AgentWeb嵌套h5 上传图片文件

随着现在混合开发非常的普遍，很多html界面上会进行图片和文件等的上传，界面嵌套进android后，会发现无法调出手机本地图片，这个时候需要我们主动进入图库调用图片反馈给页面。主要步骤就是重写WebChromeClient中的onShowFileChooser方法

当前AgentWeb，或者是原生的webView设置自己写的WebViewClient

    private ValueCallback mValueCallback;
    private ValueCallback mFilePathCallback;
    private final static int RESULT_CODE = 10000;

 mAgentWeb = AgentWeb.with(this)
                .setAgentWebParent(linWeb, new LinearLayout.LayoutParams(-1, -1))
                .useDefaultIndicator()
                .setWebChromeClient(mWebChromeClient)
                .setWebViewClient(mWebViewClient)
                .interceptUnkownUrl()
                .createAgentWeb()
                .ready()
                .go(url);

下面就是WebViewClient了，目前市面上android版本应该大部分都是5.0以上了，不过为了保证万无一失记得要适配多个android版本，所以要写多个方法

private WebChromeClient mWebChromeClient = new WebChromeClient() {
        @Override
        public void onProgressChanged(WebView view, int newProgress) {
        }
        // 3.0以下版本
        public void openFileChooser(ValueCallback valueCallback) {
            mValueCallback = valueCallback;
            openImageActivity();
        }
        //3.0以上版本
        public void openFileChooser(ValueCallback valueCallback, String acceptType) {
            mValueCallback = valueCallback;
            openImageActivity();
        }
        //4.1以上版本
        public void openFileChooser(ValueCallback valueCallback, String acceptType,  String capture) {
            mValueCallback = valueCallback;
            openImageActivity();
        }
        // 5.0以上版本  主要版本
        @Override
        public boolean onShowFileChooser(WebView webView, ValueCallback filePathCallback, WebChromeClient.FileChooserParams fileChooserParams) {
            mFilePathCallback = filePathCallback;
            openImageActivity();
            return true;
        }

    };
    private void openImageActivity() {
        Intent i = new Intent(Intent.ACTION_GET_CONTENT);
        i.addCategory(Intent.CATEGORY_OPENABLE);
        i.setType("image/*");
        //调起手机图库
        startActivityForResult(Intent.createChooser(i, "Image Chooser"),     RESULT_CODE);
    }

    //处理手机返回的图片
    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if (requestCode == RESULT_CODE) { 
            if (null == mValueCallback && null == mFilePathCallback) return;
            Uri result = data == null || resultCode != RESULT_OK ? null : data.getData();
            if (mFilePathCallback != null) {
                onActivityResultAboveL(requestCode, resultCode, data);
            } else if (mValueCallback != null) {
                mValueCallback.onReceiveValue(result);
                mValueCallback = null;
            }
        }
    }



    @TargetApi(Build.VERSION_CODES.LOLLIPOP)
    private void onActivityResultAboveL(int requestCode, int resultCode, Intent intent) {
        if (requestCode != RESULT_CODE || mFilePathCallback == null)
            return;
        Uri[] results = null;
        if (resultCode == Activity.RESULT_OK) {
            if (intent != null) {
                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)};
            }
        }
        mFilePathCallback.onReceiveValue(results);
        mFilePathCallback = null;
    }

到此应该就能顺利上传图片了，上传文件的话，也是类似这种方式。