Database Users

Help with ViewPager and Fragments

Hi all!
I've been developing an app that uses various things from my college and centralizes them in one app. I've made the app with two tabs - one for current students and one for prospective students. I would like to add the functionality of swiping between the two activities, and I saw that to do that, I want to convert my currentStudents and prospectiveStudents activities into fragments.
I have a couple of questions.
First, I don't quite understand how to accomplish converting the activities into fragments.
Second, I don't quite understand how to implement the viewPager effect.
If anyone can assist me in doing this, that'd be great. I've read through a lot of guides, but those guides are written to reflect other apps and it's pretty confusing.
Here is my MainActivity:
Code:
package com.andrew.obu;
import android.app.TabActivity;
import android.content.Intent;
import android.graphics.Color;
import android.os.Bundle;
import android.widget.TabHost;
import android.widget.TabHost.OnTabChangeListener;
import android.widget.TabHost.TabSpec;
public class MainActivity extends TabActivity {
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
TabHost tabHost = getTabHost();
TabSpec cstudents = tabHost.newTabSpec("Current Students");
cstudents.setIndicator("Students");
Intent cstudentsIntent = new Intent(this, CurrentStudents.class);
cstudents.setContent(cstudentsIntent);
TabSpec prospects = tabHost.newTabSpec("Prospectives");
prospects.setIndicator("Prospectives");
Intent prospectsIntent = new Intent(this, ProspectiveStudents.class);
prospects.setContent(prospectsIntent);
tabHost.addTab(cstudents);
tabHost.addTab(prospects);
tabHost.getTabWidget().getChildAt(0).setBackgroundColor(Color.BLACK);
tabHost.getTabWidget().getChildAt(1).setBackgroundColor(Color.BLACK);
tabHost.setOnTabChangedListener(new OnTabChangeListener() {
@Override
public void onTabChanged(String arg0) {
TabHost tabHost = getTabHost();
setTabColor(tabHost);
}
});
setTabColor(tabHost);
}
public void setTabColor(TabHost tabhost) {
for(int i=0;i<tabhost.getTabWidget().getChildCount();i++)
tabhost.getTabWidget().getChildAt(i).setBackgroundColor(Color.BLACK); //unselected
if(tabhost.getCurrentTab()==0)
tabhost.getTabWidget().getChildAt(tabhost.getCurrentTab()).setBackgroundColor(Color.rgb(34, 34, 34)); //1st tab selected
else
tabhost.getTabWidget().getChildAt(tabhost.getCurrentTab()).setBackgroundColor(Color.rgb(34, 34, 34)); //2nd tab selected
}
}
And my code for the CurrentStudents Activity
Code:
package com.andrew.obu;
import android.os.Bundle;
import android.app.Activity;
import android.app.ListActivity;
import android.content.Context;
import android.content.Intent;
import android.content.res.Resources;
import android.graphics.Color;
import android.graphics.PorterDuff;
import android.graphics.drawable.Drawable;
import android.view.LayoutInflater;
import android.view.MenuItem;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
public class CurrentStudents extends ListActivity {
private static final int MENU_ABOUT = 0;
private static final int MENU_CONTACT = 1;
int counter;
Button banner, email, moodle, jupiter, staff, calendar, athletics, news, prosp;
TextView display;
Drawable drawable;
@Override
public boolean onCreateOptionsMenu(android.view.Menu menu)
{
menu.add(0, MENU_ABOUT, 0, "About");
menu.add(0, MENU_CONTACT, 0, "Contact Me");
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item){
switch (item.getItemId()) {
case MENU_ABOUT:
doSomething();
return true;
case MENU_CONTACT:
doSomethingElse();
return true;
}
return super.onOptionsItemSelected(item);
}
private void doSomethingElse() {
Intent intent = new Intent(getBaseContext(), Contact.class);
startActivity(intent);
}
private void doSomething() {
Intent intent = new Intent(getBaseContext(), About.class);
startActivity(intent);}
/*@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.cstudents);*/
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
String[] choose = getResources().getStringArray(R.array.cstudents_array);
ListView lv = getListView();
LayoutInflater lf;
View headerView;
lf = this.getLayoutInflater();
headerView = (View)lf.inflate(R.layout.cstudents, null, false);
lv.addHeaderView(headerView, null, false);
lv.setTextFilterEnabled(true);
lv.setBackgroundColor(Color.WHITE);
setListAdapter(new ArrayAdapter<String>(this, R.layout.list_content, choose));
}
@Override
protected void onListItemClick(ListView l, View v, int position, long id) {
Intent intent;
switch(position) {
default:
case 0 :
intent = new Intent(this, Bannerdisclaimer.class);
break;
case 2 :
intent = new Intent(this, Emailwebview.class);
break;
case 3 :
intent = new Intent(this, Moodlewebview.class);
break;
case 4 :
intent = new Intent(this, Jupiterwebview.class);
break;
case 5 :
intent = new Intent(this, Staffwebview.class);
break;
case 6 :
intent = new Intent(this, Calendar.class);
break;
case 7 :
intent = new Intent(this, Athleticswebview.class);
break;
case 8 :
intent = new Intent(this, Newswebview.class);
//intent7.putExtra("KEY_SELECTED_INDEX", position);
//startActivity(intent7);
break;
}
startActivity(intent);
};
}
//Resources res = getResources();
