Drag control example and how to save an indicator value??
Hi everyone,
I want to drag boolean buttons on my front panel in the run time, how can I do it?
I remember I have seen an ni example for that, it's a card on the front panel, but I don't remember the name TT anybody knows?
and the second question is how to save an indicator value, like the first time you set the value and close the vi and run it again, the value will remain unless you change it in the second run time?
thanks in advance
Solved!
Go to Solution.
THe attached (in LV 8.6) is a quick and dirty dragging example.
When a mouse down event is detected the offset between the mouse and the top left corner is calculated and cached in a shift register.
Mouse moves use the offset to etermine the new location.
Mosue up clears a boolean used to track if we are actively dragging at the moment.
Have fun!
Ben
Message Edited by Ben on 04-15-2009 07:54 AM
Ben Rayner
I am currently active on.. MainStream Preppers
Rayner's Ridge is under construction
Attachments:
Drag.vi 11 KB
Drag_This.PNG 59 KB
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HI, I am small iphone developer,i have one problem in my app,please give the guidence to me.
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#import <UIKit/UIKit.h>
@interface demoprojectViewController : UIViewController<UIImagePickerControllerDelegate,UINavigationControllerDelegate >
UIImageView *imageView,*editingimage,*maskimage;
UIButton *takePictureButton;
UIButton *selectFromCameraRollButton;
UIView *myview;
@property(nonatomic,retain)IBOutlet UIImageView *imageView;
@property(nonatomic,retain)IBOutlet UIImageView *maskimage;
@property(nonatomic,retain)IBOutlet UIImageView *editingimage;
@property(nonatomic,retain)IBOutlet UIButton *takePictureButton;
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@property(nonatomic,retain )IBOutlet UIView *myview;
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demoprojectViewController.m
#import "demoprojectViewController.h"
@implementation demoprojectViewController
@synthesize imageView,editingimage,maskimage;
@synthesize takePictureButton;
@synthesize selectFromCameraRollButton;
@synthesize myview;
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CGFloat netRotation;
CGPoint netTranslation;
NSArray *images;
int imageIndex = 0;
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- (void)viewDidLoad
// maskimage=[[UIImageView alloc]initWithFrame:CGRectMake(50, 50, 150, 150)];
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if ([UIImagePickerController isSourceTypeAvailable:
UIImagePickerControllerSourceTypeCamera]) {
takePictureButton.hidden = NO;
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tapGesture.numberOfTapsRequired = 1;
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[tapGesture release];
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initWithTarget:self
action:@selector(handlePanGesture:)];
[maskimage addGestureRecognizer:panGesture];
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images = [[NSArray alloc] initWithObjects:
@"1.png",
@"2.png",
@"3.png", nil];
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[[UISwipeGestureRecognizer alloc]
initWithTarget:self
action:@selector(handleSwipeGesture:)];
[maskimage addGestureRecognizer:swipeGesture];
[swipeGesture release];
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UISwipeGestureRecognizer *swipeLeftGesture =
[[UISwipeGestureRecognizer alloc]
initWithTarget:self
action:@selector(handleSwipeGesture:)];
swipeLeftGesture.direction = UISwipeGestureRecognizerDirectionLeft;
[maskimage addGestureRecognizer:swipeLeftGesture];
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[super viewDidLoad];
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lastScaleFactor + (factor-1));
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netTranslation.y + translation.y);
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netTranslation.y += translation.y;
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switch (direction) {
case UISwipeGestureRecognizerDirectionUp:
NSLog(@"up");
break;
case UISwipeGestureRecognizerDirectionDown:
NSLog(@"down");
break;
case UISwipeGestureRecognizerDirectionLeft:
imageIndex++;
break;
case UISwipeGestureRecognizerDirectionRight:
imageIndex -- ;
break;
default:
break;
imageIndex = (imageIndex < 0) ? ([images count] - 1):
imageIndex % [images count];
imageView.image = [UIImage imageNamed:
[images objectAtIndex:imageIndex]];
#pragma mark -
- (IBAction)getCameraPicture:(id)sender {
UIImagePickerController *picker =
[[UIImagePickerController alloc] init];
picker.delegate = self;
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UIImagePickerControllerSourceTypeSavedPhotosAlbum;
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[maskimage removeFromSuperview];
[picker release];
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picker.delegate = self;
picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
[self presentModalViewController:picker animated:YES];
[maskimage removeFromSuperview];
[picker release];
else {
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initWithTitle:@"Error accessing photo library"
message:@"Device does not support a photo library"
delegate:nil
cancelButtonTitle:@"Drat!"
otherButtonTitles:nil];
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imageView.image = image;
[picker dismissModalViewControllerAnimated:YES];
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maskimage.image=[UIImage imageNamed:@"1.png"];
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-(IBAction)done
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self.takePictureButton = nil;
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I am attempting to build a widget that features sliders (general object) for iBooks in iAd producer. I added sliders in iAd Producer; have a minimum setting of 0.0, maximum of 10, and moving at increments of 0.5. I tested them in the preview funciton
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I noticed that certain apps, like Facebook, Pinterest and Instagram, are starting to hog up a bunch of memory on my device. When checking the usage details, I don't have the option to clear out the 'documents & data' within the app. I've been reading
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Faces will not identify any faces in my iPhoto
I have tried to use Faces and have had no luck. I have spent a great deal of time with Apple tech support and they are baffled as to why the program is not working. I have taken many pictures of myself with Photo Booth loaded them into iPhoto and tag