Google pay默认支付（payment)应用之二 -TpHceService默认被disable原因

根据上篇文章《GooglePay默认支付（payment)应用 之一》，

我们提到在GmsCore（Google play services）核心套件里边声明的TpHceService开机后发现被disabled。

那么原因是什么呢？

一起来看看吧~

由于GmsCore包太大，无法简单反编译，只要通过本地有的Frameworks代码log来解析这个APK，指着得出一些结论。

通过debug， 发现：

04-02 02:13:23.932897   999  1186 I ActivityManager: Start proc 2377:com.google.android.gms.persistent/u0a92 for broadcast {com.google.android.gms/com.google.android.gms.chimera.GmsIntentOperationService$PersistentTrustedReceiver}

04-02 02:13:32.777532   640   691 D StagefrightMetadataRetriever: setDataSource fd=9 (/product/media/audio/notifications/Antimony.ogg), offset=0, length=27849
04-02 02:13:32.777632  2377  2989 D ApplicationPackageManager:  xdt SetComponentEnabledSettings: cmpName:ComponentInfo{com.google.android.gms/com.google.android.gms.tapandpay.hce.service.TpHceService}, newState:2, flags:1
04-02 02:13:32.778354  2377  2989 D ApplicationPackageManager: xdtjava.lang.Throwable
04-02 02:13:32.778354  2377  2989 D ApplicationPackageManager: 	at android.app.ApplicationPackageManager.setComponentEnabledSetting(ApplicationPackageManager.java:2554)
04-02 02:13:32.778354  2377  2989 D ApplicationPackageManager: 	at asbd.a(:com.google.android.gms@200414037@20.04.14 (120400-294335909):3)
04-02 02:13:32.778354  2377  2989 D ApplicationPackageManager: 	at com.google.android.gms.tapandpay.init.TapAndPayInitIntentOperation.onHandleIntent(:com.google.android.gms@200414037@20.04.14 (120400-294335909):3)
04-02 02:13:32.778354  2377  2989 D ApplicationPackageManager: 	at com.google.android.chimera.IntentOperation.onHandleIntent(:com.google.android.gms@200414037@20.04.14 (120400-294335909):2)
04-02 02:13:32.778354  2377  2989 D ApplicationPackageManager: 	at qkg.onHandleIntent(:com.google.android.gms@200414037@20.04.14 (120400-294335909):4)
04-02 02:13:32.778354  2377  2989 D ApplicationPackageManager: 	at dsr.run(:com.google.android.gms@200414037@20.04.14 (120400-294335909):7)
04-02 02:13:32.778354  2377  2989 D ApplicationPackageManager: 	at dsq.run(:com.google.android.gms@200414037@20.04.14 (120400-294335909):7)
04-02 02:13:32.778354  2377  2989 D ApplicationPackageManager: 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
04-02 02:13:32.778354  2377  2989 D ApplicationPackageManager: 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
04-02 02:13:32.778354  2377  2989 D ApplicationPackageManager: 	at java.lang.Thread.run(Thread.java:919)

04-02 02:13:32.781648   999  2861 D PackageManager :  packageName: com.google.android.gms className: com.google.android.gms.tapandpay.hce.service.TpHceService newState: 2 CallingUid: 10092 CallingPid: 2377,CallingPackage:null, userId0, flags:1
04-02 02:13:32.786797   999  2861 D PackageManager: Instant App installer not found with android.intent.action.INSTALL_INSTANT_APP_PACKAGE
04-02 02:13:32.786933   999  2861 D PackageManager: Clear ephemeral installer activity
04-02 02:13:32.795865   999  1176 D AppOps  : checkOperation: uid reject #4 for code 0 uid 1001 package com.mediatek.ims
04-02 02:13:32.796189   999  1176 W Looper  : Drained
04-02 02:13:32.836054   999  1200 I ActivityManager:   Force stopping service ServiceRecord{2484b2e u0 com.google.android.gms/.tapandpay.hce.service.TpHceService}

由这句可知，

ApplicationPackageManager:     at com.google.android.gms.tapandpay.init.TapAndPayInitIntentOperation.onHandleIntent(:com.google.android.gms@200414037@20.04.14 (120400-294335909):3)

这个是在Gms包里边代码逻辑 通过调用Framework, PackageManager setComponentEnabledSetting API将TpHceService disable.

/* compiled from: :com.google.android.gms@200414037@20.04.14 (120400-294335909) */
/* renamed from: asbd */
public final class asbd {
    static final AtomicBoolean a = new AtomicBoolean(false);
    private static final sqv b = sqv.a(sfo.aA);

    public static void a(Context context) {
        try {
            if (arrk.c(context)) {
                if (asbd.c(context)) {
                    asbd.e(context);
                    return;
                }
            }
            if (asbd.d(context)) { 
                asbd.f(context);
                if (arqy.f(context)) {
                    ((DevicePolicyManager) context.getSystemService("device_policy")).setPasswordQuality(arqy.a(context), 0);
                }
                new asoh(context).c.edit().putBoolean("tap_and_pay_enabled", true).apply();
                asbd.e(context);
                return;
            }
            context.getPackageManager().setComponentEnabledSetting(new ComponentName(context, "com.google.android.gms.tapandpay.hce.service.TpHceService"), 2, 1); //  执行这个将在不杀死进程的情况下disable service.
        } catch (RuntimeException e) {
            context = e;
            ((bmiw) ((bmiw) ((bmiw) b.b()).a(context)).a("asbd", "a", 74, ":com.google.android.gms@200414037@20.04.14 (120400-294335909)")).a("Error initializing Google Pay");
        } catch (arsr e2) {
            context = e2;
            ((bmiw) ((bmiw) ((bmiw) b.b()).a(context)).a("asbd", "a", 74, ":com.google.android.gms@200414037@20.04.14 (120400-294335909)")).a("Error initializing Google Pay");
        }
    }

有上段反编译代码，结果再明显不过了。

属于GmsCore内部动态逻辑决定了TpHceService这个component的enable状态。

至于具体的判断条件，

还是没有找到这一根本条件，混淆的太过严重。