//drawable = res.getDrawable(R.drawable.bannera);
/*final Context context1 = this;
banner = (Button) findViewById(R.id.BannerButton);
banner.getBackground().setColorFilter(Color.rgb(148, 148, 148), PorterDuff.Mode.MULTIPLY);
banner.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Intent myWebView = new Intent(context1, Bannerwebview.class);
startActivity(myWebView);
}
});
final Context context2 = this;
email = (Button) findViewById(R.id.EmailButton);
email.getBackground().setColorFilter(Color.rgb(148, 148, 148), PorterDuff.Mode.MULTIPLY);
email.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Intent myWebView = new Intent(context2, Emailwebview.class);
startActivity(myWebView);
}
});
final Context context3 = this;
moodle = (Button) findViewById(R.id.MoodleButton);
moodle.getBackground().setColorFilter(Color.rgb(148, 148, 148), PorterDuff.Mode.MULTIPLY);
moodle.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Intent myWebView = new Intent(context3, Moodlewebview.class);
startActivity(myWebView);
}
});
final Context context4 = this;
jupiter = (Button) findViewById(R.id.JupiterButton);
jupiter.getBackground().setColorFilter(Color.rgb(148, 148, 148), PorterDuff.Mode.MULTIPLY);
jupiter.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Intent myWebView = new Intent(context4, Jupiterwebview.class);
startActivity(myWebView);
}
});
final Context context5 = this;
staff = (Button) findViewById(R.id.StaffButton);
staff.getBackground().setColorFilter(Color.rgb(148, 148, 148), PorterDuff.Mode.MULTIPLY);
staff.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Intent myWebView = new Intent(context5, Staffwebview.class);
startActivity(myWebView);
}
});
final Context context = this;
calendar = (Button) findViewById(R.id.CalendarButton);
calendar.getBackground().setColorFilter(Color.rgb(148, 148, 148), PorterDuff.Mode.MULTIPLY);
calendar.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Intent intent = new Intent(context, Calendar.class);
startActivity(intent);
}
});
final Context context6 = this;
athletics = (Button) findViewById(R.id.AthleticsButton);
athletics.getBackground().setColorFilter(Color.rgb(148, 148, 148), PorterDuff.Mode.MULTIPLY);
athletics.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Intent intent = new Intent(context6, Athleticswebview.class);
startActivity(intent);
}
});
final Context context7 = this;
news = (Button) findViewById(R.id.NewsButton);
news.getBackground().setColorFilter(Color.rgb(148, 148, 148), PorterDuff.Mode.MULTIPLY);
news.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Intent intent = new Intent(context7, Newswebview.class);
startActivity(intent);
}
});*/
And my code for the ProspectiveStudents activity
Code:
package com.andrew.obu;
import android.net.Uri;
import android.os.Bundle;
import android.app.Activity;
import android.app.ListActivity;
import android.content.Context;
import android.content.Intent;
import android.content.res.Resources;
import android.graphics.Color;
import android.graphics.PorterDuff;
import android.graphics.drawable.Drawable;
import android.view.LayoutInflater;
import android.view.MenuItem;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
public class ProspectiveStudents extends ListActivity
{
private static final int MENU_ABOUT = 0;
private static final int MENU_CONTACT = 1;
int counter;
Button banner, email, moodle, jupiter, staff, calendar, athletics, news, prosp;
TextView display;
Drawable drawable;
@Override
public boolean onCreateOptionsMenu(android.view.Menu menu)
{
menu.add(0, MENU_ABOUT, 0, "About");
menu.add(0, MENU_CONTACT, 0, "Contact Me");
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item){
switch (item.getItemId()) {
case MENU_ABOUT:
doSomething();
return true;
case MENU_CONTACT:
doSomethingElse();
return true;
}
return super.onOptionsItemSelected(item);
}
private void doSomethingElse() {
Intent intent = new Intent(getBaseContext(), Contact.class);
startActivity(intent);
}
private void doSomething() {
Intent intent = new Intent(getBaseContext(), About.class);
startActivity(intent);}
/*@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.cstudents);*/
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
String[] choose = getResources().getStringArray(R.array.pstudents_array);
ListView lv = getListView();
LayoutInflater lf;
View headerView;
lf = this.getLayoutInflater();
headerView = (View)lf.inflate(R.layout.cstudents, null, false);
lv.addHeaderView(headerView, null, false);
lv.setTextFilterEnabled(true);
lv.setBackgroundColor(Color.WHITE);
setListAdapter(new ArrayAdapter<String>(this, R.layout.list_content, choose));
}
@Override
protected void onListItemClick(ListView l, View v, int position, long id) {
Intent intent;
switch(position) {
default:
case 0 :
intent = new Intent(Intent.ACTION_VIEW, Uri.parse("http://www.okbu.edu/admissions/onlineapp.html"));
break;
case 2 :
intent = new Intent(this, Majors.class);
break;
case 3 :
intent = new Intent(Intent.ACTION_VIEW, Uri.parse("http://www.okbu.edu/admissions/moreinfo.html"));
break;
case 4 :
intent = new Intent(this, Visitwebview.class);
break;
/*case 5 :
intent = new Intent(this, Getinvolved.class);
break;*/
}
startActivity(intent);
};
}

