implementa il pan di stile di Facebook Messenger a schermo intero con effetto simile

Question

Ho implementato UIPageviewContoller per supportare più visualizzazioni di viewcontoller a metà inferiore del mio schermo. ora la mia domanda è come supportare l'effetto panning di Facebook su questa sottoview sul mio controller di visualizzazione di pagina.

Desidero ottenere l'effetto di stile dei messaggi di Facebook che hanno applicato a fotocamera, in quanto con il dito si può visualizzare a schermo intero. e quando spostiamo verso il basso la stessa vista, si regolerà all'interno dell'originale dal punto di vista. Ihave ha allegato parte dello schermo per una migliore comprensione.

e dovrebbe sostenere gesto pop integrativo a.

ho potuto in grado di ottenere effetto simile, ma per questo ho aggiunto al fine di finestra principale in modo da vista può pan a tutto schermo, ma da questo approccio non sono in grado di raggiungere interattivo iOS pop gesto di default e questo approccio non è buono con la mia attuale implementazione di pageviewcontoller.

e se la vista viene aggiunta nella finestra che se il pulsante premuto dall'utente non viene spostato, l'elemento della finestra non si muoverà in finestra, quindi l'approccio di Windows non è corretto.

c'è qualche altro modo per ottenere un effetto simile? UIViewControllerInteractiveTransitioning può aiutare per questo?

Grazie in anticipo. So che avrò un approccio migliore da voi ragazzi che sarà più stabile per questo che aggiungere sottomenu alla finestra.

Answer 1

Hai provato ad aggiungere il gesto di scorrimento alla sottoview A?

UISwipeGestureRecognizer *swipeUp = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(didSwipeScreen:)]; 
swipeUp.direction = UISwipeGestureRecognizerDirectionUp; 
[yourSubViewA addGestureRecognizer:swipeUp]; 

ed è la manipolazione -

- (void)didSwipeScreen:(UISwipeGestureRecognizer *)gesture { 
switch (gesture.direction) { 
    case UISwipeGestureRecognizerDirectionUp: { 
     [UIView animateWithDuration:0.5 delay:0.0 options:UIViewAnimationOptionCurveLinear animations:^{ 
      [yourSubViewA setFrame:desiredFullScreenFrame]; 
     } completion:^(BOOL finished) { 
     }]; 
    } 
     break; 
    default: 
     break; 
    } 
} 

Per riportare alla posizione in cui si può aggiungere un altro gesto di scorrimento con UISwipeGestureRecognizerDirectionDown o forse solo un gesto di toccare Predefinito. E per il menu laterale MFSideMenu è bello.

Answer 2

Here, i used same code for my app for video sharing (same as facebook messenger media sharing) 

Create one Uiview Name as ViewCamera with one labelHoldText and three buttons 
    and download SCRecoder from github 

import SCRecoder class here in (.h) file and do same as below 

     #import <UIKit/UIKit.h> 
     #import "SCRecorder.h" 
     #import "SCAudioTools.h" 
     #import "SCRecorderFocusView.h" 
     #import "SCRecordSessionManager.h" 
     #import "SCTouchDetector.h" 


     @protocol VideoRecordDelegate <NSObject> 

     @optional 

     -(void)VideoRecorded:(NSURL *)assetUrl; 

     @end 

     typedef enum : NSInteger { 

      NOTRECORDING = 0, 
      RECORDING=1, 
      RETAKE, 

     } ENUMRecordType; 

     @interface ChatScreen : UIViewController<ChatCellDelegate,SCRecorderDelegate,UITableViewDataSource,UITableViewDelegate,,UIGestureRecognizerDelegate> 
     { 
      IBOutlet UIView *viewbottomForCamera; 

      __weak IBOutlet UIButton *btnViewCameraChange; 
      __weak IBOutlet UIButton *btnViewFullScree; 
      __weak IBOutlet UIButton *btnVideoSend; 


