android - 如何使工具栏按钮可点击？

Question

我在自定义工具栏中有一个汉堡包按钮。当我单击按钮时，我想打开幻灯片菜单。我的项目正在调试，但是当我单击汉堡按钮时，滑动菜单未打开。任何想法？

主要活动：

       class MainActivity : AppCompatActivity() {
       private lateinit var userPresenter: UserPresenterInterface
       private var drawerLayout: DrawerLayout? = null
       private var toggle: ActionBarDrawerToggle? = null
       private var rightIcon: Toolbar? = null
       private var navigationView: NavigationView? = null


    override fun onCreate(savedInstanceState: Bundle?) {
    super.onCreate(savedInstanceState)
    setContentView(R.layout.activity_main)
    userPresenter = UserPresenter(resources)
    supportActionBar?.elevation = 0f

        rightIcon?.setOnClickListener {

        drawerLayout = findViewById(R.id.drawer)
        rightIcon = findViewById(R.id.right_icon)
        setSupportActionBar(rightIcon)
        toggle = ActionBarDrawerToggle(this, drawerLayout, rightIcon, 
        R.string.open, R.string.close)
        drawerLayout!!.addDrawerListener(toggle!!)
        toggle!!.syncState()

        navigationView = findViewById(R.id.nav_view)
        }

custom_toolbar.xml：

   <RelativeLayout
   xmlns:android="http://schemas.android.com/apk/res/android"
   android:layout_width="match_parent"
   android:layout_height="wrap_content"
   android:background="@color/white">

    <RelativeLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:padding="16dp">

    <ImageView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentEnd="true"
        android:id="@+id/right_icon"
        android:layout_centerVertical="true"
        android:src="@drawable/ic_baseline_menu_24"
        android:layout_alignParentRight="true" />
      </RelativeLayout>
     </RelativeLayout>

标签： androidkotlinandroid-toolbar

Answer 1

尝试添加图像点击列表器并像这样显示和隐藏您的抽屉布局

rightIcon.setOnClickListener {
        if (drawerLayout.isOpen) {
            drawerLayout.closeDrawer(GravityCompat.START)
        } else {
            drawerLayout.openDrawer(GravityCompat.START)
        }
    }