iOS悬浮窗口（无论界面跳转、View始终在视图上显示，可移动）
2016.09.24 23:52* 字数 71 阅读 5925评论 9喜欢 11
让所有界面都显示，最好还是封装一个继承Window的类：JYCWindow。
先看看效果：
mygif.gif
关键代码如下：
- (instancetype)initWithFrame:(CGRect)frame mainImageName:(NSString*)name bgcolor:(UIColor *)bgcolor animationColor:animationColor
{
if(self = [super initWithFrame:frame])
{
NSAssert(name != nil, @"mainImageName can't be nil !");
self.backgroundColor = [UIColor clearColor];
self.windowLevel = UIWindowLevelAlert + 1; //如果想在 alert 之上，则改成 + 2
self.rootViewController = [UIViewController new];
[self makeKeyAndVisible];
_bgcolor = bgcolor;
_frameWidth = frame.size.width;
_animationColor = animationColor;
_mainImageButton = [UIButton buttonWithType:UIButtonTypeCustom];
[_mainImageButton setFrame:(CGRect){0, 0,frame.size.width, frame.size.height}];
[_mainImageButton setImage:[UIImage imageNamed:name] forState:UIControlStateNormal];
// _mainImageButton.layer.cornerRadius = frame.size.width*0.5;
// _mainImageButton.layer.masksToBounds= YES;
_mainImageButton.alpha = normalAlpha;
[_mainImageButton addTarget:self action:@selector(click:) forControlEvents:UIControlEventTouchUpInside];
if (_animationColor) {
[_mainImageButton addTarget:self action:@selector(mainBtnTouchDown) forControlEvents:UIControlEventTouchDown];
}
[self addSubview:_mainImageButton];
// 增加拖动window的手势
_pan = [[UIPanGestureRecognizer alloc]initWithTarget:self action:@selector(locationChange:)];
_pan.delaysTouchesBegan = NO;
[self addGestureRecognizer:_pan];
_tap = [[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(click:)];
[self addGestureRecognizer:_tap];
[self performSelector:@selector(justbegin) withObject:nil afterDelay:statusChangeDuration];
}
return self;
}
至于怎么移动，怎么动画，直接看.h和.m文件如下：
JYCWindow.h###
#import <UIKit/UIKit.h>
typedef void(^CallTheService)(void);
@interface JYCWindow : UIWindow
//重要：所有图片都要是圆形的，程序里并没有自动处理成圆形
// warning: frame的长宽必须相等
- (instancetype)initWithFrame:(CGRect)frame mainImageName:(NSString*)name bgcolor:(UIColor *)bgcolor;
// 长按雷达辐射效果
- (instancetype)initWithFrame:(CGRect)frame mainImageName:(NSString*)name bgcolor:(UIColor *)bgcolor animationColor:animationColor;
// 显示（默认）
- (void)showWindow;
// 隐藏
- (void)dissmissWindow;
@property (nonatomic,copy)CallTheService callService;
@end
JYCWindow.m###
#import "JYCWindow.h"
#define kk_WIDTH self.frame.size.width
#define kk_HEIGHT self.frame.size.height
#define kScreenWidth [[UIScreen mainScreen] bounds].size.width
#define kScreenHeight [[UIScreen mainScreen] bounds].size.height
#define animateDuration 0.3 //位置改变动画时间
#define showDuration 0.1 //展开动画时间
#define statusChangeDuration 3.0 //状态改变时间
#define normalAlpha 1.0 //正常状态时背景alpha值
#define sleepAlpha 0.5 //隐藏到边缘时的背景alpha值
#define myBorderWidth 1.0 //外框宽度
#define marginWith 5 //间隔
#define WZFlashInnerCircleInitialRaius 20
@interface JYCWindow ()
@property(nonatomic)NSInteger frameWidth;
@property(nonatomic,strong)UIPanGestureRecognizer *pan;
@property(nonatomic,strong)UITapGestureRecognizer *tap;
@property(nonatomic,strong)UIButton *mainImageButton;
@property(nonatomic,strong)UIColor *bgcolor;
@property(nonatomic,strong)CAAnimationGroup *animationGroup;
@property(nonatomic,strong)CAShapeLayer *circleShape;
