ho fatto in due modi:..
tocco ascoltatore Impostare l'ascoltatore in contatto per la vista mappa Ogni volta che l'utente solleva il dito (o si muove, o atterra), è possibile ricaricare.
mapView.setOnTouchListener(new OnTouchListener() {
public boolean onTouch(View v, MotionEvent event) {
switch (event.getAction()) {
case MotionEvent.ACTION_UP:
// The user took their finger off the map,
// they probably just moved it to a new place.
break;
case MotionEvent.ACTION_MOVE:
// The user is probably moving the map.
break;
}
// Return false so that the map still moves.
return false;
}
});
Override onLayout. Ogni volta che la carta si sposta, onLayout viene chiamato. Se si estende la classe MapView, è possibile ignorare onLayout per catturare questi eventi. Ho impostato un timer qui per vedere se il movem ent si era fermato.
public class ExtendedMapView extends MapView {
private static final long STOP_TIMER_DELAY = 1500; // 1.5 seconds
private ScheduledThreadPoolExecutor mExecutor;
private OnMoveListener mOnMoveListener;
private Future mStoppedMovingFuture;
/**
* Creates a new extended map view.
* Make sure to override the other constructors if you plan to use them.
*/
public ExtendedMapView(Context context, AttributeSet attrs) {
super(context, attrs);
mExecutor = new ScheduledThreadPoolExecutor(1);
}
public interface OnMoveListener {
/**
* Notifies that the map has moved.
* If the map is moving, this will be called frequently, so don't spend
* too much time in this function. If the stopped variable is true,
* then the map has stopped moving. This may be useful if you want to
* refresh the map when the map moves, but not with every little movement.
*
* @param mapView the map that moved
* @param center the new center of the map
* @param stopped true if the map is no longer moving
*/
public void onMove(MapView mapView, GeoPoint center, boolean stopped);
}
@Override
protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
super.onLayout(changed, left, top, right, bottom);
if (mOnMoveListener != null) {
// Inform the listener that the map has moved.
mOnMoveListener.onMove(this, getMapCenter(), false);
// We also want to notify the listener when the map stops moving.
// Every time the map moves, reset the timer. If the timer ever completes,
// then we know that the map has stopped moving.
if (mStoppedMovingFuture != null) {
mStoppedMovingFuture.cancel(false);
}
mStoppedMovingFuture = mExecutor.schedule(onMoveStop, STOP_TIMER_DELAY,
TimeUnit.MILLISECONDS);
}
}
/**
* This is run when we have stopped moving the map.
*/
private Runnable onMoveStop = new Runnable() {
public void run() {
if (mOnMoveListener != null) {
mOnMoveListener.onMove(ExtendedMapView.this, getMapCenter(), true);
}
}
};
}
È possibile utilizzare il timer anche nel metodo di ascolto touch. Questo era solo un esempio. Spero che aiuti!
sprecato così tanto tempo su this.None delle opere di metodo. il downvote è necessario. – Nezam