package org.las2mile.scrcpy;

import android.annotation.SuppressLint;
import android.app.Activity;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.ServiceConnection;
import android.content.pm.ActivityInfo;
import android.content.res.AssetManager;
import android.hardware.Sensor;
import android.hardware.SensorEvent;
import android.hardware.SensorEventListener;
import android.hardware.SensorManager;
import android.os.Bundle;
import android.os.IBinder;
import android.os.SystemClock;
import android.util.Base64;
import android.util.DisplayMetrics;
import android.util.Log;
import android.view.Display;
import android.view.Surface;
import android.view.SurfaceView;
import android.view.View;
import android.view.ViewConfiguration;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.LinearLayout;
import android.widget.Spinner;
import android.widget.Switch;
import android.widget.Toast;
import java.io.IOException;
import java.io.InputStream;
import java.net.Inet4Address;
import java.net.Inet6Address;
import java.net.InetAddress;
import java.net.NetworkInterface;
import java.net.SocketException;
import java.util.Enumeration;

import android.app.ProgressDialog;
import android.os.Handler;
import android.os.Message;
import org.las2mile.okio.message.BaseMsg;
import org.las2mile.okio.message.resp.HartBeatMsgResp;
import org.las2mile.okio.message.resp.LogFileEndMsgResp;
import org.las2mile.okio.message.resp.LogFileMsgResp;
import android.widget.TextView;
import java.util.Set;
import com.tbruyelle.rxpermissions3.RxPermissions;
import androidx.fragment.app.FragmentActivity;
import android.Manifest;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.net.Uri;
import android.provider.Settings;
import android.graphics.Color;
import org.las2mile.okio.utils.ZipUtils;


public class MainActivity extends FragmentActivity implements Scrcpy.ServiceCallbacks, SensorEventListener {
    private static final String PREFERENCE_KEY = "default";
    private static final String PREFERENCE_SPINNER_RESOLUTION = "spinner_resolution";
    private static final String PREFERENCE_SPINNER_BITRATE = "spinner_bitrate";
    private static int screenWidth;
    private static int screenHeight;
    private static boolean landscape = false;
    private static boolean first_time = true;
    private static boolean result_of_Rotation = false;
    private static boolean serviceBound = false;
    private static boolean nav = false;
    SensorManager sensorManager;
    private SendCommands sendCommands;
    private int videoBitrate;
    private String local_ip;
    private Context context;
    private String serverAdr = null;
    private String serverPort = null;
    private SurfaceView surfaceView;
    private Surface surface;
    private Scrcpy scrcpy;
    private long timestamp = 0;
    private byte[] fileBase64;
    private static float remote_device_width;
    private static float remote_device_height;
    private LinearLayout linearLayout;
    private static boolean no_control = false;

    private RxPermissions rxPermissions;
    ProgressDialog mainProgressDialog = null;
    static final int ADB_CONNECT_START = 1;
    static final int ADB_CONNECT_REAL_START = 2;
    static final int ADB_CONNECT_SUC = 3;
    static final int ADB_CONNECT_FAIL = 4;
    static final int ADB_CONNECT_FAIL_HIDE = 5;
    static final int SERVER_ENV_PREPARED = 6;
    static final int GOT_REMOTE_VERSION = 7;
    static final int GOT_REMOTE_LOG_PROCEDURE = 8;
    static final int GOT_REMOTE_LOG_PROCEDURE_END = 9;
    static final int GOT_REMOTE_LOG_PROCEDURE_START = 10;

