Question

Я пытаюсь создать реактивный проект, в котором я могу войти в камеру на родной стороне, нажав на кнопку реакции.Нужно щелкнуть один рис и отправить путь к файлу, чтобы среагировать. Все работает отлично.файл сохраняется (разрешение 1600X1200), но не возвращается на сторону реакции, и появляется ошибка, а именно: -

2019-05-30 15: 32: 49.497 28080-28132 / com.gjcamera E / BufferItemConsumer:
[ImageReader-1600x1200f100m1-28080-0] Не удалось освободить буфер: неизвестная ошибка -1 (1).

Я не знаю, где я делаю ошибку.

вот мой код: -

App.js: -

import React, { Component } from 'react';
import { Platform, StyleSheet, Text, View, TouchableOpacity, NativeModules } from 'react-native';

const GJC = NativeModules.GJCamera;

type Props = {};
export default class App extends Component<Props> {
    constructor() {
    super();
    this.state = {
        imagePathh: "empty",
    }
    this.OpenMyCamera = this.OpenMyCamera.bind();
    }
    OpenMyCamera = async () => {
        const result = await GJC.openCamera();
        this.setState({ imagePathh: result });
    }
    render() {
        return (
            <View style={styles.container}>
                <Text style={styles.welcome}>Welcome to React Native!</Text>
                <Text style={styles.instructions}>To enter camera, click on the "Camera" below</Text>
                <Text style={styles.instructions}>The path of image will be shown below...</Text>

                <TouchableOpacity style={{ backgroundColor: 'green' }} onPress={() => this.OpenMyCamera()}>
                    <Text style={{ color: '#fff' }}>Camera</Text>
                </TouchableOpacity>
                <Text style={{ paddingTop: 300 }}>The Path of image is </Text>
                <Text style={{ color: "skyblue" }}>{this.state.imagePathh}</Text>
            </View>
        );
    }
}

const styles = StyleSheet.create({
    container: {
        flex: 1,
        justifyContent: 'center',
        alignItems: 'center',
        backgroundColor: '#F5FCFF',
    },
    welcome: {
        fontSize: 20,
        textAlign: 'center',
        margin: 10,
    },
    instructions: {
        textAlign: 'center',
        color: '#333333',
        marginBottom: 5,
    },
});

GJCameraModule.java:-


import android.annotation.SuppressLint;
import android.app.Activity;
import android.content.Intent;
import android.net.Uri;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.Environment;
import android.provider.Settings;
import android.support.annotation.Nullable;
import android.widget.Toast;

import com.facebook.react.bridge.Promise;
import com.facebook.react.bridge.ReactApplicationContext;
import com.facebook.react.bridge.ReactContextBaseJavaModule;
import com.facebook.react.bridge.ReactMethod;

import java.util.HashMap;
import java.util.Map;

import static android.support.v4.content.ContextCompat.startActivity;

public class GJCameraModule extends ReactContextBaseJavaModule {

    private Promise promise;


    public GJCameraModule(ReactApplicationContext reactContext) {
        super(reactContext);
    }

    @ReactMethod
    public String show() {
        String imagePath = "";
        String imageName = "";
        imageName = "";//GJCamera.sendPath();
        imagePath = Environment.getExternalStorageDirectory() + "/DCIM/Camera/" + imageName + ".jpg";
        return imagePath.toString();
    }

    @ReactMethod
    public void openCamera(final Promise promise) {
        Toast.makeText(getReactApplicationContext(), "LOLZ", Toast.LENGTH_SHORT).show();
        try {
            GJCamera gjc = GJCamera.newInstance();
            gjc.setPromise(promise);
            Intent intent = new Intent(getCurrentActivity(), GJCamera.class);
            getCurrentActivity().startActivity(intent);
            Toast.makeText(getReactApplicationContext(), "LOLZ--Return", Toast.LENGTH_SHORT).show();
        } catch (Exception e) {
            promise.reject(e.getMessage(), e.getMessage());
        }
    }

    @Override
    public String getName() {
        return "GJCamera";
    }

    @Override
    public Map<String, Object> getConstants() {
        final Map<String, Object> constants = new HashMap<>();
        String android_id = Settings.System.getString(getReactApplicationContext().getContentResolver(), Settings.Secure.ANDROID_ID);
        constants.put("uniqueId", android_id);
        return constants;
    }
}

