Alternative to "FLAG_BLUR_BEHIND" in Android?

Question

I can see that when I use the same flag as shown on the API-demos for blurring the background, I get a warning that it's deprecated:

"The field WindowManager.LayoutParams.FLAG_BLUR_BEHIND is deprecated".

I've read about it, and I've found that "Blurring is no longer supported".

Does it mean that it won't work on future versions? Why did they deprecate it? Is there an alternative? I really like this feature.

Solution 1

ok , there is probably no alternative that uses the API , unless maybe i've forgetting anything.

i can however use dimming , which is cool too, as written here:

WindowManager.LayoutParams lp = dialog.getWindow().getAttributes();  
lp.dimAmount=0.0f;  
dialog.getWindow().setAttributes(lp);  
dialog.getWindow().addFlags(WindowManager.LayoutParams.FLAG_BLUR_BEHIND);  

Solution 2

watch out that

WindowManager.LayoutParams.FLAG_BLUR_BEHIND

is deprecated.. (at least at Android 4.0 it leads to a black screen in background...)

Reference (Source): http://developer.android.com/reference/android/view/WindowManager.LayoutParams.html

int FLAG_BLUR_BEHIND This constant is deprecated. Blurring is no longer supported.

public static final int FLAG_BLUR_BEHIND

Since: API Level 1
This constant is deprecated.
Blurring is no longer supported.

Window flag: blur everything behind this window.

Constant Value: 4 (0x00000004)

what a pitty .. :( (was a nice effect ;))

Comments

[android developer]

how come ? it's a cool effect. also , how do you know (in the API website) from which version this constant is deprecated? in addition , what would happen if i use it on android 4?

[cV2]

if u use it on android 4.0 the background is not blurred, it's straight black, no effect at all, also doesnt look very well, because on all other devices it's nicely blurred ... to your other question, i edited my answer above: look there: )

[android developer]

the link you gave is the API website , which is the one i've read about . they don't say from which version of android this feature is not available ...

[android developer]

another alternative is shown here : youtube.com/… meaning getWindow().addFlags(WindowManager.LayoutParams.FLAG_DIM_BEH‌​IND) or use getWindow().setBackground(new ColorDrawable(0x7f000000)

[cV2]

sry no idea exactly, but first time i realized it was with android 4.0

[android developer]

you know , it's weird that the API website doesn't tell anything about deprecated things . they should add a description of why it's deprecated , alternatives , and from which version it's deprecated.

[cV2]

hehe ;) yeah definitly, would be much more better :) interesting :) easier :) - each and every thing u mentioned :)

[shkschneider]

setBackgroundDrawable() not setBackground() at least for me

[Someone Somewhere]

indeed, the line of code in the Google video is wrong. It should say getWindow().setBackgroundDrawable(new ColorDrawable(0x7000000));

[Abandoned Cart]

You can save yourself a few lines with just dialog.getWindow().setDimAmount(0.0f);

[Léon Pelletier]

Funnier is the fact that iOS 7 currently integrates it as a native functionality.

[cV2]

:( ;=) .... there are several algorithms to create a blurred screenshot and just show it (but much effort and high performance needed :()

[Gem]

FLAG_BLUR_BEHIND flag is deprecated in api level 14

[android developer]

@Gem Does it mean it doesn't work? I think it still works.