Database Users

Help writing something with setOnItemClickListener

In my Android app, I have a sound that I want to play when a certain selection has been made from a spinner, but I want it to play the when the user actually makes the proper selection (or just after). My problem is that although the sound does play when they make the correct selection, as long as that selection stays chosen, it also plays every time the app starts up, when it should ONLY play at the time it's chosen. I think I need to change my setOnItemSelectedListener to setOnItemClickListener, but I'm not sure how (still pretty new to java). Can any generous soul out there show me how to change this up (assuming that's how to best solve this problem)?
Here is the code I have now:
Code:
fitnessSpinner = (Spinner) findViewById(R.id.fitness_spinner);
ArrayAdapter adapter4 = ArrayAdapter.createFromResource(
this, R.array.fitness_array, android.R.layout.simple_spinner_item);
adapter4.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
fitnessSpinner.setAdapter(adapter4);
fitnessSpinner.setOnItemSelectedListener(new OnItemSelectedListener()
{
@Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long i) {
Log.d("test", "p: " + position + " " + i);
if(position == 0) {
//First Entry
MediaPlayer mp = MediaPlayer.create(mContext, R.raw.bowchica);
mp.start();
} if(position == 4) {
MediaPlayer mp = MediaPlayer.create(mContext, R.raw.debbie2);
mp.start();
}
}
@Override
public void onNothingSelected(AdapterView<?> arg0) {
}
});

I haven't try the below code but you can try it on your own and tell us.
In onCreate() declare MediaPlayer mp;
In every if statement that you use for check insert this code:
Code:
if(mp!=null){mp.release();}
int resid = R.raw.yoursound;
mp = MediaPlayer.create(this, resid);
After that override the methods onPause() and onResume() and insert this:
if(mp!=null){mp.release();}
If it is still playing a sound when you start your app, then you should check your code again if you have set as default option any of your selection options.

I would LOVE to try this out...Unfortunately, I'm way too dumb at this point point ot figure out exactly where those code snippets would go inside of what I already have.
Does anyone have a couple of minutes to show me where it would go?

Below is a sample code. Since i don't know your code I give you a snippet that you should adjust it to your code.
Code:
public class SampleSound extends Activity{
private Spinner fitnessSpinner;
private MediaPlayer mp;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);//here goes your layout
setViews();//here you will set all your views(spinners buttons textviews etc..)
setAdapters();//set your adapters here
setListeners();//
}
private void setListeners() {
fitnessSpinner.setOnItemSelectedListener(new OnItemSelectedListener(){
@Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long i) {
Log.d("test", "p: " + position + " " + i);
if(position == 0) {
//First Entry
if(mp!=null){mp.release();}
int resid = R.raw.bowchica;
mp = MediaPlayer.create(this, resid);
mp.start();
} if(position == 4) {
if(mp!=null){mp.release();}
int resid = R.raw.debbie2;
mp = MediaPlayer.create(this, resid);
mp.start();
}
}
@Override
public void onNothingSelected(AdapterView<?> arg0) {
}
});
}
private void setAdapters() {
ArrayAdapter adapter4 = ArrayAdapter.createFromResource(this, R.array.fitness_array, android.R.layout.simple_spinner_item);
adapter4.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
fitnessSpinner.setAdapter(adapter4);
}
private void setViews() {
fitnessSpinner = (Spinner) findViewById(R.id.fitness_spinner);
}
public void onResume(){
super.onResume();
if(mp!=null){mp.release();}
}
public void onPause(){
super.onPause();
if(mp!=null){mp.release();}
}
}

I really appreciate the help. I put the code in my routine, but it still plays the sound every time the activity is loaded (as long as the selection in the spinner is correct). It should only play the sound when the correct selection is made.
Any other ideas?

I am sure that your Spinner is set to some value (since you have values to display). Because your Spinner points to a selection (doesn't matter if you have selected or it is selected by default) your sound plays (even when you start the app).
A way to stop the sound playing at start is to declare and an other Item like you did with the previous 4 and set it as default selection of your Spinner.
To sum up:
1.You have to append in R.array.fitness_array an Item (like you did with the previous Items) and give it a name.
2.At the end of method setAdapters() insert this:
Code:
fitnessSpiner.setSelection(5);// or whatever is your selection number
Now it should work but you should know that this is not a good practice and you should try make a ListView or something else.

