```
#import "LivingInfoView.h"
#define Screen_width [UIScreen mainScreen].bounds.size.width
#define Screen_height [UIScreen mainScreen].bounds.size.height
@interface ViewController ()
@property (weak, nonatomic) LivingInfoView *livingInfoView;
@property (assign, nonatomic) BOOL isBeginSlid;//記錄開始觸摸的方向
@property (weak, nonatomic) UIImageView *playLayer;
@end
```
```
- (void)viewDidLoad {
[super viewDidLoad];
self.view.backgroundColor = [UIColor whiteColor];
//? ? 播放層
UIImageView *playLayer = [[UIImageView alloc]initWithFrame:CGRectMake(0, 0, Screen_width, Screen_height)];
[self.view addSubview:playLayer];
self.playLayer = playLayer;
playLayer.image = [UIImage imageNamed:@"123.jpeg"];
playLayer.userInteractionEnabled = YES;
//? ? 播放信息層
LivingInfoView *livingInfoView = [[LivingInfoView alloc]initWithFrame:CGRectMake(0, 0, Screen_width, Screen_height)];
[playLayer addSubview:livingInfoView];
self.livingInfoView = livingInfoView;
livingInfoView.backgroundColor = [UIColor colorWithRed:242 / 255.0 green:156 / 255.0 blue:177 / 255.0 alpha:0.6];
// Do any additional setup after loading the view, typically from a nib.
}
#pragma mark - 界面的滑動
- (void)touchesBegan:(NSSet*)touches withEvent:(UIEvent *)event {
self.isBeginSlid = YES;
}
- (void)touchesMoved:(NSSet*)touches withEvent:(UIEvent *)event {
//? ? 1.獲取手指
UITouch *touch = [touches anyObject];
//? ? 2.獲取觸摸的上一個位置
CGPoint lastPoint;
CGPoint currentPoint;
//? ? 3.獲取偏移位置
CGPoint tempCenter;
if (self.isBeginSlid) {//首次觸摸進入
lastPoint = [touch previousLocationInView:self.playLayer];
currentPoint = [touch locationInView:self.playLayer];
//判斷是左右滑動還是上下滑動
if (ABS(currentPoint.x - lastPoint.x) > ABS(currentPoint.y - lastPoint.y)) {
//? ? 3.獲取偏移位置
tempCenter = self.livingInfoView.center;
tempCenter.x += currentPoint.x - lastPoint.x;//左右滑動
//禁止向左劃
if (self.livingInfoView.frame.origin.x == 0 && currentPoint.x -lastPoint.x > 0) {//滑動開始是從0點開始的，并且是向右滑動
self.livingInfoView.center = tempCenter;
}
//? ? ? ? ? ? else if(self.livingInfoView.frame.origin.x > 0){
//? ? ? ? ? ? ? ? self.livingInfoView.center = tempCenter;
//? ? ? ? ? ? }
//? ? ? ? ? ? NSLog(@"%@-----%@",NSStringFromCGPoint(tempCenter),NSStringFromCGPoint(self.livingInfoView.center));
}else{
//? ? 3.獲取偏移位置
tempCenter = self.playLayer.center;
tempCenter.y += currentPoint.y - lastPoint.y;//上下滑動
self.playLayer.center = tempCenter;
}
}else{//滑動開始后進入，滑動方向要么水平要么垂直
if (self.playLayer.frame.origin.y != 0){//垂直的優(yōu)先級高于左右滑，因為左右滑的判定是不等于0
lastPoint = [touch previousLocationInView:self.playLayer];
currentPoint = [touch locationInView:self.playLayer];
tempCenter = self.playLayer.center;
tempCenter.y += currentPoint.y -lastPoint.y;
self.playLayer.center = tempCenter;
}else if (self.livingInfoView.frame.origin.x != 0) {
