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Hey there! I was coding an app I added a preferences menu, and it works, but changes happen only when I restart the application,anyone knows how to make changes happen whithout exitting the app??? Thanks in advance
My code ( from main activity):
preferencias = preferenceManager.getDefaultSharedPreferences(TimeToSpeechActivity.this);
OnSharedPreferenceChangeListener listener = new SharedPreferences.OnSharedPreferenceChangeListener() {
public void onSharedPreferenceChanged(SharedPreferences prefs, String key) {
//nothing here, do I have to put anything?
}
};
preferencias.registerOnSharedPreferenceChangeListener(listener);
getPrefs();
changefont(fuente, letra);
if (boole == true) {fontcolors();}
private void getPrefs(){
fuente = Typeface.createFromAsset(getAssets() , preferencias.getString("elegirfuente", "fonts/Default.ttf"));
letra = Integer.parseInt(preferencias.getString("fontstyle", "0"));
bol = preferencias.getBoolean("randomcolors", true);
}
Click to expand...
Click to collapse
I have nothing put in preference activity, do i have to put anything?
Also, do I have to edit this?: (SharedPreferences prefs, String key) I ask this because i havent created prefs and key varibles
Thanks in advance!!!
It should update for you if you put getPrefs() inside the sharedpreferences listener
Sent from my Xoom using xda premium
thanks, but if I do that I get a nullpointer exception, I think its caused because the params I use to set "changefont(fuente, letra);" and "if (boole == true) {fontcolors();}" have null value....another idea ,please? I am breaking my head with this...
My updated code:
preferencias = preferenceManager.getDefaultSharedPreferences(Time ToSpeechActivity.this);
OnSharedPreferenceChangeListener listener = new SharedPreferences.OnSharedPreferenceChangeListener () {
public void onSharedPreferenceChanged(SharedPreferences prefs, String key) {
getPrefs();
}
};
preferencias.registerOnSharedPreferenceChangeListener(listener);
changefont(fuente, letra);
if (boole == true) {fontcolors();}
private void getPrefs(){
fuente = Typeface.createFromAsset(getAssets() , preferencias.getString("elegirfuente", "fonts/Default.ttf"));
letra = Integer.parseInt(preferencias.getString("fontstyle ", "0"));
bol = preferencias.getBoolean("randomcolors", true);
}
Click to expand...
Click to collapse
i tried to put changefont and fontcolors functions inside the sharedpreference listener... but if i do, that options are not set... so I think there is a problem with the listener...why???
I will add the code of my preference class:
public class PantallaOpciones extends PreferenceActivity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
addPreferencesFromResource(R.xml.opciones);
}
}
Click to expand...
Click to collapse
One way ive always done preference updates was to use a dedicated method for updating (like you have with openPrefs()) then calling it after operations:
runOperation(){
updatePrefsMethod();
getPrefsMethod();
}
If i was near my pc i could give you a more solid example, but alas, im stuck at work lol
Also, use the stacktraces to check which line gives it null (itll say something like "at com.yourapp.identifier(offending Class - line number)
maybe if you a null check on the boolean for color that sets it false, you may not get the nullPointerException
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z3nful said:
One way ive always done preference updates was to use a dedicated method for updating (like you have with openPrefs()) then calling it after operations:
runOperation(){
updatePrefsMethod();
getPrefsMethod();
}
If i was near my pc i could give you a more solid example, but alas, im stuck at work lol
Also, maybe if you a null check on the boolean for color that sets it false, you may not get the nullPointerException
Sent from my Xoom using xda premium
Click to expand...
Click to collapse
OK, could you give me an example as soon as you can,please?
I had a class which i wanted to split into two for better readability and whenever i want to start a method from the second class the code gives NullPointerException.
So i ended up making another dummyclass and realized the problem is that either i dont know to to call from another class in android or am facing another issue.
