Android程序开发之给背景图加上移动的手势

一，工程图。

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.
}

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