如何從UIImageView創建UIImage？

Question

我正在嘗試在我的應用程序上實現一組動畫圖像。

NSArray *myImages = [NSArray arrayWithObjects:
    [UIImage imageNamed:@"myImage1.png"],
    [UIImage imageNamed:@"myImage2.png"],
    [UIImage imageNamed:@"myImage3.png"],
    [UIImage imageNamed:@"myImage4.gif"],
    nil];

UIImageView *myAnimatedView = [UIImageView alloc];
[myAnimatedView initWithFrame:[self bounds]];
myAnimatedView.animationImages = myImages;
myAnimatedView.animationDuration = 0.25; // seconds
myAnimatedView.animationRepeatCount = 0; // 0 = loops forever
[myAnimatedView startAnimating];
[self addSubview:myAnimatedView];
[myAnimatedView release];

好的，但是問題是我正在使用API​​函數在地圖上放置標記。

該功能如下：

RMMarker *newMarker;
UIImage *blueMarkerImage = [UIImage imageNamed:@"marker.png"];
newMarker = [[RMMarker alloc] initWithUIImage:blueMarkerImage anchorPoint:CGPointMake(0.5, 1.0)];


[mapView.contents.markerManager addMarker:newMarker AtLatLong:position];
[newMarker release];

問題是“ initWithUIImage：”僅適用於UIImage，不適用於UIImageView。

那么，我該如何解決呢？

更新：我的新代碼不起作用：

NSArray *myImages = [NSArray arrayWithObjects:                           
                         [UIImage imageNamed:@"marker0.png"],
                         [UIImage imageNamed:@"marker1.png"],
                         [UIImage imageNamed:@"marker2.png"],
                         [UIImage imageNamed:@"marker3.png"],
                         [UIImage imageNamed:@"marker4.png"],
                         nil];

    UIImageView *myAnimatedView = [UIImageView alloc];
    myAnimatedView.animationImages = myImages;
    myAnimatedView.animationDuration = 10; // seconds
    myAnimatedView.animationRepeatCount = 1; // 0 = loops forever
    [myAnimatedView startAnimating];
    RMMarker *newMarker = [[RMMarker alloc] initWithUIImage:[myAnimatedView image] anchorPoint:CGPointMake(0.5, 1.0)];
    [mapView.contents.markerManager addMarker:newMarker AtLatLong:markerPosition];

Answer 1

您可以嘗試使用來自UIImageView image消息：

 newMarker = 
     [
          [RMMarker alloc] 
              initWithUIImage:[myAnimatedView image] 
              anchorPoint:CGPointMake(0.5, 1.0)
     ];

或者，如果您需要創建UIImageView則可以嘗試：

 UIImageView *newMakerImageView = 
     [[UIImageView alloc] initWithImage:
        [
          [RMMarker alloc] 
              initWithUIImage:yourImageHere
              anchorPoint:CGPointMake(0.5, 1.0)
        ]
     ];

Answer 2

UIImageView *myAnimatedView = [UIImageView alloc] 

那可能只是復制/粘貼錯誤，但是您忘記了init。

UIImageView *myAnimatedView = [[[UIImageView alloc] initWithFrame:[self bounds]] autorelease]