In java id just make an object and call it but here NullPointerException and app crashes
Code:
public class active extends Activity {
public Button but;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
public void click()
{
but = (Button)findViewById(R.id.wifiSwitch);
but.setOnClickListener(new View.OnClickListener() {
[user=439709]@override[/user]
public void onClick(View view) {
Toast.makeText(getApplicationContext(), "Rebooting...", Toast.LENGTH_LONG).show();
}
});
}
}
In the first class i do the following
Code:
[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);
rootReqSetting();
mActive = new active();
mActive.click();
return true;
}
the mActive = new active(); and mActive.click(); causes the nullexception.
Some help please ?
Well, first I request that you post logcats in the future.
Second: You call that:
Code:
but = (Button)findViewById(R.id.wifiSwitch);
but.setOnClickListener(new View.OnClickListener() {
What is the system doing? There is a new object whose onCreate method has never been called (just the constructor). For that reason the field but is null (equals "no value"). That's why it crashes.
Third: You do not do it that way:
mActive = new active();
Starting other Activities is done using Intents. Read this: http://www.vogella.com/articles/AndroidIntent/article.html
Where in the code did you inflate the wifi button ????
That is the cause of NullPointerException
Secondly,
You cant instantiate activities like this you must use
startActivity(Intent);
Sent from my GT-S5302 using Tapatalk 2
Thank you for you answer.
The Third part i understood that i should make an intent for the second class.
About the second part you said i didnt understand correctly , can you explain a little more ?
@sak-venom1997 what do you mean by inflate the button, didnt the whole menu get inflated when i called it in the first ?
Code:
getMenuInflater().inflate(R.menu.main, menu);
or there is something i should add?
And a new window will show when i start the intent without calling anything in it. i just want the button to do what it is supposed to do.
Tell me how the hell did you manage to put a Button in a MenuItem that code would just infate the menu Button would be infalted only if the parent layout is inflated
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sak-venom1997 said:
Tell me how the hell did you manage to put a Button in a MenuItem that code would just infate the menu Button would be infalted only if the parent layout is inflated
Sent from my GT-S5302 using Tapatalk 2
Click to expand...
Click to collapse
can you tell me then what am supposed to do, Am new to android and trying to learn.
You must call
setContentView(R.layout.layout_name);
Where is that button ure reffering
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Hello!
First at all, I'm a beginner in android coding, I'm more a graphist with Photoshop as main tool.
A friend has made an app for my themes and is in holidays until september.
Beeing logical and understanding fast, with my friend Google we found the functions/codes I needed. Except one:
I have a horizontal scroll layout showing the apps needed to install the theme. Each app is showed in a linearlayout.
What I would like is make each linearlayout of apps clickable and make them show the app on the playstore when you click on it.
Thanks for reading
I assume you're using Textviews to add line by line the dependencies.. There is a property called autolink or very much like it that makes a link whenever it finds a url in the text...
But instead of Textviews in a linearlayout, why not use ListView? Then you can handle the click in the item to create an intent to open the browser with the url needed... it's a bit of more work but has a better esthetic than a bunch of TextViews... For instance, it makes it easier to use when in a ldpi device...
Sent from my LG-P350 using xda app-developers app
Sorry for the late.
I'm beginner in java coding so I don't undersand well what you mean dude.
