android嵌套webview调原生相机相册

    //初始化webView
    private void initWebView() {
        //从布局文件中扩展webView
        webView = (WebView) this.findViewById(R.id.webview);
        initWebViewSetting();
    }

  //初始化webViewSetting
    @RequiresApi(api = Build.VERSION_CODES.JELLY_BEAN)
    private void initWebViewSetting() {
        WebSettings settings = webView.getSettings();
        settings.setUseWideViewPort(true);
        settings.setLoadWithOverviewMode(true);
        settings.setDomStorageEnabled(true);
        settings.setDefaultTextEncodingName("UTF-8");
        settings.setAllowContentAccess(true); // 是否可访问Content Provider的资源，默认值 true
        settings.setAllowFileAccess(true);    // 是否可访问本地文件，默认值 true
        // 是否允许通过file url加载的Javascript读取本地文件，默认值 false
        settings.setAllowFileAccessFromFileURLs(false);
        // 是否允许通过file url加载的Javascript读取全部资源(包括文件,http,https)，默认值 false
        settings.setAllowUniversalAccessFromFileURLs(false);
        //开启JavaScript支持
        settings.setJavaScriptEnabled(true);
        // 支持缩放
        settings.setSupportZoom(true);


        //加载地址
        webView.loadUrl(url);
        webView.setWebChromeClient(new WebChromeClient() {
            @Override
            public void onProgressChanged(WebView view, int newProgress) {
                /*if (newProgress == 100) {
                    progressBar.setVisibility(View.GONE);//加载完网页进度条消失
                } else {
                    progressBar.setProgress(newProgress);//设置进度值
                    progressBar.setVisibility(View.VISIBLE);//开始加载网页时显示进度条
                }*/
            }

            /**
             * 8(Android 2.2) <= API <= 10(Android 2.3)回调此方法
             */
            private void openFileChooser(android.webkit.ValueCallback<Uri> uploadMsg) {
                Log.e("WangJ", "运行方法 openFileChooser-1");
                // (2)该方法回调时说明版本API < 21，此时将结果赋值给 mUploadCallbackBelow，使之 != null
                mUploadCallbackBelow = uploadMsg;
                takePhoto();
            }

            /**
             * 11(Android 3.0) <= API <= 15(Android 4.0.3)回调此方法
             */
            public void openFileChooser(android.webkit.ValueCallback<Uri> uploadMsg, String acceptType) {
                Log.e("WangJ", "运行方法 openFileChooser-2 (acceptType: " + acceptType + ")");
                // 这里我们就不区分input的参数了，直接用拍照
                openFileChooser(uploadMsg);
            }

            /**
             * 16(Android 4.1.2) <= API <= 20(Android 4.4W.2)回调此方法
             */
            public void openFileChooser(android.webkit.ValueCallback<Uri> uploadMsg, String acceptType, String capture) {
                Log.e("WangJ", "运行方法 openFileChooser-3 (acceptType: " + acceptType + "; capture: " + capture + ")");
                // 这里我们就不区分input的参数了，直接用拍照
                openFileChooser(uploadMsg);
            }

            /**
             * API >= 21(Android 5.0.1)回调此方法
             */
            @Override
            public boolean onShowFileChooser(WebView webView, ValueCallback<Uri[]> valueCallback, WebChromeClient.FileChooserParams
                    fileChooserParams) {
                Log.e("WangJ", "运行方法 onShowFileChooser");
                // (1)该方法回调时说明版本API >= 21，此时将结果赋值给 mUploadCallbackAboveL，使之 != null
                mUploadCallbackAboveL = valueCallback;
                takePhoto();
                return true;
            }
        });

}
 /**
     * 调用相机
     */
    private void takePhoto() {
        // 指定拍照存储位置的方式调起相机
        String filePath = Environment.getExternalStorageDirectory() + File.separator
                + Environment.DIRECTORY_PICTURES + File.separator;
        String fileName = "IMG_" + DateFormat.format("yyyyMMdd_hhmmss", Calendar.getInstance(Locale.CHINA)) + ".jpg";
        imageUri = Uri.fromFile(new File(filePath + fileName));

//        Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
//        intent.putExtra(MediaStore.EXTRA_OUTPUT, imageUri);
//        startActivityForResult(intent, REQUEST_CODE);


        // 选择图片（不包括相机拍照）,则不用成功后发刷新图库的广播
//        Intent i = new Intent(Intent.ACTION_GET_CONTENT);
//        i.addCategory(Intent.CATEGORY_OPENABLE);
//        i.setType("image/*");
//        startActivityForResult(Intent.createChooser(i, "Image Chooser"), REQUEST_CODE);

