invalidation

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Do I need to use an invalidate call and if so where?

I have an activity which shows a view, within the view there is a canvas which is draw, then I have an ontouch function which should allow the canvas to be dragged/zoomed. However when debugging it ap[详细]

2023-03-24 18:05 分类：问答
Android : click / touch event not working after canvas translate

I have a FrameLayout that contains several ImageView. On the main activity, I record the touch events in order to move my FrameLayout and the images inside with the finger (drag).[详细]

2023-03-23 21:51 分类：问答
Multithreaded Core Data - NSManagedObject invalidated

As the title suggests im working with a Core Data Application which gets filled with objects in different background threads (XML Parsing)[详细]

2023-03-23 14:11 分类：问答
memcached invalidation based on values

Is it possible to invalidate memcahced entries based on va开发者_开发百科lues. In my app, I am assigning user in different groups and I store this mapping in memcached.[详细]

2023-03-23 06:29 分类：问答
Android wait for UI thread to invalidate

I am having problems redrawing the view in a painting app. When the touch ends, I call touch_up() to make the path, invalidate() to draw it, and storeView() to push the current view on the stack. Howe[详细]

2023-03-22 12:29 分类：问答
How to update Android Views upon modifications?

I have some methods in my View that modify some of the shapes that are drawn when called. In Java in order to make sure the component is updated I would call repaint(). Is there something that will ma[详细]

2023-03-22 01:13 分类：问答
Invalidate and release an NSTimer when popping a view (with a UINavigationController)

I\'m using an UINavigationController: in my first view there is an UIButton which pushes another view using this code[详细]

2023-03-20 05:56 分类：问答
Strange problem with [tableView reloadData]

Let have two mutable arrays, and let\'s have the following code: - (void)viewDidLoad { NSMutableArray *A = [[NSMutableArray alloc] init];[详细]

2023-03-15 16:54 分类：问答
Drawing Multiple rectangles without calling invalidate()

I\'m trying to draw multiple rectangles. I want to be able to draw each rectangle by hand though. I can draw one but then once I call invalidate(), of course, the canvas gets cleared.[详细]

2023-03-11 10:32 分类：问答
JSF remove invalid component from page

i\'m using JSF 1.2 with IceFaces 1.8. On my page i got an selectOneListbox, wh开发者_如何转开发ich content (e.g. EQUAL TO, BETWEEN, IN) triggers inputText fields to be rendered. If EQUAL TO is choose[详细]

2023-03-11 08:30 分类：问答