In fact, what I have now is:
In res\layout\main.xml:
Code:
<HorizontalScrollView
android:id="@+id/layout5"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_below="@id/layout3"
android:layout_marginLeft="8dp"
android:layout_marginRight="8dp"
android:layout_marginTop="8dp"
>
<LinearLayout
android:id="@+id/layout4"
android:background="#00000000"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal" >
</LinearLayout>
</HorizontalScrollView>
In MainActivity.java:
Code:
boolean apexInstalled = appInstalledOrNot("com.anddoes.launcher");
RelativeLayout apexApp = (RelativeLayout) getLayoutInflater().inflate(R.layout.item, null);
RelativeLayout.LayoutParams params = new RelativeLayout.LayoutParams((int) (125 * scale + 0.5f),(int) (150 * scale + 0.5f));
ImageView apexI = (ImageView) apexApp.findViewById(R.id.appIcon);
apexI.setBackgroundResource(R.drawable.apexicon);
TextView apexT = (TextView) apexApp.findViewById(R.id.appText);
if(apexInstalled){
apexT.setText(R.string.installe);
apexT.setTextColor(Color.parseColor("#5a925d"));
}
else{
apexT.setText(R.string.nninstalle);
apexT.setTextColor(Color.parseColor("#de3747"));
}
apexT.setTypeface(font);
TextView apexTitle = (TextView) apexApp.findViewById(R.id.appTitle);
apexTitle.setText("Apex Launcher"); // \n == retour a la ligne
apexTitle.setTypeface(font);
apexApp.setBackgroundColor(Color.argb(190, 0, 0, 0));
listApp.addView(apexApp, params);
And I have many blocks like this one but with other apps, and I would like them to point on the playstore, what do I have to add?
Use a ListView with a custom Adapter: http://www.vogella.com/articles/AndroidListView/
Then add an OnItemClickedListener to the ListView.
In its onItemClick method you can use an Intent like this one:
Code:
Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse("market://details?id=" + pkg); //Your package name here
if (getActivity().getPackageManager().queryIntentActivities(intent, 0).size() > 0) {
startActivity(intent);
} else {
Toast.makeText(getActivity(), "Google Play is not installed on the device.", Toast.LENGTH_LONG).show();
}
Thanks trying to help me, but I understand aproximatively the intent, but the listview etc, no..
I'm just trying to modify a bit an app somebody made for me using my logic to understand what I have to do. The problem is that I don't understand how to apply what you tell me :/
Lyechee said:
Thanks trying to help me, but I understand aproximatively the intent, but the listview etc, no..
I'm just trying to modify a bit an app somebody made for me using my logic to understand what I have to do. The problem is that I don't understand how to apply what you tell me :/
Click to expand...
Click to collapse
OK, then let's forget about the ListView if you just want to modify your existing app with as little effort as possible.
Try that in your Java code:
Code:
LinearLayout layout = findViewById(R.id.layout4);
layout.setClickable(true);
layout.setOnClickListener(new View.OnClickListener() {
[user=439709]@override[/user]
public void onClick(View v) {
Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse("market://details?id=" + pkg); //Your package name here
if (getActivity().getPackageManager().queryIntentActivities(intent, 0).size() > 0) {
startActivity(intent);
} else {
Toast.makeText(getActivity(), "Google Play is not installed on the device.", Toast.LENGTH_LONG).show();
}
}
});
(The word Override has to be written with a capital letter at the beginning. XDA does not allow that.)
But if I understand well that code, it will make a "link case" in the whole scroll layout no?
Or a link for each app?
If it's not possible to cut the horizontal scroll in little squares (links), is that possible to put a hyperlink on each imageview? So that click on the icon shows the store.
Lyechee said:
But if I understand well that code, it will make a "link case" in the whole scroll layout no?
Or a link for each app?
If it's not possible to cut the horizontal scroll in little squares (links), is that possible to put a hyperlink on each imageview? So that click on the icon shows the store.
Click to expand...
Click to collapse
Yes, it does. I thought that the Linear layout was loaded as the layout for each app.
Ok. I think that the RelativeLayout in the MainActivity.java is your row, right?
If it is, that should work:
Code:
apexApp.setClickable(true);
apexApp.setOnClickListener(new View.OnClickListener() {
[user=439709]@override[/user]
public void onClick(View v) {
Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse("market://details?id=" + pkg); //Your package name here
if (getActivity().getPackageManager().queryIntentActivities(intent, 0).size() > 0) {
startActivity(intent);
} else {
Toast.makeText(getActivity(), "Google Play is not installed on the device.", Toast.LENGTH_LONG).show();
}
}
});
Yeah, each RelativeLayout is an app square. I'm not at home so I can't test it now, will later in the evening, thanks for your help!
