Android版本要求及H5 api支持情况
在Android版本4.4之前，由于维护和开发Android版本时使用的是AppleWebkit开源内核，虽然也非常不错，但不支持许多html5 api,在Android4.4使用了Chromium才得以发展，
目前支持的html 5如下：
Web Workers
javaScript多线程
WebSocket
javascript套接字，TCP长链接
IDBFactory/indexDB
索引数据库
ApplicationCache
web离线缓存
postMessage/onMessage
ondeviceorientation,ondevicemotion,onorientationchange
屏幕旋转，移动
onvolumechange
在这里我们主要了解WebSocket在Android WebView上的支持，这里给出一个基于php WebSocketServer的例子：
【以下例子来自开源中国博客】
体验位置：
http://www.yxsss.com/ui/sk.html
（
请使用你的PC浏览器和你的Android4.4的设备上的浏览器
）
WebSocket Server端实现
error_reporting(E_ALL ^ E_NOTICE);
ob_implicit_flush();
class Sock{
public $sockets;
public $users;
public $master;
private $rec_data_packets=array();//已接收的数据
private $sum_length=array();//数据总长度
private $rec_data_length=array();//接收数据的长度
private $salt_key=array();//加密key
private $per_data_len=array(); //每组数据长度
public function __construct($address, $port,$maxLink=16){
$this->master=$this->createSocketServer($address, $port,$maxLink);
$this->sockets=array($this->master);
function run()
while(true){
$changes=$this->sockets;
$write=NULL;
$except=NULL;
socket_select($changes,$write,$except,NULL);
* 监听读写操作，socket_select (array &$read, array &$write, array &$except, $tv_sec, $tv_usec = null)
* $read 注意，这里使用了引用，$read表示要监听读操作的socket，socket_select可以调用多次，之前监听的socket不会被取消（注意，socket连接也是read）
* $write 注意，这里使用了引用，$read表示要监听写操作的socket，socket_select可以调用多次，之前监听的socket不会被取消
* $$except 监听异常的socket
* 以上&read,&write,&except是被引用的，也就意味着变量的值可以输入输出，把监听到的socket输出，把想被监听的socket输入
* 最后一个参数是超时时间，默认是0
* 该函数会阻塞
foreach($changes as $sock){
if($sock==$this->master){
* 接受客户端socket
* @var unknown
$client=socket_accept($this->master);
$key=uniqid();
$this->sockets[]=$client;
$this->users[$key]=array(
'socket'=>$client,
'handshake'=>false
}else{
$len=0;
$buffer='';
$l=socket_recv($sock,$buf,1000,0);
$len+=$l;
$buffer.=$buf;
}while($l==1000);
$k=$this->search($sock);
if($len<7){
$this->send2($k);
continue;
if(!$this->users[$k]['handshake']){
$this->handshake($k,$buffer);
}else{
$buffer = $this->uncode($buffer,$k);
if($buffer==false){
continue;
$this->send($k,$buffer);
function close($k){
socket_close($this->users[$k]['socket']);
unset($this->users[$k]);
$this->sockets=array($this->master);
foreach($this->users as $v){
$this->sockets[]=$v['socket'];
$this->e("key:$k close");
function search($sock){
foreach ($this->users as $k=>$v){
if($sock==$v['socket'])
return $k;
return false;
* @param string $address 地址
* @param int $port 端口
* @param number $maxLink 最大连接数
function createSocketServer($address,$port,$maxLink=16){
$server = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
socket_set_option($server, SOL_SOCKET, SO_REUSEADDR, 1);
socket_bind($server, $address, $port);
socket_listen($server,$maxLink);
$this->e('Server Started : '.date('Y-m-d H:i:s'));
$this->e('Listening on : '.$address.' port '.$port);
return $server;
* @param string $k 要握手的socket
* @param byte $buffer 缓冲数据
* @return boolean
function handshake($k,$buffer){
$buf = substr($buffer,strpos($buffer,'Sec-WebSocket-Key:')+18);
$key = trim(substr($buf,0,strpos($buf,"\r\n")));
$new_key = base64_encode(sha1($key."258EAFA5-E914-47DA-95CA-C5AB0DC85B11",true));
$new_message = "HTTP/1.1 101 Switching Protocols\r\n";
$new_message .= "Upgrade: websocket\r\n";
$new_message .= "Sec-WebSocket-Version: 13\r\n";
$new_message .= "Connection: Upgrade\r\n";
$new_message .= "Sec-WebSocket-Accept: " . $new_key . "\r\n\r\n";
socket_write($this->users[$k]['socket'],$new_message,strlen($new_message));
$this->users[$k]['handshake']=true;
return true;
function uncode($str,$key){
$mask = array();
$data = '';
