I want to add action bar button to my FramgentActivity. I tried to follow the action bar article here:
https://developer.android.com/training/basics/actionbar/setting-up.html
But my activity inherits FragmentActivity and I cannot change that to ActionBarActivity. What should I do?
EDIT:
Starting from android API 11 action bar is built-in feature in Activity class so when I inherited FragmentActivity I had it. All I had to do is to override these two functions:
#Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.main, menu);
return super.onCreateOptionsMenu(menu);
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle presses on the action bar items
switch (item.getItemId()) {
case R.id.action_settings:
return true;
default:
return super.onOptionsItemSelected(item);
}
}
Related
So, that´s what I wanna know. How can I set the visibility of the menu programatically in Android?? This is how I have my menu:
public boolean onCreateOptionsMenu(Menu menu){
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.menu, menu);
return true;
}
public boolean onOptionsItemSelected (MenuItem item){
switch (item.getItemId()){
case R.id.menuregistrar:
break;
case R.id.menusalir:
break;
}
return true;
}
But this code is not on the onCreate, so I don´t know how to set one item visible or invisible programmatically (in my case, I want the "menuregistrar" to be invisible once I have registered my application and forever.
Put this method in your Activity
public boolean onPrepareOptionsMenu(Menu menu)
{
MenuItem register = menu.findItem(R.id.menuregistrar);
if(userRegistered)
{
register.setVisible(false);
}
else
{
register.setVisible(true);
}
return true;
}
in shorter version you could write:
MenuItem register = menu.findItem(R.id.menuregistrar);
register.setVisible(!userRegistered); //userRegistered is boolean, pointing if the user has registered or not.
return true;
I would simplify Adil's solution even further with the following:
public boolean onPrepareOptionsMenu(Menu menu)
{
MenuItem registrar = menu.findItem(R.id.menuregistrar);
registrar.setVisible(!isRegistered);
return true;
}
Simply do one thing get the id of the item of menu from this line:
Menu menu =navigationView.getMenu();
MenuItem nav_dashboard = menu.findItem(R.id.nav_dashboard);
and than make it visible it accourding to you by this line:
nav_dashboard.setVisible(true/false);
Menu Object has a property to set the visibility of a menu's item using setVisible(boolean)//
Example
private Menu menu_change_language;
...
...
#Override
public boolean onCreateOptionsMenu(Menu menu) {
...
...
menu_change_language = menu;
...
...
return super.onCreateOptionsMenu(menu);
}
use code below for hiding Menu Item:
if(menu_change_language != null){
menu_change_language.findItem(R.id.menu_change_language)
.setVisible(false);
}
Use public boolean onPrepareOptionsMenu (Menu menu) it is called everytime you press the menu button and do your stuff there. or use your oncreateoptionsmenu() in different activities to inflate different menus - this one is called only once.
Cheers
If you want to change the visibility inside the onOptionsItemSelected whenever you click the menu
#Override
public boolean onOptionsItemSelected(MenuItem item) {
item.setVisible(true);
return true;
}
OR
for item in the menu that you didn't click on
private Menu globalMenuItem;
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu."menu Xml Name", menu);
globalMenuItem = menu;
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
globalMenuItem.findItem(R.id."id of the menu item").setVisible(true);
return true;
}
When controlling a MenuItem, I have been doing this:
Menu menu;
(...)
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
this.menu = menu;
return true;
}
(...)
public void handleSearch(View view) {
Button button = (Button) view;
if(menu.findItem(R.id.action_search).isVisible()) {
button.setText(R.string.button_search_show);
menu.findItem(R.id.action_search).setVisible(false);
} else {
button.setText(R.string.button_search_hide);
menu.findItem(R.id.action_search).setVisible(true);
}
}
"this" being referencing the menu created in onCreateOptionsMenu with a Menu that any method in the class can use. The handleSearch method controls MenuItems by using findItem twice. This doesn't feel very conventional or efficient (a very scientific observation, I might add). Is there a more conventional or efficient way to do this?
You can save MenuItem in a variable instead of using findItem twice.
MenuItem myMenuitem = menu.findItem(R.id.action_search);
There is a method that handles actionBar's menu itself.
Try this:
#Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getSupportMenuInflater();
inflater.inflate(R.menu.menu, menu);
return super.onCreateOptionsMenu(menu);
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case android.R.id.home:
super.onBackPressed();
return (true);
case R.id.menu_home:
Intent i = new Intent(this, HomeActivity.class);
startActivity(i);
return (true);
}
return (super.onOptionsItemSelected(item));
}
A sliding menu was implemented using google navigation drawer with actionbar class. My problem is onCreateOptionsMenu is being shown in every activities. how can i make onCreateOptionsMenu icon visible and invisible at will. Any idea please.