      PDColoredProgressView *progressView; 
      NSTimer *timerForVideoSend; 
      CGFloat progressValue; 
      UILabel *lblHoldtext; 
      UILabel *lblCount; 
      BOOL isCanceled,isOpen; 

      IBOutlet UIView *viewCamera; 



      //new 

      UIView *previewView; 
      CALayer *layerQ; 

      SCRecorder *_recorder; 
      UIImage *_photo; 
      SCRecordSession *_recordSession; 
      ENUMRecordType enumRecordType; 


     } 
     - (IBAction)btnInstantVideoTapped:(id)sender; 
     - (IBAction)btnViewCameraTapped:(id)sender; 
     - (IBAction)btnViewSendTapped:(id)sender; 
     - (IBAction)btnViewFullScreenTapped:(id)sender; 

     @property (strong, nonatomic) SCRecorderFocusView *focusView; 
     @property (nonatomic) float progress; 
     @property (nonatomic, strong) CAShapeLayer *progressLayer; 
     @property (nonatomic,strong) id<VideoRecordDelegate> deleagte; 

     @end 

      - (void)viewDidLoad { 

      [super viewDidLoad]; 

//lbl hold text for = @"@"Hold send button for video, tap for photo"" 
      lblHoldtext =[[UILabel alloc]init]; 
      lblHoldtext.adjustsFontSizeToFitWidth = YES; 
      [lblHoldtext setTextAlignment:NSTextAlignmentCenter]; 

      progressValue = 0; 

       // pan for swipable camera view on touch  
      UIPanGestureRecognizer *panRecognizer = [[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(handlePan:)]; 
      [panRecognizer setMinimumNumberOfTouches:1]; 
      [panRecognizer setMaximumNumberOfTouches:1]; 
      [viewCamera addGestureRecognizer:panRecognizer]; 

      //for video sharing on hold button  
      UILongPressGestureRecognizer *longGestureForSendImageORVideo = [[UILongPressGestureRecognizer alloc] init]; 
      [longGestureForSendImageORVideo addTarget:self action:@selector(LongPressForSendVideo:)]; 
      [longGestureForSendImageORVideo setMinimumPressDuration:1.0]; 
      [btnVideoSend addGestureRecognizer:longGestureForSendImageORVideo]; 

      [btnVideoSend.layer setBorderColor:[UIColor whiteColor].CGColor]; 
      //  UIColor *background = [[UIColor alloc] initWithPatternImage:[UIImage imageNamed:@"2Chat"]]; 
      [lblHoldtext setFrame:CGRectMake(20, 10, SCREENWIDTH-40, 20)]; 
      [lblHoldtext setText:@"Hold send button for video, tap for photo"]; 
      [viewCamera setFrame:CGRectMake(0, SCREENHEIGHT, SCREENWIDTH, viewCamera.frame.size.height)]; 
      [lblHoldtext setTextColor:[UIColor whiteColor]]; 
      [viewCamera addSubview:lblHoldtext]; 
      [viewCamera setBackgroundColor:[UIColor grayColor]]; 

      [self.navigationController.view addSubview:viewCamera]; 
      progressView = [[PDColoredProgressView alloc] initWithProgressViewStyle:UIProgressViewStyleDefault]; 
      progressView.frame =CGRectMake(0,viewCamera.frame.size.height-32, SCREENWIDTH, viewbottomForCamera.frame.size.height); 
      [progressView.layer setMasksToBounds:NO]; 
      [progressView setTrackTintColor:[UIColor clearColor]]; 
      progressView.progress = 0.0; 

      lblCount = [[UILabel alloc]initWithFrame:CGRectMake(40,15, 50, 30)]; 
      [lblCount setTextColor:[UIColor whiteColor]]; 
      [progressView addSubview:lblCount]; 

