title: Huawei Account Kit not working, how to implement?
body: <p>trying to implement Account Kit into our app and it is not working.</p>
  <p>Using com.huawei.hms:hwid:5.0.3.301 and on signin, blank activity is shown.  Hitting back button from this blank activity, log would show onActivityResult 1002 0.</p>
  <p>Tried building the demo project from <a href="https://github.com/HMS-Core/huawei-account-demo" rel="nofollow noreferrer">https://github.com/HMS-Core/huawei-account-demo</a>.  It is the same thing, clicking on login nothing shows, clicking back button would show signin failed.</p>
  <p>What could be the issue?</p>
  <p>#UPDATE:
  ags file was missing from demo, hence the blank activity.  Adding the AGS file fixed it.</p>
  <p>After verifying that the native android SDK build does work on my device, continued trying to implement on Unity.</p>
  <p>Downloaded 4.0.4.300 AccountSDK with 4.0.4.301 Core. Ran the APK and the following error occured:</p>
  <pre><code>     Caused by: android.content.ActivityNotFoundException: Unable to find explicit activity class {com.test.test.huawei/com.huawei.hms.activity.BridgeActivity}; have you declared this activity in your AndroidManifest.xml?
          at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1950)
          at android.app.Instrumentation.execStartActivity(Instrumentation.java:1622)
          at android.app.Activity.startActivityForResult(Activity.java:4564)
          at android.app.Activity.startActivityForResult(Activity.java:4522)
          at android.app.Activity.startActivity(Activity.java:4883)
          at android.app.Activity.startActivity(Activity.java:4851)
          at com.huawei.hms.adapter.AvailableAdapter.startResolution(AvailableAdapter.java:155)
          at com.huawei.hms.hwid.a.a.a(HmsAPKVersionCheckUtil.java:46)
          at com.huawei.hms.hwid.internal.ui.activity.HwIdSignInHubActivity.a(HwIdSignInHubActivity.java:212)
          at com.huawei.hms.hwid.internal.ui.activity.HwIdSignInHubActivity.onCreate(HwIdSignInHubActivity.java:106)
          at android.app.Activity.performCreate(Activity.java:7174)
          at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1220)
          at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2908)
          at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3030) 
          at android.app.ActivityThread.-wrap11(Unknown Source:0) 
          at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1696) 
          at android.os.Handler.dispatchMessage(Handler.java:105) 
          at android.os.Looper.loop(Looper.java:164) 
          at android.app.ActivityThread.main(ActivityThread.java:6938) 
          at java.lang.reflect.Method.invoke(Native Method) 
          at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:327) 
          at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1374) 
  </code></pre>
  <p>So then I copied the bridge activity from the HMSSdkUI's manifest into my manifest and the the app built:</p>
  <pre><code>        &lt;activity
              android:name=&quot;com.huawei.hms.activity.BridgeActivity&quot;
              android:configChanges=&quot;orientation|locale|layoutDirection|fontScale|screenSize|smallestScreenSize|screenLayout&quot;
              android:excludeFromRecents=&quot;true&quot;
              android:exported=&quot;false&quot;
              android:hardwareAccelerated=&quot;true&quot;
              android:screenOrientation=&quot;behind&quot;
              android:theme=&quot;@android:style/Theme.Translucent&quot; &gt;
              &lt;meta-data
                  android:name=&quot;hwc-theme&quot;
                  android:value=&quot;androidhwext:style/Theme.Emui.Translucent&quot; /&gt;
          &lt;/activity&gt;
  </code></pre>
  <p>However, requesting sign in still results in blank activity.  Here is the log:  I am suspecting it has to do with the BridgeActivity??</p>
  <pre><code>2020-10-09 16:02:17.063 20598-20598/? I/HMSSDK_HMSBIInitializer: Builder-&gt;biInitFlag :false
  2020-10-09 16:02:17.064 20598-20598/? I/HMSSDK_HMSBIInitializer: Builder-&gt;biSetting :false
  2020-10-09 16:02:17.065 20598-20598/? I/HMSSDK_CountryCodeBean: getCountryCode get country code from SIM_COUNTRY
  2020-10-09 16:02:17.068 20598-20598/? I/HMSSDK_CountryCodeBean: getCountryCode get country code from SIM_COUNTRY
