Открыть камеру в WebView?

Question

Здравствуйте. У меня возникла следующая проблема: на сайте, который находится в моем веб-просмотре, есть запись с фотографией, которая при нажатии открывает камеру в браузере (это в обычном браузере), однако в веб-просмотре она не дает мне возможность камера или галерея, как я могу решить это? Я пытался реализовать часть библиотеки os-file-up, но не получил результатов.

MainActivity.java

package br.com.fradeilha.www.supermercadofrade;

import android.Manifest;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.content.res.Configuration;
import android.graphics.Bitmap;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.os.Environment;
import android.provider.MediaStore;
import android.support.v4.app.ActivityCompat;
import android.support.v4.content.ContextCompat;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.webkit.ValueCallback;
import android.webkit.WebChromeClient;
import android.webkit.WebResourceError;
import android.webkit.WebResourceRequest;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.ProgressBar;

import java.io.File;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Date;

import im.delight.android.webview.AdvancedWebView;

public class MainActivity extends AppCompatActivity implements AdvancedWebView.Listener {

    private AdvancedWebView mWebView;
    private ProgressBar pb;

    private String mCM;
    private ValueCallback<Uri> mUM;
    private ValueCallback<Uri[]> mUMA;
    private final static int FCR=1;
    private boolean multiple_files = false;

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent intent){
        super.onActivityResult(requestCode, resultCode, intent);
        if(Build.VERSION.SDK_INT >= 21){
            Uri[] results = null;
            //checking if response is positive
            if(resultCode== Activity.RESULT_OK){
                if(requestCode == FCR){
                    if(null == mUMA){
                        return;
                    }
                    if(intent == null || intent.getData() == null){
                        if(mCM != null){
                            results = new Uri[]{Uri.parse(mCM)};
                        }
                    }else{
                        String dataString = intent.getDataString();
                        if(dataString != null){
                            results = new Uri[]{Uri.parse(dataString)};
                        } else {
                            if(multiple_files) {
                                if (intent.getClipData() != null) {
                                    final int numSelectedFiles = intent.getClipData().getItemCount();
                                    results = new Uri[numSelectedFiles];
                                    for (int i = 0; i < numSelectedFiles; i++) {
                                        results[i] = intent.getClipData().getItemAt(i).getUri();
                                    }
                                }
                            }
                        }
                    }
                }
            }
            mUMA.onReceiveValue(results);
            mUMA = null;
        }else{
            if(requestCode == FCR){
                if(null == mUM) return;
                Uri result = intent == null || resultCode != RESULT_OK ? null : intent.getData();
                mUM.onReceiveValue(result);
                mUM = null;
            }
        }
    }


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

        // Identifica
        pb = (findViewById(R.id.pb));
        mWebView = findViewById(R.id.webview);
        assert mWebView != null;
        mWebView.getSettings().setJavaScriptEnabled(true);
        mWebView.getSettings().setAllowFileAccess(true);
        mWebView.getSettings().setDomStorageEnabled(true);
        mWebView.setListener(this, this);
        mWebView.loadUrl("https://www.sitemercado.com.br/frade");
        mWebView.getSettings().setJavaScriptCanOpenWindowsAutomatically(true);


        mWebView.setWebChromeClient(new WebChromeClient() {
            /*
             * openFileChooser is not a public Android API and has never been part of the SDK.
             */
            //handling input[type="file"] requests for android API 16+
            @SuppressLint("ObsoleteSdkInt")
            @SuppressWarnings("unused")
            public void openFileChooser(ValueCallback<Uri> uploadMsg, String acceptType, String capture) {
                mUM = uploadMsg;
                Intent i = new Intent(Intent.ACTION_GET_CONTENT);
                i.addCategory(Intent.CATEGORY_OPENABLE);
                i.setType("*/*");
                if (multiple_files && Build.VERSION.SDK_INT >= 18) {
                    i.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
                }
                startActivityForResult(Intent.createChooser(i, "File Chooser"), FCR);
            }

            //handling input[type="file"] requests for android API 21+
            @SuppressLint("InlinedApi")
            public boolean onShowFileChooser(WebView webView, ValueCallback<Uri[]> filePathCallback, FileChooserParams fileChooserParams) {
                if (file_permission()) {
                    String[] perms = {Manifest.permission.WRITE_EXTERNAL_STORAGE, Manifest.permission.READ_EXTERNAL_STORAGE, Manifest.permission.CAMERA};

                    //checking for storage permission to write images for upload
                    if (ContextCompat.checkSelfPermission(MainActivity.this, Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED && ContextCompat.checkSelfPermission(MainActivity.this, Manifest.permission.CAMERA) != PackageManager.PERMISSION_GRANTED) {
                        ActivityCompat.requestPermissions(MainActivity.this, perms, FCR);

                        //checking for WRITE_EXTERNAL_STORAGE permission
                    } else if (ContextCompat.checkSelfPermission(MainActivity.this, Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
                        ActivityCompat.requestPermissions(MainActivity.this, new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE, Manifest.permission.READ_EXTERNAL_STORAGE}, FCR);

                        //checking for CAMERA permissions
                    } else if (ContextCompat.checkSelfPermission(MainActivity.this, Manifest.permission.CAMERA) != PackageManager.PERMISSION_GRANTED) {
                        ActivityCompat.requestPermissions(MainActivity.this, new String[]{Manifest.permission.CAMERA}, FCR);
                    }
                    if (mUMA != null) {
                        mUMA.onReceiveValue(null);
                    }
                    mUMA = filePathCallback;
                    Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
                    if (takePictureIntent.resolveActivity(MainActivity.this.getPackageManager()) != null) {
                        File photoFile = null;
                        try {
                            photoFile = createImageFile();
                            takePictureIntent.putExtra("PhotoPath", mCM);
                        } catch (IOException ex) {