      //video recording 
      _recorder = [SCRecorder recorder]; 
      _recorder.sessionPreset = AVCaptureSessionPresetMedium;//[SCRecorderTools bestSessionPresetCompatibleWithAllDevices]; 
      _recorder.maxRecordDuration = CMTimeMake(VIDEODURATIONLIMIT, 1); 
      _recorder.delegate = self; 
      _recorder.autoSetVideoOrientation = YES; 

      self.focusView = [[SCRecorderFocusView alloc] initWithFrame:viewCamera.bounds]; 
      self.focusView.recorder = _recorder; 

      [viewCamera addSubview:self.focusView]; 

     // UIView *previewViewDemo = previewView; 
      _recorder.previewView = viewCamera; 
      [_recorder.videoConfiguration setSizeAsSquare:YES]; 
      //[_recorder.videoConfiguration setSize:CGSizeMake(SCREENWIDTH/2, SCREENHEIGHT/2)]; 
      _recorder.initializeRecordSessionLazily = YES; 



      [_recorder openSession:^(NSError *sessionError, NSError *audioError, NSError *videoError, NSError *photoError) { 

       //NSLog(@"==== Opened session ===="); 
       //NSLog(@"Session error: %@", sessionError.description); 
       //NSLog(@"Audio error : %@", audioError.description); 
       //NSLog(@"Video error: %@", videoError.description); 
       //NSLog(@"Photo error: %@", photoError.description); 
       //NSLog(@"======================="); 
       [self prepareCamera]; 
      }]; 



     } 
     - (void)layoutSubviews { 
      // resize your layers based on the view's new bounds 
      previewLayer.frame = viewCamera.bounds; 
     } 

     - (void)didReceiveMemoryWarning { 
      [super didReceiveMemoryWarning]; 
     } 

     -(void)viewWillAppear:(BOOL)animated 
     { 
      [super viewWillAppear:YES];  

     } 
     -(void)viewWillDisappear:(BOOL)animated 
     { 
      [super viewWillDisappear:YES]; 
      [ShareObj setIsChtScreenPresent:NO]; 
      [self.view endEditing:YES]; 
      [viewCamera removeFromSuperview]; 
      [_recorder endRunningSession]; 

      [[NSNotificationCenter defaultCenter] removeObserver:self]; 
     } 

     -(void)viewDidAppear:(BOOL)animated 
     { 
      [super viewDidAppear:YES]; 
      [_recorder startRunningSession]; 

     } 
     - (IBAction)btnInstantVideoTapped:(id)sender { 

     [self.view endEditing:YES]; 
     if (!isOpen) { 

      isOpen = YES; 
      [UIView animateWithDuration:0.5 animations:^{ 


       [_recorder.previewView setFrame:CGRectMake(0, SCREENHEIGHT-258,SCREENWIDTH,258)]; 
       _recorder.previewLayer.frame = _recorder.previewView.bounds; 
       layerQ.frame = _recorder.previewView.bounds; 
       [chatBottomView setFrame:CGRectMake(0,_recorder.previewView.frame.origin.y-chatBottomView.frame.size.height*2-12, SCREENWIDTH, chatBottomView.frame.size.height)]; 
       NSLog(@"hide frame = %@",NSStringFromCGRect(chatBottomView.frame)); 
       demoFrame=chatBottomView.frame; 

       UISwipeGestureRecognizer *panView=[[UISwipeGestureRecognizer alloc]initWithTarget:self action:@selector(handlePan:)]; 
       [_recorder.previewView addGestureRecognizer:panView]; 
       [_recorder.previewView bringSubviewToFront:viewbottomForCamera]; 
       [viewbottomForCamera bringSubviewToFront:btnViewFullScree]; 
       [viewbottomForCamera bringSubviewToFront:btnViewCameraChange]; 
       [self.navigationController.view addSubview:viewCamera]; 


      }completion:^(BOOL finished) { 


      }]; 

     } 
     else 
     { 
      isOpen = NO; 