I recommend you to use ActionBarSherlock library: http://actionbarsherlock.com
Take a look at the samples and it will be easy to do what you ask for. At first, it may take a while to learn how to use this library, but you will not regret it since you will use it several times in the future for sure.
The coolest thing about this library is that it is compatible with older Android versions. I.e. The swipe effect will be available for Ice Cream users while for Froyo users will see two clickable tabs :good:

First of all, you can't swipe between activities. You can only swipe between fragments. Think of the activity as a container which holds your two fragments.
This is an example of a ListFragment:
Code:
public static class TitlesFragment extends ListFragment {
boolean mDualPane;
int mCurCheckPosition = 0;
@Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
// Populate list with our static array of titles.
setListAdapter(new ArrayAdapter<String>(getActivity(),
android.R.layout.simple_list_item_activated_1, Shakespeare.TITLES));
// Check to see if we have a frame in which to embed the details
// fragment directly in the containing UI.
View detailsFrame = getActivity().findViewById(R.id.details);
mDualPane = detailsFrame != null && detailsFrame.getVisibility() == View.VISIBLE;
if (savedInstanceState != null) {
// Restore last state for checked position.
mCurCheckPosition = savedInstanceState.getInt("curChoice", 0);
}
if (mDualPane) {
// In dual-pane mode, the list view highlights the selected item.
getListView().setChoiceMode(ListView.CHOICE_MODE_SINGLE);
// Make sure our UI is in the correct state.
showDetails(mCurCheckPosition);
}
}
@Override
public void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
outState.putInt("curChoice", mCurCheckPosition);
}
@Override
public void onListItemClick(ListView l, View v, int position, long id) {
showDetails(position);
}
/**
* Helper function to show the details of a selected item, either by
* displaying a fragment in-place in the current UI, or starting a
* whole new activity in which it is displayed.
*/
void showDetails(int index) {
mCurCheckPosition = index;
if (mDualPane) {
// We can display everything in-place with fragments, so update
// the list to highlight the selected item and show the data.
getListView().setItemChecked(index, true);
// Check what fragment is currently shown, replace if needed.
DetailsFragment details = (DetailsFragment)
getFragmentManager().findFragmentById(R.id.details);
if (details == null || details.getShownIndex() != index) {
// Make new fragment to show this selection.
details = DetailsFragment.newInstance(index);
// Execute a transaction, replacing any existing fragment
// with this one inside the frame.
FragmentTransaction ft = getFragmentManager().beginTransaction();
if (index == 0) {
ft.replace(R.id.details, details);
} else {
ft.replace(R.id.a_item, details);
}
ft.setTransition(FragmentTransaction.TRANSIT_FRAGMENT_FADE);
ft.commit();
}
} else {
// Otherwise we need to launch a new activity to display
// the dialog fragment with selected text.
Intent intent = new Intent();
intent.setClass(getActivity(), DetailsActivity.class);
intent.putExtra("index", index);
startActivity(intent);
}
}
}
I can't help you there because I've never worked with lists.
As for the swiping effect, build your project with a minimum SDK of 14 (ICS) and choose swipe-able tabs navigation. The ADT will do the job for you. Later, in order to maintain compatibility, use ABS library as patedit suggested.
Good luck

To implement a ViewPager, just add ViewPager to XML layout, and set a FragmentPageAdapter to it.
You must use support package from Android SDK and FragmentActivity instead of Activitiy.
You can examine source code of API Demos package to know more.

Android/Java Newbie

Hi all, im having a go at developing a simple app. i have little experience with Java and Android development. i have a little test app at the moment and have created a new class, im trying to create a new instance of this class on a button click. it fails to do so, i cant for the life of me see why so.. can someone shed any light on this?
Thanks
Debuging this shows it hitting the "LocationFactory locationf = new LocationFactory();" line and throwing an exception-
"java.lang.NullPointerException"
Main
Code:
package com.example.testapp;
import android.os.Bundle;
import android.app.Activity;
import android.content.Context;
import android.view.Menu;
import android.view.View;
import android.widget.Toast;
import java.io.IOException;
public class MainActivity extends Activity {
private static final Context Context = null;
protected static final String TAG = null;
[user=439709]@override[/user]
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}
[user=439709]@override[/user]
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
public void mainButton(View view) throws IOException {
try {
LocationFactory locationf = new LocationFactory();
Toast.makeText(this, locationf.getAddress(),Toast.LENGTH_LONG).show();
} catch (Exception e)
{
Toast.makeText(this, e.toString(), Toast.LENGTH_LONG).show();
}
}
}
Class
Code:
package com.example.testapp;
import android.content.Context;
import android.location.Address;
import android.location.Geocoder;
import android.location.Location;
import android.location.LocationManager;
import java.io.IOException;
import java.util.Locale;
import java.util.List;
public class LocationFactory
{
private static final Context Context = null;
Geocoder geocoder = new Geocoder(Context, Locale.getDefault());
LocationManager manager = (LocationManager) Context.getSystemService(android.content.Context.LOCATION_SERVICE);
public double Latitude = 0.0;
public double Longitude = 0.0;
public LocationFactory()
{
}
public String getAddress() throws IOException
{
String ReturnAddress = "";
String Address = "", City = "", Country = "";
List<Address> addresses = null;
if(manager.isProviderEnabled(LocationManager.GPS_PROVIDER))
{
// Use GPS Radio Location
Location GPSlocation = manager.getLastKnownLocation(LocationManager.GPS_PROVIDER);
Latitude = GPSlocation.getLatitude();
Longitude = GPSlocation.getLongitude();
}
else
{
// Use Cell Tower Location
Location NETlocation = manager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
Latitude = NETlocation.getLatitude();
Longitude = NETlocation.getLongitude();
}
if(Latitude > 0 && Longitude > 0)
{
addresses = geocoder.getFromLocation(Latitude, Longitude, 1);
if(!addresses.isEmpty())
{
Address = addresses.get(0).getAddressLine(0);
City = addresses.get(0).getAddressLine(1);
Country = addresses.get(0).getAddressLine(2);
}
}
ReturnAddress = Address + " " + City + " " + Country;
return ReturnAddress;
}
}

