StatusBarUtils.java

package com.kickstarter.libs.utils;

import android.annotation.TargetApi;
import android.support.annotation.ColorInt;
import android.support.annotation.NonNull;
import android.view.View;
import android.view.Window;
import android.view.WindowManager;

import com.kickstarter.libs.ApiCapabilities;
import com.kickstarter.libs.BaseActivity;

public final class StatusBarUtils {
  private StatusBarUtils() {}

  @SuppressWarnings("InlinedApi")
  @TargetApi(21)
  public static void apply(final @NonNull BaseActivity activity, final @ColorInt int color) {
    if (!ApiCapabilities.canSetStatusBarColor()) {
      return;
    }

    final Window window = activity.getWindow();
    window.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
    window.setStatusBarColor(color);
  }

  public static void apply(final @NonNull BaseActivity activity, final @ColorInt int color,
    final boolean overlayShouldBeLight) {
    apply(activity, color);
    setIconOverlay(activity, overlayShouldBeLight);
  }

  public static void setDarkStatusBarIcons(final @NonNull BaseActivity activity) {
    setIconOverlay(activity, true);
  }

  public static void setLightStatusBarIcons(final @NonNull BaseActivity activity) {
    setIconOverlay(activity, false);
  }

  @SuppressWarnings("InlinedApi")
  private static void setIconOverlay(final @NonNull BaseActivity activity, final boolean light) {
    if (!ApiCapabilities.canSetDarkStatusBarIcons()) {
      return;
    }

    final int uiFlag = light ?
      View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR :
      View.SYSTEM_UI_FLAG_VISIBLE;
    final Window window = activity.getWindow();
    window.getDecorView().setSystemUiVisibility(uiFlag);
  }
}