Lyechee said:
Yeah, each RelativeLayout is an app square. I'm not at home so I can't test it now, will later in the evening, thanks for your help!
Click to expand...
Click to collapse
Welcome.
Hello! I'm in front of a problem.
I wanted to face it alone, but I don't manage it..
I have had a problem with "uri", and after googleing, I've found that I had to import it.
But my problem is that I get that error:
Code:
The method getActivity() is undefined for the type new View.OnClickListener(){}
Any idea?
Lyechee said:
Hello! I'm in front of a problem.
I wanted to face it alone, but I don't manage it..
I have had a problem with "uri", and after googleing, I've found that I had to import it.
But my problem is that I get that error:
Code:
The method getActivity() is undefined for the type new View.OnClickListener(){}
Any idea?
Click to expand...
Click to collapse
Ah, you're right. I'm sorry.
I copied the code from one of my fragments. Just delete the getActivity().
So it is:
Code:
apexApp.setClickable(true);
apexApp.setOnClickListener(new View.OnClickListener() {
[user=439709]@override[/user]
public void onClick(View v) {
Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse("market://details?id=" + pkg); //Your package name here
if (getPackageManager().queryIntentActivities(intent, 0).size() > 0) {
startActivity(intent);
} else {
Toast.makeText(MainActivtiy.this, "Google Play is not installed on the device.", Toast.LENGTH_LONG).show(); //replace the MainActivity by your Activity
}
}
});
Works like a charm, thank you a lot Exactly what I wanted
If you need a graphist, I'm your man
PS: Is there a tool in Eclipse to make blocks of code lines? I mean, put them in blocs and then hide what you don't need.
Lyechee said:
Works like a charm, thank you a lot Exactly what I wanted
If you need a graphist, I'm your man
PS: Is there a tool in Eclipse to make blocks of code lines? I mean, put them in blocs and then hide what you don't need.
Click to expand...
Click to collapse
Yeah, there should be a minus on the left side next to each method. Click on it to hide the method.
Want to be added? [INDEX] List of themers and designers
I just discovered how to use the action bar to have a OptionsMenu. I just solved a problem with it and I wanted to know if I did it the right way.
What I did
So, I added the menu to a fragment started by an activity, adding to it the setHasOptionsMenu(true) in the onCreate method and setting up the two convenience methods public void onCreateOptionsMenu() and public boolean onOptionsItemSelected() of course setting up the xml first.
The problem
Now, if I rotate my device in landscape mode the button in the action bar duplicates. If I put it in portrait mode again, the number of items stays the same (I'm sure it doesn't actually increase, checked the size in different ways) though.
What I thought and how I solved it
So, I was thinking about some fragment overlaps, but if they actually overlap then I shouldn't notice anything, right?
Is the menu being recreated, while not destroyed when the fragment is destroyed?
I solved the problem removing the item in the menu, in the Fragment.onDestroy() method manually.
Is the menu supposed to be cleared manually, or there is something wrong with my code (eg. fragments overlapping, etc..) ?
domenicop said:
Is the menu supposed to be cleared manually, or there is something wrong with my code (eg. fragments overlapping, etc..) ?
Click to expand...
Click to collapse
Could you please post your code? That would make helping much easier.
nikwen said:
Could you please post your code? That would make helping much easier.
Click to expand...
Click to collapse
Of course. Thanks for the interest.
This is the onCreate method of MainActivity.java, from where I handle the arrangement of fragments on the screen.
Also, place check my comment under the line "Log.d(TAG, "Orientation Portrait detected.");", where I try to explain why I handle fragments in that specific way. It's the way I understood it, but I'm not sure if that's correct.