public boolean onCreateOptionsMenu(com.actionbarsherlock.view.Menu menu) {
com.actionbarsherlock.view.MenuInflater inflater = getSupportMenuInflater();
inflater.inflate(R.layout.menu, menu);
}
public boolean onOptionsItemSelected(MenuItem item) {
// Handle item selection
switch (item.getItemId()) {
case R.id.settings:
Intent i=new Intent(class1.this, clas2.class);
startActivity(i);
return true;
}
return false;
}
Either you create menu runtime or have different menu layouts as per your need and in onCreateOptionsMenu of your activity set that layout or runtime create those menus or if you want to show no menu icons then just do menu.clear()
Activity A
public boolean onCreateOptionsMenu(com.actionbarsherlock.view.Menu menu) {
com.actionbarsherlock.view.MenuInflater inflater = getSupportMenuInflater();
inflater.inflate(R.layout.menu_a, menu);
}
public boolean onOptionsItemSelected(MenuItem item) {
// Handle item selection
switch (item.getItemId()) {
case R.id.settings:
Intent i=new Intent(class1.this, clas2.class);
startActivity(i);
return true;
}
return false;
}
Activity B
public boolean onCreateOptionsMenu(com.actionbarsherlock.view.Menu menu) {
menu.clear();
com.actionbarsherlock.view.MenuInflater inflater = getSupportMenuInflater();
inflater.inflate(R.layout.menu_b, menu);
// OR
Drawable tmpDrawable = getResources().getDrawable(R.drawable.share_sharingicon);
// tmpDrawable.setColorFilter(getResources().getColor(R.color.colorGrayFont), PorterDuff.Mode.MULTIPLY);
menu.add("ShareMap").setIcon(tmpDrawable).setShowAsActionFlags(MenuItem.SHOW_AS_ACTION_ALWAYS);
menu.add("Directions").setShowAsActionFlags(MenuItem.SHOW_AS_ACTION_ALWAYS);
}
public boolean onOptionsItemSelected(MenuItem item) {
// Handle item selection
switch (item.getItemId()) {
case R.id.ShareMap:
Intent i=new Intent(class1.this, clas2.class);
startActivity(i);
return true;
case R.id.Directions:
Intent i=new Intent(class1.this, clas2.class);
startActivity(i);
return true;
}
return false;
}
To hide or show some icon on action bar, you need override method:
#Override
public boolean onPrepareOptionsMenu(Menu menu)
{
MenuItem your_icon = menu.findItem(R.id.action_your_icon);
//show icon
your_icon.setvisible(true);
//hide icon
your_icon.setvisible(false);
...
}
Besides you need 'supportInvalidateOptionsMenu()' to Invalidate the activity's options menu when action bar items have some change
I have one action bar activity.when i am switching from one fragment to another fragment that fragment have two menus like setting,gridview.When i click the setting it perform the action but not in gridview.In each fragment first menu item only perform action not in second fragment.Please give me solution thanks.....
#Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
super.onCreateOptionsMenu(menu, inflater);
menu.clear();
getActivity().getMenuInflater().inflate(R.menu.settingmenu, menu);
getActivity().getMenuInflater().inflate(R.menu.menugridcalendar, menu);
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.menu_setting:
Log.i(TAG,"InsdieGridmenu");
Intent intent = new Intent(getActivity(), SettingPage.class);
startActivity(intent);
break;
case R.id.gridmenuid:
Activity activity = getActivity();
if (activity instanceof ListItemClickListener) {
((ListItemClickListener)activity).OpenGridView();
}
break;
}
return true;
}
So, that´s what I wanna know. How can I set the visibility of the menu programatically in Android?? This is how I have my menu:
public boolean onCreateOptionsMenu(Menu menu){
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.menu, menu);
return true;
}
public boolean onOptionsItemSelected (MenuItem item){
switch (item.getItemId()){
case R.id.menuregistrar:
break;
case R.id.menusalir:
break;
}
return true;
}
But this code is not on the onCreate, so I don´t know how to set one item visible or invisible programmatically (in my case, I want the "menuregistrar" to be invisible once I have registered my application and forever.
Put this method in your Activity
public boolean onPrepareOptionsMenu(Menu menu)
{
MenuItem register = menu.findItem(R.id.menuregistrar);
if(userRegistered)
{
register.setVisible(false);
}
else
{
register.setVisible(true);
}
return true;
}
in shorter version you could write:
MenuItem register = menu.findItem(R.id.menuregistrar);
register.setVisible(!userRegistered); //userRegistered is boolean, pointing if the user has registered or not.
return true;
I would simplify Adil's solution even further with the following:
public boolean onPrepareOptionsMenu(Menu menu)
{
MenuItem registrar = menu.findItem(R.id.menuregistrar);
registrar.setVisible(!isRegistered);
return true;
}
Simply do one thing get the id of the item of menu from this line:
Menu menu =navigationView.getMenu();
MenuItem nav_dashboard = menu.findItem(R.id.nav_dashboard);
and than make it visible it accourding to you by this line:
nav_dashboard.setVisible(true/false);
Menu Object has a property to set the visibility of a menu's item using setVisible(boolean)//
Example
private Menu menu_change_language;
...
...
#Override
public boolean onCreateOptionsMenu(Menu menu) {
...
...
menu_change_language = menu;
...
...
return super.onCreateOptionsMenu(menu);
}
use code below for hiding Menu Item:
if(menu_change_language != null){
menu_change_language.findItem(R.id.menu_change_language)
.setVisible(false);
}
Use public boolean onPrepareOptionsMenu (Menu menu) it is called everytime you press the menu button and do your stuff there. or use your oncreateoptionsmenu() in different activities to inflate different menus - this one is called only once.
Cheers
If you want to change the visibility inside the onOptionsItemSelected whenever you click the menu
#Override
public boolean onOptionsItemSelected(MenuItem item) {
item.setVisible(true);
return true;
}
OR
for item in the menu that you didn't click on
private Menu globalMenuItem;
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu."menu Xml Name", menu);
globalMenuItem = menu;
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
globalMenuItem.findItem(R.id."id of the menu item").setVisible(true);
return true;
}