UIActivityIndi​​catorView或者其他類似

Question

alt text http://28.media.tumblr.com/tumblr_ky3ezghsar1qzzxzzo1_400.jpg

誰能告訴我如何實現這樣的加載消息？它是UIActivityIndi​​catorView的一些變體嗎？ 謝謝 彼得

Answer 1

旋轉輪絕對是一個UIActivityIndi​​catorView。 「加載...」文本是一個UILabel，矩形可以是一個圖像或者可以是一個圓角的UIView（通過CALayer）。有關郵件其餘部分的任何問題？ T

Answer 2

如果您正在尋找現有的解決方案，您可以使用three20庫 - 它們已在TTActivityLabel類中實現此功能。

Answer 3

類似的東西在你的自定義子類的UIView initWithFrame如下：

_hudView = [[UIView alloc] initWithFrame:CGRectMake(75, 155, 170, 170)]; 
    _hudView.backgroundColor = [UIColor colorWithRed:0 green:0 blue:0 alpha:0.5]; 
    _hudView.clipsToBounds = YES; 
    _hudView.layer.cornerRadius = 10.0; 

    _activityIndicatorView = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhiteLarge]; 
    _activityIndicatorView.frame = CGRectMake(65, 40, _activityIndicatorView.bounds.size.width, _activityIndicatorView.bounds.size.height); 
    [_hudView addSubview:_activityIndicatorView]; 
    [_activityIndicatorView startAnimating]; 

    _captionLabel = [[UILabel alloc] initWithFrame:CGRectMake(20, 115, 130, 22)]; 
    _captionLabel.backgroundColor = [UIColor clearColor]; 
    _captionLabel.textColor = [UIColor whiteColor]; 
    _captionLabel.adjustsFontSizeToFitWidth = YES; 
    _captionLabel.textAlignment = NSTextAlignmentCenter; 
    _captionLabel.text = @"Loading..."; 
    [_hudView addSubview:_captionLabel]; 

    [self addSubview:_hudView]; 

Answer 4

我做的方式這個作品更簡單流暢的我;

設計裏面你「的MainWindow.xib」 它可全部通過應用 的壽命在Interface Builder您加載視圖（當然，如果你有一個，根據類型和選擇的結構） 如果您沒有一個，只是在一些視圖中設計它，你可以以編程方式從你的主AppDelegate中獲取一個指針（使用你的設計選擇的味道，但使用MainWindow.xib是最簡單的）

然後將此視圖映射到您的YourApp類是您的臭名昭着的應用程序委託類。

Let the designed View map to an IBOutlet named "loading" 
inside your app delegate class "YourApp" 
by using the Interface Builder's wiring 

然後，把下面的功能在一些班級，享受他們

此爲您展示運行一些昂貴的東西之前加載圖。

+(void)showLoading { 
    YourApp* app = (YourApp*)[[UIApplication sharedApplication] delegate]; 
    [UIApplication sharedApplication].networkActivityIndicatorVisible = true; 
    [app.loading removeFromSuperview]; 
    [app.window addSubview:app.loading]; 
    app.loading.alpha = 0.0; 
    [UIView beginAnimations:nil context:NULL]; 
    [UIView setAnimationDuration:0.50]; 
    app.loading.alpha = 0.8; 
    [UIView commitAnimations]; 
} 

並將其從回調中移除或者在昂貴的操作完成時將其移除;

+(void)hideLoading { 
    [UIApplication sharedApplication].networkActivityIndicatorVisible = false; 
    YourApp* app = (YourApp*)[[UIApplication sharedApplication] delegate]; 
    [app.loading removeFromSuperview]; 
} 

PS：是的，我使用NULL，真，假的不是零，YES，NO出於顯而易見的原因...

希望它能幫助， 享受...