Code:
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
// Initialize the mDatabase
mContactsDatabase = ContactsDatabase.getInstance(getApplicationContext());
// Determine device orientation
mDualPane = getResources().getConfiguration().orientation == Configuration.ORIENTATION_LANDSCAPE;
// Set the fragment that will be changed
mFragmentToReplace = mDualPane ? R.id.contactsPagerFragmentContainer : R.id.portraitFragmentContainer;
// Set up the GUI
FragmentManager fm = getSupportFragmentManager();
if (!mDualPane) {
Log.d(TAG, "Orientation Portrait detected.");
// First, look for previously saved fragments
// findByFragmentId(int id) look for the fragment that was previously associated
// to the resource that has for id the argument passed in. Then, we try to cast it
// to the type of fragment we want, and if that goes all right, we have our fragment.
// Else, null will be returned.
mContactListFragment = (ContactListFragment) fm.findFragmentById(R.id.portraitFragmentContainer);
if (mContactListFragment == null) {
mContactListFragment = ContactListFragment.newInstance(mContactsDatabase);
fm.beginTransaction()
.replace(R.id.portraitFragmentContainer, mContactListFragment)
.commit();
}
}
else {
Log.d(TAG, "Orientation Landscape detected.");
// First, look for previously saved fragments
mContactListFragment = (ContactListFragment) fm.findFragmentById(R.id.landscapeFragmentContainer);
mContactsPagerFragment = (ContactsPagerFragment) fm.findFragmentById(R.id.contactsPagerFragmentContainer);
if (mContactListFragment == null) {
mContactListFragment = ContactListFragment.newInstance(mContactsDatabase);
fm.beginTransaction()
.replace(R.id.contactListFragmentContainer, mContactListFragment)
.commit();
}
if (mContactsPagerFragment == null) {
final int FIRST_CONTACT_POSITION = 0;
mContactListFragment = ContactListFragment.newInstance(mContactsDatabase);
mContactsPagerFragment =
ContactsPagerFragment.newInstance(FIRST_CONTACT_POSITION, mContactsDatabase);
fm.beginTransaction()
.replace(R.id.contactsPagerFragmentContainer, mContactsPagerFragment)
.commit();
}
}
}
This are the relevant pieces of the ContactListFragment.java, that have something to do with the menu
Note that I changed the way I checked for double menu entries.
Now I check if (menu.size() != 1), because I have just one item in there.
If I remove that clause, there will be two item in the menu after rotating to landscape mode, and if I take the device back to portrait mode, the two items will remain two. That's so even if I change from landscape to portrait and vice versa a hundred times from now, the menu items will always be two.
Code:
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setHasOptionsMenu(true);
Bundle args = getArguments();
mDatabase = (ContactsDatabase) args.getSerializable(DATABASE);
}
@Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
super.onCreateOptionsMenu(menu, inflater);
if (menu.size() != 1) {
inflater.inflate(R.menu.contact_list_fragment_menu, menu);
}
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.addContactMenu:
mCallback.onAddContactMenuOptionSelected();
default:
return super.onOptionsItemSelected(item);
}
}
domenicop said:
I just discovered how to use the action bar to have a OptionsMenu. I just solved a problem with it and I wanted to know if I did it the right way.
What I did
So, I added the menu to a fragment started by an activity, adding to it the setHasOptionsMenu(true) in the onCreate method and setting up the two convenience methods public void onCreateOptionsMenu() and public boolean onOptionsItemSelected() of course setting up the xml first.
The problem
Now, if I rotate my device in landscape mode the button in the action bar duplicates. If I put it in portrait mode again, the number of items stays the same (I'm sure it doesn't actually increase, checked the size in different ways) though.
What I thought and how I solved it
So, I was thinking about some fragment overlaps, but if they actually overlap then I shouldn't notice anything, right?
Is the menu being recreated, while not destroyed when the fragment is destroyed?
