onFling イベントをリッスンするためにジェスチャ検出器を既に使用しているビューにボタンがある場合、長押しイベントをリッスンするようにボタンを設定するにはどうすればよいですか?
参考までにコードを追加しました。アクティビティに複数のリスナーを実装する方法を説明してください。また、単一のビューに対して複数のリスナーを実装できますか? 1 つは長押しリスナーで、もう 1 つはオンフリング リスナーです。
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
this.requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.knowledge);
summary =(TextView)findViewById(R.id.textSummary);
buckview = (View) findViewById(R.id.bucketView);
ball = (View)findViewById(R.id.meatBall);
gestureDetector = new GestureDetector(new MyGestureDetector());
View mainview = (View) findViewById(R.id.mainView);
/*
//Set touch release listener for bucket view
mainview.setOnTouchListener(new View.OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
// TODO Auto-generated method stub
if (event.getAction() == MotionEvent.ACTION_UP)
{
buckview.setVisibility(RelativeLayout.GONE);
}
return false;
}
});
*/
// Set the touch listener for the main view to be our custom gesture listener
mainview.setOnTouchListener(new View.OnTouchListener() {
public boolean onTouch(View v, MotionEvent event) {
if (gestureDetector.onTouchEvent(event)) {
return true;
}
return false;
}
});
ball.setOnLongClickListener(new View.OnLongClickListener() {
@Override
public boolean onLongClick(View v) {
// TODO Auto-generated method stub
buckview.setVisibility(ImageView.VISIBLE);
return false;
}
});
ball.setOnTouchListener(new View.OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
// TODO Auto-generated method stub
if(event.getAction()==MotionEvent.ACTION_UP)
{
buckview.setVisibility(ImageView.GONE);
return false;
}
else
return true;
}
});
}
class MyGestureDetector extends SimpleOnGestureListener {
public void onShowPress(MotionEvent event){
}
@Override
public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) {
Intent intent = new Intent(Knowledge.this.getBaseContext(), Knowledge.class);
/* If only horizontal allowed
if (Math.abs(e1.getY() - e2.getY()) > SWIPE_MAX_OFF_PATH) {
return false;
}
*/
// right to left swipe
if(e1.getX() - e2.getX() > SWIPE_MIN_DISTANCE && Math.abs(velocityX) > SWIPE_THRESHOLD_VELOCITY) {
startActivity(intent);
Knowledge.this.overridePendingTransition(
R.anim.slide_in_right,
R.anim.slide_out_left
);
return false;// left to right swipe
} else if (e2.getX() - e1.getX() > SWIPE_MIN_DISTANCE && Math.abs(velocityX) > SWIPE_THRESHOLD_VELOCITY) {
startActivity(intent);
Knowledge.this.overridePendingTransition(
R.anim.slide_in_left,
R.anim.slide_out_right
);
return false;// top to bottom swipe
} else if(e1.getY() - e2.getY() > SWIPE_MIN_DISTANCE && Math.abs(velocityY) > SWIPE_THRESHOLD_VELOCITY) {
startActivity(intent);
Knowledge.this.overridePendingTransition(
R.anim.slide_in_top,
R.anim.slide_out_bottom
);
return false;// bottom to top swipe
} else if (e2.getY() - e1.getY() > SWIPE_MIN_DISTANCE && Math.abs(velocityY) > SWIPE_THRESHOLD_VELOCITY) {
startActivity(intent);
Knowledge.this.overridePendingTransition(
R.anim.slide_in_bottom,
R.anim.slide_out_top
);
return false;
}else
return true;
}
// It is necessary to return true from onDown for the onFling event to register
@Override
public boolean onDown(MotionEvent event) {
return true;
}
}
}