一,工程图。
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二,效果图。
三,代码。
RootViewController.h
#import <UIKit/UIKit.h>@interface RootViewController : UIViewController<UIGestureRecognizerDelegate>@end
RootViewController.m
#import "RootViewController.h"@interface RootViewController ()@end@implementation RootViewController- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil{ self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]; if (self) { // Custom initialization } return self;}- (void)viewDidLoad{ [super viewDidLoad]; // Do any additional setup after loading the view. //增加背景图 [self addView]; }#pragma -mark -functions//背景图-(void)addView{ //红色的背景图 UIView *parentView=[[UIView alloc]initWithFrame:CGRectMake(50, 100, 200, 200)]; parentView.backgroundColor=[UIColor redColor]; [self.view addSubview:parentView]; [parentView setUserInteractionEnabled:YES]; //移动的手势 UIPanGestureRecognizer *panRcognize=[[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(handlePan:)]; panRcognize.delegate=self; [panRcognize setEnabled:YES]; [panRcognize delaysTouchesEnded]; [panRcognize cancelsTouchesInView]; [parentView addGestureRecognizer:panRcognize];}#pragma UIGestureRecognizer Handles- (void)handlePan:(UIPanGestureRecognizer *)recognizer { NSLog(@"--移动的手势-----"); }- (void)didReceiveMemoryWarning{ [super didReceiveMemoryWarning]; // Dispose of any resources that can be recreated.}
原标题:【代码笔记】给背景图加上移动的手势
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