我目前正在为 BlackBerry 10 开发 eBay 应用程序，但遇到了一个问题。问题是，我想要一个下拉菜单（这样用户可以选择他们想要访问的 eBay 国家/地区），但我不知道如何在屏幕底部找到一个按钮，以便在何时访问正确的页面已在下拉列表中选择了一个选项。
http://i1078.photobucket.com/albums/w483/tobster619/Blackberry%2010/help_zps923bcc21.png
这是代码的分解版本，可以在附图中看到：
<script type="text/javascript">
//verify the welcome screen
function verifywelcome(){
if (document.getElementById('checkbox').get... == true) {
alert('checkbox is checked');
//set the localstorage item
localStorage.welcome = "true" ;
} else if (document.getElementById('checkbox').get... == false) {
alert('checkbox is not checked');
//set the localstorage item
localStorage.welcome = "false";
}
}
//if you want to remove the localStorage key to redisplay the welcome screen again. use: localStorage.removeItem('welcome');
function welcome() {
//check if welcome exists, if not: create it
if (localStorage.welcome == null) { localStorage.welcome = "true" };
if (localStorage.getItem('welcome') == "true") /* if it is true: */ {
bb.pushScreen('welcome.html', 'welcome');
}
else if (localStorage.getItem('welcome') == "false") {
bb.pushScreen('menu.html', 'menu');
}
}
//verify the welcome screen
function verifywelcome2(){
if (document.getElementById('checkbox').get... == true) {
alert('checkbox is checked');
//set the localstorage item
localStorage.welcome = "true" ;
} else if (document.getElementById('checkbox').get... == false) {
alert('checkbox is not checked');
//set the localstorage item
localStorage.welcome = "false";
}
}
//if you want to remove the localStorage key to redisplay the welcome screen again. use: localStorage.removeItem('welcome');
function welcome() {
//check if welcome exists, if not: create it
if (localStorage.welcome == null) { localStorage.welcome = "true" };
if (localStorage.getItem('welcome') == "true") /* if it is true: */ {
bb.pushScreen('welcome.html', 'welcome');
}
else if (localStorage.getItem('welcome') == "false") {
bb.pushScreen('menu2.html', 'menu2');
}
}
function onLoadFunctions() {
// Register the app. Make sure you get a unique UUID!
blackberry.event.addEventListener('ona... function (accessible, status) {
if (status === 'unregistered') {
blackberry.bbm.platform.register({
uuid: 'b1e606e8-66e5-41db-a932-6ad42f2aa59c'
});
} else if (status === 'allowed') {
bbm.registered = accessible;
}
}, false)
}
</script>
<select id="countryselector">
<option value="eBay UK" selected="true" onchange="verifywelcome();bb.pushScreen(... 'Menu');onLoadFunctions();">eBay UK</option>
<option value="eBay US" "verifywelcome2();bb.pushScreen('menu2.h... 'Menu2');onLoadFunctions();">eBay US</option>
<option value="eBay CA">eBay CA</option>
</select>
<table>
<tr>
<td class="cell" style="margin-top:13px;">Show this page on launch</td>
<td class="cell" ><input id="checkbox" type="checkbox" checked="true" value="one"/> </td>
</tr>
</table>
<!--BOTTOM PAGE MENU BAR -->
<div data-bb-type="action-bar">
<div data-bb-type="action" data-bb-style="button" data-bb-img="IMG/ic_next.png" onclick="verifywelcome();bb.pushScreen('... 'Menu');onLoadFunctions();">The Native eBay Experience Awaits...</div>
</div>
因此，当用户单击按钮（我刚刚向您展示的代码的最后一部分）时，它会将他们带到 eBay UK (menu.html)，我向您提出的问题是：如果用户要选择 eBay US (menu2.html)，当他们点击按钮时，它会将他们带到 menu2.html (eBay US) 而不是 menu.html (eBay UK)，同时仍然允许不同的 onclick 功能工作（“verifywelcome( );verifywelcome2();onLoadFunctions();")?
提前致谢！