Answer 5

看到這----

- (void)viewDidLoad { 
    [super viewDidLoad]; 

     // [self ShowMsg]; 

    //-----------------checking version of IOS ----------------------------------- 
    CGFloat ver = [[[UIDevice currentDevice]systemVersion]floatValue]; 
    NSString *str = [NSString stringWithFormat:@"%f",ver]; 
    NSLog(@"%@",str); 
    NSArray *arr = [str componentsSeparatedByString:@"."]; 
    strVerChk = [arr objectAtIndex:0]; 
    NSLog(@"%@",strVerChk); 
    [strVerChk retain]; 

    NSInteger verChk = [[NSString stringWithFormat:@"%@",strVerChk]intValue]; 
    NSLog(@"integer %d",verChk); 
    if (verChk < 5) { 
     imag = [UIImage imageNamed:@"WaitScreen.png"]; 
    } 
    else 
    { 
     imag = [UIImage imageNamed:@"WaitScreen_5.png"]; 
    } 
    Lblmsg = [[UILabel alloc]init]; 
       //WithFrame:CGRectMake(10, 10, 100, 30)]; 
    Lblmsg.backgroundColor = [UIColor clearColor]; 
    Lblmsg.textColor = [UIColor whiteColor]; 
    Lblmsg.text = @"  Please Wait...."; 

    if(UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) 
    { 
     [Lblmsg setFont:[UIFont fontWithName:@"Arial" size:16]]; 
    }else 
    { 
     [Lblmsg setFont:[UIFont fontWithName:@"Arial" size:12]]; 
    } 

    Lblmsg.textAlignment = UITextAlignmentCenter; 
    activityInd = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhiteLarge]; 
    // [activityInd startAnimating]; 

    imageview = [[UIImageView alloc]initWithImage:imag]; 
    [imageview addSubview:Lblmsg]; 
    [imageview addSubview:activityInd]; 
    [self.view addSubview:imageview]; 
    self.view.backgroundColor = [UIColor clearColor]; 

    if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPhone) 
    { 

     // self.interfaceOrientation = [UIApplication sharedApplication].statusBarOrientation 
     UIInterfaceOrientation orientation = [[UIApplication sharedApplication] statusBarOrientation]; 
     if(orientation == UIInterfaceOrientationPortrait ||orientation == UIInterfaceOrientationPortraitUpsideDown) 
     { 
      self.view.frame = CGRectMake(0, 0, 320, 480); 
      imageview.frame = CGRectMake(100, 130, 120, 80); 
     } 
     else{ 
      self.view.frame = CGRectMake(0, 0, 480, 320); 
      imageview.frame = CGRectMake(180, 70, 120, 80); 

     } 
     Lblmsg.frame = CGRectMake(0, 45, 120, 40); 

     NSInteger verChk = [[NSString stringWithFormat:@"%@",strVerChk]intValue]; 
     NSLog(@"integer %d",verChk); 
     if (verChk < 5) { 
      activityInd.frame = CGRectMake(41, 9, 28, 28); 
     } 
     else 
     { 
      activityInd.frame = CGRectMake(41, 9, 28, 28); 
     } 
     [activityInd startAnimating]; 
    } 
    else{ 

     UIInterfaceOrientation orientation = [[UIApplication sharedApplication] statusBarOrientation]; 
     if(orientation == UIInterfaceOrientationPortrait ||orientation == UIInterfaceOrientationPortraitUpsideDown) 
     { 
      self.view.frame = CGRectMake(0, 0, 768, 1024); 
      imageview.frame = CGRectMake(274, 330, 210, 160); 
      Lblmsg.frame = CGRectMake(10, 115, 190, 30); 
      NSInteger verChk = [[NSString stringWithFormat:@"%@",strVerChk]intValue]; 
      NSLog(@"integer %d",verChk); 
      if (verChk < 5) {   
      activityInd.frame = CGRectMake(71, 20, 52, 52); 
      } 
      else 
      { 
       activityInd.frame = CGRectMake(71, 20, 49, 49); 
      } 
      [activityInd startAnimating]; 

     } 
     else{ 
      self.view.frame = CGRectMake(0, 0, 1024, 768); 
      imageview.frame = CGRectMake(390, 264, 200, 150); 
      Lblmsg.frame = CGRectMake(10, 115, 180, 30); 

