cocos2d-x android加速度监听导致崩溃问题

因为需要用到手机摇一摇的功能，所以需要监听加速度变化，并把变化传到上层(LUA)。在CCLayer添加LUA回调函数，在didAccelerate里面调用CCScriptEngineManager，调用LUA注册函数。问题出现，在win32和IOS上运作正常，在android上回调一会就会崩溃，如果不回调LUA HANDLER则

没问题，应该是android的某些问题导致lua内存错误。

解决方法：修改Cocos2dxAccelerometer.java里面的onSensorChanged函数，修改回调C++部分，

@Override
public void onSensorChanged(final SensorEvent pSensorEvent) {
if (pSensorEvent.sensor.getType() != Sensor.TYPE_ACCELEROMETER) {
return;
}

float x = pSensorEvent.values[0];
float y = pSensorEvent.values[1];
final float z = pSensorEvent.values[2];

/*
* Because the axes are not swapped when the device's screen orientation
* changes. So we should swap it here. In tablets such as Motorola Xoom,
* the default orientation is landscape, so should consider this.
*/
final int orientation = this.mContext.getResources().getConfiguration().orientation;

if ((orientation == Configuration.ORIENTATION_LANDSCAPE) && (this.mNaturalOrientation != Surface.ROTATION_0)) {
final float tmp = x;
x = -y;
y = tmp;
} else if ((orientation == Configuration.ORIENTATION_PORTRAIT) && (this.mNaturalOrientation != Surface.ROTATION_0)) {
final float tmp = x;
x = y;
y = -tmp;
}

final float tx = x;
final float ty = y;
Cocos2dxActivity activity = (Cocos2dxActivity)Cocos2dxActivity.singleAcitivy;
activity.runOnGLThread(new Runnable() {
public void run() {
Cocos2dxAccelerometer.onSensorChanged(tx, ty, z, pSensorEvent.timestamp);
}
});

/*
if(BuildConfig.DEBUG) {
Log.d(TAG, "x = " + pSensorEvent.values[0] + " y = " + pSensorEvent.values[1] + " z = " + pSensorEvent.values[2]);
}
*/
}

是andoird多线程调用引起的问题，要传到C++的主线程。

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