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
Related
Hi I am trying to set a background image on my detail disclosure UIButton attached to my MapView MKAnnotation callout view. Checking on stackoverflow there are consistent examples of how to set this, however it doesn't seem to work for my callout UIButton. My question is, does this not work, simply because of the mapview or am I missing something else?
Here is my code:
// If an existing pin view was not available, create one.
pinView = [[MKAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:#"CustomPinAnnotationView"];
pinView.canShowCallout = YES;
pinView.image = [UIImage imageNamed:#"Tch4"];
//pinView.calloutOffset = CGPointMake(0, 32);
pinView.rightCalloutAccessoryView = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];
UIImage *btnImage = [UIImage imageNamed:#"4stars"];
[pinView.rightCalloutAccessoryView setBackgroundImage:btnImage forState:UIControlStateNormal];
I receive the error on the final line. Error is: No Visable interface for UIView declares the selector 'setbackgroundimage: forstate'
Thanks for your help with this
Your problem is rightCalloutAccessoryView returns a UIView instance. And UIView does not respond to setBackgroundImage:forState: method.
What you are looking for is to add a UIButton instead something like this:
UIButton *infoButton = [UIButton buttonWithType:UIButtonTypeCustom];
infoButton.frame = CGRectMake(0, 0, 32, 32); // Set your own frame
[infoButton setBackgroundImage:btnImage forState:UIControlStateNormal];
[infoButton setBackgroundImage:btnImage forState:UIControlStateSelected];
pinView.rightCalloutAccessoryView = infoButton;
you cant set background image if your typebutton DetailDisclosure.
you can addsubview image to rightCalloutAccessoryView but without button..
so if you still use typebutton DetailDisclosure you cant set background
I am trying to position UILabel relative to screen resolution (iPhone v iPad) so that the UILabel does not interfere with splash screen graphics at start-up. When the app was iPhone only, the label was located properly. Once the app was made universal, the Label interfered with the image on iPad (of course)
I am using the method below, which works fine, but it is not very forward thinking in terms of new devices and/or new screen resolutions.
Can anyone suggest a more efficient way to display the UILabel "Connecting to Server..." within the area circled in red on the attached image at the link below (I do not have auth to post images here yet)?
UILabel *loadingLabel;
if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPhone)
{
loadingLabel = [[UILabel alloc] initWithFrame:CGRectMake(0, 350, self.window.frame.size.width, 20)];
}
else
{
loadingLabel = [[UILabel alloc] initWithFrame:CGRectMake(0, 700, self.window.frame.size.width, 20)];
}
loadingLabel.text = #" Connecting to Server...";
loadingLabel.textAlignment = UITextAlignmentCenter;
loadingLabel.textColor = [UIColor whiteColor];
loadingLabel.backgroundColor = [UIColor clearColor];
Splash Screen
You can use the autoresizingMask property to accomplish it.
set your origin.y on the label to be self.window.bounds.size.height - 200 or so. Then set the autoresizingMask to be UIViewAutoresizingMakFlexibleBottomMargin
I'm using this code to insert an UIActivityIndicatorView to my toolbar
-(void)addActivityIndicatorToToolbar {
UIActivityIndicatorView *activityIndicator = [[UIActivityIndicatorView alloc] initWithFrame:CGRectMake(0, 0, 20, 20)];
activityIndicator.userInteractionEnabled = YES;
activityIndicator.activityIndicatorViewStyle = UIActivityIndicatorViewStyleWhite;
[activityIndicator startAnimating];
UIBarButtonItem *barButton = [[UIBarButtonItem alloc] initWithCustomView:activityIndicator];
barButton.target = self;
barButton.action = #selector(playButtonPressed:);
NSMutableArray *toolbarItemsMutable = [self.toolbar.items mutableCopy];
[toolbarItemsMutable replaceObjectAtIndex:0 withObject:barButton];
self.toolbar.items = toolbarItemsMutable;
}
However, when I tap the UIActivityIndicatorView the action (playButtonPressed) is not performed.
How can I correct this?
It seems more likely that you want a button with an activity indicator inside it. You can do this by creating a button with a custom view as described in this post. Then you can set the action of this button as normal, and you'll probably want to retain a reference to the activity indicator to start and stop it.
I ended up implementing a poor man's solution by adding an extra view on top of the activityIndicatorView with a gestureRecognizer.
This is a quite old question but why don't you directly add a UITapGestureRecognizer instance to your UIActivityIndicatorView instance ? (works fine on iOS 8.2, I didn't test yet on previous versions).
I am adding custom navigation buttons to my navigation bars via the following code.
//Instance method in CustomNavButton Class
-(UIButton*)setupButtonWithImage:(UIImage*)image andFrame:(CGRect)frame
{
UIButton *button = [[[UIButton alloc]initWithFrame:frame]autorelease];
UIImageView *imageView = [[UIImageView alloc]initWithFrame:CGRectMake((frame.size.width-20)/2, (frame.size.height-20)/2, 20, 20)];
imageView.image = image;
UIImage *buttonImageNormal = [UIImage imageNamed:#"customBtn_black"];
UIImage *stretchableButtonImageNormal = [buttonImageNormal
stretchableImageWithLeftCapWidth:12 topCapHeight:0];
button.titleLabel.font = [UIFont boldSystemFontOfSize:12];
[button setBackgroundImage:stretchableButtonImageNormal
forState:UIControlStateNormal];
[button setTitleShadowColor:[UIColor whiteColor] forState:UIControlStateNormal];
[button setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
[button addSubview:imageView];
return button;
}
//Call CustomNavButton and add to Navbar
- (void)viewDidLoad
{
[super viewDidLoad];
//Add left invite friends button
CustomNavButton *leftButton = [[CustomNavButton alloc]initWithImage:[UIImage imageNamed:#"friends_1"] andFrame:CGRectMake(0, 0, 40, 32)];
[leftButton.customNavButton addTarget:self action:#selector(inviteButtonPressed) forControlEvents:UIControlEventTouchUpInside];
UIBarButtonItem *leftBarButton = [[UIBarButtonItem alloc]initWithCustomView:leftButton];
self.navigationItem.leftBarButtonItem = leftBarButton;
[leftButton release];
}
The navigation buttons appear fine on my iPhone (IOS5 with Retina Display)
However, the buttons look distorted on my simulator (or non-retina display)
How can I resolve this? How can I display the buttons properly even for non-retina displays?
Note that I have created the #2x buttons for this as well
EDIT:
It seems like the issue likes with the stretching of the image
UIImage *stretchableButtonImageNormal = [buttonImageNormal
stretchableImageWithLeftCapWidth:12 topCapHeight:0];
If I change the leftCapWidth value to 0, the buttons on the simulator looks better (but still bad).
But by doing this, it will cause my retina display button look a little distorted (seems like I can't win).
Can anyone advise if the problem does really lie here, and how I can alter the values so that it works well for both retina and non-retina displays?
Do you have two files? MyImage.png and MyImage#2x.png? It looks like the system is trying to resize the #2x file by scaling it down, which usually causes some jaggedness like this when it is simply scaled down.
MyImage.png should be half the size of MyImage#2x.png.
Your not setting the file format .png or whatever it is you have. And as Chris said you need two files regular and #2x.
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).