Function SafeConvertToStdString

src/platform/android/JStringUtil.cpp:44–71

}

std::string SafeConvertToStdString(JNIEnv* env, jstring jText) {
  if (jText == nullptr) {
    return "";
  }
  std::string result;
  static Global<jclass> StringClass = env->FindClass("java/lang/String");
  static jmethodID GetBytesID =
      env->GetMethodID(StringClass.get(), "getBytes", "(Ljava/lang/String;)[B");
  auto encoding = env->NewStringUTF("utf-8");
  auto jBytes = (jbyteArray)env->CallObjectMethod(jText, GetBytesID, encoding);
  env->DeleteLocalRef(encoding);
  if (env->ExceptionCheck()) {
    env->ExceptionClear();
    return "";
  }
  if (jBytes == nullptr) {
    return "";
  }
  auto textLength = env->GetArrayLength(jBytes);
  if (textLength > 0) {
    char* bytes = new char[textLength];
    env->GetByteArrayRegion(jBytes, 0, textLength, (jbyte*)bytes);
    result = std::string(bytes, (unsigned)textLength);
    delete[] bytes;
  }
  env->DeleteLocalRef(jBytes);
  return result;
}
}  // namespace pag