import org.robovm.apple.uikit.UILabel; //导入依赖的package包/类
@Method(selector = "didPressButton")
public void didPressButton() {
    UILabel textLabel = (UILabel) UIViewLayoutUtil.findViewById(getView(), "text");
    if(textLabel.getText().equals("Short text")) {
        textLabel.setText("Very long long text");
    } else {
        textLabel.setText("Short text");
    }

    UIView.animate(0.2, new Runnable() {
        @Override
        public void run() {
            getView().layoutIfNeeded();
        }
    });
}
 

import org.robovm.apple.uikit.UILabel; //导入依赖的package包/类
public MyViewController() {
    // Get the view of this view controller.
    UIView view = getView();

    // Setup background.
    view.setBackgroundColor(UIColor.white());

    // Setup label.
    label = new UILabel(new CGRect(20, 250, 280, 44));
    label.setFont(UIFont.getSystemFont(24));
    label.setTextAlignment(NSTextAlignment.Center);
    view.addSubview(label);

    // Setup button.
    button = new UIButton(UIButtonType.RoundedRect);
    button.setFrame(new CGRect(110, 150, 100, 40));
    button.setTitle("Click me!", UIControlState.Normal);
    button.getTitleLabel().setFont(UIFont.getBoldSystemFont(22));

    button.addOnTouchUpInsideListener((control, event) -> label.setText("Click Nr. " + (++clickCount)));
    view.addSubview(button);
}
 

import org.robovm.apple.uikit.UILabel; //导入依赖的package包/类
public static UITableViewCell setContentOfCell(String name, NSURL url, String adresse, String email) {
	UITableViewCell cell = new UITableViewCell(new CGRect(0, 0, 300, 60));
	UIImageView img = new UIImageView(new CGRect(20, 10, 70, 70));
	NSData data = (NSData)NSData.read(url);
	img.setImage(new UIImage(data));		
	cell.getContentView().addSubview(img);
	
	UILabel label1 = new UILabel(new CGRect(100, 10, cell.getContentView().getFrame().getWidth(), 20));
	label1.setText(name);
	label1.setTextColor(UIColor.colorBrown());
	cell.getContentView().addSubview(label1);
	
	UILabel label2 = new UILabel(new CGRect(100, 35, cell.getContentView().getFrame().getWidth(), 20));
	label2.setText(adresse);
	cell.getContentView().addSubview(label2);
	
	UILabel label3 = new UILabel(new CGRect(100, 55, cell.getContentView().getFrame().getWidth(), 20));
	label3.setText(email);
	cell.getContentView().addSubview(label3);
	return cell;
}
 

import org.robovm.apple.uikit.UILabel; //导入依赖的package包/类
/** Recenter content periodically to achieve impression of infinite scrolling. */
private void recenterIfNecessary () {
    CGPoint currentOffset = getContentOffset();
    double contentWidth = getContentSize().getWidth();
    double centerOffsetX = (contentWidth - getBounds().getSize().getWidth()) / 2.0;
    double distanceFromCenter = Math.abs(currentOffset.getX() - centerOffsetX);

    if (distanceFromCenter > (contentWidth / 4.0)) {
        setContentOffset(currentOffset.setX(centerOffsetX));

        // move content by the same amount so it appears to stay still
        for (UILabel label : visibleLabels) {
            CGPoint center = labelContainerView.convertPointToView(label.getCenter(), this);
            center.setX(center.getX() + centerOffsetX - currentOffset.getX());
            label.setCenter(convertPointToView(center, labelContainerView));
        }
    }
}
 

import org.robovm.apple.uikit.UILabel; //导入依赖的package包/类
/**
 * This delegate method is implemented because the height of the cell
 * displaying the question will need to change depending on the height
 * required to display the question text. As the device rotates this will
 * change.
 */
@Override
public double getHeightForRow(UITableView tableView, NSIndexPath indexPath) {
    if (indexPath.getSection() == 0) {
        UITableViewCell questionCell = tableView.dequeueReusableCell("QuestionCell");
        UILabel questionLabel = questionCell.getTextLabel();

        // The width must be constrained to the width of the table view
        // minus the
        // left and right margin of a grouped style cell.
        // Unfortunately, there is no way to lookup exactly what that margin
        // is, so
        // it must be hardcoded.
        // The height is left unconstrained.
        CGSize constrainingSize = new CGSize(tableView.getBounds().getSize().getWidth() - 40 * 2, Float.MAX_VALUE);

