Android: center text in actionbar with hyperloop

[m1ga]

With hyperloop you can access the default action in a Window and add a new Textfield with custom layout parameters to e.g. center it:

<Alloy>
    <Window onOpen="onOpen"/>
</Alloy>

const Color = require('android.graphics.Color');
const Activity = require('android.app.Activity');
const Gravity = require('android.view.Gravity');
const ActionBar = require('androidx.appcompat.app.ActionBar');
const AppCompatActivity = require('androidx.appcompat.app.AppCompatActivity');
const AppCompatTextView = require('androidx.appcompat.widget.AppCompatTextView');

function onOpen() {
	// get default actionbar
	const activity = new Activity($.index.activity);
	const actionbar = AppCompatActivity.cast(activity).getSupportActionBar();
	actionbar.setDisplayShowCustomEnabled(true);

	// create textfield
	var mTitleTextView = new AppCompatTextView(Ti.Android.currentActivity);
	mTitleTextView.setSingleLine();
	const layout = new ActionBar.LayoutParams(-2, -2, Gravity.CENTER);
	actionbar.setCustomView(mTitleTextView, layout);

	// hide old title and add a new text
	actionbar.setDisplayShowTitleEnabled(false);
	mTitleTextView.setText("new title");
	mTitleTextView.setTextSize(22);
	mTitleTextView.setTextColor(Color.WHITE);
}

If you use an ActionBar in your window you can use https://titaniumsdk.com/api/titanium/android/actionbar.html#customview to set a custom view. With the Hyperloop example you can access the "default" actionbar inside your window.