如何隐藏或更改 Kotlin 对话框后面的页面背景？

Question

我正在尝试删除或更改此对话框出现时的颜色或背景：

是否可以从对话框中完成？

对话函数：

fun showAddNoteDialog() {
    val dialog = Dialog(requireActivity())
    dialog.requestWindowFeature(Window.FEATURE_NO_TITLE)
    dialog.setCancelable(true)

    dialog.setContentView(R.layout.ilmnotes_dialog)
    btn_add = dialog.findViewById(R.id.btn_add)
    titleEditText = dialog.findViewById(R.id.title)
    noteDescText = dialog.findViewById(R.id.noteDesc)
    date_container = dialog.findViewById(R.id.date_container)
    date_container.applyClickShrink()


    date_container.setOnClickListener {
        val datePicker: DialogFragment = DatePickerFragment()
        // Get Current Date
        val c = Calendar.getInstance()
        mYear = c[Calendar.YEAR]
        mMonth = c[Calendar.MONTH]
        mDay = c[Calendar.DAY_OF_MONTH]

        val datePickerDialog = DatePickerDialog(
            it.context,
            DatePickerDialog.OnDateSetListener { view, year, monthOfYear, dayOfMonth ->
                Toast.makeText(
                    it.context,
                    "$year-$monthOfYear-$dayOfMonth",
                    Toast.LENGTH_LONG
                ).show()

            }, mYear, mMonth, mDay
        )
        datePickerDialog.show()
    }


    btn_add.setOnClickListener {
        postNote(dialog)
    }



    dialog.show()

}

所以我试图隐藏对话框后面的页面而不是对话框背景本身

实现此目标的正确方法是什么？

Answer 1

创建全屏布局

ilmnotes_dialog.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    //Container here 

</androidx.constraintlayout.widget.ConstraintLayout>

Kotlin 代码

val dialog = Dialog(this, android.R.style.Theme_Translucent_NoTitleBar_Fullscreen)

dialog.setContentView(R.layout.ilmnotes_dialog)
val window = dialog.window
window!!.setBackgroundDrawableResource(R.color.dialog_color)
dialog.show()

在 color.xml

中创建颜色变量

<color name="dialog_color">#80BB86FC</color>

注意：这里BB86FC是颜色，所以根据你的UI改变，80是alpha，FF是完全不透明的，00是透明的

Answer 2

检查这个旧的 post：How to change the background color around a DialogFragment?

（考虑使用 DialogFragment）

如何隐藏或更改 Kotlin 对话框后面的页面背景？

how to hide or change the background of the page behind the dialog in Kotlin?

java

android

kotlin

background

dialog