ChatHeadService for Flutter platform channel

ChatHeadService.java

package com.korakotlee.korspeed;

import android.app.Service;
import android.content.Intent;
import android.graphics.PixelFormat;
import android.os.IBinder;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.MotionEvent;
import android.view.View;
import android.view.WindowManager;
import android.widget.ImageView;
import android.widget.TextView;
import android.os.Bundle;
import android.util.Log;

@SuppressWarnings("deprecation")

public class ChatHeadService extends Service {

  private WindowManager mWindowManager;
  private View mChatHeadView;
  private String message = "init";

  public ChatHeadService() {
  }

  @Override
  public IBinder onBind(Intent intent) {
    return null;
  }

  @Override
  public int onStartCommand(Intent intent, int flags, int startId) {
  // public void onStart(Intent intent, int startId) {
    // super.onStart(intent, startId);
    Bundle extras = intent.getExtras();
  
    // message = "onStart";
    if(extras == null) {
      // Log.d("Service","null");
    } else {
      // Log.d("Service","not null");
      message = (String) extras.get("message");
      // Log.d("Service","message: "+message);
      // if(from.equalsIgnoreCase("Main"))
      //     StartListenLocation();
    }
    final WindowManager.LayoutParams params = new WindowManager.LayoutParams(
    WindowManager.LayoutParams.WRAP_CONTENT,
    WindowManager.LayoutParams.WRAP_CONTENT,
    WindowManager.LayoutParams.TYPE_PHONE,
    WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE,
    PixelFormat.TRANSLUCENT);
    params.gravity = Gravity.TOP | Gravity.LEFT;        //Initially view will be added to top-left corner
    params.x = 0;
    params.y = 100;

    //Add the view to the window
    mWindowManager = (WindowManager) getSystemService(WINDOW_SERVICE);
    mWindowManager.addView(mChatHeadView, params);

    //Set the close button.
    // ImageView closeButton = (ImageView) mChatHeadView.findViewById(R.id.close_btn);
    // closeButton.setOnClickListener(new View.OnClickListener() {
    //     @Override
    //     public void onClick(View v) {
    //         //close the service and remove the chat head from the window
    //         stopSelf();
    //     }
    // });

    final TextView textView = (TextView) mChatHeadView.findViewById(R.id.label);
    textView.setText( message);
    textView.setOnTouchListener(new View.OnTouchListener() {
    // chatHeadImage.setOnTouchListener(new View.OnTouchListener() {
      private int lastAction;
      private int initialX;
      private int initialY;
      private float initialTouchX;
      private float initialTouchY;
      private long startTime;
      private long duration;
      private int clickCount;
      private static final long MAX_DURATION = 500;

      @Override
      public boolean onTouch(View v, MotionEvent event) {
        switch (event.getAction()) {
          case MotionEvent.ACTION_DOWN:

            //remember the initial position.
            initialX = params.x;
            initialY = params.y;

            //get the touch location
            initialTouchX = event.getRawX();
            initialTouchY = event.getRawY();

            lastAction = event.getAction();

            // detect Double Tap
            startTime = System.currentTimeMillis();
            clickCount++;

            return true;
          case MotionEvent.ACTION_UP:
            //As we implemented on touch listener with ACTION_MOVE,
            //we have to check if the previous action was ACTION_DOWN
            //to identify if the user clicked the view or not.
            if (lastAction == MotionEvent.ACTION_DOWN) {
            // Single Tap - > Change Unit

              //close the service and remove the chat heads
              // stopSelf();
            }
            lastAction = event.getAction();

            // detect Double Tap
            long time = System.currentTimeMillis() - startTime;
            duration=  duration + time;
            if(clickCount == 2)
            {
              if(duration<= MAX_DURATION)
              {
                stopSelf();
                // Toast.makeText(captureActivity.this, "double tap",Toast.LENGTH_LONG).show();
              }
              clickCount = 0;
              duration = 0;
              break;             
            }

            return true;
          case MotionEvent.ACTION_MOVE:
            //Calculate the X and Y coordinates of the view.
            params.x = initialX + (int) (event.getRawX() - initialTouchX);
            params.y = initialY + (int) (event.getRawY() - initialTouchY);

            //Update the layout with new X & Y coordinate
            mWindowManager.updateViewLayout(mChatHeadView, params);
            lastAction = event.getAction();
            return true;
        }
        return false;
      }
    });
    return START_NOT_STICKY;
  }

  @Override
  public void onCreate() {
    super.onCreate();
    //Inflate the chat head layout we created
    mChatHeadView = LayoutInflater.from(this).inflate(R.layout.chat_head, null);
  }

  @Override
  public void onDestroy() {
    super.onDestroy();
    if (mChatHeadView != null) mWindowManager.removeView(mChatHeadView);
  }
}