I hope you can give me a hand on this one.
I have an Action bar item with a default icon set.(android:icon="#drawable/ic_action_volume_on")
but the thing is that i need to change it somehow programmatically at my method "onOptionsItemSelected" and since I recently started with Android I'm a bit lost...
First you have to save a menu instance on the onCreateOptionsMenu:
private Menu menu;
#Override
public boolean onCreateOptionsMenu(final Menu menu) {
this.menu = menu
...
}
Then, you can create the following method:
private void setItemView(int itemId, int layoutId) {
if (menu != null) {
final Menuitem myItem = menu.findItem(itemId);
if (myItem != null) {
MenuItemCompat.setActionView(myItem, layoutId);
}
}
}
It replaces the current icon of your item by a view. For example if you want to display a ProgressBar you can create this layout (let's name it item_custom_view.xml):
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="56dp"
android:layout_height="wrap_content"
android:minWidth="56dp" >
<ProgressBar
android:layout_width="32dp"
android:layout_height="32dp"
android:layout_gravity="center" />
</FrameLayout>
Finally, in your Activity, just call the setItemView method. Put in parameters the id of your item and the id of your layout (in this case R.layout.item_custom_view).
You can do this simply by defining
private Menu menu;
and in onCreateOptionMenu callback assign value to menu and get menu inflater like this
#Override
public boolean onCreateOptionsMenu(Menu menu) {
this.menu=menu;
getMenuInflater().inflate(R.menu.menu_bar, menu);
return true;
}
And finally you can write this line to change icon in your preferred method
menu.findItem(R.id.item_id).setIcon(R.drawable.your_icon);
Related
I'm inflating the menu and trying to find the view of one of the menu items in the following way:
#Override
public boolean onCreateOptionsMenu(final Menu menu) {
getMenuInflater().inflate(R.menu.main, menu);
// will print `null`
Log.i("TAG", String.valueOf(findViewById(R.id.action_hello)));
return true;
}
In the result null is printed in Logcat. However if I add some delay before calling findViewById, it returns correct View object:
#Override
public boolean onCreateOptionsMenu(final Menu menu) {
getMenuInflater().inflate(R.menu.main, menu);
new AsyncTask<Void, Void, Void>() {
#Override
protected Void doInBackground(final Void... voids) {
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
e.printStackTrace();
}
return null;
}
#Override
protected void onPostExecute(final Void aVoid) {
// will print correctly android.support.v7.view.menu.ActionMenuItemView...
Log.i("TAG", String.valueOf(findViewById(R.id.action_hello)));
}
}.execute();
return true;
}
Of course this solution is very dirty and the minimal delay is unknown. Is there a way to register some callback for the menu inflated event. In other words: how can I call findViewById with the menu item id to be sure that the view is already there and this call won't return null?
Just override public void onPrepareOptionsMenu(Menu menu).
Documentation says:
This is called right before the menu is shown, every time it is shown.
You can use this method to efficiently enable/disable items or
otherwise dynamically modify the contents.
The view for Menu is created after calling onCreateOptionsMenu(Menu), that's why you can't access it subviews.
There are two ways to find the menu item view.
Frist way:-
Add a actionViewClass in your menu item, so that you can get view returned by getActionView. As getActionView() only works if there's a actionView defined for menuItem.
Add this in your menu item xml:-
<item
android:id="#+id/menuAdd"
android:icon="#android:drawable/ic_menu_add"
android:title="Add"
app:showAsAction="always"
app:actionViewClass="android.widget.ImageButton" />
In onCreateOptionsMenu method:-
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.menu_item,menu);
View menuView=menu.findItem(R.id.menuAdd).getActionView();
Log.e("TAG", "onCreate: "+menuView );
return true;
}
Second way:-
The second way is to use a handler. Using this method you won't need to specify the time for the delay. Check the answer given by #davehenry here
You must call the super method when your code is finished or things just don't work as expected.
#Override
public boolean onCreateOptionsMenu(final Menu menu) {
getMenuInflater().inflate(R.menu.main, menu);
super.onCreationOptionsMenu(menu);
// calling the super completes the method now you code.
