int a = Math.abs(mToX - mFromX);int b = Math.abs(mToY - mFromY);double c = Math.sqrt(a * a + b * b);

//寫在安卓APP中的起跳public class Jump {private static final String TAG = "Jump";private Context mContext;private int mFromX = 0;private int mFromY = 0;private int mToX = 0;private int mToY = 0;/** * 每毫秒的距離 */private static final double MS_DISTANCE = 0.75;private WindowManager wm;private View mIndicatorView;private View mIndicator;private WindowManager.LayoutParams params;private TextView mTv_time;public Jump(Context context) { mContext = context; init();}private void init() { wm = (WindowManager) mContext.getSystemService(Context.WINDOW_SERVICE); mIndicatorView = LayoutInflater.from(mContext).inflate(R.layout.indicator, null, false); mIndicatorView.measure(0, 0); mIndicator = mIndicatorView.findViewById(R.id.indicator); mTv_time = mIndicatorView.findViewById(R.id.tv_time); mIndicatorView.findViewById(R.id.btnForm) .setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) {  setForm(); } }); mIndicatorView.findViewById(R.id.btnTo) .setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) {  setTo(); } }); mIndicatorView.setOnTouchListener(new View.OnTouchListener() { int startX; int startY; @Override public boolean onTouch(View v, MotionEvent event) { switch (event.getAction()) { case MotionEvent.ACTION_DOWN:  startX = (int) event.getRawX();  startY = (int) event.getRawY();  break; case MotionEvent.ACTION_MOVE:  int newX = (int) event.getRawX();  int newY = (int) event.getRawY();  int dx = newX - startX;  int dy = newY - startY;  params.x += dx;  params.y += dy;  wm.updateViewLayout(mIndicatorView, params);  startX = (int) event.getRawX();  startY = (int) event.getRawY();  break; default:  break; } return true; } }); params = new WindowManager.LayoutParams(); params.height = WindowManager.LayoutParams.WRAP_CONTENT; params.width = WindowManager.LayoutParams.WRAP_CONTENT; params.flags = WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE | WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON; params.format = PixelFormat.TRANSLUCENT; params.gravity = Gravity.TOP + Gravity.LEFT; params.type = WindowManager.LayoutParams.TYPE_SYSTEM_ERROR; wm.addView(mIndicatorView, params);}public void setForm() { int[] mLocation = new int[2]; mIndicator.getLocationOnScreen(mLocation); int wOffset = mIndicator.getMeasuredWidth() / 2; int hOffset = mIndicator.getMeasuredHeight() / 2; mFromX = mLocation[0] + wOffset; mFromY = mLocation[1] + hOffset;}public void setTo() { int[] mLocation = new int[2]; mIndicator.getLocationOnScreen(mLocation); int wOffset = mIndicator.getMeasuredWidth() / 2; int hOffset = mIndicator.getMeasuredHeight() / 2; mToX = mLocation[0] + wOffset; mToY = mLocation[1] + hOffset; int a = Math.abs(mToX - mFromX); int b = Math.abs(mToY - mFromY); double c = Math.sqrt(a * a + b * b); final int time = (int) (c / MS_DISTANCE); mTv_time.setText(String.valueOf(time)); mFromX = 0; mFromY = 0; mToX = 0; mToY = 0; new Thread(new Runnable() { @Override public void run() { requestGet(time); } }).start();}private void requestGet(int time) { try { StringBuilder requestUrl = new StringBuilder("http://192.168.1.140:8080/jump/JumpTime").append("?").append("time=").append(time); // 新建一個URL對象 URL url = new URL(requestUrl.toString()); // 打開一個HttpURLConnection連接 HttpURLConnection urlConn = (HttpURLConnection) url.openConnection(); // 設(shè)置連接主機(jī)超時時間 urlConn.setConnectTimeout(5 * 1000); //設(shè)置從主機(jī)讀取數(shù)據(jù)超時 urlConn.setReadTimeout(5 * 1000); // 設(shè)置是否使用緩存 默認(rèn)是true urlConn.setUseCaches(true); // 設(shè)置為Post請求 urlConn.setRequestMethod("GET"); //urlConn設(shè)置請求頭信息 //設(shè)置請求中的媒體類型信息。 urlConn.setRequestProperty("Content-Type", "application/json"); //設(shè)置客戶端與服務(wù)連接類型 urlConn.addRequestProperty("Connection", "Keep-Alive"); // 開始連接 urlConn.connect(); // 判斷請求是否成功 if (urlConn.getResponseCode() == 200) { // 獲取返回的數(shù)據(jù) Log.e(TAG, "Get方式請求成功，result--->"); } else { Log.e(TAG, "Get方式請求失敗"); Log.e(TAG, urlConn.getResponseMessage()); } // 關(guān)閉連接 urlConn.disconnect(); } catch (Exception e) { Log.e(TAG, e.toString()); }}}

//標(biāo)靶的布局文件<FrameLayoutxmlns:android="http://schemas.android.com/apk/res/android"android:layout_width="wrap_content"android:layout_height="150dp"><RelativeLayout android:layout_width="100dp" android:layout_height="wrap_content"> <TextView android:id="@+id/tv_time" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_centerHorizontal="true"/> <RelativeLayout android:id="@+id/rl" android:layout_width="100dp" android:layout_height="100dp" android:layout_below="@id/tv_time"> <View android:layout_width="match_parent" android:layout_height="1dp" android:layout_centerVertical="true" android:background="@android:color/black"/> <View android:layout_width="1dp" android:layout_height="match_parent" android:layout_centerHorizontal="true" android:background="@android:color/black"/> <View android:id="@+id/indicator" android:layout_width="30dp" android:layout_height="30dp" android:layout_centerInParent="true" android:background="@drawable/mid"/> </RelativeLayout> <Button android:id="@+id/btnForm" android:layout_width="50dp" android:layout_height="wrap_content" android:layout_below="@id/rl" android:onClick="setForm" android:text="form" android:textSize="8sp"/> <Button android:id="@+id/btnTo" android:layout_width="50dp" android:layout_height="wrap_content" android:layout_alignParentRight="true" android:layout_below="@id/rl" android:onClick="setTo" android:text="to" android:textSize="8sp"/></RelativeLayout></FrameLayout>

//Servlet文件public class Jump extends HttpServlet {@Overrideprotected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { int time = Integer.parseInt(req.getParameter("time")); Runtime.getRuntime().exec("adb shell input swipe 100 100 100 100 " + time);}}