setTheme function not working on resume
android, android-theme
Solution
The documentation for `ContextThemeWrapper.setTheme(int)` says:
Set the base theme for this context. Note that this should be called before any views are instantiated in the `Context` (for example before calling `setContentView(View)` or `inflate(int, ViewGroup)`).
The `Theme` attributes are read in the `View`s constructors, so after changing the theme you'll want to recreate the UI. You can call `finish()` and then `startActivity(getIntent())` in your Activity to restart it, or have to code a way to rebuild each and every View object.
Problem
I am trying to use setTheme function which basically set theme based on some DB value but the problem is once I have updated DB with theme to be set,I need to finish() the activity for theme settings to be implemented. code being - ``` @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); settingsDBAdapter = new SettingsDBAdapter(this); settingsDBAdapter.open(); setSettingsTheme(); <<------THIS LINE WILL SET THEME setContentView(R.layout.layout_task_manager); quickAddButton = (Button) findViewById(R.id.QuickAddButtonId); quickAddTaskText = (EditText) findViewById(R.id.QuickAddEditTextId); mDBHelper = new TasksDBAdapter(this); mDBHelper.open(); fillData(); //code to create long press on any list item and calls onCreateContextMenu method registerForContextMenu(getListView()); registerButtonListenersAndSetDefaultText(); } public void setSettingsTheme(){ String currentTheme = settingsDBAdapter.fetchThemeSettings("theme"); Log.i(TAG,"settingsDBAdapter + currentTheme-->" + settingsDBAdapter + currentTheme); //setTheme(R.style.HoloTheme); if(currentTheme.trim().equalsIgnoreCase("holo")){ Log.i(TAG, "in holo<<<<<<<<"); setTheme(R.style.HoloTheme); }else if(currentTheme.trim().equalsIgnoreCase("hololight")){ Log.i(TAG, "in hololight<<<<<<<"); setTheme(R.style.HoloLightTheme); }else{ Log.i(TAG, "iin else<<<<<<<"); setTheme(R.style.HoloTheme); } } ``` I have also tried calling setSettingsTheme() function after overriding onResume() function still of no use.`Log.i` present in setSettingsTheme() function gives proper value always. Can anyone please help me in my understanding. Thanks in advance,Kaushik