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Commit 9f811fd4 authored by Dake Gu's avatar Dake Gu
Browse files

SimulatdDpad: fix NPE for event without device 

Fix a rare case that We lost device(due to network issue)
and SimulatedDpad received the MotionEvent without device.

b/8121964

Change-Id: Ie2948e6ff14a84422b05dda8ea87a3571f26f252
parent 6602ade6

core/java/android/view/SimulatedDpad.java

+6 −2
Original line number Diff line number Diff line
@@ -145,6 +145,10 @@ class SimulatedDpad { 
        if (!synthesizeNewKeys) {

            mHandler.removeMessages(MSG_FLICK);

        }

        InputDevice device = event.getDevice();

        if (device == null) {

            return;

        }

        // Store what time the touchpad event occurred

        final long time = SystemClock.uptimeMillis();

        switch (event.getAction()) {
@@ -157,7 +161,7 @@ class SimulatedDpad { 
                mAccumulatedY = 0;

                mLastMoveX = 0;

                mLastMoveY = 0;

                if (event.getDevice().getMotionRange(MotionEvent.AXIS_Y).getMax()

                if (device.getMotionRange(MotionEvent.AXIS_Y).getMax()

                        * EDGE_SWIPE_THRESHOLD < event.getY()) {

                    // Did the swipe begin in a valid region

                    mEdgeSwipePossible = true;
@@ -176,7 +180,7 @@ class SimulatedDpad { 
                }

                // Checks if the swipe has crossed the midpoint

                // and if our swipe gesture is complete

                if (event.getY() < (event.getDevice().getMotionRange(MotionEvent.AXIS_Y).getMax()

                if (event.getY() < (device.getMotionRange(MotionEvent.AXIS_Y).getMax()

                        * .5) && mEdgeSwipePossible) {

                    mEdgeSwipePossible = false;