Textview not resolved inside onOptionsItemSelected(MenuItem item) method

Textview not resolved inside onOptionsItemSelected(MenuItem item) method - android

Here is MainActivity.java
public class MainActivity extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
TextView myTxt = findViewById(R.id.view);
}
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.test, menu);
return true;
}
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.toast:
myTxt.setText("what a yummy toast!");
return true;
case R.id.nutella:
return true;
case R.id.milk:
default:
return super.onOptionsItemSelected(item);// ken jét this .onOption infinite loop
}
}
}
Here is the menu XML file
<?xml version="1.0" encoding="utf-8"?>
<item android:title="#string/toast"
android:id="#+id/toast"/>
<item android:title="#string/nutella"
android:id="#+id/nutella"/>
<item android:title="#string/milk"
android:id="#+id/milk"/>
I want to handle myTxt which is a textview whenever I choose an item from the menu option the problem is that myTxt is not recognized. How Should I handle Menus correctly and what are
Here is an image for more explanation

You need to declare your TextView myTxt as global outside onCreate() method
SAMPLE CODE
public class MainActivity extends AppCompatActivity {
TextView myTxt;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
myTxt = findViewById(R.id.view);
}
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.test, menu);
return true;
}
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.toast:
myTxt.setText("what a yummy toast!");
return true;
case R.id.nutella:
return true;
case R.id.milk:
default:
return super.onOptionsItemSelected(item);// ken jét this .onOption infinite loop
}
}
}

myTxt is declared inside onCreate() so you can not access it from outside this function. Try declare it outside onCreate()
public class MainActivity extends AppCompatActivity {
private TextView myTxt;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
myTxt = findViewById(R.id.view);
}
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.test, menu);
return true;
}
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.toast:
myTxt.setText("what a yummy toast!");
return true;
case R.id.nutella:
return true;
case R.id.milk:
default:
return super.onOptionsItemSelected(item);// ken jét this .onOption infinite loop
}
}
}

Related

BaseActivity with common toolbar and menuItems activities can not catch onMenuItemClick

I've the base activity where all toolbar initializations and options menu are done, the activities extending the base can not fire onitemclick
In the base i have
public class BaseActivity extends AppCompatActivity {
private MenuItem refresh;
public Toolbar getToolbar() {
return toolbar;
}
public MenuItem getRefresh() {
return refresh;
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.menu_main, menu);
refresh = menu.findItem(R.id.action_refresh);
refresh.setActionView(R.layout.menu_item_view);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case android.R.id.home:
onBackPressed();
break;
}
return false;
}
#Override
public boolean onPrepareOptionsMenu(Menu menu) {
switch (mState) {
case Const.STATE_IDLE:
refresh.setVisible(true);
break;
case STATE_WORKING:
refresh.setVisible(false);
break;
default:
refresh.setVisible(true);
break;
}
return super.onPrepareOptionsMenu(menu);
}
}
In one of the activites I handle it like
public class CommentsActivity extends BaseToolbarActivity
{
#Override
public boolean onCreateOptionsMenu(Menu menu) {
super.onCreateOptionsMenu(menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
super.onOptionsItemSelected(item);
if(item.getItemId() == R.id.action_refresh){
setState(Const.STATE_WORKING);
showMsg(contentRoot,"oops");
return true;
}
return super.onOptionsItemSelected(item);
}
}
but the click items won't fire

After a while I came to realize that since I was setting a custom layout for my items (useful for animations) an option menu with a custom view that is either set in the xml or dynamically using
item.setActionView(R.layout.menu_lay);
Just like my problem above the menu item can never be invoked by the normal onOptionsItemSelected listener so the way to make it work is to implement onClickListener on the item's custom View so in my case the way to make it invoke is by
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getRefresh.getActionView().setOnClickListener(new OnClickListener(){
#Override
public void onClick(View v) {
//refresh some data
}
});
return true;
}

android fragment action bar menu

I have created a fragment with action bar menu, that menu was shown but not working when its clicked.
Here is My Fragment:
public class ComposeFragment extends Fragment {
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setHasOptionsMenu(true);
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_compose, container, false);
userName = (TextView) view.findViewById(R.id.user_name);
subjectSpinner = (Spinner) view.findViewById(R.id.subject_spinner);
sendButton = (Button) view.findViewById(R.id.send_btn);
messageEditText = (EditText) view.findViewById(R.id.message);
userName.setText(Ezcation.getInstance().userName);
return view;
}
#Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
inflater.inflate(R.menu.compose_menu, menu);
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
Log.e("Menu","Before Switch");
switch (item.getItemId()){
case R.id.sent:
Log.e("Menu","Sent");
if (messageEditText.getText().toString().equals("")){
messageEditText.setError("Please Enter your Message");
}else {
sendMessage(messageEditText.getText().toString());
}
return true;
default:
return super.onOptionsItemSelected(item);
}
}
#Override
public void onAttach(Context context) {
super.onAttach(context);
this.messageActivity = (MessageActivity) context;
SpannableString s = new SpannableString("Compose Message");
s.setSpan(new TypefaceSpan(messageActivity, "Miller-Text.ttf"), 0, s.length(),
Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
messageActivity.setTitle(s);
}
}
When menu was clicked even Log.e("Menu","Before Switch"); not working.
My Menu xml:
<menu xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto">
<item
android:id="#+id/sent"
android:title="Sent"
android:orderInCategory="10"
android:icon="#drawable/sent"
app:showAsAction="ifRoom" />
</menu>

