title: Calling another C++ method from jni method in ndk
body: <p>First, I have a JNIEXPORT method look like this:</p>
  
  <pre><code>  JNIEXPORT void JNICALL Java_com_app_osap_Native_nativeProcessImage(JNIEnv *env, jobject thiz, jstring imagePath){
    // ...
     handle(data);
   }
  </code></pre>
  
  <p>Then I write another method in the same cpp file:</p>
  
  <pre><code> void handle(int data[]){
  
   }
  </code></pre>
  
  <p>But I get this error when compile source code:</p>
  
  <pre><code>   'handle' was not declared in this scope
  </code></pre>
  
  <p>Please tell me what my problem is and how I can solve it. <br>Thanks in advance!</p>