Parcelable 在將活動實例作為 putExtra 發送到另一個活動時遇到 IOException 寫入可序列化對象錯誤

Question

我有一個聽眾說 IListener 被聲明為

interface IListener : Serializable {
     fun onPurchaseUpdated(transactionResponse: TransactionResponse)
}

其中 TransactionResponse 是 Parcelable Object。 如圖所示：

@Parcelize
data class TransactionResponse(
    var code: Int?,
    var message: String?,
    var status: String?,
    val orderId: String? = null, 
    val txnId: String? = null,
    val amount: Double? = 0.0,
    val timestamp: String? = null,
    val startDate: String? = null,
    val endDate: String? = null,
    val skuId: Long? = 0,
    val currency: String? = null
) : Parcelable {}

我的主要活動實現了這個監聽器並覆蓋了 onPurchaseUpdated() 方法。 在我的 MainActivity 中，我啟動了另一個名為 MainActivity2 的活動，如下所示：

val intent = Intent(context, MainActivity2::class.java)
    intent.putExtra(LISTNER, iListenerInstance)
    context.startActivity(intent)

其中在 MainActivity 中獲取 iListenerInstance 如下圖：

val iListenerInstance= this as IListener 

但是，當我執行此應用程序時，會因以下錯誤而崩潰：

Parcelable encountered IOException writing serializable object (name = com.abc.sampleclientapp.MainActivity)

主要活動代碼是

class MainActivity : AppCompatActivity(), IListener {
private var isAutoConfirmed = false
private var orderId: String? = null

override fun onPurchaseUpdated(transactionResponse: TransactionResponse) {
    Log.i("Abc", "transactionResponse = $transactionResponse")
    orderId = transactionResponse.orderId
}

override fun onCreate(savedInstanceState: Bundle?) {
    super.onCreate(savedInstanceState)
    setContentView(R.layout.activity_main)
    buy.requestFocus()
}

override fun onRestoreInstanceState(savedInstanceState: Bundle) {
    super.onRestoreInstanceState(savedInstanceState)
    isAutoConfirmed = savedInstanceState.getBoolean("isAutoConfirmed")
}

override fun onSaveInstanceState(outState: Bundle) {
    super.onSaveInstanceState(outState)
    outState.putBoolean("isAutoConfirmed", isAutoConfirmed)
}

fun buttonClicked(v: View?) {
    when (v!!.id) {

        R.id.buy_new -> {
            requestPayNewApi()
            isAutoConfirmed = false
        }
    }
}

private fun requestPayNewApi() {
    var skuId = sku_id.text.toString()
    if (skuId.isEmpty()) {
        skuId = BuildConfig.DEFAULT_SKU
    }
    val iListener = this as IListener
   val intent = Intent(context, MainActivity2::class.java)
   intent.putExtra(LISTNER, iListenerInstance)
    context.startActivity(intent)
}

private fun getUniqueOrderID(): String {
    val allowedChars = ('A'..'Z') + ('a'..'z') + (1..9)
    return (1..UNIQUE_ID_LENGTH)
        .map { allowedChars.random() }
        .joinToString("").plus(System.currentTimeMillis())
}

companion object {
    private const val UNIQUE_ID_LENGTH =
        17 // It is 27, UNIQUE_ID_LENGTH + 10 digit UNIX timestamp
}
}

Answer 1

看起來問題是我們無法序列化活動上下文。 因此，每當在偵聽器中引用/聲明 Activity 或其內部類時，都會拋出異常。