I don't see anywhere in your code where you are calling the mainButton(View view) method. In the Android lifecycle, the onCreate method is the equivalent of a normal Java program's main() method, which means that code execution begins with the first line of onCreate(). Not knowing what you're trying to do, a good start would be to call your mainButton() method AFTER setContentView() in onCreate().
Side note: your mainButton() method has a View parameter that is never used. Is there a reason for that?
Android activity lifecycle: http://developer.android.com/reference/android/app/Activity.html#ActivityLifecycle

You have to use an intent on that button click, use the method onClickListener and define the intent in the androidmanifest.xml
e.g
Code:
Button button = (Button) findViewById(R.id.[B]button[/B]) // replace latter button with actual id defined in main xml.
button.setOnClickListener(new View.OnClickListener() {
[user=439709]@override[/user]
public void onClick(View arg0) {
// TODO Auto-generated method stub
startActivity(new Intent("[B]com.example.packagename.CLASSNAME[/B]")); // this should be your own package name.
}
});
Also define this in android manifest under the <application> and </application>
Code:
<activity
android:name=".[B]CLASSNAME[/B]"
android:label="@string/app_name"
>
<intent-filter>
<action android:name="[B]com.example.packagename.CLASSNAME[/B]" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
Change the values of BOLD text according to your own values.
I tried to help you as far as I understood your question. Please let me know if you face any problem I would be more than happy to help you. Rest I am also in the learning phase so you can always PM me if you face any problem.
Hit thanks if I have helped you in any way.

coolbud012 said:
You have to use an intent on that button click, use the method onClickListener and define the intent in the androidmanifest.xml
Click to expand...
Click to collapse
Nope! He didn't say that he wanted to launch a new Activity when the button is clicked. He wants to create a new instance of his LocationFactory Class.

jpepin said:
Nope! He didn't say that he wanted to launch a new Activity when the button is clicked. He wants to create a new instance of his LocationFactory Class.
Click to expand...
Click to collapse
Oops yeah right read that now...I thought he want to start an activity... Anyways tried to delete my reply but not getting an option to delete.

There are many flaws in his code. And the other thing is if its his first app and if he has low level of programming experience then according to me it would be a next to impossible app for him, as per his code and what he is trying to implement.
I think he should rather start up with small apps, understand things and then move on to complex apps.
P.S - its just my opinion
Click to expand...
Click to collapse
Agreed that he should start small...which is exactly why your suggestion for creating and handling Intents makes no sense. Before that, he should first understand the activity lifecycle. Until then, he can just stick to trivial single-activity apps to gain experience.
OP: This code should be placed in the onCreate method:
Code:
Button button = (Button) findViewById(R.id.your_button_ID_here)
button.setOnClickListener(new View.OnClickListener() {
[user=439709]@override[/user]
public void onClick(View arg0) {
mainButton(); // get rid of the View parameter in this method...it's not needed
}
});
This will cause a new instance of your LocationFactory to be created, and will also cause your Toast message to be displayed.

thanks for the replies. yes you are right in that i am inexperienced, but this is just a test app for me to play around with and learn on. i tend to learn better by doing rather than constantly reading. thanks for your suggestions ill look into them

osmorgan said:
thanks for the replies. yes you are right in that i am inexperienced, but this is just a test app for me to play around with and learn on. i tend to learn better by doing rather than constantly reading. thanks for your suggestions ill look into them
Click to expand...
Click to collapse
I also believe in the same, I also keep on doing experiments and testing things out.
What I would suggest is that start with a small app and understand the insights on how android works and all...
Thanks

Potential Solution
Alright, I think I've found your problem. Have a look at where you define your variables in your LocationManager class:
Code:
private static final Context Context = null;
Geocoder geocoder = new Geocoder(Context, Locale.getDefault());
LocationManager manager = (LocationManager) Context.getSystemService(android.content.Context.LOCATION_SERVICE);
This is your problem:
Code:
Context Context = null;
If your context is null, and you use it to create a geocoder and call Context.getSystemService, you'll hit a null pointer. You're trying to access an object (the Context) that doesn't even exist
I'd recommend you pass the context in the LocationManager constructor and then instantiate your objects there. That's standard java procedure.
Code:
private Context mContext = null;
Geocoder geocoder = null;
LocationManager manager = null;
public double Latitude = 0.0;
public double Longitude = 0.0;
public LocationFactory(Context context)
{
this.mContext = context;
this.geocoder = new Geocoder(context, Locale.getDefault());
this.manager = (LocationManager) Context.getSystemService(android.content.Context.LOCATION_SERVICE);
}
I also renamed Context to mContext - it's generally a good idea to keep the instance's name separate from the class name.
Try that - it should work. Please feel free to ask any more questions - this is how I learned, and I think it's the best way!

