【代碼筆記】給背景圖加上移動的手勢,背景圖手勢

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【代碼筆記】給背景圖加上移動的手勢,背景圖手勢

一,工程圖。

二,。

三,代碼。

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.        //增加背景圖    [self addView];   }#pragma -mark -functions//背景圖-(void)addView{    //紅色的背景圖    UIView *parentView=[[UIView alloc]initWithFrame:CGRectMake(50, 100, 200, 200)];    parentView.backgroundColor=[UIColor redColor];    [self.view addSubview:parentView];        [parentView setUserInteractionEnabled:YES];            //移動的手勢    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(@"--移動的手勢-----");    }- (void)didReceiveMemoryWarning{    [super didReceiveMemoryWarning];    // Dispose of any resources that can be recreated.}

 

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