Hi everyone,
Today, I'm giving you the source code of UIPanGestureRecognizer for iPhone.
Follow 2-3 simple steps as given below:
1) Put below code into your .header file of any viewcontroller class.
#import <UIKit/UIKit.h>
@interface ViewController : UIViewController<UIGestureRecognizerDelegate>
{
IBOutlet UIView *viewOrange;
IBOutlet UIView *viewBrown;
IBOutlet UIView *viewPurple;
}
@property(nonatomic,retain) IBOutlet UIView *viewOrange;
@property(nonatomic,retain) IBOutlet UIView *viewBrown;
@property(nonatomic,retain) IBOutlet UIView *viewPurple;
@end
2) Put below code into your .m file of same viewcontroller class.
#import "ViewController.h"
@implementation ViewController
@synthesize viewOrange;
@synthesize viewBrown;
@synthesize viewPurple;
CGPoint translatedPoint;
NSInteger _firstX;
NSInteger _firstY;
NSInteger numberofView;
CGSize viewSize;
float currentView;
BOOL isBegan;
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Release any cached data, images, etc that aren't in use.
}
#pragma mark - View lifecycle
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
numberofView = 3;
viewSize = CGSizeMake(320.0, 480.0);
viewOrange.frame = CGRectMake(0.0, 0.0, 320.0, 480.0);
viewPurple.frame = CGRectMake(320.0, 0.0, 320.0, 480.0);
viewBrown.frame = CGRectMake(640.0, 0.0, 320.0, 480.0);
UISwipeGestureRecognizer *swipegestureRecognizer = [[UIPanGestureRecognizer alloc]initWithTarget:self action:@selector(handleSwipe:)];
[swipegestureRecognizer setDelegate:self];
[self.view addGestureRecognizer:swipegestureRecognizer];
[swipegestureRecognizer release];
}
- (void)viewDidUnload
{
[super viewDidUnload];
// Release any retained subviews of the main view.
// e.g. self.myOutlet = nil;
}
-(IBAction)handleSwipe:(UIPanGestureRecognizer *)sender
{
translatedPoint = [sender translationInView:self.view];
if([sender state] == UIGestureRecognizerStateBegan)
{
if (self.viewOrange.frame.origin.x >= -((numberofView-1)*viewSize.width) && self.viewOrange.frame.origin.x <= 0.0)
{
_firstX = self.viewOrange.frame.origin.x;
_firstY = self.viewOrange.frame.origin.y;
if (viewOrange.frame.origin.x==0) {
currentView=0;
}else if (viewPurple.frame.origin.x==0) {
currentView=1;
}else if (viewBrown.frame.origin.x==0) {
currentView=2;
}
}
}
else if([sender state] == UIGestureRecognizerStateChanged)
{
if ([sender velocityInView:self.view].x >= 600.0)
{
if (!isBegan)
{
if (self.viewOrange.frame.origin.x < 0.0)
{
isBegan = YES;
NSLog(@"Velocity Changed.");
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:0.2];
[UIView setAnimationCurve:UIViewAnimationCurveEaseOut];
[viewOrange setFrame:CGRectMake(viewOrange.frame.origin.x + viewOrange.frame.size.width, 0.0, viewOrange.frame.size.width, viewOrange.frame.size.height)];
viewPurple.frame = CGRectMake(viewOrange.frame.origin.x + viewOrange.frame.size.width, 0.0, viewPurple.frame.size.width, viewPurple.frame.size.height);
viewBrown.frame = CGRectMake(viewPurple.frame.origin.x + viewPurple.frame.size.width, 0.0, viewBrown.frame.size.width, viewBrown.frame.size.height);
[UIView commitAnimations];
}
}
}
else if ([sender velocityInView:self.view].x <= -600.0)
{
if (!isBegan)
{
if (self.viewOrange.frame.origin.x > -((numberofView-1)*viewSize.width))
{
isBegan = YES;
NSLog(@"Velocity Changed.");
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:0.2];
[UIView setAnimationCurve:UIViewAnimationCurveEaseOut];
[viewOrange setFrame:CGRectMake(viewOrange.frame.origin.x - viewOrange.frame.size.width, 0.0, viewOrange.frame.size.width, viewOrange.frame.size.height)];
