Matrix conversion OpenGL ES 2.0 - matrix

Question

I would like to know how I can use this matrix in my custom GL renderer to implement pinch zoom. I keep getting an error that is telling me I cannot set an opengl.Matrix which is type float[16] with the Matrix object I am changing in my activity below. What is the correct way to pass my graphics.matrix through such that it will update my view correctly? As a workaround I am passing the newDist value to my renderer, but then every time I touch the screen with 2 fingers, it resets the eyeZ value, so I think I really need to get this matrix to work so it holds my zoom values.
#Override public boolean onTouch(View v, MotionEvent event) {
switch (event.getAction() & MotionEvent.ACTION_MASK) {
case MotionEvent.ACTION_DOWN:
savedMatrix.set(matrix);
start.set(event.getX(), event.getY());
Log.d(TAG, "mode=DRAG");
break;
case MotionEvent.ACTION_POINTER_DOWN:
oldDist = spacing(event);
Log.d(TAG, "oldDist=" + oldDist);
if (oldDist > 10f) {
savedMatrix.set(matrix);
midPoint(mid, event);
mode = ZOOM;
Log.d(TAG, "mode=ZOOM");
}
break;
case MotionEvent.ACTION_UP:
case MotionEvent.ACTION_POINTER_UP:
mode = NONE;
Log.d(TAG, "mode=NONE");
break;
case MotionEvent.ACTION_MOVE:
if (mode == ZOOM) {
final float newDist = spacing(event);
Log.d(TAG, "newDist=" + newDist);
if (newDist > 10f) {
matrix.set(savedMatrix);
float scale = newDist / oldDist;
matrix.postScale(scale, scale, mid.x, mid.y);
mGLSurfaceView.queueEvent(new Runnable() {
#Override
public void run() {
mGLSurfaceView.setMyMatrix(newDist);
Log.d(TAG, "runnable exists");
}
});
}
}
break;
}
return true; // indicate event was handled
}