java.lang.ClassCastException：LinkedTreeMap 无法转换为 ProductDetails$OneTimePurchaseOfferDetails

Question

我正在使用应用内计费 (

com.android.billingclient:[email protected]:2

) lib 在 Android 中进行付款。

计费库：提供产品详细信息，如

ProductDetails

响应 QueryInventory。

我使用

Gson

Lib 将这些产品详细信息作为 JSON 字符串存储在会话中。

JSON 字符串

{
      "zza": "{\"productId\":\"com.abc.xyz\",\"type\":\"inapp\",\"title\":\"One-Time Purchase \",\"name\":\"One-Time Purchase\",\"description\":\"One-Time Purchase and Get premium content\",\"localizedIn\":[\"en-US\"],\"skuDetailsToken\":\"AEuhp4L1zoq6cjMTf8R2UF1nkG69D_MsfpoBqHySShV1u0cU5_NuObiMwl\",\"oneTimePurchaseOfferDetails\":{\"priceAmountMicros\":2900000000,\"priceCurrencyCode\":\"INR\",\"formattedPrice\":\"₹2,900.00\"}}",
      "zzb": {
        "nameValuePairs": {
          "productId": "com.abc.xyz",
          "type": "inapp",
          "title": "One-Time Purchase",
          "name": "One-Time Purchase",
          "description": "One-Time Purchase and Get premium content",
          "localizedIn": {
            "values": [
              "en-US"
            ]
          },
          "skuDetailsToken": "AEuhp4L1zoq6cjMTf8R2UF1nkG69D_MsfpoBqHySShV1u0cU5_NuObiMwl",
          "oneTimePurchaseOfferDetails": {
            "nameValuePairs": {
              "priceAmountMicros": 2900000000,
              "priceCurrencyCode": "INR",
              "formattedPrice": "₹2,900.00"
            }
          }
        }
      },
      "zzc": "com.abc.xyz",
      "zzd": "inapp",
      "zze": "One-Time Purchase",
      "zzf": "One-Time Purchase",
      "zzg": "One-Time Purchase and Get premium content",
      "zzh": "AEuhp4L1zoq6cjMTf8R2UF1nkG69D_MsfpoBqHySShV1u0cU5_NuObiMwl",
      "zzi": "",
      "zzj": "",
      "zzk": "",
      "zzm": [
        {
          "zza": "₹2,900.00",
          "zzb": 2900000000,
          "zzc": "INR",
          "zzd": "",
          "zze": "",
          "zzf": []
        }
      ]
    }

现在，我使用

ProductDetails

lib 从 JSON 创建了相同的

Gson

对象。

但是我在尝试获取

LinkedTreeMap

信息时遇到

oneTimePurchaseOfferDetails

转换异常。

产品详情.class

package com.android.billingclient.api;

import android.text.TextUtils;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import com.google.android.gms.internal.play_billing.zzu;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.util.ArrayList;
import java.util.List;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

public final class ProductDetails {
    private final String zza;
    private final JSONObject zzb;
    private final String zzc;
    private final String zzd;
    private final String zze;
    private final String zzf;
    private final String zzg;
    private final String zzh;
    private final String zzi;
    private final String zzj;
    @Nullable
    private final String zzk;
    @Nullable
    private final List zzl;
    @Nullable
    private final List zzm;

    public int hashCode() {
        return this.zza.hashCode();
    }

    @Nullable
    public ProductDetails.OneTimePurchaseOfferDetails getOneTimePurchaseOfferDetails() {
        List var1 = this.zzm;
        return var1 != null && !var1.isEmpty() ? (ProductDetails.OneTimePurchaseOfferDetails)this.zzm.get(0) : null;
    }

    @NonNull
    public String getDescription() {
        return this.zzg;
    }

    @NonNull
    public String getName() {
        return this.zzf;
    }

    @NonNull
    public String getProductId() {
        return this.zzc;
    }

    @NonNull
    public String getProductType() {
        return this.zzd;
    }

    @NonNull
    public String getTitle() {
        return this.zze;
    }

    @NonNull
    public String toString() {
        String var1 = this.zza;
        String var2 = this.zzb.toString();
        String var3 = this.zzc;
        String var4 = this.zzd;
        String var5 = this.zze;
        String var6 = this.zzh;
        String var10000 = String.valueOf(this.zzl);
        StringBuilder var10001 = new StringBuilder();
        var10001.append("ProductDetails{jsonString='");
        var10001.append(var1);
        var10001.append("', parsedJson=");
        var10001.append(var2);
        var10001.append(", productId='");
        var10001.append(var3);
        var10001.append("', productType='");
        var10001.append(var4);
        var10001.append("', title='");
        var10001.append(var5);
        var10001.append("', productDetailsToken='");
        var10001.append(var6);
        var10001.append("', subscriptionOfferDetails=");
        var10001.append(var10000);
        var10001.append("}");
        return var10001.toString();
    }