        Intent captureIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
        captureIntent.putExtra(MediaStore.EXTRA_OUTPUT, imageUri);

        Intent Photo = new Intent(Intent.ACTION_PICK,
                android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);

        Intent chooserIntent = Intent.createChooser(Photo, "Image Chooser");
        chooserIntent.putExtra(Intent.EXTRA_INITIAL_INTENTS, new Parcelable[]{captureIntent});

        startActivityForResult(chooserIntent, REQUEST_CODE);
    }


    /**
     * Android API < 21(Android 5.0)版本的回调处理
     * @param resultCode 选取文件或拍照的返回码
     * @param data 选取文件或拍照的返回结果
     */
    private void chooseBelow(int resultCode, Intent data) {
        Log.e("WangJ", "返回调用方法--chooseBelow");

        if (RESULT_OK == resultCode) {
            updatePhotos();

            if (data != null) {
                // 这里是针对文件路径处理
                Uri uri = data.getData();
                if (uri != null) {
                    Log.e("WangJ", "系统返回URI：" + uri.toString());
                    mUploadCallbackBelow.onReceiveValue(uri);
                } else {
                    mUploadCallbackBelow.onReceiveValue(null);
                }
            } else {
                // 以指定图像存储路径的方式调起相机，成功后返回data为空
                Log.e("WangJ", "自定义结果：" + imageUri.toString());
                mUploadCallbackBelow.onReceiveValue(imageUri);
            }
        } else {
            mUploadCallbackBelow.onReceiveValue(null);
        }
        mUploadCallbackBelow = null;
    }

    /**
     * Android API >= 21(Android 5.0) 版本的回调处理
     * @param resultCode 选取文件或拍照的返回码
     * @param data 选取文件或拍照的返回结果
     */
    private void chooseAbove(int resultCode, Intent data) {
        Log.e("WangJ", "返回调用方法--chooseAbove");

        if (RESULT_OK == resultCode) {
            updatePhotos();

            if (data != null) {
                // 这里是针对从文件中选图片的处理
                Uri[] results;
                Uri uriData = data.getData();
                if (uriData != null) {
                    results = new Uri[]{uriData};
                    for (Uri uri : results) {
                        Log.e("WangJ", "系统返回URI：" + uri.toString());
                    }
                    mUploadCallbackAboveL.onReceiveValue(results);
                } else {
                    mUploadCallbackAboveL.onReceiveValue(null);
                }
            } else {
                Log.e("WangJ", "自定义结果：" + imageUri.toString());
                mUploadCallbackAboveL.onReceiveValue(new Uri[]{imageUri});
            }
        } else {
            mUploadCallbackAboveL.onReceiveValue(null);
        }
        mUploadCallbackAboveL = null;
    }

    private void updatePhotos() {
        // 该广播即使多发（即选取照片成功时也发送）也没有关系，只是唤醒系统刷新媒体文件
        Intent intent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE);
        intent.setData(imageUri);
        sendBroadcast(intent);
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if (requestCode == REQUEST_CODE) {
            // 经过上边(1)、(2)两个赋值操作，此处即可根据其值是否为空来决定采用哪种处理方法
            if (mUploadCallbackBelow != null) {
                chooseBelow(resultCode, data);
            } else if (mUploadCallbackAboveL != null) {
                chooseAbove(resultCode, data);
            } else {
                Toast.makeText(this, "发生错误", Toast.LENGTH_SHORT).show();
            }
        }
    }



    @Override
    public boolean onKeyDown(int keyCode, KeyEvent event) {
        //如果按下的是回退键且历史记录里确实还有页面
        if ((keyCode == KeyEvent.KEYCODE_BACK) && webView.canGoBack()) {
            webView.goBack();
            return true;
        }
        return super.onKeyDown(keyCode, event);
    }


    @Override
    protected void onDestroy() {
        super.onDestroy();
        if (webView != null) {
            webView.setWebViewClient(null);
            webView.setWebChromeClient(null);
            webView.loadDataWithBaseURL(null, "", "text/html", "utf-8", null);
            webView.clearHistory();
//            ((ViewGroup) webView.getParent()).removeView(webView);
            webView.destroy();
            webView = null;
        }
    }

相关的全局变量：

  private Uri imageUri;
    private int REQUEST_CODE = 1234;
    private android.webkit.ValueCallback<Uri[]> mUploadCallbackAboveL;
    private android.webkit.ValueCallback<Uri> mUploadCallbackBelow;

这些代码大家可以直接拿去用的，亲测有效的，最后说一下这些代码可以拍照/选择图片然后回调显示到webview中的，至于将图片上传到服务器的问题，这些都是web端做上传操作

记得加一些相应的网络权限什么的。否则无法运行的。