    Handler mainHandler = new Handler(new Handler.Callback() {
        @Override
        public boolean handleMessage(Message message) {
            int what = message.what;
            Log.e("scrcpy",mainHandler+" Asset ADB_CONNECT_SUC "+what);
            if(what == ADB_CONNECT_START){
                showProgress();
                mainHandler.sendEmptyMessageDelayed(ADB_CONNECT_REAL_START,500);
            } else if(what == ADB_CONNECT_REAL_START){
                sendCommands.SendAdbCommands(context, fileBase64, serverAdr, Integer.parseInt(serverPort), local_ip, videoBitrate, Math.max(screenHeight, screenWidth));   
            } else if(what == ADB_CONNECT_SUC){
                setProgressMsg("与公司设备连接成功，正在初始化公司设备...");
            } else if(what == ADB_CONNECT_FAIL){
                setProgressMsg("与公司设备连接失败, 请确认IP与端口是否正确，再次点击重连。");
                mainHandler.sendEmptyMessageDelayed(ADB_CONNECT_FAIL_HIDE,2000);
            } else if(what == ADB_CONNECT_FAIL_HIDE){
                hideProgress();
            }  else if(what == SERVER_ENV_PREPARED){
                setProgressMsg("公司设备初始化完成，即将投屏...");
                // hideProgress();
                start_screen_copy_magic();
            } else if(what == GOT_REMOTE_VERSION){
                hideProgress();
                HartBeatMsgResp hartBeatMsgResp = (HartBeatMsgResp)message.obj;
                Toast.makeText(context, hartBeatMsgResp.remoteInfo, Toast.LENGTH_SHORT).show();
                TextView tv_remote_device_info = findViewById(R.id.tv_remote_device_info);
                String remoteVer = String.format(getResources().getString(R.string.str_remote_dev_info),hartBeatMsgResp.remoteInfo);
                tv_remote_device_info.setText(remoteVer);
            } else if(what == GOT_REMOTE_LOG_PROCEDURE){
                String str_save_log_to_local  = (String)message.obj;
                TextView tv_save_log_to_local = findViewById(R.id.tv_save_log_to_local);
                tv_save_log_to_local.setText(str_save_log_to_local);
            } else if (what == GOT_REMOTE_LOG_PROCEDURE_END){
                Boolean ok = (Boolean)message.obj;
                String str_remote_log_dlst = String.format(getResources().getString(R.string.str_remote_log_dlst),ok ? "成功":"失败");
                TextView tv_remote_log_dlst = findViewById(R.id.tv_remote_log_dlst);
                tv_remote_log_dlst.setTextColor(ok ? Color.BLUE : Color.RED);
                tv_remote_log_dlst.setText(str_remote_log_dlst);
            } else if (what == GOT_REMOTE_LOG_PROCEDURE_START){
                TextView tv_remote_log_dlst = findViewById(R.id.tv_remote_log_dlst);
                tv_remote_log_dlst.setTextColor(Color.GRAY);
                String str_remote_log_dlst = String.format(getResources().getString(R.string.str_remote_log_dlst),"下载中");
                tv_remote_log_dlst.setText(str_remote_log_dlst);
            }
            return false;
        }
    });

    private void initDownloadBtn(){
        final Button btn_dl_status = findViewById(R.id.btn_dl_status);
        btn_dl_status.setOnClickListener(v -> {
            Message msg = new Message();
            msg.what = GOT_REMOTE_LOG_PROCEDURE_START;
            mainHandler.sendMessage(msg);
            scrcpy.downloadLog();
        });
        final Button btn_dl_imgs = findViewById(R.id.btn_dl_imgs);
        btn_dl_imgs.setOnClickListener(v -> {
            Message msg = new Message();
            msg.what = GOT_REMOTE_LOG_PROCEDURE_START;
            mainHandler.sendMessage(msg);
            scrcpy.downloadPics();
        });
    }

    private final ServiceConnection serviceConnection = new ServiceConnection() {
        @Override
        public void onServiceConnected(ComponentName componentName, IBinder iBinder) {
            scrcpy = ((Scrcpy.MyServiceBinder) iBinder).getService();
            scrcpy.setServiceCallbacks(MainActivity.this);
            serviceBound = true;
           if (first_time) {
                scrcpy.start(surface, serverAdr, screenHeight, screenWidth);
               int count = 100;
               while (count!=0 && !scrcpy.check_socket_connection()){
                   count --;
                   try {
                       Thread.sleep(100);
                   } catch (InterruptedException e) {
                       e.printStackTrace();
                   }
               }
               if (count == 0){
                   if (serviceBound) {
                       scrcpy.StopService();
                       unbindService(serviceConnection);
                       serviceBound = false;
                       scrcpy_main();
                   }
                   Toast.makeText(context, "Connection Timed out", Toast.LENGTH_SHORT).show();
               }else{
               int[] rem_res = scrcpy.get_remote_device_resolution();
               remote_device_height = rem_res[1];
               remote_device_width = rem_res[0];
               first_time = false;
               }
            } else {
                scrcpy.setParms(surface, screenWidth, screenHeight);
            }
            set_display_nd_touch();
        }

