I've got an Activity which uses
getWindow().getDecorView().getWindowVisibleDisplayFrame(rectangle);
to determine the useable screen space and decide where to place images.
Returning to the Activity after I click the hardware "back" button to leave the Activity, the rectangle values are
(0,0,800,480)
However, returning to the Activity after I click the hardware "home" button to leave the Activity, the rectangle values are
(0,38,800,480)
which throws off the display and the image placement.
How can I ensure I get a consistent values when calling
getWindow().getDecorView().getWindowVisibleDisplayFrame(rectangle);
no matter how I left the app?
UPDATE: Thanks to @Reno for helping test; it seems to be dependent on Android version than the device.
Welp, if you read the comments in the source, it admits that this method is kind of broken
public void getWindowVisibleDisplayFrame(Rect outRect) {
if (mAttachInfo != null) {
try {
mAttachInfo.mSession.getDisplayFrame(mAttachInfo.mWindow, outRect);
} catch (RemoteException e) {
return;
}
// XXX This is really broken, and probably all needs to be done
// in the window manager, and we need to know more about whether
// we want the area behind or in front of the IME.
final Rect insets = mAttachInfo.mVisibleInsets;
outRect.left += insets.left;
outRect.top += insets.top;
outRect.right -= insets.right;
outRect.bottom -= insets.bottom;
return;
}
You will have to ignore the outRect.top value for versions < 2.3.3