uniapp 从不同的应用程序链接 WhatsApp

h5：
<a href="https://api.whatsapp.com/send?phone=+86123456789&text=Hello">点我WhatsApp聊天</a>

移动端：
<a href="whatsapp://send?phone=+86123456789&text=Hello">点我WhatsApp聊天</a>  // 这种方式 好像只是Android上起作用

ios上使用如下：
//安卓这种方式没办法跳转到指定人的聊天对话框上 可以用上面那种
if (plus.os.name == "Android") { 
plus.runtime.launchApplication({
pname:"com.whatsapp",
// extra:{phone:"+8618312727657",text:"测试内容"},
extra:{phone:"8618312727657"},
},function(e) {
alert( "Open system default browser failed: " + e.message )
} )
} else if ( plus.os.name == "iOS" ) {
// plus.runtime.launchApplication( {action:"whatsapp://send?phone=8618312727657&text=Hello"}, function ( e ) {
// plus.runtime.launchApplication( {action:"https://wa.me/8618312727657?text=I'm%20interested%20in%20your%20car%20for%20sale"}, function ( e ) {
plus.runtime.launchApplication( {action:"https://wa.me/8613025532209"}, function ( e ) {
alert( "Open system default browser failed: " + e.message )
})
}