java – 如何为整个屏幕设置OnTouchListener？

请查看以下代码.我只发布代码的重要部分.

activity_game.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/fullView"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context=".Game" >

    <TextView
        android:id="@+id/numberOfQuestionsLeft"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignParentTop="true"
        android:layout_marginLeft="20dp"
        android:text="TextView" />
</RelativeLayout>

Game.java

public class Game extends Activity {



    private View fullView;

@Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_game);

        fullView = (View)findViewById(R.id.fullView);
        fullView.setOnTouchListener(imageViewSwiped);



    }


 OnTouchListener imageViewSwiped = new OnSwipeTouchListener()
    {
         public boolean onSwipeRight() 
         {
            //code removed
         }

          public boolean onSwipeLeft() 
          {
             //code removed
                return true;
          }

          public boolean onSwipeBottom()
          {
              //code removed
              return true;
          }


    };
}

OnSwipTouchListener.java

注意 – 我没有这类代码.它由另一个SO成员撰写.

  package game.Game;
    import android.view.GestureDetector;
    import android.view.GestureDetector.SimpleOnGestureListener;
    import android.view.MotionEvent;
    import android.view.View;
    import android.view.View.OnTouchListener;

    public class OnSwipeTouchListener implements OnTouchListener {

        private final GestureDetector gestureDetector = new GestureDetector(new GestureListener());

        public boolean onTouch(final View v, final MotionEvent event) {
            return gestureDetector.onTouchEvent(event);
        }

        private final class GestureListener extends SimpleOnGestureListener {

            private static final int SWIPE_THRESHOLD = 100;
            private static final int SWIPE_VELOCITY_THRESHOLD = 100;

            @Override
            public boolean onDown(MotionEvent e) {
                return super.onDown(e);
            }

            @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) {
                                result = onSwipeRight();
                            } else {
                                result = onSwipeLeft();
                            }
                        }
                    } else {
                        if (Math.abs(diffY) > SWIPE_THRESHOLD && Math.abs(velocityY) > SWIPE_VELOCITY_THRESHOLD) {
                            if (diffY > 0) {
                                result = onSwipeBottom();
                            } else {
                                result = onSwipeTop();
                            }
                        }
                    }
                } catch (Exception exception) {
                    exception.printStackTrace();
                }
                return result;
            }
        }

        public boolean onSwipeRight() {
            return false;
        }

        public boolean onSwipeLeft() {
            return false;
        }

        public boolean onSwipeTop() {
            return false;
        }

        public boolean onSwipeBottom() {
            return false;
        }
    }

现在,我正在尝试使整个活动触及启用.请查看Game.java以了解我是如何做到的.但问题是,它不会对任何触摸事件做出反应！代码OnSwipTouchListener.java没有任何问题,因为我通过将侦听器设置为图像视图来使用触摸事件.

在我尝试启用整个活动触摸时一定有问题.通过说“启用整个活动触摸”我的意思是,我需要在整个屏幕上滑动而不是将监听器添加到imageview.

我在这做错了什么？

解决方法:

根据提问者的要求,解决方案是回答这个问题ontouchlistener-doesnt-work-with-relative-layout

标签：android,ontouchlistener,java,touch,android-activity
来源： https://codeday.me/bug/20190825/1720599.html