$msg = unpack('H*',$str);
$head = substr($msg[1],0,2);
if ($head == '81' && !isset($this->sum_length[$key])) {
$len=substr($msg[1],2,2);
$len=hexdec($len);
if(substr($msg[1],2,2)=='fe'){
$len=substr($msg[1],4,4);
$len=hexdec($len);
$msg[1]=substr($msg[1],4);
}else if(substr($msg[1],2,2)=='ff'){
$len=substr($msg[1],4,16);
$len=hexdec($len);
$msg[1]=substr($msg[1],16);
$mask[] = hexdec(substr($msg[1],4,2));
$mask[] = hexdec(substr($msg[1],6,2));
$mask[] = hexdec(substr($msg[1],8,2));
$mask[] = hexdec(substr($msg[1],10,2));
$s = 12;
$n=0;
}else if($this->sum_length[$key] > 0){
$len=$this->sum_length[$key];
$mask=$this->salt_key[$key];
$n=$this->per_data_len[$key];
$s = 0;
$e = strlen($msg[1])-2;
for ($i=$s; $i<= $e; $i+= 2) {
$data .= chr($mask[$n%4]^hexdec(substr($msg[1],$i,2)));
$n++;
$dlen=strlen($data);
if($len > 255 && $len > $dlen+intval($this->rec_data_length[$key])){
$this->salt_key[$key]=$mask;
$this->sum_length[$key]=$len;
$this->rec_data_length[$key]=$dlen+intval($this->rec_data_length[$key]);
$this->rec_data_packets[$key]=$this->rec_data_packets[$key].$data;
$this->per_data_len[$key]=$n;
return false;
}else{
unset($this->salt_key[$key],$this->sum_length[$key],$this->rec_data_length[$key],$this->per_data_len[$key]);
$data=$this->rec_data_packets[$key].$data;
unset($this->rec_data_packets[$key]);
return $data;
function code($msg){
$frame = array();
$frame[0] = '81';
$len = strlen($msg);
if($len < 126){
$frame[1] = $len<16?'0'.dechex($len):dechex($len);
}else if($len < 65025){
$s=dechex($len);
$frame[1]='7e'.str_repeat('0',4-strlen($s)).$s;
}else{
$s=dechex($len);
$frame[1]='7f'.str_repeat('0',16-strlen($s)).$s;
$frame[2] = $this->ord_hex($msg);
$data = implode('',$frame);
return pack("H*", $data);
function ord_hex($data) {
$msg = '';
$l = strlen($data);
for ($i= 0; $i<$l; $i++) {
$msg .= dechex(ord($data{$i}));
return $msg;
//用户加入
function send($k,$msg){
parse_str($msg,$g);
$ar=array();
if($g['type']=='add'){
$this->users[$k]['name']=$g['ming'];
$ar['type']='add';
$ar['name']=$g['ming'];
$key='all';
}else{
$ar['nrong']=$g['nr'];
$key=$g['key'];
$this->send1($k,$ar,$key);
function getusers(){
$ar=array();
foreach($this->users as $k=>$v){
$ar[]=array('code'=>$k,'name'=>$v['name']);
return $ar;
* @param string $k 发信息人的code
* @param string $ar 数据
* @param string $key 接受人的 code
function send1($k,$ar,$key='all'){
$ar['code1']=$key;
$ar['code']=$k;
$ar['time']=date('m-d H:i:s');
$str = $this->code(json_encode($ar));
if($key=='all'){
$users=$this->users;
if($ar['type']=='add'){
$ar['type']='madd';
$ar['users']=$this->getusers();
$str1 = $this->code(json_encode($ar));
socket_write($users[$k]['socket'],$str1,strlen($str1));
unset($users[$k]);
foreach($users as $v){
socket_write($v['socket'],$str,strlen($str));
}else{
socket_write($this->users[$k]['socket'],$str,strlen($str));
socket_write($this->users[$key]['socket'],$str,strlen($str));
//用户退出
function send2($k){
$this->close($k);
$ar['type']='rmove';
$ar['nrong']=$k;
$this->send1(false,$ar,'all');
function e($str){
//$path=dirname(__FILE__).'/log.txt';
$str=$str."\n";
//error_log($str,3,$path);
echo iconv('utf-8','gbk//IGNORE',$str);
$sk=new Sock('127.0.0.1',8000);
$sk->run();
WebSocket Client端实现
client端
<!doctype html>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, user-scalable=no"/>
<title>HTML5 websocket 网页聊天室 javascript php</title>
<style type="text/css">
body,p{margin:0px; padding:0px; font-size:14px; color:#333; font-family:Arial, Helvetica, sans-serif;}
#ltian,.rin{width:98%; margin:5px auto;}
#ltian{border:1px #ccc solid;overflow-y:auto; overflow-x:hidden; position:relative;}
