我做了一些研究,仍然不知道是什么导致了我的代码中的这个错误(好吧,我知道是什么造成的,但我不知道为什么…)
本质上,我从Parse Cloud Code中检索一个数组results
。然后我将它发送到ViewController2,以UILabel
的格式打印出数组的一部分。当我这样做时,我会得到编译器错误。这真让我困惑!
请注意,我检索的数组result
同时包含Strings和Boolean值,这就是为什么我将其设为AnyObject
,以便以后可以强制转换特定部分。
云代码:
Parse.Cloud.define("checkAccountStatus", function(request, response) {
var results = [];
var query = new Parse.Query(Parse.User);
query.equalTo("username", request.params.username);
query.first({
success: function(getUserData) {
if (request.params.operation == 1) {
var passwordChanged = getUserData.get("passwordChanged");
var question1 = getUserData.get("question1");
var question2 = getUserData.get("question2");
var question3 = getUserData.get("question3");
results.push(passwordChanged);
results.push(question1);
results.push(question2);
results.push(question3);
}
else {
if (request.params.answerToQuestion1 == getUserData.get("answer1")) {
results.push(true)
}
else {
results.push(false)
}
if (request.params.answerToQuestion2 == getUserData.get("answer2")) {
results.push(true)
}
else {
results.push(false)
}
if (request.params.answerToQuestion3 == getUserData.get("answer3")) {
results.push(true)
}
else {
results.push(false)
}
}
response.success(results);
},
error: function(error) {
response.error("There was an error");
}
});
});
ViewController1代码(部分):
var data: AnyObject!
PFCloud.callFunctionInBackground("checkAccountStatus", withParameters: ["username" : self.username.text, "operation" : 1]) {
(result: AnyObject!, error: NSError!) -> Void in
if (error == nil) {
self.data = result
//...
}
}
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject!) {
if (segue.identifier == "reset") {
var svc = segue.destinationViewController as ViewController2;
svc.data = data
}
}
ViewController2代码:
@IBOutlet var question1: UILabel!
var data: AnyObject!
override func viewDidLoad() {
super.viewDidLoad()
question1.text = data[1] as String! //THIS GIVES ME THE ERROR.
}
尝试更改:
PFCloud.callFunctionInBackground("checkAccountStatus", withParameters: ["username" : self.username.text, "operation" : 1]) {
(result: AnyObject!, error: NSError!) -> Void in
至
PFCloud.callFunctionInBackground("checkAccountStatus", withParameters: ["username" : self.username.text, "operation" : 1]) {
(result: PFObject!, error: NSError!) -> Void in
我在使用带有findObjectsInBackgroundWithBlock的AnyObject时也出现了同样的错误。看起来类似于:这个链接是由于Parse SDK 中的更改而引起的