因为这个app地嵌入h5做导航,所以需要调用android的交互进行获取定位信息和其他一些功能,做的效果是H5调Android打电话以及调用android手机相册选择图片,现在总结下:
一.打电话以及定位:
1.定义h5调用的名称:

webView.addJavascriptInterface(new RailwayJavascriptInterface(), "xxx");

2.定义对象,h5调用xxx.对象里的方法即可,比如xxx.getGPS():

private class RailwayJavascriptInterface {
        @JavascriptInterface
        public String getGPS() {
        //h5获取当前位置
            LocationInfo info = LocationUtil.getIntance(BrowserActivity.this).getLocationInfo();
            JSONObject jsonObject = new JSONObject();
            try {
                jsonObject.put("lng", info.getLongitude() * Math.pow(10, 6));
                jsonObject.put("lat", info.getLatitude() * Math.pow(10, 6));
            } catch (JSONException e) {
                e.printStackTrace();
            }
            return jsonObject.toString();
        }

        @JavascriptInterface
        public void goBack() {
        //销毁当前activity
            finish();
        }
        @JavascriptInterface
        public void callTaxPhone(String tel) {
            //拨打司机电话
            Log.d("lwp","tel:"+tel);
            if (tel == null || tel.length() == 0) {
                ToastUtil.toastShort(BrowserActivity.this, "电话号码为空!");
            } else {
                Intent intent = new Intent();
                intent.setAction(Intent.ACTION_DIAL);
//                        intent.setAction(Intent.ACTION_CALL_BUTTON);
                intent.setData(Uri.parse("tel:" + tel));
                startActivity(intent);
            }
        }

    }
···

解决sdk小于19的漏洞问题:

if (android.os.Build.VERSION.SDK_INT < 19) {
            webView.removeJavascriptInterface("searchBoxJavaBridge_");
            webView.removeJavascriptInterface("accessibility");
            webView.removeJavascriptInterface("accessibilityTraversal");
            webView.removeJavascriptInterface("xxx");
        }

二.选择相册或者拍照显示在h5的图片框上:
1.定义webchromeclient:

private WebChromeClient webChromeClient = new WebChromeClient() {

        //For Android  >= 4.1
        public void openFileChooser(ValueCallback<Uri> valueCallback, String acceptType, String capture) {
            uploadMessage = valueCallback;
            //调用系统相机或者相册
            showDialog();
        }

        //For Android  >= 5.0
        @Override
        public boolean onShowFileChooser(WebView webView, ValueCallback<Uri[]> filePathCallback,
                                         FileChooserParams fileChooserParams) {
            uploadMessageAboveL = filePathCallback;
            showDialog();
            return true;
        }

        //获取网页标题
        @Override
        public void onReceivedTitle(WebView view, String title) {
            super.onReceivedTitle(view, title);
            Log.i("ansen", "网页标题:" + title);
        }

    };

2.设置WebChromeClient:

webView.setWebChromeClient(webChromeClient);

3.显示拍照还是选择图库:

private void showDialog() {
        View view = LayoutInflater.from(this).inflate(R.layout.item_photo_menu, null);
        mBottomDialog = new Dialog(this, R.style.BottomDialog);
        //初始化
        initDialog(view);
        mBottomDialog.setContentView(view);
        mBottomDialog.setCanceledOnTouchOutside(false);
        Window dialogWindow = mBottomDialog.getWindow();
        dialogWindow.setGravity(Gravity.BOTTOM);
        WindowManager.LayoutParams lp = dialogWindow.getAttributes(); // 获取对话框当前的参数值
        lp.width = getResources().getDisplayMetrics().widthPixels; // 宽度;
        view.measure(0, 0);
        lp.height = view.getMeasuredHeight();

        lp.alpha = 9f; // 透明度
        dialogWindow.setAttributes(lp);
        mBottomDialog.show();
    }
    ···
  //拍照
      private void takePhoto() {
        StringBuilder fileName = new StringBuilder();
        Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
        fileName.append(UUID.randomUUID()).append("_upload.png");
        File path = getExternalFilesDir(Environment.DIRECTORY_PICTURES);
        File tempFile = new File(path, fileName.toString());
        if (!path.exists()) {
            path.mkdirs();
        }
    //    LogUtils.e("tempFile=" + tempFile);
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
        //解决android 7.0拍照闪退
            ContentValues contentValues = new ContentValues(1);
            contentValues.put(MediaStore.Images.Media.DATA, tempFile.getAbsolutePath());
            Uri uri = getContentResolver().insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI,contentValues);
            intent.putExtra(MediaStore.EXTRA_OUTPUT, uri);