@property(nonatomic,strong)UIColor *animationColor;
@end
@implementation JYCWindow
- (instancetype)initWithFrame:(CGRect)frame
{
self = [super initWithFrame:frame];
if (self) {
// Initialization code
}
return self;
}
- (instancetype)initWithFrame:(CGRect)frame mainImageName:(NSString*)name bgcolor:(UIColor *)bgcolor{
return [self initWithFrame:frame mainImageName:name bgcolor:bgcolor animationColor:nil];
}
- (instancetype)initWithFrame:(CGRect)frame mainImageName:(NSString*)name bgcolor:(UIColor *)bgcolor animationColor:animationColor
{
if(self = [super initWithFrame:frame])
{
NSAssert(name != nil, @"mainImageName can't be nil !");
self.backgroundColor = [UIColor clearColor];
self.windowLevel = UIWindowLevelAlert + 1; //如果想在 alert 之上，则改成 + 2
self.rootViewController = [UIViewController new];
[self makeKeyAndVisible];
_bgcolor = bgcolor;
_frameWidth = frame.size.width;
_animationColor = animationColor;
_mainImageButton = [UIButton buttonWithType:UIButtonTypeCustom];
[_mainImageButton setFrame:(CGRect){0, 0,frame.size.width, frame.size.height}];
[_mainImageButton setImage:[UIImage imageNamed:name] forState:UIControlStateNormal];
// _mainImageButton.layer.cornerRadius = frame.size.width*0.5;
// _mainImageButton.layer.masksToBounds= YES;
_mainImageButton.alpha = normalAlpha;
[_mainImageButton addTarget:self action:@selector(click:) forControlEvents:UIControlEventTouchUpInside];
if (_animationColor) {
[_mainImageButton addTarget:self action:@selector(mainBtnTouchDown) forControlEvents:UIControlEventTouchDown];
}
[self addSubview:_mainImageButton];
// [self doBorderWidth:myBorderWidth color:nil cornerRadius:_frameWidth/2];
_pan = [[UIPanGestureRecognizer alloc]initWithTarget:self action:@selector(locationChange:)];
_pan.delaysTouchesBegan = NO;
[self addGestureRecognizer:_pan];
_tap = [[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(click:)];
[self addGestureRecognizer:_tap];
[self performSelector:@selector(justbegin) withObject:nil afterDelay:statusChangeDuration];
}
return self;
}
- (void)dissmissWindow{
self.hidden = YES;
}
- (void)showWindow{
self.hidden = NO;
}
- (void)justbegin{
[self performSelector:@selector(changeStatus) withObject:nil afterDelay:statusChangeDuration];
CGPoint panPoint = CGPointMake(kScreenWidth-80, kScreenHeight-150);
[self changBoundsabovePanPoint:panPoint];
}
- (void)changBoundsabovePanPoint:(CGPoint)panPoint{
if(panPoint.x <= kScreenWidth/2)
{
if(panPoint.y <= 40+kk_HEIGHT/2 && panPoint.x >= 20+kk_WIDTH/2)
{
[UIView animateWithDuration:animateDuration animations:^{
self.center = CGPointMake(panPoint.x, kk_HEIGHT/2);
}];
}
else if(panPoint.y >= kScreenHeight-kk_HEIGHT/2-40 && panPoint.x >= 20+kk_WIDTH/2)
{
[UIView animateWithDuration:animateDuration animations:^{
self.center = CGPointMake(panPoint.x, kScreenHeight-kk_HEIGHT/2);
}];
}
else if (panPoint.x < kk_WIDTH/2+20 && panPoint.y > kScreenHeight-kk_HEIGHT/2)
{
[UIView animateWithDuration:animateDuration animations:^{
self.center = CGPointMake(kk_WIDTH/2, kScreenHeight-kk_HEIGHT/2);
}];
}
else
{
CGFloat pointy = panPoint.y < kk_HEIGHT/2 ? kk_HEIGHT/2 :panPoint.y;
[UIView animateWithDuration:animateDuration animations:^{
self.center = CGPointMake(kk_WIDTH/2, pointy);