        @Override
        public void onServiceDisconnected(ComponentName componentName) {
            serviceBound = false;
        }
    };

    public MainActivity() {
    }
    @SuppressLint("SourceLockedOrientationActivity")
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        rxPermissions = new RxPermissions(this);
        rxPermissions
        .request(Manifest.permission.WRITE_EXTERNAL_STORAGE,Manifest.permission.INTERNET,Manifest.permission.ACCESS_WIFI_STATE)
        .subscribe(granted -> {
            if (granted) {
                Log.e("scrcpy","所有权限都被授予");
                //performActionRequiringPermissions();
            } else {
                Log.e("scrcpy","至少一个权限被拒绝");
                showPermissionDeniedDialog();
            }
        });

        if (first_time) {
            scrcpy_main();
        } else {
            this.context = this;
            start_screen_copy_magic();
        }
        sensorManager = (SensorManager) this.getSystemService(SENSOR_SERVICE);
        Sensor proximity;
        proximity = sensorManager.getDefaultSensor(Sensor.TYPE_PROXIMITY);
        sensorManager.registerListener(this, proximity, SensorManager.SENSOR_DELAY_NORMAL);

    }

    @Override
    public void onOkIoMsg(BaseMsg baseMsg){
        if(baseMsg instanceof LogFileMsgResp){
            LogFileMsgResp logFileMsgResp = (LogFileMsgResp)baseMsg;
            String sizeFmt = ZipUtils.formetFileSize(logFileMsgResp.fileSize);
            String percentStr = logFileMsgResp.writenPercent+"%";//Math.round((logFileMsgResp.pktNo+1)*1.0f/logFileMsgResp.pktNums * 100)+"%";
            String str_save_log_to_local = String.format(getResources().getString(R.string.str_save_log_to_local),logFileMsgResp.zipPath,sizeFmt,percentStr);
            Message msg = new Message();
            msg.what = GOT_REMOTE_LOG_PROCEDURE;
            msg.obj = str_save_log_to_local;
            mainHandler.sendMessage(msg);
        } else if(baseMsg instanceof HartBeatMsgResp){
            Message msg = new Message();
            msg.what = GOT_REMOTE_VERSION;
            msg.obj = baseMsg;
            mainHandler.sendMessage(msg);
        } else if(baseMsg instanceof LogFileEndMsgResp){
            LogFileEndMsgResp logFileEndMsgResp = (LogFileEndMsgResp)baseMsg;
            Message msg = new Message();
            msg.what = GOT_REMOTE_LOG_PROCEDURE_END;
            msg.obj = logFileEndMsgResp.allDownloaded;
            mainHandler.sendMessage(msg);
        }
        
    }

    private void showProgress(){
        Log.e("scrcpy","Asset showProgress");
        mainProgressDialog = new ProgressDialog(context);
        mainProgressDialog.setTitle("提示");
        mainProgressDialog.setMessage("正在连接公司设备..."); 
        mainProgressDialog.setProgressStyle(ProgressDialog.STYLE_SPINNER);
        mainProgressDialog.setIndeterminate(true);
        mainProgressDialog.setCancelable(false);
        mainProgressDialog.setCanceledOnTouchOutside(false);
        mainProgressDialog.show();
    }

    private void setProgressMsg(String msg){
        mainProgressDialog.setMessage(msg);
    }

    private void hideProgress(){
        if(mainProgressDialog.isShowing()){
            mainProgressDialog.dismiss();
        }
    }

    @SuppressLint("SourceLockedOrientationActivity")
    public void scrcpy_main(){
        setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
        setContentView(R.layout.activity_main);
        final Button startButton = findViewById(R.id.button_start);
        AssetManager assetManager = getAssets();
        try {
            InputStream input_Stream = assetManager.open("scrcpy-server.jar");
            byte[] buffer = new byte[input_Stream.available()];
            input_Stream.read(buffer);
            fileBase64 = Base64.encode(buffer, 2);
        } catch (IOException e) {
            Log.e("Asset Manager", e.getMessage());
        }
        sendCommands = new SendCommands(mainHandler);

        startButton.setOnClickListener(v -> {
            local_ip = wifiIpAddress();
            getAttributes();
            if (!serverAdr.isEmpty()) {
                //原生逻辑
                // if (sendCommands.SendAdbCommands(context, fileBase64, serverAdr, Integer.parseInt(serverPort), local_ip, videoBitrate, Math.max(screenHeight, screenWidth)) == 0) {
                //     start_screen_copy_magic();
                // } else {
                //     Toast.makeText(context, "Network OR ADB connection failed", Toast.LENGTH_SHORT).show();
                // }