#ct{margin-right:111px; height:100%;overflow-y:auto;overflow-x: hidden;}
#us{width:110px; overflow-y:auto; overflow-x:hidden; float:right; border-left:1px #ccc solid; height:100%; background-color:#F1F1F1;}
#us p{padding:3px 5px; color:#08C; line-height:20px; height:20px; cursor:pointer; overflow:hidden; white-space:nowrap; text-overflow:ellipsis;}
#us p:hover,#us p:active,#us p.ck{background-color:#069; color:#FFF;}
#us p.my:hover,#us p.my:active,#us p.my{color:#333;background-color:transparent;}
button{float:right; width:80px; height:35px; font-size:18px;}
input{width:100%; height:30px; padding:2px; line-height:20px; outline:none; border:solid 1px #CCC;}
.rin p{margin-right:160px;}
.rin span{float:right; padding:6px 5px 0px 5px; position:relative;}
.rin span img{margin:0px 3px; cursor:pointer;}
.rin span form{ width:25px; height:25px; overflow:hidden; opacity:0; top:5px; right:5px;}
.rin span input{width:180px; height:25px; margin-left:-160px; cursor:pointer}
#ct p{padding:5px; line-height:20px;}
#ct a{color:#069; cursor:pointer;}
#ct span{color:#999; margin-right:10px;}
.c2{color:#999;}
.c3{background-color:#DBE9EC; padding:5px;}
.qp{ font-size:12px; color:#666; top:5px; right:130px; text-decoration:none; color:#069;}
#ems{ z-index:5; ; top:0px; left:0px; max-width:230px; background-color:#F1F1F1; border:solid 1px #CCC; padding:5px;}
#ems img{width:44px; height:44px; border:solid 1px #FFF; cursor:pointer;}
#ems img:hover,#ems img:active{border-color:#A4B7E3;}
#ems a{color:#069; border-radius:2px; display:inline-block; margin:2px 5px; padding:1px 8px; text-decoration:none; background-color:#D5DFFD;}
#ems a:hover,#ems a:active,#ems a.ck{color:#FFF; background-color:#069;}
.tc{text-align:center; margin-top:5px;}
</style>
</head>
<div id="ltian">
<div id="us" class="jb"></div>
<div id="ct"></div>
<a href="javascript:;" class="qp" onClick="this.parentNode.children[1].innerHTML=''">清屏</a>
<div class="rin">
<button id="sd">发送</button>
<span><img src="http://www.yxsss.com/ui/sk/t.png" title="表情" id="imgbq"><img src="http://www.yxsss.com/ui/sk/e.png" title="上传图片"><form><input type="file" title="上传图片" id="upimg"></form></span>
<p><input id="nrong"></p>
<div id="ems"><p></p><p class="tc"></p></div>
<script>
if(typeof(WebSocket)=='undefined'){
alert('你的浏览器不支持 WebSocket ，推荐使用Google Chrome 或者 Mozilla Firefox');
</script>
<script src="http://www.yxsss.com/ui/p/a.js" type="text/javascript"></script>
<script>
(function(){
var key='all',mkey;
var users={};
var url='ws://127.0.0.1:8000';
var so=false,n=false;
var lus=A.$('us'),lct=A.$('ct');
function st(){
n=prompt('请给自己取一个响亮的名字：');
n=n.substr(0,16);
if(!n){
return ;
so=new WebSocket(url);
so.onopen=function(){
if(so.readyState==1){
so.send('type=add&ming='+n);
so.onclose=function(){
so=false;
lct.appendChild(A.$$('<p class="c2">退出聊天室</p>'));
so.onmessage=function(msg){
eval('var da='+msg.data);
var obj=false,c=false;
if(da.type=='add'){
var obj=A.$$('<p>'+da.name+'</p>');
lus.appendChild(obj);
cuser(obj,da.code);
obj=A.$$('<p><span>['+da.time+']</span>欢迎<a>'+da.name+'</a>加入</p>');
c=da.code;
}else if(da.type=='madd'){
mkey=da.code;
da.users.unshift({'code':'all','name':'大家'});
for(var i=0;i<da.users.length;i++){
var obj=A.$$('<p>'+da.users[i].name+'</p>');
lus.appendChild(obj);
if(mkey!=da.users[i].code){
cuser(obj,da.users[i].code);
}else{
obj.className='my';
document.title=da.users[i].name;
obj=A.$$('<p><span>['+da.time+']</span>欢迎'+da.name+'加入</p>');
users.all.className='ck';
if(obj==false){
if(da.type=='rmove'){
var obj=A.$$('<p class="c2"><span>['+da.time+']</span>'+users[da.nrong].innerHTML+'退出聊天室</p>');