viewPurple.frame = CGRectMake(viewOrange.frame.origin.x + viewOrange.frame.size.width, 0.0, viewPurple.frame.size.width, viewPurple.frame.size.height);
viewBrown.frame = CGRectMake(viewPurple.frame.origin.x + viewPurple.frame.size.width, 0.0, viewBrown.frame.size.width, viewBrown.frame.size.height);
[UIView commitAnimations];
}
}
}
else
{
if (self.viewOrange.frame.origin.x >= -((numberofView-1)*viewSize.width) && self.viewOrange.frame.origin.x <= 0.0)
{
NSLog(@"State Changed.");
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:0.2];
[UIView setAnimationCurve:UIViewAnimationCurveEaseOut];
translatedPoint = CGPointMake(_firstX + translatedPoint.x, 0.0);
[viewOrange setFrame:CGRectMake(translatedPoint.x, 0.0, viewOrange.frame.size.width, viewOrange.frame.size.height)];
viewPurple.frame = CGRectMake(viewOrange.frame.origin.x + viewOrange.frame.size.width, 0.0, viewPurple.frame.size.width, viewPurple.frame.size.height);
viewBrown.frame = CGRectMake(viewPurple.frame.origin.x + viewPurple.frame.size.width, 0.0, viewBrown.frame.size.width, viewBrown.frame.size.height);
[UIView commitAnimations];
}
}
}
else if([sender state] == UIGestureRecognizerStateEnded)
{
NSLog(@"State Ended On That ");
if (self.viewOrange.frame.origin.x >= -((numberofView-1)*viewSize.width) && self.viewOrange.frame.origin.x <= 0.0)
{
NSLog(@"%f",viewOrange.frame.origin.x);
NSLog(@"%f",viewPurple.frame.origin.x);
NSLog(@"%f",viewBrown.frame.origin.x);
if (currentView==0) {
if (viewOrange.frame.origin.x<0 ){
if (viewOrange.frame.origin.x<-160) {
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:0.2];
[UIView setAnimationCurve:UIViewAnimationCurveEaseOut];
[viewOrange setFrame:CGRectMake(-320, 0.0, viewOrange.frame.size.width, viewOrange.frame.size.height)];
viewPurple.frame = CGRectMake(viewOrange.frame.size.width+viewOrange.frame.origin.x , 0.0, viewPurple.frame.size.width, viewPurple.frame.size.height);
[UIView commitAnimations];
}else{
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:0.2];
[UIView setAnimationCurve:UIViewAnimationCurveEaseOut];
[viewOrange setFrame:CGRectMake(0.0, 0.0, viewOrange.frame.size.width, viewOrange.frame.size.height)];
viewPurple.frame = CGRectMake(320, 0.0, viewPurple.frame.size.width, viewPurple.frame.size.height);
[UIView commitAnimations];
}
}
}else if(currentView==1){
if (viewPurple.frame.origin.x<0){
if (viewPurple.frame.origin.x<-160) {
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:0.2];
[UIView setAnimationCurve:UIViewAnimationCurveEaseOut];
[viewOrange setFrame:CGRectMake(-640, 0.0, viewOrange.frame.size.width, viewOrange.frame.size.height)];
viewPurple.frame = CGRectMake(-320 , 0.0, viewPurple.frame.size.width, viewPurple.frame.size.height);
viewBrown.frame = CGRectMake(0.0, 0.0, viewBrown.frame.size.width, viewBrown.frame.size.height);
[UIView commitAnimations];
}else {
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:0.2];
[UIView setAnimationCurve:UIViewAnimationCurveEaseOut];
[viewOrange setFrame:CGRectMake(-320.0, 0.0, viewOrange.frame.size.width, viewOrange.frame.size.height)];
viewPurple.frame = CGRectMake(0.0 , 0.0, viewPurple.frame.size.width, viewPurple.frame.size.height);
viewBrown.frame = CGRectMake(320.0, 0.0, viewBrown.frame.size.width, viewBrown.frame.size.height);
[UIView commitAnimations];
}
}else{
if (viewPurple.frame.origin.x>160) {
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:0.2];
[UIView setAnimationCurve:UIViewAnimationCurveEaseOut];
[viewOrange setFrame:CGRectMake(0.0, 0.0, viewOrange.frame.size.width, viewOrange.frame.size.height)];
viewPurple.frame = CGRectMake(320 , 0.0, viewPurple.frame.size.width, viewPurple.frame.size.height);
