I know, this question was asked before. However I can't beleive that this operation is so difficult. I think i miss some important points on developing Blackberry applications.
Try to use the following code:
Bitmap backgroundBitmap = Bitmap.getBitmapResource("background.png");
HorizontalFieldManager horizontalFieldManager = new
HorizontalFieldManager(HorizontalFieldManager.USE_ALL_WIDTH |
HorizontalFieldManager.USE_ALL_HEIGHT){
//Override the paint method to draw the background image.
public void paint(Graphics graphics)
{
//Draw the background image and then call super.paint
//to paint the rest of the screen.
graphics.drawBitmap(0, 0, Display.getWidth(), Display.getHeight(),
backgroundBitmap, 0, 0);
super.paint(graphics);
}
};
Related
I have searched but haven't find out any solution, i have but its creating problems. when I insert this it says illegal argument and doesn't start.
Bitmap bitmap = Bitmap.getBitmapResource("Background.png");
this.getMainManager().setBackground(
BackgroundFactory.createBitmapBackground(bitmap)
);
It doesn't work.
Thanks for helping! Its working. Just a typo error of my path
tyy this -
final Bitmap top = Bitmap.getBitmapResource("your background image.png");
final VerticalFieldManager top_ = new VerticalFieldManager(Manager.NO_HORIZONTAL_SCROLL | Manager.NO_HORIZONTAL_SCROLLBAR | Manager.VERTICAL_SCROLL | Manager.VERTICAL_SCROLLBAR | Field.USE_ALL_WIDTH){
public void paint(Graphics graphics) {
graphics.drawBitmap(0, 0, top.getWidth(),
top.getHeight(), top, 0, 0);
super.paint(graphics);
}
};
Now you add all your fields to this top_. then add the top_ to your screen. If there is no fields, it will not display the background image. so Dont forget to add some fields.
I was able to add the background only to the fields that were added in the screen with the below code:
VerticalFieldManager manager = new VerticalFieldManager();
Bitmap image = Bitmap.getBitmapResource("Penguins.jpg");
Background bg = BackgroundFactory.createBitmapBackground(image);
manager.setBackground(bg);
manager.add(new LabelField("HEll"));
add(manager);</code>
the output screen is like below:
How will get the image filled with whole screen, with the fields visible on top of it. Thank you
Bitmap background = Bitmap.getBitmapResource("background.png");
VerticalFieldManager vfm = new VerticalFieldManager(USE_ALL_HEIGHT | USE_ALL_WIDTH) {
public void paint(Graphics g) {
g.drawBitmap(0, 0, "Device Width", "Device Height",
background, 0, 0);
super.paint(g);
}
};
vfm.add(new LabelField("HEll"));
add(vfm);
You can also use this code to set the background image in Blackberry, But this works only 5.0 or above.
Background bg = BackgroundFactory.createBitmapBackground(Bitmap bitmap);
// OR
Background bg = BackgroundFactory.createBitmapBackground(Bitmap bitmap, int positionX, int positionY, int repeat);
this.getMainManager().setBackground(bg);
I want to set the Background of HorizontalFieldManager.
The sample code I've been searching is setting the background using Gradient for the main screen background.
//create gradient linear for background
this.getMainManager().setBackground(BackgroundFactory.createLinearGradientBackground(0x0099CCFF,
0x0099CCFF,0x00336699,0x00336699)
);
Then I try to use the same pattern to set background to HorizontalFieldManager, since it have this method. But it won't work. Here's the code
HorizontalFieldManager hManager = new HorizontalFieldManager();
Bitmap bitmapImage = null;
bitmapImage = Bitmap.getBitmapResource("img/home.png");
tabHome = new BitmapField(bitmapImage, BitmapField.FOCUSABLE
| BitmapField.HIGHLIGHT_FOCUS);
bitmapImage = Bitmap.getBitmapResource("img/in.png");
tabCheckInOut = new BitmapField(bitmapImage, BitmapField.FOCUSABLE
| BitmapField.HIGHLIGHT_FOCUS);
bitmapImage = Bitmap.getBitmapResource("img/barcode.png");
tabBarcode = new BitmapField(bitmapImage, BitmapField.FOCUSABLE
| BitmapField.HIGHLIGHT_FOCUS);
bitmapImage = Bitmap.getBitmapResource("img/options.png");
tabOptions = new BitmapField(bitmapImage, BitmapField.FOCUSABLE
| BitmapField.HIGHLIGHT_FOCUS);
tabHome.setFocusListener(this);
tabCheckInOut.setFocusListener(this);
tabBarcode.setFocusListener(this);
tabOptions.setFocusListener(this);
Background topBack = BackgroundFactory.createSolidBackground(0x00606A85);
hManager.setBackground(topBack);
hManager.add(tabHome);
hManager.add(tabCheckInOut);
hManager.add(tabBarcode);
hManager.add(tabOptions);
add(hManager);
I'm using HorizontalFieldManager and add 4 BitmapField, then I using BackgroundFactory to create solidBackground, and set it to the manager
but when I run it, the background color does not apply. The gradient example work well. Is there anything that I'm missing? Please help me.
