make status bar color white in whole application in android code example

Example 1: change status bar text color android programmatically

WindowInsetsControllerCompat(<window>, <view>).isAppearanceLightStatusBars = Boolean
Window window = Activity.getWindow();
View view = window.getDecorView();

// You need androidx.core for this

Example 2: statusbar text color android

getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR);//  set status text dark
getWindow().setStatusBarColor(ContextCompat.getColor(BookReaderActivity.this,R.color.white));// set status background white