Develop Reference

how to add the loading screen in to tab in android?

In my application i'm using two tabs one tab app contacts and other one is all contacts ,in application opening a one tab to other one it tack 10sce ,in that time how to add the same type of message like loading screen etc ,
plz tell me how to do that in my android app?
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.tabview);
final TabHost tabHost = getTabHost();
TextView txtTab = new TextView(this);
txtTab.setText("Mobell Contacts");
txtTab.setPadding(8, 9, 8, 9);
txtTab.setTextColor(Color.WHITE);
txtTab.setTextSize(14);
//txtTab.setTypeface(localTypeface1);
txtTab.setGravity(Gravity.CENTER_HORIZONTAL | Gravity.CENTER_VERTICAL);
TabHost.TabSpec spec;
// Initialize a TabSpec for each tab and add it to the TabHost
spec = tabHost.newTabSpec("tab1").setIndicator(txtTab).setContent(new Intent(this, ContactList.class).addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP));
tabHost.addTab(spec);
TextView txtTab1 = new TextView(this);
txtTab1.setText("All Contacts");
txtTab1.setPadding(8, 9, 8, 9);
txtTab1.setTextColor(Color.WHITE);
txtTab1.setTextSize(14);
//txtTab.setTypeface(localTypeface1);
txtTab1.setGravity(Gravity.CENTER_HORIZONTAL | Gravity.CENTER_VERTICAL);
TabHost.TabSpec spec1;
// Initialize a TabSpec for each tab and add it to the TabHost
spec1 = tabHost.newTabSpec("Tab2").setIndicator(txtTab1).setContent(new Intent(this, TabAct2.class).addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP));
tabHost.addTab(spec1);
tabHost.getTabWidget().getChildAt(0).setBackgroundColor(Color.parseColor("#101010"));
tabHost.getTabWidget().getChildAt(1).setBackgroundColor(Color.parseColor("#848284"));
tabHost.setOnTabChangedListener(new OnTabChangeListener() {
#Override
public void onTabChanged(String tabId) {
for(int i=0;i<tabHost.getTabWidget().getChildCount();i++)
{
tabHost.getTabWidget().getChildAt(i).setBackgroundColor(Color.parseColor("#848284"));
}
tabHost.getTabWidget().getChildAt(tabHost.getCurrentTab()).setBackgroundColor(Color.parseColor("#181418"));
}
});
}
}
see this code plz tell how to add the progressDialog when tab change one to other...

You can do something like this for showing progress -
public class MainActivity extends Activity {
Button b;
ProgressBar pb1;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
b = (Button)findViewById(R.id.button1);
pb1 = (ProgressBar)findViewById(R.id.progressBar1);
}
public void click(View v){
new Thread("thread1"){
public void run(){
try{
for(int i=0; i<10; i++)
{
Thread.sleep(4000);
pb1.setProgress(i*10);
}
}
catch(InterruptedException e){
e.printStackTrace();
}
};
}.start();
}
}
In case you want to show a message, use Spinner.

Show progressbar on center of screen using visibility on/off

Since you are using TabActivity (and you haven't posted your work around yet), so, I am guessing you have used
TabActivity
Activity (for both tabs)
Now, when you switch from one tab to another you are actually calling Activity. So, just create an AsyncTask in the Activity which takes time to load. For instance,
class ContactLoadAsync extends AsyncTask<Void, Void, Void> {
ProgressDialog pd;
#Override
protected void onPreExecute()
pd = ProgressDialog.show(YourActivity.this, "title", "loading", true, false);
}
#Override
protected Void doInBackground(Void... params) {
// call your contact loading functions here
return null;
}
#Override
protected void onPostExecute(Void result) {
pd.dismiss();
}
}
And, call this AsyncTask in onCreate() of your Activity.
new ContactLoadAsync().execute();