                //开始与adbd建立连接
                if(first_time){
                    mainHandler.sendEmptyMessage(ADB_CONNECT_START);
                }
            } else {
                Toast.makeText(context, "Server Address Empty", Toast.LENGTH_SHORT).show();
            }
        });
        get_saved_preferences();
    }


    public void get_saved_preferences(){
        this.context = this;
        final EditText editTextServerHost = findViewById(R.id.editText_server_host);
        final Switch aSwitch0 = findViewById(R.id.switch0);
        final Switch aSwitch1 = findViewById(R.id.switch1);
	final EditText editTextServerPort = findViewById(R.id.editText_server_port);
        editTextServerHost.setText(context.getSharedPreferences(PREFERENCE_KEY, 0).getString("Server Address", ""));
	editTextServerPort.setText(context.getSharedPreferences(PREFERENCE_KEY, 0).getString("Server Port", ""));
        aSwitch0.setChecked(context.getSharedPreferences(PREFERENCE_KEY, 0).getBoolean("No Control", false));
        aSwitch1.setChecked(context.getSharedPreferences(PREFERENCE_KEY, 0).getBoolean("Nav Switch", false));
        setSpinner(R.array.options_resolution_keys, R.id.spinner_video_resolution, PREFERENCE_SPINNER_RESOLUTION);
        setSpinner(R.array.options_bitrate_keys, R.id.spinner_video_bitrate, PREFERENCE_SPINNER_BITRATE);
        if(aSwitch0.isChecked()){
            aSwitch1.setVisibility(View.GONE);
        }

        aSwitch0.setOnClickListener(v -> {
            if(aSwitch0.isChecked()){
                aSwitch1.setVisibility(View.GONE);
            }else{
                aSwitch1.setVisibility(View.VISIBLE);
            }
        });
    }

    @SuppressLint("ClickableViewAccessibility")
    public void set_display_nd_touch() {
        DisplayMetrics metrics = new DisplayMetrics();
        if (ViewConfiguration.get(context).hasPermanentMenuKey()) {
            getWindowManager().getDefaultDisplay().getMetrics(metrics);
        } else {
            final Display display = getWindowManager().getDefaultDisplay();
            display.getRealMetrics(metrics);
        }
        float this_dev_height = metrics.heightPixels;
        float this_dev_width = metrics.widthPixels;
        if (nav && !no_control){
            if (landscape){
                this_dev_width = this_dev_width - 96;
            }else {                                                 //100 is the height of nav bar but need multiples of 8.
                this_dev_height = this_dev_height - 96;
            }
        }
        float remote_device_aspect_ratio = remote_device_height/remote_device_width;

        //改变渲染的边距
        if (!landscape) {                                                            //Portrait
            float this_device_aspect_ratio = this_dev_height/this_dev_width;
            if (remote_device_aspect_ratio > this_device_aspect_ratio) {
                linearLayout.setPadding((int) (((remote_device_aspect_ratio - this_device_aspect_ratio)*this_dev_width)/2),0,(int) (((remote_device_aspect_ratio - this_device_aspect_ratio)*this_dev_width)/2),0);
            } else if (remote_device_aspect_ratio < this_device_aspect_ratio) {
                linearLayout.setPadding(0,(int) (((this_device_aspect_ratio - remote_device_aspect_ratio)*this_dev_width)),0,0);
            }

        }else{                                                                        //Landscape
            float this_device_aspect_ratio = this_dev_width/this_dev_height;
            if (remote_device_aspect_ratio > this_device_aspect_ratio) {
                linearLayout.setPadding(0,(int) (((remote_device_aspect_ratio - this_device_aspect_ratio)*this_dev_height)/2),0,(int) (((remote_device_aspect_ratio - this_device_aspect_ratio)*this_dev_height)/2));
            } else if (remote_device_aspect_ratio < this_device_aspect_ratio) {
                linearLayout.setPadding(((int) (((this_device_aspect_ratio - remote_device_aspect_ratio)*this_dev_height))/2),0,((int) (((this_device_aspect_ratio - remote_device_aspect_ratio)*this_dev_height))/2),0);
            }