Log.i("TAG", String.valueOf(findViewById(R.id.action_hello)));
return true;
}
This way you get the menu item's id and its actionview:
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.menu, menu);
MenuItem mi = menu.findItem(R.id.action_hello);
int id = mi.getItemId();
Log.i("TAG", String.valueOf(id));
View actionView = mi.getActionView();
if (actionView == null) {
Log.i("TAG", "ActionView is null");
} else {
Log.i("TAG", "ActionView is NOT null");
}
return true;
}
Posting Runnable to the Handler queue would usually have that Runnable executed after the main UI thread finished with the currently being executed method part of the Activity's lifecycle, hence it would be a good chance to get what you want there. I do need to note that it's a trick which could fail if underestimated and not well tested but it has worked for me ever since I figured it out.
#Override
public boolean onCreateOptionsMenu(final Menu menu) {
getMenuInflater().inflate(R.menu.main, menu);
new Handler(getMainLooper()).post(new Runnable() {
#Override
public void run() {
Logger.LogI(TAG, "run: " + findViewById(R.id.action_hello));
}
});
return true;
}
Create a global variable for future use:
private ImageButton actionHelloView;
Then, in your onCreateOptionsMenu:
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
super.onCreateOptionsMenu(menu);
getMenuInflater().inflate(R.menu.menu_main, menu);
actionHelloView = (ImageButton) menu.findItem(R.id.action_hello).getActionView();
Log.i("the view is: ", String.valueOf(actionHelloView));
return true;
}
Put this in your XML:
<menu xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
tools:context="com.test.teststack.MainActivity">
<item
android:id="#+id/action_hello"
android:title="#string/action_settings"
app:showAsAction="never"
app:actionViewClass="android.widget.ImageButton"/>
</menu>
Note:
depending on your API version, you can switch between app:actionViewClass and android:actionViewClass in your xml.
Result in LOGCAT:
07-25 17:55:07.138 9491-9491/? I/the view is:: android.widget.ImageButton{5542a5c VFED..C.. ......I. 0,0-0,0 #7f080011 app:id/action_hello}
You don't mention why you want to find the menu item view and that may have some bearing on the answer that you are looking for. However, if you want to use findViewById() to find a menu view then this is one way to do it. The following example just changes a menu icon from an "X" to a check mark.
ViewTreeObserver.OnGlobalLayoutListener will be invoked right after layout of the toolbar in the following code. It is along the same lines as your delay, but it is the acceptable way to do this type of processing.
Alternately, the program can invoke menu.findItem(R.id.action_hello) in onPrepareOptionsMenu(). Unfortunately, the toolbar is not fully formed at this point, so a findViewById() will fail.
MainActivity.xml
public class MainActivity extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
final Toolbar toolbar = findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
setTitle("");
toolbar.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
#Override
public void onGlobalLayout() {
ActionMenuItemView view = toolbar.findViewById(R.id.action_hello);
if (view != null) {
// onGlobalLayout may be called before toolbar is fully defined.
Log.d("onGlobalLayout", "<<<<view is not null");
// Uncomment this view to make the change to the icon here. Android Studio
// will complain about a library group, but that can be ignored for this demo.
// view.animate() might be a better demo here.
view.setIcon(getResources().getDrawable(R.drawable.ic_check));
toolbar.getViewTreeObserver().removeOnGlobalLayoutListener(this);
}
}
});
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
#Override
public boolean onPrepareOptionsMenu(Menu menu) {
// Uncomment the following line to change the icon here.
// menu.findItem(R.id.action_hello).setIcon(getResources().getDrawable(R.drawable.ic_check));
return true;
}
}
main.xml
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto">
<item
android:id="#+id/action_hello"
android:icon="#drawable/ic_x"
android:title="Item1"
app:showAsAction="ifRoom" />
</menu>
activity_main.xml
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:layoutDirection="ltr"
android:padding="0px"
android:theme="#style/ThemeOverlay.AppCompat.ActionBar"
app:contentInsetEnd="0px"
app:contentInsetEndWithActions="0px"
app:contentInsetLeft="0px"
app:contentInsetRight="0px"
app:contentInsetStart="0px"
app:contentInsetStartWithNavigation="0px"
app:logo="#null"
app:title="#null"
app:titleMargin="0px"
app:titleTextColor="#757575"
tools:ignore="UnusedAttribute"
tools:title="toolbar">
</android.support.v7.widget.Toolbar>
</FrameLayout>
In onCreateOptionsMenu(), when you call
findViewById(R.id.action_hello)
this searches in the View hierarchy starting with your "content root". Since the menu you inflated hasn't been attached to the content root yet, it is likely this will return null.