android setting default tab in tab-activity

android TabActivity launches the FragmentActivity associated with the first tab added in the sequence before setting tabhost.setCurretnTab(4);
#Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.tab_main);
try
{
DataSource.ObjContext = this.getApplicationContext();
DataSource.ObjTabBarActivity = this;
DataSource.ObjSharedPreferences = this.getSharedPreferences("com.example", Context.MODE_PRIVATE);
if(NetworkStat)
{
new LocationUpdates(this);
this.setTabs();
}
else
{
Log.d("in TabBarActivity", "Network failure");
Toast.makeText(this.getApplicationContext(), "Network failure", Toast.LENGTH_SHORT).show();
}
}
catch(Exception ex)
{
}
}
private void setTabs()
{
addTab("Clubs", R.drawable.tab_clubs, FragmentStackClubsActivity.class);
addTab("Events", R.drawable.tab_events, FragmentStackEventsActivity.class);
addTab("Rate", R.drawable.tab_rate, FragmentStackRateActivity.class);
addTab("Loyalty", R.drawable.tab_loyalty, FragmentStackLoyaltyActivity.class);
addTab("Setting", R.drawable.tab_settings, FragmentStackSettingsActivity.class);
if(DataSource.ObjSharedPreferences.getString(DataSource.LOGIN_TAG, "false").equalsIgnoreCase("false"))
{
getTabHost().setCurrentTab(4);
DataSource.disableTabBar();
}
else
{
}
}
private void addTab(String labelId, int drawableId, Class<?> c)
{
TabHost tabHost = getTabHost();
Intent intent = new Intent(this, c);
TabHost.TabSpec spec = tabHost.newTabSpec("tab" + labelId);
View tabIndicator = LayoutInflater.from(this).inflate(R.layout.tab_indicator, getTabWidget(), false);
TextView title = (TextView) tabIndicator.findViewById(R.id.title);
title.setText(labelId);
ImageView icon = (ImageView) tabIndicator.findViewById(R.id.icon);
icon.setImageResource(drawableId);
spec.setIndicator(tabIndicator);
spec.setContent(intent);
tabHost.addTab(spec);
}
but the problem is that it starts the first tab initially and then switches to 5th tab in this way a thread gets started from the first tab and that's what i don't want i.e if the user is not logged in i wanna redirect the user to login(settings) tab.
any help in this regard is highly appreciated......

public void setCurrentTab (int index)
public void setCurrentTabByTag (String tag)
you can like this
if (isNotLogin) {
tabHost.setCurrentTabByTag("Setting");
}
after addTab()
http://developer.android.com/reference/android/widget/TabHost.html#setCurrentTab(int)

Change tab host intent

I am working on an application that pulls information from the internet. The information is sorted into categories, sub-categories and, sub-sub-categories.
My main view is a TabHost view (the parent categories) with 3 tabs, and the initial list view (the sub-categories). When the user clicks an item in the list view it calls a new list view that displays the child-categories of the chosen sub-category.
I got everything to work except that when a sub category is chosen the tabHost view disappears and the sub-sub-categories are displayed in full screen.
How can I change the intent of the tab to display the child-categories of the sub-category?
EDIT: here is my code, sorry I didn't post it earlier!
My Main view which contains the tabhost:
public class tabwidget extends TabActivity {
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.tabs);
Resources res = getResources(); // Resource object to get Drawables
TabHost tabHost = getTabHost(); // The activity TabHost
TabHost.TabSpec spec; // Resusable TabSpec for each tab
Intent intent; // Reusable Intent for each tab
// Create an Intent to launch an Activity for the tab (to be reused)
intent = new Intent().setClass(this, category1Activity.class);
// Initialize a TabSpec for each tab and add it to the TabHost
spec = tabHost.newTabSpec("category1").setIndicator("Category1",
res.getDrawable(R.drawable.ic_tab_category1))
.setContent(intent);
tabHost.addTab(spec);
// Do the same for the other tabs
intent = new Intent().setClass(this, category2Activity.class);
spec = tabHost.newTabSpec("category2").setIndicator("Category2",
res.getDrawable(R.drawable.ic_tab_category2))
.setContent(intent);
tabHost.addTab(spec);
intent = new Intent().setClass(this, category3Activity.class);
spec = tabHost.newTabSpec("category3").setIndicator("Category3",
res.getDrawable(R.drawable.ic_tab_category3))
.setContent(intent);
tabHost.addTab(spec);
tabHost.setCurrentTab(0);
}
When the application is started the alcohol tab is selected by default. This is the category1Acitivity listview with the onlclick action that calls the child-categories:
listView.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
//Toast.makeText(getApplicationContext(), "You clicked item at position"+position,
//Toast.LENGTH_SHORT).show();
Toast.makeText(getApplicationContext(), "Loading "+((TextView) view.findViewById(R.id.categoryname)).getText(),
Toast.LENGTH_SHORT).show();
Intent i = new Intent(category1Activity.this, subCategoryActivity.class);
i.putExtra("id", ((TextView) view.findViewById(R.id.message)).getText());
i.putExtra("catname", ((TextView) view.findViewById(R.id.categoryname)).getText());
i.putExtra("parentcatid", "0");
startActivityForResult(i, ACTIVITY_CREATE);
}
});
The listviews are generated by the category Id which is sent to the server pulls results from the database.