        } else {
            Uri uri = Uri.fromFile(tempFile);
            intent.putExtra(MediaStore.EXTRA_OUTPUT, uri);
        }
        mCurrentPhotoPath = tempFile.getAbsolutePath();
        startActivityForResult(intent, 100);
    }
    ···
    //图片比例压缩
       private Bitmap getimage(String srcPath) {
        BitmapFactory.Options newOpts = new BitmapFactory.Options();
        // 开始读入图片,此时把options.inJustDecodeBounds 设回true了
        newOpts.inJustDecodeBounds = true;
        Bitmap bitmap = BitmapFactory.decodeFile(srcPath, newOpts);// 此时返回bm为空

        newOpts.inJustDecodeBounds = false;
        int w = newOpts.outWidth;
        int h = newOpts.outHeight;
        // 现在主流手机比较多是800*480分辨率,所以高和宽我们设置为
        float hh = 400f;// 这里设置高度为800f
        float ww = 240f;// 这里设置宽度为480f
        // 缩放比。由于是固定比例缩放,只用高或者宽其中一个数据进行计算即可
        int be = 1;// be=1表示不缩放
        if (w > h && w > ww) {// 如果宽度大的话根据宽度固定大小缩放
            be = (int) (newOpts.outWidth / ww);
        } else if (w < h && h > hh) {// 如果高度高的话根据宽度固定大小缩放
            be = (int) (newOpts.outHeight / hh);
        }
        if (be <= 0)
            be = 1;
        newOpts.inSampleSize = be;// 设置缩放比例
        // 重新读入图片,注意此时已经把options.inJustDecodeBounds 设回false了
        bitmap = BitmapFactory.decodeFile(srcPath, newOpts);
        return compressImage(bitmap);// 压缩好比例大小后再进行质量压缩
    }
//图片质量压缩
    private Bitmap compressImage(Bitmap image) {

        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        image.compress(Bitmap.CompressFormat.JPEG, 100, baos);// 质量压缩方法,这里100表示不压缩,把压缩后的数据存放到baos中
        int options = 100;
        while (baos.toByteArray().length / 1024 > 1000) { // 循环判断如果压缩后图片是否大于1000kb,大于继续压缩
            baos.reset();// 重置baos即清空baos
            image.compress(Bitmap.CompressFormat.JPEG, options, baos);// 这里压缩options%,把压缩后的数据存放到baos中
            options -= 10;// 每次都减少10
        }
        ByteArrayInputStream isBm = new ByteArrayInputStream(baos.toByteArray());// 把压缩后的数据baos存放到ByteArrayInputStream中
        Bitmap bitmap = BitmapFactory.decodeStream(isBm, null, null);// 把ByteArrayInputStream数据生成图片
        return bitmap;
    }

//选择图片或者拍照完成的回调,最后调用value传给h5
@Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if (requestCode == 100 || requestCode == 200) {
            //取消拍照或者图片选择时,返回null,否则<input file> 就是没有反应
            if (resultCode != RESULT_OK) {
                if (uploadMessage != null) {
                    uploadMessage.onReceiveValue(null);
                }
                if (uploadMessageAboveL != null) {
                    uploadMessageAboveL.onReceiveValue(null);
                }
                return;
            }
            //拍照成功和选取照片时
            if (resultCode == RESULT_OK) {
                Uri imageUri = null;
                switch (requestCode) {
                    case 200:
                        if (data != null) {
                            //进行图片的压缩
                            String path = getAbsoluteImagePath(data.getData());
                            Log.d("lwp","path:"+path);
                            Bitmap bitmap = getimage(path);
                            //转成url
                            imageUri = Uri.parse(MediaStore.Images.Media.insertImage(
                                    getContentResolver(), bitmap, null, null));
//
//                            imageUri = data == null || resultCode != RESULT_OK ? null
//                                    : data.getData();
                        }
                        break;
                    case 100:
                        //相机
                        if (!TextUtils.isEmpty(mCurrentPhotoPath)) {
//                            File file = new File(mCurrentPhotoPath);
//                            imageUri = Uri.fromFile(file);
                            //进行图片的压缩
                            Bitmap bitmap1 = getimage(mCurrentPhotoPath);
                            Log.d("lwp","mCurrentPhotoPath:"+mCurrentPhotoPath);
                            //转成url
                            imageUri = Uri.parse(MediaStore.Images.Media.insertImage(
                                    getContentResolver(), bitmap1, null, null));
                        }
                        break;
                }
                Log.e("imgurl:",imageUri.toString());
             //   tranformUriToFile(imageUri);
                //上传文件
                if (uploadMessage != null) {
                    uploadMessage.onReceiveValue(imageUri);
                }
                if (uploadMessageAboveL != null) {
                    uploadMessageAboveL.onReceiveValue(new Uri[]{imageUri});
                }
            }
        }
    }
    //value定义
    private ValueCallback<Uri> uploadMessage;
    private ValueCallback<Uri[]> uploadMessageAboveL;

问题:至于h5的图片在app上没显示这样解决:

webView.getSettings().setBlockNetworkImage(false); // 解决图片不显示
     webView.getSettings().setJavaScriptEnabled(true);
     webView.getSettings().setJavaScriptCanOpenWindowsAutomatically(true);
       if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
         webView.getSettings().setMixedContentMode(WebSettings.MIXED_CONTENT_ALWAYS_ALLOW);
     }