        NSAttributedString string = new NSAttributedString(questionLabel.getText(),
                new NSAttributedStringAttributes().setFont(questionLabel.getFont()));
        return string.getBoundingRect(constrainingSize, NSStringDrawingOptions.UsesLineFragmentOrigin, null)
                .getHeight() + 22;
    }
    return tableView.getRowHeight();
}
 

import org.robovm.apple.uikit.UILabel; //导入依赖的package包/类
@Override
public void onValueChanged(UIControl control) {
    UIStepper stepper = (UIStepper) control;
    System.out.println(String.format("A stepper changed its value: %s.", control));

    // Figure out which stepper was selected and update its associated
    // label.
    UILabel stepperLabel = null;
    if (defaultStepper == stepper) {
        stepperLabel = defaultStepperLabel;
    } else if (tintedStepper == stepper) {
        stepperLabel = tintedStepperLabel;
    } else if (customStepper == stepper) {
        stepperLabel = customStepperLabel;
    }

    if (stepperLabel != null) {
        stepperLabel.setText(String.valueOf((int) stepper.getValue()));
    }
}
 

import org.robovm.apple.uikit.UILabel; //导入依赖的package包/类
public FeaturedViewController() {
    setTabBarItem(new UITabBarItem(UITabBarSystemItem.Featured, 0));

    UIView view = getView();
    view.setBackgroundColor(UIColor.fromRGBA(0.9, 1, 0.7, 1));

    titleLabel = new UILabel(new CGRect(0, 0, 100, 100));
    titleLabel.setFont(UIFont.getSystemFont(17));
    titleLabel.setText("Featured");
    titleLabel.setTranslatesAutoresizingMaskIntoConstraints(false);
    view.addSubview(titleLabel);

    // Layout
    Map<String, NSObjectProtocol> views = new HashMap<>();
    views.put("parent", view);
    views.put("title", titleLabel);

    view.addConstraints(NSLayoutConstraint.createConstraints("H:[parent]-(<=1)-[title]",
            NSLayoutFormatOptions.AlignAllCenterY, null, views));
    view.addConstraints(NSLayoutConstraint.createConstraints("V:[parent]-(<=1)-[title]",
            NSLayoutFormatOptions.AlignAllCenterX, null, views));
}
 

import org.robovm.apple.uikit.UILabel; //导入依赖的package包/类
public FavoritesViewController() {
    setTabBarItem(new UITabBarItem(UITabBarSystemItem.Favorites, 0));

    UIView view = getView();
    view.setBackgroundColor(UIColor.fromRGBA(0.77, 1, 1, 1));

    titleLabel = new UILabel(new CGRect(0, 0, 100, 100));
    titleLabel.setFont(UIFont.getSystemFont(17));
    titleLabel.setText("Favorites");
    titleLabel.setTranslatesAutoresizingMaskIntoConstraints(false);
    view.addSubview(titleLabel);

    // Layout
    Map<String, NSObjectProtocol> views = new HashMap<>();
    views.put("parent", view);
    views.put("title", titleLabel);

    view.addConstraints(NSLayoutConstraint.createConstraints("H:[parent]-(<=1)-[title]",
            NSLayoutFormatOptions.AlignAllCenterY, null, views));
    view.addConstraints(NSLayoutConstraint.createConstraints("V:[parent]-(<=1)-[title]",
            NSLayoutFormatOptions.AlignAllCenterX, null, views));
}
 

import org.robovm.apple.uikit.UILabel; //导入依赖的package包/类
public FourViewController() {
    setTabBarItem(new UITabBarItem("Four", UIImage.getImage("tab4"), 0));

    UIView view = getView();
    view.setBackgroundColor(UIColor.fromRGBA(0.32, 1, 0.3, 1));

    titleLabel = new UILabel();
    titleLabel.setFont(UIFont.getSystemFont(17));
    titleLabel.setText("FOUR");
    titleLabel.setTranslatesAutoresizingMaskIntoConstraints(false);
    view.addSubview(titleLabel);

    // Layout
    Map<String, NSObjectProtocol> views = new HashMap<>();
    views.put("parent", view);
    views.put("title", titleLabel);

    view.addConstraints(NSLayoutConstraint.createConstraints("H:[parent]-(<=1)-[title]",
            NSLayoutFormatOptions.AlignAllCenterY, null, views));
    view.addConstraints(NSLayoutConstraint.createConstraints("V:[parent]-(<=1)-[title]",
            NSLayoutFormatOptions.AlignAllCenterX, null, views));
}
 

import org.robovm.apple.uikit.UILabel; //导入依赖的package包/类
@Override
public void viewDidLoad() {
    super.viewDidLoad();

