Java Code Examples for android.widget.ImageButton#isEnabled()

/**
 * Updates the button's state according to the specified scroll action currently available.
 *
 * @param button button to be updated.
 * @param scrollAction scrollAction that will be used to determine if the button should be
 *     enabled.
 */
private void updateButtonState(@Nullable ImageButton button, int scrollAction) {
  if (button == null) {
    return;
  }

  AccessibilityNode node = getScrollableNode(scrollAction);
  if (node == null) {
    // No node available to perform the action.
    if (button.isEnabled()) {
      disableImageButton(button);
    }
  } else {
    // The action is currently available.
    if (!button.isEnabled()) {
      enableImageButton(button);
    }
    AccessibilityNode.recycle("SearchScreenOverlay.updateButtonState()", node);
  }
}
 

/**
 * Initialize a known button with a click listener and a drawable resource id,
 * and a content description resource id.
 * Sets the button visible.
 */
public void initializePushButton(int buttonId, View.OnClickListener cb,
                                 int imageId, int contentDescriptionId)
{
    ImageButton button = getImageButtonOrError(buttonId);
    button.setOnClickListener(cb);
    if (imageId != NO_RESOURCE)
    {
        button.setImageResource(imageId);
    }
    if (contentDescriptionId != NO_RESOURCE)
    {
        button.setContentDescription(mAppController
                .getAndroidContext().getResources().getString(contentDescriptionId));
    }

    if (!button.isEnabled())
    {
        button.setEnabled(true);
        if (mListener != null)
        {
            mListener.onButtonEnabledChanged(this, buttonId);
        }
    }
    button.setTag(R.string.tag_enabled_id, buttonId);

    if (button.getVisibility() != View.VISIBLE)
    {
        button.setVisibility(View.VISIBLE);
        if (mListener != null)
        {
            mListener.onButtonVisibilityChanged(this, buttonId);
        }
    }
}
 

/**
 * Enables a button that has already been initialized.
 */
public void enableButton(int buttonId)
{
    // If Camera Button is blocked, ignore the request.
    if (buttonId == BUTTON_CAMERA && mIsCameraButtonBlocked)
    {
        return;
    }
    ImageButton button;
    // Manual exposure uses a regular image button instead of a
    // MultiToggleImageButton, so it requires special handling.
    // TODO: Redesign ButtonManager's button getter methods into one method.
    if (buttonId == BUTTON_EXPOSURE_COMPENSATION)
    {
        button = getImageButtonOrError(buttonId);
    } else
    {
        button = getButtonOrError(buttonId);
    }
    if (!button.isEnabled())
    {
        button.setEnabled(true);
        if (mListener != null)
        {
            mListener.onButtonEnabledChanged(this, buttonId);
        }
    }
    button.setTag(R.string.tag_enabled_id, buttonId);
}
 

public DialogLineSettings(Activity context, LinePropertiesChangeIf changeIf, LineProperties parameters)
{
    super(context, R.layout.dialog_line_settings, R.string.dialog_line_settings_title);
    this.parameters = parameters;

    widthPicker = findViewById(R.id.dialog_number_picker);
    widthPicker.setValue(parameters.width);
    widthPicker.minValue = 1;

    colorPicker = PrepareColorPicker(parameters.color);

    radioButtons = new RadioButton[4];
    radioButtons[0] = findViewById(R.id.dialog_button_line_style_solid);
    radioButtons[1] = findViewById(R.id.dialog_button_line_style_dotted);
    radioButtons[2] = findViewById(R.id.dialog_button_line_style_dashed);
    radioButtons[3] = findViewById(R.id.dialog_button_line_style_dash_dot);

    radioLines = new CustomTextView[radioButtons.length];
    radioLines[0] = findViewById(R.id.dialog_marker_line_style_solid);
    radioLines[1] = findViewById(R.id.dialog_marker_line_style_dotted);
    radioLines[2] = findViewById(R.id.dialog_marker_line_style_dashed);
    radioLines[3] = findViewById(R.id.dialog_marker_line_style_dash_dot);

    LineProperties l = new LineProperties();
    l.color = CompatUtils.getThemeColorAttr(getContext(), R.attr.colorDialogContent);
    l.width = ViewUtils.dpToPx(getContext().getResources().getDisplayMetrics(), 2);

    for (int i = 0; i < radioButtons.length; i++)
    {
        l.lineStyle = LineProperties.LineStyle.values()[i];
        l.preparePaint();
        radioLines[i].setExternalPaint(l.getPaint());
        radioLines[i].setOnClickListener(this);
        radioButtons[i].setChecked(l.lineStyle == parameters.lineStyle);
        radioButtons[i].setOnClickListener(this);
    }

    pointShapesBox = findViewById(R.id.dialog_plot_point_shapes);
    pointShapesBox.setOnClickListener(this);
    pointShapesBox.setChecked(parameters.shapeType != LineProperties.ShapeType.NONE);

    shapeSizePicker = findViewById(R.id.dialog_plot_point_shape_size);
    shapeSizePicker.setValue(parameters.shapeSize);
    shapeSizePicker.minValue = 100;
    shapeSizePicker.setEnabled(pointShapesBox.isChecked());

    shapeTypeButtons
            .put(LineProperties.ShapeType.SQUARE, (ImageButton) findViewById(R.id.dialog_plot_point_square));
    shapeTypeButtons
            .put(LineProperties.ShapeType.CIRCLE, (ImageButton) findViewById(R.id.dialog_plot_point_circle));
    shapeTypeButtons.put(LineProperties.ShapeType.DIAMOND,
            (ImageButton) findViewById(R.id.dialog_plot_point_diamond));
    shapeTypeButtons.put(LineProperties.ShapeType.CROSS, (ImageButton) findViewById(R.id.dialog_plot_point_cross));
    for (Map.Entry<LineProperties.ShapeType, ImageButton> e : shapeTypeButtons.entrySet())
    {
        ImageButton b = e.getValue();
        b.setOnClickListener(this);
        b.setOnLongClickListener(this);
        setButtonEnabled(b, pointShapesBox.isChecked());
        if (b.isEnabled())
        {
            setButtonSelected(b, e.getKey() == parameters.shapeType);
        }
    }

    this.changeIf = changeIf;
}