I used AppleKeyboards to get users' keyboard setting before iOS6:
NSArray * keyboards = [[NSUserDefaults standardUserDefaults] objectForKey:#"AppleKeyboards"];
for (int i = 0; i < [keyboards count]; i++)
{
NSLog(#"%#", [keyboards objectAtIndex:i]);
}
But after iOS6, I can't use AppleKeyboards as key for the user setting.
Is there any solution for this? Thanks!
You can use UITextInputMode Class to get current text input mode by "+ (UITextInputMode *)currentInputMode".
see also: https://developer.apple.com/library/ios/#documentation/UIKit/Reference/UITextInputMode_Class/Reference/Reference.html
Related
I am trying to remove all the items that user has added in NSCollectionView by removing all items from NSMutableArray. It's not working.
I just need to Refresh/Reload by Clear/Remove all items of the NSCollectionView
Try this
NSIndexSet* selectedIndexSet = [_lablesCollectionView selectionIndexes];
NSUInteger index = [selectedIndexSet firstIndex] ;
NSLog(#"index is %d", index);
[lablesArray removeObjectsAtArrangedObjectIndexes:selectedIndexSet];
Hope it helps.
//remove/clear all items from NSCollectionView
for (int i = 0; i < [[arrayController arrangedObjects] count]; i++) {
[arrayController removeObjectAtArrangedObjectIndex:i];
i--;
}
So I'm using iCarousel to display some images in my app and I need a label to show current image index when I scroll (e.g. "3/10"). This is my code:
- (void)carouselCurrentItemIndexDidChange:(iCarousel *)carousel
{
NSLog(#"index: %i", currentItemIndex);
imageNumber.text = #"";
imageNumber.text = [[[imageNumber.text
stringByAppendingString:[NSString stringWithFormat:#"%i", currentItemIndex+1]]
stringByAppendingString:#"/" ]
stringByAppendingString:[NSString stringWithFormat:#"%i", carousel.numberOfItems]];
}
Although this method is being called whenever I scroll, the currentItemIndex never change. It remains 0.
Does anybody know why is this or can suggest another way I can update the index when the user scrolls the carousel?
First, you need to have
carousel.currentItemIndex
and not currentItemIndex.
Second, you may also implement carouselDidEndScrollingAnimation: delegate and check for the index:
- (void)carouselDidEndScrollingAnimation:(iCarousel *)carousel
{
NSLog(#"index: %i", carousel.currentItemIndex);
}
I am developing an application for the iPhone. The question I have is how to display a new label with a different text every .5 seconds. For example, it would display Blue, Red, Green, Orange and Purple; one right after one another. Right now I am doing this:
results = aDictionary;
NSArray *myKeys = [results allKeys];
NSArray *sortedKeys = [myKey sortedArrayUsingSelector:#selector(caseInsensitiveCompare:)];
int keyCount = [sortedKeys count];
while (flag == NO) {
NSTimeInterval timeMS = [startDate timeIntervalSinceNow] * -10000.0;
if (timeMS >= i) {
ii++;
i += 1000;
NSLog(#"endDate = %f", timeMS);
int randomNumber = rand() % keyCount + 1;
lblResult.text = [results valueForKey:[sortedKeys objectAtIndex:(randomNumber - 1)]];
result = [results valueForKey:[sortedKeys objectAtIndex:(randomNumber - 1)]];
lblResult.text = result;
}
if (ii > 25) {
flag = YES;
}
}
lblResult.text = [results valueForKey:[sortedKeys objectAtIndex:(sortedKeys.count - 1)]];
this function is called at the viewDidAppear Function and currently isn't displaying the new labels. It only displays the one at the end. Am I doing anything wrong? What would be the best method to approach this?
The problem is that you're not giving the run loop a chance to run (and therefore, drawing to happen). You'll want to use an NSTimer that fires periodically and sets the next text (you could remember in an instance variable where you currently are).
Or use something like this (assuming that items is an NSArray holding your strings):
- (void)updateText:(NSNumber *)num
{
NSUInteger index = [num unsignedInteger];
[label setText:[items objectAtIndex:index]];
index++;
// to loop, add
// if (index == [items count]) { index = 0; }
if (index < [items count]) {
[self performSelector:#selector(updateText:) withObject:[NSNumber numberWithUnsignedInteger:index] afterDelay:0.5];
}
}
At the beginning (e.g. in viewDidAppear:), you could then call
[self updateText:[NSNumber numberWithUnsignedInteger:0]];
to trigger the initial update.
You'd of course need to ensure that the performs are not continuing when your view disappears, you could do this by canceling the performSelector, or if you're using a timer, by simply invalidating it, or using a boolean, or ...
And if you want to get really fancy, use GCD :)
I have this code
NSArray *food = [NSArray arrayWithObjects:#"Apples:",#"bacon",#"corn",#"donuts",#"elfs",#"fidge",nil];
for(int i = 0; i<6; i++){
NSLog(#"item at index %i is %#",i,[food objectAtIndex:i]);
}
and right now they are all printed to the console instantly. How can I make a variable to decrease or increase the speed they are logged?
