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POAndroid testing, how to simulate multitouch (zoom in/out) using instruments?
 

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  1. POAndroid testing, how to simulate multitouch (zoom in/out) using instruments?
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    <p>I can simply simulate single touches - tap, swipe, hold etc in my tests, but completely stuck with simulating multi touch on HTС Desire with Android 2.2.</p> <p>Could you please advise, how can I reproduce events chain to test multi-touches?</p> <p>I think I need to use some tricky kind of MotionEvent like MASK or something like this, but have no idea how do this.</p> <p>I have found here a dump of events of reproduced zooming: <a href="http://www.zdnet.com/blog/burnette/how-to-use-multi-touch-in-android-2-part-3-understanding-touch-events/1775?tag=mantle_skin;content" rel="noreferrer">http://www.zdnet.com/blog/burnette/how-to-use-multi-touch-in-android-2-part-3-understanding-touch-events/1775?tag=mantle_skin;content</a></p> <pre><code> 1. event ACTION_DOWN[#0(pid 0)=135,179] 2. event ACTION_MOVE[#0(pid 0)=135,184] 3. event ACTION_MOVE[#0(pid 0)=144,205] 4. event ACTION_MOVE[#0(pid 0)=152,227] 5. event ACTION_POINTER_DOWN(pid 1)[#0(pid 0)=153,230;#1(pid 1)=380,538] 6. event ACTION_MOVE[#0(pid 0)=153,231;#1(pid 1)=380,538] 7. event ACTION_MOVE[#0(pid 0)=155,236;#1(pid 1)=364,512] 8. event ACTION_MOVE[#0(pid 0)=157,240;#1(pid 1)=350,498] 9. event ACTION_MOVE[#0(pid 0)=158,245;#1(pid 1)=343,494] 10. event ACTION_POINTER_UP(pid 0)[#0(pid 0)=158,247;#1(pid 1)=336,484] 11. event ACTION_MOVE[#0(pid 1)=334,481] 12. event ACTION_MOVE[#0(pid 1)=328,472] 13. event ACTION_UP[#0(pid 1)=327,471] </code></pre> <p>Here is my issue:</p> <ol start="5"> <li>event ACTION_POINTER_DOWN(pid 1)[#0(pid 0)=153,230;#1(pid 1)=380,538]</li> <li>event ACTION_MOVE[#0**(pid 0)=153,231**;#1**(pid 1)=380,538**]</li> </ol> <p>How can I generate events with 4 coordinates (pid 0 x0 y0 and pid 1 x1 y1)?</p> <p>Looks like I need to find the way how to use following event:</p> <p>public static MotionEvent obtain (long downTime, long eventTime, int action, int pointers, int[] pointerIds, PointerCoords[] pointerCoords, int metaState, float xPrecision, float yPrecision, int deviceId, int edgeFlags, int source, int flags)</p> <p>Thanks to Dan for reply, I have tried this logic, but still encountering problems to add coordinates:</p> <pre><code>MotionEvent event = MotionEvent.obtain(downTime, eventTime, MotionEvent.ACTION_DOWN, 135, 179, 0); inst.sendPointerSync(event); // eventTime+=100; event = MotionEvent.obtain(downTime, eventTime, MotionEvent.ACTION_MOVE, 135, 184, 0); inst.sendPointerSync(event); // eventTime+=100; int pointerToMove = 1; // pointer IDs are zero-based event = MotionEvent.obtain(downTime, eventTime, (pointerToMove &lt;&lt; MotionEvent.ACTION_POINTER_INDEX_SHIFT) + MotionEvent.ACTION_POINTER_DOWN, 138, 189, 0); inst.sendPointerSync(event); event = MotionEvent.obtain(downTime, eventTime, (pointerToMove &lt;&lt; MotionEvent.ACTION_POINTER_INDEX_SHIFT) + MotionEvent.ACTION_MOVE, 158, 220, 0); inst.sendPointerSync(event); // eventTime+=100; event = MotionEvent.obtain(downTime, eventTime, (2 * 256) + MotionEvent.ACTION_MOVE, 138, 180, 0); inst.sendPointerSync(event); // eventTime+=100; event = MotionEvent.obtain(downTime, eventTime, MotionEvent.ACTION_MOVE, 135, 184, 0); </code></pre> <p>These events sequence are caught in my test stub and dumped like:</p> <pre><code>(14368): event ACTION_DOWN[#0(pid 0)=135,179] (14368): event ACTION_MOVE[#0(pid 0)=135,184] (14368): event ACTION_POINTER_DOWN(pid 1)[#0(pid 0)=138,189] (14368): event ACTION_MOVE[#0(pid 0)=158,220] (14368): event ACTION_MOVE[#0(pid 0)=138,180] (14368): event ACTION_MOVE[#0(pid 0)=135,184] </code></pre> <p>Here you can see, that (2 * 256) + MotionEvent.ACTION_MOVE doesn't change the pointer ID for event :( And pointerToMove &lt;&lt; MotionEvent.ACTION_POINTER_INDEX_SHIFT approach is not working for ACTION_POINTER_DOWN, may be I'm not allowed to use such way for POINTER_DOWN?</p> <p>My issue is that I can't generate 2 pair of coords for Pointer 0 and Pointer 1:</p> <pre><code>(14368): event ACTION_POINTER_DOWN(pid 1)[#0(pid 0)=138,189] </code></pre> <p>Here you can see, that using your logic I have added pid1 to the event, but it is still has no coordinates, cause x and y was associated with pid 0..</p> <p>Thank you in advance.</p> <p>Yahor</p> <p>Still have no ideas how to implement it, did somebody ever send a multitouch event?</p>
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