Java OnSwipeTouchListener不适用于按钮对象的GridView？

免责声明：我知道这篇文章可能比其他文章要长，但我真的找不到任何有帮助的文章（欢迎推荐链接！），我也找不到任何其他方法来解决这个问题。。。也就是说，如果你能帮助我，我将不胜感激，因为我已经在这个问题上纠缠了很长一段时间

对于GridView（Linear Layout-vertical）中的字符串值数组，我实现了OnSwipeTouchListener类，用于在每个方向上滑动，当相应的Toast消息弹出时，它在整个屏幕上工作

以下绿色圆圈显示整个屏幕准确输出每个滑动方向的Toast消息：

但为什么我在GridView中对按钮对象数组（为了给每个字符串值应用背景）进行同样的尝试时，它只对布局的底部精确

以下红色圆圈表示滑动方向仅为向上或空对象，因为这是不准确的一面，而绿色圆圈表示相反，因为屏幕底部三分之一处的每个滑动方向都是准确的：

至于我的Java代码，以下是我的主要活动：

package dpark.sample;

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.GridView;
import android.widget.Toast;
import java.util.ArrayList;

public class MainActivity extends AppCompatActivity {
    private int height, width;
    private String[] list;
    private GridView grid;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        height = 6;
        width = 6;

        grid = (GridView)findViewById(R.id.gridview);
        grid.setNumColumns(width);

        buildList();

        display();

        //*** COMMENTED OUT AS THE FOLLOWING STATEMENTS ARE USED FOR JUST STRING VALUES ***
        /*ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,
            android.R.layout.simple_list_item_1, list);
        grid.setAdapter(adapter);*/

        grid.setOnTouchListener(new OnSwipeTouchListener(MainActivity.this) {
            public void onSwipeTop() {
                 Toast.makeText(MainActivity.this, "top", Toast.LENGTH_SHORT).show();
            }

            public void onSwipeRight() {
                Toast.makeText(MainActivity.this, "right", Toast.LENGTH_SHORT).show();
            }

            public void onSwipeLeft() {
                Toast.makeText(MainActivity.this, "left", Toast.LENGTH_SHORT).show();
            }

            public void onSwipeBottom() {
                Toast.makeText(MainActivity.this, "bottom", Toast.LENGTH_SHORT).show();
            }

        });
    }

    private void buildList() {
        int tempIncrementor = 1;
        int dimensions = height * width;
        list = new String[dimensions];

        for (int i = 0; i < dimensions; i++) {
            list[i] = String.valueOf(tempIncrementor);
            tempIncrementor++;
         }
    }

    private void display() {
        Button cb = null;
        ArrayList<Button> mButtons = new ArrayList<Button>();

        for (int i =0; i < list.length; i++) {
            cb = new Button(this);
            cb.setText(list[i]);
            cb.setBackgroundResource(R.drawable.brownblock);
            mButtons.add(cb);
        }

        grid.setAdapter(new CustomAdapter(mButtons));
    }

哦，下面是XML代码：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent">

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textSize="16sp"
        android:textStyle="bold"
        android:layout_gravity="center"
        android:layout_margin="12dip"
        android:text="GridView of Buttons Swipe Demo"/>

    <GridView
        android:id="@+id/gridview"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:focusable="true"
        android:focusableInTouchMode="true"
        android:numColumns="auto_fit"
        android:verticalSpacing="10dp"
        android:horizontalSpacing="10dp"
        android:columnWidth="90dp"
        android:stretchMode="columnWidth"
        android:gravity="center"
        android:layout_gravity="center"/>

</LinearLayout>

。。。所有这些都说明了，我有没有办法将滑动触摸界面应用于按钮对象的网格视图，更不用说整个屏幕布局了

再次感谢你

package dpark.puzzle_15;

import android.content.Context;
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;

    public OnSwipeTouchListener (Context ctx){
        gestureDetector = new GestureDetector(ctx, new GestureListener());
    }

    @Override
    public boolean onTouch(View v, 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 true;
        }

        @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();
                        } else {
                            onSwipeLeft();
                        }
                    }
                    result = true;
                }
                else if (Math.abs(diffY) > SWIPE_THRESHOLD && Math.abs(velocityY) > SWIPE_VELOCITY_THRESHOLD) {
                    if (diffY > 0) {
                        onSwipeBottom();
                    } else {
                        onSwipeTop();
                    }
                }
                result = true;

            } catch (Exception exception) {
                exception.printStackTrace();
            }
            return result;
        }
    }

    public void onSwipeRight() {
    }

    public void onSwipeLeft() {
    }

    public void onSwipeTop() {
    }

    public void onSwipeBottom() {
    }
}

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent">

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textSize="16sp"
        android:textStyle="bold"
        android:layout_gravity="center"
        android:layout_margin="12dip"
        android:text="GridView of Buttons Swipe Demo"/>

    <GridView
        android:id="@+id/gridview"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:focusable="true"
        android:focusableInTouchMode="true"
        android:numColumns="auto_fit"
        android:verticalSpacing="10dp"
        android:horizontalSpacing="10dp"
        android:columnWidth="90dp"
        android:stretchMode="columnWidth"
        android:gravity="center"
        android:layout_gravity="center"/>

</LinearLayout>