although i havent used Quartz much on iphone, i think you'll get most of its functionality in the Canvas class of the android. this Class contains many methods to draw lines, circles, bitmaps, text etc. a related class is the Paint Class that allows you to specify the style of drawing - i.e. colour, stroke etc.it is not necessary to get a current context prior to drawing in Android.
for a game you'll probably need to extend the View Class and then override its onDraw method. i'd suggest you browse through the Class Index for Android and go over the documentation for these classes. the Class Index on Android is very well compiled and its a one-place reference guide for the entire platform, unlike the iphone where you have different documents for different frameworks. from a graphics point of view, the following are some "crude" analogies between the two platforms: UIViewController on iphone corresponds to (Activity + ViewGroup) on Android UIView on iphone corresponds to View on Android the drawRect method of UIView corresponds to onDraw method of the View class on Android setNeedsDisplay call on UIView is the same as invalidate() call on a View on Android on Android, the Views and Subviews dont automatically redraw (i.e. invalidate) themselves unlike their counterparts on iphone. for eg, suppose you have a game character that you display using a UIImageView on iphone. if you change the position of this object then it automatically updates the same on the screen. however on Android you will have to send an invalidate call to the View that contains this game character. unfortunately designing a screen and UI on android is nowhere as convenient as the drag and drop in Interface Builder. you'll have to specify screen layouts in XML (although it can be done in JAVA code too) using the built in XML editors on eclipse. conceptually its exactly the same as creating the xib files on IB ... the difference is that you'll have to do quite a bit of typing instead of drag and drop. hope that helps. On Sep 6, 9:51 am, Hulacir <hula...@gmail.com> wrote: > Hi, I have two Apps now in iPhone AppStore and I am thinking about > developing the Android version too. I would like to get some feedback > from those who have already done this. I am more concerned about the > 2D graphics side. On iPhone, it is Quartz. Do we have CGContext and > something similar on Android? > > thanks, > > hl --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Android Beginners" group. To post to this group, send email to android-beginners@googlegroups.com To unsubscribe from this group, send email to android-beginners-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-beginners?hl=en -~----------~----~----~----~------~----~------~--~---
