在cocos2d-x界面中嵌入Android的WebView

在Cocos2dxActivity.java中,

(1) 增加函数onCreateLayout，

publicLinearLayoutonCreateLayout(Cocos2dxGLSurfaceViewsurfaceView){
LinearLayoutlayout=newLinearLayout(this);
layout.setOrientation(LinearLayout.VERTICAL);
layout.addView(surfaceView);
returnlayout;
}

(2) 在this.mGLSurfaceView = this.onCreateView() 下面增加这一行：

LinearLayoutcontentLayout=this.onCreateLayout(mGLSurfaceView);

(3) 应用的Activity文件实现如下，

publicclassHelloCppextendsCocos2dxActivity{
staticHelloCppsHelloCpp=null;
LinearLayoutmContentLayout;
Cocos2dxGLSurfaceViewmGlSurfaceView;
LinearLayoutmWebLayout;
WebViewmWebView;
ButtonmBackButton;

protectedvoidonCreate(BundlesavedInstanceState){
super.onCreate(savedInstanceState);
}

publicLinearLayoutonCreateLayout(Cocos2dxGLSurfaceViewsurfaceView){
mGlSurfaceView=surfaceView;
sHelloCpp=this;

mContentLayout=newLinearLayout(this);
mContentLayout.setOrientation(LinearLayout.VERTICAL);
mContentLayout.addView(surfaceView);

mWebLayout=newLinearLayout(this);
mWebLayout.setOrientation(LinearLayout.VERTICAL);

returnmContentLayout;
}

publicCocos2dxGLSurfaceViewonCreateView(){
Cocos2dxGLSurfaceViewglSurfaceView=newCocos2dxGLSurfaceView(this);
//TestCppshouldcreatestencilbuffer
glSurfaceView.setEGLConfigChooser(5,6,5,0,16,8);

returnglSurfaceView;
}

//此函数提供给jni调用，返回自身类的对象
publicstaticHelloCppgetInstance(){//返回实例
returnsHelloCpp;
}

publicvoidopenWebView(){
this.runOnUiThread(newRunnable(){//在主线程里添加别的控件
publicvoidrun(){
//初始化webView
mWebView=newWebView(HelloCpp.this);
//设置webView能够执行javascript脚本
mWebView.getSettings().setJavaScriptEnabled(true);
//载入URL
mWebView.loadUrl("file:///android_asset/index.html");
//使页面获得焦点
//mWebView.requestFocus();
//如果页面中链接，如果希望点击链接继续在当前browser中响应
mWebView.setWebViewClient(newWebViewClient(){
publicbooleanshouldOverrideUrlLoading(WebViewview,Stringurl){
if(url.indexOf("tel:")<0){
view.loadUrl(url);
}
returntrue;
}
});

/*初始化返回按钮*/
mBackButton=newButton(HelloCpp.this);
mBackButton.setLayoutParams(newLinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT,LinearLayout.LayoutParams.WRAP_CONTENT));
mBackButton.setText("Close");
mBackButton.setTextColor(Color.argb(255,255,218,154));
mBackButton.setTextSize(14);
mBackButton.setOnClickListener(newOnClickListener(){
publicvoidonClick(Viewv){
removeWebView();
mGlSurfaceView.setVisibility(View.VISIBLE);
}
});

//把webView加入到线性布局
mGlSurfaceView.setVisibility(View.GONE);
mWebLayout.addView(mBackButton);
mWebLayout.addView(mWebView);
mContentLayout.addView(mWebLayout);
}
});
}
//移除webView把刚才加的所有控件都删掉
publicvoidremoveWebView(){
mContentLayout.removeView(mWebLayout);
mWebLayout.destroyDrawingCache();

mWebLayout.removeView(mWebView);
mWebView.destroy();

mWebLayout.removeView(mBackButton);
mBackButton.destroyDrawingCache();
}

publicbooleanonKeyDown(intkeyCoder,KeyEventevent)//重载函数，android手机实体返回键回调函数
{
if(mWebView.canGoBack()&&keyCoder==KeyEvent.KEYCODE_BACK){//如果网页能回退则后退，如果不能后退移除WebView
mWebView.goBack();
}else{
removeWebView();
mGlSurfaceView.setVisibility(View.VISIBLE);
}
returnfalse;
}

static{
System.loadLibrary("game");
}

从cocos2d-x的界面中打开WebView的代码：

#if(CC_TARGET_PLATFORM==CC_PLATFORM_ANDROID)
//getStaticMethodInfo，判断Java静态函数是否存在，并且把信息保存到minfo里
//参数1：JniMethodInfo
//参数2：Java类包名+类名
//参数3：Java函数名称
//参数4：函数参数类型和返回值类型，这里的返回值类型是HelloCpp类的对象。写法：L+包名+;其他的类型请看上面的“JNI详细教程”

JniMethodInfominfo;
jobjectjobj;
boolisHave=JniHelper::getStaticMethodInfo(minfo,"cn/livelog/popdiamond/HelloCpp","getInstance","()Lcn/livelog/popdiamond/HelloCpp;");
if(isHave)
{
//调用Java静态函数，取得对象。
jobj=minfo.env->CallStaticObjectMethod(minfo.classID,minfo.methodID);
if(jobj!=NULL)
{
isHave=JniHelper::getMethodInfo(minfo,"cn/livelog/popdiamond/HelloCpp","openWebView","()V");
if(isHave)
{
//调用java非静态函数,参数1：Java对象，上面已经取得参数2：方法ID
minfo.env->CallVoidMethod(jobj,minfo.methodID);
}
}
}
#endif