You should be able to post a Runnable to a Handler that will find the View you want. This should be called after you return from onCreateOptionsMenu() and Android has attached the menu views to the content root. You shouldn't need any delay. You just need to wait until the framework has completed the creation of the options menu.
Inflating your menu is not asynchronous, so you are able to find the item exactly where you are doing so - although onPrepareOptionsMenu is probably the more correct place to do so.
What you cannot do is use findItemById, which looks in the currently showing layout (not your collapsed menu), instead you must use menu.findItem() (or menu.getItem())
If you really need to work with the view of the Item (vs the MenuItem object) you can use menu.findItem().getActionView()
I've tried already all possible solutions. Here's my code:
private Menu mMenu;
#Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
inflater.inflate(R.menu.fragment_article_detail_menu, menu);
mMenu = menu;
}
void changeStar(boolean added) {
if (mMenu != null) {
MenuItem item = mMenu.findItem(R.id.favourites_item);
if (added) {
Log.d(LOG_TAG, "Set full icon");
item.setIcon(getResources().getDrawable(R.drawable.star_full));
} else {
Log.d(LOG_TAG, "Set empty icon");
item.setIcon(getResources().getDrawable(R.drawable.star_empty));
}
}
}
Here is my menu xml file:
<menu xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
tools:context="ssidit.pp.ua.payspacereader.ArticleDetailActivity">
<item
android:id="#+id/refresh_item"
android:title="#string/refresh"
app:showAsAction="never"></item>
<item
android:id="#+id/favourites_item"
android:icon="#drawable/star_empty"
android:title="#string/add_to_favourite"
app:showAsAction="ifRoom"></item>
<item
android:id="#+id/share_item"
android:icon="#drawable/ic_share"
android:title="#string/share"
app:actionProviderClass="android.support.v7.widget.ShareActionProvider"
app:showAsAction="ifRoom"></item>
</menu>
invalidateMenu() method doesn't help. When I call setIcon method, nothing changes on my android device.
Here is my code:
private boolean isFavourite;
private void setValues(Cursor cursor) {
Log.d(LOG_TAG, "Setting values");
setData(titleTextView, CursorUtility.getTitle(cursor));
setData(dateTextView, CursorUtility.getDateText(cursor));
setData(timeTextView, CursorUtility.getTimeText(cursor));
isFavourite = CursorUtility.isFavourite(cursor);
getActivity().invalidateOptionsMenu();
}
#Override
public void onPrepareOptionsMenu(Menu menu) {
super.onPrepareOptionsMenu(menu);
Log.d(LOG_TAG, "OnPrepareOptionsMenu");
MenuItem item = menu.findItem(R.id.favourites_item);
if (isFavourite) {
Log.d(LOG_TAG, "Set full icon");
item.setIcon(R.drawable.star_full);
} else {
Log.d(LOG_TAG, "Set empty icon");
item.setIcon(R.drawable.star_empty);
}
}
As you can see, everything is logged. So there can't be mistake if some method doesn't call. Also I checked item by getting title of it. It is right item. Just some kind of black magic.
Try using invalidateOptionsMenu and move your changeStar logic to onPrepareOptionsMenu. From Android documentation:
public boolean onPrepareOptionsMenu (Menu menu)
Added in API level 1
Prepare the Screen's standard options menu to be displayed. This is called right before the menu is shown, every time it is shown. You can use this method to efficiently enable/disable items or otherwise dynamically modify the contents.
The default implementation updates the system menu items based on the activity's state. Deriving classes should always call through to the base class implementation.
Firstly: make a global variable of menu
Secondly: wherever in activity you want to change the icon just get that menu item by global variable menu using getItem() method instead of findItem.
Thirdly: set the icon to your menuItem returned by getItem() as follow menuItem.setIcon(res)
In AA+AppCompat, I try to change below code in Activity to AA-style.
#Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater menuInflater = getMenuInflater();
menuInflater.inflate(R.menu.menu_done, menu);
MenuItem menuItem = menu.findItem(R.id.itemDone);
View menuView = MenuItemCompat.getActionView(menuItem);
mButtonQuestionPost = (Button) menuView.findViewById(R.id.buttonMenuDone);
mButtonQuestionPost.setOnClickListener(this);
return super.onCreateOptionsMenu(menu);
}
First, changed head of Activity as below. The menu was shown as expected.
#EActivity(R.layout.activity_question_post)
#OptionsMenu(R.menu.menu_done)
public class QuestionPostActivity extends FragmentActivity {...
And, try to do button click method as below but nothing fired. I changed #Click with #OptionsItem or changed attributes this and that but no luck.
#Click(R.id.buttonMenuDone)
void buttonMenuDone(){
if (mQuestionPostFragment.validatePost()) {
setSupportProgressBarIndeterminate(true);
mQuestionPostFragment.postQuestion();
}
}
menu.xml is as below. Note that I'm using actionLayout for design purpose.
<item
android:id="#+id/itemDone"
android:title="#string/done"
app:showAsAction="always"
android:menuCategory="system"
app:actionLayout="#layout/item_menu_done"
/>
item_menu_done is as below.
<Button
android:layout_width="48dp"
android:layout_height="?actionBarSize"
android:id="#+id/buttonMenuDone"
android:text="#string/done"
android:textColor="#android:color/white"
android:textSize="14sp"
android:background="?attr/actionBarItemBackground"
/>
The AA-generated file does not have MenuItemCompat.getActionView(menuItem), but hardly to make it with AA. Can someone please help me?
I am afraid you cannot bind a listener with #Click to a menu action view, since Activity.findViewById cannot find that view inside the menu items. What you can do is injecting the menuitem, then, manually bind your listener as you already did.
#EActivity(R.layout.activity_question_post)
#OptionsMenu(R.menu.menu_done)
public class QuestionPostActivity extends FragmentActivity {
#OptionsMenuItem(R.id.menuItemDone)
MenuItem buttonMenuDone;
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// this will be called by the generated subclass after it injected the menu
MenuItemCompat.getActionView(itemDone).findViewById(R.id.buttonMenuDone).setOnClickListener(this);
return true;
}
}
In case someone needs it, nowadays you can use the OptionsItem() annotation like so:
//Even with system items
#OptionsItem(android.R.id.home)
void onHomeItemClicked() {
finish();
}
//Or your custom ones
#OptionsItem(R.id.buttonMenuDone)
void onMenuDoneItemClicked() {
//Do your stuff
}
I have a Sherlock Fragment Activity in which there are 3 Fragments.
Fragment A, Fragment B, Fragment C are three fragments. I want to show a done option menu in Fragment B only.
And the activity is started with Fragment A. When Fragment B is selected done button is added.
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setHasOptionsMenu(true);
}
#Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
if(!menusInflated){
inflater.inflate(R.menu.security, menu);
menusInflated=true;
}
super.onCreateOptionsMenu(menu, inflater);
}
When I again start Fragment A I want to options Menu DONE (which was set at Fragment B) for this I am doing like this
setHasOptionsMenu(false);
MenuItem item = (MenuItem) menu.findItem(R.id.done_item);
item.setVisible(false);
But this is not hiding at all, also it is giving NullPointerException when Activity if first started with Fragment A.
Please let me know what is the problem.
Try this...
You don't need to override onCreateOptionsMenu() in your Fragment class again. Menu items visibility can be changed by overriding onPrepareOptionsMenu() method available in Fragment class.
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setHasOptionsMenu(true);
}
#Override
public void onPrepareOptionsMenu(Menu menu) {
menu.findItem(R.id.action_search).setVisible(false);
super.onPrepareOptionsMenu(menu);
}
This is one way of doing this:
add a "group" to your menu:
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android" >
<group
android:id="#+id/main_menu_group">
<item android:id="#+id/done_item"
android:title="..."
android:icon="..."
android:showAsAction="..."/>
</group>
</menu>
then, add a
Menu menu;
variable to your activity and set it in your override of onCreateOptionsMenu:
#Override
public boolean onCreateOptionsMenu(Menu menu) {
this.menu = menu;
// inflate your menu here
}
After, add and use this function to your activity when you'd like to show/hide the menu:
public void showOverflowMenu(boolean showMenu){
if(menu == null)
return;
menu.setGroupVisible(R.id.main_menu_group, showMenu);
}
I am not saying this is the best/only way, but it works well for me.
