C++ -> JAVA ,JNI warnig , app Crash

cocos2d-x C++
#1

i dont speak english well…

i need Phone Call.

so, add in org.cocos2dx.lib/Cocos2dxActivity.java

@ public void Calling(String number)
{
Intent intent = new Intent (Intent.ACTION_DIAL,Uri.parse(“tel:” + number));
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(intent);
}@

and
C++ file add in CCApplication_android.cpp

void CCApplication::Calling(const char* _number)
{
    JniMethodInfo methodInfo;
    *cocos2d::CCLog("start Calling");*
    if (! JniHelper::getMethodInfo(methodInfo,"org/cocos2dx/lib/Cocos2dxActivity", "Calling", "(Ljava/lang/String)V"))
    {
          CCLOG("%s %d: error to get methodInfo", __FILE__, __LINE__);
    }
    else
    {
      jstring stringArg1 = methodInfo.env->NewStringUTF(_number);
      methodInfo.env->CallVoidMethod(methodInfo.classID, methodInfo.methodID,stringArg1);
      methodInfo.env->DeleteLocalRef(stringArg1);
    }
}

i use it,

CCApplication::sharedApplication().Calling(m_phoneNumber);

//
but, app crash T_T

simulator LogCat error code;
CCLog(“start Calling”); work well!

04-02 19:35:34.380: D/cocos2d-x debug info(637): start Calling
04-02 19:35:34.380: W/dalvikvm(637): JNI WARNING: expected return type 'I'
04-02 19:35:34.380: W/dalvikvm(637):              calling Lorg/cocos2dx/lib/Cocos2dxActivity;.Calling (Ljava/lang/String)V)V
04-02 19:35:34.390: W/dalvikvm(637):              in Lorg/cocos2dx/lib/Cocos2dxRenderer;.nativeTouchesBegin:(IFF)V (CallStaticIntMethodV)
04-02 19:35:34.390: I/dalvikvm(637): "GLThread 80" prio=5 tid=13 NATIVE
04-02 19:35:34.390: I/dalvikvm(637):   | group="main" sCount=0 dsCount=0 obj=0x412aea58 self=0x1afff0
04-02 19:35:34.390: I/dalvikvm(637):   | sysTid=653 nice=0 sched=0/0 cgrp=default handle=1770560
04-02 19:35:34.400: I/dalvikvm(637):   | schedstat=( 8864835662 3598031144 646 ) utm=868 stm=18 core=0
04-02 19:35:34.400: I/dalvikvm(637):   at org.cocos2dx.lib.Cocos2dxRenderer.nativeTouchesBegin(Native Method)
04-02 19:35:34.400: I/dalvikvm(637):   at org.cocos2dx.lib.Cocos2dxRenderer.handleActionDown(Cocos2dxRenderer.java:74)
04-02 19:35:34.400: I/dalvikvm(637):   at org.cocos2dx.lib.Cocos2dxGLSurfaceView$7.run(Cocos2dxGLSurfaceView.java:308)
04-02 19:35:34.400: I/dalvikvm(637):   at android.opengl.GLSurfaceView$GLThread.guardedRun(GLSurfaceView.java:1424)
04-02 19:35:34.400: I/dalvikvm(637):   at android.opengl.GLSurfaceView$GLThread.run(GLSurfaceView.java:1216)
04-02 19:35:34.410: E/dalvikvm(637): VM aborting
04-02 19:35:34.410: A/libc(637): Fatal signal 11 (SIGSEGV) at 0xdeadd00d (code=1)@

What’s the problem?
Help me.

#2

JniHelper can only invoke static function. In your example, you want to invoke non static function, so it can not work.

#3

I tried this too, I invoked static method.

But I got this error

04-09 16:26:16.515: E/AndroidRuntime(6043): FATAL EXCEPTION: GLThread 11
04-09 16:26:16.515: E/AndroidRuntime(6043): java.lang.NoSuchMethodError: getTest
04-09 16:26:16.515: E/AndroidRuntime(6043): at org.cocos2dx.lib.Cocos2dxRenderer.nativeInit(Native Method)
04-09 16:26:16.515: E/AndroidRuntime(6043): at org.cocos2dx.lib.Cocos2dxRenderer.onSurfaceCreated(Cocos2dxRenderer.java:40)
04-09 16:26:16.515: E/AndroidRuntime(6043): at android.opengl.GLSurfaceView$GLThread.guardedRun(GLSurfaceView.java:1348)
04-09 16:26:16.515: E/AndroidRuntime(6043): at android.opengl.GLSurfaceView$GLThread.run(GLSurfaceView.java:1118)

Did you solve the problem?? :frowning:

#4

You should paste your java codes and corresponding jni codes.

#5

(Ljava/lang/String)V -> (Ljava/lang/String;)V

#6

why these errors comes after update code to latest cocos2dx 2.2.6 version ?in 2.2.3 it works well.

#7

@jubal2000 good catch.