import org.robovm.apple.foundation.NSRange; //导入依赖的package包/类
@Override
public boolean shouldChangeCharacters (UITextField textField, NSRange range, String string) {
	for (int i = 0; i < range.length(); i++) {
		app.input.inputProcessor.keyTyped((char)8);
	}

	if (string.isEmpty()) {
		if (range.length() > 0) Gdx.graphics.requestRendering();
		return false;
	}

	char[] chars = new char[string.length()];
	string.getChars(0, string.length(), chars, 0);

	for (int i = 0; i < chars.length; i++) {
		app.input.inputProcessor.keyTyped(chars[i]);
	}
	Gdx.graphics.requestRendering();

	return true;
}
 

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

    gameModel = new GameModel();

    gameOver = false;
    scoreRequestTextField.setDelegate(new UITextFieldDelegateAdapter() {
        // Code to limit our text field to 4 characters.
        @Override
        public boolean shouldChangeCharacters(UITextField textField, NSRange range, String string) {
            final int maxLength = 4;

            int oldLength = textField.getText().length();
            int replacementLength = string.length();
            long rangeLength = range.getLength();
            long newLength = oldLength - rangeLength + replacementLength;

            boolean returnKey = string.indexOf('\n') != -1;

            return newLength <= maxLength || returnKey;
        }
    });
}
 

import org.robovm.apple.foundation.NSRange; //导入依赖的package包/类
@Override
public boolean shouldChangeCharacters(UITextField textField, NSRange range, String string) {
	for (int i = 0; i < range.getLength(); i++) {
		app.input.inputProcessor.keyTyped((char) 8);
	}

	if (string.isEmpty()) {
		if (range.getLength() > 0)
			Gdx.graphics.requestRendering();
		return false;
	}

	char[] chars = new char[string.length()];
	string.getChars(0, string.length(), chars, 0);

	for (int i = 0; i < chars.length; i++) {
		app.input.inputProcessor.keyTyped(chars[i]);
	}
	Gdx.graphics.requestRendering();

	return true;
}
 

import org.robovm.apple.foundation.NSRange; //导入依赖的package包/类
@Override
   @Method(selector = "textField:shouldChangeCharactersInRange:replacementString:")
   public boolean shouldChangeCharacters(UITextField textField,
    @ByVal NSRange range, String string) {
// TODO Auto-generated method stub
return true;
   }
 

import org.robovm.apple.foundation.NSRange; //导入依赖的package包/类
@IBAction
private void urlFieldWasTapped(UITextView sender) {
    // Select the url.
    urlField.setSelectedRange(new NSRange(0, urlField.getText().length()));
    // Show the copy menu.
    UIMenuController.getSharedMenuController().setTargetRect(urlField.getBounds(), urlField);
    UIMenuController.getSharedMenuController().setMenuVisible(true, true);

}
 

import org.robovm.apple.foundation.NSRange; //导入依赖的package包/类
private void handleKeyboardNotification(UIKeyboardAnimation animation) {
    double animationDuration = animation.getAnimationDuration();

    // Convert the keyboard frame from screen to view coordinates.
    CGRect keyboardScreenBeginFrame = animation.getStartFrame();
    CGRect keyboardScreenEndFrame = animation.getEndFrame();

    CGRect keyboardViewBeginFrame = getView().convertRectFromView(keyboardScreenBeginFrame, getView().getWindow());
    CGRect keyboardViewEndFrame = getView().convertRectFromView(keyboardScreenEndFrame, getView().getWindow());
    double originDelta = keyboardViewEndFrame.getOrigin().getY() - keyboardViewBeginFrame.getOrigin().getY();

    // The text view should be adjusted, update the constant for this
    // constraint.
    textViewBottomLayoutGuideConstraint
            .setConstant(textViewBottomLayoutGuideConstraint.getConstant() - originDelta);

    getView().setNeedsUpdateConstraints();

    UIView.animate(animationDuration, 0, UIViewAnimationOptions.BeginFromCurrentState, new Runnable() {
        @Override
        public void run() {
            getView().layoutIfNeeded();
        }
    }, null);

    // Scroll to the selected text once the keyboard frame changes.
    NSRange selectedRange = textView.getSelectedRange();
    textView.scrollRangeToVisible(selectedRange);
}
 

import org.robovm.apple.foundation.NSRange; //导入依赖的package包/类
@Override
public boolean shouldChangeCharacters(UITextField textField, NSRange range, String string) {
    boolean result = true;

    // restrict the maximum number of characters to 5
    if (textField.getText().length() == 5 && string.length() > 0)
        result = false;

    return result;
}
 

import org.robovm.apple.foundation.NSRange; //导入依赖的package包/类
/**
 * Deselects the text in the urlField if the user taps in the white space of
 * this view controller's view.
 */
@Override
public void touchesEnded(NSSet<UITouch> touches, UIEvent event) {
    urlField.setSelectedRange(new NSRange(0, 0));
}
 

import org.robovm.apple.foundation.NSRange; //导入依赖的package包/类
@Override
public boolean shouldChangeCharacters(UITextField textField, NSRange range, String string) {
    return true;
}