrawerToggle(
            this,                 
            drawerLayout,        
            toolbar,             
            R.string.drawer_open, 
            R.string.drawer_close 
    ) {

        public void onDrawerClosed(View view) {
            super.onDrawerClosed(view);
            invalidateOptionsMenu();
        }

        public void onDrawerOpened(View view) {
            super.onDrawerOpened(view);
            invalidateOptionsMenu();
        }
    };
    drawerLayout.setDrawerListener(toolbarDrawerToggle);
    toolbarDrawerToggle.syncState();

编辑:我想要的动画不是在打开抽屉时,已经有效了.我想在加载特定片段时手动触发动画.我可能没有正确解释自己.