存檔 檢查網絡連接

/**
     * 檢查網絡連接
     * 必要情況跳轉到網絡配置界面
     */
    private void checkNetwork(){
    	ConnectivityManager conMan = (ConnectivityManager)getSystemService(Context.CONNECTIVITY_SERVICE);
    	
    	//mobie 3G Data Network
    	State mobile = conMan.getNetworkInfo(ConnectivityManager.TYPE_MOBILE).getState();
    	
    	//wifi
    	State wifi = conMan.getNetworkInfo(ConnectivityManager.TYPE_WIFI).getState();
    	
    	if(mobile == State.CONNECTED || mobile == State.CONNECTING)
    		return;
    	if(wifi == State.CONNECTED || wifi == State.CONNECTING)
    		return;
    	
    	startActivity(new Intent(Settings.ACTION_WIRELESS_SETTINGS));
    }