I solved the problem removing the item in the menu, in the Fragment.onDestroy() method manually.
Is the menu supposed to be cleared manually, or there is something wrong with my code (eg. fragments overlapping, etc..) ?
Click to expand...
Click to collapse
I agree with nikwen but broadly the idea is...
- the menu belongs to the Activity not the Fragment.
- for an Activity for which you'd like an options menu you override onCreateOptionsMenu and do 2 things...
1/ call menu.add(...) for each menu item
2/ return 'true' at the end, so that your menu can be displayed
Also, see the Activity docs for onCreateOptionsMenu()
"This is only called once, the first time the options menu is displayed.
To update the menu every time it is displayed, see onPrepareOptionsMenu(Menu)."
If you want to add menu options to the Activity menu from within a Fragment you can also..
- override setHasOptionsMenu() in Fragment to return true
- override onCreateOptionsMenu() to add any items you like (just like you did at the Activity level)
- override onDestroyOptionsMenu()
The key thing here is that onCreateOptionsMenu() in Fragment is adding to the Activity menu.
It's hard to see without debugging exactly what's going on here but watch for calls to all of the above methods in Activity and Fragment and that will probably tell you what's going on.
If it is possible to control all menu options at the Activity level instead of the Fragment level, I would do that.
If not, and you need to use the Fragment menu methods, beware of Android's Fragment management (saving / restoring state)
Also, make sure your Fragments have an ID and/or tag.
(from the docs..)
"The fragment being instantiated must have some kind of unique identifier so that it can be re-associated with a previous instance if the parent activity needs to be destroyed and recreated. This can be provided these ways:
If nothing is explicitly supplied, the view ID of the container will be used.
android:tag can be used in <fragment> to provide a specific tag name for the fragment.
android:id can be used in <fragment> to provide a specific identifier for the fragment."
Finally, if all else fails, using Menu's findItem() before calling add() would be a safeguard, I suppose.
---------- Post added at 10:14 PM ---------- Previous post was at 09:52 PM ----------
domenicop said:
Of course. Thanks for the interest.
Click to expand...
Click to collapse
Sorry caught in the crossfire - have only just seen your code.
I think much of the above applies.
Set the menu up in the Activity instead of the Fragment, if you can.
I would also consider using layout-port and layout-land to control your two different layouts.
PicomatStudios said:
I agree with nikwen but broadly the idea is...
- the menu belongs to the Activity not the Fragment.
- for an Activity for which you'd like an options menu you override onCreateOptionsMenu and do 2 things...
1/ call menu.add(...) for each menu item
2/ return 'true' at the end, so that your menu can be displayed
Also, see the Activity docs for onCreateOptionsMenu()
"This is only called once, the first time the options menu is displayed.
To update the menu every time it is displayed, see onPrepareOptionsMenu(Menu)."
If you want to add menu options to the Activity menu from within a Fragment you can also..
- override setHasOptionsMenu() in Fragment to return true
- override onCreateOptionsMenu() to add any items you like (just like you did at the Activity level)
- override onDestroyOptionsMenu()
The key thing here is that onCreateOptionsMenu() in Fragment is adding to the Activity menu.
It's hard to see without debugging exactly what's going on here but watch for calls to all of the above methods in Activity and Fragment and that will probably tell you what's going on.
If it is possible to control all menu options at the Activity level instead of the Fragment level, I would do that.
If not, and you need to use the Fragment menu methods, beware of Android's Fragment management (saving / restoring state)
Also, make sure your Fragments have an ID and/or tag.
(from the docs..)
"The fragment being instantiated must have some kind of unique identifier so that it can be re-associated with a previous instance if the parent activity needs to be destroyed and recreated. This can be provided these ways:
If nothing is explicitly supplied, the view ID of the container will be used.
android:tag can be used in <fragment> to provide a specific tag name for the fragment.
android:id can be used in <fragment> to provide a specific identifier for the fragment."
