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背景
- 很多游戏SDK里面会有一个一直悬浮的悬浮球，这个功能也基本成了游戏SDK里面必备的一个组件
需求
- 在所有界面上面，界面跳转，转场都不会遮住这个球。让用户随时可以点击到。但是不能影响到用户体验游戏（或APP），所以需要靠边吸附
解决思路
- UIview分层级windowLevel，只需要把这个视图的层级调成最高的，这样不管到哪个控制器，哪个界面 都可以实现在最上层
- 用户点击或者触摸可以弹出交互界面：
- 解决方案大概有两种：
- 1 获取当前视图控制器，把弹出来的交互视图添加到该控制器上。因为是最后添加的，所以不用考虑会被其他视图遮挡
- 2 同样的原理给视图层级设置成最高，让他在最上面，这样不用每次关闭的时候就销毁掉，出现的时候再添加到当前控制器上
- 解决方案大概有两种：
- 所有的UIview都需要依赖父视图，才能展现出来。那么就需要一个不会销毁 一直曾在的视图作为载体。keywindow最合适了
+(**void**)showFloatingball
{
dispatch_async(dispatch_get_main_queue(), ^{
**if** ([HGHShowBall shareInstance].isaready&&[HGHShowBall shareInstance].floatBall.hidden == **NO**) {
**return**;
}
CGRect frame = CGRectMake(0, 30, 50, 50);
[HGHShowBall shareInstance].floatBall = [[HGHFloatingBall alloc]initWithFrame:frame];
[HGHShowBall shareInstance].floatBall.hidden = **NO**;
[[UIApplication sharedApplication].keyWindow addSubview:[HGHShowBall shareInstance].floatBall];
[HGHShowBall shareInstance].isaready = **YES**;
});
}
- 这样视图就可以显示在最上面了，剩下的靠边吸附，拖动手势，tap手势往上加就行了
-(**instancetype**)initWithFrame:(CGRect)frame
{
**if** (**self**=[**super** initWithFrame:frame]) {
**self**.frame = frame;
**self**.backgroundColor = [UIColor clearColor];
// self.windowLevel = UIWindowLevelAlert+1;
UIPanGestureRecognizer *pan = [[UIPanGestureRecognizer alloc]initWithTarget:**self** action: **@selector**(gesturPan:)];
[**self** addGestureRecognizer:pan];
UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc]initWithTarget:**self** action: **@selector**(gesturTap:)];
[**self** addGestureRecognizer:tap];
**self**.imageV = [[UIImageView alloc]initWithFrame:**self**.bounds];
[**self** addSubview:**self**.imageV];
[**self** addgifImageV];
NSString *imageName = @"float_icon";
**self**.imageV.image = [UIImage imageNamed:imageName];
**self**.isHalfHidden = **NO**;
[**self** creatTimer];
}
**return** **self**;
}
- 手势拖动后 靠边吸附
-(**void**)gesturPan:(UIPanGestureRecognizer *)sender
{
UIView *testView = sender.view;
CGRect frame = **self**.imageV.frame;
CGFloat scale = [AWSDKConfigManager shareinstance].icon_scale / 100.0;
frame.size.width = 50 * scale;
**self**.imageV.frame = frame;
**self**.imageV.alpha = 1.0;
NSString *imageName = @"AWSDK.bundle/aw_float_icon";
imageName = [NSString stringWithFormat:@"%@_%@.png",imageName,[AWSDKConfigManager shareinstance].float_ball_type];
**if** ([AWSDKConfigManager shareinstance].isMiddle) {
[**self**.imageV setImage:[AWSDKConfigManager shareinstance].middleImage];
}**else**{
**self**.imageV.image = [UIImage imageNamed:imageName];
}
**self**.gifimageV.frame = frame;
NSString *imageNamegif = @"AWSDK.bundle/aw_float_icon_effects";
imageNamegif = [NSString stringWithFormat:@"%@_%@.gif",imageNamegif,[AWSDKConfigManager shareinstance].float_ball_type];
[**self** setgifviewWithimage:imageNamegif];
CGPoint startPoint;
**if** (sender.state == UIGestureRecognizerStateBegan) {
AWLog(@"start point");
startPoint = [sender locationInView:sender.view];
originPoint = [sender locationInView:[UIApplication sharedApplication].keyWindow];
