Android Spinner 自定义文本视图不可点击

Question

为什么使用自定义文本视图会阻止 Spinner 文本和项目（但不是箭头）可点击，而 Android 提供的 Spinner 文本布局却不是这种情况？

使用时有效

    val arrayAdapter = ArrayAdapter(view!!.context, android.R.layout.simple_dropdown_item_1line, spinnerItems)
    arrayAdapter.setDropDownViewResource(android.R.layout.simple_dropdown_item_1line)

XML

<Spinner
        android:id="@+id/mySpinner"
        style="@style/Widget.AppCompat.Spinner.Underlined"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:spinnerMode="dialog"/>

科特林

    spinnerItems = arrayOf(
        "Cathedral of the Intercession of the Most Holy Theotokos on the Moat",
        "Ferapontov Monastery",
        "Historic Monuments of Novgorod and Surroundings",
        "Golden Mountains of Altai",
        "Historic Centre of Saint Petersburg and Related Groups of Monuments",
        "Bogoroditse-Smolensky Monastery",
        "White Monuments of Vladimir and Suzdal"
    )

    val arrayAdapter = ArrayAdapter(view!!.context, R.layout.spinner_item, spinnerItems)
    arrayAdapter.setDropDownViewResource(R.layout.spinner_item)

    mSpinner.adapter = arrayAdapter

spinner_item.xml

<?xml version="1.0" encoding="utf-8"?>
<TextView
        xmlns:android="http://schemas.android.com/apk/res/android"
        style="?android:attr/dropDownItemStyle"
        android:id="@+id/my_SpinnerItem"
        android:background="?android:attr/selectableItemBackground"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:clickable="true"
        android:focusable="true"
        android:paddingBottom="16dp"
        android:paddingTop="16dp"
        android:textColor="?android:attr/textColorPrimary" />

Answer 1

删除这两行：

android:clickable="true"
android:focusable="true"

您的代码运行良好。