由于h5+只提供了发短信的方法，没有提供发彩信的方法，坑爹的....然后自己写了个native调用原生发彩信方法
//定义回调委托
var delegate = plus.ios.implements(
'messageComposeViewController',
{'messageComposeViewController:didFinishWithResult:':function(result){
console.log('info:'+arguments.length);
plus.ios.invoke(arguments[0],'dismissViewControllerAnimated:completion:','YES',null);
}}
);
//创建彩信
var MessageUI = plus.ios.importClass("MessageUI");
var messageController = plus.ios.newObject('MFMessageComposeViewController');
//messageController.plusSetAttribute('body','');
messageController.plusSetAttribute('messageComposeDelegate',appRootController);
messageController.plusSetAttribute('messageComposeDelegate',delegate);
//添加图片
var canSendAttachments = plus.ios.invoke('MFMessageComposeViewController','canSendAttachments');
if(!canSendAttachments){
plus.nativeUI.alert('您的手机不支持彩信发送!');return;
}
//添加图片
var _path = plus.ios.invoke('NSURL','fileURLWithPath:',_url);
plus.ios.invoke(messageController,"addAttachmentURL:withAlternateFilename:",_path,'test.jpg');
//跳转到短信控制器
//获取根控制器
var UIApplicationClass = plus.ios.importClass("UIApplication");
var UIAppObj = UIApplicationClass.sharedApplication();
var appRootController = UIAppObj.plusGetAttribute('keyWindow').plusGetAttribute('rootViewController');
plus.ios.invoke(appRootController,"presentViewController:animated:completion:",messageController,"YES",null);