Finally, if all else fails, using Menu's findItem() before calling add() would be a safeguard, I suppose.
---------- Post added at 10:14 PM ---------- Previous post was at 09:52 PM ----------
Sorry caught in the crossfire - have only just seen your code.
I think much of the above applies.
Set the menu up in the Activity instead of the Fragment, if you can.
I would also consider using layout-port and layout-land to control your two different layouts.
Click to expand...
Click to collapse
Wow. thanks for that detailed answer. :good: (Why have I used all my thanks?)
I've always put it into the Activity as well but it might make sense to add it to the Fragment sometimes. For example if you need the same Fragment in multiple Activities...
In that case you'd need to add a listener to the item in the Fragment method though.
@PicomatStudio Thank you for the detailed answer, I really appreciate that =)
Now I'm creating the menu in the activity and I don't have to worry about the fragments life cycle anymore.
The only problem is: I didn't get the menuInflater for free here, I guess it's because of the fact that in the Fragment scenario, I had to use the Activity inflater, whereas here in the activity, I can get my own, with getMenuInflater().
Here's the way I modified it, now is in MainActivity.java.
Please report back if you find something strange
Code:
@Override
public boolean onCreateOptionsMenu(Menu menu) {
if (getSupportFragmentManager().findFragmentByTag(CONTACT_LIST_FRAGMENT) != null)
getMenuInflater().inflate(R.menu.contact_list_fragment_menu, menu);
return super.onCreateOptionsMenu(menu);
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.addContactMenu:
onAddContactMenuOptionSelected();
default:
return super.onOptionsItemSelected(item);
}
}
domenicop said:
@PicomatStudio Thank you for the detailed answer, I really appreciate that =)
Now I'm creating the menu in the activity and I don't have to worry about the fragments life cycle anymore.
The only problem is: I didn't get the menuInflater for free here, I guess it's because of the fact that in the Fragment scenario, I had to use the Activity inflater, whereas here in the activity, I can get my own, with getMenuInflater().
Here's the way I modified it, now is in MainActivity.java.
Please report back if you find something strange
Code:
@Override
public boolean onCreateOptionsMenu(Menu menu) {
if (getSupportFragmentManager().findFragmentByTag(CONTACT_LIST_FRAGMENT) != null)
getMenuInflater().inflate(R.menu.contact_list_fragment_menu, menu);
return super.onCreateOptionsMenu(menu);
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.addContactMenu:
onAddContactMenuOptionSelected();
default:
return super.onOptionsItemSelected(item);
}
}
Click to expand...
Click to collapse
I don't tend to use MenuInflater (just menu.add()..)
But looking at the docs it takes a Context so could you do..
Code:
new MenuInflater(this);
.. from your Activity ?
On a general design point the less your Activity depends on its Fragments the better, I reckon.
domenicop said:
The only problem is: I didn't get the menuInflater for free here, I guess it's because of the fact that in the Fragment scenario, I had to use the Activity inflater, whereas here in the activity, I can get my own, with getMenuInflater().
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Well, you can get one:
Code:
getActivity().getMenuInflater();
Could you help. I am trying to make an app that when a button is pressed it opens a certain activity in one app, a different one. How would you make that. I am stuck. It can be hard coded. I am not home now but later I will post the code I have so far. Thanks.
JonanomisK said:
Could you help. I am trying to make an app that when a button is pressed it opens a certain activity in one app, a different one. How would you make that. I am stuck. It can be hard coded. I am not home now but later I will post the code I have so far. Thanks.
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Click to collapse
Code:
Button button = (Button) findViewById(R.id.button);
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
startActivity(new Intent(context, NewActivity.class));
}
});
Simples
Jonny said:
Code:
Button button = (button) findViewById(R.id.button);
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
startActivity(new Intent(context, NewActivity.class));
}
});
Simples
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Thanks! I'll try implementing that later.