实现Facebook messenger风格泛到全屏视图类似的效果
我已经实现了UIPageviewContoller来支持屏幕半个底部的多个viewcontoller视图。现在我的问题是如何在我的网页浏览器控制器上支持这种子视图的Facebook样式平移效果。
我想实现他们已经在相机中应用的Facebook消息风格效果，用手指可以将视图作为全屏显示。当我们向下平移相同的视图时，它将在原始视图内进行调整。 我已经附上了一些屏幕以便更好地理解。
它应该支持一体化的流行手势。
我能够得到类似的效果但是因为我已经添加了视图到主窗口所以视图可以平移到全屏但是通过这种方法我无法实现交互式弹出iOS默认手势，这种方法对我不好当前的pageviewcontoller实现。
如果在窗口中添加视图比用户按下按钮而不是窗口元素将不会移动它将保留在窗口中，因此窗口方法不好。
有没有其他方法可以获得类似的效果？ UIViewControllerInteractiveTransitioning可能对此有帮助吗？
提前致谢。 我知道我会从你们那里获得更好的方法，这比将子视图添加到窗口更稳定。
2 个答案:
答案 0 :(得分：1)
您是否尝试过将滑动手势添加到子视图A？
UISwipeGestureRecognizer *swipeUp = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(didSwipeScreen:)];
swipeUp.direction = UISwipeGestureRecognizerDirectionUp;
[yourSubViewA addGestureRecognizer:swipeUp];
它正在处理 -
- (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;
}
}
要恢复到默认位置，您可以使用UISwipeGestureRecognizerDirectionDown添加另一个滑动手势，也可以只是点击手势。侧面菜单MFSideMenu很不错。
答案 1 :(得分：0)
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)];
}];
}
}
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