I have menu file like
<menu xmlns:android="http://schemas.android.com/apk/res/android" >
<item
android:id="#+id/action_select_all"
android:orderInCategory="100"
android:showAsAction="never"
android:title="#string/action_select_all"/>
<item
android:id="#+id/action_deselect_all"
android:orderInCategory="100"
android:showAsAction="never"
android:title="#string/action_deselect_all"
android:visible="false"/>
</menu>
and i want to show only one at a time, when i click on one, other show be invisible. can we not get activity's menu by any method of activity.
In onCreateOptionsMenu(Menu menu)
after inflate do this
if (CONDITION) {
MenuItem item = menu.findItem(R.id.action_select_all);
item.setVisible(false);
}
else
{
MenuItem item = menu.findItem(R.id.action_deselect_all);
item.setVisible(false);
}
Make sure that you call invalidateOptionsMenu(); when you need to refresh menu
Related
In my app i have one activity with two fragment, the app has a toolbar with search action, that search action must be visible only in the second fragment.
So how could i hide the search button and show it only when i'm in fragment2?
My menu.xml looks like this:
<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="it.gabtamagnini.visualstock.MainActivity">
<item
android:id="#+id/action_settings"
android:orderInCategory="100"
android:title="#string/action_settings"
app:showAsAction="never" />
<item
android:id="#+id/app_bar_search"
android:icon="#drawable/ic_search_black_24dp"
android:title="#string/cerca"
app:showAsAction="ifRoom|withText"
app:actionViewClass="android.widget.SearchView" />
</menu>
I'm using kotlin
In your second fragment:
#Override
public void onPrepareOptionsMenu(Menu menu) {
MenuItem item = menu.findItem(R.id.app_bar_search);
if(item != null)
{
item.setVisible(false);
}
}
I solved by adding the following code in my onViewCreated
setHasOptionsMenu(true)
And i had to override the onPrepareOptionsMenu like this:
override fun onPrepareOptionsMenu(menu: Menu) {
super.onPrepareOptionsMenu(menu)
val item: MenuItem = menu.findItem(R.id.app_bar_search)
item.isVisible = true
}
Settings menu is created in activity_settingsmenu.xml .
Settings icon is in activity_settingsicon.xml .
How to link both the activities so that on clicking settings icon, the settings menu will be displayed?
(Just started learning Android Application development - beginner)
create menu folder in res.Create xml for e.g menu_main.xml under menu folder.
<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="in.nfnlabs.stormit.Parent">
<item
android:id="#+id/action_settings"
android:orderInCategory="100"
android:title="#string/action_settings"
app:showAsAction="never" />
</menu>
If u want to add icon, use this:
<item android:id="#+id/action_settings"
android:title="#string/action_settings"
android:icon="#drawable/bookmark"
android:orderInCategory="100"
app:showAsAction="always" />
In your activity class inflate the menu like below:
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.addnew, menu);
return true;
}
If you want to perform actions in menu this can be achieved by onOptionsItemSelected
public boolean onOptionsItemSelected(MenuItem item) {
int i = item.getItemId();
if(i==R.id.action_settings) {
Toast.makeText(getApplicationContext(), "Bookmark", Toast.LENGTH_SHORT).show();
}
}
I need to show the submenu below the bar, not on top of the bar itself.
Copying my actionbar xml below
<menu xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools" tools:context=".MainActivity">
<item
android:id="#+id/action_pages"
android:orderInCategory="1"
android:showAsAction="withText|always"
android:icon="#drawable/ic_action_pages"
android:title="">
<menu>
<item android:id="#+id/item1" android:title="Placeholder"></item>
</menu>
</item>
</menu>
In the activity (App also has a navigation drawer)
public boolean onCreateOptionsMenu(Menu menu) {
if (!mNavigationDrawerFragment.isDrawerOpen()) {
getMenuInflater().inflate(R.menu.main, menu);
restoreActionBar();
return true;
}
return super.onCreateOptionsMenu(menu);
}
Simply.
<style name="AppTheme" parent="AppBaseTheme">
<item name="actionOverflowMenuStyle">#style/OverflowMenu</item>
</style>
<style name="OverflowMenu" parent="Widget.AppCompat.PopupMenu.Overflow">
<!-- Required for pre-Lollipop. -->
<item name="overlapAnchor">false</item>
<!-- Required for Lollipop. -->
<item name="android:overlapAnchor">false</item>
</style>
Preamble
As usual, I faced a strange problem while developing an Android app, tried to find a solution and landed to this question. As it was in many cases before, there is no an answer. So I was compelled to solve the problem from scratch and now posting the answer with my workaround.
