如何将汉堡包图标取回导航抽屉？这个 AppBarConfiguration 把它改成背箭，为什么？
下面是我的代码：
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
context = this;
init_v3();
BottomNavigationView navView = findViewById(R.id.nav_view);
// Passing each menu ID as a set of Ids because each
// menu should be considered as top level destinations.
AppBarConfiguration appBarConfiguration = new AppBarConfiguration.Builder(R.id.home, R.id.nav_tasks)
.build();
NavController navController = Navigation.findNavController(this, R.id.nav_host_fragment);
NavigationUI.setupActionBarWithNavController(this, navController, appBarConfiguration);
NavigationUI.setupWithNavController(navView, navController);
}
1条答案
按热度按时间lsmd5eda1#
您应该添加所有不希望“向上/向后”按钮显示在
appBarConfiguration在您的示例中，此up/back按钮不会显示在中R.id.nav_tasks&R.id.home已添加的片段。>>如果你有更多的片段，那么把它们添加到下面的列表中，用逗号分隔。要显示抽屉汉堡图标，你需要打电话
setOpenableLayout(drawerLayout)```DrawerLayout drawerLayout = findViewById(R.id.drawer_layout);
AppBarConfiguration appBarConfiguration = new AppBarConfiguration.Builder(
R.id.home,
R.id.nav_tasks)
.setOpenableLayout(drawerLayout)
.build();