Android In App Purchase - 无法从 onBillingSetupFinished() 事件调用按钮 setText()

Question

我有一个应用内购买功能，我认为该功能遵循标准流程，但遇到了与按钮 setText() 更新相关的奇怪问题。 这是我想做的：

1. 开始计费连接
2. 连接成功/onBillingSetupFinished() 我加载了 SKus 并希望在按钮中显示价格。 这并不是一直有效，调试很痛苦，因为 Toast.makeText() 方法没有显示任何进度。但最后我可以在模拟器中登录 Google Play 后在模拟器中重现该问题。

我注意到如果我从onBillingSetupFinished() 执行一个按钮setText(price)，则下一行代码不会执行。我也没有在 logcat 中看到任何内容。它在BillingClientStateListener-Setting Hard code price 之后卡住，永远不会到达BillingClientStateListener-DONE Setting Hard code price 奇怪的是有时这有效，但大多数时候无效。有什么可以指导我下一步该怎么做？

这是我的代码摘录：

版面摘自：

 <LinearLayout
            android:layout_width="wrap_content"
            android:orientation="horizontal"
            android:layout_height="wrap_content"
            android:layout_marginTop="2dp"
            android:layout_gravity="center"
            android:gravity="center_horizontal">
              <Button
                  android:id="@+id/btn_buy_100coins"
                  style="@style/BuyButton250"
                  android:layout_width="120dp"
                  android:text="@string/buy"
                  android:onClick="onClickBuy100"
                  />
            <Button
                android:id="@+id/btn_buy_250coins"
                style="@style/BuyButton250"
                android:layout_width="120dp"
                android:text="@string/buy"
                android:layout_marginLeft="15dp"
                android:onClick="onClickBuy250"/>

            <Button
                android:id="@+id/btn_buy_700coins"
                style="@style/BuyButton250"
                android:layout_width="120dp"
                android:text="@string/buy"
                android:layout_marginLeft="15dp"
                android:onClick="onClickBuy700"/>
            <TextView
                android:layout_width="50dp"
                android:layout_height="wrap_content"
                android:layout_gravity="center"
                android:text="@string/best_deal"
                android:textColor="@color/blue_neon"
                android:layout_marginLeft="5dp"
                android:textSize="14sp"
                android:textStyle="bold"
                />

        </LinearLayout>

Java 代码

 @Override
    protected void onCreate( Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);
       
        setContentView(R.layout.activity_earn_coins);


        billingClient = BillingClient.newBuilder(this)
                .setListener(purchasesUpdatedListener)
                .enablePendingPurchases()
                .build();


        btn100 = findViewById(R.id.btn_buy_100coins);
        btn250 = findViewById(R.id.btn_buy_250coins);
        btn700 = findViewById(R.id.btn_buy_700coins);

        //-->Setting Dummy price OnCreate - works OK
        Log.i("BillingInfo-", "OnCreate: Setting Hard code price");
        btn100.setText("₹10.00");
        btn250.setText("₹20.00");
        btn700.setText("₹30.00");
        Log.i("BillingInfo-", " OnCreate: DONE Setting Hard code price");
        //--<--

         StartBillingConnection();
   

    } 




private void StartBillingConnection() {

        Log.i("BillingInfo-", "Billing Client Starting");

        billingClient.startConnection(new BillingClientStateListener() {
            @Override
            public void onBillingSetupFinished(BillingResult billingResult) {

                int responseCode = billingResult.getResponseCode();
                if (responseCode == BillingClient.BillingResponseCode.OK) {

                    Log.i("BillingInfo-", "Billing Client connected");
                  //  Toast.makeText(getApplicationContext(), "Billing client loaded successfully!", Toast.LENGTH_SHORT).show();

                    //-->Setting price here - DOESN'T WORK, it goes in a weird state after the first setText(), though sometimes all 3 setText() work OK.
                    Log.i("BillingInfo-", "BillingClientStateListener-Setting Hard code price");
                    btn100.setText("₹40.00");
                    btn250.setText("₹50.00");
                    btn700.setText("₹60.00");
                    Log.i("BillingInfo-", "BillingClientStateListener- DONE Setting Hard code price");
                    //--<--


                    // The BillingClient is ready. 
//Temporarily commented LoadSKUs as the issue is reprouced by calling button setText() from this method itself
                    //LoadSKUsFromPlayConsole();
                }
                else{
                    Log.i("BillingInfo-", "Billing Client connection failed");
                 //   Toast.makeText(getApplicationContext(), "SKU Load failed! - Response Code:" + String.valueOf(responseCode), Toast.LENGTH_SHORT).show();

                }
            }

            @Override
            public void onBillingServiceDisconnected() {
                // Try to restart the connection on the next request to
                // Google Play by calling the startConnection() method.
                Log.i("BillingInfo-", "Service Disconnected");
                StartBillingConnection();
            }
        });
    }

LogCat

2021-08-13 12:42:44.290 590-590/com.kingsprolabs.puzzlify I/BillingInfo-: OnCreate: Setting Hard code price
2021-08-13 12:42:44.290 590-590/com.kingsprolabs.puzzlify I/BillingInfo-:  OnCreate: DONE Setting Hard code price
2021-08-13 12:42:44.291 590-590/com.kingsprolabs.puzzlify I/BillingInfo-: Billing Client Starting
2021-08-13 12:42:45.105 590-780/com.kingsprolabs.puzzlify I/BillingInfo-: Billing Client connected
2021-08-13 12:42:45.106 590-780/com.kingsprolabs.puzzlify I/BillingInfo-: BillingClientStateListener-Setting Hard code price

Answer 1

您需要从主线程更新 UI。

解决方案代码：将这个写在onBillingSetupFinished中

 try {
        requireActivity().runOnUiThread(new Runnable() {
            @Override
            public void run() {
                btn100.setText("₹40.00");
                btn250.setText("₹50.00");
                btn700.setText("₹60.00");
            }
        });
    } catch (Exception e) {
        e.printStackTrace();
    }