在使用Google创建商品和查询支付之前，您需要先提交到Google商店。
1. 导入Google Pay。
```java // 添加GooglePay支付工具类 implementation com.android.billingclient:billing:4.1.0 ```class GooglePayHelper { private val TAG = "GooglePayHelper" private var mActivity: Activity; constructor(mActivity: Activity) { this.mActivity = mActivity } /** * 购买监听 */ private val purchasesUpdatedListener = PurchasesUpdatedListener { billingResult, purchases -> // To be implemented in a later section. if (billingResult.responseCode == BillingResponseCode.OK) { //支付成功 if (!purchases.isNullOrEmpty()) { for (i in 0 until purchases.size) { var purchase = purchases[i]; //购买成功 消耗掉 同步后台 consume(purchase) } } } else if (billingResult.responseCode == BillingResponseCode.ITEM_ALREADY_OWNED) { //未消耗掉 查询补单 queryPurchases() } else if (billingResult.responseCode == BillingResponseCode.USER_CANCELED) { //取消支付 } else {// when (billingResult.responseCode) {// BillingResponseCode.SERVICE_TIMEOUT -> {// //服务连接超时// }// BillingResponseCode.FEATURE_NOT_SUPPORTED -> {// }// BillingResponseCode.SERVICE_DISCONNECTED -> {// //服务未连接// }// BillingResponseCode.USER_CANCELED -> {// //取消// }// BillingResponseCode.SERVICE_UNAVAILABLE -> {// //服务不可用// }// BillingResponseCode.BILLING_UNAVAILABLE -> {// //购买不可用// }// BillingResponseCode.ITEM_UNAVAILABLE -> {// //商品不存在//// }// BillingResponseCode.DEVELOPER_ERROR -> {// //提供给 API 的无效参数// }// BillingResponseCode.ERROR -> {// //错误// }// BillingResponseCode.ITEM_NOT_OWNED -> {// //不可购买// }// } } } private var billingClient = BillingClient.newBuilder(Application) .setListener(purchasesUpdatedListener) .enablePendingPurchases() .build() //检查之前的商品是否被消费 fun init() { //已经连接查询订单 if (billingClient.isReady) { queryPurchases() } else { //开始连接 billingClient.startConnection(object : BillingClientStateListener { override fun onBillingSetupFinished(billingResult: BillingResult) { if (billingResult.responseCode == BillingResponseCode.OK) { //BillingClient准备好了。你可以在这里查询购买情况。 queryPurchases() } else { Log.d(TAG, "init 连接失败 code:" + billingResult.responseCode) } } override fun onBillingServiceDisconnected() { // Try to restart the connection on the next request to // Google Play by calling the startConnection() method. Log.d(TAG, "init onBillingServiceDisconnected") } }) } } /** * 购买商品 */ private fun purchase(mSku: String, orderId: String) { if (billingClient.isReady) { val skuList: MutableList<String> = ArrayList() skuList.add(mSku) val params = SkuDetailsParams.newBuilder() params.setSkusList(skuList).setType(SkuType.INAPP) billingClient.querySkuDetailsAsync( params.build() ) { billingResult, skuDetailsList -> // Process the result. if (billingResult.responseCode == BillingResponseCode.OK) { if (!skuDetailsList.isNullOrEmpty()) { for (i in 0 until skuDetailsList.size) { val skuDetails = skuDetailsList[i] Log.d(TAG, "purchase skuDetails $skuDetails") if (mSku == skuDetails.sku) { val flowParams = BillingFlowParams.newBuilder() .setSkuDetails(skuDetails) .setObfuscatedAccountId(orderId) .build() //吊起支付 val responseCode = billingClient.launchBillingFlow( mActivity, flowParams ).responseCode Log.d(TAG, "purchase 去支付 code $responseCode") } } } else { Log.d(TAG, "purchase 未查询到商品") } } else { Log.d(TAG, "purchase 查询连接失败 cede" + billingResult.responseCode) } } } else { Log.d(TAG, "purchase 购买 未连接") } } /** * 消耗商品 * * @param purchaseToken 商品token */ private fun consume(purchase: Purchase) { if (billingClient.isReady) { val consumeParams = ConsumeParams.newBuilder() .setPurchaseToken(purchase.purchaseToken) .build() billingClient.consumeAsync( consumeParams ) { billingResult, s -> if (billingResult.responseCode == BillingResponseCode.OK) { // Handle the success of the consume operation. Log.d(TAG, "consume 消耗成功${googlePayResult.purchaseToken}") //同步给服务器 //do something } else { Log.d(TAG, "consume 消耗失败 code:" + billingResult.responseCode) } } } else { billingClient.startConnection(object : BillingClientStateListener { override fun onBillingSetupFinished(billingResult: BillingResult) { if (billingResult.responseCode == BillingResponseCode.OK) { //重连后 消耗掉 val consumeParams = ConsumeParams.newBuilder() .setPurchaseToken(purchase.purchaseToken) .build() billingClient.consumeAsync( consumeParams ) { billingResult, s -> if (billingResult.responseCode == BillingResponseCode.OK) { // Handle the success of the consume operation. Log.d(TAG, "consume 消耗成功${googlePayResult.purchaseToken}") //同步给服务器 //do something } else { Log.d(TAG, "consume 消耗失败 code:" + billingResult.responseCode) } } } else {// Log.d(TAG, "consume init 连接失败 code:" + billingResult.responseCode) } } override fun onBillingServiceDisconnected() { // Try to restart the connection on the next request to // Google Play by calling the startConnection() method. } }) } } /** * 补单消耗商品 * * @param purchaseToken 商品token */ private fun consume2(purchaseToken: String) { if (billingClient.isReady) { val consumeParams = ConsumeParams.newBuilder() .setPurchaseToken(purchaseToken) .build() billingClient.consumeAsync( consumeParams ) { billingResult, s -> if (billingResult.responseCode == BillingResponseCode.OK) { // Handle the success of the consume operation. Log.d(TAG, "consume 消耗成功$purchaseToken") } else { Log.d(TAG, "consume 消耗失败 code:" + billingResult.responseCode) } } } else { billingClient.startConnection(object : BillingClientStateListener { override fun onBillingSetupFinished(billingResult: BillingResult) { if (billingResult.responseCode == BillingResponseCode.OK) { //重连后 消耗掉 val consumeParams = ConsumeParams.newBuilder() .setPurchaseToken(purchaseToken) .build() billingClient.consumeAsync( consumeParams ) { billingResult, s -> if (billingResult.responseCode == BillingResponseCode.OK) { // Handle the success of the consume operation. Log.d(TAG, "consume 消耗成功$purchaseToken") } else { Log.d(TAG, "consume 消耗失败 code:" + billingResult.responseCode) } } } else { Log.d(TAG, "consume init 连接失败 code:" + billingResult.responseCode) } } override fun onBillingServiceDisconnected() { // Try to restart the connection on the next request to // Google Play by calling the startConnection() method. Log.d(TAG, "consume init onBillingServiceDisconnected") } }) } } /** * 补单操作 查询购买交易，以确保所有购买交易都得到成功处理，如购买未发货，或者未消耗 */ private fun queryPurchases() { if (billingClient.isReady) { billingClient.queryPurchasesAsync( SkuType.INAPP ) { billingResult, mutableList -> if (billingResult.responseCode == BillingResponseCode.OK) { if (mutableList.isNullOrEmpty()) { Log.d(TAG, "queryPurchases null") } else { for (i in 0 until mutableList.size) { Log.d(TAG, "queryPurchases init " + mutableList[i].purchaseState) if (mutableList[i].purchaseState == Purchase.PurchaseState.PURCHASED) { //已购买,消耗即可 consume2(mutableList[i].purchaseToken) } } } } else { Log.d(TAG, "queryPurchases error code" + billingResult.responseCode) } } } else { billingClient.startConnection(object : BillingClientStateListener { override fun onBillingSetupFinished(billingResult: BillingResult) { if (billingResult.responseCode == BillingResponseCode.OK) { //BillingClient准备好了。你可以在这里查询购买情况。 Log.d(TAG, "queryPurchases init 连接成功") } else { Log.d(TAG, "queryPurchases init 连接失败 code:" + billingResult.responseCode) } } override fun onBillingServiceDisconnected() { // Try to restart the connection on the next request to // Google Play by calling the startConnection() method. Log.d(TAG, "queryPurchases init onBillingServiceDisconnected") } }) } } /** * google支付 */ fun googlePay() { //向服务端获取订单ID 开始支付purchase("sku","orderid") } fun release() { if (billingClient.isReady) { billingClient.endConnection(); } mPayCallBack = null Log.d(TAG, "billingClient release") }}
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