Input
I have an Android app with action bar and some menu items, which have to be extended with dropdown submenu. First attempt was to implement it as suggested by Android documentation. So I added new menu item menu_sort into existing action bar menu and sub-menu container into it:
<menu xmlns:android="http://schemas.android.com/apk/res/android" >
<item android:id="#+id/id1" android:icon="#drawable/ic_1"
android:title="#string/id1" android:showAsAction="withText|always"/>
...
<item
android:id="#+id/menu_sort"
android:icon="#drawable/ic_menu_sort_selector"
android:title="▾"
android:titleCondensed="▾"
android:showAsAction="withText|always">
<menu>
<item
android:id="#+id/menu_sort_by_name"
android:showAsAction="never"
android:checkable="true"
android:checked="true"
android:title="#string/sort_by_name"/>
<item
android:id="#+id/menu_sort_by_priority"
android:showAsAction="never"
android:checkable="true"
android:checked="false"
android:title="#string/sort_by_priority"/>
<item
android:id="#+id/menu_sort_by_memory"
android:showAsAction="never"
android:checkable="true"
android:checked="false"
android:title="#string/sort_by_memory"/>
</menu>
</item>
</menu>
Result
The effect was exactly as described in the question: the submenu is displayed on top of the action bar. Here is the screenshot taken on Android 5.1.1:
I played with many options and code snippets - nothing helped. Finally I came to the following
Solution
First, move all the submenu into a separate menu layout, say, menu/sorting.xml, and remove it from menu_sort item of the main menu (shown above).
Second, modify or create onPrepareOptionsMenu event handler with the following code:
#Override
public boolean onPrepareOptionsMenu(Menu menu)
{
// as solution utilizes PopupMenu,
// take care about older Android versions if necessry
// if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB)
// here goes most crazy part: we use menu id
// to retrieve corresponding view, automatically created by OS;
// imho, this is a hack, and menu item should have getView() method or similar;
View menuItemView = findViewById(R.id.menu_sort);
// by the way, menuItemView could probably be null under some circumstances
// create a popup anchored to the view (menu item)
final PopupMenu popupMenu = new PopupMenu(this, menuItemView);
// API 14
// popupMenu.inflate(R.menu.sorting);
// API 11 (HONEYCOMB)
popupMenu.getMenuInflater().inflate(R.menu.sorting, popupMenu.getMenu());
// process popup clicks as appropriate
popupMenu.setOnMenuItemClickListener(new PopupMenu.OnMenuItemClickListener()
{
#Override
public boolean onMenuItemClick(MenuItem item)
{
switch(item.getItemId())
{
// ... place some code
}
return true;
}
});
// bind the popup to the item menu
menu.findItem(R.id.menu_sort).setOnMenuItemClickListener(new OnMenuItemClickListener()
{
#Override
public boolean onMenuItemClick(MenuItem item)
{
popupMenu.show();
return true;
}
});
return super.onPrepareOptionsMenu(menu);
}
Here is the result:
Now the dropdown is displayed as expected from very beginning.
#Stan's solution doesn't work for me, so here's my way to implement sub-menu on top of ActionBar (but below the main-menu of course):
I've created 2 xml files: menu_main.xml and menu_more.xml located in res/menu directory
The first one 'menu_main.xml' contain the menu:
<menu
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto">
<!-- our addMenu doesn't have sub-items-->
<item
android:id="#+id/action_add"
android:icon="#drawable/ic_note_add_white_24dp"
android:title="#string/action_add"
app:showAsAction="ifRoom"/>
<!-- our moreMenu which show drop-down menu when clicked-->
<item
android:id="#+id/action_more"
android:icon="#drawable/ic_more_vert_white_24dp"
android:title="#string/action_more" <!--in text: "more"-->
app:showAsAction="always"/>
</menu>
And the second one 'menu_more.xml' contain the drop-down menu:
<menu xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto">
<!-- This menu will be hidden by default-->
<!-- But will be visible when moreMenu with '#+id/action_more' is clicked-->
<item
android:id="#+id/action_settings"
app:showAsAction="ifRoom|withText"
android:title="#string/action_settings" <!-- In text: "Settings"-->
android:visible="true"/>
</menu>
Here is what previous menus look like:
result-after-add-2-xmls (i have not enough 10 reputation to display image)
In the activity, i've overridden this method:
public boolean onPrepareOptionsMenu(Menu menu)
In the previous method, i get reference to the main menuItem (in this case is menu with #+id/action_more located in menu_main.xml file), then set setOnMenuItemClickListener on it and finally, declare and set up a PopupMenu instance to manage and display sub-menu items:
// show popup menu when menuMore clicked
menu.findItem(R.id.action_more).setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener()
{
#Override
public boolean onMenuItemClick(MenuItem item)
{
// get reference to menuMore item
View menuMore = findViewById(item.getItemId());
// create a popup anchored to the view (menuMore)
// notes: if declare and set up PopupMenu Outside of this onMenuItemClick()
// then it'll not work!