                        }
                        if (photoFile != null) {
                            mCM = "file:" + photoFile.getAbsolutePath();
                            takePictureIntent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(photoFile));
                        } else {
                            takePictureIntent = null;
                        }
                    }
                    Intent contentSelectionIntent = new Intent(Intent.ACTION_GET_CONTENT);
                    contentSelectionIntent.addCategory(Intent.CATEGORY_OPENABLE);
                    contentSelectionIntent.setType("*/*");
                    if (multiple_files) {
                        contentSelectionIntent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
                    }
                    Intent[] intentArray;
                    if (takePictureIntent != null) {
                        intentArray = new Intent[]{takePictureIntent};
                    } else {
                        intentArray = new Intent[0];
                    }

                    Intent chooserIntent = new Intent(Intent.ACTION_CHOOSER);
                    chooserIntent.putExtra(Intent.EXTRA_INTENT, contentSelectionIntent);
                    chooserIntent.putExtra(Intent.EXTRA_TITLE, "File Chooser");
                    chooserIntent.putExtra(Intent.EXTRA_INITIAL_INTENTS, intentArray);
                    startActivityForResult(chooserIntent, FCR);
                    return true;
                }else{
                    return false;
                }
            }
        });

        mWebView.setWebViewClient(new WebViewClient(){
            @Override
            public void onReceivedError(WebView view, WebResourceRequest request, WebResourceError error) {
                super.onReceivedError(view, request, error);
                Intent i = new Intent(MainActivity.this, off.class);
                startActivity(i);
                overridePendingTransition(android.R.anim.fade_in, android.R.anim.fade_out);
                finish();
            }
        });

        // Detecta Validação
        mWebView.setWebViewClient(new WebViewClient(){
            @Override
            public boolean shouldOverrideUrlLoading(WebView view, String url) {
                if (Uri.parse(url).getPath().contains("valida")) {
                    Intent i = new Intent(Intent.ACTION_VIEW);
                    i.setData(Uri.parse(url));
                    startActivity(i);
                    return true;
                }
                return false;


            }
        });



        // Permissão Camera


        // Barra de Progresso
        pb.setProgress(0);
        mWebView.setWebChromeClient(new WebChromeClient() {



            @Override
            public void onProgressChanged(WebView view, int Progress) {
                pb.setProgress(Progress);
                if (Progress == 100) {
                    pb.setVisibility(view.GONE);
                } else {
                    pb.setVisibility(view.VISIBLE);
                }
                super.onProgressChanged(view, Progress);
            }
        });

        if (isConnected(getApplicationContext())){
        } else {
            Intent i = new Intent(MainActivity.this, off.class);
            startActivity(i);
            overridePendingTransition(android.R.anim.fade_in, android.R.anim.fade_out);
            finish();
        }
        // ...
    }

    @SuppressLint("NewApi")
    @Override

    // Verifica conexão ao voltar de segundo plano
    protected void onResume() {
        super.onResume();
        mWebView.onResume();
        if (isConnected(getApplicationContext())){
        } else {
            Intent i = new Intent(MainActivity.this, off.class);
            startActivity(i);
            overridePendingTransition(android.R.anim.fade_in, android.R.anim.fade_out);
            finish();
        }
    }



    @SuppressLint("NewApi")
    @Override
    protected void onPause() {
        mWebView.onPause();
        // ...
        super.onPause();
    }

    @Override
    protected void onDestroy() {
        mWebView.onDestroy();
        // ...
        super.onDestroy();
    }

//    @Override
//    protected void onActivityResult(int requestCode, int resultCode, Intent intent) {
//        super.onActivityResult(requestCode, resultCode, intent);


//    }

    public boolean file_permission(){
        if(Build.VERSION.SDK_INT >=23 && (ContextCompat.checkSelfPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED || ContextCompat.checkSelfPermission(this, Manifest.permission.CAMERA) != PackageManager.PERMISSION_GRANTED)) {
            ActivityCompat.requestPermissions(MainActivity.this, new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE, Manifest.permission.CAMERA}, 1);
            return false;
        }else{
            return true;
        }
    }

    //creating new image file here
    private File createImageFile() throws IOException{
        @SuppressLint("SimpleDateFormat") String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());
        String imageFileName = "img_"+timeStamp+"_";
        File storageDir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES);
        return File.createTempFile(imageFileName,".jpg",storageDir);
    }


    @Override
    public void onBackPressed() {
        if (!mWebView.onBackPressed()) {
            return;
        }
        // ...
        super.onBackPressed();
    }

    @Override
    public void onPageStarted(String url, Bitmap favicon) {
    }

    @Override
    public void onPageFinished(String url) {
    }

    // Detecta erro de carregamento
    @Override
    public void onPageError(int errorCode, String description, String failingUrl) {
        Intent i = new Intent(MainActivity.this, off.class);
        startActivity(i);
        overridePendingTransition(android.R.anim.fade_in, android.R.anim.fade_out);
        finish();
    }


    @Override
    public void onDownloadRequested(String url, String suggestedFilename, String mimeType, long contentLength, String contentDisposition, String userAgent) {
    }

    @Override
    public void onExternalPageRequest(String url) {
    }

    // Script que verifica internet
    public static boolean isConnected(Context context) {
        ConnectivityManager cm = (ConnectivityManager) context
                .getSystemService(Context.CONNECTIVITY_SERVICE);
        NetworkInfo activeNetwork = cm.getActiveNetworkInfo();
        if (null != activeNetwork && activeNetwork.isConnectedOrConnecting()) {
            return true;
        } else {
            return false;
        }
    }
}

AndroidManifest.xml

**<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.CAMERA" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />**