MainActivity
コードでこれ。
public class OnSwipeTouchListener_imp extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_on_swipe_touch_listener);
ImageView view = (ImageView)findViewById(R.id.view);
view.setOnTouchListener(new OnSwipeTouchListener(OnSwipeTouchListener_imp.this)
{
@Override
public void onClick()
{
super.onClick(); // your on click here
Toast.makeText(getApplicationContext(),"onClick",Toast.LENGTH_SHORT).show();
}
@Override
public void onDoubleClick()
{
super.onDoubleClick(); // your on onDoubleClick here
}
@Override
public void onLongClick()
{
super.onLongClick(); // your on onLongClick here
}
@Override
public void onSwipeUp() {
super.onSwipeUp(); // your swipe up here
}
@Override
public void onSwipeDown() {
super.onSwipeDown(); // your swipe down here.
}
@Override
public void onSwipeLeft() {
super.onSwipeLeft(); // your swipe left here.
Toast.makeText(getApplicationContext(),"onSwipeLeft",Toast.LENGTH_SHORT).show();
}
@Override
public void onSwipeRight() {
super.onSwipeRight(); // your swipe right here.
Toast.makeText(getApplicationContext(),"onSwipeRight",Toast.LENGTH_SHORT).show();
}
});
}
}
次に、OnSwipeTouchListener
Java クラスを作成します。
public class OnSwipeTouchListener implements View.OnTouchListener {
private GestureDetector gestureDetector;
public OnSwipeTouchListener(Context c) {
gestureDetector = new GestureDetector(c, new GestureListener());
}
public boolean onTouch(final View view, final MotionEvent motionEvent) {
return gestureDetector.onTouchEvent(motionEvent);
}
private final class GestureListener extends GestureDetector.SimpleOnGestureListener {
private static final int SWIPE_THRESHOLD = 100;
private static final int SWIPE_VELOCITY_THRESHOLD = 100;
@Override
public boolean onDown(MotionEvent e) {
return true;
}
@Override
public boolean onSingleTapUp(MotionEvent e) {
onClick();
return super.onSingleTapUp(e);
}
@Override
public boolean onDoubleTap(MotionEvent e) {
onDoubleClick();
return super.onDoubleTap(e);
}
@Override
public void onLongPress(MotionEvent e) {
onLongClick();
super.onLongPress(e);
}
// Determines the fling velocity and then fires the appropriate swipe event accordingly
@Override
public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) {
boolean result = false;
try {
float diffY = e2.getY() - e1.getY();
float diffX = e2.getX() - e1.getX();
if (Math.abs(diffX) > Math.abs(diffY)) {
if (Math.abs(diffX) > SWIPE_THRESHOLD && Math.abs(velocityX) > SWIPE_VELOCITY_THRESHOLD)
{
if (diffX > 0)
{
onSwipeRight(); // Right swipe
} else {
onSwipeLeft(); // Left swipe
}
}
} else {
if (Math.abs(diffY) > SWIPE_THRESHOLD && Math.abs(velocityY) > SWIPE_VELOCITY_THRESHOLD) {
if (diffY > 0) {
onSwipeDown(); // Down swipe
} else {
onSwipeUp(); // Up swipe
}
}
}
} catch (Exception exception) {
exception.printStackTrace();
}
return result;
}
}
public void onSwipeRight() {
}
public void onSwipeLeft() {
}
public void onSwipeUp() {
}
public void onSwipeDown() {
}
public void onClick() {
}
public void onDoubleClick() {
}
public void onLongClick() {
}
}
これがあなたを照らしてくれることを願っています:)