Changing ListView seperator and selection color - Android

1) How to change listview separator color and selection color?

use the following in your listview

android:id="@+id/homeListView"
android:drawSelectorOnTop="false"
android:listSelector="@drawable/rollover_singleline"
android:divider="#ffebb5"
android:dividerHeight="1px"
android:paddingTop="50dip"
android:layout_width="fill_parent"
android:layout_height="fill_parent">




Thanks.

Android - Passing Data between Activity

Hi

You can pass the data between Activity using Bundle in Android.

To launch an activity we use to create an intent. using the intent object we can pass the data

For Example

Intent i = new Intent(this, InvokedIntent.class);
i.putExtra("floatValue", 5.0f);
i.putExtra("StringValue", "baz");
startActivity(i);

floatvalues and stringvalues are user defined keyword, In the InvokedIntent class we use this keyword to retrieve the value. Similarly we can add multiple entries here.

To read the passed value, Inside the InvokedActivity Class

Bundle extras = getIntent().getExtras();
if(extras !=null)
{
float foo = extras.getFloat("floatValue");
String bar = extras.getString("StringValue");
}

That's it.

Check: http://developer.android.com/reference/android/os/Bundle.html

Thanks.

Creating custom font - J2me

Hi..

Please check the following post from forum.nokia.com

http://discussion.forum.nokia.com/forum/showthread.php?122363-Custom-font&p=531131#post531131

Or check the following.

1: Draw Your Font

Lay the characters out in a grid. Don't put them in one long, thin strip, as some devices have problems with images that have one, very large dimension.

To simplify things, each cell of the grid is the same size.

Your image should look something like:
Code:
1234567890!" '
*()-.,:/ABCDEF
GHIJKLMNOPQRST
UVWXYZabcdefgh
ijklmnopqrstuv
wxyzАБВГДЕЁЖЗИ
ЙКЛМНОПРСТУФХЦ
ЧШЩЪЫЬЭЮЯабвгд
еёжзийклмнопрс
туфхцчшщъыьэюя

Make sure the background is transparent. Use 8-bit PNG format for best compatibility across devices.

Note that I've left a space (between the " and ' on the top row). You can have separate code later to handle the space as a special condition, but this is easier.

2: Defining the Font Parameters
A string holds a list of characters, in the order that they appear in the image. Use unicode escapes for non-ASCII characters, or someone in another country (with a different character encoding) will get different results.

This information should really be loaded from some kind of font definition file, but for this example, they'll go in the code.
Code:
private static int CELL_WIDTH = 12;
private static int CELL_HEIGHT = 16;

private static String sequence = "1234567890!\" '*()-.,:/"
+ "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+ "abcdefghijklmnopqrstuvwxyz"
+ "\u0410\u0411\u0412\u0413\u0414\u0415\u0401\u0416"
+ "\u0417\u0418\u0419\u041A\u041B\u041C\u041D\u041E"
+ "\u041F\u0420\u0421\u0422\u0423\u0424\u0425\u0426"
+ "\u0427\u0428\u0429\u042A\u042B\u042C\u042D\u042E"
+ "\u042F\u0430\u0431\u0432\u0433\u0434\u0435\u0451"
+ "\u0436\u0437\u0438\u0439\u043A\u043B\u043C\u043D"
+ "\u043E\u043F\u0440\u0441\u0442\u0443\u0444\u0445"
+ "\u0446\u0447\u0448\u0449\u044A\u044B\u044C\u044D\u044E\u044F";

private static Image fontImage;
private static int width;
private static int height;
private static int charsPerRow;

public static void inialise(String fontname) throws IOException {
fontImage = Image.createImage(fontname);
width = fontimage.getWidth();
height = fontimage.getHeight();
charsPerRow = width / CELL_WIDTH;
}

Above concept wont work for Indian languages and CJK, because of different character width. So please form a png grid and have a width of each characters in a separate array to cut the images.

3. Drawing a Character

Using setClip(), you can draw any character you like.

I've made this code throw an exception if the characters is not in the font, so you know quickly if you have a missing character. For a production build, you might prefer to draw some place-holder character instead.
Code:
/** @return width of the character */
private static int drawChar(Graphics g, char ch, int x, int y) {
// find the position in the font
int i = sequence.indexOf(ch);
if (i == -1) {
throw new IllegalArgumentException("unsupported character");
}

// find that character in the image
int cx = (i % charsPerRow) * CELL_WIDTH;
int cy = (i / charsPerRow) * CELL_HEIGHT;

// draw it
g.setClip(x, y, CELL_WIDTH, CELL_HEIGHT);
g.drawImage(fontimage, x - cx, y - cy, Graphics.TOP | Graphics.LEFT);

return CELL_WIDTH;
}

4. Drawing a String

Once you can draw a character, you can draw a string.
Code:
private static void drawString(Graphics g, String s, int x, int y) {
// this is faster than using s.charAt()
char[] chs = s.toCharArray();
for (int i = 0; i < chs.length; i++) {
x += drawChar(g, chs[i], x, y);
}
}
5. Improvements

This, of course, will only handle a fixed-width font. Support a proportional-width font is just a matter of adding an array of character widths. The last line of drawChar() then becomes:
Code:
return characterWidth[i];
This implementation also changes the current clip region, which is different behaviour from the API implementation of Graphics.drawString().

Saving the clip region is a simple matter of:
Code:
int clipX = g.getClipX();
int clipY = g.getClipY();
int clipW = g.getClipWidth();
int clipH = g.getClipHeight();
And restoring it:
Code:
g.setClip(clipX, clipY, clipW, clipH);

Above improvements help to bring Indian languages Font like Hindi, Tamil, Telugu, Malayalam, Gujarati, Bengali etc

Thanks.

Thirukural On Blackberry App Store

Mobileveda has launched the Thirukural application with all 1330 Tamil couplets with their meanings organized in 133 chapters for all Blackberry Models.

The application is yet another tribute from MobileVeda to Tamil Language and it's people.The application has easy chapter navigation and GOTO kural option.

The application is light and comes with configurable display options.

Download and cherish the Rhymes of all time worth Thirukural.

To Download the Thirukural on BlackBerry, go to Blackberry App store.

Also check out

http://appworld.blackberry.com/webstore/content/18238?lang=en

ckeck out this video



Thanks.

custom font library for j2me

MvFont Library supports custom font support.

http://abbasmca.blogspot.com/2010/11/mvfont-library-for-indian-language-in.html

MvFont Library for Indian Language in j2me canvas and LWUIT

MvFont library is a bitmap font library to display Indian languages in j2me mobiles. Developer can use this library and develope application in regional Language.

As of now MvFont library supports Hindi, Marathi, Tamil, Telugu, Malayalam, Gujarathi and Bengali.

This library can used with canvas based application , third party j2me UI libraries like LWUIT,J4ME ect and Also we can easily embed it with propraitry UI library very easily.