For Future visiters you should use this in Activity class:
#Override
public boolean onOptionsItemSelected(MenuItem item) {
return super.onOptionsItemSelected(item);
}
To work properly hardcoding false isnt the right way

add this in your Activity.
#Override public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case android.R.id.home:
finish();
break;
}
return super.onOptionsItemSelected(item);;
}

The super call is missing inside onCreateOptionsMenu
#Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
inflater.inflate(R.menu.compose_menu, menu);
super.onCreateOptionsMenu(menu, inflater);
}

Android: Fragment's onOptionsItemSelected doesn't get called

I have an ActionBarActivity and one Fragment. The Activity has no menu inflated, while the Fragment has a menu with two buttons. Fragment menu is visible, but the buttons don't react at all when tapped. At debugging I can see that both onCreateOptionsMenu() for Fragment and Activity get called, but when tapping buttons no onOptionsItemSelected() gets called, neither from Activity nor from Fragment.
Activity
#Override
public boolean onCreateOptionsMenu(Menu menu) {
return super.onCreateOptionsMenu(menu);
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
return false;
}
Fragment
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mainActivity = (NavigationActivity)getActivity();
setHasOptionsMenu(true);
}
#Override
public View onCreateView(final LayoutInflater inflater, final ViewGroup container, final Bundle savedInstanceState){
return (ScrollView) inflater.inflate(R.layout.tutoring_detail, container, false);
}
#Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
inflater.inflate(R.menu.query_details_menu, menu);
super.onCreateOptionsMenu(menu, inflater);
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.accept_query:
respondToQuery(true);
return true;
case R.id.decline_query:
respondToQuery(false);
return true;
default:
break;
}
return false;
}
Menu to be displayed in Fragment
<menu xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
<item
android:id="#+id/accept_query"
android:orderInCategory="100"
app:showAsAction="always"
android:checkable="true"
style="?android:attr/borderlessButtonStyle"
app:actionViewClass="android.widget.ImageButton"/>
<item
android:id="#+id/decline_query"
android:orderInCategory="101"
app:showAsAction="always"
android:checkable="true"
style="?android:attr/borderlessButtonStyle"
app:actionViewClass="android.widget.ImageButton"/>
</menu>

In the Activity class,
#Override
public boolean onOptionsItemSelected(MenuItem item) {
super.onOptionsItemSelected(item);
return false;
}
In the Fragment,
#Override
public void onCreate(#Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setHasOptionsMenu(true);
}
#Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
super.onCreateOptionsMenu(menu, inflater);
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
Toast.makeText(getActivity(), "called " + item.getItemId(), Toast.LENGTH_SHORT).show();
return super.onOptionsItemSelected(item);
}

You must use super.onOptionsItemSelected(item) in the parent activity's onOptionsItemSelected(...) method.
From Activity | Android Developers:
Derived classes should call through to the base class for it to perform the default menu handling.

Try moving setHasOptionsMenu(true) inside of the onCreateView() method in your Fragment instead of onCreate().

I had a similar issue after making special layout for my action button (I made an Image Button and needed to pad it and change some other things so I had to use layout for it).
Then onOptionsItemSelected lost connection with this imageButton so I just use clickListener for it inside onCreateOptionsMenu. It might not be the best practice, maybe there is a better solution, but this is what solve my problem.
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
super.onCreateOptionsMenu(menu, inflater);
inflater.inflate(R.menu.picker_list_menu, menu);
MenuItem itemDone = menu.findItem(R.id.menu_done);
MenuItemCompat.setActionView(itemDone, R.layout.menu_layout_done);
menuDoneIB = (ImageButton) MenuItemCompat.getActionView(itemDone);
itemDone.getActionView().setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
//your code..
}
});
}

Try using oncreateview
public static class ExampleFragment extends Fragment {
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
return inflater.inflate(R.layout.example_fragment, container, false);
}
}

