Add progress bars

- indeterminate progress bar for authentication stuff
- determinate progress bar for page loading

(The second one was added so you can see that there is something happening after selecting your account)

mobile/res/layout/dialog_progressbar.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<ProgressBar xmlns:android="http://schemas.android.com/apk/res/android"
+	android:id="@+id/progressBarLoading"
+	style="?android:attr/progressBarStyleLarge"
+	android:layout_width="wrap_content"
+	android:layout_height="wrap_content"/>

mobile/src/com/cradle/iitc_mobile/DeviceAccountLogin.java

@@ -72,6 +72,11 @@ public class DeviceAccountLogin implements AccountManagerCallback<Bundle> {
         mWebView = webView;
         mAccountManager = AccountManager.get(activity);
         mAccountAdapter = new AccountAdapter();
+
+        mProgressbar = new AlertDialog.Builder(mActivity)
+                .setCancelable(false)
+                .setView(mActivity.getLayoutInflater().inflate(R.layout.dialog_progressbar, null))
+                .create();
     }
 
     private void displayAccountList() {
@@ -89,10 +94,6 @@ public class DeviceAccountLogin implements AccountManagerCallback<Bundle> {
     }
 
     private void startAuthentication() {
-        mProgressbar = new AlertDialog.Builder(mActivity)
-                .setCancelable(false)
-                .setView(mActivity.getLayoutInflater().inflate(R.layout.dialog_progressbar, null))
-                .create();
         mProgressbar.show();
 
         mAccountManager.getAuthToken(mAccount, mAuthToken, null, mActivity, this, null);
@@ -107,7 +108,6 @@ public class DeviceAccountLogin implements AccountManagerCallback<Bundle> {
 
     @Override
     public void run(AccountManagerFuture<Bundle> value) {
-        if (mProgressbar != null)
         mProgressbar.hide();
 
         try {

mobile/src/com/cradle/iitc_mobile/IITC_Mobile.java

@@ -2,7 +2,13 @@ package com.cradle.iitc_mobile;
 
 import java.io.IOException;
 
-import com.cradle.iitc_mobile.R;
+import android.app.ActionBar;
+import android.app.Activity;
+import android.content.Context;
+import android.content.Intent;
+import android.content.SharedPreferences;
+import android.content.SharedPreferences.OnSharedPreferenceChangeListener;
+import android.content.res.Configuration;
 import android.location.Location;
 import android.location.LocationListener;
 import android.location.LocationManager;
@@ -13,17 +19,12 @@ import android.os.Bundle;
 import android.os.Handler;
 import android.os.StrictMode;
 import android.preference.PreferenceManager;
-import android.app.ActionBar;
-import android.app.Activity;
-import android.content.Context;
-import android.content.Intent;
-import android.content.SharedPreferences;
-import android.content.SharedPreferences.OnSharedPreferenceChangeListener;
-import android.content.res.Configuration;
 import android.util.Log;
 import android.view.Menu;
 import android.view.MenuItem;
+import android.view.Window;
 import android.view.WindowManager;
+import android.webkit.WebChromeClient;
 import android.webkit.WebView;
 import android.widget.Toast;
 
@@ -47,12 +48,25 @@ public class IITC_Mobile extends Activity {
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
 
+        requestWindowFeature(Window.FEATURE_PROGRESS);
+
         // TODO build an async task for url.openStream() in IITC_WebViewClient
         StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder()
                 .permitAll().build();
         StrictMode.setThreadPolicy(policy);
         setContentView(R.layout.activity_main);
         iitc_view = (IITC_WebView) findViewById(R.id.iitc_webview);
+        iitc_view.setWebChromeClient(new WebChromeClient()
+        {
+            @Override
+            public void onProgressChanged(WebView view, int newProgress) {
+                super.onProgressChanged(view, newProgress);
+
+                // maximum for newProgress is 100
+                // maximum for setProgress is 10,000
+                setProgress(newProgress * 100);
+            }
+        });
 
         // fetch actionbar, set display flags, title and enable home button
         actionBar = this.getActionBar();