lct.appendChild(obj);
users[da.nrong].del();
delete users[da.nrong];
}else{
da.nrong=da.nrong.replace(/{\\(\d+)}/g,function(a,b){
return '<img src="sk/'+b+'.gif">';
}).replace(/^data\:image\/png;base64\,.{50,}$/i,function(a){
return '<img src="'+a+'">';
//da.code 发信息人的code
if(da.code1==mkey){
obj=A.$$('<p class="c3"><span>['+da.time+']</span><a>'+users[da.code].innerHTML+'</a>对我说：'+da.nrong+'</p>');
c=da.code;
}else if(da.code==mkey){
if(da.code1!='all')
obj=A.$$('<p class="c3"><span>['+da.time+']</span>我对<a>'+users[da.code1].innerHTML+'</a>说：'+da.nrong+'</p>');
obj=A.$$('<p><span>['+da.time+']</span>我对<a>'+users[da.code1].innerHTML+'</a>说：'+da.nrong+'</p>');
c=da.code1;
}else if(da.code==false){
obj=A.$$('<p><span>['+da.time+']</span>'+da.nrong+'</p>');
}else if(da.code1){
obj=A.$$('<p><span>['+da.time+']</span><a>'+users[da.code].innerHTML+'</a>对'+users[da.code1].innerHTML+'说：'+da.nrong+'</p>');
c=da.code;
if(c){
obj.children[1].onclick=function(){
users[c].onclick();
lct.appendChild(obj);
lct.scrollTop=Math.max(0,lct.scrollHeight-lct.offsetHeight);
A.$('sd').onclick=function(){
if(!so){
return st();
var da=A.$('nrong').value.trim();
if(da==''){
alert('内容不能为空');
return false;
A.$('nrong').value='';
so.send('nr='+esc(da)+'&key='+key);
A.$('nrong').onkeydown=function(e){
var e=e||event;
if(e.keyCode==13){
A.$('sd').onclick();
function esc(da){
da=da.replace(/</g,'<').replace(/>/g,'>').replace(/\"/g,'"');
return encodeURIComponent(da);
function cuser(t,code){
users[code]=t;
t.onclick=function(){
t.parentNode.children.rcss('ck','');
t.rcss('','ck');
key=code;
A.$('ltian').style.height=(document.documentElement.clientHeight - 70)+'px';
st();
var bq=A.$('imgbq'),ems=A.$('ems');
var l=80,r=4,c=5,s=0,p=Math.ceil(l/(r*c));
var pt='sk/';
bq.onclick=function(e){
var e=e||event;
if(!so){
return st();
ems.style.display='block';
document.onclick=function(){
gb();
ct();
try{e.stopPropagation();}catch(o){}
for(var i=0;i<p;i++){
var a=A.$$('<a href="javascript:;">'+(i+1)+'</a>');
ems.children[1].appendChild(a);
ef(a,i);
ems.children[1].children[0].className='ck';
function ct(){
var wz=bq.weiz();
with(ems.style){
top=wz.y-242+'px';
left=wz.x+bq.offsetWidth-235+'px';
function ef(t,i){
t.onclick=function(e){
var e=e||event;
s=i*r*c;
ems.children[0].innerHTML='';
hh();
this.parentNode.children.rcss('ck','');
this.rcss('','ck');
try{e.stopPropagation();}catch(o){}
function hh(){
var z=Math.min(l,s+r*c);
for(var i=s;i<z;i++){
var a=A.$$('<img src="'+pt+i+'.gif">');
hh1(a,i);
ems.children[0].appendChild(a);
ct();
function hh1(t,i){
t.onclick=function(e){
var e=e||event;
A.$('nrong').value+='{\\'+i+'}';
if(!e.ctrlKey){
gb();
try{e.stopPropagation();}catch(o){}
function gb(){
ems.style.display='';
A.$('nrong').focus();
document.onclick='';
hh();
A.on(window,'resize',function(){
A.$('ltian').style.height=(document.documentElement.clientHeight - 70)+'px';
ct();
var fimg=A.$('upimg');
var img=new Image();
var dw=400,dh=300;
A.on(fimg,'change',function(ev){
if(!so){
st();
return false;
if(key=='all'){
alert('由于资源限制 发图只能私聊');
return false;
var f=ev.target.files[0];
if(f.type.match('image.*')){
var r = new FileReader();
r.onload = function(e){
img.setAttribute('src',e.target.result);
r.readAsDataURL(f);
img.onload=function(){
ih=img.height,iw=img.width;
if(iw/ih > dw/dh && iw > dw){
ih=ih/iw*dw;
iw=dw;
}else if(ih > dh){
iw=iw/ih*dh;
ih=dh;
var rc = A.$$('canvas');
var ct = rc.getContext('2d');
rc.width=iw;
rc.height=ih;
ct.drawImage(img,0,0,iw,ih);
var da=rc.toDataURL();
so.send('nr='+esc(da)+'&key='+key);
})();
</script>
</body>
</html>
