我想尝试在自定义视图中使用ViewBinding,例如:
MainActivity <=> layout_main.xml
MyCustomView <=> layout_my_custom_view.xml
layout_main.xml
<FrameLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<com.example.myapplication.MyCustomView
android:id="@+id/custom_view"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</FrameLayout>
layout_my_custom_view.xml
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<TextView
android:id="@+id/line1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Line1" />
<View
android:id="@+id/divider"
android:layout_width="match_parent"
android:layout_height="2dp"
android:background="#2389bb" />
<TextView
android:id="@+id/line2"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Line2" />
</LinearLayout>
主活动
class MainActivity : AppCompatActivity() {
private lateinit var binding: LayoutMainBinding
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
binding = LayoutMainBinding.inflate(layoutInflater)
setContentView(binding.root)
binding.customView.line1.text = "Hello"
binding.customView.line2.text = "World"
}
}
在我的MainActivity中,我可以使用绑定找到MyCustomView,但是我无法在MyCustomView中进一步找到@id/line1和@id/line2。在这种情况下,是否只能使用ViewBinding或者必须使用findViewById或Kotlin synthetic?感谢您的提前帮助。
custom_view.line1
. - Ethan Choi