android中封锁返回键_Android

android中关闭返回键
public boolean onKeyDown(int keyCode,KeyEvent event){
switch(keyCode){
case KeyEvent.KEYCODE_HOME:return true;
case KeyEvent.KEYCODE_BACK:return true;
case KeyEvent.KEYCODE_CALL:return true;
case KeyEvent.KEYCODE_SYM: return true;
case HTTP/1.1 404 Not FoundX-Runtime: 7Vary: Accept-EncodingContent-Type: text/html; charset=utf-8Cache-Control: no-cacheContent-Length: 1335Set-Cookie: _javaeye_cookie_id_=1413596337404617; domain=iteye.com; path=/; expires=Wed, 18-Oct-2017 01:38:57 GMTSet-Cookie: _javaeye3_session_=BAh7BjoPc2Vzc2lvbl9pZCIlNWYxZGRhZGUxNWI3OGExNjE3NzlkZDE5NWFhMDQ4ZDY%3D--f2a2f5520ce2ed67e5afbd103b07b5d164a55b3c; domain=.iteye.com; path=/; HttpOnlyDate: Sat, 18 Oct 2014 01:38:57 GMTServer: ITeye SERVER 您访问的地址不存在 404 Not Found - ITeye技术网站

您访问的地址不存在，请确认您输入的URL地址

HTTP/1.1 200 OKCache-Control: private, max-age=0, must-revalidateSet-Cookie: _javaeye_cookie_id_=1413596337504958; domain=iteye.com; path=/; expires=Wed, 18-Oct-2017 01:38:57 GMTSet-Cookie: _javaeye3_session_=BAh7BjoPc2Vzc2lvbl9pZCIlM2RjYjMxOTg4NTMyZjAyNjUyZjk4MTE2OWM3YWM3Nzg%3D--cca00c87c2f9773199ccaa469844c3707a96c742; domain=.iteye.com; path=/; HttpOnlyContent-Type: text/html; charset=utf-8Vary: Accept-EncodingX-Runtime: 54ETag: "e7de821dc44f56a2c909a831a3427265"Content-Length: 19810Date: Sat, 18 Oct 2014 01:38:57 GMTServer: ITeye SERVER ios在navigation上添加loading(UIActivityIndicatorView)按钮 - 丸子 - ITeye技术网站

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// initing the loading view	CGRect frame = CGRectMake(0.0, 0.0, 25.0, 25.0);	UIActivityIndicatorView *loading = [[UIActivityIndicatorView alloc] initWithFrame:frame];	[loading startAnimating];	loading.autoresizingMask = (UIViewAutoresizingFlexibleLeftMargin |								UIViewAutoresizingFlexibleRightMargin |								UIViewAutoresizingFlexibleTopMargin |								UIViewAutoresizingFlexibleBottomMargin);		// initing the bar button	UIBarButtonItem *loadingView = [[UIBarButtonItem alloc] initWithCustomView:loading];	loadingView.target = self;		self.navigationItem.rightBarButtonItem = loadingView;