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How to Apply theme activity in android by programmatically?

Anonymous User232207-Nov-2014

I want to know which theme is applied for an Activity in an application.

Normally we are setting the theme by using

setTheme(android.R.style.Theme_Light);

Here we are specifying style, As like  this can we able to get the specific style type exactly applied for an activity programmatically.

androidandroid android styles android activity 
Updated on 07-Nov-2014
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David Miller

David Miller

07-Nov-2014

Context class has a nice method called getThemeResId, however it's private thus you need to use reflection.

Here's an example:

@Overrideprotectedvoid onCreate(Bundle savedInstanceState){super.onCreate(savedInstanceState); setContentView(R.layout.activity_my);Log.e("TAG","Def theme: "+ R.style.AppTheme);Log.e("TAG","Light theme: "+ android.R.style.Theme_Light);Log.e("TAG","Current theme id: "+ getThemeId()); setTheme(android.R.style.Theme_Light);Log.e("TAG","Current theme id: "+ getThemeId());}int getThemeId(){try{Class<?> wrapper =Context.class;Method method = wrapper.getMethod("getThemeResId"); method.setAccessible(true);return(Integer) method.invoke(this);}catch(Exception e){ e.printStackTrace();}return0;}
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