package com.example.dengshaomin.repluginhost;

import android.content.Context;

import android.graphics.PixelFormat;

import android.support.v7.app.AppCompatActivity;

import android.os.Bundle;

import android.view.Gravity;

import android.view.MotionEvent;

import android.view.View;

import android.view.WindowManager;

import android.widget.ImageView;

import android.widget.Toast;

public class MainActivity extends AppCompatActivity {

    private WindowManager wm = null;

    private WindowManager.LayoutParams wmParams = null;

    private ImageView leftbtn = null;

    private int statusBarHeight1;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        int resourceId = getResources().getIdentifier("status_bar_height", "dimen", "android");

        if (resourceId > 0) {

            //根据资源ID获取响应的尺寸值

            statusBarHeight1 = getResources().getDimensionPixelSize(resourceId);

        }

        setContentView(R.layout.activity_main);

        initFloatView();

    }

    public void textClick(View view) {

        Toast.makeText(MainActivity.this, view.getId() + "", Toast.LENGTH_SHORT).show();

    }

    private void initFloatView() {

        //应用内悬浮窗，ondestory时记得销毁悬浮窗

        /*

        wm = (WindowManager) getSystemService(Context.WINDOW_SERVICE);

//        //设置LayoutParams(全局变量）相关参数

        wmParams = new WindowManager.LayoutParams(

                WindowManager.LayoutParams.WRAP_CONTENT,

                WindowManager.LayoutParams.WRAP_CONTENT,

                WindowManager.LayoutParams.TYPE_APPLICATION,

                WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE | WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL,

                PixelFormat.TRANSLUCENT);

*/

        ///全局悬浮按钮，会显示在其他应用和桌面上

        //获取WindowManager

        wm = (WindowManager) getApplicationContext().getSystemService(Context.WINDOW_SERVICE);

        //设置LayoutParams(全局变量）相关参数

        wmParams = new WindowManager.LayoutParams(

                WindowManager.LayoutParams.WRAP_CONTENT,

                WindowManager.LayoutParams.WRAP_CONTENT,

                WindowManager.LayoutParams.TYPE_TOAST,

                WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE | WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL,

                PixelFormat.TRANSLUCENT);

        wmParams.gravity = Gravity.LEFT | Gravity.CENTER_VERTICAL;

        //以屏幕左上角为原点，设置x、y初始值

        wmParams.x = 0;

        wmParams.y = 0;

        //设置悬浮窗口长宽数据

        wmParams.width = 200;

        wmParams.height = 200;

        createLeftFloatView();

        leftbtn.invalidate();

    }

    private void createLeftFloatView() {

        leftbtn = new ImageView(this);

        leftbtn.setImageResource(R.mipmap.ic_launcher);

        leftbtn.setAlpha(100);

        leftbtn.setOnClickListener(new View.OnClickListener() {

            @Override

            public void onClick(View v) {

                //Toast.makeText(MainActivity.this,"click",Toast.LENGTH_SHORT).show();

            }

        });

        //调整悬浮窗口

        //显示myFloatView图像

        wm.addView(leftbtn, wmParams);

        leftbtn.setOnClickListener(new View.OnClickListener() {

            @Override

            public void onClick(View v) {

                Toast.makeText(MainActivity.this, "float", Toast.LENGTH_SHORT).show();

            }

        });

        leftbtn.setOnLongClickListener(new View.OnLongClickListener() {

            @Override

            public boolean onLongClick(View v) {

                if (wm != null) {

                    wm.removeViewImmediate(leftbtn);

                }

//                Toast.makeText(MainActivity.this, "finish", Toast.LENGTH_SHORT).show();

                return true;

            }

        });

        leftbtn.setOnTouchListener(new View.OnTouchListener() {

            @Override

            public boolean onTouch(View v, MotionEvent event) {

                // 当前值以屏幕左上角为原点

                switch (event.getAction()) {

                    case MotionEvent.ACTION_DOWN:

                        mStartX = event.getRawX();

                        mStartY = event.getRawY();

                        break;

                    case MotionEvent.ACTION_MOVE:

                        wmParams.x += event.getRawX() - mStartX;

                        wmParams.y += event.getRawY() - mStartY;

                        wm.updateViewLayout(leftbtn, wmParams);

                        mStartX = event.getRawX();

                        mStartY = event.getRawY();

                        break;

                    case MotionEvent.ACTION_UP:

                        break;

                }

                // 消耗触摸事件

                return true;

            }

        });

    }

    private float mStartX, mStartY;

}