添加HWPanModal和FLAnimatedImage

Pods/HWPanModal/Sources/Delegate/HWPanModalPresentationDelegate.h

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+//
+//  HWPanModalPresentationDelegate.h
+//  HWPanModal
+//
+//  Created by heath wang on 2019/4/29.
+//
+
+#import <Foundation/Foundation.h>
+#import <UIKit/UIKit.h>
+
+@class HWPanModalInteractiveAnimator;
+
+typedef NS_ENUM(NSInteger, PanModalInteractiveMode) {
+    PanModalInteractiveModeNone,
+    PanModalInteractiveModeSideslip,    // 侧滑返回
+    PanModalInteractiveModeDragDown,    // 向下拖拽返回
+};
+
+NS_ASSUME_NONNULL_BEGIN
+
+@interface HWPanModalPresentationDelegate : NSObject <UIViewControllerTransitioningDelegate, UIAdaptivePresentationControllerDelegate, UIPopoverPresentationControllerDelegate>
+
+@property (nonatomic, assign) BOOL interactive;
+@property (nonatomic, assign) PanModalInteractiveMode interactiveMode;
+@property (nonnull, nonatomic, strong, readonly) HWPanModalInteractiveAnimator *interactiveDismissalAnimator;
+
+@end
+
+NS_ASSUME_NONNULL_END

Pods/HWPanModal/Sources/Delegate/HWPanModalPresentationDelegate.m

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+//
+//  HWPanModalPresentationDelegate.m
+//  HWPanModal
+//
+//  Created by heath wang on 2019/4/29.
+//
+
+#import "HWPanModalPresentationDelegate.h"
+#import "HWPanModalPresentationAnimator.h"
+#import "HWPanModalPresentationController.h"
+#import "HWPanModalInteractiveAnimator.h"
+
+@interface HWPanModalPresentationDelegate ()
+
+@property (nonatomic, strong) HWPanModalInteractiveAnimator *interactiveDismissalAnimator;
+
+@end
+
+@implementation HWPanModalPresentationDelegate
+
+- (nullable id <UIViewControllerAnimatedTransitioning>)animationControllerForPresentedController:(UIViewController *)presented presentingController:(UIViewController *)presenting sourceController:(UIViewController *)source {
+	return [[HWPanModalPresentationAnimator alloc] initWithTransitionStyle:TransitionStylePresentation interactiveMode:PanModalInteractiveModeNone];
+}
+
+- (nullable id <UIViewControllerAnimatedTransitioning>)animationControllerForDismissedController:(UIViewController *)dismissed {
+	return [[HWPanModalPresentationAnimator alloc] initWithTransitionStyle:TransitionStyleDismissal interactiveMode:self.interactiveMode];
+}
+
+- (nullable id <UIViewControllerInteractiveTransitioning>)interactionControllerForDismissal:(id <UIViewControllerAnimatedTransitioning>)animator {
+	if (self.interactive) {
+		return self.interactiveDismissalAnimator;
+	}
+
+	return nil;
+}
+
+- (nullable UIPresentationController *)presentationControllerForPresentedViewController:(UIViewController *)presented presentingViewController:(nullable UIViewController *)presenting sourceViewController:(UIViewController *)source {
+	UIPresentationController *controller = [[HWPanModalPresentationController alloc] initWithPresentedViewController:presented presentingViewController:presenting];
+	controller.delegate = self;
+	return controller;
+}
+
+#pragma mark - UIAdaptivePresentationControllerDelegate
+
+- (UIModalPresentationStyle)adaptivePresentationStyleForPresentationController:(UIPresentationController *)controller traitCollection:(UITraitCollection *)traitCollection {
+	return UIModalPresentationNone;
+}
+
+#pragma mark - Getter
+
+- (HWPanModalInteractiveAnimator *)interactiveDismissalAnimator {
+	if (!_interactiveDismissalAnimator) {
+		_interactiveDismissalAnimator = [[HWPanModalInteractiveAnimator alloc] init];
+	}
+	return _interactiveDismissalAnimator;
+}
+
+#ifdef DEBUG
+
+- (void)dealloc {
+	NSLog(@"%s", __PRETTY_FUNCTION__);
+}
+
+#endif
+
+@end