To show action items (action buttons) in the ActionBar of fragments where they are only needed, do this:
Lets say you want the save button to only show in the fragment where you accept input for items and not in the Fragment where you view a list of items, add this to the OnCreateOptionsMenu method of the Fragment where you view the items:
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
if (menu != null) {
menu.findItem(R.id.action_save_item).setVisible(false);
}
}
NOTE: For this to work, you need the onCreate() method in your Fragment (where you want to hide item button, the item view fragment in our example) and add setHasOptionsMenu(true) like this:
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setHasOptionsMenu(true);
}
Might not be the best option, but it works and it's simple.
This will work for sure I guess...
// Declare
Menu menu;
MenuItem menuDoneItem;
// Then in your onCreateOptionMenu() method write the following...
#Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
this.menu=menu;
inflater.inflate(R.menu.secutity, menu);
}
// In your onOptionItemSelected() method write the following...
#Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.done_item:
this.menuDoneItem=item;
someOperation();
return true;
default:
return super.onOptionsItemSelected(item);
}
}
// Now Making invisible any menu item...
public void menuInvisible(){
setHasOptionsMenu(true);// Take part in populating the action bar menu
menuDoneItem=(MenuItem)menu.findItem(R.id.done_item);
menuRefresh.setVisible(false); // make true to make the menu item visible.
}
//Use the above method whenever you need to make your menu item visible or invisiable
You can also refer this link for more details, it is a very useful one.
MenuItem Import = menu.findItem(R.id.Import);
Import.setVisible(false)
Try this
#Override
public boolean onCreateOptionsMenu(Menu menu){
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.custom_actionbar, menu);
menu.setGroupVisible(...);
}
By setting the Visibility of all items in Menu, the appbar menu or overflow menu will be Hide automatically
Example
private Menu menu_change_language;
...
...
#Override
public boolean onCreateOptionsMenu(Menu menu) {
...
...
menu_change_language = menu;
menu_change_language.findItem(R.id.menu_change_language).setVisible(true);
return super.onCreateOptionsMenu(menu);
}
Before going to other fragment use bellow code:
if(menu_change_language != null){
menu_change_language.findItem(R.id.menu_change_language)
.setVisible(false);
}
Hello I got the best solution of this, suppose if u have to hide a particular item at on create Menu method and show that item in other fragment. I am taking an example of two menu item one is edit and other is delete. e.g menu xml is as given below:
sell_menu.xml
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto">
<item
android:id="#+id/action_edit"
android:icon="#drawable/ic_edit_white_shadow_24dp"
app:showAsAction="always"
android:title="Edit" />
<item
android:id="#+id/action_delete"
android:icon="#drawable/ic_delete_white_shadow_24dp"
app:showAsAction="always"
android:title="Delete" />
Now Override the two method in your activity & make a field variable mMenu as:
private Menu mMenu; // field variable
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.sell_menu, menu);
this.mMenu = menu;
menu.findItem(R.id.action_delete).setVisible(false);
return super.onCreateOptionsMenu(menu);
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
if (item.getItemId() == R.id.action_delete) {
// do action
return true;
} else if (item.getItemId() == R.id.action_edit) {
// do action
return true;
}
return super.onOptionsItemSelected(item);
}
Make two following method in your Activity & call them from fragment to hide and show your menu item. These method are as:
public void showDeleteImageOption(boolean status) {
if (menu != null) {
menu.findItem(R.id.action_delete).setVisible(status);
}
}
public void showEditImageOption(boolean status) {
if (menu != null) {
menu.findItem(R.id.action_edit).setVisible(status);
}
}
That's Solve from my side,I think this explanation will help you.