    UILabel otherLabel = (UILabel) UIViewLayoutUtil.findViewById(getView(), "otherText");
    otherLabel.setContentMode(UIViewContentMode.ScaleToFill);
}
 

import org.robovm.apple.uikit.UILabel; //导入依赖的package包/类
public ExampleCollectionViewCell(CGRect frame) {
    super("collectionViewCell.xml");

    titleLabel = (UILabel) findViewById("title");
    subtitleLabel = (UILabel) findViewById("subtitle");
    descriptionLabel = (UILabel) findViewById("description");
}
 

import org.robovm.apple.uikit.UILabel; //导入依赖的package包/类
public MyViewController() {
    // Get the view of this view controller.
    UIView view = getView();

    // Get the bounds of the view.
    double viewWidth = view.getBounds().getWidth();
    double viewHeight = view.getBounds().getHeight();

    // Setup a label. Centered in the top half of the screen.
    double labelWidth = viewWidth;
    double labelHeight = 150;
    double labelX = (viewWidth - labelWidth) / 2.0;
    double labelY = (viewHeight * 1.0 / 4.0) - labelHeight / 2.0;
    label = new UILabel(new CGRect(labelX, labelY, labelWidth, labelHeight));
    label.setFont(UIFont.getSystemFont(40));
    label.setTextAlignment(NSTextAlignment.Center);
    view.addSubview(label);

    // Setup a button. Centered in the bottom half of the screen.
    double buttonWidth = viewWidth - 200;
    double buttonHeight = 150;
    double buttonX = (viewWidth - buttonWidth) / 2.0;
    double buttonY = (viewHeight * 3.0 / 4.0) - buttonHeight / 2.0;
    button = new UIButton(UIButtonType.RoundedRect);
    button.setFrame(new CGRect(buttonX, buttonY, buttonWidth, buttonHeight));
    button.setTitle("Click me!", UIControlState.Normal);
    button.getTitleLabel().setFont(UIFont.getBoldSystemFont(40));

    // Listen on clicks on the button and update the label.
    button.addOnPrimaryActionTriggeredListener((control) -> label.setText("Click Nr. " + (++clickCount)));
    view.addSubview(button);
}
 

import org.robovm.apple.uikit.UILabel; //导入依赖的package包/类
public void setContentOfCell(UITableViewCell cell, String txt, NSURL url) {
	UIImageView img = new UIImageView(new CGRect(25, 5, 80, 80));
   	NSData data = (NSData) NSData.read(url);
	img.setImage(new UIImage(data));
	cell.getContentView().addSubview(img);

	UILabel label = new UILabel(new CGRect(120, 30, cell.getContentView()
			.getFrame().getWidth(), 20));
	label.setText(txt);
	cell.getContentView().addSubview(label);
}
 

import org.robovm.apple.uikit.UILabel; //导入依赖的package包/类
private UILabel insertLabel () {
    UILabel label = new UILabel(new CGRect(0, 0, 500, 80));
    label.setNumberOfLines(3);
    label.setText("1024 Block Street\nShaffer, CA\n95014");
    labelContainerView.addSubview(label);

    return label;
}
 

import org.robovm.apple.uikit.UILabel; //导入依赖的package包/类
private double placeNewLabelOnRight (double rightEdge) {
    UILabel label = insertLabel();
    visibleLabels.add(label); // add rightmost label at the end of the array

    CGRect frame = label.getFrame();
    frame.getOrigin().setX(rightEdge);
    frame.getOrigin().setY(labelContainerView.getBounds().getSize().getHeight() - frame.getSize().getHeight());
    label.setFrame(frame);

    return frame.getMaxX();
}
 

import org.robovm.apple.uikit.UILabel; //导入依赖的package包/类
private double placeNewLabelOnLeft (double leftEdge) {
    UILabel label = insertLabel();
    visibleLabels.add(0, label); // add leftmost label at the beginning of the array

    CGRect frame = label.getFrame();
    frame.getOrigin().setX(leftEdge - frame.getSize().getWidth());
    frame.getOrigin().setY(labelContainerView.getBounds().getSize().getHeight() - frame.getSize().getHeight());
    label.setFrame(frame);

    return frame.getMinX();
}
 

import org.robovm.apple.uikit.UILabel; //导入依赖的package包/类
private void tileLabels (double minimumVisibleX, double maximumVisibleX) {
    // the upcoming tiling logic depends on there already being at least one label in the visibleLabels array, so
    // to kick off the tiling we need to make sure there's at least one label
    if (visibleLabels.size() == 0) {
        placeNewLabelOnRight(minimumVisibleX);
    }