You will have to use ActivityGroups to do that.
http://ericharlow.blogspot.com/2010/09/experience-multiple-android-activities.html
http://united-coders.com/nico-heid/use-android-activitygroup-within-tabhost-to-show-different-activity
However, keep in mind that ActivityGroups are deprecated in ICS.
EDIT: This is my implementation of ActivityGroup:
Activity in a tab:
Intent i = new Intent(v.getContext(), SearchList.class);
i.putExtra("search", search);
View view = SearchActivityGroup.group.getLocalActivityManager()
.startActivity("SearchList", i
.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP))
.getDecorView();
// Again, replace the view
SearchActivityGroup.group.replaceView(view);
ActivityGroup:
package nl.dante.SuperDeals;
import java.util.ArrayList;
import android.app.ActivityGroup;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
public class SearchActivityGroup extends ActivityGroup {
View rootView;
// Keep this in a static variable to make it accessible for all the nested
// activities, lets them manipulate the view
public static SearchActivityGroup group;
// Need to keep track of the history if you want the back-button to work
// properly, don't use this if your activities requires a lot of memory.
private ArrayList<View> history;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
/*
* this.history = new ArrayList<View>(); group = this;
*
* // Start the root activity within the group and get its view View
* view = getLocalActivityManager().startActivity("Search", new
* Intent(this,Search.class) .addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP))
* .getDecorView();
*
* // Replace the view of this ActivityGroup replaceView(view);
*/
}
#Override
protected void onResume() {
super.onResume();
this.history = new ArrayList<View>();
group = this;
// Start the root activity within the group and get its view
View view = getLocalActivityManager().startActivity("Search", new Intent(this, Search.class).addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP)).getDecorView();
// Replace the view of this ActivityGroup
replaceView(view);
}
public void replaceView(View v) {
// Adds the old one to history
if (history.size() == 0) {
if (rootView != null) {
history.add(rootView);
rootView = null;
}
}
history.add(v);
// Changes this Groups View to the new View.
setContentView(v);
}
public void back() {
try {
if (history.size() > 0) {
if (history.size() == 1) {
rootView = history.get(0);
Toasts.ToastImageView(this, "Druk nogmaals BACK om af te sluiten", R.drawable.power_64_off, "red");
}
history.remove(history.size() - 1);
setContentView(history.get(history.size() - 1));
} else {
finish();
}
if (history.size() < 3) {
// Tabhost.bannerImage2.setImageResource(0);
Tabhost.banner.setBackgroundResource(R.drawable.gradient_blue);
}
if (history.size() == 2) {
Tabhost.bannerImage1.setImageResource(R.drawable.sorteer_btn);
}
} catch (Exception ex) {
}
}
public int getHistorySize() {
return history.size();
}
#Override
public void onBackPressed() {
try {
SearchActivityGroup.group.back();
} catch (Exception ex) {
}
return;
}
}

