webview 本地上传文件

参考http://blog.csdn.net/zhtsuc/article/details/49154099

直接上代码

 

public class MainActivity1 extends Activity {

 

private WebView webView;

private WebSettings wvsetting;

private ImageView news_iv;

 

   public ValueCallback<Uri> mUploadMessage;

    public ValueCallback<Uri[]> mUploadMessageForAndroid5;

 

    public final static int FILECHOOSER_RESULTCODE = 1;

    public final static int FILECHOOSER_RESULTCODE_FOR_ANDROID_5 = 2;

 

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

WebView webView = (WebView) this

.findViewById(R.id.news_content_webview);

 

webView = (WebView) this.findViewById(R.id.news_content_webview);

news_iv = (ImageView) this.findViewById(R.id.news_iv);

wvsetting = webView.getSettings();

// 设置是否允许通过file

// url加载的Javascript可以访问其他的源，包括其他的文件和http,https等其他的源。这个设置在JELLY_BEAN以前的版本默认是允许，在JELLY_BEAN及以后的版本中默认是禁止的

try {

if (Build.VERSION.SDK_INT >= 16) {

Class<?> clazz = webView.getSettings().getClass();

Method method = clazz.getMethod(

"setAllowUniversalAccessFromFileURLs", boolean.class);

if (method != null) {

method.invoke(webView.getSettings(), true);

}

}

} catch (IllegalArgumentException e) {

e.printStackTrace();

} catch (NoSuchMethodException e) {

e.printStackTrace();

} catch (IllegalAccessException e) {

e.printStackTrace();

} catch (InvocationTargetException e) {

e.printStackTrace();

}

// 内嵌图片时加载缓慢的问题

if (Build.VERSION.SDK_INT >= 19) {

wvsetting.setLoadsImagesAutomatically(true);

} else {

wvsetting.setLoadsImagesAutomatically(false);

}

// 屏幕适配滚动问题

wvsetting

.setUserAgentString("Mozilla/5.0 (Linux; U; Android 4.4.2; zh-cn;CmsTop Cloud Mobile) AppleWebKit/537.36 (KHTML, like Gecko)Version/4.0  Safari/537.36");

wvsetting.setJavaScriptEnabled(true);// 支持js

wvsetting.setSupportZoom(false);

wvsetting.setAllowFileAccess(true);

wvsetting.setDomStorageEnabled(true);

wvsetting.setSupportMultipleWindows(true);

wvsetting.setPluginState(WebSettings.PluginState.ON);

wvsetting.setLoadWithOverviewMode(true);

wvsetting.setUseWideViewPort(true);

wvsetting.setDefaultTextEncodingName("utf-8");

wvsetting.setCacheMode(WebSettings.LOAD_NO_CACHE);

wvsetting.setAllowFileAccess(true);

webView.setWebChromeClient(new MyWebChromeClient());

webView.setWebViewClient(new WebViewClient() {  

  

    @Override  

    public boolean shouldOverrideUrlLoading(WebView view, String url) {  

        view.loadUrl(url);  

        return true;  

    }  

}); 

webView.loadUrl("https://jinshuju.net/f/oRYFvm");

}

 

 

public class MyWebChromeClient extends WebChromeClient {

 

 //扩展浏览器上传文件

        //3.0++版本

        public void openFileChooser(ValueCallback<Uri> uploadMsg, String acceptType) {

            openFileChooserImpl(uploadMsg);

        }

 

        //3.0--版本

        public void openFileChooser(ValueCallback<Uri> uploadMsg) {

            openFileChooserImpl(uploadMsg);

        }

 

        public void openFileChooser(ValueCallback<Uri> uploadMsg, String acceptType, String capture) {

            openFileChooserImpl(uploadMsg);

        }

 

        // For Android > 5.0

        public boolean onShowFileChooser (WebView webView, ValueCallback<Uri[]> uploadMsg, WebChromeClient.FileChooserParams fileChooserParams) {

            openFileChooserImplForAndroid5(uploadMsg);

            return true;

        }

 

}

 

 

private void openFileChooserImpl(ValueCallback<Uri> uploadMsg) {

        mUploadMessage = uploadMsg;

        Intent i = new Intent(Intent.ACTION_GET_CONTENT);

        i.addCategory(Intent.CATEGORY_OPENABLE);

        i.setType("image/*");

        startActivityForResult(Intent.createChooser(i, "File Chooser"), FILECHOOSER_RESULTCODE);

    }

 

    private void openFileChooserImplForAndroid5(ValueCallback<Uri[]> uploadMsg) {

        mUploadMessageForAndroid5 = uploadMsg;

        Intent contentSelectionIntent = new Intent(Intent.ACTION_GET_CONTENT);

        contentSelectionIntent.addCategory(Intent.CATEGORY_OPENABLE);

        contentSelectionIntent.setType("image/*");

 

        Intent chooserIntent = new Intent(Intent.ACTION_CHOOSER);

        chooserIntent.putExtra(Intent.EXTRA_INTENT, contentSelectionIntent);

        chooserIntent.putExtra(Intent.EXTRA_TITLE, "Image Chooser");

 

        startActivityForResult(chooserIntent, FILECHOOSER_RESULTCODE_FOR_ANDROID_5);

    }

    

    

    @Override

    protected void onActivityResult(int requestCode, int resultCode,Intent intent) {

        if (requestCode == FILECHOOSER_RESULTCODE) {

            if (null == mUploadMessage)

                return;

            Uri result = intent == null || resultCode != RESULT_OK ? null: intent.getData();

            mUploadMessage.onReceiveValue(result);

            mUploadMessage = null;

 

        } else if (requestCode == FILECHOOSER_RESULTCODE_FOR_ANDROID_5){

            if (null == mUploadMessageForAndroid5)

                return;

            Uri result = (intent == null || resultCode != RESULT_OK) ? null: intent.getData();

            if (result != null) {

                mUploadMessageForAndroid5.onReceiveValue(new Uri[]{result});

            } else {

                mUploadMessageForAndroid5.onReceiveValue(new Uri[]{});

            }

            mUploadMessageForAndroid5 = null;

        }

    }

    

 

}