CODEWITHSUNDEEP
androidserviceandroid-activity
DuckJin Jeon
DuckJin Jeon

Reputation: 211

How to get window from a Service?

I made a View without an Activity by using the WindowManager.

I want to change the state of the view like below:

getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);

getWindow().setFlags(WindowManager.LayoutParams.FLAG_FORCE_NOT_FULLSCREEN, WindowManager.LayoutParams.FLAG_FORCE_NOT_FULLSCREEN);

but I cannot use getWindow() in a Service.

Is there a way to do this?

Upvotes: 21

Views: 25956

Answers (3)

theWook
theWook

Reputation: 843

You can't get a window in a Service. But you can use WindowManager to add a view(root) as you did already.

And You can also update view through updateViewLayout, you can change your window's status(window type, flag, x, y, w, h, gravity, etc...) like below codes.

private WindowManager mWindowManager;
private WindowManager.LayoutParams mLayoutParams;
..........

//let's assume that an event occurred
if(mConfiguration.orientation==Configuration.ORIENTATION_LANDSCAPE){
    mLayoutParams.screenOrientation=Configuration.ORIENTATION_PORTRAIT;
}
mLayoutParams.softInputMode=WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_HIDDEN;

mLayoutParams.gravity = Gravity.TOP|Gravity.CENTER; 
int flag=0
            |WindowManager.LayoutParams.FLAG_FORCE_NOT_FULLSCREEN
            |WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED
            |WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM
            ; 
mLayoutParams.flags=flag;

mWindowManager.updateViewLayout(mRootView, mLayoutParams);

Upvotes: 7

Ted Hopp
Ted Hopp

Reputation: 234837

What you are trying to do, I gather, is have the service signal that a change should be made in the appearance of an activity. The way to do this is for the service to broadcast an intent using Context.sendBroadcast(Intent) and for your activity to respond in it's onReceive method. The accepted answer in this thread has more details about how to set this up.

Upvotes: 0

user370305
user370305

Reputation: 109247

As per Service doesn't have UI, You have to start activity from it to getWindow() attribute..

Either make a Transparent activity or just start activity, getWindow() and immediately finish it.. I think you have to make a transparent activity. (This is my personal opinion)

Upvotes: 1

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