Android: Starting a new activity from TabHost disables onClick

I have a TabActivity with 4 tabs. When clicking on a button within one of the tabs and starting a new Activity (a new Activity not within the TabHost), the new Activity does not register OnClick(). The new Activity can't even show a Toast wich makes me think the TabHost is somehow blocking the ui?
When putting the Activity as one of the Tabs the OnClick works just fine.
Any ideas what the reason for this is?
I've included 3 classes:
1) The TabActivity
2) The Activity in a tab that starts:
3) The new Activity that cannot register OnClick()
1) TabActivity:
public class OverView extends TabActivity {
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_overview);
/** TabHost will have Tabs */
TabHost tabHost = (TabHost)findViewById(android.R.id.tabhost);
/** TabSpec used to create a new tab.
* By using TabSpec only we can able to setContent to the tab.
* By using TabSpec setIndicator() we can set name to tab. */
/** tid1 is firstTabSpec Id. Its used to access outside. */
TabSpec Search = tabHost.newTabSpec("tid1");
TabSpec AllArtists = tabHost.newTabSpec("tid1");
TabSpec Favorites = tabHost.newTabSpec("tid1");
TabSpec About = tabHost.newTabSpec("tid1");
/** TabSpec setIndicator() is used to set name for the tab. */
Search. setIndicator("Search");
AllArtists. setIndicator("AllArtists");
Favorites. setIndicator("Favorites");
About. setIndicator("About");
/** TabSpec setContent() is used to set content for a particular tab. */
Search.setContent (new Intent(this, Search.class));
AllArtists.setContent (new Intent(this, AllArtists.class));
Favorites.setContent (new Intent(this, Favorites.class));
About.setContent (new Intent(this, About.class));
/** Add tabSpec to the TabHost to display. */
tabHost.addTab(Search);
tabHost.addTab(AllArtists);
tabHost.addTab(Favorites);
tabHost.addTab(About);
}
}
2) AllArtists (The Activity within the tab. Clicking a list item starts a new Activity):
public class AllArtists extends Activity {
// Debug
private final String TAG = this.getClass().getSimpleName();
// XML
EditText searchBox;
ListView listView;
// Adapter
ListAdapter listAdapter;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_allartists);
listAdapter = new ListAdapter(this, null);
// XML
listView = (ListView)findViewById(R.id.allartists_listview);
searchBox = (EditText)findViewById(R.id.allartists_searchbox);
listView.setAdapter(listAdapter);
listView.setFastScrollEnabled(true);
listView.setOnItemClickListener(new OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
String memberID = (String)listAdapter.getID(position).toString();
if (!memberID.equals("HEADER")){
Log.d(TAG, "Jumping to Artists.class");
Intent intentArtist = new Intent (AllArtists.this, Artist.class);
intentArtist.putExtra("ID", memberID);
startActivity(intentArtist);
}
}
});
}
3) Artist (The new Activity started. This class does not register OnClick):
public class Artist extends Activity implements OnClickListener{
// Debug
private final String TAG = this.getClass().getSimpleName();
// XML
Button favorite_btn;
LinearLayout tel;
LinearLayout mob;
LinearLayout email;
LinearLayout www1;
LinearLayout www2;
LinearLayout add;
TextView name_tv;
TextView tel_tv;
TextView mob_tv;
TextView email_tv;
TextView www_tv1;
TextView www_tv2;
// Strings
String memberID;
String sirName;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_artist);
Toast.makeText(this, "OK, your in Activity_Artist..", Toast.LENGTH_SHORT);
// XML
favorite_btn = (Button)findViewById(R.id.artist_ib_favorite);
tel = (LinearLayout)findViewById(R.id.artist_tel_container);
mob = (LinearLayout)findViewById(R.id.artist_mob_container);
email = (LinearLayout)findViewById(R.id.artist_email_container);
www1 = (LinearLayout)findViewById(R.id.artist_www_container1);
www2 = (LinearLayout)findViewById(R.id.artist_www_container2);
add = (LinearLayout)findViewById(R.id.artist_add_container);
name_tv = (TextView)findViewById(R.id.artist_tv_name);
tel_tv = (TextView)findViewById(R.id.artist_tel_dynamic);
mob_tv = (TextView)findViewById(R.id.artist_mob_dynamic);
email_tv = (TextView)findViewById(R.id.artist_email_dynamic);
www_tv1 = (TextView)findViewById(R.id.artist_www_dynamic1);
www_tv2 = (TextView)findViewById(R.id.artist_www_dynamic2);
// OnClickListeners
favorite_btn.setOnClickListener(this);
tel.setOnClickListener(this);
mob.setOnClickListener(this);
email.setOnClickListener(this);
www1.setOnClickListener(this);
www2.setOnClickListener(this);
add.setOnClickListener(this);
// Code here to get memberID for fillContent()
}
private void fillContent(String memberID) throws JSONException {
// Code here to fill the TextViews etc with content from the DataBase.
}
#Override
public void onClick(View v) {
switch (v.getId()){
case R.id.artist_ib_favorite:
Toast.makeText(this, "onClick", Toast.LENGTH_SHORT);
Log.d(TAG, "Neo is attempting to insert member into favorites");
MyDB db = new MyDB(this);
db.insertFavorite(memberID, sirName);
break;
case R.id.artist_tel_container:
break;
case R.id.artist_mob_container:
Log.d(TAG, "OMG CLICKED THE MOBILE!");
break;
case R.id.artist_email_container:
break;
case R.id.artist_www_container1:
break;
case R.id.artist_add_container:
break;
}
}
Thanks ;)

