如果在某些设备中有许多图像几乎无法使用，则滚动问题

整个屏幕充满了像facebook主屏幕的图像 . 如果图像数量较少，则可以正常工作 . 但是一旦有更多图像，例如50张图像 . 在Android设备中滚动时，应用程序停留了一段时间 . 看起来好像图像中有振动 . 在三星（j7 prime）中，这个概率较低但很明显，并且在其他三星设备中似乎非常不舒服，并且它给用户带来了不安 . 然而，在我测试的其他设备中，例如在金立手机（S6s）中，该应用程序几乎无法播放 . 滚动非常困难，几乎不可滚动 .

我的演示代码

mainContainer = new Container (new BoxLayout (BoxLayout.y ()));

    for (String imgUrl : allImages){
      Image singleImg =  URLImage.createToStorage(placeholder, "small_" + imgObject + k, imgObject.toString(), URLImage.RESIZE_SCALE);
      Button b = new Button (singleImg);
      mainContainer.add (b);
    }

更新1：我已经将占位符大小更改为屏幕大小并添加了2个相同图像的btns，因此有相当大的数量 . 的图像 . 当我再次构建厨房水槽应用程序时，会出现与上述相同的问题 .

if (placeholder == null) {
    Image placeholderTmp = Image.createImage(Display.getInstance().getDisplayWidth(), Display.getInstance().getDisplayWidth(), 0);
    if (Display.getInstance().isGaussianBlurSupported()) {
        placeholderTmp = Display.getInstance().gaussianBlurImage(placeholderTmp, 10);
    } else {
        placeholderTmp = placeholderTmp.modifyAlpha((byte) 100);
    }
    placeholder = EncodedImage.createFromImage(placeholderTmp, true);
}
InfiniteContainer ic = new InfiniteContainer(10) {
    List items;
    List allItems = new ArrayList();
    String nextURL = WEBSERVICE_URL;

    @Override
    public Component[] fetchComponents(int index, int amount) {
        if (index == 0) {
            nextURL = WEBSERVICE_URL;
        }
        if (nextURL == null) {
            return null;
        }

        ConnectionRequest req = new ConnectionRequest(nextURL) {
            @Override
            protected void readResponse(InputStream input) throws IOException {
                items = null;
                JSONParser parser = new JSONParser();
                Map response = parser.parseJSON(new InputStreamReader(input, "UTF-8"));
                items = (List) response.get("items");
                nextURL = (String) response.get("nextPage");
            }

            @Override
            protected void handleException(Exception err) {
                Log.e(err);
                Display.getInstance().callSerially(() -> {
                    ToastBar.showErrorMessage("An error occured while connecting to the server: " + err);
                });
            }

            @Override
            protected void handleErrorResponseCode(int code, String message) {
                Display.getInstance().callSerially(() -> {
                    ToastBar.showErrorMessage("Error code from the server: " + code + "\n" + message);
                });
            }

        };
        req.setPost(false);
        NetworkManager.getInstance().addToQueueAndWait(req);

        if (items == null) {
            return null;
        }

        allItems.addAll(items);

        Component[] result = new Component[items.size()];
        for (int i = 0; i < 3; i++) {

            for (int iter = 0; iter < result.length; iter++) {
                Map<String, Object> m = (Map<String, Object>) items.get(iter);
                String title = (String) m.get("title");
                String details = (String) m.get("details");
                String url = (String) m.get("url");
                String thumb = (String) m.get("thumb");
                URLImage thumbImage = URLImage.createToStorage(placeholder, url.substring(url.lastIndexOf("/") + 1), thumb, URLImage.RESIZE_SCALE_TO_FILL);
                ScaleImageButton btn = new ScaleImageButton(thumbImage);
                ScaleImageButton btn1 = new ScaleImageButton(thumbImage);
                ScaleImageButton btn2 = new ScaleImageButton(thumbImage);
                btn.setBackgroundType(Style.BACKGROUND_IMAGE_SCALED_FILL);
                btn.getAllStyles().setMarginBottom(8);
                btn1.setBackgroundType(Style.BACKGROUND_IMAGE_SCALED_FILL);
                btn1.getAllStyles().setMarginBottom(8);
                btn2.setBackgroundType(Style.BACKGROUND_IMAGE_SCALED_FILL);
                btn2.getAllStyles().setMarginBottom(8);
                result[iter] = BoxLayout.encloseY(btn,btn1,btn2);
            }
        }
        Layout l = getLayout();
        if (l instanceof GridLayout) {
            int cmps = getComponentCount() - 1 + result.length;
            int extra = 0;
            if (cmps % 3 != 0) {
                extra = 1;
            }
            setLayout(new GridLayout(cmps / 3 + extra, 3));
        }
        return result;
    }
}

在这里，我添加了mainContainer中的按钮，并没有看到任何改进性能相关的解决方案 . 还有什么我需要寻找的吗？谢谢