I'm new at objective-C so thanks a lot for your help! :)
NSArray *food = [NSArray arrayWithObjects:#"Apples:",#"bacon",#"corn",#"donuts",#"elfs",#"fidge",nil];
// the number of seconds to wait between printing each item
double secondsToSleep = 1.0;
for(int i = 0; i<6; i++){
[NSThread sleepForTimeInterval:secondsToSleep];
NSLog(#"item at index %i is %#",i,[food objectAtIndex:i]);
}
There's a sleepForTimeInterval: method on NSThread that might do what you're looking for. The documentation is here.
Edit: Sorry, for Objective-C newbies, you would just type something like this:
[NSThread sleepForTimeInterval:0.01];
See the sleep() function.
I need to pick string valur from an NSMutableArray then save it into a plist. I've builded an NSMutableArray to display infos in table View. Maximum allowed index is 8. (paste just two in example)
The problem if the String doesn't exist, I get the following error:
sDict is a dictionary for saving datas to a property list file.
the code:
- (IBAction)save:(id)sender {
(...)
NSString *One;
NSString *Two;
...etc
if ([self.smOne objectAtIndex:0])
One = [self.smOne objectAtIndex:0];
if ([self.smOne objectAtIndex:1])
Two = [self.smOne objectAtIndex:1];
...etc
if (One)
[sDict setObject:[self.smTwo objectAtIndex:0]
forKey:[UserM stringByAppendingString:One]];
[sDict setObject:[self.smThree objectAtIndex:0]
forKey:[UserS stringByAppendingString:One]];
[sDict setObject:[self.smFour objectAtIndex:0]
forKey:[UserP stringByAppendingString:One]];
if (Two)
[sDict setObject:[self.smTwo objectAtIndex:1]
forKey:[UserM stringByAppendingString:Two]];
[sDict setObject:[self.smThree objectAtIndex:1]
forKey:[UserS stringByAppendingString:Two]];
[sDict setObject:[self.smFour objectAtIndex:1]
forKey:[UserParM stringByAppendingString:Two]];
...etc
}
This code works if all objects are present, but fails if it miss one of the object at index.
I really don't know how to check properly if the object is present or not, cause code above seem's to don't works well.
I've tried with [self.smOne count] but as problem to pass as a Int or String to make conditions with.
Thanks for answer.
it looks like you're explicitly checking smOne from indices 1 through 8. But you also mentioned that the array can have up to 8. So if it's missing, say, 6, 7 and 8, you'd still be calling [smOne objectAtIndex:6], which would result in an NSRangeException being raised as 6 is out of bounds for the array.
try this instead:
int i = 0;
for ( NSString *aString in self.smOne )
{
[sDict setObject:[self.smTwo objectAtIndex:i]
forKey:[UserM stringByAppendingSting:aString]];
[sDict setObject:[self.smThree objectAtIndex:i]
forKey:[UserS stringByAppendingString:aString]];
[sDict setObject:[self.smFour objectAtIndex:i]
forKey:[UserP stringByAppendingString:aString]];
i++;
}
it'll go through each object in the smOne array and add the object into sDict regardless of how many items you have in smOne.
also, be careful with how you're generating your keys. there's the possibility that [UserM stringByAppendingSting:aString] won't always be unique.
Sorry to ask again but i have dificulties to find how to rebuild arrays from the key/string couple saved with the loop.
i've tried this:
int i = 0;
for (NSString *SMServ in [temp objectForKey:
[UserMen stringByAppendingFormat:#"%d",i]]){
NSString *SMMem[i];
SMMem[i] = [temp objectForKey:[UserMen stringByAppendingFormat:#"%d",i]];
NSArray *theArray = [ NSArray arrayWithObjects:SMMem count:i];
i++;
}
But nothing happens.
if i try with for (i = 0; i < 9; i ++) and (i + 1) instead of [i], i get same bounds errors in the first example.
thanks again for help.
Well, finally it ,works. Thanks for link to the documentation, i read too fast last time.
I'm sure this is not the cleanest way, but it works with this loop:
for (key in sDict) {
if ([sDict valueForKey:[UserMen stringByAppendingFormat:#"%d",i]]) {
tempMe = [sDict valueForKey:[UserMen stringByAppendingFormat:#"%d",i]];
if (tempMe) {
[manArray insertObject:tempMe atIndex:(0 + a)];
[bankArray insertObject:[NSString stringWithFormat:#"%d",i] atIndex:(0 + a)];
a++;
}
}
if ([sDict valueForKey:[UserSerial stringByAppendingFormat:#"%d",i]]) {
SMSer = [sDict valueForKey:[UserSerial stringByAppendingFormat:#"%d",i]];
if (SMSer) {
[serArray insertObject:SMSer atIndex:(0 + b)];
b++;
}
}
if ([sDict valueForKey:[UserPart stringByAppendingFormat:#"%d",i]]) {
SMPart = [sDict valueForKey:[UserPart stringByAppendingFormat:#"%d",i]];
if (SMPart) {
[partArray insertObject:SMPart atIndex:(0 + c)];
c++;
}
}
i++;
}