For Toast you need to call show.
Toast.makeText(this, "OK, your in Activity_Artist..", Toast.LENGTH_SHORT).show();
For the click Operation on anything apart from Button you need to define
android:clickable="true"
in the layout.

Solved this. In the layout there was an (empty) GridView at the bottom of the layout set to android:layout_height="fill_parent" wich stole the touchevent.
The weird part about this is that when putting the exact same activity with the exact same XML inside a tab, the onClick() worked fine.

Dismiss Android PopupWindow when switching to a new Tab in TabActivity?

I have a MapActivity as one of four tabs in a TabActivity. This MapActivity can launch a PopupWindow that is a legend. The PopupWindow remains on the screen, on top of the map, until the "Show Legend" button is clicked again (back and forth, etc.).
The problem is that, when a user switches to another tab, the PopupWindow remains persistent over the view.
I've tried implementing the onPause() method in the MapActivity class, and dismissing it from there. The application force closes with this method in place.
Any help? Thanks!
EDIT: Here's some of my code:
In the MainActivity, which establishes the four tabs:
Resources res = getResources(); // Resource object to get Drawables
TabHost tabHost = getTabHost(); // The activity TabHost
TabHost.TabSpec spec; // Reusable TabSpec for each tab
Intent intent; // Reusable Intent for each tab
// Create an Intent to launch an Activity for the tab (to be reused)
intent = new Intent().setClass(this, FirstActivity.class);
// Initialize a TabSpec for each tab and add it to the TabHost
spec = tabHost.newTabSpec("game").setIndicator("First",
res.getDrawable(R.drawable.ic_tab_game))
.setContent(intent);
tabHost.addTab(spec);
// Do the same for the other tabs
intent = new Intent().setClass(this, SecondActivity.class);
spec = tabHost.newTabSpec("alerts").setIndicator("Second",
res.getDrawable(R.drawable.ic_tab_alert))
.setContent(intent);
tabHost.addTab(spec);
intent = new Intent().setClass(this, MapActivity.class);
spec = tabHost.newTabSpec("map").setIndicator("Map",
res.getDrawable(R.drawable.ic_tab_map))
.setContent(intent);
tabHost.addTab(spec);
intent = new Intent().setClass(this, LastActivity.class);
spec = tabHost.newTabSpec("experience").setIndicator("Last",
res.getDrawable(R.drawable.ic_tab_experience))
.setContent(intent);
tabHost.addTab(spec);
tabHost.setCurrentTab(0);
Now in my MapActivity class (which extends MapActivity):
// Declare the Legend PopupWindow
mapLegendInflater = (LayoutInflater) MapActivity.this
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
mapLegendPopupLayout = mapLegendInflater.inflate(
R.layout.maptablegendpopuplayout, null, false);
mapLegendPopup = new PopupWindow(mapLegendPopupLayout,
(int) (0.45 * getApplicationContext().getResources()
.getDisplayMetrics().widthPixels),
(int) (0.33 * getApplicationContext().getResources()
.getDisplayMetrics().heightPixels), true);
mapLegendPopup.setFocusable(false);
mapLegendPopup.setOutsideTouchable(true);
Boolean legendIsShown = false;
mapLegendButton = (Button) findViewById(R.id.buttonMapLegend);
mapLegendButton.setOnClickListener(mapLegendListener);
private OnClickListener mapLegendListener = new OnClickListener() {
public void onClick(View v) {
// Launch or dismiss the map legend popup
if (legendIsShown) {
mapLegendPopup.dismiss();
mapLegendButton.getBackground().clearColorFilter();
legendIsShown = false;
} else {
mapLegendPopup.showAtLocation(
findViewById(R.id.buttonMapLegend), Gravity.TOP
| Gravity.LEFT, 8,
(int) (0.23 * getApplicationContext().getResources()
.getDisplayMetrics().heightPixels));
mapLegendButton.getBackground().setColorFilter(
new LightingColorFilter(0xFFFFFFFF, 0xFFAA0000));
// mapLegendButton.getBackground().setColorFilter(0xFFFFFF00,
// PorterDuff.Mode.MULTIPLY);
legendIsShown = true;
}
}
};
I hope this provides an idea of where I'm at. Everything works perfectly well on the Map tab. It's only when you have the Legend shown and switch tabs that it is still displayed on other views.