I'd be happy to change this out to a listview, or whatever would work. I just have to give my user a choice of 4 or 5 items, from which they can choose only one. Something like a drop down box, but in Android, I thought my only option was a spinner. But whatever I use, I have to be able to play a sound when certain items are chosen, but ONLY when those items are chosen, NOT whenever the activity is called up.
Any specific ideas of what I might change to?

What if I had another control like a textview or an edittext (with it's visibility property set to false) that I programatically populated with the users selection (when it's the selection that I want) and then have an OnItemClcickListener set to play the sound?
Could that work?

I will answer from the last to the top of your questions.
1.You can do whatever you want with android. You want TextViews and EditTexts with complex and nested Layouts you can do it. Write services that will communicate with your contacts through a content provider? You can do it.
Write, read and test code. Only this way you will actually learn.
2.Read developer.android.com. Read the android tutorials from there and specifically the Notepad example. You will learn a lot.
A good resource with small examples for ListViews is this.
3.Have you tried the changes I told you from the last post? Did it worked?
Since you just started with android and programming you must first be happy if you have the expected result and then read more to make your code better

Your suggested changes (fitnessSpiner.setSelection(5);// or whatever is your selection number) would stop the sound from playing, but defeat the apps purpose. Every time this activity is loaded, the spinners hit preferences to load the previously stored data. So if I force the spinner to a different selection to NOT play sound when the activity loads, then I would be displaying the wrong data for the user.

Yes you are right. So it is better to make a ListActivity. Read developer.android.com and the link i gave you before. You will be ok with this!

You're using "setOnItemSelectedListener", which sounds like when the app starts, its getting "selected" again.
Have you tried using "setOnItemClickListener" instead?
fitnessSpinner.setOnItemClickListener(new AdapterView.OnItemClickListener () {
public void onItemClicked() {}
};

Lakers16 said:
You're using "setOnItemSelectedListener", which sounds like when the app starts, its getting "selected" again.
Have you tried using "setOnItemClickListener" instead?
fitnessSpinner.setOnItemClickListener(new AdapterView.OnItemClickListener () {
public void onItemClicked() {}
};
Click to expand...
Click to collapse
onClickListener doesn't work for the spinner...I wish it did.
I REALLY need the drop down functionality of teh spinner, so I guess I'm going to try and figure out a way to have an invisible edittext that I set to the spinner selection and then use onClickListener or onChange...

[Q] Using Split Action in android

Hi!
My self Raj, i have a problem when using the split action in my application.
i am doing an E-Menu for an restaurant. i list out all available category in major listview if the user click on the item of major list it should display all available minor items of its in behind of the Major listview.
I found one solution in Google it is possible by using split action.
Can anyone guide me / give some sample i may know about it..,
I am waiting for your guide.,
Have A Happy Day..,
Thanks to all..,

Simply add the following line to your <activity> or <application> tag in your AndroidManifest :
Code:
uiOptions="splitActionBarWhenNarrow"
EDIT : As a side note, it seems you want the split actionbar to be displayed only after the user clicked something, in that use case, the Contextual ActionBar seems more suited.
To use it, simply define your actionbar items in a menu.xml just like the normal actionbar, then in your java code use something like :
Code:
private ActionMode.Callback mActionModeCallback = new ActionMode.Callback() {
@Override
public boolean onCreateActionMode(ActionMode mode, Menu menu) {
MenuInflater inflater = mode.getMenuInflater();
inflater.inflate(R.menu.main, menu);
return true;
}
@Override
public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
return false;
}
@Override
public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
switch (item.getItemId()) {
case R.id.menu_item1:
//do something
mode.finish();
return true;
case R.id.menu_item2:
// do something else
mode.finish();
return true;
case R.id.menu_item3:
// etc....
mode.finish();
return true;
default:
return false;
}
}
@Override
public void onDestroyActionMode(ActionMode mode) {
mActionMode = null;
}
And in the onClickListener() of the component that triggers the contextual ActionBar, call it like that :
Code:
if (mActionMode != null)
// Do nothing
else
mActionMode = startActionMode(mActionModeCallback);
You might want to use the ActionBarSherlock Library in order to keep compatibility with gingerbread/froyo

