iOS 创建可移动的视图
.h
#import <UIKit/UIKit.h>
@interface YLRTCVideoMiniView : UIView
@property(nonatomic,copy)NSString *Str;
@end
.m
#import "YLRTCVideoMiniView.h"
@interface YLRTCVideoMiniView() {
CGPoint beginpoint;
CGFloat maxScaleW;
CGFloat maxScaleH;
CGFloat minScaleW;
CGFloat minScaleH;
}
@end
@implementation YLRTCVideoMiniView
- (instancetype)initWithFrame:(CGRect)frame
{
self = [super initWithFrame:frame];
if (self) {
minScaleW = -self.frame.origin.x;
maxScaleW = KSCREEN_WIDTH-self.width-self.frame.origin.x;
minScaleH = -self.frame.origin.y;
maxScaleH = KSCREEN_HEIGHT-self.height-self.frame.origin.y;
NSLog(@"======copyStr============= %@",self.Str);
}
return self;
}
- (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event {
NSLog(@"我正在移动中");
UITouch *touch = [touches anyObject];
CGPoint currentPosition = [touch locationInView:self];
float offsetX = currentPosition.x - beginpoint.x;
float offsetY = currentPosition.y - beginpoint.y;
if (self.transform.tx >= maxScaleW) {
offsetX = offsetX > 0 ? 0 : offsetX;
} else if (self.transform.tx <= minScaleW) {
offsetX = offsetX < 0 ? 0 : offsetX;
}
if (self.transform.ty >= maxScaleH) {
offsetY = offsetY > 0 ? 0 : offsetY;
} else if (self.transform.ty <= minScaleH) {
offsetY = offsetY < 0 ? 0 : offsetY;
}
self.transform = CGAffineTransformTranslate(self.transform, offsetX, offsetY);
}
- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
NSLog(@"我开始移动了");
UITouch *touch = [touches anyObject];
beginpoint = [touch locationInView:self];
}
- (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event {
NSLog(@"我滑动结束了");
}
@end