I know you said that implementing onPause() did not work for you, but I tried it and implementing onResume() and onPause() in the MapActivity does work for me.
I needed to do a View.post(new Runnable() { ... }) in onResume() since I could not recreate the popupWindow during the onResume() so I had to schedule it to occur immediately afterwards:
package com.esri.android.tabdemo;
import android.app.Activity;
import android.content.Context;
import android.os.Bundle;
import android.view.Gravity;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.LinearLayout;
import android.widget.PopupWindow;
import android.widget.TextView;
import android.widget.Toast;
public class MapActivity extends Activity
{
private TextView textView = null;
private PopupWindow popupWindow = null;
#Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
textView = new TextView(this);
textView.setText("Hello World from MapActivity");
setContentView(textView);
}
#Override
protected void onPause()
{
super.onPause();
if (popupWindow != null)
{
popupWindow.dismiss();
popupWindow = null;
}
}
#Override
protected void onResume()
{
super.onResume();
final Context context = this;
textView.post(
new Runnable()
{
public void run()
{
popupWindow = new PopupWindow(context);
LinearLayout linearLayout = new LinearLayout(context);
linearLayout.setOrientation(LinearLayout.VERTICAL);
Button button = new Button(context);
button.setText("Hello");
button.setOnClickListener(new OnClickListener()
{
public void onClick(View v)
{
Toast.makeText(context, "Hello", Toast.LENGTH_SHORT).show();
}
});
linearLayout.addView(button);
popupWindow.setContentView(linearLayout);
popupWindow.showAtLocation(linearLayout, Gravity.LEFT | Gravity.BOTTOM, 10, 10);
popupWindow.update(256, 64);
}
}
);
}
}

You can init your popupwindown like this:
mapLegendPopup = new PopupWindow(this);
mapLegendPopup.setContentView (itemizeView);
mapLegendPopup.setBackgroundDrawable (new BitmapDrawable()); // key is here
mapLegendPopup.setWidth ((int) (0.45 * getApplicationContext().getResources()
.getDisplayMetrics().widthPixels));
mapLegendPopup.setHeight((int) (0.33 * getApplicationContext().getResources()
.getDisplayMetrics().heightPixels));
mapLegendPopup.setFocusable(false);
mapLegendPopup.setOutsideTouchable(true);

You should manage your Dialogs by using the onCreateDialog() method, as recommended by the framework.
That way your Dialog will become part of your Activity and it will do it by itself.
If you really don't want to use that (I can't see any reason why that would be the case, but still), you can use the setOwnerActivity() on your Dialog to assign it to your Activity.