import UIKit
class ViewController: UIViewController ,UITextFieldDelegate,UITextViewDelegate,UIActionSheet Delegate,UIAlertViewDelegate{
var imageView2:UIImageView!
override func viewDidLoad() {
super.viewDidLoad()
//1.使用圖像控件顯示圖片
let imageView = UIImageView(image: UIImage(named: "lalala"))
imageView.frame = CGRectMake(10, 310, 200, 60)
//改變圖片
imageView.image = UIImage(named: "111")
self.view.addSubview(imageView)
//2.從文件目錄中獲取圖片
let path = NSBundle.mainBundle().pathForResource("1", ofType: "png")
let newImage = UIImage(contentsOfFile: path!)
let imageView1 = UIImageView(image: newImage)
imageView1.frame = CGRectMake(10, 380, 200, 60)
self.view.addSubview(imageView1)
// //3.從網(wǎng)絡(luò)地址獲取圖片
// //定義NSURL對象
// let url = NSURL(string: "http://baidu.com/blog/images/logo.png")
// //從網(wǎng)絡(luò)獲取數(shù)據(jù)流
// let data = NSData(contentsOfURL: url!)
// print(data)
// //通過數(shù)據(jù)流初始化圖片
// let newImage1 = UIImage(data: data!)
//
// let imageView2 = UIImageView(image: newImage1)
//
// imageView2.frame = CGRectMake(10, 450, 200, 60)
//
// self.view.addSubview(imageView2)
//4.使用圖像控件實現(xiàn)動畫播放
imageView2 = UIImageView()
imageView2.frame = CGRectMake(10, 520, 200, 60)
//設(shè)置動畫圖片
imageView2.animationImages = [UIImage(named: "1")!,UIImage(named: "111")!,UIImage(named: "lalala")!]
//設(shè)置每隔0.5秒變換一次
imageView2.animationDuration = 0.5
//保持圖片比例
imageView2.contentMode = UIViewContentMode.ScaleToFill
self.view.addSubview(imageView2)
}
}
override func viewWillAppear(animated: Bool) {
super.viewWillAppear(animated)
imageView2.startAnimating()
}
override func viewWillDisappear(animated: Bool) {
super.viewWillDisappear(animated)
imageView2.stopAnimating()
}