How to save user's input in UITextField? - ios

Question

I wanted to know how can I save a user's input when the user enters something from his mobile phone in the UITextField?
If I just use the text field and run the app I can enter data in the text field but when I close the application the data is gone. So how can I store that data permanently and show it again after the application is closed and reopened. Is there any way to save it?

Answer 1

At first, you should save the text when user did editing before user close the application(e.g. saved by NSUserDefaults):
self.yourTextView.delegate = self;
- (void)textViewDidChange:(UITextView *)textView
{
if (textView.markedTextRange == nil)
{
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
[defaults setObject:textView.text forKey:#"userText"];
[defaults synchronize];
}
}
Then, load the text that user saved before when user open your application again:
- (void)viewDidLoad
{
[super viewDidLoad];
self.yourTextView.text = [[NSUserDefaults standardUserDefaults]objectForKey:#"userText"];
}

Answer 2

We can save data into 3 data base
If you want to store single data into db, you can use
NSUserDefault
For store
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
[defaults setObject:textView.text forKey:#"textviewdata"];
[defaults synchronize];
For Retrieve
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
NSString *strTextViewText = [NSString stringWithFormat:#"%#",[defaults objectForKey:#"textviewdata"]];
Then Store a larger amount of data,we can use
SQLite
CoreData

Answer 3

Here are some ways to save data inside application.
create local database using sqlite or coredata both provides facilty to save data locally and before use please find the different situations to use these databases.
using NSUserDefaluts but not recomemded because NSUserDefaults aren’t meant to store sensitive information for more information see imp link see example also if you still.
To store data using NSUserDefaluts:
[[NSUserDefaults standardUserDefaults]setObject:self.textfield.text forKey:#"yourKey"];
To get data anywhere inside app:
object = [[NSUserDefaults standardUserDefaults] valueForKey:#"yourKey"];

Answer 4

Try with this:
-(void)viewDidDisappear:(BOOL)animated
{
[[NSUserDefaults standardUserDefaults]setObject:self.urtextfield.text forKey:#"savedtext"];
}
-(void)viewWillAppear:(BOOL)animated
{
self.urtextfield.text = [[NSUserDefaults standardUserDefaults]objectForKey:#"savedtext"];
}