      [UIView animateWithDuration:0.5 animations:^{ 
       CGRect frame = chatBottomView.frame; 
       frame.origin.y = SCREENHEIGHT-frame.size.height-NAVBARHEIGHT; 
       [chatBottomView setFrame:frame]; 
       [_recorder.previewView setFrame:CGRectMake(0, SCREENHEIGHT, SCREENWIDTH, viewCamera.frame.size.height)]; 
       [tblChatMessage setContentInset:UIEdgeInsetsMake(0, 0, 0, 0)]; 
       [tblChatMessage setScrollIndicatorInsets:UIEdgeInsetsMake(0, 0, 0, 0)]; 


       NSLog(@" hide frame = %@",NSStringFromCGRect(frame)); 
      } completion:^(BOOL finished) { 
       [viewCamera removeFromSuperview]; 
      }]; 
     } 
    } 

     #pragma mark Gesture Event is called here.. 
    -(void)LongPressForSendVideo: (UILongPressGestureRecognizer*)recognizer 
    { 

     CGPoint pointOfTouch = [recognizer locationInView:viewbottomForCamera]; 

     if (recognizer.state == UIGestureRecognizerStateEnded) { 

      [progressView setProgress:0.0 animated:YES]; 
      progressValue=0.0; 
      [progressView removeFromSuperview]; 
      [timerForVideoSend invalidate]; 
      timerForVideoSend =nil; 
      [layerQ removeFromSuperlayer]; 
      [btnViewCameraChange.layer setOpacity:1]; 
      [btnViewFullScree.layer setOpacity:1]; 

      [lblHoldtext setText:@"Hold send button for video, tap for photo"]; 

     } 
     else if (recognizer.state==UIGestureRecognizerStateChanged) 
     { 
      if (CGRectContainsPoint(btnVideoSend.frame, pointOfTouch)) { 
       // inside 
       [lblHoldtext setText:@"To cancel, drag your finger off send button"]; 

       NSLog(@"inside"); 
       [progressView setTintColor: [UIColor colorWithRed: 43.0/255.0 green: 134.0/255.0 blue: 225.0/255.0 alpha: 1]]; 
       [layerQ setBackgroundColor:[UIColor clearColor].CGColor]; 

      } else { 
       // outside 
       NSLog(@"outside"); 
       [lblHoldtext setText:@"Let go to delete and start over"]; 

       [progressView setTintColor:[UIColor redColor]]; 
       [layerQ setBackgroundColor:[UIColor colorWithRed:255.0/255.0 green:0/255.0 blue:0/255.0 alpha:0.2].CGColor]; 



      } 

     } 
     else if (recognizer.state==UIGestureRecognizerStateBegan) 
     { 
      layerQ = [[CALayer alloc]init]; 
      [layerQ setFrame:_recorder.previewLayer.frame]; 
      [viewCamera.layer addSublayer:layerQ]; 
      [btnViewCameraChange.layer setOpacity:0.3]; 
      [btnViewFullScree.layer setOpacity:0.3]; 
      [lblHoldtext setText:@"To cancel, drag your finger off send button"]; 

      [progressView setProgress:0.0 animated:YES]; 
      progressValue=0.0; 
      if (timerForVideoSend == nil) { 
       timerForVideoSend = [NSTimer scheduledTimerWithTimeInterval:0.1 target:self selector:@selector(progressChange) userInfo:nil repeats:YES]; 
      } 
      [progressView setTintColor: [UIColor colorWithRed: 43.0/255.0 green: 134.0/255.0 blue: 225.0/255.0 alpha: 1]]; 
      [viewCamera addSubview:progressView]; 
      [viewCamera bringSubviewToFront:viewbottomForCamera]; 

     } 

    } 
    -(void)progressChange 
    { 
     progressValue = progressValue + 0.0065; 
     [viewCamera bringSubviewToFront:lblCount]; 
     [lblCount setText:[NSString stringWithFormat:@"%.1f",progressValue]]; 
     [progressView setProgress:progressValue animated:YES]; 
    } 
    - (void)handlePan:(UIPanGestureRecognizer*)recognizer 
    { 
     CGPoint vel = [recognizer velocityInView:viewCamera]; 
     CGFloat velocityFrame = (vel.y/70); 

     if (vel.y > 0) 
     { 
      // user dragged towards the right 
      NSLog(@" down"); 


       velocityFrame = velocityFrame; 