[Q] No idea how to load onChildClick in my ExpandableListView.

I have an expandable list view with 2 parents and 3 children. I want to open a dialog based on each click. I can't find any examples showing you how to call something based on positions. At least not with the ExpandableListView tutorial I followed.
Code:
public class MainActivity extends Activity implements OnClickListener {
private LinkedHashMap<String, HeaderInfo> myDepartments = new LinkedHashMap<String, HeaderInfo>();
private ArrayList<HeaderInfo> deptList = new ArrayList<HeaderInfo>();
private MyListAdapter listAdapter;
private ExpandableListView myList;
[user=439709]@override[/user]
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// Just add some data to start with
loadData();
// get reference to the ExpandableListView
myList = (ExpandableListView) findViewById(R.id.myList);
// create the adapter by passing your ArrayList data
listAdapter = new MyListAdapter(MainActivity.this, deptList);
// attach the adapter to the list
myList.setAdapter(listAdapter);
// listener for child row click
myList.setOnChildClickListener(myListItemClicked);
// listener for group heading click
myList.setOnGroupClickListener(myListGroupClicked);
}
// load some initial data into out list
private void loadData() {
addProduct("Parent One", "Child One");
addProduct("Parent One", "Child Two");
addProduct("Parent One", "Child Three");
addProduct("Parent Two", "Child One");
addProduct("Parent Two", "Child Two");
addProduct("Parent Two", "Child Three");
}
// our child listener
private OnChildClickListener myListItemClicked = new OnChildClickListener() {
[user=439709]@override[/user]
public boolean onChildClick(ExpandableListView parent, View v,
int groupPosition, int childPosition, long id) {
// Create a switch that switches on the specific child position.
// get the group header
HeaderInfo headerInfo = deptList.get(groupPosition);
// get the child info
DetailInfo detailInfo = headerInfo.getProductList().get(
childPosition);
// display it or do something with it
// custom dialog
final Dialog dialog = new Dialog(MainActivity.this);
dialog.setContentView(R.layout.cdialog);
// dialog.setTitle(R.id.titlebar);
dialog.setTitle(R.string.titlebar);
dialog.show();
return false;
}
};
// our group listener
private OnGroupClickListener myListGroupClicked = new OnGroupClickListener() {
public boolean onGroupClick(ExpandableListView parent, View v,
int groupPosition, long id) {
// get the group header HeaderInfo headerInfo =
deptList.get(groupPosition);
// display it or do something with it
return false;
}
};
I can get a custom dialog open if I click a child, but it's not set to any specific parent and child.
Any ideas?
EDIT ADD: Got it. Tried a switch/case like this and it worked. Finally! After two days of trying to understand it.:fingers-crossed:
Code:
switch(groupPosition) {
case 1:
switch (childPosition) {
case 0:
Intent protheanIntent = new Intent(Codex.this, CodexProthean.class);
Codex.this.startActivity(protheanIntent);
break;
case 1:
Intent rachniIntent = new Intent(Codex.this, CodexRachni.class);
Codex.this.startActivity(rachniIntent);
break;
}
case 2:
switch (childPosition) {
case 2:
Intent asariIntent = new Intent(Codex.this, CodexAsari.class);
Codex.this.startActivity(asariIntent);
break;
}
}

How to use Navigation Drawer inside Tabs menu.

Hi guys.
I've been developing an app which has Swipeable menu in bottom and one of the pages , should have a Navigation Drawer to change its own Fragments.
MainActivity.java
Code:
package com.example.elizehprotowithshlkandvpis;
import com.example.elizehprotowithshlkandvpis.adapter.MainMenuAdapter;
import com.viewpagerindicator.TabPageIndicator;
import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.view.ViewPager;
import android.view.Menu;
public class MainActivity extends FragmentActivity {
private static final String[] CONTENT = { "Home", "AboutUs", "Maps", "Resturants", "Tours", "CustomerClub", "Neccesseries", "UrgentCall" };
private ViewPager mViewPager;
private FragmentPagerAdapter adapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
adapter = new MainMenuAdapter(getSupportFragmentManager());
mViewPager = (ViewPager) findViewById(R.id.pager);
mViewPager.setAdapter(adapter);
TabPageIndicator indicator = (TabPageIndicator) findViewById(R.id.indicator);
indicator.setViewPager(mViewPager);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
public static String[] getCONTENT() {
return CONTENT;
}
}
MainMenuAdapter.java
Code:
package com.example.elizehprotowithshlkandvpis.adapter;
import com.example.elizehprotowithshlkandvpis.MainActivity;
import com.example.menuclasses.AboutUs;
import com.example.menuclasses.CustomerClub;
import com.example.menuclasses.Maps;
import com.example.menuclasses.Neccesseries;
import com.example.menuclasses.Tours;
import com.example.menuclasses.UrgentCall;
import com.example.menuclasses.Resturants;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
public class MainMenuAdapter extends FragmentPagerAdapter {
private static final String[] CONTENT = { "Home", "AboutUs", "Maps", "Resturants", "Tours", "CustomerClub", "Neccesseries", "UrgentCall" };
private final int HOME_INDEX = 0;
private final int ABOUTUS_INDEX = 1;
private final int MAPS_INDEX = 2;
private final int RESTURANTS_INDEX = 3;
private final int TOURS_INDEX = 4;
private final int CUSTOMERCLUB_INDEX = 5;
private final int NECCESSERIES_INDEX = 6;
private final int URGENTCALL_INDEX = 7;
private final int NUMBEROFMENUS = CONTENT.length;
public MainMenuAdapter(FragmentManager fm) {
super(fm);
// TODO Auto-generated constructor stub
}
@Override
public CharSequence getPageTitle(int position) {
String[] CONTENT = MainActivity.getCONTENT();
return CONTENT[position % CONTENT.length].toUpperCase();
}
@Override
public Fragment getItem(int index) {
switch(index) {
case HOME_INDEX:
return new AboutUs();
case ABOUTUS_INDEX:
return new AboutUs();
case MAPS_INDEX:
return new Maps();
case RESTURANTS_INDEX:
return new Resturants();
case TOURS_INDEX:
return new Tours();
case CUSTOMERCLUB_INDEX:
return new CustomerClub();
case NECCESSERIES_INDEX:
return new Neccesseries();
case URGENTCALL_INDEX:
return new UrgentCall();
}
return null;
}
@Override
public int getCount() {
// TODO Auto-generated method stub
return NUMBEROFMENUS;
}
}
The Fragment that should contain a Navigation Drawer is Resturants , also drawer's mainactivity is implemented with Sherlock Library(SherlockFragmentActivity).
I'm puzzled how to call the SherlockFragmentActivity from the SherlockActivity
Thanks

