in core-android/src/main/java/com/uber/sdk/android/core/auth/LoginActivity.java [449:468]
void addProgressIndicator() {
progressBarLayoutContainer = new LinearLayout(this);
progressBarLayoutContainer.setGravity(Gravity.CENTER);
progressBarLayoutContainer.setLayoutParams(
new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.MATCH_PARENT
)
);
ProgressBar progressBar = new ProgressBar(this);
progressBar.setLayoutParams(
new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.WRAP_CONTENT,
(int) getResources().getDimension(R.dimen.ub__progress_bar_height)
)
);
ViewGroup rootLayout = findViewById(android.R.id.content);
progressBarLayoutContainer.addView(progressBar);
rootLayout.addView(progressBarLayoutContainer);
}