      NSLog(@"velocity%f",velocityFrame); 

      if (_recorder.previewView.frame.size.height >= 256) { 

        _recorder.previewView.frame=CGRectMake(0, _recorder.previewView.frame.origin.y+velocityFrame, SCREENWIDTH, _recorder.previewView.frame.size.height-velocityFrame); 
        [viewbottomForCamera setBackgroundColor:COLOR_WITH_RGBA(0, 0, 0, 0)]; 
        CGFloat alphacolor = _recorder.previewView.frame.size.height/2000; 
        [viewbottomForCamera setFrame:CGRectMake(0, _recorder.previewView.frame.size.height-65, SCREENWIDTH, 65)]; 
        [viewbottomForCamera setBackgroundColor:COLOR_WITH_RGBA(37, 37, 38, alphacolor)]; 
        [lblHoldtext setFrame:CGRectMake(0, 0, 0, 0)]; 
        [progressView.layer setFrame:viewbottomForCamera.frame]; 
      } 

     } 
     else 
     { 

      velocityFrame = -(velocityFrame); 
      velocityFrame = velocityFrame; 

      NSLog(@"velocity%f",velocityFrame); 
      NSLog(@"up"); 
      if (_recorder.previewView.frame.origin.y >5) { 


       [UIView animateWithDuration:0.2 animations:^{ 


        _recorder.previewView.frame=CGRectMake(0, _recorder.previewView.frame.origin.y-velocityFrame, SCREENWIDTH, _recorder.previewView.frame.size.height+velocityFrame); 
        _recorder.previewLayer.frame = self.navigationController.view.bounds; 
        [viewbottomForCamera setFrame:CGRectMake(0,_recorder.previewView.frame.size.height-65, SCREENWIDTH, 65)]; 
        CGFloat alphacolor = viewCamera.frame.size.height/1000; 
        [lblHoldtext setFrame:CGRectMake(0, 0, 0, 0)]; 
        [progressView.layer setFrame:viewbottomForCamera.frame]; 


        if (alphacolor <= 0.6) { 
         [viewbottomForCamera setBackgroundColor:COLOR_WITH_RGBA(37, 37, 38, alphacolor)]; 
        } 
        [lblHoldtext setFrame:CGRectMake(0, 0, 0, 0)]; 

       } completion:^(BOOL finished) { 

       }]; 
      } 

     } 

     if(recognizer.state == UIGestureRecognizerStateEnded) 
     { 
      if (vel.y < 0) { 

       [UIView animateWithDuration:0.2 animations:^{ 

        _recorder.previewView.frame=CGRectMake(0, 0, SCREENWIDTH, SCREENHEIGHT); 
        [viewbottomForCamera setFrame:CGRectMake(0, _recorder.previewView.frame.size.height-65, SCREENWIDTH, 65)]; 
        CGFloat alphacolor = _recorder.previewView.frame.size.height/1000; 
        if (alphacolor <= 0.6) { 
         [viewbottomForCamera setBackgroundColor:COLOR_WITH_RGBA(37, 37, 38, alphacolor)]; 

        } 
        [progressView.layer setFrame:viewbottomForCamera.frame]; 



       } completion:^(BOOL finished) { 
        _recorder.previewLayer.frame = _recorder.previewView.bounds; 

        [lblHoldtext setFrame:CGRectMake(20, viewbottomForCamera.frame.origin.y-30, SCREENWIDTH-40, 20)]; 

       }]; 


      } 
      else 
      { 

       [UIView animateWithDuration:0.1 animations:^{ 
        [_recorder.previewView setFrame:CGRectMake(0, SCREENHEIGHT-258,SCREENWIDTH,258)]; 
        [viewbottomForCamera setFrame:CGRectMake(0, _recorder.previewView.frame.size.height-65, SCREENWIDTH, 65)]; 
        [viewbottomForCamera setBackgroundColor:COLOR_WITH_RGBA(0, 0, 0, 0)]; 
        [progressView.layer setFrame:viewbottomForCamera.frame]; 




