Android 在自定义视图中找不到片段id（…）的视图

我创建了接受片段的自定义视图。因此，稍后我的自定义视图将具有动态内容（片段）。但我在添加片段时遇到以下错误

原因：java.lang.IllegalArgumentException:未找到片段SampleFragment{470c924#0 id=0x7f080058}的id 0x7f080058（android.amanah.com.amanah:id/flContent）的视图

以下是我的自定义视图：

class AmBottomSheet(context: Context, attributeSet: AttributeSet?) : ConstraintLayout(context, attributeSet) {
    private val state = State()

    init {
        LayoutInflater.from(context)
                .inflate(R.layout.layout_bottom_sheet, this, true)
    }

    fun bind(newState: State.() -> Unit) {
        state.apply(newState)
        render(state)
    }

    private fun render(state: State) {
        tvTitle.text = state.title
        if (state.subTitle != null) {
            tvSubTitle.text = state.subTitle
        } else {
            tvSubTitle.visibility = GONE
        }

        ivClose.setOnClickListener {
            state.closeClickListener?.invoke(it)
        }

        attachContentFragment()
    }

    private fun attachContentFragment() {
        val transaction = state.supportFragmentManager?.beginTransaction()
        transaction?.replace(R.id.flContent, state.layoutContent)
        transaction?.commit()
    }

    class State {
        var title: String? = null
        var subTitle: String? = null
        var closeClickListener: (View?.() -> Unit)? = null
        var supportFragmentManager: FragmentManager? = null
        var layoutContent: Fragment? = null
    }
}

我这样称我的自定义视图：

...
bottomSheetView.bind {
            title = "Informasi"
            subTitle = "We can even add some listeners to the BottomSheet and for example do something when the dialog is dismissed"
            closeClickListener = {
                bottomSheetDialog.dismiss()
            }
            supportFragmentManager = getSupportFragmentManager()
            layoutContent = SampleFragment.newInstance()
        }
...

...
<FrameLayout
        android:id="@+id/flContent"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_margin="@dimen/standard_margin_x2"
        android:background="@color/colorSlate"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/tvSubTitle"
        app:layout_constraintVertical_bias="0.0" />
...

以及自定义视图（layout\u bottom\u sheet.xml）中作为片段容器的xml布局，如下所示：

...
bottomSheetView.bind {
            title = "Informasi"
            subTitle = "We can even add some listeners to the BottomSheet and for example do something when the dialog is dismissed"
            closeClickListener = {
                bottomSheetDialog.dismiss()
            }
            supportFragmentManager = getSupportFragmentManager()
            layoutContent = SampleFragment.newInstance()
        }
...

...
<FrameLayout
        android:id="@+id/flContent"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_margin="@dimen/standard_margin_x2"
        android:background="@color/colorSlate"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/tvSubTitle"
        app:layout_constraintVertical_bias="0.0" />
...

。。。
...

---

为什么我的自定义视图找不到flContent？

该对话框与windowmanager分开显示，因此它不包括在活动的视图层中。所以找不到你的内容

建议您使用BottomSheepDialogFragment并用childFragmentManager替换该片段