In order to make my custom UIImagePickerSourceTypeCamera, I had to do this:
pickerOne = [[UIImagePickerController alloc] init];
pickerOne.delegate = self;
pickerOne.sourceType = UIImagePickerControllerSourceTypeCamera;
pickerOne.showsCameraControls = NO;
pickerOne.navigationBarHidden = YES;
pickerOne.toolbarHidden = YES;
pickerOne.wantsFullScreenLayout = YES;
But now, when I take a picture like this:
[cameraButton addTarget:pickerOne
action:#selector(takePicture)
forControlEvents:UIControlEventTouchUpInside];
it doesn't show the shutter when you take the picture. Is there a way to show it programmatically?
It is possible. The trick is to do the following:
Enable the camera controls on initializing the picker (this will enable the shutter view).
pickerOne.showsCameraControls = YES;
Overlay the camera controls with your own view which has the cameraButton
In your takePicture: method do the following:
pickerOne.showsCameraControls = NO;
[[NSRunLoop currentRunLoop] runUntilDate:[NSDate dateWithTimeIntervalSinceNow:0.0]];
[pickerOne takePicture];
In the imagePickerController:didFinishPickingMediaWithInfo: method do the following:
pickerOne.showsCameraControls = YES; // perform on main thread
There is no way to control the "shutter" affect. You can however create your own image and add the affect in there.
Related
In iOS7 the build-in camera app doesn't go into the preview screen after taking a picture, is there any way that the UIImagePicker can behave like that.
UIImagePickerController * imagePicker = [[UIImagePickerController alloc] init];
imagePicker.delegate = self;
imagePicker.sourceType = UIImagePickerControllerSourceTypeCamera;
imagePicker.cameraFlashMode = UIImagePickerControllerCameraFlashModeOff;
I know another solution is to create a custom camera using the AVFoundation class, but that is beyond my knowledge at this point and I really like the looks of the default camera.
Update
So after some more research I found out I could create my own shutter button and set it as a camera overlay. Here is what I did
UIButton *shutter = [UIButton buttonWithType:UIButtonTypeRoundedRect];
[shutter addTarget:self action:#selector(shootPicture) forControlEvents:UIControlEventTouchUpInside];
[shutter setTitle:#"S" forState:UIControlStateNormal];
shutter.frame = CGRectMake(50, 50, 60, 60);
UIView *layoutView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 320, 480)];
layoutView.opaque = NO;
layoutView.backgroundColor = [UIColor clearColor];
[layoutView addSubview:shutter];
For the 'shootPicture' method
- (void) shootPicture
{
[picker takePicture];
[self imagePickerController:self.camCtl didFinishPickingMediaWithInfo:nil];
}
If I just have the picker call 'takePicture' I will still get the preview, so instead I forced the picker to call didFinishPickingMediaWithInfo right after taking picture. The result is I don't see the preview screen HOWEVER I don't see the picture either. I know I put 'nil' in didFinishPickingMediaWithInfo because I don't know what to put in at this point. I also know it took a picture is in cache somewhere but I really have no idea how to get it.
Any idea would be greatly appreciated =)
This solution works for me:
self.pickerController.allowsEditing = false
I'm not great at creating views in code yet so this is probably a simple question.
In my iPad app I have this image picker and I would like to present it in a 500x500 modal view centred on screen OR in a formsheet centre-screen:
_imagePicker = [[UIImagePickerController alloc] init];
_imagePicker.delegate = self;
_imagePicker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
_imagePicker.allowsEditing = NO;
_imagePicker.navigationBar.tintColor = [UIColor redColor];
_imagePicker.navigationBar.backgroundColor = [UIColor greenColor];
Now what do I do to both create the modal view or formsheet and present the image picker inside it?
(I've looked through many examples and Q&A and just can't find a simple answer. Thanks for your help!)
Form sheet is a modal presentation type. You change that by modifying the modalPresentationStyle property of a view controller before presentation.
_imagePicker.modalPresentationStyle = UIModalPresentationFormSheet;
[self presentViewController:_imagePicker animated:YES completion:nil];
However, if you read the documentation of UIImagePickerController, you will see that Apple requires you to present the view controller inside a popover.
So:
if([_popoverController popoverVisible])
{
[_popoverController dismissPopoverAnimated:NO];
_popoverController = nil;
}
_popoverController = [[UIPopoverController alloc] initWithContentViewController:_imagePicker];
[_popoverController setDelegate:self];
[_popoverController presentPopoverFromBarButtonItem:_button permittedArrowDirections:UIPopoverArrowDirectionAny animated:YES];
I have a scrollView with paging. I declare it:
if(_fullPosterScroll == nil) _fullPosterScroll = [[UIScrollView alloc] initWithFrame:rc];
[_fullPosterScroll setDelegate:self];
[_fullPosterScroll setBackgroundColor:[UIColor blackColor]];
[_fullPosterScroll setCanCancelContentTouches:NO];
_fullPosterScroll.indicatorStyle = UIScrollViewIndicatorStyleWhite;
_fullPosterScroll.clipsToBounds = NO;
_fullPosterScroll.pagingEnabled = YES;
_fullPosterScroll.alwaysBounceHorizontal = NO;
_fullPosterScroll.directionalLockEnabled = YES;
And after a tap i call a method:
[_fullPosterScroll setContentOffset:CGPointMake(_selectedPosterPosition*(_fullPosterScroll.frame.size.width), 0) animated:YES];
NSLog(#"%f",_fullPosterScroll.contentOffset.y);
Why after that in Log i have for example 225.00 ?! This should be 0!
