Android JNI错误：带有布尔参数的调用函数会导致崩溃

Question

I'm Trying to call this JAVA function:

public String getPreferredLanguage(boolean withRegion)

With JNI GetMethodID , But i always get a crash, i tried a lot of variations about the function signature in the JNI section, but none seemed to be helping.

The JNI code:

methodID getPreferredLanguageMethod = env->GetMethodID(languageServiceClass, "getPreferredLanguage", "(Ljava/lang/Boolean;Z)Ljava/lang/String;");
    if (!getPreferredLanguageMethod) {
        TTLOGD("LanguageService::getPreferredLanguage: ERROR getPreferredLanguageMethod is null\n");
    }

The crash message:

JNI DETECTED ERROR IN APPLICATION: JNI CallObjectMethodV called with pending exception java.lang.NoSuchMethodError: no non-static method "Lcom/tabtale/mobile/acs/services/LanguageService;.getPreferredLanguage(Ljava/lang/Boolean;Z)Ljava/lang/String;"

Any idea what i'm doing wrong?

Answer 1

一遍又一遍地阅读此文档后，我发现了我的问题，这就是JNI函数应为的方式：

jmethodID getPreferredLanguageMethod = env->GetMethodID(languageServiceClass, "getPreferredLanguage", "(Z)Ljava/lang/String;");