Thanks
After doing some deep web search. Here's the answer guys
HorizontalFieldManager manager = new HorizontalFieldManager()
{
public void paint(Graphics graphics)
{
graphics.setBackgroundColor(0x000000FF);//blue
graphics.clear();
super.paint(graphics);
}
};
UPDATE:
You must only use Web Color
such as 0x006699FF should work
but 0x00606A85 would not work.
if you want a specific color, i recommend you using bitmap.
UPDATE:
Another solution
HorizontalFieldManager manager = new HorizontalFieldManager(Field.USE_ALL_WIDTH);
manager.setBackground(BackgroundFactory.BackgroundFactory
.createSolidBackground(0x00cccccc));
how i set background image in java blackberry simulator ?
backgroundBitmap = Bitmap.getBitmapResource("background.png");
MainScreen mainScreen = new MainScreen();
HorizontalFieldManager horizontalFieldManager =
new HorizontalFieldManager(
HorizontalFieldManager.USE_ALL_WIDTH |
HorizontalFieldManager.USE_ALL_HEIGHT){
//Override the paint method to draw the background image.
public void paint(Graphics graphics) {
//Draw the background image and then call paint.
graphics.drawBitmap(0, 0, 240, 240, backgroundBitmap, 0, 0);
super.paint(graphics);
}
};
try this blog post:
How to set Background Image in Blackberry
Or this support forum thread:
drawing bitmap in Mainscreen background
Bitmap bitmapOrig = Bitmap.getBitmapResource("ICON.png");
// Create a Bitmap of arbitrary size
int scaledX = 360;
int scaledY = 415;
Bitmap bitmapScaled = new Bitmap(scaledX, scaledY);
bitmapOrig.scaleInto(bitmapScaled , Bitmap.FILTER_LANCZOS);
bitmapOrig.scaleInto(bitmapScaled , Bitmap.FILTER_BILINEAR, Bitmap.SCALE_TO_FILL);
BitmapField bitmapFieldScaled2 = new BitmapField(bitmapScaled , Field.FOCUSABLE);
homeScreen.add(bitmapFieldScaled2);
HorizontalFieldManager horizontalFieldManager = new HorizontalFieldManager(
HorizontalFieldManager.USE_ALL_WIDTH |
HorizontalFieldManager.USE_ALL_HEIGHT){
//Override the paint method to draw the background image.
public void paint(Graphics graphics) {
//Draw the background image and then call paint.
graphics.drawBitmap(0, 0, 240, 240, backgroundBitmap, 0, 0);
super.paint(graphics);
}
protected void sublayout(int maxWidth, int maxHeight){
super.sublayout(240,240);
setExtent(240,240);
}
};
in my blackberry application i have to create a effect in which fullscreen bitmap is slowly disappearing and ui screen is coming up.
protected void paint(Graphics g) {
g.setGlobalAlpha(globalAlpha);//starting value of globalAlpha is 255.
g.drawBitmap(0, 0, getWidth(), getHeight(), _bitmap, 0, 0);
g.setGlobalAlpha(255 - globalAlpha);
globalAlpha--;
super.paint(g);
}
This code is just for giving demo that what i want.
super.paint(g) is calling 255 times because of that its a poor code.
in one timer task i am calling invalidate();
So any suggestions how to implement this?
If you can get away with using 5.0 APIs, you'll save yourself a LOT of work by using the TransitionContext class. One of the transition types is "fade".