Custom dialog on Android: How can I center its title?

Question

I\'m developing an Android application.

How can I center the title for a custom dialog that I\'m using?

Answer 1

For your custom DialogFragment you can do this:

@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
    final Dialog dialog = super.onCreateDialog(savedInstanceState);
    final TextView textView = (TextView) dialog.findViewById(android.R.id.title);
    if(textView != null) {
        textView.setTextAlignment(View.TEXT_ALIGNMENT_CENTER);
    }
    return dialog;
}

Answer 2

You've got some starting tips here for modifying the title of a dialog: Android - change custom title view at run time Don't know if it can be centered(haven't tried), but if it's a custom View I guess it's very possible.

Answer 3

Another way that this can be done programatically is using the setCustomTitle():

// Creating the AlertDialog with a custom xml layout (you can still use the default Android version)
AlertDialog.Builder builder = new AlertDialog.Builder(this);
LayoutInflater inflater = (LayoutInflater)this.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View view = inflater.inflate(R.layout.viewname, null);
builder.setView(view);

TextView title = new TextView(this);
// You Can Customise your Title here 
title.setText("Custom Centered Title");
title.setBackgroundColor(Color.DKGRAY);
title.setPadding(10, 10, 10, 10);
title.setGravity(Gravity.CENTER);
title.setTextColor(Color.WHITE);
title.setTextSize(20);

builder.setCustomTitle(title);

Answer 4

Similar to @LandL Partners solution, but in Kotlin:

val builder = AlertDialog.Builder(this)
val inflater = this.getSystemService(Context.LAYOUT_INFLATER_SERVICE) as LayoutInflater

val view = inflater.inflate(R.layout.viewname, null)
builder.setView(view)
val title = TextView(this)
title.setText("Custom Centered Title")
title.setBackgroundColor(Color.DKGRAY)
title.setPadding(10, 10, 10, 10)
title.setGravity(Gravity.CENTER)
title.setTextColor(Color.WHITE)
title.setTextSize(20)

builder.setCustomTitle(title)

Answer 5

Just found this post while trying to figure out how to do the same thing. Here's how I did it for anyone else that finds this in the future.

Style xml is as follows:

    <?xml version="1.0" encoding="utf-8"?>
    <resources>
        <style name="PauseDialog" parent="@android:style/Theme.Dialog">
            <item name="android:windowTitleStyle">@style/PauseDialogTitle</item>
        </style>

        <style name="PauseDialogTitle" parent="@android:style/TextAppearance.DialogWindowTitle">
            <item name="android:gravity">center_horizontal</item>
        </style>
        <style name="DialogWindowTitle">
        <item name="android:maxLines">1</item>
        <item name="android:scrollHorizontally">true</item>
        <item name="android:textAppearance">@android:style/TextAppearance.DialogWindowTitle</item>
        </style>
    </resources>

And in my activities onCreateDialog method for the dialog I want styled I create the dialog like this:

Dialog pauseDialog = new Dialog(this, R.style.PauseDialog);
pauseDialog.setTitle(R.string.pause_menu_label);
pauseDialog.setContentView(R.layout.pause_menu);

Answer 6

    AlertDialog alertDialog = new AlertDialog.Builder(activity)

            .setMessage(message)
            .create();
    alertDialog.setIcon(R.mipmap.ic_launcher_round);

    @SuppressLint("RestrictedApi")
    DialogTitle titleView=new DialogTitle(activity);
    titleView.setText(title);
    titleView.setPaddingRelative(32,32,32,0);
    alertDialog.setCustomTitle(titleView);