[Q] Adding a item from another activity to ExpandableListView

I want to add a item to the child Today from another activity to the ExpandableListView. The activity where I want to add it is named LocHistory, here is a the code to add something to the list:
Code:
static void addListData(final Context context) {
List<NewsItem> list = listDataChild.get("Today");
NewsItem newsData = new NewsItem();
newsData = new NewsItem();
newsData.setHeadline("11.11111, 1.1111");
newsData.setSpeed("1.11KM/H");
newsData.setDirection("111");
newsData.setDate("11-1-1111 11:11:11");
list.add(0, newsData);
listDataChild.put("Today", list);
}
This is working when I have call the function in the same class (LocHistory). But when I call it in MainActivity like this:
Code:
public class MainActivity extends Activity {
Button button2;
[user=439709]@override[/user]
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
button2 = (Button) this.findViewById(R.id.button2);
button2.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
LocHistory.addListData(getBaseContext());
}
});
}
}
Then there is nothing added to the list. Is it possible to add a item from another activity to ExpandableListView? I want if there's something added that the class LocHistory is not going to open, so I think startActivity with a intent is not a option here (but i'm not sure).
(The java sources can be found here:
MainActivity.java pastebin.com/YWyfznwv
LocHistory.java - pastebin.com/XJ274C61
NewsItem.java - pastebin.com/uhmXbnhJ
ExpandableListAdapter.java - pastebin.com/5jPV8daz)

Alwaysup said:
I want to add a item to the child Today from another activity to the ExpandableListView. The activity where I want to add it is named LocHistory, here is a the code to add something to the list:
Code:
static void addListData(final Context context) {
List<NewsItem> list = listDataChild.get("Today");
NewsItem newsData = new NewsItem();
newsData = new NewsItem();
newsData.setHeadline("11.11111, 1.1111");
newsData.setSpeed("1.11KM/H");
newsData.setDirection("111");
newsData.setDate("11-1-1111 11:11:11");
list.add(0, newsData);
listDataChild.put("Today", list);
}
This is working when I have call the function in the same class (LocHistory). But when I call it in MainActivity like this:
Code:
public class MainActivity extends Activity {
Button button2;
[user=439709]@override[/user]
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
button2 = (Button) this.findViewById(R.id.button2);
button2.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
LocHistory.addListData(getBaseContext());
}
});
}
}
Then there is nothing added to the list. Is it possible to add a item from another activity to ExpandableListView? I want if there's something added that the class LocHistory is not going to open, so I think startActivity with a intent is not a option here (but i'm not sure).
(The java sources can be found here:
MainActivity.java pastebin.com/YWyfznwv
LocHistory.java - pastebin.com/XJ274C61
NewsItem.java - pastebin.com/uhmXbnhJ
ExpandableListAdapter.java - pastebin.com/5jPV8daz)
Click to expand...
Click to collapse
In Android, try to use as few static variables and methods as possible. To get a non-static access to the method, make it public and get an instance of the list adapter in the activity (via list.getAdapter () or create a new one and set the listAdapter in the expListView).
If you really want to access it through 2 activities, I'm sorry, there's no way of doing this directly. You'd have to save it in a file or your SharedPreferences and get the items once you get to the other activity.
And also, why do you need that context object in addListData()? That could lead to memory leak...

In this thread you can find a solution. There is a library called EventBus which they used. Read it completely (just 2 pages).
http://forum.xda-developers.com/showthread.php?t=2332069

By the way,
When I log the listDataChild in the function addListData then it seems that the item is added under the child Today (the logging is only working when I first open the class LocHistory and close it). The prepareListData function is called in the onCreate method. Is it maybe that function overrides the listDataChild that is created by the function addListData?
SimplicityApks said:
In Android, try to use as few static variables and methods as possible. To get a non-static access to the method, make it public and get an instance of the list adapter in the activity (via list.getAdapter () or create a new one and set the listAdapter in the expListView).
If you really want to access it through 2 activities, I'm sorry, there's no way of doing this directly. You'd have to save it in a file or your SharedPreferences and get the items once you get to the other activity.
And also, why do you need that context object in addListData()? That could lead to memory leak...
Click to expand...
Click to collapse
Sorry for the context object in addListData() is was doing some test with SharedPreferences and then I've to use the context object (I've removed now). Can you call list.getAdapter() from another activity?
nikwen said:
In this thread you can find a solution. There is a library called EventBus which they used. Read it completely (just 2 pages).
http://forum.xda-developers.com/showthread.php?t=2332069
Click to expand...
Click to collapse
Thanks for the link, I will study this. Altough I not prefer to include an other library

