android 开发 web页面调取相册相机 上传图片

private Context context = this;
private ValueCallback<Uri> mUploadMessage;// 表单的数据信息
private ValueCallback<Uri[]> mUploadCallbackAboveL;
private Uri imageUri;
private WebView activity_webview;
private final static int FILECHOOSER_RESULTCODE = 1;// 表单的结果回调</span>

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    initDate();
    initInfo();
}

private void initDate() {
    activity_webview = (WebView) findViewById(R.id.activity_webview);
    loadUrl("http://192.168.1.67/xinfupin/ab_web/web_renzheng/rz_user/" + FuPinAppliction.UserPF.readUserId() + "/" + FuPinAppliction.UserPF.readSession_Key());
    activity_webview.setWebChromeClient(new WebChromeClient() {
        @Override
        public boolean onShowFileChooser(WebView webView,
                                         ValueCallback<Uri[]> filePathCallback,
                                         FileChooserParams fileChooserParams) {
            mUploadCallbackAboveL = filePathCallback;
            take();
            return true;
        }

        public void openFileChooser(ValueCallback<Uri> uploadMsg) {
            mUploadMessage = uploadMsg;
            take();
        }

        public void openFileChooser(ValueCallback<Uri> uploadMsg, String acceptType) {
            mUploadMessage = uploadMsg;
            take();
        }

        public void openFileChooser(ValueCallback<Uri> uploadMsg, String acceptType, String capture) {
            mUploadMessage = uploadMsg;
            take();
        }
    });
    activity_webview.getSettings().setSaveFormData(false);

    activity_webview.clearFormData();
}

    private void take() {
        File imageStorageDir = new File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES), "MyApp");
        // Create the storage directory if it does not exist
        if (!imageStorageDir.exists()) {
            imageStorageDir.mkdirs();
        }
        File file = new File(imageStorageDir + File.separator + "IMG_" + String.valueOf(System.currentTimeMillis()) + ".jpg");
        imageUri = Uri.fromFile(file);

        final List<Intent> cameraIntents = new ArrayList<Intent>();
        final Intent captureIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
        final PackageManager packageManager = getPackageManager();
        final List<ResolveInfo> listCam = packageManager.queryIntentActivities(captureIntent, 0);
        for (ResolveInfo res : listCam) {
            final String packageName = res.activityInfo.packageName;
            final Intent i = new Intent(captureIntent);
            i.setComponent(new ComponentName(res.activityInfo.packageName, res.activityInfo.name));
            i.setPackage(packageName);
            i.putExtra(MediaStore.EXTRA_OUTPUT, imageUri);
            cameraIntents.add(i);

        }
        Intent i = new Intent(Intent.ACTION_GET_CONTENT);
        i.addCategory(Intent.CATEGORY_OPENABLE);
        i.setType("image/*");
        Intent chooserIntent = Intent.createChooser(i, "Image Chooser");
        chooserIntent.putExtra(Intent.EXTRA_INITIAL_INTENTS, cameraIntents.toArray(new Parcelable[]{}));
        this.startActivityForResult(chooserIntent, FILECHOOSER_RESULTCODE);
    }

    @Override
    public void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if (requestCode == FILECHOOSER_RESULTCODE) {
            if (null == mUploadMessage && null == mUploadCallbackAboveL) return;
            Uri result = data == null || resultCode != RESULT_OK ? null : data.getData();
            if (mUploadCallbackAboveL != null) {
                onActivityResultAboveL(requestCode, resultCode, data);
            } else if (mUploadMessage != null) {
                Log.e("result", result + "");
                if (result == null) {
                    mUploadMessage.onReceiveValue(imageUri);
                    mUploadMessage = null;

                } else {
                    mUploadMessage.onReceiveValue(result);
                    mUploadMessage = null;
                }


            }
        } else if (resultCode == 10) {
//            Intent i = new Intent(context, FarmerTechnologyActivity.class);
//            setResult(10, i);
//            finish();
        }
    }

    @TargetApi(Build.VERSION_CODES.JELLY_BEAN)
    @SuppressWarnings("null")
    private void onActivityResultAboveL(int requestCode, int resultCode, Intent data) {
        if (requestCode != FILECHOOSER_RESULTCODE
                || mUploadCallbackAboveL == null) {
            return;
        }

        Uri[] results = null;
        if (resultCode == Activity.RESULT_OK) {
            if (data == null) {
                results = new Uri[]{imageUri};
            } else {
                String dataString = data.getDataString();
                ClipData clipData = data.getClipData();

                if (clipData != null) {
                    results = new Uri[clipData.getItemCount()];
                    for (int i = 0; i < clipData.getItemCount(); i++) {
                        ClipData.Item item = clipData.getItemAt(i);
                        results[i] = item.getUri();
                    }
                }

                if (dataString != null)
                    results = new Uri[]{Uri.parse(dataString)};
            }
        }
        if (results != null) {
            mUploadCallbackAboveL.onReceiveValue(results);
            mUploadCallbackAboveL = null;
        } else {
            results = new Uri[]{imageUri};
            mUploadCallbackAboveL.onReceiveValue(results);
            mUploadCallbackAboveL = null;
        }

        return;
    }