Pouya_am said:
Hi guys.
I've been developing an app which has Swipeable menu in bottom and one of the pages , should have a Navigation Drawer to change its own Fragments.
MainActivity.java
Code:
package com.example.elizehprotowithshlkandvpis;
import com.example.elizehprotowithshlkandvpis.adapter.MainMenuAdapter;
import com.viewpagerindicator.TabPageIndicator;
import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentPagerAdapter;
import android.support.v4.view.ViewPager;
import android.view.Menu;
public class MainActivity extends FragmentActivity {
private static final String[] CONTENT = { "Home", "AboutUs", "Maps", "Resturants", "Tours", "CustomerClub", "Neccesseries", "UrgentCall" };
private ViewPager mViewPager;
private FragmentPagerAdapter adapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
adapter = new MainMenuAdapter(getSupportFragmentManager());
mViewPager = (ViewPager) findViewById(R.id.pager);
mViewPager.setAdapter(adapter);
TabPageIndicator indicator = (TabPageIndicator) findViewById(R.id.indicator);
indicator.setViewPager(mViewPager);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
public static String[] getCONTENT() {
return CONTENT;
}
}
MainMenuAdapter.java
Code:
package com.example.elizehprotowithshlkandvpis.adapter;
import com.example.elizehprotowithshlkandvpis.MainActivity;
import com.example.menuclasses.AboutUs;
import com.example.menuclasses.CustomerClub;
import com.example.menuclasses.Maps;
import com.example.menuclasses.Neccesseries;
import com.example.menuclasses.Tours;
import com.example.menuclasses.UrgentCall;
import com.example.menuclasses.Resturants;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
public class MainMenuAdapter extends FragmentPagerAdapter {
private static final String[] CONTENT = { "Home", "AboutUs", "Maps", "Resturants", "Tours", "CustomerClub", "Neccesseries", "UrgentCall" };
private final int HOME_INDEX = 0;
private final int ABOUTUS_INDEX = 1;
private final int MAPS_INDEX = 2;
private final int RESTURANTS_INDEX = 3;
private final int TOURS_INDEX = 4;
private final int CUSTOMERCLUB_INDEX = 5;
private final int NECCESSERIES_INDEX = 6;
private final int URGENTCALL_INDEX = 7;
private final int NUMBEROFMENUS = CONTENT.length;
public MainMenuAdapter(FragmentManager fm) {
super(fm);
// TODO Auto-generated constructor stub
}
@Override
public CharSequence getPageTitle(int position) {
String[] CONTENT = MainActivity.getCONTENT();
return CONTENT[position % CONTENT.length].toUpperCase();
}
@Override
public Fragment getItem(int index) {
switch(index) {
case HOME_INDEX:
return new AboutUs();
case ABOUTUS_INDEX:
return new AboutUs();
case MAPS_INDEX:
return new Maps();
case RESTURANTS_INDEX:
return new Resturants();
case TOURS_INDEX:
return new Tours();
case CUSTOMERCLUB_INDEX:
return new CustomerClub();
case NECCESSERIES_INDEX:
return new Neccesseries();
case URGENTCALL_INDEX:
return new UrgentCall();
}
return null;
}
@Override
public int getCount() {
// TODO Auto-generated method stub
return NUMBEROFMENUS;
}
}
The Fragment that should contain a Navigation Drawer is Resturants , also drawer's mainactivity is implemented with Sherlock Library(SherlockFragmentActivity).
I'm puzzled how to call the SherlockFragmentActivity from the SherlockActivity
Thanks
Click to expand...
Click to collapse
That last sentence does not make sense I assume you mean from the Fragment?! Well to access the holding activity you need to add an interface to the Fragment which the activity will implement.
Am I understanding you correctly that have a horizontal ViewPager and one of the Fragments should have a Navigation drawer? To accomplish that you would still need the whole activity to hold the drawer and figure out a way to disable it when the user is on some other Fragment. But my question is why you want to use a navigation drawer in that case, because the drawer is meant for navigating on the same hierarchical level, but the different items are more independent than with the ViewPager. It doesn't really make sense to have both a drawer and horizontal swiping, even the YouTube app really bothers me with its swiping between suggestions and feed. I think what you need to use here is a spinner in the ActionBar, replacing the title of the Fragment.

