package com.wpc.library.service;

import android.annotation.SuppressLint;
import android.app.Service;
import android.content.Intent;
import android.graphics.PixelFormat;
import android.os.Build;
import android.os.IBinder;
import androidx.annotation.Nullable;
import android.util.Log;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.MotionEvent;
import android.view.View;
import android.view.WindowManager;
import android.widget.FrameLayout;
import android.widget.ImageButton;
import android.widget.Toast;

import com.wpc.lcjianlibrary.R;

public class FloatViewService extends Service {
    private static final String TAG = "FloatViewService";
    //定义浮动窗口布局
    private FrameLayout mFloatLayout;
    private WindowManager.LayoutParams wmParams;
    //创建浮动窗口设置布局参数的对象
    private WindowManager mWindowManager;

    private ImageButton mFloatView;

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

    @Override
    public void onCreate() {
        super.onCreate();
        LayoutInflater inflater = LayoutInflater.from(getApplication());
        //获取浮动窗口视图所在布局
        mFloatLayout = (FrameLayout) inflater.inflate(R.layout.test_alert_window_menu, null);
        createFloatView();
    }

    @SuppressWarnings("static-access")
    @SuppressLint("InflateParams")
    private void createFloatView() {
        Log.e("service", "创建悬浮");
        wmParams = new WindowManager.LayoutParams();
        //通过getApplication获取的是WindowManagerImpl.CompatModeWrapper
        mWindowManager = (WindowManager) getApplication().getSystemService(getApplication().WINDOW_SERVICE);
        //设置window type
        if (Build.VERSION.SDK_INT >= 26) {//8.0新特性
            wmParams.type = WindowManager.LayoutParams.TYPE_APPLICATION_OVERLAY;
        } else {
            wmParams.type = WindowManager.LayoutParams.TYPE_SYSTEM_ALERT;
        }
        //设置图片格式，效果为背景透明
        wmParams.format = PixelFormat.RGBA_8888;
        //设置浮动窗口不可聚焦（实现操作除浮动窗口外的其他可见窗口的操作）
        wmParams.flags = WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE;
        //调整悬浮窗显示的停靠位置为左侧置顶
        wmParams.gravity = Gravity.LEFT | Gravity.TOP;
        // 以屏幕左上角为原点，设置x、y初始值，相对于gravity
        wmParams.x = 100;
        wmParams.y = 152;

        //设置悬浮窗口长宽数据
        wmParams.width = WindowManager.LayoutParams.WRAP_CONTENT;
        wmParams.height = WindowManager.LayoutParams.WRAP_CONTENT;

        //添加mFloatLayout
        mWindowManager.addView(mFloatLayout, wmParams);
        //浮动窗口按钮
        mFloatView = mFloatLayout.findViewById(R.id.alert_window_imagebtn);

        mFloatLayout.measure(View.MeasureSpec.makeMeasureSpec(0,
                View.MeasureSpec.UNSPECIFIED), View.MeasureSpec
                .makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED));
        //设置监听浮动窗口的触摸移动
        mFloatView.setOnTouchListener(new View.OnTouchListener() {
            boolean isClick;
            @SuppressLint("ClickableViewAccessibility")
            @Override
            public boolean onTouch(View v, MotionEvent event) {
                switch (event.getAction()) {
                    case MotionEvent.ACTION_DOWN:
//                        mFloatView.setBackgroundResource(R.drawable.ic_ab_app);
                        isClick = false;
                        break;
                    case MotionEvent.ACTION_MOVE:
                        isClick = true;
                        // getRawX是触摸位置相对于屏幕的坐标，getX是相对于按钮的坐标
                        wmParams.x = (int) event.getRawX();
                        // 减25为状态栏的高度
                        wmParams.y = (int) event.getRawY()
                                - mFloatView.getMeasuredHeight() / 2 - 75 ;
                        // 刷新
                        mWindowManager.updateViewLayout(mFloatLayout, wmParams);
                        return true;
                    case MotionEvent.ACTION_UP:
//                        mFloatView.setBackgroundResource(R.drawable.ic_ab_app);
                        return isClick;// 此处返回false则属于移动事件，返回true则释放事件，可以出发点击否。
                    default:
                        break;
                }
                return false;
            }
        });

        mFloatView.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View v) {
                Toast.makeText(FloatViewService.this, "一百块都不给我！", Toast.LENGTH_SHORT).show();
            }
        });
    }

    @Override
    public void onDestroy() {
        super.onDestroy();
        if (mFloatLayout != null) {
            //移除悬浮窗口
            mWindowManager.removeView(mFloatLayout);
        }
    }

}