AWLog(@"startPoint=%f,%f,originPoint=%f,%f",startPoint.x,startPoint.y,originPoint.x,originPoint.y);
}**else** **if** (sender.state == UIGestureRecognizerStateChanged){
CGPoint newPoint = [sender locationInView:sender.view];
CGFloat deltaX = newPoint.x-startPoint.x;
CGFloat deltaY = newPoint.y-startPoint.y;
testView.center = CGPointMake(testView.center.x+deltaX, testView.center.y+deltaY);
originPoint = [sender locationInView:[UIApplication sharedApplication].keyWindow];
}**else** **if** (sender.state == UIGestureRecognizerStateEnded){
**if** (originPoint.x >= [UIScreen mainScreen].bounds.size.width - testView.frame.size.width/2) {
originPoint.x = [UIScreen mainScreen].bounds.size.width - testView.frame.size.width/2;
testView.center = originPoint;
[**self** halfHidden];
**return**;
}
**if** (originPoint.x-testView.frame.size.width/2<=0) {
originPoint.x = testView.frame.size.width/2;
testView.center = originPoint;
[**self** halfHidden];
**return**;
}
**if** (IphoneX&&[AWTools DeviceOrientation]==2&&[AWTools isInLiuhai:originPoint.y-testView.frame.size.height/2]) {
**if** (originPoint.x-testView.frame.size.width/2-30<=0) {
originPoint.x = testView.frame.size.width/2+30;
testView.center = originPoint;
[**self** halfHidden];
**return**;
}
}
**if** (IphoneX&&[AWTools DeviceOrientation]==1&&[AWTools isInLiuhai:originPoint.y-testView.frame.size.height/2]) {
**if** (originPoint.x >= [UIScreen mainScreen].bounds.size.width - testView.frame.size.width/2-30) {
originPoint.x = [UIScreen mainScreen].bounds.size.width - testView.frame.size.width/2-30;
testView.center = originPoint;
[**self** halfHidden];
**return**;
}
}
[UIView animateWithDuration:0.3 animations:^{
**if** (originPoint.x-testView.frame.size.width/2<=0) {
originPoint.x = testView.frame.size.width/2 +10;
}
**if** (originPoint.y - testView.frame.size.height/2 <=20) {
originPoint.y = testView.frame.size.height/2 +20;
}
**if** (originPoint.x >= [UIScreen mainScreen].bounds.size.width - testView.frame.size.width/2) {
originPoint.x = [UIScreen mainScreen].bounds.size.width - testView.frame.size.width/2;
}
**if** (originPoint.y >=[UIScreen mainScreen].bounds.size.height - testView.frame.size.height/2-11) {
originPoint.y = [UIScreen mainScreen].bounds.size.height - testView.frame.size.height/2 - 10;
}
**if** (originPoint.x>[UIScreen mainScreen].bounds.size.width/2) {
**if** (IphoneX&&[AWTools DeviceOrientation]==1&&[AWTools isInLiuhai:originPoint.y-testView.frame.size.height/2])//刘海在右
{
originPoint.x = [UIScreen mainScreen].bounds.size.width - testView.frame.size.width/2 -30;//刘海高度34
}**else**{
originPoint.x = [UIScreen mainScreen].bounds.size.width - testView.frame.size.width/2;
}
}**else**{
**if** (IphoneX&&[AWTools DeviceOrientation]==2&&[AWTools isInLiuhai:originPoint.y-testView.frame.size.height/2]){
originPoint.x = testView.frame.size.width/2+30;
}**else**{
originPoint.x = testView.frame.size.width/2;
}
}
testView.center = originPoint;
}];
[**self** endPoint];
}
}
