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| | | // |
| | | // ZFFloatView.m |
| | | // ZFPlayer |
| | | // |
| | | // Copyright (c) 2016年 任子丰 ( http://github.com/renzifeng ) |
| | | // |
| | | // Permission is hereby granted, free of charge, to any person obtaining a copy |
| | | // of this software and associated documentation files (the "Software"), to deal |
| | | // in the Software without restriction, including without limitation the rights |
| | | // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| | | // copies of the Software, and to permit persons to whom the Software is |
| | | // furnished to do so, subject to the following conditions: |
| | | // |
| | | // The above copyright notice and this permission notice shall be included in |
| | | // all copies or substantial portions of the Software. |
| | | // |
| | | // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| | | // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| | | // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| | | // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| | | // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| | | // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| | | // THE SOFTWARE. |
| | | |
| | | #import "ZFFloatView.h" |
| | | |
| | | @implementation ZFFloatView |
| | | |
| | | - (instancetype)initWithFrame:(CGRect)frame { |
| | | self = [super initWithFrame:frame]; |
| | | if (self) { |
| | | [self initilize]; |
| | | } |
| | | return self; |
| | | } |
| | | |
| | | - (instancetype)initWithCoder:(NSCoder *)aDecoder{ |
| | | self = [super initWithCoder:aDecoder]; |
| | | if (self) { |
| | | [self initilize]; |
| | | } |
| | | return self; |
| | | } |
| | | |
| | | - (void)initilize { |
| | | self.safeInsets = UIEdgeInsetsMake(0, 0, 0, 0); |
| | | UIPanGestureRecognizer *panGestureRecognizer = [[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(doMoveAction:)]; |
| | | [self addGestureRecognizer:panGestureRecognizer]; |
| | | } |
| | | |
| | | - (void)setParentView:(UIView *)parentView { |
| | | _parentView = parentView; |
| | | [parentView addSubview:self]; |
| | | } |
| | | |
| | | #pragma mark - Action |
| | | |
| | | - (void)doMoveAction:(UIPanGestureRecognizer *)recognizer { |
| | | /// The position where the gesture is moving in the self.view. |
| | | CGPoint translation = [recognizer translationInView:self.parentView]; |
| | | CGPoint newCenter = CGPointMake(recognizer.view.center.x + translation.x, |
| | | recognizer.view.center.y + translation.y); |
| | | |
| | | // Limited screen range: |
| | | // Top margin limit. |
| | | newCenter.y = MAX(recognizer.view.frame.size.height/2 + self.safeInsets.top, newCenter.y); |
| | | |
| | | // Bottom margin limit. |
| | | newCenter.y = MIN(self.parentView.frame.size.height - self.safeInsets.bottom - recognizer.view.frame.size.height/2, newCenter.y); |
| | | |
| | | // Left margin limit. |
| | | newCenter.x = MAX(recognizer.view.frame.size.width/2, newCenter.x); |
| | | |
| | | // Right margin limit. |
| | | newCenter.x = MIN(self.parentView.frame.size.width - recognizer.view.frame.size.width/2,newCenter.x); |
| | | |
| | | // Set the center point. |
| | | recognizer.view.center = newCenter; |
| | | |
| | | // Set the gesture coordinates to 0, otherwise it will add up. |
| | | [recognizer setTranslation:CGPointZero inView:self.parentView]; |
| | | } |
| | | |
| | | |
| | | @end |