Android如何以编程方式创建视图

Question

I need to create a view programmatically. The controls(buttons, labels, etc.) and their positions are known only at runtime.

Here I found "Defining a Layout Programmatically": http://mobile.tutsplus.com/tutorials/android/android-layout/

but I need to be able to draw components at exact locations so LinearLayout, TableLayout etc. doesn't work for me.

How can I do this?

Answer 1

Create a custom ViewGroup ; this allows you to manage placements of each of the children you have (buttons, labels, etc) manually. Check this vid from the google IO event in 2009 titled 'Make your Android UI Fast and Efficient', specifically from about 43 minutes onward for more details.

Answer 2

I would take a look at the Lunar lander example in the android API samples here http://developer.android.com/resources/samples/LunarLander/index.html . This helped me out tremendously when starting out making games and having to dynamically draw to the screen.