Question

我使用了两个片段的tabhost。一个片段用于列表，另一个用于webview。从那个片段我必须从库上传文件。以下是我的webview片段。

public class AppleFragment extends Fragment{

private static final String TAG = "SocialActivityFragment";
//protected static final int FILECHOOSER_RESULTCODE = 0;
WebView browser;
static String cookieString;
ProgressBar Pbar;
HashMap<String, String> headerMap = new HashMap<String, String>();
 private ValueCallback<Uri> mUploadMessage;  
 final static int FILECHOOSER_RESULTCODE=1;  

 @Override
public void onActivityResult(int requestCode, int resultCode,Intent intent) {  
  if(requestCode==FILECHOOSER_RESULTCODE)  
  {  
   if (null == mUploadMessage) return;  
            Uri result = intent == null || resultCode != Activity.RESULT_OK ? null  
                    : intent.getData();  
            mUploadMessage.onReceiveValue(result);  
            mUploadMessage = null;  
  }
  }  
@SuppressLint({ "NewApi", "SetJavaScriptEnabled" })
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

    /** Creating array adapter to set data in listview */
    //ArrayAdapter<String> adapter = new ArrayAdapter<String>(getActivity().getBaseContext(), R.layout.social_activities_layout, apple_versions);
    LayoutInflater layoutInflater = (LayoutInflater) getActivity()
         .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
       View layout = layoutInflater.inflate(R.layout.social_layout, null);
    Pbar = (ProgressBar) layout.findViewById(R.id.pB1);
    String strResponse = util.makeWebCall("http://google.com");

    DefaultHttpClient mClient = util.getClient();


    Cookie sessionInfo;
    List<Cookie> cookies = mClient.getCookieStore().getCookies();
    if (! cookies.isEmpty()){
        CookieSyncManager.createInstance(getActivity().getApplicationContext());
        CookieManager cookieManager = CookieManager.getInstance();

        for(Cookie cookie : cookies){
                sessionInfo = cookie;
                cookieString = sessionInfo.getName() + "=" + Sessions.getPhpSessid(getActivity().getApplicationContext()) + "; domain=" + sessionInfo.getDomain();
                cookieManager.setCookie("http://youornot.com/social/", cookieString);
                CookieSyncManager.getInstance().sync();
                //Toast.makeText(getApplicationContext(), cookieString, Toast.LENGTH_LONG).show();
        }
}

AlertDialogManager alert=new AlertDialogManager();
ConnectionDetector cd=new ConnectionDetector(getActivity().getApplicationContext());
if(!cd.isConnectedToInternet())
{
    alert.showAlertDialog(getActivity(), "Error..!", "You have not Connected to Internet", true);
}

browser=(WebView)layout.findViewById(R.id.webBrowser);
  // WebView browser = new WebView(SocialActivity.this);

WebSettings settings = browser.getSettings();

browser.setScrollBarStyle(browser.OVER_SCROLL_IF_CONTENT_SCROLLS);

WebViewClient wvClient = new WebViewClient();
browser.setWebViewClient(wvClient);
browser.getSettings().setJavaScriptEnabled(true);
browser.getSettings().setJavaScriptCanOpenWindowsAutomatically(true);


browser.setWebChromeClient(new WebChromeClient() {

     @SuppressWarnings("unused")
    public void openFileChooser(ValueCallback<Uri> uploadMsg) {  

         mUploadMessage = uploadMsg;  
         Intent i = new Intent(Intent.ACTION_GET_CONTENT);  
         i.addCategory(Intent.CATEGORY_OPENABLE);  
         i.setType("*/*");  
         getActivity().startActivityForResult(Intent.createChooser(i,"File Chooser"), FILECHOOSER_RESULTCODE);  

        }

     // For Android 3.0+
        @SuppressWarnings("unused")
        public void openFileChooser( ValueCallback uploadMsg, String acceptType ) {
        mUploadMessage = uploadMsg;
        Intent i = new Intent(Intent.ACTION_GET_CONTENT);
        i.addCategory(Intent.CATEGORY_OPENABLE);
        i.setType("*/*");
        getActivity().startActivityForResult(
        Intent.createChooser(i, "File Browser"),
        FILECHOOSER_RESULTCODE);
        }

     //For Android 4.1
        @SuppressWarnings("unused")
        public void openFileChooser(ValueCallback<Uri> uploadMsg, String acceptType, String capture){
            mUploadMessage = uploadMsg;  
            Intent i = new Intent(Intent.ACTION_GET_CONTENT);  
            i.addCategory(Intent.CATEGORY_OPENABLE);  
            i.setType("*/*");  
            getActivity().startActivityForResult( Intent.createChooser( i, "File Chooser" ),FILECHOOSER_RESULTCODE );

