CODEWITHSUNDEEP
androidandroid-actionbar
Glory to Russia
Glory to Russia

Reputation: 18712

How to change the text of a TextView in an action bar?

In my Android application I have a TextView declared in the following way:

<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android" >

    [...]

    <item
        android:id="@+id/intro_button"
        android:showAsAction="ifRoom"
        android:title="@string/intro_button"/>
    <item
        android:id="@+id/help_button"
        android:showAsAction="always|withText"
        android:title="@string/help_button"/>

    [...]

    <item
        android:id="@+id/user_id_label"
        android:actionViewClass="android.widget.TextView"
        android:showAsAction="ifRoom"
        android:title="@string/session_info_label"/>
</menu>

At the start of an application, activity 1 is launched (it doesn't use the action bar). When it is completed, it starts activity 2, in which the action bar is displayed.

At the start of the activity 2 I need to set the text of the view @+id/user_id_label to a certain value.

I tried to do it in Activity2.onCreate and in Activity2.onCreateOptionsMenu, but in both these methods findViewById(R.id.user_id_label) returns null.

How (using which method) can I retrieve the reference to @+id/user_id_label text view?

Update 1 (28.04.2013 20:25):

I tried this:

@Override
public boolean onCreateOptionsMenu(final Menu aMenu) {
    final MenuInflater inflater = getMenuInflater();
            inflater.inflate(R.menu.actions, aMenu);

    this.menu = aMenu;

    return true;
}

@Override
public boolean onPrepareOptionsMenu(final Menu aMenu) {
    final MenuItem menuItem = this.menu.findItem(R.id.user_id_label);                               
    menuItem.setTitle(getString(R.string.user_id_text,
            getIntent().getIntExtra(ConnectToServerActivity.USER_ID, -1)));
    return super.onPrepareOptionsMenu(aMenu);
}

But the label is still not shown.

Update 2 (28.04.2013 21:05):

This one works (in method onPrepareOptionsMenu):

final TextView textView = (TextView) menuItem.getActionView();

textView.setText(...);

Upvotes: 3

Views: 8484

Answers (1)

Ahmad
Ahmad

Reputation: 72553

Save a reference to your OptionsMenu in a field variable: 

Menu mMenu;

 @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        super.onCreateOptionsMenu(menu);

        [...]

        this.mMenu = menu;
        return true;
    }

Then you can do something like this:

MenuItem myMenuItem = mMenu.findItem(R.id.user_id_label);
myMenuItem.setTitle("New title!");

Upvotes: 2

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