The gesturelock's discuss from ddssingsong

gesturelock's Issues

发现一个内存泄露

FingerprintManagerCompat 和 FingerprintManagerCompatApi23 的 wrapCallback方法，，我改为callback弱引用，问题得到解决，如下：

private static FingerprintManager.AuthenticationCallback wrapCallback(AuthenticationCallback callback) {
        final WeakReference<AuthenticationCallback> callbackRef = new WeakReference<>(callback);
        return new FingerprintManager.AuthenticationCallback() {
            @Override
            public void onAuthenticationError(int errMsgId, CharSequence errString) {
                if (callbackRef.get() != null) {
                    callbackRef.get().onAuthenticationError(errMsgId, errString);
                }
            }

            @Override
            public void onAuthenticationHelp(int helpMsgId, CharSequence helpString) {
                if (callbackRef.get() != null) {
                    callbackRef.get().onAuthenticationHelp(helpMsgId, helpString);
                }
            }

            @Override
            public void onAuthenticationSucceeded(FingerprintManager.AuthenticationResult result) {
                if (callbackRef.get() != null) {
                    callbackRef.get().onAuthenticationSucceeded(new AuthenticationResultInternal(unwrapCryptoObject(result.getCryptoObject())));
                }
            }

            @Override
            public void onAuthenticationFailed() {
                if (callbackRef.get() != null) {
                    callbackRef.get().onAuthenticationFailed();
                }
            }
        };
    }

感谢作者奉献

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