Example of scrolling an Android ImageView by tilting the phone, similar to Facebook Paper.
The main logic is in onSensorChanged:
@Override
public void onSensorChanged(SensorEvent event) {
float value = event.values[1];
value = value*100;
smoothedValue = smooth(value, smoothedValue);
value = smoothedValue;
int scrollX = mImageView.getScrollX();
if (scrollX + value >= mMaxScroll) value = mMaxScroll - scrollX;
if (scrollX + value <= -mMaxScroll) value = -mMaxScroll - scrollX;
mImageView.scrollBy((int) value, 0);
}Smoothing is applied to the raw sensor values to filter small changes. Image bounds are checked to ensure the image is not scrolled past the edges.
Thanks to Romain Guy for the Golden Gate image.
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