        }

    public void onProgressChanged(WebView view, int progress) 
       {
       if(progress < 100 && Pbar.getVisibility() == ProgressBar.GONE){
           Pbar.setVisibility(ProgressBar.VISIBLE);
           //txtview.setVisibility(View.VISIBLE);
       }
       Pbar.setProgress(progress);
       if(progress == 100) {
           Pbar.setVisibility(ProgressBar.GONE);
          // txtview.setVisibility(View.GONE);
       }
    }
});

headerMap.put("Cookie", cookieString);
browser.setOnTouchListener(new View.OnTouchListener() {
    @Override
    public boolean onTouch(View v, MotionEvent event) {

        switch (event.getAction()) {
            case MotionEvent.ACTION_DOWN:
            case MotionEvent.ACTION_UP:
                //The key is this line. 
                v.requestFocusFromTouch();  
                break;
        }               
        return false;
    }
});
browser.loadUrl("http://google.com", headerMap);


    return layout;//super.onCreateView(inflater, container, savedInstanceState);
}

@Override
public void onStart() {
        super.onStart();

}

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setHasOptionsMenu(true);
    getActivity().getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN);
}
@Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
    // TODO Auto-generated method stub
    super.onCreateOptionsMenu(menu, inflater);
    inflater.inflate(R.menu.web_menu, menu);
}

@SuppressLint("NewApi")
@Override
public boolean onOptionsItemSelected(MenuItem item) {
   // handle item selection
   switch (item.getItemId()) {
      case R.id.refresh:
          browser.reload();
         // browser.loadUrl("http://google.com", headerMap);
         return true;
      default:
         return super.onOptionsItemSelected(item);
   }
}   
}

每当我上传文件时，webview根本没有响应。当我关闭应用程序时，webview也没有响应。那么我如何在tabview片段中的webview上传文件。

提前致谢。

Answer 1

公共类AppleFragment扩展了Fragment {

  WebView webView;

  //make HTML upload button work in Webview   
  private ValueCallback<Uri> mUploadMessage;
  private final static int FILECHOOSER_RESULTCODE = 1;

  @Override  
  public void onActivityResult(int requestCode, int resultCode, Intent intent) {  
       if(requestCode==FILECHOOSER_RESULTCODE)  
        {  
            if (null == mUploadMessage) return;  
                     Uri result = intent == null || resultCode != getActivity().RESULT_OK ? null  
                             : intent.getData();  
                     mUploadMessage.onReceiveValue(result);  
                     mUploadMessage = null;  
        }
   }  

  @Override
  public View onCreateView(LayoutInflater inflater, ViewGroup container,
              Bundle savedInstanceState) {

        View view = inflater.inflate(R.layout.fragment_layout_web, container, false);

        // Web View
        webView = (WebView) view.findViewById(R.id.webView1);

        webView.getSettings().setJavaScriptEnabled(true);
        webView.getSettings().setLoadWithOverviewMode(true);
        webView.getSettings().setUseWideViewPort(true);
        webView.getSettings().setBuiltInZoomControls(true);

        webView.setWebChromeClient(new WebChromeClient(){

             //The undocumented magic method override  
             //Eclipse will swear at you if you try to put @Override here  
             // For Android 3.0+
             public void openFileChooser(ValueCallback<Uri> uploadMsg) {  

                 mUploadMessage = uploadMsg;  
                 Intent i = new Intent(Intent.ACTION_GET_CONTENT);  
                 i.addCategory(Intent.CATEGORY_OPENABLE);  
                 i.setType("image/*");  
                 getActivity().startActivityForResult(Intent.createChooser(i,"File Chooser"), FILECHOOSER_RESULTCODE);  

                }

             // For Android 3.0+
                public void openFileChooser(ValueCallback uploadMsg, String acceptType ) {
                    mUploadMessage = uploadMsg;
                    Intent i = new Intent(Intent.ACTION_GET_CONTENT);
                    i.addCategory(Intent.CATEGORY_OPENABLE);
                    i.setType("*/*");
                    getActivity().startActivityForResult(Intent.createChooser(i, "File Browser"),FILECHOOSER_RESULTCODE);
                }

             //For Android 4.1
                public void openFileChooser(ValueCallback<Uri> uploadMsg, String acceptType, String capture){
                    mUploadMessage = uploadMsg;  
                    Intent i = new Intent(Intent.ACTION_GET_CONTENT);  
                    i.addCategory(Intent.CATEGORY_OPENABLE);  
                    i.setType("image/*");  
                    getActivity().startActivityForResult( Intent.createChooser( i, "File Chooser" ), FILECHOOSER_RESULTCODE );

                }
            });

        webView.loadUrl(yourUrl);

        return view;
  }

}

Answer 2

公共类FragmentWeb扩展了Fragment {

@覆盖
public void onActivityResult（int requestCode，int resultCode，Intent intent）{

      if(requestCode==FILECHOOSER_RESULTCODE)  
         {  

                if (null == this.mUploadMessage) {
                    return;
                }

               Uri result=null;

               try{
                    if (resultCode != getActivity().RESULT_OK) {
                        result = null;
                    } else {
                        // retrieve from the private variable if the intent is null
                        result = intent == null ? mCapturedImageURI : intent.getData(); 
                    } 
                }
                catch(Exception e)
                {
                    Toast.makeText(getActivity().getApplicationContext(), "activity :"+e, Toast.LENGTH_LONG).show();
                }

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

。。。。。 }

并且您还需要在MainActivity中提出以下代码

公共类MainActivity扩展了Activity {

@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
   super.onActivityResult(requestCode, resultCode, data);
}

。。。。 }

如何从android中的片段webview上传文件？

2 个答案: