Android VerifyError异常

Question

我在我的应用程序中使用指纹传感器.我知道api适用于棉花糖和OS以上.因此,在我的课程中运行时,我正在动态检查sdk版本.

即使是指纹不执行的代码我面临4.0 android os上的异常,而同样执行5.0及以上.

**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)**

我发现由于我班上的代码如下,我正面临着这个问题.

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);
    }
}

Answer 1

我也碰到了这个,另一个回答让我走上正轨; 如何在较低平台版本中使用不受支持的异常

我改变那个方法;

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;
}

将KeyPermanentlyInvalidatedException的catch块从(KeyPermanentlyInvalidatedException e)更改为(e instanceof KeyPermanentlyInvalidatedException)似乎由于某种原因修复了该问题.