IOS開發學習筆記-(3) 進度條、等待動畫開始停止

IOS開發學習筆記-(3) 進度條、等待動畫開始停止

一、建立對應空間視圖 ，如：

 

二、編寫對應的 .h 代碼，如下 ：

 

#import @interface ViewController : UIViewController@property (weak, nonatomic) IBOutlet UIActivityIndicatorView *activWaitNetWork;@property (weak, nonatomic) IBOutlet UIProgressView *pgrsDownLoad;@property (weak,nonatomic) NSTimer *timer;- (IBAction)onclickStartRequest:(id)sender;- (IBAction)onclickDownLoad:(id)sender;@end

 

三、編寫對應的 .m 檔案的實現，注釋比較詳細：

 

 

#import ViewController.h@interface ViewController ()@end@implementation ViewController@synthesize activWaitNetWork;@synthesize pgrsDownLoad;@synthesize timer;- (void)viewDidLoad{    [super viewDidLoad];// Do any additional setup after loading the view, typically from a nib.}- (IBAction)onclickStartRequest:(id)sender{        //如果正在運行，停止； 否則 開始運行載入    if ([activWaitNetWork isAnimating]) {       [activWaitNetWork stopAnimating];    }else{       [activWaitNetWork startAnimating];    }}- (IBAction)onclickDownLoad:(id)sender{        //重新開始進度    pgrsDownLoad.progress = 0;        //定時任務 跟新 Progerss 的進度    timer = [NSTimer scheduledTimerWithTimeInterval:1.0 target:self selector:@selector(update) userInfo:nil repeats:YES];    }- (void)update{        pgrsDownLoad.progress =  pgrsDownLoad.progress + 0.1 ;    //當進度完成時，提示下載完成    if(pgrsDownLoad.progress == 1){        [timer invalidate];                UIAlertView *alert  = [[UIAlertView alloc] initWithTitle:@溫馨提示 message:@檔案下載完成 delegate:self cancelButtonTitle:@確定 otherButtonTitles:@取消, nil ];                [alert show];    }    }- (void)didReceiveMemoryWarning{    [super didReceiveMemoryWarning];    // Dispose of any resources that can be recreated.}@end

四、運行效果 ，如下：