我有一个应用程序,提供使用指纹进行身份验证。
在询问用户是否要启用它之前,我先验证它是否可用,并通过以下方式完成:
FingerprintManager fingerprintManager = context.getSystemService(FingerprintManager.class);
return fingerprintManager.isHardwareDetected() && fingerprintManager.hasEnrolledFingerprints();
FingerprintManager的两个方法都有注释:
@RequiresPermission(USE_FINGERPRINT)
但是,正如在http://developer.android.com/guide/topics/security/normal-permissions.html中指定的,USE_FINGERPRINT权限是一个普通权限。这意味着,一旦您在AndroidManifest.xml文件中声明了该权限(我们确实这样做了,该功能已经过测试并在测试设备上工作),您就不必在运行时检查它。
正如Fabric crash报告所报告的那样,现在发生的情况是,一些用户在调用fingerprintManager.isHardwareDetected()时崩溃,原因是:
java.lang.SecurityException: Must have android.permission.USE_FINGERPRINT permission.: Neither user 10150 nor current process has android.permission.USE_FINGERPRINT.
到目前为止,已经有两个用户,都是棉花糖(Android6.0),都没有扎根(根据Fabric的报道),设备是LG G4 Stylus(LG H635)和Sony Xperia Z5 Premium (索尼E6853)。
有没有关于这是如何实现的解释,以及可能的修复方法?
如果这些用户不是在普通的Android上,我会说他们可以通过一个自定义的ROM功能来操纵应用程序的权限,比如CyanogenMod的Privacy Guard。但事实似乎并非如此。
堆栈跟踪为:
Fatal Exception: java.lang.RuntimeException: Unable to start activity ComponentInfo{MY.PACKAGE/MY.PACKAGE.MYACTIVITY}: java.lang.SecurityException: Must have android.permission.USE_FINGERPRINT permission.: Neither user 10150 nor current process has android.permission.USE_FINGERPRINT.
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2434)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2494)
at android.app.ActivityThread.access$900(ActivityThread.java:157)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1356)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5527)
at java.lang.reflect.Method.invoke(Method.java)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:730)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:620)
Caused by java.lang.SecurityException: Must have android.permission.USE_FINGERPRINT permission.: Neither user 10150 nor current process has android.permission.USE_FINGERPRINT.
at android.os.Parcel.readException(Parcel.java:1599)
at android.os.Parcel.readException(Parcel.java:1552)
at android.hardware.fingerprint.IFingerprintService$Stub$Proxy.isHardwareDetected(IFingerprintService.java:367)
at android.hardware.fingerprint.FingerprintManager.isHardwareDetected(FingerprintManager.java:642)
at MY.PACKAGE.MYACTIVITY.isSupported(MYACTIVITY.java:54)
at MY.PACKAGE.MYACTIVITY.onCreate(MYACTIVITY.java:38)
at android.app.Activity.performCreate(Activity.java:6272)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1108)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2387)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2494)
at android.app.ActivityThread.access$900(ActivityThread.java:157)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1356)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5527)
at java.lang.reflect.Method.invoke(Method.java)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:730)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:620)
https://stackoverflow.com/questions/36031092
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