You can make a menu for each fragment, and a global variable that mark which fragment is in use now.
and check the value of the variable in onCreateOptionsMenu and inflate the correct menu
#Override
public boolean onCreateOptionsMenu(Menu menu) {
if (fragment_it == 6) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.custom_actionbar, menu);
}
}
Okay I spend couple of hour to get this solution.apparently you can get menuitem from your toolbar to anywhere in activity or fragment. So in my case.
var menuItem = toolbar.menu;
Now to get specfic item from menu item
favIcon = menuItem.findItem(R.id.favourite);
Note: favIcon is MenuItem declare global
Now if you can do whatever you want to do for this icon
eg. to make it invisible
favIcon?.isVisible=false
Even though the question is old and answered. There is a simpler answer to that than the above mentioned. You don't need to use any other variables.
You can create the buttons on action bar whatever the fragment you want, instead of doing the visibility stuff(show/hide).
Add the following in the fragment whatever u need the menu item.
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
inflater.inflate(R.menu.menu, menu);
super.onCreateOptionsMenu(menu, inflater);
}
Sample menu.xml file:
<menu xmlns:android="http://schemas.android.com/apk/res/android" >
<item
android:id="#+id/action_addFlat"
android:icon="#drawable/add"
android:showAsAction="ifRoom|withText"
android:title="#string/action_addFlat"/>
</menu>
Handling onclick events is as usual.
Late to the party but the answers above didn't seem to work for me.
My first tab fragment (uses getChildFragmentManager() for inner tabs) has the menu to show a search icon and uses android.support.v7.widget.SearchView to search within the inner tab fragment but navigating to other tabs (which also have inner tabs using getChildFragmentManager()) would not remove the search icon (as not required) and therefore still accessible with no function, maybe as I am using the below (ie outer main tabs with each inner tabs)
getChildFragmentManager();
However I use the below in my fragments containing/using the getChildFragmentManager() for inner tabs.
//region onCreate
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setRetainInstance(true);
//access setHasOptionsMenu()
setHasOptionsMenu(true);
}
//endregion onCreate
and then clear the menu item inside onPrepareOptionsMenu for fragments(search icon & functions)
#Override
public void onPrepareOptionsMenu(Menu menu) {
super.onPrepareOptionsMenu(menu);
//clear the menu/hide the icon & disable the search access/function ...
//this will clear the menu entirely, so rewrite/draw the menu items after if needed
menu.clear();
}
Works well and navigating back to the tab/inner tab with the search icon functions re displays the search icon & functions.
Hope this helps...
For some reason the method was not working for me this is how I solved it according to the accepted solution
//This should be in on create
new Handler().postDelayed(new Runnable() {
#Override
public void run() {
showOverflowMenu(false);
}
},100);
#Override
public boolean onCreateOptionsMenu(Menu menu) {
this.menu = menu;
getMenuInflater().inflate(R.menu.options_menu, menu);
return true;
}
public void showOverflowMenu(boolean showMenu){
if(menu == null)
return;
menu.setGroupVisible(R.id.grp, showMenu);
}
When you long click on email item in Gmail application (Honeycomb) the context-like menu is shown with it's items animated on start. How this is made? Thanks.
You cannot animate MenuItems, so the trick is to set a same looking View in its place with MenuItem.setActionView() and animate that view as you would normally and then unset it when animation is done with MenuItem.setActionView(null)
public class MainFragment extends Fragment {
private Menu mOptionsMenu;
#Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
mOptionsMenu = menu;
inflater.inflate(R.menu.fragment_main, menu);
}
private void animateActionBarItem() {
final MenuItem refreshItem = mOptionsMenu.findItem(R.id.action_refresh);
refreshItem.setActionView(R.layout.actionbar_foo);
refreshItem.getActionView()
.animate()
.setInterpolator(new AccelerateInterpolator())
.setDuration(100L)
.scaleX(2F)
.scaleY(2F)
.withEndAction(new Runnable() {
#Override
public void run() {
refreshItem.setActionView(null);
}
});
}
}
XML for R.layout.actionbar_foo
<?xml version="1.0" encoding="utf-8"?>
<ImageView xmlns:android="http://schemas.android.com/apk/res/android"
style="?android:attr/actionButtonStyle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/ic_action_accept" />
Take a look at my answer here. It is related to the layout changes of the parent of menu items, but if you look at my idea there, you will catch a glimpse how to animate menu items.
Take a look here. You can animate any view calling an animation to start on it.