lastPoint = [touch previousLocationInView:self.livingInfoView];
currentPoint = [touch locationInView:self.livingInfoView];
tempCenter = self.livingInfoView.center;
tempCenter.x += currentPoint.x -lastPoint.x;
//禁止向左劃
if (self.livingInfoView.frame.origin.x == 0 && currentPoint.x -lastPoint.x > 0) {//滑動開始是從0點開始的，并且是向右滑動
self.livingInfoView.center = tempCenter;
}else if(self.livingInfoView.frame.origin.x > 0){
self.livingInfoView.center = tempCenter;
}
}
}
self.isBeginSlid = NO;
}
- (void)touchesEnded:(NSSet*)touches withEvent:(UIEvent *)event {
//? ? NSLog(@"%.2f-----%.2f",livingInfoView.frame.origin.y,Screen_height * 0.8);
//? ? 水平滑動判斷
//在控制器這邊滑動判斷如果滑動范圍沒有超過屏幕的十分之八livingInfoView還是離開屏幕
if (self.livingInfoView.frame.origin.x > Screen_width * 0.8) {
[UIView animateWithDuration:0.06 animations:^{
CGRect frame = self.livingInfoView.frame;
frame.origin.x = Screen_width;
self.livingInfoView.frame = frame;
}];
}else{//否則則回到屏幕0點
[UIView animateWithDuration:0.2 animations:^{
CGRect frame = self.livingInfoView.frame;
frame.origin.x = 0;
self.livingInfoView.frame = frame;
}];
}
//? ? 上下滑動判斷
if (self.playLayer.frame.origin.y > Screen_height * 0.2) {
//? ? ? ? 切換到下一頻道
self.playLayer.image = [UIImage imageNamed:@"PlayView2"];
}else if (self.playLayer.frame.origin.y < - Screen_height * 0.2){
//? ? ? ? 切換到上一頻道
self.playLayer.image = [UIImage imageNamed:@"PlayView"];
}
//? ? ? ? 回到原始位置等待界面重新加載
CGRect frame = self.playLayer.frame;
frame.origin.y = 0;
self.playLayer.frame = frame;
}
- (void)touchesCancelled:(NSSet*)touches withEvent:(UIEvent *)event{
//? ? 水平滑動判斷
//在控制器這邊滑動判斷如果滑動范圍沒有超過屏幕的十分之八livingInfoView還是離開屏幕
if (self.livingInfoView.frame.origin.x > Screen_width * 0.8) {
[UIView animateWithDuration:0.06 animations:^{
CGRect frame = self.livingInfoView.frame;
frame.origin.x = Screen_width;
self.livingInfoView.frame = frame;
}];
}else{//否則則回到屏幕0點
[UIView animateWithDuration:0.2 animations:^{
CGRect frame = self.livingInfoView.frame;
frame.origin.x = 0;
self.livingInfoView.frame = frame;
}];
}
//? ? 上下滑動判斷
if (self.livingInfoView.frame.origin.y > Screen_height * 0.2) {
//? ? ? ? 切換到下一頻道，重新加載界面，這里用切換圖片做演示。
self.livingInfoView.backgroundColor
= [UIColor colorWithRed:arc4random_uniform(256) / 255.0
green:arc4random_uniform(256) / 255.0 blue:arc4random_uniform(256) /
255.0 alpha:0.5];
}else if (self.livingInfoView.frame.origin.y < - Screen_height * 0.2){
//? ? ? ? 切換到上一頻道，重新加載界面，這里用切換圖片做演示。
self.livingInfoView.backgroundColor
= [UIColor colorWithRed:arc4random_uniform(256) / 255.0
green:arc4random_uniform(256) / 255.0 blue:arc4random_uniform(256) /
255.0 alpha:0.5];
}
//? ? ? ? 回到原始位置等待界面重新加載
CGRect frame = self.livingInfoView.frame;
frame.origin.y = 0;
self.livingInfoView.frame = frame;
}
```
