如何通过样式将自定义字体样式/系列应用于整个应用程序中的警报对话框

Question

I want to change the font face of alert dialog in entire app. How to achieve it through XML(styles). Please help me with some solution .Thank You

Answer 1

You need to add Calligraphy in build.gradle , Please refer Calligraphy for more detail.

dependencies {
    compile 'uk.co.chrisjenx:calligraphy:2.3.0'
}

Use below code in your Application file:

CalligraphyConfig.initDefault(CalligraphyConfig.Builder()
            .setDefaultFontPath("fonts/roboto_bold.ttf")
            .setFontAttrId(R.attr.fontPath)
            .build()

Create single instance of dialog using below code or where ever you are creating new dialog.

progressDialog = ProgressDialog(ContextThemeWrapper(context, R.style.AlertProgressDialogCustom))

Put below style in style.xml

<style name="DialogTextButton" parent="@android:style/TextAppearance.Holo.Medium">
    <item name="fontPath">fonts/open_sans.ttf</item>
    <item name="android:textColor">@color/black</item>
</style>

<style name="AlertProgressDialogCustom" parent="@android:style/Theme.Material.Light.Dialog">
    <item name="android:textAppearanceMedium">@style/DialogTextButton</item>
    <item name="android:subtitleTextAppearance">@style/DialogTextButton</item>
    <item name="android:titleTextAppearance">@style/DialogTextButton</item>
    <item name="android:textColor">@color/black</item>
    <item name="android:textColorPrimary">@color/black</item>
    <item name="android:colorAccent">@color/btn_picker_color</item>
    <item name="android:progressTint">@color/btn_picker_color</item>
    <item name="android:textAppearance">@style/DialogTextButton</item>
</style>

Let me know if you are still facing issue.

Answer 2

Follow the below method,

 public void createDialog()
    {
            Dialog dialog = new Dialog(context);            
            dialog.setContentView(R.layout.your_dialog);

            final FontChangeCrawler fontChanger = new FontChangeCrawler(context.getAssets(), Constant.arialRoundedFont);
            fontChanger.replaceFonts((ViewGroup) dialog.findViewById(android.R.id.content));

            dialog.setCancelable(false);
            dialog.show();
    }

->apply this method for all your dialogs by creating this method in your Util class and use it globally. this will work for you.