GJCamera.java: -

package com.gjcamera;

import android.Manifest;
import android.content.Context;
import android.content.pm.PackageManager;
import android.graphics.ImageFormat;
import android.graphics.SurfaceTexture;
import android.hardware.camera2.CameraAccessException;
import android.hardware.camera2.CameraCaptureSession;
import android.hardware.camera2.CameraCharacteristics;
import android.hardware.camera2.CameraDevice;
import android.hardware.camera2.CameraManager;
import android.hardware.camera2.CameraMetadata;
import android.hardware.camera2.CaptureRequest;
import android.hardware.camera2.TotalCaptureResult;
import android.hardware.camera2.params.StreamConfigurationMap;
import android.media.Image;
import android.media.ImageReader;
import android.os.Build;
import android.os.Environment;
import android.os.Handler;
import android.os.HandlerThread;
import android.support.annotation.NonNull;
import android.support.v4.app.ActivityCompat;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Size;
import android.util.SparseIntArray;
import android.view.Surface;
import android.view.TextureView;
import android.view.View;
import android.widget.ImageButton;
import android.widget.Toast;

import com.facebook.react.bridge.Arguments;
import com.facebook.react.bridge.Promise;
import com.facebook.react.bridge.WritableMap;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.nio.ByteBuffer;
import java.sql.Time;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Calendar;
import java.util.Date;
import java.util.List;
import java.util.TimeZone;
import java.util.UUID;

public class GJCamera extends AppCompatActivity {

    private ImageButton btnCapture;
    private TextureView textureView;
    public static String imgName;
    private static Promise promise;

    //Check state orientation of output image
    private static final SparseIntArray ORIENTATIONS = new SparseIntArray();

    static {
        ORIENTATIONS.append(Surface.ROTATION_0, 90);
        ORIENTATIONS.append(Surface.ROTATION_90, 0);
        ORIENTATIONS.append(Surface.ROTATION_180, 270);
        ORIENTATIONS.append(Surface.ROTATION_270, 180);
    }

    private String cameraId;
    private CameraDevice cameraDevice;
    private CameraCaptureSession cameraCaptureSessions;
    private CaptureRequest.Builder captureRequestBuilder;
    private Size imageDimension;
    private ImageReader imageReader;

    //Save to FILE
    private File file;
    private static final int REQUEST_CAMERA_PERMISSION = 200;
    private boolean mFlashSupported;
    private Handler mBackgroundHandler;
    private HandlerThread mBackgroundThread;

    SurfaceTexture texture;

    public static GJCamera newInstance() {
        GJCamera a = new GJCamera();
        return a;
    }


    CameraDevice.StateCallback stateCallback = new CameraDevice.StateCallback() {
        @Override
        public void onOpened(@NonNull CameraDevice camera) {
            cameraDevice = camera;
            createCameraPreview();
        }

        @Override
        public void onDisconnected(@NonNull CameraDevice camera) {
//            if (promise!=null) {    promise.reject("Error");}
//            promise = null;
            cameraDevice = camera;
            returnHome();
        }

        @Override
        public void onError(@NonNull CameraDevice camera, int i) {
//            if (promise!=null) {    promise.reject("Error");}
//            promise = null;
            cameraDevice = camera;
            returnHome();
        }
    };

    public void setPromise(Promise promise) {
        this.promise = promise;
    }


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

        textureView = findViewById(R.id.textureView);
        //From Java 1.4 , you can use keyword 'assert' to check expression true or false
        assert textureView != null;
        textureView.setSurfaceTextureListener(textureListener);
        btnCapture = findViewById(R.id.clickButton);
        btnCapture.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                takePicture();
            }
        });
    }


    private void takePicture() {
        if (cameraDevice == null)
            return;
        CameraManager manager = null;
        manager = (CameraManager) getSystemService(Context.CAMERA_SERVICE);

        try {
            CameraCharacteristics characteristics = manager.getCameraCharacteristics(cameraDevice.getId());
            Size[] jpegSizes = null;
            if (characteristics != null)
                jpegSizes = characteristics.get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP)
                        .getOutputSizes(ImageFormat.JPEG);

            //Capture image with custom size
            int width = 1600;
            int height = 1200;

            imageReader = ImageReader.newInstance(width, height, ImageFormat.JPEG, 1);
            List<Surface> outputSurface = new ArrayList<>(2);
            outputSurface.add(imageReader.getSurface());
            outputSurface.add(new Surface(textureView.getSurfaceTexture()));

            final CaptureRequest.Builder captureBuilder = cameraDevice.createCaptureRequest(CameraDevice.TEMPLATE_STILL_CAPTURE);
            captureBuilder.addTarget(imageReader.getSurface());
            captureBuilder.set(CaptureRequest.CONTROL_MODE, CameraMetadata.CONTROL_MODE_AUTO);

