The Cocos2d-x3.3RC0 calls Android Java layer URI code through JNI to send SMS, cocos2d-x3.3rc0jni

The Cocos2d-x3.3RC0 calls Android Java layer URI code through JNI to send SMS, cocos2d-x3.3rc0jni
1. If Jni is not described in detail, refer to the previous blog 2. directly go to code 1) Java layer and add it directly to AppActivity. java.

Public class AppActivity extends Cocos2dxActivity {public static Activity acty; protected void onCreate (Bundle savedInstanceState) {super. onCreate (savedInstanceState); acty = this;} static {System. loadLibrary ("cocos2dcpp");} public static void Share () {new Thread (new Runnable () {@ Overridepublic void run () {// TODO Auto-generated method stubUri uri = Uri. parse ("Maid: 18928475901"); Intent it = new Intent (Intent. ACTION_SENDTO, uri); it. putExtra ("sms_body", "SMS content"); System. out. println ("test"); it. setFlags (Intent. FLAG_ACTIVITY_NEW_TASK); // acty. startActivity (Intent. createChooser (intent, "share"); acty. startActivity (it );}}). start ();}}

2) Jni layer: The. h and. cpp codes of the Jni/hellocpp/test classes are as follows: test. h

# Ifndef TEST_H _ # define TEST_H_extern "C" {// C ++ calls the Java function interface. This method is used in the menuCallback function of HelloWorldScene. // Void showTipDialog (const char * title, const char * msg); void Share () ;}# endif

Test. cpp note that these two pieces of code are modified on the previous code, and some code has nothing to do with this function. Delete it by yourself.

#include "test.h"#include "cocos2d.h"#include "platform/android/jni/JniHelper.h"#include "../../../Classes/JniTest.h"#include <jni.h>#define CLASS_NAME "org/cocos2dx/cpp/JniTestHelper"#define CLASS_NAMENEW "org/cocos2dx/cpp/AppActivity"using namespace cocos2d;extern "C"{void Share(){bool hasMethod;JniMethodInfo t;hasMethod = JniHelper::getStaticMethodInfo(t,CLASS_NAMENEW,"Share","()V");if(hasMethod){log("Share function");if(t.methodID){t.env->CallStaticVoidMethod(t.classID,t.methodID);log("function share() was called");}else{log("function share was not called");}}else{log("function share was not found");}}}

3) C ++ Layer

Void HelloWorld: menuCloseCallback (Ref * pSender) {# if (CC_TARGET_PLATFORM = CC_PLATFORM_ANDROID) // showTipDialog ("exit", "Exit, Really Go? "); Share (); // call tes. the Share () function in cpp. This function calls the Share () function in Java # endif # if (CC_TARGET_PLATFORM = CC_PLATFORM_IOS) exit (0); # endif}

4) Add the test. cpp file path to the mk file. Add the platform judgment in the header file. The Code is as follows:

#if(CC_TARGET_PLATFORM == CC_PLATFORM_ANDROID)#include "../proj.android/jni/hellocpp/test.h"#endif

For ANDROID development, how does JAVA call ANDROID-specific NDK projects? with experience in NDK and JNI

After reading your description, I think this so should not include the interface for interacting with java. You need to write another so interface that provides java and the C project through JNI. You should have the header file of this C project. You only need to encapsulate it with JNI.

In android development, how can I call the static method modified with synchronized of java classes in jni?

Is the method signature parameter in the correct format? Is the method static? At the native level, the class names are not separated by A. Dot but by a slash.