CODEWITHSUNDEEP
androidthemes
d_r
d_r

Reputation: 430

Android theme name from theme ID

I need to know the name of the current theme, I already have the theme's resource ID. Anybody knows how to get the current theme's name?

Thanks

Solution

public String getThemeName()
{
    PackageInfo packageInfo;
    try
    {
        packageInfo = getPackageManager().getPackageInfo(getPackageName(), PackageManager.GET_META_DATA);
        int themeResId = packageInfo.applicationInfo.theme;
        return getResources().getResourceEntryName(themeResId);
    }
    catch (NameNotFoundException e)
    {
        return null;
    }
}

Upvotes: 28

Views: 12548

Answers (3)

Jared Rummler
Jared Rummler

Reputation: 38121

Using packageInfo.applicationInfo.theme will return the theme for the entire app and not each activity. This is hacky, but should get the theme for the current activity/context:

public static String getThemeName(Context context, Resources.Theme theme) {
  try {
    int mThemeResId;
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
      Field fThemeImpl = theme.getClass().getDeclaredField("mThemeImpl");
      if (!fThemeImpl.isAccessible()) fThemeImpl.setAccessible(true);
      Object mThemeImpl = fThemeImpl.get(theme);
      Field fThemeResId = mThemeImpl.getClass().getDeclaredField("mThemeResId");
      if(!fThemeResId.isAccessible())fThemeResId.setAccessible(true);
      mThemeResId = fThemeResId.getInt(mThemeImpl);
    } else {
      Field fThemeResId = theme.getClass().getDeclaredField("mThemeResId");
      if(!fThemeResId.isAccessible())fThemeResId.setAccessible(true);
      mThemeResId = fThemeResId.getInt(theme);
    }
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
      return theme.getResources().getResourceEntryName(mThemeResId);
    }
    return context.getResources().getResourceEntryName(mThemeResId);
  } catch (Exception e) {
    // Theme returned by application#getTheme() is always Theme.DeviceDefault
    return "Theme.DeviceDefault";
  }
}

I know this is an old question, but thought I would add my findings.

Upvotes: 9

CommonsWare
CommonsWare

Reputation: 1006779

Try using getResourceEntryName() or getResourceName() on Resources (typically retrieved via getResources()), depending on what you are aiming for.

Upvotes: 19

Shankar Agarwal
Shankar Agarwal

Reputation: 34765

try the below line of code to get the resource name from resource id

getResources().getString(resource id);

Refer this LINK you may get some ideas how to do

Upvotes: -3

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