Transparent Statusbar When Collapsed

I have three working status bars. But when the CollapsingToolbar is collapsed, a status bar remains transparent. I want the status bar to have the PrimaryDark color if collapsed. H

Solution 1:

try this

AppBarLayout appBarLayout = (AppBarLayout) findViewById(R.id.app_bar_layout_edit_profile);
        appBarLayout.addOnOffsetChangedListener(new AppBarLayout.OnOffsetChangedListener() {
            boolean isShow = false;
            int scrollRange = -1;

            @Override
            public void onOffsetChanged(AppBarLayout appBarLayout, int verticalOffset) {
                if (scrollRange == -1) {
                    scrollRange = appBarLayout.getTotalScrollRange();
                }
                if (scrollRange + verticalOffset == 0) {       
                      Window window = activity.getWindow();
                      window.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);

                      window.clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
                      window.setStatusBarColor(activity.getResources().getColor(R.color.primary_color));


                    isShow = true;
                } else if (isShow) {
                    collapsingToolbarLayout.setTitle(" ");
                    isShow = false;
                    Window w =PerfilEmpresaActivity.this.getWindow(); 
                    w.setFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATU‌​S, WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
                }
            }
        });