I can't see anything wrong with the code you've posted, but you should check to make sure that setContentOffset isn't triggering any delegate methods that are changing offset.
Also, Apple have a sample project, PageControl, that does exactly what you want, so you should look at that if you want a complete example.
I am using an applicationMusicPlayer and when i try to change the volume appear the visual notification, as shown in the picture.
Here the code I am using:
[MPMusicPlayerController applicationMusicPlayer] setVolume:newVolune];
Anyone knows how to hide this notification?
I don't know where the docs says so, but if you add a MPVolumeView view to your app the system volume overlay goes away. Even if it is not visible:
- (void) viewDidLoad
{
[super viewDidLoad];
MPVolumeView *volumeView = [[MPVolumeView alloc] initWithFrame: CGRectZero];
[self.view addSubview: volumeView];
[volumeView release];
...
}
You can use the hardware volume buttons, the setVolume method or directly interact with the control (if visible) that the overlay doesn't show up.
For iOS6 I had to set an image with alpha 0 and non-zero size to the MPVolumeView's image fields in order to get the default volume change notification to disappear.
// hide the hardware volume slider
UIImage *thumb = [[UIImage alloc] initWithCIImage:[UIImage imageNamed:#"volumeHider"].CIImage scale:0.0 orientation:UIImageOrientationUp];
MPVolumeView *hwVolume = [[MPVolumeView alloc] initWithFrame:self.frame];
[hwVolume setUserInteractionEnabled:NO];
hwVolume.showsRouteButton = NO;
[hwVolume setVolumeThumbImage:thumb forState:UIControlStateNormal];
[hwVolume setMinimumVolumeSliderImage:thumb forState:UIControlStateNormal];
[hwVolume setMaximumVolumeSliderImage:thumb forState:UIControlStateNormal];
[self addSubview:hwVolume];
This made the MPVolumeView be "visible" on the screen, but invisible to the user.
I encountered the same issue recently. Instead of adding the MPVolumeView to current view controller's view, I add it to the application's window once at the start of the app:
CGRect rect = CGRectMake(-500, -500, 0, 0);
MPVolumeView *volumeView = [[MPVolumeView alloc] initWithFrame:rect];
[self.window addSubview:volumeView];
This works in both iOS 7 and 8.
Swift 3
You can hide the System MPVolumeView using
override func viewDidLoad() {
super.viewDidLoad()
let volumeView = MPVolumeView(frame: CGRect.zero)
self.view.addSubview(volumeView)
}
I had success with this in iOS 6. Although it wouldn't perform well. It caused quite a bit of lag when sliding the thumbImage. I did have to take out the last 2 lines of code in order for this to work.
[volumeView release];
...
For me, on iOS 7, none of above solutions worked. Here is how I did it:
_volume = [[MPVolumeView alloc] initWithFrame: CGRectMake(-100,-100,16,16)];
_volume.showsRouteButton = NO;
_volume.userInteractionEnabled = NO;
[self.view addSubview:_volume];
[_volume release];
That is, simply set MPVolumeView's frame to an off-screen location such as (-100,-100).
hi I have a problem I made an application based on apples sample app called photoscroller and i want to add a login screen.but when i add it the showed view move upward 10-15 pixels and the main window is visible underneath.I ask why?
Parts of my code:
at view did load:
InfoViewController *infoView = [[InfoViewController alloc] initWithNibName:nil bundle:nil];
self.view = infoView.view;
[infoView release];
then later after validating the login:
CGRect pagingScrollViewFrame = [self frameForPagingScrollView];
pagingScrollView = [[UIScrollView alloc] initWithFrame:pagingScrollViewFrame];
pagingScrollView.pagingEnabled = YES;
pagingScrollView.backgroundColor = [UIColor blackColor];
pagingScrollView.showsVerticalScrollIndicator = NO;
pagingScrollView.showsHorizontalScrollIndicator = NO;
pagingScrollView.contentSize = [self contentSizeForPagingScrollView];
pagingScrollView.delegate = self;
self.view = pagingScrollView;
...
I do not know why is pushed upward when i add other view.
thank for every answer
Could you past the method - (CGRect) frameForPagingScrollView, without that method it's bit harder to understand your code.
But i guess the self.view.frame and the CGRect returned from that method differ.
Further guess would be, that the difference are not 10-15 pixels, but 20 pixels (for the height of the UIStatusBar), which might be enabled in your .xib-File but is actually not displayed.