2024.5.24

p更改sos1的代码实现点击sos进入视频界面
ackage com.example.helppeople;

import android.Manifest;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.os.Bundle;
import android.os.Handler;
import android.os.Looper;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;

import androidx.annotation.NonNull;
import androidx.appcompat.app.AlertDialog;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.app.ActivityCompat;
import androidx.core.content.ContextCompat;

import com.baidu.location.BDAbstractLocationListener;
import com.baidu.location.BDLocation;
import com.baidu.location.LocationClient;
import com.baidu.location.LocationClientOption;

import org.webrtc.AudioSource;
import org.webrtc.AudioTrack;
import org.webrtc.Camera1Enumerator;
import org.webrtc.EglBase;
import org.webrtc.MediaConstraints;
import org.webrtc.PeerConnectionFactory;
import org.webrtc.SurfaceTextureHelper;
import org.webrtc.SurfaceViewRenderer;
import org.webrtc.VideoCapturer;
import org.webrtc.VideoSource;
import org.webrtc.VideoTrack;

public class Sos1 extends AppCompatActivity {

    private static final int REQUEST_CAMERA_PERMISSION = 200;

    private PeerConnectionFactory peerConnectionFactory;
    private VideoCapturer videoCapturer;
    private VideoTrack localVideoTrack;
    private AudioTrack localAudioTrack;
    private SurfaceViewRenderer surfaceViewRenderer;
    private EglBase eglBase;
    private LocationClient mLocationClient;
    private SurfaceTextureHelper surfaceTextureHelper;
    private boolean isActivityVisible = false;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_sos1);

        surfaceViewRenderer = findViewById(R.id.surface_view);
        Button sosButton = findViewById(R.id.emergency);
        Button mapButton = findViewById(R.id.map);
        Button lookButton = findViewById(R.id.look);

        eglBase = EglBase.create();
        surfaceViewRenderer.init(eglBase.getEglBaseContext(), null);
        surfaceViewRenderer.setVisibility(View.GONE);

        if (ContextCompat.checkSelfPermission(this, Manifest.permission.CAMERA) != PackageManager.PERMISSION_GRANTED ||
                ContextCompat.checkSelfPermission(this, Manifest.permission.RECORD_AUDIO) != PackageManager.PERMISSION_GRANTED ||
                ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
            ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.CAMERA, Manifest.permission.RECORD_AUDIO, Manifest.permission.ACCESS_FINE_LOCATION}, REQUEST_CAMERA_PERMISSION);
        } else {
            initializeWebRTC();
            startLocation();
        }

        sosButton.setOnClickListener(v -> startStreamingActivity());

        // Add event listeners for map and look buttons
        mapButton.setOnClickListener(this::Lookmap);
        lookButton.setOnClickListener(this::LookCon);
    }

    @Override
    protected void onStart() {
        super.onStart();
        isActivityVisible = true;
    }

    @Override
    protected void onStop() {
        super.onStop();
        isActivityVisible = false;
    }

    public void Lookmap(View view) {
        Intent intent = new Intent(Sos1.this, Sos.class);
        if (mLocationClient != null && mLocationClient.getLastKnownLocation() != null) {
            intent.putExtra("latitude", mLocationClient.getLastKnownLocation().getLatitude());
            intent.putExtra("longitude", mLocationClient.getLastKnownLocation().getLongitude());
        }
        startActivity(intent);
    }

    public void LookCon(View view) {
        Intent intent = new Intent(Sos1.this, ViewerActivity.class);
        startActivity(intent);
    }

    private void startStreamingActivity() {
        Intent intent = new Intent(Sos1.this, StreamingActivity.class);
        startActivity(intent);
    }

    private void initializeWebRTC() {
        PeerConnectionFactory.InitializationOptions initializationOptions =
                PeerConnectionFactory.InitializationOptions.builder(this)
                        .createInitializationOptions();
        PeerConnectionFactory.initialize(initializationOptions);

        PeerConnectionFactory.Options options = new PeerConnectionFactory.Options();
        peerConnectionFactory = PeerConnectionFactory.builder()
                .setOptions(options)
                .createPeerConnectionFactory();

        MediaConstraints constraints = new MediaConstraints();
        surfaceTextureHelper = SurfaceTextureHelper.create("CaptureThread", eglBase.getEglBaseContext());

        videoCapturer = createCameraCapturer(new Camera1Enumerator(false));
        VideoSource videoSource = peerConnectionFactory.createVideoSource(videoCapturer.isScreencast());
        videoCapturer.initialize(surfaceTextureHelper, this, videoSource.getCapturerObserver());
        localVideoTrack = peerConnectionFactory.createVideoTrack("100", videoSource);
        localVideoTrack.addSink(surfaceViewRenderer);

        AudioSource audioSource = peerConnectionFactory.createAudioSource(constraints);
        localAudioTrack = peerConnectionFactory.createAudioTrack("101", audioSource);
    }

    private void startLocation() {
        try {
            mLocationClient = new LocationClient(getApplicationContext());
            mLocationClient.registerLocationListener(new MyLocationListener());
            LocationClientOption option = new LocationClientOption();
            option.setIsNeedAddress(true);
            mLocationClient.setLocOption(option);
            mLocationClient.start();
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }

    private class MyLocationListener extends BDAbstractLocationListener {
        @Override
        public void onReceiveLocation(BDLocation bdLocation) {
            if (bdLocation != null) {
                String address = bdLocation.getAddrStr();
                showLocationDialog(address);
                mLocationClient.stop();
            } else {
                Toast.makeText(Sos1.this, "获取位置信息失败", Toast.LENGTH_SHORT).show();
            }
        }
    }

    private void showLocationDialog(String location) {
        // Run on the UI thread
        new Handler(Looper.getMainLooper()).post(() -> {
            if (isActivityVisible) {
                AlertDialog.Builder builder = new AlertDialog.Builder(Sos1.this);
                builder.setMessage(location + "有人需要帮助")
                        .setTitle("位置信息")
                        .setPositiveButton("确定", (dialog, which) -> dialog.dismiss());
                builder.create().show();
            }
        });
    }

    @Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
        if (requestCode == REQUEST_CAMERA_PERMISSION) {
            if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED &&
                    grantResults.length > 1 && grantResults[1] == PackageManager.PERMISSION_GRANTED &&
                    grantResults.length > 2 && grantResults[2] == PackageManager.PERMISSION_GRANTED) {
                initializeWebRTC();
                startLocation();
            } else {
                Toast.makeText(this, "需要相机、音频和位置权限", Toast.LENGTH_SHORT).show();
            }
        }
    }

    private VideoCapturer createCameraCapturer(Camera1Enumerator enumerator) {
        final String[] deviceNames = enumerator.getDeviceNames();
        for (String deviceName : deviceNames) {
            if (enumerator.isFrontFacing(deviceName)) {
                VideoCapturer videoCapturer = enumerator.createCapturer(deviceName, null);
                if (videoCapturer != null) {
                    return videoCapturer;
                }
            }
        }
        return null;
    }
}