            //Check orientation base on device
            int rotation = getWindowManager().getDefaultDisplay().getRotation();
            captureBuilder.set(CaptureRequest.JPEG_ORIENTATION, ORIENTATIONS.get(rotation));

            Calendar calendar = Calendar.getInstance(TimeZone.getDefault());
            file = new File(Environment.getExternalStorageDirectory() + "/DCIM/Camera/IMG_" + calendar.get(Calendar.YEAR) + calendar.get(Calendar.MONTH) + calendar.get(Calendar.DATE) + "_" + calendar.get(Calendar.HOUR_OF_DAY) + calendar.get(Calendar.MINUTE) + calendar.get(Calendar.SECOND) + ".jpg");
            ImageReader.OnImageAvailableListener readerListener = null;
            readerListener = new ImageReader.OnImageAvailableListener() {
                @Override
                public void onImageAvailable(ImageReader imageReadr) {
                    Image image = null;
                    try {
                        image = imageReader.acquireLatestImage();
                        ByteBuffer buffer = image.getPlanes()[0].getBuffer();
                        byte[] bytes = new byte[buffer.capacity()];
                        buffer.get(bytes);
                        save(bytes);

                    } catch (FileNotFoundException e) {
                        e.printStackTrace();
                    } catch (IOException e) {
                        e.printStackTrace();
                    } finally {
                        {
                            if (image != null)
                                image.close();
                        }
                    }
                }

                private void save(byte[] bytes) throws IOException {
                    OutputStream outputStream = null;
                    try {
                        outputStream = new FileOutputStream(file);
                        outputStream.write(bytes);
                    } finally {
                        if (outputStream != null)
                            outputStream.close();
                    }

                }
            };

            imageReader.setOnImageAvailableListener(readerListener, mBackgroundHandler);
            final CameraCaptureSession.CaptureCallback captureListener = new CameraCaptureSession.CaptureCallback() {
                @Override
                public void onCaptureCompleted(@NonNull CameraCaptureSession session, @NonNull CaptureRequest request, @NonNull TotalCaptureResult result) {
                    super.onCaptureCompleted(session, request, result);
                    Toast.makeText(GJCamera.this, "Saved " + file, Toast.LENGTH_SHORT).show();
                    returnHome();

                }
            };


            cameraDevice.createCaptureSession(outputSurface, new CameraCaptureSession.StateCallback() {
                @Override
                public void onConfigured(@NonNull CameraCaptureSession cameraCaptureSession) {
                    try {
                        cameraCaptureSession.capture(captureBuilder.build(), captureListener, mBackgroundHandler);
//                        cameraDevice.close();
                        //convertFileToWritableMap(file));
//                        promise = null;

                    } catch (CameraAccessException e) {
                        e.printStackTrace();
                    }
                }

                @Override
                public void onConfigureFailed(@NonNull CameraCaptureSession cameraCaptureSession) {

                }
            }, mBackgroundHandler);


        } catch (CameraAccessException e) {
            e.printStackTrace();
        }
    }

    private void returnHome() {
        texture.release();
//        if(imageReader != null) {
//            imageReader.close();
//            imageReader = null;
//        }
        if (cameraDevice != null) {
            cameraDevice.close();
            cameraDevice = null;
        }
        if (cameraCaptureSessions != null) {
            cameraCaptureSessions.close();
            cameraCaptureSessions = null;
        }
        if (promise != null) {
            promise.resolve(convertFileToWritableMap(file));
            promise = null;
        }
    }

    private void createCameraPreview() {
        try {
            texture = textureView.getSurfaceTexture();
            assert texture != null;
            texture.setDefaultBufferSize(1600, 1200);
            Surface surface = new Surface(texture);
            captureRequestBuilder = cameraDevice.createCaptureRequest(CameraDevice.TEMPLATE_STILL_CAPTURE);

            captureRequestBuilder.addTarget(surface);
            cameraDevice.createCaptureSession(Arrays.asList(surface), new CameraCaptureSession.StateCallback() {
                @Override
                public void onConfigured(@NonNull CameraCaptureSession cameraCaptureSession) {
                    if (cameraDevice == null)
                        return;
                    cameraCaptureSessions = cameraCaptureSession;
                    updatePreview();
                }