Alwaysup said:
By the way,
When I log the listDataChild in the function addListData then it seems that the item is added under the child Today (the logging is only working when I first open the class LocHistory and close it). The prepareListData function is called in the onCreate method. Is it maybe that function overrides the listDataChild that is created by the function addListData?
Sorry for the context object in addListData() is was doing some test with SharedPreferences and then I've to use the context object (I've removed now). Can you call list.getAdapter() from another activity?
Thanks for the link, I will study this. Altough I not prefer to include an other library
Click to expand...
Click to collapse
The event Bus is a cool library, but the question is whether it's worth including a lib to do just that. You can usually try to combine both activities into one with Fragments and a ViewPager.
The list can only be accessed in its own activity, so list.getAdapter() won't work. But u can still write the data to a file on the SD card or use a SQLite database (or SharedPreferences for non-objects).
I found out that what's probably better is to use less activities or use SharedPreferences wherever it's possible since it's cleaner and faster.
Had a similar problem a while ago (but I needed to pass data to a starting activity) and solved it using a Bundle (via Intent), but then realized the app is much nicer combining both activities...

SimplicityApks said:
The event Bus is a cool library, but the question is whether it's worth including a lib to do just that. You can usually try to combine both activities into one with Fragments and a ViewPager.
The list can only be accessed in its own activity, so list.getAdapter() won't work. But u can still write the data to a file on the SD card or use a SQLite database (or SharedPreferences for non-objects).
I found out that what's probably better is to use less activities or use SharedPreferences wherever it's possible since it's cleaner and faster.
Had a similar problem a while ago (but I needed to pass data to a starting activity) and solved it using a Bundle (via Intent), but then realized the app is much nicer combining both activities...
Click to expand...
Click to collapse
I agree. The less Activities, the better the app. (At least until all Activities are crowded. )

As you guys pointed out, I'm now using SharedPreferences. I'm using this code:
Code:
private static int startOf(String day) {
Date date = new Date(System.currentTimeMillis());
//TimeZone tzGMT = TimeZone.getTimeZone("GMT");
Calendar cal = Calendar.getInstance();
//cal.setTimeZone(tzGMT);
cal.setTime(date);
cal.set(Calendar.HOUR_OF_DAY, 0);
cal.set(Calendar.MINUTE, 0);
cal.set(Calendar.SECOND, 0);
// change to seconds
long ltimeM = cal.getTimeInMillis();
int iTimeStamp = 0;
if (day == "today") {
iTimeStamp = (int) (ltimeM / 1000);
} else if (day == "yesterday") {
iTimeStamp = (int) ((ltimeM / 1000) - 86400);
}
cal.set(Calendar.HOUR_OF_DAY, cal.getActualMinimum(Calendar.HOUR_OF_DAY));
cal.set(Calendar.MINUTE, cal.getActualMinimum(Calendar.MINUTE));
cal.set(Calendar.SECOND, cal.getActualMinimum(Calendar.SECOND));
//return Integer.toString(iTimeStamp);
return (int) iTimeStamp;
}
static void addListData (int TimeStamp, final String lat, final String lng, final String speed,
final String direction, final Context context){
int todaystamp = startOf("today");
int yesterdaystamp = startOf("yesterday");
String Datetime = DateFormat.format("dd-MM-yyyy kk:mm:ss", new Date(TimeStamp * 1000L)).toString();
SharedPreferences pref = context.getSharedPreferences("myPrefs", MODE_PRIVATE);
SharedPreferences.Editor editor = pref.edit();
if (TimeStamp >= todaystamp) {
editor.putString("Today", "*headline=" + lat + ", " + lng + ";speed=" + speed + ";direction=" + direction + ";date=" + Datetime + ";");
} else if (TimeStamp >= yesterdaystamp) {
editor.putString("Yesterday", "*headline=" + lat + ", " + lng + ";speed=" + speed + ";direction=" + direction + ";date=" + Datetime + ";");
} else if (TimeStamp < yesterdaystamp) {
editor.putString("Older", "*headline=" + lat + ", " + lng + ";speed=" + speed + ";direction=" + direction + ";date=" + Datetime + ";");
}
editor.commit();
}
But now I'm stuck with one problem, when I add a item to the SharedPreferences on the same key it will overwrite the previous data. How can I add data to the same key without overwriting the previous data? Is it maybe possible to first get the data and then join the item to the data after that add the data to the SharedPreferences?
Any help you guys can provide me would be greatly appreciated! :good:

