java - 转换 Java 代码以解决 Android 问题？

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我在制作一些与android studio一起使用的java代码时遇到了麻烦，我遇到的主要问题是将键盘输入转换为用户的滑动和按下，这是我当前的键盘输入代码:

class TAdapter extends KeyAdapter {
        public void keyPressed(KeyEvent e) {

            if (!isStarted || curPiece.getShape() == foodShapes.NoShape) {
                return;
            }

            int keycode = e.getKeyCode();

            if (keycode == 'p' || keycode == 'P') {
                pause();
                return;
            }

            if (isPaused)
                return;

            switch (keycode) {
                case KeyEvent.VK_LEFT:
                    tryMove(curPiece, curX - 1, curY);
                    break;
                case KeyEvent.VK_RIGHT:
                    tryMove(curPiece, curX + 1, curY);
                    break;
                case KeyEvent.VK_DOWN:
                    tryMove(curPiece.rotateRight(), curX, curY);
                    break;
                case KeyEvent.VK_UP:
                    tryMove(curPiece.rotateLeft(), curX, curY);
                    break;
                case KeyEvent.VK_SPACE:
                    dropDown();
                    break;
                case 'd':
                    oneLineDown();
                    break;
                case 'D':
                    oneLineDown();
                    break;
            }

如有任何帮助，我们将不胜感激，谢谢。

Answer 1

This页面可在 android 文档和教程中找到....

public class MainActivity extends Activity {
...
// This example shows an Activity, but you would use the same approach if
// you were subclassing a View.
@Override
public boolean onTouchEvent(MotionEvent event){ 

    int action = MotionEventCompat.getActionMasked(event);

    switch(action) {
        case (MotionEvent.ACTION_DOWN) :
            Log.d(DEBUG_TAG,"Action was DOWN");
            return true;
        case (MotionEvent.ACTION_MOVE) :
            Log.d(DEBUG_TAG,"Action was MOVE");
            return true;
        case (MotionEvent.ACTION_UP) :
            Log.d(DEBUG_TAG,"Action was UP");
            return true;
        case (MotionEvent.ACTION_CANCEL) :
            Log.d(DEBUG_TAG,"Action was CANCEL");
            return true;
        case (MotionEvent.ACTION_OUTSIDE) :
            Log.d(DEBUG_TAG,"Movement occurred outside bounds " +
                    "of current screen element");
            return true;      
        default : 
            return super.onTouchEvent(event);
    }      
}

但是，我建议您使用 Google将来，在寻求有关堆栈溢出的帮助之前。所附链接通过 Google 在“android - detect input gestures within your app”结果的第一页上找到。另外，我相信我遇到了一个与此直接相关的问题，并且已经得到了完整的回答。

请记住； Stack Overflow 不在这里是为了让你偷懒，它在这里是为了让你可以在实际需要时寻求帮助..