SimplicityApks said:
That last sentence does not make sense I assume you mean from the Fragment?! Well to access the holding activity you need to add an interface to the Fragment which the activity will implement.
Am I understanding you correctly that have a horizontal ViewPager and one of the Fragments should have a Navigation drawer? To accomplish that you would still need the whole activity to hold the drawer and figure out a way to disable it when the user is on some other Fragment. But my question is why you want to use a navigation drawer in that case, because the drawer is meant for navigating on the same hierarchical level, but the different items are more independent than with the ViewPager. It doesn't really make sense to have both a drawer and horizontal swiping, even the YouTube app really bothers me with its swiping between suggestions and feed. I think what you need to use here is a spinner in the ActionBar, replacing the title of the Fragment.
Click to expand...
Click to collapse
Yeah you're right , I just want to use the drawer in order to change contents.
So as you suggest , I just have to use a simple tricks to make the drawer enable in desire Fragment.
I don't want to , I am asked to make it possible....

swipable menu on left

hI THERE,
How can I in adroid have swipable menu on left..similar to gmail.. ( WHICH when you swipe gives you inbox below it social, promotions, primary then all labels below it starred important chats sent outbox) ..

http://www.androidhive.info/2013/11/android-sliding-menu-using-navigation-drawer/

one question.. android.support.v4 does this support honeycomb?
3.0 and above?

krikor1 said:
one question.. android.support.v4 does this support honeycomb?
3.0 and above?
Click to expand...
Click to collapse
http://developer.android.com/reference/android/support/v4/app/package-summary.html
Support android.app classes to assist with development of applications for android API level 4 or later. The main features here are backwards-compatible versions of FragmentManager and LoaderManager.
Click to expand...
Click to collapse
is that what you where asking for?

Implemented it, but what if i want it similar to right one... that is favorites... below it list of buttons..same for others..
http://www.androidhive.info/wp-content/uploads/2013/11/sliding-menu-example-applications.jpg

The implementation purely depends on you. You can inflate multiple list views.
Sent from my Micromax A116