// Because: the view you put into PopupMenu() could be null
final PopupMenu popupMenu = new PopupMenu(getApplicationContext(), menuMore);
// inflate 'menu_more.xml' layout file
// which contain all sub-items of menu
popupMenu.getMenuInflater().inflate(R.menu.menu_more, popupMenu.getMenu());
// process popup clicks on sub-items
popupMenu.setOnMenuItemClickListener(new PopupMenu.OnMenuItemClickListener()
{
#Override
public boolean onMenuItemClick(MenuItem item)
{
switch(item.getItemId()){
case R.id.action_settings:
Toast.makeText(getApplicationContext(), "showing SettingsActivity..",
Toast.LENGTH_SHORT).show();
break;
// more items go here
}
return true;
}
});
popupMenu.show();
return true;
}
});
return super.onPrepareOptionsMenu(menu);
And here is final result:
final-look-drop-down-menu
I'm trying to implement onClickListener for the item which is a submenu of the ActionBar. Whatever I'm trying to do the result is the same - "Unfortunatelly, application has stopped." However there are no errors during compilation. All seems to be ok, but it is't. What goes wrong here? Thanks for help.
This is my code:
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.main, menu);
View view = (View) menu.findItem(R.id.delete).getActionView();
view.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
// Execute when actionbar's item is touched
}
});
return true;
}
And here is the main.xml file where ActionBar and its item is created
<menu xmlns:android="http://schemas.android.com/apk/res/android" >
<item
android:id="#+id/action_settings"
android:orderInCategory="100"
android:showAsAction="always"
android:title="#string/action_settings">
<menu>
<item
android:id="#+id/delete"
android:title="#string/delete"
android:showAsAction="always"
android:orderInCategory="200"/>
</menu>
</item>
</menu>
getActionView() returns a valid object (not null) only you have a custom action view (with setActionView)
I have an action bar that puts everything in a menu in the top right, which the user clicks and the menu options open up.
I inflate the action bar menu with this on each activity I use it:
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main2, menu);
return true;
}
And my xml for main2.xml is:
<menu xmlns:android="http://schemas.android.com/apk/res/android" >
<item
android:id="#+id/action_searchHome"
android:orderInCategory="100"
android:showAsAction="never"
android:title="Seach"/>
</menu>
My question is do I put an onclick in the item in the xml and if so where do I put the onclick method it calls? Do I need to put it in every activity I launch this action bar in?
If you add an onClick attribute on your menu item like this:
<menu xmlns:android="http://schemas.android.com/apk/res/android" >
<item
android:id="#+id/action_searchHome"
android:orderInCategory="100"
android:showAsAction="never"
android:onClick="doThis"
android:title="Seach"/>
</menu>
Then in your activity:
public void doThis(MenuItem item){
Toast.makeText(this, "Hello World", Toast.LENGTH_LONG).show();
}
Note:
ActionBarSherlock is deprecated. Unless you are developing an app for Android 4.0 or older, please don't use it. But if you are using the library, you will have to import
import com.actionbarsherlock.view.MenuItem;
and not
import com.android.view.MenuItem;
In addition, you could do something like this: ActionBar Sherlock Menu Item OnClick
which #adneal mentions.
In my opinion
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
add_btn.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
onCreateDialog(getTaskId());
}
});
}
<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=".MainActivity">
<item android:id="#+id/action_settings" android:title="#string/action_settings"
android:orderInCategory="100" app:showAsAction="never" />
<item android:id="#+id/add_text_id" android:title="Add"
android:icon="#drawable/ic_add_btn"
android:orderInCategory="100" app:showAsAction="ifRoom" />