       }completion:^(BOOL finished) { 
        _recorder.previewLayer.frame = _recorder.previewView.bounds; 

        [lblHoldtext setFrame:CGRectMake(20, 10, SCREENWIDTH-40, 20)]; 

       }]; 
      } 
     } 
    } 
    -(IBAction)btnViewCameraTapped:(id)sender 
    { 

    } 
    //take image 
    - (IBAction)btnViewSendTapped:(id)sender { 

    // AVCaptureConnection *videoConnection = nil; 
    //  
    // for (AVCaptureConnection *connection in stillImageOutput.connections) { 
    //   
    //  for (AVCaptureInputPort *ports in [connection inputPorts]) { 
    //    
    //   if ([[ports mediaType] isEqual:AVMediaTypeVideo]) { 
    //    videoConnection = connection; 
    //    break; 
    //   } 
    //  } 
    //  if (videoConnection) { 
    //   break; 
    //  } 
    // } 
    //  
    // [stillImageOutput captureStillImageAsynchronouslyFromConnection:videoConnection completionHandler:^(CMSampleBufferRef imageDataSampleBuffer, NSError *error) { 
    //  
    //  if (imageDataSampleBuffer !=nil) { 
    //    
    //   NSData *imagedata = [AVCaptureStillImageOutput jpegStillImageNSDataRepresentation:imageDataSampleBuffer]; 
    //   UIImage *image =[UIImage imageWithData:imagedata]; 
    //  } 
    // }]; 
    } 
    //open/Close view 
    - (IBAction)btnViewFullScreenTapped:(id)sender { 

     [lblHoldtext setFrame:CGRectMake(0, 0, 0, 0)]; 
    // [lblHoldtext setText:@"To cancel, drag your finger off send button"]; 
    // [lblHoldtext setText:@"Let go to delete and start over"]; 

     if (_recorder.previewView.frame.size.height >= SCREENHEIGHT/2+100) { 

      [UIView animateWithDuration:0.5 animations:^{ 

       [viewCamera setFrame:CGRectMake(0, SCREENHEIGHT-256,SCREENWIDTH,258)]; 
       [lblHoldtext setFrame:CGRectMake(20, 10, SCREENWIDTH-40, 20)]; 
       [viewbottomForCamera setFrame:CGRectMake(0, _recorder.previewView.frame.size.height-65, SCREENWIDTH, 65)]; 
       [viewbottomForCamera setBackgroundColor:COLOR_WITH_RGBA(0, 0,0,0)]; 
       [progressView.layer setFrame:viewbottomForCamera.frame]; 


      }completion:^(BOOL finished) { 
       _recorder.previewLayer.frame = viewCamera.bounds; 

      }]; 
     } 
     else 
     { 
      [UIView animateWithDuration:0.5 animations:^{ 
       viewCamera.frame=CGRectMake(0, 0, SCREENWIDTH, SCREENHEIGHT); 
       _recorder.previewLayer.frame = viewCamera.bounds; 
       [viewbottomForCamera setFrame:CGRectMake(0, _recorder.previewView.frame.size.height-65, SCREENWIDTH, 65)]; 
       CGFloat alphacolor = _recorder.previewView.frame.size.height/1000; 
       [progressView.layer setFrame:viewbottomForCamera.frame]; 

       if (alphacolor <= 0.7) { 
        [viewbottomForCamera setBackgroundColor:COLOR_WITH_RGBA(37, 37, 38, alphacolor)]; 

       } 


      } completion:^(BOOL finished) { 

       [lblHoldtext setFrame:CGRectMake(20, viewbottomForCamera.frame.origin.y-30, SCREENWIDTH-40, 20)]; 

      }]; 

     } 
    }