coolbud012 said:
The implementation purely depends on you. You can inflate multiple list views.
Sent from my Micromax A116
Click to expand...
Click to collapse
how do u inflate multiple list views?
Code:
package com.netvariant.alkhaliji;
import java.util.ArrayList;
import android.annotation.TargetApi;
import android.app.Activity;
import android.app.Fragment;
import android.app.FragmentManager;
import android.content.res.Configuration;
import android.content.res.TypedArray;
import android.os.Build;
import android.os.Bundle;
import android.support.v4.app.ActionBarDrawerToggle;
import android.support.v4.widget.DrawerLayout;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.ListView;
@TargetApi(Build.VERSION_CODES.HONEYCOMB)
public class TabMenu extends Activity {
private DrawerLayout mDrawerLayout;
private ListView mDrawerList[B], mDrawerList2;[/B]
private ActionBarDrawerToggle mDrawerToggle;
// nav drawer title
private CharSequence mDrawerTitle;
// used to store app title
private CharSequence mTitle;
// slide menu items
private String[] navMenuTitles;
private TypedArray navMenuIcons;
private ArrayList<NavDrawerItem> navDrawerItems, [B]navDrawerItems2;[/B]
private NavDrawerListAdapter adapter,[B] adapter2;[/B]
@TargetApi(Build.VERSION_CODES.ICE_CREAM_SANDWICH)
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_menu);
mTitle = mDrawerTitle = getTitle();
// load slide menu items
navMenuTitles = getResources().getStringArray(R.array.nav_drawer_items);
// nav drawer icons from resources
navMenuIcons = getResources()
.obtainTypedArray(R.array.nav_drawer_icons);
mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
[B]mDrawerList = (ListView) findViewById(R.id.list_slidermenu);
mDrawerList2 = (ListView) findViewById(R.id.list_menuslider);[/B]
navDrawerItems = new ArrayList<NavDrawerItem>();
// adding nav drawer items to array
// Home
navDrawerItems.add(new NavDrawerItem(navMenuTitles[0], navMenuIcons.getResourceId(0, -1)));
// Find People
[B]navDrawerItems2.add(new NavDrawerItem(navMenuTitles[1], navMenuIcons.getResourceId(1, -1)));
// Photos
navDrawerItems2.add(new NavDrawerItem(navMenuTitles[2], navMenuIcons.getResourceId(2, -1)));
// Communities, Will add a counter here
navDrawerItems2.add(new NavDrawerItem(navMenuTitles[3], navMenuIcons.getResourceId(3, -1)));
// Pages
navDrawerItems2.add(new NavDrawerItem(navMenuTitles[4], navMenuIcons.getResourceId(4, -1)));
// What's hot, We will add a counter here
navDrawerItems2.add(new NavDrawerItem(navMenuTitles[5], navMenuIcons.getResourceId(5, -1)));[/B]
// Recycle the typed array
navMenuIcons.recycle();
[B]mDrawerList.setOnItemClickListener(new SlideMenuClickListener());
mDrawerList2.setOnItemClickListener(new SlideMenuClickListener());[/B]
// setting the nav drawer list adapter
[B]adapter = new NavDrawerListAdapter(getApplicationContext(),
navDrawerItems);
adapter = new NavDrawerListAdapter(getApplicationContext(),
navDrawerItems2);
mDrawerList.setAdapter(adapter);
mDrawerList2.setAdapter(adapter2);[/B]
// enabling action bar app icon and behaving it as toggle button
getActionBar().setDisplayHomeAsUpEnabled(true);
getActionBar().setHomeButtonEnabled(true);
mDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout,
R.drawable.ic_drawer, //nav menu toggle icon
R.string.app_name, // nav drawer open - description for accessibility
R.string.app_name // nav drawer close - description for accessibility
) {
@TargetApi(Build.VERSION_CODES.HONEYCOMB)
public void onDrawerClosed(View view) {
getActionBar().setTitle(mTitle);
// calling onPrepareOptionsMenu() to show action bar icons
invalidateOptionsMenu();
}
@TargetApi(Build.VERSION_CODES.HONEYCOMB)
public void onDrawerOpened(View drawerView) {
getActionBar().setTitle(mDrawerTitle);
// calling onPrepareOptionsMenu() to hide action bar icons
invalidateOptionsMenu();
}
};
mDrawerLayout.setDrawerListener(mDrawerToggle);
if (savedInstanceState == null) {
// on first time display view for first nav item
displayView(0);
}
}
/**
* Slide menu item click listener
* */
private class SlideMenuClickListener implements
ListView.OnItemClickListener {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position,
long id) {
// display view for selected nav drawer item
displayView(position);
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// toggle nav drawer on selecting action bar app icon/title
if (mDrawerToggle.onOptionsItemSelected(item)) {
return true;
}
// Handle action bar actions click
switch (item.getItemId()) {
case R.id.action_settings:
return true;
default:
return super.onOptionsItemSelected(item);
}
}
/* *
* Called when invalidateOptionsMenu() is triggered
*/
@Override
public boolean onPrepareOptionsMenu(Menu menu) {
[B] // if nav drawer is opened, hide the action items
boolean drawerOpen = mDrawerLayout.isDrawerOpen(mDrawerList);
menu.findItem(R.id.action_settings).setVisible(!drawerOpen);
boolean drawerOpen2 = mDrawerLayout.isDrawerOpen(mDrawerList2);
menu.findItem(R.id.action_settings).setVisible(!drawerOpen2);
return super.onPrepareOptionsMenu(menu);[/B]
}
/**
* Diplaying fragment view for selected nav drawer list item
* */
@TargetApi(Build.VERSION_CODES.HONEYCOMB)
private void displayView(int position) {
// update the main content by replacing fragments
Fragment fragment = null;
switch (position) {
case 0:
fragment = new HomeFragment();
break;
case 1:
fragment = new FindPeopleFragment();
break;
case 2:
fragment = new PhotosFragment();
break;
case 3:
fragment = new CommunityFragment();
break;
case 4:
fragment = new PagesFragment();
break;
case 5:
fragment = new WhatsHotFragment();
break;
default:
break;
}
if (fragment != null) {
FragmentManager fragmentManager = getFragmentManager();
fragmentManager.beginTransaction()
.replace(R.id.frame_container, fragment).commit();
[B]// update selected item and title, then close the drawer
mDrawerList.setItemChecked(position, true);
mDrawerList.setSelection(position);
mDrawerList2.setItemChecked(position, true);
mDrawerList2.setSelection(position);
setTitle(navMenuTitles[position]);
mDrawerLayout.closeDrawer(mDrawerList);
mDrawerLayout.closeDrawer(mDrawerList2);[/B]
} else {
// error in creating fragment
Log.e("MainActivity", "Error in creating fragment");
}
}
@Override
public void setTitle(CharSequence title) {
mTitle = title;
getActionBar().setTitle(mTitle);
}
/**
* When using the ActionBarDrawerToggle, you must call it during
* onPostCreate() and onConfigurationChanged()...
*/
@Override
protected void onPostCreate(Bundle savedInstanceState) {
super.onPostCreate(savedInstanceState);
// Sync the toggle state after onRestoreInstanceState has occurred.
mDrawerToggle.syncState();
}
@Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
// Pass any configuration change to the drawer toggls
mDrawerToggle.onConfigurationChanged(newConfig);
}
}
modified bolded parts, and i get error
also in xml i added this
Code:
<android.support.v4.widget.DrawerLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<!-- Framelayout to display Fragments -->
<FrameLayout
android:id="@+id/frame_container"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<!-- Listview to display slider menu -->
<ListView
android:id="@+id/list_slidermenu"
android:layout_width="240dp"
android:layout_height="match_parent"
android:layout_gravity="start"
android:choiceMode="singleChoice"
android:divider="@color/list_divider"
android:dividerHeight="1dp"
android:listSelector="@drawable/list_selector"
android:background="@color/list_background"/>
[B] <ListView
android:id="@+id/list_menuslider"
android:layout_width="240dp"
android:layout_height="match_parent"
android:layout_gravity="start"
android:choiceMode="singleChoice"
android:divider="@color/list_divider"
android:dividerHeight="1dp"
android:listSelector="@drawable/list_selector"
android:background="@color/list_background"/>[/B]
</android.support.v4.widget.DrawerLayout>
two listviews...instead of one..as i want it subsections...