MpPreview/app/src/main/java/com/xypower/mppreview/MainActivity.java

package com.xypower.mppreview;

import static java.lang.System.loadLibrary;

import androidx.activity.result.ActivityResult;
import androidx.activity.result.ActivityResultCallback;
import androidx.activity.result.ActivityResultLauncher;
import androidx.activity.result.contract.ActivityResultContracts;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.app.ActivityCompat;
import androidx.recyclerview.widget.GridLayoutManager;

import android.Manifest;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.hardware.camera2.CameraAccessException;
import android.hardware.camera2.CameraManager;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.AdapterView;
import android.widget.Button;
import android.widget.Toast;

import com.xypower.mppreview.adapter.ItemAdapter;
import com.xypower.mppreview.interfaces.OnItemClickListener;
import com.xypower.mppreview.ui.CameraActivity;
import com.xypower.mppreview.ui.CameraChannelActivity;
import com.xypower.mppreview.utils.PhotoUtil;
import com.xypower.mppreview.bean.Contants;
import com.xypower.mppreview.utils.CameraUtils;

import java.io.File;
import java.util.ArrayList;

public class MainActivity extends AppCompatActivity implements View.OnClickListener, AdapterView.OnItemSelectedListener, OnItemClickListener {

    static {
        loadLibrary("mppreview");
    }

    private static int MY_PERMISSIONS_REQUEST_FOREGROUND_SERVICE = 100;

    public static int ExposureComp = 0;
    private Button systakepic;
    private Button hdrtakepic;
    private ActivityResultLauncher<Intent> photoResultLauncher;
    private int picsize = 0;
    private com.xypower.mppreview.databinding.ActivityMainBinding viewBinding;
    private int numberOfCameras;


    protected native void test();

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        viewBinding = com.xypower.mppreview.databinding.ActivityMainBinding.inflate(getLayoutInflater());
        setContentView(viewBinding.getRoot());
        initView();
        initActivityResult();


        String[] accessPermissions = new String[]{Manifest.permission.CAMERA, Manifest.permission.WRITE_EXTERNAL_STORAGE, Manifest.permission.FOREGROUND_SERVICE, Manifest.permission.READ_PHONE_STATE,
                /*Manifest.permission.PACKAGE_USAGE_STATS,*/
                /*Manifest.permission.SET_TIME,*/};
        boolean needRequire = false;
        for (String access : accessPermissions) {
            int curPermission = ActivityCompat.checkSelfPermission(MainActivity.this, access);
            if (curPermission != PackageManager.PERMISSION_GRANTED) {
                needRequire = true;
                break;
            }
        }
        if (needRequire) {
            ActivityCompat.requestPermissions(MainActivity.this, accessPermissions, MY_PERMISSIONS_REQUEST_FOREGROUND_SERVICE);
            // return;
        }

        File file = this.getFilesDir();

        String path = "/sdcard/com.xypower.mppreview/";
        file = new File(path);
        if (!file.exists()) {
            file.mkdirs();
        }

        new Thread(new Runnable() {
            @Override
            public void run() {
                test();
            }
        }).start();
    }

    private void initView() {
        viewBinding.hdrtakepic.setOnClickListener(this);
        viewBinding.systakepic.setOnClickListener(this);
        viewBinding.spinner.setOnItemSelectedListener(this);
//        viewBinding.channel1.setOnClickListener(this);
//        viewBinding.channel2.setOnClickListener(this);
//        viewBinding.channel3.setOnClickListener(this);
//        viewBinding.channel4.setOnClickListener(this);
//        viewBinding.channel5.setOnClickListener(this);
//        viewBinding.channel6.setOnClickListener(this);
        numberOfCameras = CameraUtils.getNumberOfCameras(this);
        ItemAdapter itemAdapter = new ItemAdapter(numberOfCameras);
        itemAdapter.setOnClickListener(this);
        viewBinding.recyclerView.setAdapter(itemAdapter);
        viewBinding.recyclerView.setLayoutManager(new GridLayoutManager(this,3));


    }

    private void initActivityResult() {
        photoResultLauncher = registerForActivityResult(new ActivityResultContracts.StartActivityForResult(), new ActivityResultCallback<ActivityResult>() {
            @Override
            public void onActivityResult(ActivityResult result) {

            }
        });
    }

    @Override
    protected void onResume() {
        super.onResume();
//        if (OpenCVLoader.initDebug()) {
//            Log.d("dfsdfd", "成功");
//        } else {
//            Log.d("dfsdfd", "失败");
//        }
    }

    private void restartFragment() {
        getSupportFragmentManager().beginTransaction().replace(R.id.container, Camera2RawFragment.newInstance()).commit();
    }

    private void doFocus() {
        Camera2RawFragment fragment = (Camera2RawFragment) getSupportFragmentManager().findFragmentById(R.id.container);
        fragment.doFocus();
    }

    private void takePicture() {
        Camera2RawFragment fragment = (Camera2RawFragment) getSupportFragmentManager().findFragmentById(R.id.container);
        fragment.takePicture();
    }

    @Override
    public void onClick(View view) {
        int id = view.getId();
        switch (id) {
            case R.id.hdrtakepic:
                Intent intent = new Intent(this, CameraActivity.class);
                intent.putExtra(Contants.HDRNUM, picsize);
                startActivity(intent);
                break;
            case R.id.systakepic:
                PhotoUtil.openCamera(this, photoResultLauncher);
                break;
//            case R.id.channel1:
//                openChannelActivity(0);
//                break;
//            case R.id.channel2:
//                openChannelActivity(1);
//                break;
//            case R.id.channel3:
//                openChannelActivity(2);
//                break;
//            case R.id.channel4:
//                openChannelActivity(3);
//                break;
//            case R.id.channel5:
//                openChannelActivity(4);
//                break;
//            case R.id.channel6:
//                openChannelActivity(5);
//                break;
        }

    }


    public static int getNumberOfCameras(Context context) {
        CameraManager manager = (CameraManager) context.getSystemService(Context.CAMERA_SERVICE);
        try {
            String[] cameraIds = manager.getCameraIdList();
            return cameraIds.length;
        } catch (CameraAccessException e) {
            e.printStackTrace();
            return 0; // 如果发生异常，返回0个摄像头
        }
    }

    public void openChannelActivity(int channel) {
        Intent intent = new Intent(this, CameraChannelActivity.class);
        intent.putExtra(Contants.CAMERAID, channel);
        startActivity(intent);
    }


    @Override
    public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
        picsize = position;
    }

    @Override
    public void onNothingSelected(AdapterView<?> parent) {

    }

    @Override
    public void onItemClick(View v, int position) {
        openChannelActivity(position);
    }
}