I am working in a map project in android. It contains larger image of 10000x10000 resolution. Using this image with Bitmap it gives OutOfMemoryError
as per Dave's recommendation, you can split the image into 1600 parts of 250x250px each. Photoshop does this easily in less than a minute (here). You don't have to worry about writing the html yourself too. Once you have the html (lets call it bigimage.html) and the images folder, place both these in your assets folder and access them this way -
setContentView(webView);
try {
webView.loadUrl("file:///android_asset/bigimage.html";
webView.getSettings().setLoadsImagesAutomatically(true);
} catch (Exception e) {
e.printStackTrace();
}