}];
}
}
else if(panPoint.x > kScreenWidth/2)
{
if(panPoint.y <= 40+kk_HEIGHT/2 && panPoint.x < kScreenWidth-kk_WIDTH/2-20 )
{
[UIView animateWithDuration:animateDuration animations:^{
self.center = CGPointMake(panPoint.x, kk_HEIGHT/2);
}];
}
else if(panPoint.y >= kScreenHeight-40-kk_HEIGHT/2 && panPoint.x < kScreenWidth-kk_WIDTH/2-20)
{
[UIView animateWithDuration:animateDuration animations:^{
self.center = CGPointMake(panPoint.x, kScreenHeight-kk_HEIGHT/2);
}];
}
else if (panPoint.x > kScreenWidth-kk_WIDTH/2-20 && panPoint.y < kk_HEIGHT/2)
{
[UIView animateWithDuration:animateDuration animations:^{
self.center = CGPointMake(kScreenWidth-kk_WIDTH/2, kk_HEIGHT/2);
}];
}
else
{
CGFloat pointy = panPoint.y > kScreenHeight-kk_HEIGHT/2 ? kScreenHeight-kk_HEIGHT/2 :panPoint.y;
[UIView animateWithDuration:animateDuration animations:^{
self.center = CGPointMake(kScreenWidth-kk_WIDTH/2, pointy);
}];
}
}
}
//改变位置
- (void)locationChange:(UIPanGestureRecognizer*)p
{
CGPoint panPoint = [p locationInView:[[UIApplication sharedApplication] keyWindow]];
if(p.state == UIGestureRecognizerStateBegan)
{
[NSObject cancelPreviousPerformRequestsWithTarget:self selector:@selector(changeStatus) object:nil];
_mainImageButton.alpha = normalAlpha;
}
if(p.state == UIGestureRecognizerStateChanged)
{
self.center = CGPointMake(panPoint.x, panPoint.y);
}
else if(p.state == UIGestureRecognizerStateEnded)
{
[self stopAnimation];
[self performSelector:@selector(changeStatus) withObject:nil afterDelay:statusChangeDuration];
[self changBoundsabovePanPoint:panPoint];
}
}
//点击事件
- (void)click:(UITapGestureRecognizer*)p
{
[self stopAnimation];
_mainImageButton.alpha = normalAlpha;
//拉出悬浮窗
if (self.center.x == 0) {
self.center = CGPointMake(kk_WIDTH/2, self.center.y);
}else if (self.center.x == kScreenWidth) {
self.center = CGPointMake(kScreenWidth - kk_WIDTH/2, self.center.y);
}else if (self.center.y == 0) {
self.center = CGPointMake(self.center.x, kk_HEIGHT/2);
}else if (self.center.y == kScreenHeight) {
self.center = CGPointMake(self.center.x, kScreenHeight - kk_HEIGHT/2);
}
if (self.callService) {
self.callService();
}
}
- (void)changeStatus
{
[UIView animateWithDuration:1.0 animations:^{
_mainImageButton.alpha = sleepAlpha;
}];
[UIView animateWithDuration:0.5 animations:^{
CGFloat x = self.center.x < 20+kk_WIDTH/2 ? 0 : self.center.x > kScreenWidth - 20 -kk_WIDTH/2 ? kScreenWidth : self.center.x;
CGFloat y = self.center.y < 40 + kk_HEIGHT/2 ? 0 : self.center.y > kScreenHeight - 40 - kk_HEIGHT/2 ? kScreenHeight : self.center.y;
//禁止停留在4个角
if((x == 0 && y ==0) || (x == kScreenWidth && y == 0) || (x == 0 && y == kScreenHeight) || (x == kScreenWidth && y == kScreenHeight)){
y = self.center.y;
}
self.center = CGPointMake(x, y);
}];
}
//- (void)doBorderWidth:(CGFloat)width color:(UIColor *)color cornerRadius:(CGFloat)cornerRadius{
// // self.layer.masksToBounds = YES;
// self.layer.cornerRadius = cornerRadius;
// self.layer.borderWidth = width;
// if (!color) {
// self.layer.borderColor = [UIColor whiteColor].CGColor;
// }else{
// self.layer.borderColor = color.CGColor;
// }
//}
#pragma mark ------- animation -------------
- (void)buttonAnimation{
