android cocos2dx游戏-加入截图和分享微博功能

本文介绍怎样在游戏中添加分享功能，截屏后分享到微博及其他社交网络的功能。

public class ShareSupport {
    // when you want to use share(),firstly you should init acty.
    public static Activity acty;
    
    public static void share() {
        new Thread(new Runnable(){

            @Override
            public void run() {
                Intent intent = new Intent("android.intent.action.SEND");  
                intent.setType("image/*");      
                intent.putExtra(Intent.EXTRA_SUBJECT, "分享");      
                intent.putExtra(Intent.EXTRA_TEXT, "最终能够了!!!");
                intent.putExtra(Intent.EXTRA_STREAM,Uri.parse("file:////data/data/" + acty.getApplicationInfo().packageName+ "/share.png"));
                Log.i("debug", "/data/data/" + acty.getApplicationInfo().packageName+ "/share.png");
                intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);     
                acty.startActivity(Intent.createChooser(intent, "分享")); 
            }
            
        }).start();
    }
}

拿出曾经写android时的分享代码。

#include "jni_interfaces.h"
#include <android/jni/JniHelper.h>

extern "C" {
    void Share()
    {
        cocos2d::JniMethodInfo jni_method_info;
        cocos2d::JniHelper::getStaticMethodInfo(jni_method_info,"com/hortor/support/ShareSupport","share","()V");

        if (jni_method_info.methodID)
        {
            jni_method_info.env->CallStaticVoidMethod(jni_method_info.classID, jni_method_info.methodID);
        }
    }
}

c++代码越写越简洁了，删掉非常多冗杂的地方。

#if (CC_TARGET_PLATFORM == CC_PLATFORM_ANDROID)
  Share();
  CCLog("share ok");
#endif

在分享button初调用jni_interfaces中的Share()函数。

ok只是有时。程序分享完会出现崩溃。

02-10 10:22:59.976: A/libc(2565): Fatal signal 11 (SIGSEGV) at 0x54e68000 (code=1)

看到群里有问。怎样从序列帧中获取一张图片，我贴出游戏中截图代码：

    CCSize size = CCDirector::sharedDirector()->getWinSize();
    CCRenderTexture* in_texture = CCRenderTexture::renderTextureWithWidthAndHeight((int)size.width, (int)size.height,kCCTexture2DPixelFormat_RGBA8888);
    in_texture->getSprite()->setAnchorPoint( ccp(0.5f,0.5f) );
    in_texture->setPosition( ccp(size.width/2, size.height/2) );
    in_texture->setAnchorPoint( ccp(0.5f,0.5f) );

    in_texture->begin();
    this->visit();
    in_texture->end();

    CCLog("%d",in_texture->saveBuffer(kCCImageFormatPNG,"share.png",0,0,800,480));