Develop Reference

Dynamically Updating Launcher Icon in Android

I am trying to put a dynamic value in the launcher icon of android, as number of messages will be displayed in the message icon. As the icon is static and initialised before the application starts, Is there any way to achieve this??

For Android Launcher Icon you can't. It is impossible. (Or by Making your own launcher) The only one thing is you have to make a Android-Widget for this purpose. Which looks like a application icon. But it will act as a widget.
Also Make a dynamic launcher icon

simple answer is you can't do it also this question says the same. But there may be advance tricky methods/ways that I'm not aware of.
But you may try and develop widgets that changes dynamically.

You have to design your icon as a selector instead of drawable. Have a look at this.

You cant update because its related to manifest.xml stuff only possible with software upgrade.

Dropdownmenu in Android(2.3.3)

I would like to build a dropdownmenu for Android 2.3.3 . But I dont know how to do that. Can somebody recommend some examples(Github etc.)? It would be very helpfull. There is a sample pictures of a Dropdownmenu below.
Thanks

I think it's part of the action bar in android 3.0 and up.
http://developer.android.com/guide/topics/ui/actionbar.html
To use it in earlier version you have to create it your self or I think you can use open source action bar. like http://actionbarsherlock.com/
You could just build a list inside a relative layout and make it invisible until you press the button.

Looks like a normal Spinner to me.
Here is an example: http://developer.android.com/resources/tutorials/views/hello-spinner.html

Create grid-style layout for Options Menu in Android 4.0.3

I've just met some troubles in Android 4.0.3 with menu because it displays menu item in a list. But I can't a way to set it displaying in a grid-like layout.
Appreciate help.

My friend, I found the main reason why you couldn't display option menu as grid-style in Android 4.0.3.
Because you used #android:style/Theme.Holo for your application.
Menu of Theme.Holo was set for displaying in list-style.
The solutions are:
1, Try to use another theme such as #android:style/Theme.Wallpaper.NoTitleBar instead of #android:style/Theme.Holo.Wallpaper.NoTitleBar
2, Or if you still want to use Theme.Holo, so try to create a style for menu in values/style.xml. References: see styles in Android Framework. (Sr, I don't have Android framework here, so I can't show you what to do exactly now)
Hope this help!

Android Dropdown List (iPhone style)

Could anyone tell me either what this widget is or how it could be recreated? I'm having to port over a iPhone app, and my boss wants me to make it look as similar as possible, but while using android controls. Here is a picture of it in Android:
http://cdn3.staztic.com/screenshots/android-swim-32-2.jpg
Thanks!

It is not a standard thing, but for this purpose, there is a: QuickAction dialog.

this can be done with a PopupWindow (it can also be shown as dropdown) where the background is a custom nine-patch file and the content is a listview (or any other view that fits your needs).

I'm sure that GreenDroid Library can do this but I don't know the name of the class to use

Implementing custom menu in android system

I am trying to find a way to customize the android menu in system level.I want to remove the existing android menu and replace the custom menu.Can any one done the replacement of default menu.Can any one help me how to do that?? or kindly share some useful links to do that.
Thanks in Advance..

Hope these links will be helpful to you,
http://www.codeproject.com/KB/android/AndroidMenusMyWay.aspx
Adding Custom Menu In Messege Activity in android
Android: customize application's menu (e.g background color)

check this:
http://developer.android.com/guide/topics/ui/menus.html
http://developer.android.com/guide/topics/resources/menu-resource.html