app.java

package com.myurl.myapp;

import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.net.Uri;
import android.os.Bundle;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.ProgressDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.view.KeyEvent;
import android.webkit.ValueCallback;
import android.webkit.WebView;
import android.webkit.WebChromeClient;
import android.webkit.WebViewClient;
import android.provider.Settings;



public class MainActivity extends Activity {

     private WebView wv;  
     
    //make HTML upload button work in Webview   
     private ValueCallback<Uri> mUploadMessage;  
     private final static int FILECHOOSER_RESULTCODE=1;
    
     @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;        
      }  
     }  
     
     //Check if user is online
     public boolean isOnline() {
         ConnectivityManager cm = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
         NetworkInfo netInfo = cm.getActiveNetworkInfo();
         if (netInfo != null && netInfo.isConnected()) {
             return true;
         }
         return false;
     }
     //if not online show alertdialog with settings button
     public void showNoConnectionDialog(Context ctx1) {
         final Context ctx = ctx1;
         AlertDialog.Builder builder = new AlertDialog.Builder(ctx);
         builder.setCancelable(true);
         builder.setMessage(R.string.no_connection);
         builder.setTitle(R.string.no_connection_title);
         builder.setPositiveButton(R.string.settings, new DialogInterface.OnClickListener() {
             public void onClick(DialogInterface dialog, int which) {
                 ctx.startActivity(new Intent(Settings.ACTION_WIRELESS_SETTINGS));
             }
         });
         builder.setNegativeButton(R.string.cancel, new DialogInterface.OnClickListener() {
             public void onClick(DialogInterface dialog, int which) {
                 return;
             }
         });
         builder.setOnCancelListener(new DialogInterface.OnCancelListener() {
             public void onCancel(DialogInterface dialog) {
                 return;
             }
         });
         builder.setCancelable(false);
         builder.show();
     }
     
     public void onBackPressed (){

    	    if (wv.isFocused() && wv.canGoBack()) {
    	            wv.goBack();       
    	    }
    	    else {
    	            super.onBackPressed();
    	            finish();
    	    }
    	}
     
     
     //catching back key to take back if history exists doesnot finish Activity
     @Override
     public boolean onKeyDown(int keyCode, KeyEvent event) {
         if ((keyCode == KeyEvent.KEYCODE_BACK) && wv.canGoBack()) {
             wv.goBack();
             return true;
         }
         if (keyCode == KeyEvent.KEYCODE_BACK) {
             moveTaskToBack(true);
             return true;
         }
         return super.onKeyDown(keyCode, event);
     }

     
     //supress lint coz eclipse cries over javascript enabled
    @SuppressLint("SetJavaScriptEnabled") @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        
        //if not online then show NO CONNECTION Dialog
        if(!isOnline()) {
      	   showNoConnectionDialog(MainActivity.this);
      	}
        
        //webview
        wv = new WebView(this);

        //loadurl
        wv.loadUrl(getString(R.string.siteurl));
        
        
        //Enable JavaScript
        wv.getSettings().setJavaScriptEnabled(true);
        
        //Zoom
        wv.getSettings().setBuiltInZoomControls(true);
        wv.getSettings().setSupportZoom(true);
        
        
        
        //progressdialog
        final ProgressDialog pd = ProgressDialog.show(this, "", getString(R.string.loading), true);
        pd.setCanceledOnTouchOutside(false);
        

        wv.setWebViewClient(new WebViewClient(){
            //hide progressdialog when page loads completely
        	@Override
            public void onPageFinished(WebView view, String url) {
                if(pd.isShowing() && pd!=null)
                {
                pd.dismiss();
                }
            }
        });
        
        
        wv.setWebChromeClient(new WebChromeClient()  {  	
        	
        	  	// For Android 3.0+
            public void openFileChooser( ValueCallback<Uri> uploadMsg, String acceptType ) {  
                mUploadMessage = uploadMsg;  
                Intent i = new Intent(Intent.ACTION_GET_CONTENT);  
                i.addCategory(Intent.CATEGORY_OPENABLE);  
                i.setType("image/*");  
                MainActivity.this.startActivityForResult( Intent.createChooser( i, getString(R.string.fileselect) ), MainActivity.FILECHOOSER_RESULTCODE ); 
                }

            // For Android < 3.0
            public void openFileChooser( ValueCallback<Uri> uploadMsg ) {
                openFileChooser( uploadMsg, "" );
                }
            
            // For Android > 4.1
            public void openFileChooser(ValueCallback<Uri> uploadMsg, String acceptType, String capture){

                openFileChooser( uploadMsg, "" );
                }        
   					});
          setContentView(wv);      
      }
}

is this working for webview the gallery and camera?

many thanks,
fernando