    @Nullable
    public List<ProductDetails.SubscriptionOfferDetails> getSubscriptionOfferDetails() {
        return this.zzl;
    }

    ProductDetails(String var1) throws JSONException {
        this.zza = var1;
        this.zzb = new JSONObject(this.zza);
        this.zzc = this.zzb.optString("productId");
        this.zzd = this.zzb.optString("type");
        if (TextUtils.isEmpty(this.zzc)) {
            throw new IllegalArgumentException("Product id cannot be empty.");
        } else if (TextUtils.isEmpty(this.zzd)) {
            throw new IllegalArgumentException("Product type cannot be empty.");
        } else {
            this.zze = this.zzb.optString("title");
            this.zzf = this.zzb.optString("name");
            this.zzg = this.zzb.optString("description");
            this.zzi = this.zzb.optString("packageDisplayName");
            this.zzj = this.zzb.optString("iconUrl");
            this.zzh = this.zzb.optString("skuDetailsToken");
            this.zzk = this.zzb.optString("serializedDocid");
            JSONArray var2 = this.zzb.optJSONArray("subscriptionOfferDetails");
            ArrayList var3;
            int var4;
            if (var2 != null) {
                var3 = new ArrayList();

                for(var4 = 0; var4 < var2.length(); ++var4) {
                    var3.add(new ProductDetails.SubscriptionOfferDetails(var2.getJSONObject(var4)));
                }

                this.zzl = var3;
            } else {
                ArrayList var5;
                if (!this.zzd.equals("subs") && !this.zzd.equals("play_pass_subs")) {
                    var5 = null;
                } else {
                    var5 = new ArrayList();
                }

                this.zzl = var5;
            }

            JSONObject var6 = this.zzb.optJSONObject("oneTimePurchaseOfferDetails");
            var2 = this.zzb.optJSONArray("oneTimePurchaseOfferDetailsList");
            var3 = new ArrayList();
            if (var2 == null) {
                if (var6 != null) {
                    var3.add(new ProductDetails.OneTimePurchaseOfferDetails(var6));
                    this.zzm = var3;
                } else {
                    this.zzm = null;
                }
            } else {
                for(var4 = 0; var4 < var2.length(); ++var4) {
                    var3.add(new ProductDetails.OneTimePurchaseOfferDetails(var2.getJSONObject(var4)));
                }

                this.zzm = var3;
            }
        }
    }

    public boolean equals(@Nullable Object o) {
        if (this == o) {
            return true;
        } else if (!(o instanceof ProductDetails)) {
            return false;
        } else {
            ProductDetails o1 = (ProductDetails)o;
            return TextUtils.equals(this.zza, o1.zza);
        }
    }

    @NonNull
    public final String zza() {
        return this.zzb.optString("packageName");
    }

    final String zzb() {
        return this.zzh;
    }

    @Nullable
    public String zzc() {
        return this.zzk;
    }

    public static final class SubscriptionOfferDetails {
        private final String zza;
        @Nullable
        private final String zzb;
        private final String zzc;
        private final ProductDetails.PricingPhases zzd;
        private final List zze;
        @Nullable
        private final zzbf zzf;

        @NonNull
        public ProductDetails.PricingPhases getPricingPhases() {
            return this.zzd;
        }

        @NonNull
        public String getBasePlanId() {
            return this.zza;
        }

        @Nullable
        public String getOfferId() {
            return this.zzb;
        }

        @NonNull
        public String getOfferToken() {
            return this.zzc;
        }

        @NonNull
        public List<String> getOfferTags() {
            return this.zze;
        }

        SubscriptionOfferDetails(JSONObject var1) throws JSONException {
            this.zza = var1.optString("basePlanId");
            String var2 = var1.optString("offerId");
            if (var2.isEmpty()) {
                var2 = null;
            }

            this.zzb = var2;
            this.zzc = var1.getString("offerIdToken");
            var2 = "pricingPhases";
            this.zzd = new ProductDetails.PricingPhases(var1.getJSONArray(var2));
            JSONObject var5 = var1.optJSONObject("installmentPlanDetails");
            zzbf var6;
            if (var5 == null) {
                var6 = null;
            } else {
                var6 = new zzbf(var5);
            }

            this.zzf = var6;
            ArrayList var7 = new ArrayList();
            JSONArray var3 = var1.optJSONArray("offerTags");
            if (var3 != null) {
                for(int var4 = 0; var4 < var3.length(); ++var4) {
                    var7.add(var3.getString(var4));
                }
            }

            this.zze = var7;
        }
    }

    public static final class OneTimePurchaseOfferDetails {
        private final String zza;
        private final long zzb;
        private final String zzc;
        private final String zzd;
        private final String zze;
        private final zzu zzf;
        @Nullable
        private final zzbg zzg;
        @Nullable
        private final zzbi zzh;
        @Nullable
        private final zzbh zzi;

        public long getPriceAmountMicros() {
            return this.zzb;
        }

        @NonNull
        public String getFormattedPrice() {
            return this.zza;
        }

        @NonNull
        public String getPriceCurrencyCode() {
            return this.zzc;
        }

        OneTimePurchaseOfferDetails(JSONObject var1) throws JSONException {
            this.zza = var1.optString("formattedPrice");
            this.zzb = var1.optLong("priceAmountMicros");
            this.zzc = var1.optString("priceCurrencyCode");
            this.zzd = var1.optString("offerIdToken");
            this.zze = var1.optString("offerId");
            var1.optInt("offerType");
            JSONArray var3 = var1.optJSONArray("offerTags");
            ArrayList var4 = new ArrayList();
            if (var3 != null) {
                for(int var2 = 0; var2 < var3.length(); ++var2) {
                    var4.add(var3.getString(var2));
                }
            }

            this.zzf = zzu.zzj(var4);
            var1.optLong("fullPriceMicros");
            JSONObject var6 = var1.optJSONObject("discountDisplayInfo");
            zzbg var7;
            if (var6 == null) {
                var7 = null;
            } else {
                var7 = new zzbg(var6);
            }

            this.zzg = var7;
            var6 = var1.optJSONObject("validTimeWindow");
            zzbi var8;
            if (var6 == null) {
                var8 = null;
            } else {
                var8 = new zzbi(var6);
            }

            this.zzh = var8;
            var1 = var1.optJSONObject("limitedQuantityInfo");
            zzbh var5;
            if (var1 == null) {
                var5 = null;
            } else {
                var5 = new zzbh(var1);
            }

            this.zzi = var5;
        }

        @NonNull
        public final String zza() {
            return this.zzd;
        }
    }

    @Retention(RetentionPolicy.SOURCE)
    public @interface RecurrenceMode {
        int INFINITE_RECURRING = 1;
        int FINITE_RECURRING = 2;
        int NON_RECURRING = 3;
    }

    public static final class PricingPhase {
        private final String zza;
        private final long zzb;
        private final String zzc;
        private final String zzd;
        private final int zze;
        private final int zzf;

        public int getBillingCycleCount() {
            return this.zze;
        }

        public int getRecurrenceMode() {
            return this.zzf;
        }

        public long getPriceAmountMicros() {
            return this.zzb;
        }

        @NonNull
        public String getBillingPeriod() {
            return this.zzd;
        }

        @NonNull
        public String getFormattedPrice() {
            return this.zza;
        }

        @NonNull
        public String getPriceCurrencyCode() {
            return this.zzc;
        }

        PricingPhase(JSONObject var1) {
            this.zzd = var1.optString("billingPeriod");
            this.zzc = var1.optString("priceCurrencyCode");
            this.zza = var1.optString("formattedPrice");
            this.zzb = var1.optLong("priceAmountMicros");
            this.zzf = var1.optInt("recurrenceMode");
            this.zze = var1.optInt("billingCycleCount");
        }
    }

    public static class PricingPhases {
        private final List zza;

        @NonNull
        public List<ProductDetails.PricingPhase> getPricingPhaseList() {
            return this.zza;
        }

        PricingPhases(JSONArray var1) {
            ArrayList var3 = new ArrayList();
            if (var1 != null) {
                for(int var2 = 0; var2 < var1.length(); ++var2) {
                    JSONObject var4 = var1.optJSONObject(var2);
                    if (var4 != null) {
                        var3.add(new ProductDetails.PricingPhase(var4));
                    }
                }
            }

            this.zza = var3;
        }
    }
}

Answer 1

到目前为止，我所看到的是在整个代码片段中一次又一次地使用类似的变量名称。看到问题出在哪里会让人感到困惑，但如果您只想在其中包含单个对象类型，我建议您在定义的列表中使用泛型。 例如：将 zzm 定义为

List<ProductDetails.OneTimePurchaseOfferDetails> zzm;

而不是：

List zzm;

这将确保 getOneTimePurchaseOfferDetails() 方法中的 this.zzm.get(0) 只会获取 ProductDetails.OneTimePurchaseOfferDetails 类型的对象，并且如果您有机会尝试添加不同的对象有点反对该列表，您根本无法这样做。

如果仍然不起作用，请告诉我。