        }
        if (!no_control) {
            surfaceView.setOnTouchListener((v, event) -> scrcpy.touchevent(event, surfaceView.getWidth(), surfaceView.getHeight()));
        }

        if (nav && !no_control) {
            final Button backButton = findViewById(R.id.back_button);
            final Button homeButton = findViewById(R.id.home_button);
            final Button appswitchButton = findViewById(R.id.appswitch_button);

            backButton.setOnClickListener(v -> scrcpy.sendKeyevent(4));

            homeButton.setOnClickListener(v -> scrcpy.sendKeyevent(3));

            appswitchButton.setOnClickListener(v -> scrcpy.sendKeyevent(187));
        }
        }

    private void setSpinner(final int textArrayOptionResId, final int textViewResId, final String preferenceId) {

        final Spinner spinner = findViewById(textViewResId);
        ArrayAdapter<CharSequence> arrayAdapter = ArrayAdapter.createFromResource(this, textArrayOptionResId, android.R.layout.simple_spinner_item);
        arrayAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
        spinner.setAdapter(arrayAdapter);
        spinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
            @Override
            public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
                context.getSharedPreferences(PREFERENCE_KEY, 0).edit().putInt(preferenceId, position).apply();
            }

            @Override
            public void onNothingSelected(AdapterView<?> parent) {
                context.getSharedPreferences(PREFERENCE_KEY, 0).edit().putInt(preferenceId, 0).apply();
            }
        });
        spinner.setSelection(context.getSharedPreferences(PREFERENCE_KEY, 0).getInt(preferenceId, 0));
    }

    private void getAttributes() {

        final EditText editTextServerHost = findViewById(R.id.editText_server_host);
        serverAdr = editTextServerHost.getText().toString();
	final EditText editTextServerPort = findViewById(R.id.editText_server_port);
        serverPort = editTextServerPort.getText().toString();
	context.getSharedPreferences(PREFERENCE_KEY, 0).edit().putString("Server Port", serverPort).apply();
        context.getSharedPreferences(PREFERENCE_KEY, 0).edit().putString("Server Address", serverAdr).apply();
        final Spinner videoResolutionSpinner = findViewById(R.id.spinner_video_resolution);
        final Spinner videoBitrateSpinner = findViewById(R.id.spinner_video_bitrate);
        final Switch a_Switch0 = findViewById(R.id.switch0);
        no_control = a_Switch0.isChecked();
        final Switch a_Switch1 = findViewById(R.id.switch1);
        nav = a_Switch1.isChecked();
        context.getSharedPreferences(PREFERENCE_KEY, 0).edit().putBoolean("No Control", no_control).apply();
        context.getSharedPreferences(PREFERENCE_KEY, 0).edit().putBoolean("Nav Switch", nav).apply();

        final String[] videoResolutions = getResources().getStringArray(R.array.options_resolution_values)[videoResolutionSpinner.getSelectedItemPosition()].split(",");
            screenHeight = Integer.parseInt(videoResolutions[0]);
            screenWidth = Integer.parseInt(videoResolutions[1]);
            videoBitrate = getResources().getIntArray(R.array.options_bitrate_values)[videoBitrateSpinner.getSelectedItemPosition()];
    }


    private void swapDimensions() {
        int temp = screenHeight;
        screenHeight = screenWidth;
        screenWidth = temp;
    }

    @SuppressLint("ClickableViewAccessibility")
    private void start_screen_copy_magic() {
       Log.e("Scrcpy: ","Starting scrcpy service");
            setContentView(R.layout.surface);//开始渲染
            final View decorView = getWindow().getDecorView();
            decorView.setSystemUiVisibility(
                    View.SYSTEM_UI_FLAG_LAYOUT_STABLE
                            | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
                            | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
                            | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
                            | View.SYSTEM_UI_FLAG_FULLSCREEN
                            | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY);
            surfaceView = findViewById(R.id.decoder_surface);
            surface = surfaceView.getHolder().getSurface();
        final LinearLayout nav_bar = findViewById(R.id.nav_button_bar);
        if(nav && !no_control) {
            nav_bar.setVisibility(LinearLayout.VISIBLE);
        }else {
            nav_bar.setVisibility(LinearLayout.GONE);
        }
            linearLayout = findViewById(R.id.container1);
            start_Scrcpy_service();
            initDownloadBtn();//loadNewRotation  屏幕旋转需要重新初始化
    }