      NSInteger verChk = [[NSString stringWithFormat:@"%@",strVerChk]intValue]; 
      NSLog(@"integer %d",verChk); 
      if (verChk < 5) {   
       activityInd.frame = CGRectMake(68, 17, 52, 52); 
      } 
      else 
      { 
       activityInd.frame = CGRectMake(68, 17, 49, 49); 
      } 
      [activityInd startAnimating]; 

     } 


    } 


    [[NSNotificationCenter defaultCenter] addObserver:self 
              selector:@selector(didRotate) 
               name:@"UIDeviceOrientationDidChangeNotification" object:nil]; 

} 
-(void)didRotate{ 

    if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPhone) 
    { 

     // self.interfaceOrientation = [UIApplication sharedApplication].statusBarOrientation 
     UIInterfaceOrientation orientation = [[UIApplication sharedApplication] statusBarOrientation]; 
     if(orientation == UIInterfaceOrientationPortrait ||orientation == UIInterfaceOrientationPortraitUpsideDown) 
     { 
      self.view.frame = CGRectMake(0, 0, 320, 480); 
      imageview.frame = CGRectMake(100, 130, 120, 80); 
      //Lblmsg.frame = CGRectMake(0, 40, 120, 30); 
      //activityInd.frame = CGRectMake(20, 10, 80, 30); 


     } 
     else{ 
      self.view.frame = CGRectMake(0, 0, 480, 320); 
      imageview.frame = CGRectMake(180, 70, 120, 80); 

      //activityInd.frame = CGRectMake(20, 10, 80, 30); 
      //activityInd.frame = CGRectMake(50, 15, 10, 10); 
      //[activityInd startAnimating]; 


     } 
     Lblmsg.frame = CGRectMake(0, 45, 120, 40); 
     NSInteger verChk = [[NSString stringWithFormat:@"%@",strVerChk]intValue]; 
     NSLog(@"integer %d",verChk); 
     if (verChk < 5) { 
      activityInd.frame = CGRectMake(41, 9, 28, 28); 
     } 
     else 
     { 
      activityInd.frame = CGRectMake(41, 9, 28, 28); 
     } 

     [activityInd startAnimating]; 
    } 
    else{ 

     UIInterfaceOrientation orientation = [[UIApplication sharedApplication] statusBarOrientation]; 
     if(orientation == UIInterfaceOrientationPortrait ||orientation == UIInterfaceOrientationPortraitUpsideDown) 
     { 
      self.view.frame = CGRectMake(0, 0, 768, 1024); 
      imageview.frame = CGRectMake(274, 330, 210, 160); 
      Lblmsg.frame = CGRectMake(10, 115, 190, 30); 
      NSInteger verChk = [[NSString stringWithFormat:@"%@",strVerChk]intValue]; 
      NSLog(@"integer %d",verChk); 
      if (verChk < 5) {   
       activityInd.frame = CGRectMake(71, 20, 52, 52); 
      } 
      else 
      { 
       activityInd.frame = CGRectMake(71, 20, 49, 49); 
      } 
      [activityInd startAnimating]; 


     } 
     else{ 
      self.view.frame = CGRectMake(0, 0, 1024, 768); 
      imageview.frame = CGRectMake(390, 264, 200, 150); 
      Lblmsg.frame = CGRectMake(10, 115, 180, 30); 
      NSInteger verChk = [[NSString stringWithFormat:@"%@",strVerChk]intValue]; 
      NSLog(@"integer %d",verChk); 
      if (verChk < 5) {   
       activityInd.frame = CGRectMake(68, 17, 52, 52); 
      } 
      else 
      { 
       activityInd.frame = CGRectMake(68, 17, 49, 49); 
      } 
      [activityInd startAnimating]; 


     } 


    } 


} 

Answer 6

如果你想要一個不同的動畫，我創建了一個自定義的UIView（Loader Animation）到你可以加載到的UIActivity一個子類。