                @Override
                public void onConfigureFailed(@NonNull CameraCaptureSession cameraCaptureSession) {
                    Toast.makeText(GJCamera.this, "Changed", Toast.LENGTH_SHORT).show();
                }
            }, null);
        } catch (CameraAccessException e) {
            e.printStackTrace();
        }
    }

    private void updatePreview() {
        if (cameraDevice == null)
            Toast.makeText(this, "Error", Toast.LENGTH_SHORT).show();
        captureRequestBuilder.set(CaptureRequest.CONTROL_MODE, CaptureRequest.CONTROL_MODE_AUTO);
        try {
            cameraCaptureSessions.setRepeatingRequest(captureRequestBuilder.build(), null, mBackgroundHandler);
        } catch (CameraAccessException e) {
            e.printStackTrace();
        }
    }

    private void openCamera() {
        CameraManager manager = (CameraManager) getSystemService(Context.CAMERA_SERVICE);
        try {
            cameraId = manager.getCameraIdList()[0];
            CameraCharacteristics characteristics = manager.getCameraCharacteristics(cameraId);
            StreamConfigurationMap map = characteristics.get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP);
            assert map != null;
            imageDimension = map.getOutputSizes(SurfaceTexture.class)[0];
            //Check realtime permission if run higher API 23
            if (ActivityCompat.checkSelfPermission(this, Manifest.permission.CAMERA) != PackageManager.PERMISSION_GRANTED) {
                ActivityCompat.requestPermissions(this, new String[]{
                        Manifest.permission.CAMERA,
                        Manifest.permission.WRITE_EXTERNAL_STORAGE
                }, REQUEST_CAMERA_PERMISSION);
                return;
            }
            manager.openCamera(cameraId, stateCallback, null);

        } catch (CameraAccessException e) {
            e.printStackTrace();
        }
    }

    TextureView.SurfaceTextureListener textureListener = new TextureView.SurfaceTextureListener() {
        @Override
        public void onSurfaceTextureAvailable(SurfaceTexture surfaceTexture, int i, int i1) {
            openCamera();
        }

        @Override
        public void onSurfaceTextureSizeChanged(SurfaceTexture surfaceTexture, int i, int i1) {

        }

        @Override
        public boolean onSurfaceTextureDestroyed(SurfaceTexture surfaceTexture) {
            return false;
        }

        @Override
        public void onSurfaceTextureUpdated(SurfaceTexture surfaceTexture) {

        }
    };

    @Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
        if (requestCode == REQUEST_CAMERA_PERMISSION) {
            if (grantResults[0] != PackageManager.PERMISSION_GRANTED) {
                Toast.makeText(this, "You can't use camera without permission", Toast.LENGTH_SHORT).show();
                finish();
            }
        }
    }

    @Override
    protected void onResume() {
        super.onResume();
        startBackgroundThread();
        if (textureView.isAvailable())
            openCamera();
        else
            textureView.setSurfaceTextureListener(textureListener);
    }

    @Override
    protected void onPause() {
        stopBackgroundThread();
        super.onPause();
    }

    private void stopBackgroundThread() {
        mBackgroundThread.quitSafely();
        try {
            mBackgroundThread.join();
            mBackgroundThread = null;
            mBackgroundHandler = null;
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
    }

    private void startBackgroundThread() {
        mBackgroundThread = new HandlerThread("Camera Background");
        mBackgroundThread.start();
        mBackgroundHandler = new Handler(mBackgroundThread.getLooper());
    }

    public static WritableMap convertFileToWritableMap(File fileLocation) {
        WritableMap newFile = Arguments.createMap();

        if (fileLocation == null) return newFile;

        newFile.putString("imgPath", fileLocation.getPath());
        return newFile;
    }
}

activity_gjcamera.xml: -

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.gjcamera.MainActivity">

<TextureView
    android:id="@+id/textureView"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:layout_above="@+id/clickButton"

    />

<ImageButton
    android:id="@+id/clickButton"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_alignParentBottom="true"
    android:layout_alignParentRight="true"
    android:src="@drawable/camera_click" />

</RelativeLayout>

Кстати, спасибо за помощь.

Gáüřãv Jõşhï · Answer 1 · 05 июня 2019

наконец, нашел его: - в GJCamera.java внутри returnHome () Метод: -

if (promise != null) {
    promise.resolve(convertFileToWritableMap(file));
    promise = null;
}

измените его на: -

if (promise != null) {
    promise.resolve(convertFileToWritableMap(file));
    promise = null;
    finish();     // in order to finish the activity.
}

Весь проект присутствует Здесь .

android.hardware.camera2 на реагировать-родной

Пожалуйста, войдите или зарегистрируйтесь чтобы ответить на этот вопрос.

1 Ответ

Пожалуйста, войдите или зарегистрируйтесь что бы добавить комментарий.

android.hardware.camera2 на реагировать-родной

Пожалуйста, войдите или зарегистрируйтесь чтобы ответить на этот вопрос.

1 Ответ

Пожалуйста, войдите или зарегистрируйтесь что бы добавить комментарий.

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