フォーカス前の状態です。それはうまくいきます。
これが合焦状態。それはうまくいきます。
これはフォーカス後の状態です。画像が消える問題が発生しました。
右上では問題なく動作しますが、左上の画像に問題があります。
これが私のカスタムVerticalFieldManager
です:
public class Custom_TopField extends HorizontalFieldManager implements
FieldChangeListener {
private Bitmap bg = Bitmap.getBitmapResource("header_bar.png");
private Bitmap download = Bitmap.getBitmapResource("btn_download.png");
private Bitmap downloadactive = Bitmap
.getBitmapResource("btn_download_active.png");
private Bitmap refresh = Bitmap.getBitmapResource("icon_refresh.png");
private Bitmap refreshactive = Bitmap
.getBitmapResource("icon_refresh_active.png");
private Bitmap back = Bitmap.getBitmapResource("btn_back.png");
private Bitmap backctive = Bitmap.getBitmapResource("btn_back_active.png");
private Bitmap news = Bitmap.getBitmapResource("icon_news.png");
private Bitmap newsactive = Bitmap
.getBitmapResource("icon_news_active.png");
private Custom_ButtonField downloadbtn, refreshbtn, backbtn, newsbtn;
private Custom_LabelField title;
Custom_TopField(final MainScreen mainscreen) {
Background background = BackgroundFactory.createBitmapBackground(bg);
setBackground(background);
title = new Custom_LabelField("东方日报", DrawStyle.ELLIPSIS
| LabelField.USE_ALL_WIDTH | DrawStyle.HCENTER
| Field.FOCUSABLE, Color.WHITE) {
protected boolean navigationClick(int status, int time) {
Main.getUiApplication().pushScreen(new Main_AllLatestNews());
Main.getUiApplication().popScreen(mainscreen);
return true;
}
};
title.setFont(Font.getDefault().derive(Font.BOLD, 33));
add(title);
downloadbtn = new Custom_ButtonField(download, downloadactive,
downloadactive);
downloadbtn.setChangeListener(this);
add(downloadbtn);
refreshbtn = new Custom_ButtonField(refresh, refreshactive,
refreshactive);
refreshbtn.setChangeListener(this);
add(refreshbtn);
backbtn = new Custom_ButtonField(back, backctive, backctive);
backbtn.setChangeListener(this);
add(backbtn);
/*newsbtn = new Custom_ButtonField(news, newsactive, newsactive);
newsbtn.setChangeListener(this);
add(newsbtn);*/
}
protected void sublayout(int width, int height) {
Field field = getField(0);
layoutChild(field, 120, Font.getDefault().getHeight());
setPositionChild(field, (getPreferredWidth() - title.getWidth()) / 2,
15);
field = getField(1);
layoutChild(field, download.getWidth(), download.getHeight());
setPositionChild(field, getPreferredWidth()
- (download.getWidth() + 10),
getPreferredHeight() - (download.getHeight() + 5));
field = getField(2);
layoutChild(field, refresh.getWidth(), refresh.getHeight());
setPositionChild(field,
getPreferredWidth() - (refresh.getWidth() + 10),
getPreferredHeight() - (refresh.getHeight() + 5));
field = getField(3);
layoutChild(field, back.getWidth(), back.getHeight());
setPositionChild(field, 10, 5);
/*field = getField(4);
layoutChild(field, news.getWidth(), news.getHeight());
setPositionChild(field, 10, 5);*/
width = Math.min(width, getPreferredWidth());
height = Math.min(height, getPreferredHeight());
setExtent(width, height);
}
public int getPreferredHeight() {
return 70;
}
public int getPreferredWidth() {
return Display.getWidth();
}
public void paint(Graphics graphics) {
int rectHeight = getPreferredHeight();
int rectWidth = getPreferredWidth();
graphics.drawRect(0, 0, rectWidth, rectHeight);
super.paint(graphics);
}
public void fieldChanged(Field field, int context) {
if (field == downloadbtn) {
} else if (field == refreshbtn) {
} else if (field == backbtn) {
} else if (field == newsbtn) {
}
}
}
ここはcustom button field
public class Custom_ButtonField extends ButtonField {
Bitmap mNormal;
Bitmap mFocused;
Bitmap mActive;
int mWidth;
int mHeight;
private int color = -1;
String text;
public Custom_ButtonField(Bitmap normal, Bitmap focused, Bitmap active) {
super(CONSUME_CLICK | Field.FOCUSABLE);
mNormal = normal;
mFocused = focused;
mActive = active;
mWidth = mNormal.getWidth();
mHeight = mNormal.getHeight();
setMargin(0, 0, 0, 0);
setPadding(0, 0, 0, 0);
setBorder(BorderFactory.createSimpleBorder(new XYEdges(0, 0, 0, 0)));
setBorder(VISUAL_STATE_ACTIVE,
BorderFactory.createSimpleBorder(new XYEdges(0, 0, 0, 0)));
}
public Custom_ButtonField(String text, Bitmap normal, Bitmap focused,
Bitmap active, int color) {
super(CONSUME_CLICK | Field.FOCUSABLE);
this.color = color;
mNormal = normal;
mFocused = focused;
mActive = active;
mWidth = mNormal.getWidth();
mHeight = mNormal.getHeight();
setMargin(0, 0, 0, 0);
setPadding(0, 0, 0, 0);
setBorder(BorderFactory.createSimpleBorder(new XYEdges(0, 0, 0, 0)));
setBorder(VISUAL_STATE_ACTIVE,
BorderFactory.createSimpleBorder(new XYEdges(0, 0, 0, 0)));
this.text = text;
}
protected void onFocus(int direction) {
super.onFocus(direction);
}
protected void onUnfocus() {
super.onUnfocus();
}
protected void paint(Graphics graphics) {
Bitmap bitmap = null;
switch (getVisualState()) {
case VISUAL_STATE_NORMAL:
bitmap = mNormal;
break;
case VISUAL_STATE_FOCUS:
bitmap = mFocused;
break;
case VISUAL_STATE_ACTIVE:
bitmap = mActive;
break;
default:
bitmap = mNormal;
}
graphics.drawBitmap(0, 0, bitmap.getWidth(), bitmap.getHeight(),
bitmap, 0, 0);
graphics.setFont(Font.getDefault().derive(Font.BOLD, 25));
graphics.setColor(color);
graphics.drawText(text, (mNormal.getWidth() - Font.getDefault()
.getAdvance(text)) / 2, ((mNormal.getHeight() - Font
.getDefault().getHeight()) / 2) + 10, DrawStyle.HCENTER
| DrawStyle.VCENTER);
}
public int getPreferredWidth() {
return mWidth;
}
public int getPreferredHeight() {
return mHeight;
}
protected void layout(int width, int height) {
setExtent(mWidth, mHeight);
}
}