ButtonFieldBlackBerry で、クリック イベント中に背景色を変更する方法は? たとえば、長押しの場合、背景色を変更する必要があります。私にとっては、デフォルトの青を使用します。変更方法は？
これはカスタム ボタン フィールドです。ただし、ボタン クリック イベントのデフォルトの青色が表示されます。
public class CustomButtonField extends ButtonField implements GlobalConstant {
int mHeight;
int mWidth;
public final static int DEFAULT_BACKGROUND_COLOR_NORMAL = 0x167c9c;
public final static int DEFAULT_BACKGROUND_COLOR_ON_FOCUS = 0x188118;
private int backgroundColorNormal = DEFAULT_BACKGROUND_COLOR_NORMAL;
private int backgroundColorOnFocus = DEFAULT_BACKGROUND_COLOR_ON_FOCUS;
private Background noraml_bg;
private Background focus_bg;
private boolean isFocusable;
private boolean isround_button = false;
public CustomButtonField(int height, int width, String label) {
super(label, CONSUME_CLICK);
noraml_bg = menuButton_bgNormal;
focus_bg = menuButton_bgFocus;
mHeight = height;
mWidth = width;
this.isFocusable = true;
setBorder(BorderFactory.createSimpleBorder(new XYEdges(0, 0, 0, 0)));
setBorder(VISUAL_STATE_ACTIVE,
BorderFactory.createSimpleBorder(new XYEdges(0, 0, 0, 0)));
}
public CustomButtonField(int height, int width, String label, boolean isround_button) {
super(label, CONSUME_CLICK);
this.isround_button = isround_button;
noraml_bg = roundButton_bgNormal;
focus_bg = roundButton_bgFocus;
mHeight = height;
mWidth = width;
this.isFocusable = true;
XYEdges padding = new XYEdges(1,1,1,1);
XYEdges color = new XYEdges (Color.BLACK,Color.BLACK,Color.BLACK,Color.BLACK);
int lineStyle = Border.STYLE_SOLID;
Border roundedBorder = BorderFactory.createSimpleBorder(padding, color, lineStyle);
setBorder(roundedBorder);
}
/*
* (non-Javadoc)
*
* @see net.rim.device.api.ui.component.ButtonField#getPreferredHeight()
*/
public int getPreferredHeight() {
return mHeight;
}
/*
* (non-Javadoc)
*
* @see net.rim.device.api.ui.component.ButtonField#getPreferredWidth()
*/
public int getPreferredWidth() {
return mWidth;
}
/*
* (non-Javadoc)
*
* @see net.rim.device.api.ui.component.ButtonField#layout(int, int)
*/
protected void layout(int width, int height) {
super.layout(mWidth, mHeight);
setExtent(mWidth, mHeight);
}
/*
* (non-Javadoc)
*
* @see
* net.rim.device.api.ui.component.ButtonField#paint(net.rim.device.api.
* ui.Graphics)
*/
protected void paint(Graphics graphics) {
String label = getLabel();
int x = (getPreferredWidth() - getFont().getAdvance(label)) >> 1;
int y = (getPreferredHeight() - getFont().getHeight()) >> 1;
if (isFocus() == false) {
this.setBackground(noraml_bg);
if(isround_button){
graphics.setColor(0x666666);
}else{
graphics.setColor(Color.WHITE);
}
graphics.drawText(label, x, y);
} else {
this.setBackground(focus_bg);
graphics.setColor(Color.WHITE);
graphics.drawText(label, x, y);
}
}
protected void drawFocus(Graphics graphics, boolean on) {
if (on) {
graphics.setColor(backgroundColorOnFocus);
} else {
graphics.setColor(backgroundColorNormal);
}
}
public boolean isFocusable() {
return isFocusable;
}
}