android studio 打包webview 5.0文件上传问题

之前在eclipse上打包的项目在5.0的手机上正常，这俩天项目转到android studio 上，5.0之上的系统文件上传反而无反应，之后根据网络资料整理解决，代码如下

// 5.0 +文件上传@Overridepublic boolean onShowFileChooser(WebView webView, ValueCallback filePathCallback, WebChromeClient.FileChooserParams fileChooserParams) {if (mUploadMessages != null) {//mUploadMessages.onReceiveValue(null);//这行代码会导致文件只能上传一次，需注意mUploadMessages = null;}mUploadMessages = filePathCallback;Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);if (takePictureIntent.resolveActivity(mMainActivity.getPackageManager()) != null) {// Create the File where the photo should goFile photoFile = null;try {photoFile = createImageFile();takePictureIntent.putExtra("PhotoPath", mCameraPhotoPath);} catch (IOException ex) {// Error occurred while creating the FileLog.e("WebViewSetting", "Unable to create Image File", ex);}// Continue only if the File was successfully createdif (photoFile != null) {mCameraPhotoPath = "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("image/*");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, "Image Chooser");chooserIntent.putExtra(Intent.EXTRA_INITIAL_INTENTS, intentArray);mMainActivity.startActivityForResult(chooserIntent, mMainActivity.INPUT_FILE_REQUEST_CODE);return true;}

然后是返回接收

/**     * 返回文件选择     */    @TargetApi(Build.VERSION_CODES.JELLY_BEAN)    @Override    protected void onActivityResult(int requestCode, int resultCode,                                    Intent intent) {        super.onActivityResult(requestCode, resultCode, intent);        if (requestCode == FILECHOOSER_RESULTCODE) {            mUploadMessage = chromeClient.getmUploadMessage();            if (null == mUploadMessage) return;            Uri result = intent == null || resultCode != RESULT_OK ? null                    : intent.getData();            mUploadMessage.onReceiveValue(result);            mUploadMessage = null;        }else  if(requestCode == INPUT_FILE_REQUEST_CODE){            mUploadMessages = chromeClient.getmUploadMessage2();            String mCameraPhotoPath = chromeClient.getCameraPhotoPath();            if (null == mUploadMessages) return;            // 5.0的回调            Uri[] results = null;            // Check that the response is a good one            if (resultCode == Activity.RESULT_OK) {                if (intent == null) {                    // If there is not data, then we may have taken a photo                    if (mCameraPhotoPath != null) {                        results = new Uri[]{Uri.parse(mCameraPhotoPath)};                    }                } else {                    String dataString = intent.getDataString();                    ClipData clipData = intent.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)};                    }                }            }            mUploadMessages.onReceiveValue(results);            mUploadMessages = null;        } else {            super.onActivityResult(requestCode, resultCode, intent);            return;        }    }

其他例如4.1+的系统版本（包含4.4），部分机型也是无法上传文件，尚未解决，解决后更新，如有了解的朋友望不吝赐教。

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