@Override
public boolean onTouchEvent(MotionEvent ev) {
final int action = ev.getAction();
if (action == MotionEvent.ACTION_DOWN) {
final ClipData clip = mClipping;
if (clip != null) {
final Bitmap icon = clip.getIcon();
DragShadowBuilder shadow;
if (icon != null) {
shadow =
new DragShadowBuilder(this) {
public void onProvideShadowMetrics(Point shadowSize, Point shadowTouchPoint) {
shadowSize.set(icon.getWidth(), icon.getHeight());
shadowTouchPoint.set(shadowSize.x / 2, shadowSize.y / 2);
}
public void onDrawShadow(Canvas canvas) {
canvas.drawBitmap(icon, 0, 0, new Paint());
}
};
} else {
// uhhh, what now?
shadow = new DragShadowBuilder(this);
}
startDrag(clip, shadow, null, 0);
// TODO: only discard the clipping if it was accepted
stash(null);
return true;
}
}
return false;
}
private void stash(ClipData clipping) {
mClipping = clipping;
if (mClipping != null) {
setVisibility(View.VISIBLE);
Bitmap icon = mClipping.getIcon();
// mDescription.setText(mClipping.getDescription().getLabel());
if (icon != null) {
setImageBitmap(icon);
} else {
if (mClipping.getItemCount() > 0) {
// TODO: figure out how to visualize every kind of ClipData!
// mAltText.setText(mClipping.getItemAt(0).coerceToText(getContext()));
}
}
} else {
setVisibility(View.GONE);
}
}