Alwaysup said:
As you guys pointed out, I'm now using SharedPreferences. I'm using this code:
Code:
static void addListData (int TimeStamp, final String lat, final String lng, final String speed,
final String direction, final Context context){
int todaystamp = startOf("today");
int yesterdaystamp = startOf("yesterday");
String Datetime = DateFormat.format("dd-MM-yyyy kk:mm:ss", new Date(TimeStamp * 1000L)).toString();
SharedPreferences pref = context.getSharedPreferences("myPrefs", MODE_PRIVATE);
SharedPreferences.Editor editor = pref.edit();
if (TimeStamp >= todaystamp) {
editor.putString("Today", "*headline=" + lat + ", " + lng + ";speed=" + speed + ";direction=" + direction + ";date=" + Datetime + ";");
} else if (TimeStamp >= yesterdaystamp) {
editor.putString("Yesterday", "*headline=" + lat + ", " + lng + ";speed=" + speed + ";direction=" + direction + ";date=" + Datetime + ";");
} else if (TimeStamp < yesterdaystamp) {
editor.putString("Older", "*headline=" + lat + ", " + lng + ";speed=" + speed + ";direction=" + direction + ";date=" + Datetime + ";");
}
editor.commit();
}
But now I'm stuck with one problem, when I add a item to the SharedPreferences on the same key it will overwrite the previous data. How can I add data to the same key without overwriting the previous data? Is it maybe possible to first get the data and then join the item to the data after that add the data to the SharedPreferences?
Any help you guys can provide me would be greatly appreciated! :good:
Click to expand...
Click to collapse
SharedPreferences does not save data in subcategories, so the tag you give it to save a variable is then connected to that variable and if you use it again, it will be overridden (as you found out).
If you want to stick to the SharedPreferences, you have to give each item a unique tag, so you would normally add a counter to save "Today_1", "Today_2", Today_3", ...
then you save that counter also so that you know how many items you saved.
If you want to do it nicely though, check out the SQLite database. It is a little mor work and requires some knowledge about databases, but I think it's worth it.

Try static handlers. worth simple logic helps u to update ur activity from any thread or activity.

changing from a window to another

Hi Im just starting to learn android code and I dont understand why this doesnt work. Just for as a test I wanted to create 2 pages (or 1 page and 1 popup page but i thought 2 pages would be easier to make), and a way to get from one to the other, which I thought could be solved easly with a button on each page which takes me to the other page.
So I started with this:
HTML:
final ImageButton button = (ImageButton) findViewById(R.id.imageButton);
button.setOnClickListener(new View.OnClickListener() {
[user=439709]@override[/user]
public void onClick(View v) {
setContentView(R.layout.layout2);
} });
Basicually I start in a layout called activity_my which has a button and when I press it I get to the next page called layout2. I thought I could just make a similiar function to get back to my original page:
HTML:
final Button button2 = (Button) findViewById(R.id.button);
button2.setOnClickListener(new View.OnClickListener() {
[user=439709]@override[/user]
public void onClick(View v) {
setContentView(R.layout.activity_my);
}
});
But now I get error for whatever reason

Hi,
Basically in android, a 'page' is an Activity (class where you attach a XML layout).
So you must create 2 activity with 2 layout.
To switch activity use this foloowing code :
HTML:
Intent intent = new Intent(this, YourSecondActivity.class);
startActivity(intent);

PreferenceFragment and Tabs

Hi,
currently I am developing a App.
I use the NavigationDrawer to set up a Menu (with the "Burger-Button") on the left side.
Wenn I choose a menu item, for example a PreferenceFragment i displayed.
My problem: I want to display a Tab-Layout with a PreferenceFragment in each Tab.
But I don´t know how...
In my MainActitivty-Class (AppCompatActivity) I change the content of my App (after the user clicked on a menu item) like this:
Code:
@Override
public boolean onNavigationItemSelected(MenuItem item) {
FragmentTransaction fragmentTransaction = this.getFragmentManager().beginTransaction();
int id = item.getItemId();
// Globale Eistellungen
if (id == R.id.nav_main_settings) {
fragmentTransaction.replace(R.id.containerView, new MainPreferenceMenu());
fragmentTransaction.commit();
}
DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
drawer.closeDrawer(GravityCompat.START);
return true;
}
Whereby "MainPreferenceMenu" is a PreferenceFragment.
I tried it with this tutorial: https://guides.codepath.com/android/google-play-style-tabs-using-tablayout
First Problem: I can´t set my PreferenceFragment here:
Code:
@Override
public Fragment getItem(int position) {
return PageFragment.newInstance(position + 1);
}
Because "PreferenceFragment" is the wring Class.
Also I don´t know how to set the "ViewPager" like in the Tutorial (MainActivity).
Can anybody help me?
I hope my Problem is clear.

Using view pager for tabs is the best option as it behaves as per material guide lines.