    protected String wifiIpAddress() {
//https://stackoverflow.com/questions/6064510/how-to-get-ip-address-of-the-device-from-code
        try {
            InetAddress ipv4 = null;
            InetAddress ipv6 = null;
            for (Enumeration<NetworkInterface> en = NetworkInterface
                    .getNetworkInterfaces(); en.hasMoreElements(); ) {
                NetworkInterface int_f = en.nextElement();
                for (Enumeration<InetAddress> enumIpAddr = int_f
                        .getInetAddresses(); enumIpAddr.hasMoreElements(); ) {
                    InetAddress inetAddress = enumIpAddr.nextElement();
                    if (inetAddress instanceof Inet6Address) {
                        ipv6 = inetAddress;
                        continue;
                    }
                    if (inetAddress.isLoopbackAddress() && inetAddress instanceof Inet4Address) {
                        ipv4 = inetAddress;
                        continue;
                    }
                    return inetAddress.getHostAddress();
                }
            }
            if (ipv6 != null) {
                return ipv6.getHostAddress();
            }
            if (ipv4 != null) {
                return ipv4.getHostAddress();
            }
            return null;
        } catch (SocketException ex) {
            ex.printStackTrace();
        }
        return null;
    }


    private void start_Scrcpy_service() {
        Intent intent = new Intent(this, Scrcpy.class);
        startService(intent);
        bindService(intent, serviceConnection, Context.BIND_AUTO_CREATE);
    }

    @SuppressLint("SourceLockedOrientationActivity")
    @Override
    public void loadNewRotation() {
        Log.e("Scrcpy: ","loadNewRotation "+first_time);
        if (first_time){
            int[] rem_res = scrcpy.get_remote_device_resolution();
            remote_device_height = rem_res[1];
            remote_device_width = rem_res[0];
            first_time = false;
        }
        unbindService(serviceConnection);
        serviceBound = false;
        result_of_Rotation = true;
        landscape = !landscape;
        swapDimensions();
        if (landscape) {
            setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
        } else {
            setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
        }
    }

    @Override
    protected void onPause() {
        super.onPause();
        if (serviceBound) {
            scrcpy.pause();
        }
    }

    @Override
    protected void onResume() {
        super.onResume();
        if (!first_time && !result_of_Rotation) {
            final View decorView = getWindow().getDecorView();
            decorView.setSystemUiVisibility(
                    View.SYSTEM_UI_FLAG_LAYOUT_STABLE
                            | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
                            | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
                            | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
                            | View.SYSTEM_UI_FLAG_FULLSCREEN
                            | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY);
            if (serviceBound) {
                linearLayout = findViewById(R.id.container1);
                scrcpy.resume();
            }
        }
        result_of_Rotation = false;
    }

    @Override
    public void onBackPressed() {
        if (timestamp == 0) {
            timestamp = SystemClock.uptimeMillis();
            Toast.makeText(context, "Press again to exit", Toast.LENGTH_SHORT).show();
        } else {
            long now = SystemClock.uptimeMillis();
            if (now < timestamp + 1000) {
                timestamp = 0;
                if (serviceBound) {
                    scrcpy.StopService();
                    unbindService(serviceConnection);
                }
                android.os.Process.killProcess(android.os.Process.myPid());
                System.exit(1);
            }
            timestamp = 0;
        }
    }

    @Override
    public void onSensorChanged(SensorEvent sensorEvent) {
        if (sensorEvent.sensor.getType() == Sensor.TYPE_PROXIMITY) {
            if (sensorEvent.values[0] == 0) {
                if (serviceBound) {
                    scrcpy.sendKeyevent(28);
                }
            } else {
                if (serviceBound) {
                    scrcpy.sendKeyevent(29);
                }
            }
        }
    }

    @Override
    public void onAccuracyChanged(Sensor sensor, int i) {

    }

    private void showPermissionDeniedDialog(){
        AlertDialog.Builder builder =  new AlertDialog.Builder(this);
        builder.setMessage("请前往设置界面打开SD卡读写权限");
        builder.setPositiveButton("去设置", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialogInterface, int i) {
                Intent intent =  new Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS, Uri.parse("package:"+getPackageName()));
                intent.addCategory(Intent.CATEGORY_DEFAULT);
                intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                startActivity(intent);
            }
        });
        builder.setNegativeButton("取消",new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialogInterface, int i) {
                finish();
            }
        });
        builder.show();
    }

}