一，效果圖。

二，工程圖。

三，代碼。

RootViewController.h

#import <UIKit/UIKit.h>@interface RootViewController : UIViewController@end

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RootViewController.m

#import "RootViewController.h" //加入頭文件 #import "BGMovingComponent.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.//初始化背景圖[self addView];//初始化云[self addCloudView];} #pragma -mark -functions //初始化背景圖 -(void)addView {self.title=@"浮動的云"; } //初始化云 -(void)addCloudView {BGMovingComponent *cloud = [[BGMovingComponent alloc] initWithFrame:CGRectMake(0, 0, 320, 60)];[self.view addSubview:cloud]; }- (void)didReceiveMemoryWarning {[super didReceiveMemoryWarning];// Dispose of any resources that can be recreated. }

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轉載于:https://www.cnblogs.com/yang-guang-girl/p/5237287.html

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