So I have an Activity
(say TestActivity
) which needs to act as a normal unthemed Activity
as well as a Theme.Dialog
at other place. I am trying to reuse same TestActivity
for both the tasks.
All I am looking for setting the theme dynamically.
The code is simple:
Here is my activity's onCreate
that works with a black background
public void onCreate(Bundle icicle) {
if (Utility.isDialog == true)
setTheme(android.R.style.Theme_Dialog);
super.onCreate(icicle);
requestWindowFeature(Window.FEATURE_NO_TITLE);
.....
and here is the Manifest Entry
<activity android:name=".TestActivity"/>
And in the meantime I found a post that says it can't be done here is the post http://code.google.com/p/android/issues/detail?id=4394 .But there is a strong feeling that it can be done.
All suggestions are welcome.
Would like to give a work around for this problem.
Problem : How to use the same activity as both dialog and full screen based.
Solution :
@android:style/Theme.Dialog
.Java
file, check for an intent
extra that defines dialog
mode. Theme
to android.R.style.Theme
. This is the default theme
which is applied if you do not define any theme.Code :
boolean fDialogMode = getIntent().hasExtra("dialog_mode");
if( ! fDialogMode ) {
super.setTheme(android.R.style.Theme);
}
Alternate Solution:
A more complex solution is to use AlertDialog
as below:
ListAdapter
class extended from ArrayAdapter
. return 1
in getCount
function
@Override
public int getCount() { return 1; }
In the getView
function, inflate
the layout
of the activity
you need and do any customization before returning the view
.
@Override
public View getView( int position, View view, ViewGroup group ) {
View v = view;
if( v == null ) {
v = getSystemService(Context.LAYOUT_INFLATER_SERVICE).inflate( <layout res id>, null );
}
... Do any customization here ....
return v;
}
This is definitely a second choice option by if you are not doing too much processing in the activity
class
this could be an option.
Only reason to consider this solution could be that the logic to show it in a dialog
is isolated to the places where it is used as a dialog.
Both the options worked for me but for obvious reasons I am taking the first option. :-)
you can use setTheme(..)
before calling setContentView(...)
and super.oncreate()
and it should work fine
Like several others, calls to setTheme in onCreate (before or after my call to super.onCreate) did not work. However, by overriding setTheme, I was able to specify a theme other than that stated in Manifest.xml. Specifically, the following worked without issue:
@Override
public void setTheme(int resid) {
boolean changeTheme = true;
super.setTheme(changeTheme ? android.R.style.Theme_Dialog : resid);
}
I found the above in the discussion at: https://code.google.com/p/android/issues/detail?id=4394
Call Activity.setTheme()
in onCreate()
before you call setContentView()
.
use setTheme
before calling super.onCreate(savedInstance)
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