    // add labels that are missing on right side
    UILabel lastLabel = visibleLabels.get(visibleLabels.size() - 1);
    double rightEdge = lastLabel.getFrame().getMaxX();
    while (rightEdge < maximumVisibleX) {
        rightEdge = placeNewLabelOnRight(rightEdge);
    }

    // add labels that are missing on left side
    UILabel firstLabel = visibleLabels.get(0);
    double leftEdge = firstLabel.getFrame().getMinX();
    while (leftEdge > minimumVisibleX) {
        leftEdge = placeNewLabelOnLeft(leftEdge);
    }

    // remove labels that have fallen off right edge
    lastLabel = visibleLabels.get(visibleLabels.size() - 1);
    while (lastLabel.getFrame().getOrigin().getX() > maximumVisibleX) {
        lastLabel.removeFromSuperview();
        visibleLabels.remove(visibleLabels.size() - 1);
        lastLabel = visibleLabels.get(visibleLabels.size() - 1);
    }

    // remove labels that have fallen off left edge
    firstLabel = visibleLabels.get(0);
    while (firstLabel.getFrame().getMaxX() < minimumVisibleX) {
        firstLabel.removeFromSuperview();
        visibleLabels.remove(0);
        firstLabel = visibleLabels.get(0);
    }
}
 

import org.robovm.apple.uikit.UILabel; //导入依赖的package包/类
public LoadingStatus(CGRect frame) {
    super(frame);

    setBackgroundColor(UIColor.fromRGBA(0, 0, 0, 0.4));
    String loadingString = "Loading Photos…";

    UIFont loadingFont = UIFont.getBoldSystemFont(17);

    NSAttributedStringAttributes attrs = new NSAttributedStringAttributes().setFont(loadingFont);
    CGRect rect = new NSString(loadingString).getBoundingRect(new CGSize(frame.getWidth(), frame.getHeight()),
            NSStringDrawingOptions.with(NSStringDrawingOptions.UsesLineFragmentOrigin,
                    NSStringDrawingOptions.UsesFontLeading), attrs, null);
    CGSize labelSize = rect.getSize();

    double centerX = Math.floor((frame.getWidth() / 2) - (labelSize.getWidth() / 2));
    double centerY = Math.floor((frame.getHeight() / 2) - (labelSize.getHeight() / 2));
    loadingLabel = new UILabel(new CGRect(centerX, centerY, labelSize.getWidth(), labelSize.getHeight()));
    loadingLabel.setBackgroundColor(UIColor.clear());
    loadingLabel.setTextColor(UIColor.white());
    loadingLabel.setText(loadingString);
    loadingLabel.setFont(loadingFont);

    progress = new UIActivityIndicatorView(UIActivityIndicatorViewStyle.White);
    CGRect progressFrame = progress.getFrame();
    progressFrame.getOrigin().setX(centerX - progressFrame.getWidth() - 8);
    progressFrame.getOrigin().setY(centerY);
    progress.setFrame(progressFrame);

    addSubview(progress);
    addSubview(loadingLabel);
}
 

import org.robovm.apple.uikit.UILabel; //导入依赖的package包/类
public void setElement(AtomicElement element) {
    this.element = element;

    AtomicElementTileView elementTileView = (AtomicElementTileView) getContentView().getViewWithTag(1);
    elementTileView.setElement(element);

    UILabel labelView = (UILabel) getContentView().getViewWithTag(2);
    labelView.setText(element.getName());

    elementTileView.setNeedsDisplay();
    labelView.setNeedsDisplay();
}
 

import org.robovm.apple.uikit.UILabel; //导入依赖的package包/类
public Cell(CGRect frame) {
    super(frame);

    // change to our custom selected background view
    CustomCellBackground backgroundView = new CustomCellBackground(CGRect.Zero());
    setSelectedBackgroundView(backgroundView);

    image = new UIImageView(new CGRect(5, 6, 144, 105));
    addSubview(image);
    label = new UILabel(new CGRect(0, 109, 153, 18));
    label.setFont(UIFont.getSystemFont(12));
    label.setTextColor(UIColor.white());
    label.setTextAlignment(NSTextAlignment.Center);
    addSubview(label);
}