以编程方式创建的单选按钮不会切换

Question

我正在以编程方式创建带有两个单选按钮的单选组。最初，检查一个按钮。在创建时，当我单击另一个按钮时，最初选中的按钮的状态不会切换。

        val medlayout: LinearLayout = findViewById(R.id.manuallayout)
        var inputgroup = RadioGroup(this)
        inputgroup.orientation = RadioGroup.HORIZONTAL
        medlayout.addView(inputgroup)

        var inputText = RadioButton(this)
        inputText.text = "Type Name"
        inputText.isChecked = true
        inputgroup.addView(inputText)

        var inputPic = RadioButton(this)
        inputPic.text = "Take a Photo"
        inputgroup.addView(inputPic)

我在这里想念什么

Answer 1

您需要设置单选按钮的ID

val medlayout: LinearLayout = findViewById(R.id.manuallayout)
var inputgroup = RadioGroup(this)
inputgroup.orientation = RadioGroup.HORIZONTAL
medlayout.addView(inputgroup)

var inputText = RadioButton(this)
inputText.id = View.generateViewId()    // Set ID for inputText
inputText.text = "Type Name"
inputText.isChecked = true
inputgroup.addView(inputText)

var inputPic = RadioButton(this)
inputPic.id = View.generateViewId()    // Set ID for inputPic
inputPic.text = "Take a Photo"
inputgroup.addView(inputPic)

Answer 2

只需将id设置为您的RadioButton，就像这样：

    val medlayout: LinearLayout = findViewById(R.id.ll)
    var inputgroup = RadioGroup(this)
    inputgroup.orientation = RadioGroup.HORIZONTAL
    medlayout.addView(inputgroup)

    var inputText = RadioButton(this)
    inputText.text = "Type Name"
    inputText.id = 0
    inputText.isChecked = true
    inputgroup.addView(inputText)

    var inputPic = RadioButton(this)
    inputPic.text = "Take a Photo"
    inputPic.id = 1
    inputgroup.addView(inputPic)