我正在我的应用程序中使用指纹传感器。我知道 api 可用于棉花糖及以上操作系统。因此,在我的类中运行时,我正在动态检查 sdk 版本。
即使是指纹代码不执行,我也在 4.0 android 操作系统上面临以下异常,而 5.0 及更高版本也是如此。
**java.lang.VerifyError: com/cloudzon/gratzeez1/GiveGratuityActivity
at java.lang.Class.newInstanceImpl(Native Method)
at java.lang.Class.newInstance(Class.java:1215)
at android.app.Instrumentation.newActivity(Instrumentation.java:1061)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2265)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2417)
at android.app.ActivityThread.access$800(ActivityThread.java:151)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1342)
at android.os.Handler.dispatchMessage(Handler.java:110)
at android.os.Looper.loop(Looper.java:193)
at android.app.ActivityThread.main(ActivityThread.java:5322)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:829)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:645)
at dalvik.system.NativeStart.main(Native Method)**
我发现由于我的班级中的代码,我遇到了这个问题。
public boolean cipherInit() {
try {
cipher = Cipher.getInstance(KeyProperties.KEY_ALGORITHM_AES + "/" + KeyProperties.BLOCK_MODE_CBC + "/" + KeyProperties.ENCRYPTION_PADDING_PKCS7);
} catch (NoSuchAlgorithmException | NoSuchPaddingException e) {
throw new RuntimeException("Failed to get Cipher", e);
}
try {
keyStore.load(null);
SecretKey key = (SecretKey) keyStore.getKey(KEY_NAME,
null);
cipher.init(Cipher.ENCRYPT_MODE, key);
return true;
} catch (KeyPermanentlyInvalidatedException e) {
return false;
} catch (KeyStoreException | CertificateException | UnrecoverableKeyException | IOException | NoSuchAlgorithmException | InvalidKeyException e) {
throw new RuntimeException("Failed to init Cipher", e);
}
}
遇到了这个问题,另一个答案让我走上了正确的轨道;如何在较低平台版本中使用不受支持的例外
我将该方法更改为;
public boolean cipherInit() {
try {
cipher = Cipher.getInstance(KeyProperties.KEY_ALGORITHM_AES + "/" + KeyProperties.BLOCK_MODE_CBC + "/" + KeyProperties.ENCRYPTION_PADDING_PKCS7);
} catch (NoSuchAlgorithmException | NoSuchPaddingException e) {
throw new RuntimeException("Failed to get Cipher", e);
}
try {
keyStore.load(null);
SecretKey key = (SecretKey) keyStore.getKey(KEY_NAME, null);
cipher.init(Cipher.ENCRYPT_MODE, key);
return true;
} catch (Exception e) {
if(e instanceof KeyPermanentlyInvalidatedException)
return false;
else if(e instanceof KeyStoreException|e instanceof CertificateException|e instanceof UnrecoverableKeyException|e instanceof IOException|e instanceof NoSuchAlgorithmException|e instanceof InvalidKeyException)
throw new RuntimeException("Failed to init Cipher",e);
}
return false;
}
出于某种原因,将 KeyPermanentlyInvalidatedException 的 catch 块从 (KeyPermanentlyInvalidatedException e) 更改为 (e instanceof KeyPermanentlyInvalidatedException) 似乎可以解决此问题。
我只是通过更改捕获异常块来解决它。KeyPermanentlyInvalidatedException
是InvalidKeyException
的子类,如果我们使用KeyPermanentlyInvalidatedException
,我们会得到验证错误。
catch (KeyPermanentlyInvalidatedException e) {
(...)
}
请改用 InvalidKeyException
catch (InvalidKeyException e) {
(...)
}
@opt05答案可以帮助我解决问题,但我不喜欢他使用instance of
的方法。