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POsend message from Mapview.draw to activity
 

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    <p>I want to get the screen center when the map finally stops moving after a fling. I notice that there is no standard SDK event for this. I have seen a few techniques such as <a href="https://stackoverflow.com/questions/1773717/android-maps-how-to-determine-map-center-after-a-drag-has-been-completed">override MapView.onTouchEvent</a>, or start a repeating timer on ACTION_UP and wait for end of map movement.</p> <p>I am looking at overriding MapView.draw :-</p> <pre><code>@Override public void draw(Canvas canvas) { super.draw(canvas); Log.e(TAG, "draw"); center = this.getMapCenter(); //(GeoPoint) if (centerSave != null){ if (centerSave.equals(center)){ Log.e(TAG, "map stopped moving"); // Now what goes here????? } } centerSave = center; } </code></pre> <p>This "fling end" detection is a bit simpler then the others I have seen but it does maybe load the CPU a bit more since it runs on every draw.</p> <p>I now want to send some kind of message/event to my MapActivity saying that the map has stopped moving. The MapActivity will then put a pushpin at the map center.</p> <p>How do I send this message?</p> <p>It is not messageing between threads, but between 2 different classes. There is probably a simple technique but the trick is to know it.</p> <p>Thanks for any help</p> <p>Peter</p> <p>EDIT: I am using a handler to send a message to the UI thread. Unfortunately it is not solving the fling issue, (but it is an improvement).</p> <pre><code>// Now what goes here???? Message m = Message.obtain(); m.what = MyApplication.HANDLE_DRAW_TO; MyApplication.tabbedMapActivityHandler.dispatchMessage(m); </code></pre>
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