在Kotlin android中将ArrayList转换为arrayof？

我有SingleChoiceItems对话框，我有List not arrayof 我想把这个列表转换成arrayof

MaterialAlertDialogBuilder(ctx)
                .setTitle("Hello")
                .setNeutralButton("Cancle") { dialog, which ->
                    // Respond to neutral button press
                }
                .setPositiveButton("Ok") { dialog, which ->
                    // Respond to positive button press
                }
                // Single-choice items (initialized with checked item)
                .setSingleChoiceItems(?, checkedItem) { dialog, which ->
                    // Respond to item chosen
                }
                .show()

---

使用此扩展功能

inline fun <reified T> ArrayList<T>.toSingleArray() : Array<T>{
        return Array(this.size) { i -> this[i] }
}

inline fun ArrayList.toSingleArray（）：数组{
返回数组（this.size）{i->this[i]}
}

简单地像这样使用它

arrayListOf<String>("Hi","i","am","an","array").toSingleArray()

arrayListOf（“Hi”、“i”、“am”、“an”、“array”）。toSingleArray（）

按照此操作了解

具体化的

关键字

---

使用此扩展功能

inline fun <reified T> ArrayList<T>.toSingleArray() : Array<T>{
        return Array(this.size) { i -> this[i] }
}

inline fun ArrayList.toSingleArray（）：数组{
返回数组（this.size）{i->this[i]}
}

简单地像这样使用它

arrayListOf<String>("Hi","i","am","an","array").toSingleArray()

arrayListOf（“Hi”、“i”、“am”、“an”、“array”）。toSingleArray（）

按照此操作了解

具体化的

关键字

---

我用这个解决了这个问题

 override fun onItemSwipeRight(position: Int) {
        val phonesItems = getPhonesArray(position)
        val checkedItem = 0
        MaterialAlertDialogBuilder(ctx, R.style.MaterialAlertDialog_App)
                .setTitle(ctx.getString(R.string.tit_phones_dialog, ctx.getString(R.string.str_sms)))
                .setNeutralButton(ctx.getString(R.string.str_cancel)) { dialog, which ->
                    // Respond to neutral button press
                }
                .setPositiveButton(ctx.getString(R.string.str_ok)) { dialog, which ->
                    // Respond to positive button press
                }
                // Single-choice items (initialized with checked item)
                .setSingleChoiceItems(phonesItems, checkedItem) { dialog, which ->
                    // Respond to item chosen
                }
                .show()
    }

只需添加此函数即可返回数组

private fun getPhonesArray(position: Int): Array<String?> {
        val phonesList = arrayListOf<String>();
        customerWithPhonesList[position].customerPhones.forEach { phone ->
            phonesList.add("${phone.countryCode} ${phone.phoneNumber}");
        }
        return phonesList.toTypedArray()
    }

private fun getPhonesArray（位置：Int）：数组{
val phonesList=arrayListOf（）；
customerWithPhonesList[position].customerPhones.forEach{phone->
添加（“${phone.countryCode}${phone.phoneNumber}”）；
}
返回phonesList.toTypedArray（）
}

我解决了这个问题

 override fun onItemSwipeRight(position: Int) {
        val phonesItems = getPhonesArray(position)
        val checkedItem = 0
        MaterialAlertDialogBuilder(ctx, R.style.MaterialAlertDialog_App)
                .setTitle(ctx.getString(R.string.tit_phones_dialog, ctx.getString(R.string.str_sms)))
                .setNeutralButton(ctx.getString(R.string.str_cancel)) { dialog, which ->
                    // Respond to neutral button press
                }
                .setPositiveButton(ctx.getString(R.string.str_ok)) { dialog, which ->
                    // Respond to positive button press
                }
                // Single-choice items (initialized with checked item)
                .setSingleChoiceItems(phonesItems, checkedItem) { dialog, which ->
                    // Respond to item chosen
                }
                .show()
    }

只需添加此函数即可返回数组

private fun getPhonesArray(position: Int): Array<String?> {
        val phonesList = arrayListOf<String>();
        customerWithPhonesList[position].customerPhones.forEach { phone ->
            phonesList.add("${phone.countryCode} ${phone.phoneNumber}");
        }
        return phonesList.toTypedArray()
    }

private fun getPhonesArray（位置：Int）：数组{
val phonesList=arrayListOf（）；
customerWithPhonesList[position].customerPhones.forEach{phone->
添加（“${phone.countryCode}${phone.phoneNumber}”）；
}
返回phonesList.toTypedArray（）
}