  2020-10-09 16:02:17.070 20598-20598/? W/NetworkKit_AbstractLocalManager: 20598-20598|null|com.huawei.hms.framework.network.grs.local.a|a|16|addresses not found by routeby in local config{com.huawei.cloud.opensdkhianalytics}
  2020-10-09 16:02:17.072 20598-23397/? E/HMSSDK_HMSBIInitializer: get grs failed, the errorcode is -3
  2020-10-09 16:02:17.075 1565-3643/? I/ActivityManager: START u0 {act=com.huawei.hms.jos.signIn typ=null flg=0x0 cmp=ComponentInfo{com.test.test.huawei/com.huawei.hms.hwid.internal.ui.activity.HwIdSignInHubActivity}} from uid 10935
  2020-10-09 16:02:17.100 1565-2477/? D/GameManagerService: handleForegroundChange(). pkgName: com.test.test.huawei, clsName: com.huawei.hms.hwid.internal.ui.activity.HwIdSignInHubActivity,FgActivityName:com.test.test.huawei/com.huawei.hms.hwid.internal.ui.activity.HwIdSignInHubActivity
  2020-10-09 16:02:17.140 20598-20598/? I/HMSSDK_[HUAWEIIDSDK]HwIdSignInClientHub: onCreate
  2020-10-09 16:02:17.143 20598-20598/? I/HMSSDK_HiAnalyticsUtil: not ChinaROM
  2020-10-09 16:02:17.144 20598-20598/? I/HMSSDK_HiAnalyticsUtil: Get OOBE failed
  2020-10-09 16:02:17.144 20598-20598/? I/HMSSDK_HmsAPKVersionCheckUtil: ====== HMSSDK version: 40004300 ======
  2020-10-09 16:02:17.144 20598-20598/? I/HMSSDK_HmsAPKVersionCheckUtil: check minVersion:30000000
  2020-10-09 16:02:17.148 20598-20598/? E/HMSSDK_X509CertUtil: exception:updatesdkcas.bks
  2020-10-09 16:02:17.148 20598-20598/? E/HMSSDK_X509CertUtil: rootCert is null,verify failed 
  2020-10-09 16:02:17.149 20598-20598/? E/HMSSDK_HMSPackageManager: failed to verify cert chain
  2020-10-09 16:02:17.149 20598-20598/? E/HMSSDK_HMSPackageManager: checkSinger failed
  2020-10-09 16:02:17.149 20598-20598/? E/HMSSDK_HMSPackageManager: Failed to find HMS apk
  2020-10-09 16:02:17.150 20598-20598/? I/HMSSDK_AvailableAdapter: HMS is not installed
  2020-10-09 16:02:17.151 20598-20598/? I/HMSSDK_AvailableAdapter: enter 4.0 HmsCore upgrade process
  2020-10-09 16:02:17.151 20598-20598/? I/HMSSDK_AvailableAdapter: Start to resolution for the 1st time.
  2020-10-09 16:02:17.151 20598-20598/? I/HMSSDK_AvailableAdapter: startResolution
  2020-10-09 16:02:17.156 1565-4083/? I/ActivityManager: START u0 {act=null typ=null flg=0x0 cmp=ComponentInfo{com.test.test.huawei/com.huawei.hms.activity.BridgeActivity}} from uid 10935
  2020-10-09 16:02:17.184 1565-4083/? V/WindowManager: Relayout Window{fd32694 u0 com.test.test.huawei/com.huawei.hms.hwid.internal.ui.activity.HwIdSignInHubActivity}: viewVisibility=0 req=720x1336 WM.LayoutParams{(0,0)(fillxfill) sim=#120 ty=1 fl=#1810100 pfl=0x1020000 fmt=-2 wanim=0x1030000 vsysui=0x410 needsMenuKey=2 colorMode=0 naviIconColor=0}
  2020-10-09 16:02:17.185 655-655/? I/SurfaceFlinger: id=14264 createSurf (720x1480),1 flag=4, com.test.test.huawei/com.huawei.hms.hwid.internal.ui.activity.HwIdSignInHubActivity#0
  2020-10-09 16:02:17.231 1565-2477/? D/GameManagerService: handleForegroundChange(). pkgName: com.test.test.huawei, clsName: com.huawei.hms.activity.BridgeActivity,FgActivityName:com.test.test.huawei/com.huawei.hms.activity.BridgeActivity
  2020-10-09 16:02:17.239 1565-3643/? V/WindowManager: finishDrawingLocked: mDrawState=COMMIT_DRAW_PENDING Window{fd32694 u0 com.test.test.huawei/com.huawei.hms.hwid.internal.ui.activity.HwIdSignInHubActivity} in Surface(name=com.test.test.huawei/com.huawei.hms.hwid.internal.ui.activity.HwIdSignInHubActivity)
  2020-10-09 16:02:17.279 20598-20598/? E/HMSSDK_BridgeActivity: Run time Exception.String resource ID #0x0
  2020-10-09 16:02:17.279 20598-20598/? I/HMSSDK_BridgeActivity: Enter finish.
  2020-10-09 16:02:17.301 1565-2477/? D/GameManagerService: handleForegroundChange(). pkgName: com.test.test.huawei, clsName: com.huawei.hms.hwid.internal.ui.activity.HwIdSignInHubActivity,FgActivityName:com.test.test.huawei/com.huawei.hms.hwid.internal.ui.activity.HwIdSignInHubActivity
  2020-10-09 16:02:17.316 1565-8502/? V/WindowManager: Relayout Window{fd32694 u0 com.test.test.huawei/com.huawei.hms.hwid.internal.ui.activity.HwIdSignInHubActivity}: viewVisibility=0 req=720x1384 WM.LayoutParams{(0,0)(fillxfill) sim=#120 ty=1 fl=#1810100 pfl=0x1020000 fmt=-2 wanim=0x1030000 vsysui=0x410 needsMenuKey=2 colorMode=0 naviIconColor=0}
  2020-10-09 16:02:17.334 20598-20598/? I/HMSSDK_UpdateAdapter: onBridgeActivityDestroy
  </code></pre>