If you have dynamically changed menu item, for instance, a badge menu (https://stackoverflow.com/a/16648170/2914140 or https://stackoverflow.com/a/26017587/2914140), you should initialize the item in onCreateOptionsMenu and re-set setOnClickListeners after every change of the item.
In my case:
private MenuItem menuItem;
#Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
inflater.inflate(R.menu.menu_catalog, menu);
menuItem = menu.findItem(R.id.action_badge);
writeBadge(0);
super.onCreateOptionsMenu(menu, inflater);
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
int id = item.getItemId();
if (id == R.id.action_badge) {
// Your code.
return true;
}
return super.onOptionsItemSelected(item);
}
private void writeBadge(int count) {
MenuItemCompat.setActionView(menuItem, R.layout.item_badge);
RelativeLayout layout = (RelativeLayout) MenuItemCompat.getActionView(menuItem);
// A TextView with number.
TextView tv = (TextView) layout.findViewById(R.id.badge);
if (count == 0) {
tv.setVisibility(View.INVISIBLE);
} else {
tv.setVisibility(View.VISIBLE);
tv.setText(String.valueOf(count));
}
// An icon, it also must be clicked.
ImageView imageView = (ImageView) layout.findViewById(R.id.image);
View.OnClickListener onClickListener = new View.OnClickListener() {
#Override
public void onClick(View v) {
onOptionsItemSelected(menuItem);
}
};
menuItem.getActionView().setOnClickListener(onClickListener);
imageView.setOnClickListener(onClickListener);
}

I am passing the click event to fragment from the activity. This worked for me.
#Override
public boolean onOptionsItemSelected(#NonNull MenuItem item) {
return getSupportFragmentManager().getFragments().get(getSupportFragmentManager().getFragments().size() - 1)
.onOptionsItemSelected(item);
}

saving the edittext value to another activity on click of save actionbutton in android

how to save the text given to edit text, after clicking the save action button in action bar that should save to another activity.
my first activity Add.java
public class Add extends Activity {
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_add);
getActionBar().setDisplayShowHomeEnabled(false);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflate=getMenuInflater();
getMenuInflater().inflate(R.menu.activity_add_action, menu);
return super.onCreateOptionsMenu(menu);
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.save:save();
return true;
case R.id.cancel:cancelnavi();
return true;
}
return super.onOptionsItemSelected(item);
}
private void save() {
EditText titlename;
titlename=(EditText)findViewById(R.id.edittitle);
String title=titlename.getText().toString();
if (title.equalsIgnoreCase("")){
Toast.makeText(Add.this, "Script title should not be empty", Toast.LENGTH_LONG).show();
} else {
Intent i;
i=new Intent(getApplicationContext(), Scripts.class);
i.putExtra("n", titlename.getText().toString());
startActivityForResult(i, 0);
titlename.setText("");
}
}
}
It should be saved to scripts.java
public class Scripts extends Activity {
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_scripts);
getActionBar().setDisplayShowHomeEnabled(false);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflate=getMenuInflater();
getMenuInflater().inflate(R.menu.activity_main_actions, menu);
return super.onCreateOptionsMenu(menu);
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.action_edit:editscript();
break;
}
return true;
}
private void editscript() {
Intent editinIntent;
editinIntent=new Intent(Scripts.this, Edit.class);
startActivity(editinIntent);
}
}

Maybe this can help you.
public class Scripts extends Activity {
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_scripts);
getActionBar().setDisplayShowHomeEnabled(false);
//Extract the data
String yourTitle = getIntent().getStringExtra("n");
}
}

Intent error - process stop unexpectdly

I need some help in my application. I have these classes:
Ajuda.class:
public class Ajuda extends Activity {
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.ajuda);
}
}
testes.class:
public class teste extends Activity {
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
}
#Override
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.mnuAjuda:
Intent i = new Intent (this.getApplicationContext(),
Ajuda.class);
this.startActivity(i);
return true;
default: return super.onOptionsItemSelected(item);
}
}
}
On method onOptionsItemSelected in case R.id.mnuAjuda: if I got
Intent i = new Intent (this.getApplicationContext(),
Ajuda.class);
this.startActivity(i);
instead of
setContentView(R.layout.ajuda);
the application stop unexpectdly and I dont know why.

Did you put something like
<activity android:name=".Ajuda" android:label="Ajuda" />
in AndroidManifest.xml?

Develop Reference

The Android operating system is a mobile operating system that was developed by Google (GOOGL?) to be primarily used for touchscreen devices, cell phones, and tablets.

Textview not resolved inside onOptionsItemSelected(MenuItem item) method - android

Related

BaseActivity with common toolbar and menuItems activities can not catch onMenuItemClick

android fragment action bar menu

Android: Fragment's onOptionsItemSelected doesn't get called

saving the edittext value to another activity on click of save actionbutton in android

Intent error - process stop unexpectdly

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