self.layer.masksToBounds = NO;
CGFloat scale = 1.0f;
//
CGFloat width = self.mainImageButton.bounds.size.width, height = self.mainImageButton.bounds.size.height;
//
CGFloat biggerEdge = width > height ? width : height, smallerEdge = width > height ? height : width;
CGFloat radius = smallerEdge / 2 > WZFlashInnerCircleInitialRaius ? WZFlashInnerCircleInitialRaius : smallerEdge / 2;
scale = biggerEdge / radius + 0.5;
_circleShape = [self createCircleShapeWithPosition:CGPointMake(width/2, height/2)
pathRect:CGRectMake(0, 0, radius * 3, radius * 3)
radius:radius];
// 方形放大效果
// scale = 2.5f;
// _circleShape = [self createCircleShapeWithPosition:CGPointMake(width/2, height/2)
// pathRect:CGRectMake(-CGRectGetMidX(self.mainImageButton.bounds), -CGRectGetMidY(self.mainImageButton.bounds), width, height)
// radius:self.mainImageButton.layer.cornerRadius];
[self.mainImageButton.layer addSublayer:_circleShape];
CAAnimationGroup *groupAnimation = [self createFlashAnimationWithScale:scale duration:1.0f];
[_circleShape addAnimation:groupAnimation forKey:nil];
}
- (void)stopAnimation{
[NSObject cancelPreviousPerformRequestsWithTarget:self selector:@selector(buttonAnimation) object:nil];
if (_circleShape) {
[_circleShape removeFromSuperlayer];
}
}
- (CAShapeLayer *)createCircleShapeWithPosition:(CGPoint)position pathRect:(CGRect)rect radius:(CGFloat)radius
{
CAShapeLayer *circleShape = [CAShapeLayer layer];
circleShape.path = [self createCirclePathWithRadius:rect radius:radius];
circleShape.position = position;
// 雷达覆盖区域
circleShape.bounds = CGRectMake(0, 0, radius * 3, radius * 3);
circleShape.fillColor = _animationColor.CGColor;
// 圆圈放大效果
// circleShape.fillColor = [UIColor clearColor].CGColor;
// circleShape.strokeColor = [UIColor purpleColor].CGColor;
circleShape.opacity = 0;
circleShape.lineWidth = 1;
return circleShape;
}
- (CAAnimationGroup *)createFlashAnimationWithScale:(CGFloat)scale duration:(CGFloat)duration
{
CABasicAnimation *scaleAnimation = [CABasicAnimation animationWithKeyPath:@"transform.scale"];
scaleAnimation.fromValue = [NSValue valueWithCATransform3D:CATransform3DIdentity];
scaleAnimation.toValue = [NSValue valueWithCATransform3D:CATransform3DMakeScale(scale, scale, 1)];
CABasicAnimation *alphaAnimation = [CABasicAnimation animationWithKeyPath:@"opacity"];
alphaAnimation.fromValue = @1;
alphaAnimation.toValue = @0;
_animationGroup = [CAAnimationGroup animation];
_animationGroup.animations = @[scaleAnimation, alphaAnimation];
_animationGroup.duration = duration;
_animationGroup.repeatCount = INFINITY;
_animationGroup.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseOut];
return _animationGroup;
}
- (CGPathRef)createCirclePathWithRadius:(CGRect)frame radius:(CGFloat)radius
{
return [UIBezierPath bezierPathWithRoundedRect:frame cornerRadius:radius].CGPath;
}
- (void)mainBtnTouchDown{
[self performSelector:@selector(buttonAnimation) withObject:nil afterDelay:0.5];
}
/*
// Only override drawRect: if you perform custom drawing.
// An empty implementation adversely affects performance during animation.
- (void)drawRect:(CGRect)rect {
// Drawing code
}
*/
@end
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