viewBrown.frame = CGRectMake(640.0, 0.0, viewBrown.frame.size.width, viewBrown.frame.size.height);
[UIView commitAnimations];
}else{
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:0.2];
[UIView setAnimationCurve:UIViewAnimationCurveEaseOut];
[viewOrange setFrame:CGRectMake(-320.0, 0.0, viewOrange.frame.size.width, viewOrange.frame.size.height)];
viewPurple.frame = CGRectMake(0.0 , 0.0, viewPurple.frame.size.width, viewPurple.frame.size.height);
viewBrown.frame = CGRectMake(320.0, 0.0, viewBrown.frame.size.width, viewBrown.frame.size.height);
[UIView commitAnimations];
}
}
}else if(currentView==2){
if (viewBrown.frame.origin.x>0){
if (viewBrown.frame.origin.x>160) {
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:0.2];
[UIView setAnimationCurve:UIViewAnimationCurveEaseOut];
[viewOrange setFrame:CGRectMake(-320.0, 0.0, viewOrange.frame.size.width, viewOrange.frame.size.height)];
viewPurple.frame = CGRectMake(0.0 , 0.0, viewPurple.frame.size.width, viewPurple.frame.size.height);
viewBrown.frame = CGRectMake(320.0, 0.0, viewBrown.frame.size.width, viewBrown.frame.size.height);
[UIView commitAnimations];
}else{
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:0.2];
[UIView setAnimationCurve:UIViewAnimationCurveEaseOut];
[viewOrange setFrame:CGRectMake(-640, 0.0, viewOrange.frame.size.width, viewOrange.frame.size.height)];
viewPurple.frame = CGRectMake(-320 , 0.0, viewPurple.frame.size.width, viewPurple.frame.size.height);
viewBrown.frame = CGRectMake(0.0, 0.0, viewBrown.frame.size.width, viewBrown.frame.size.height);
[UIView commitAnimations];
}
}
}
}
isBegan = NO;
if (self.viewOrange.frame.origin.x <-((numberofView-1)*viewSize.width))
{
NSLog(@"State Changed.");
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:0.2];
[UIView setAnimationCurve:UIViewAnimationCurveEaseOut];
[viewOrange setFrame:CGRectMake(-640.0, 0.0, viewOrange.frame.size.width, viewOrange.frame.size.height)];
viewPurple.frame = CGRectMake(viewOrange.frame.origin.x + viewOrange.frame.size.width, 0.0, viewPurple.frame.size.width, viewPurple.frame.size.height);
viewBrown.frame = CGRectMake(viewPurple.frame.origin.x + viewPurple.frame.size.width, 0.0, viewBrown.frame.size.width, viewBrown.frame.size.height);
[UIView commitAnimations];
}
else if (self.viewOrange.frame.origin.x > 0)
{
NSLog(@"State Changed.");
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:0.2];
[UIView setAnimationCurve:UIViewAnimationCurveEaseOut];
[viewOrange setFrame:CGRectMake(0.0, 0.0, viewOrange.frame.size.width, viewOrange.frame.size.height)];
viewPurple.frame = CGRectMake(viewOrange.frame.origin.x + viewOrange.frame.size.width, 0.0, viewPurple.frame.size.width, viewPurple.frame.size.height);
viewBrown.frame = CGRectMake(viewPurple.frame.origin.x + viewPurple.frame.size.width, 0.0, viewBrown.frame.size.width, viewBrown.frame.size.height);
[UIView commitAnimations];
}
}
}
- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch
{
return YES;
}
- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer
{
return YES;
}
- (void)viewWillAppear:(BOOL)animated
{
[super viewWillAppear:animated];
}
- (void)viewDidAppear:(BOOL)animated
{
[super viewDidAppear:animated];
}
- (void)viewWillDisappear:(BOOL)animated
{
[super viewWillDisappear:animated];
}
- (void)viewDidDisappear:(BOOL)animated
{
[super viewDidDisappear:animated];
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
// Return YES for supported orientations
return (interfaceOrientation == UIInterfaceOrientationPortrait);
}
@end
Thanks,
Nilesh Prajapati
