本文介绍了只有NSMutableArray的第一个对象存储在NSUserDefaults中的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我尝试存储UILocalNotification的队列以解决,它会归档和取消归档我的对象,但只有第一个。
如何存档我的NSMutableArray中的所有对象?
代码
// init / unarchive queue
if(self.queue == nil)
{
//尝试加载存储数组
NSUserDefaults * currentDefaults = NSUserDefaults standardUserDefaults];
NSData * dataRepresentingSavedArray = [currentDefaults objectForKey:@LocalNotificationQueue];
if(dataRepresentingSavedArray!= nil){
NSArray * oldSavedArray = [NSKeyedUnarchiver unarchiveObjectWithData:dataRepresentingSavedArray];
if(oldSavedArray!= nil){
self.queue = [[NSMutableArray alloc] initWithArray:oldSavedArray];
}
else
{
self.queue = [[NSMutableArray alloc] init];
}
}
else
{
self.queue = [[NSMutableArray alloc] init];
}
}
// add
[self.queue addObject:notif];
//存储队列
[[NSUserDefaults standardUserDefaults] setObject:[NSKeyedArchiver archivedDataWithRootObject:self.queue] forKey:@LocalNotificationQueue];
如果我添加项目1,2,3。重新启动并加载。我只有3个。
添加1,2,3。重新启动并加载。我有3,1,2。
如果重要的话。这是一个Phonegap / Cordova CDVPlugin。
解决方案
之后
[[NSUserDefaults standardUserDefaults] setObject:[NSKeyedArchiver archivedDataWithRootObject:self.queue] forKey:@LocalNotificationQueue];
您需要致电
[[NSUserDefaults standardUserDefaults] synchronize]
保存用户默认值。 / p>
I am trying to store a queue of UILocalNotification to solve the limit problem. I used this approach and it does archive and unarchive my object but only the first one.
How do I archive all objects from my NSMutableArray?
Code
// init/unarchive queue
if (self.queue == nil)
{
// try loading stored array
NSUserDefaults *currentDefaults = [NSUserDefaults standardUserDefaults];
NSData *dataRepresentingSavedArray = [currentDefaults objectForKey:@"LocalNotificationQueue"];
if (dataRepresentingSavedArray != nil) {
NSArray *oldSavedArray = [NSKeyedUnarchiver unarchiveObjectWithData:dataRepresentingSavedArray];
if (oldSavedArray != nil) {
self.queue = [[NSMutableArray alloc] initWithArray:oldSavedArray];
}
else
{
self.queue = [[NSMutableArray alloc] init];
}
}
else
{
self.queue = [[NSMutableArray alloc] init];
}
}
// add
[self.queue addObject:notif];
// store queue
[[NSUserDefaults standardUserDefaults] setObject:[NSKeyedArchiver archivedDataWithRootObject:self.queue] forKey:@"LocalNotificationQueue"];
If I add items 1,2,3. Restart and load. I have only 3.
Add 1,2,3. Restart and load. I have 3, 1, 2.
If it matters. This is a Phonegap/Cordova CDVPlugin.
解决方案
After
[[NSUserDefaults standardUserDefaults] setObject:[NSKeyedArchiver archivedDataWithRootObject:self.queue] forKey:@"LocalNotificationQueue"];
You need to call
[[NSUserDefaults standardUserDefaults] synchronize]
To save the user defaults.
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