Android沉浸式状态栏设计的实例代码

/**
   * 设置状态栏颜色
   *
   * @param activity
   */
  public static void setStatusColor(Activity activity, int color) {
    if (Build.VERSION.SDK_INT > Build.VERSION_CODES.LOLLIPOP) {
      //直接调用系统提供的方法 setStatusBarColor
      activity.getWindow().setStatusBarColor(color);
    } else if (Build.VERSION.SDK_INT > Build.VERSION_CODES.KITKAT) {
      // 4.4 - 5.0 之间 采用一个技巧，首先把他弄成全屏，在状态栏的部分加一个布局
      activity.getWindow().addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);
      View view = new View(activity);
      ViewGroup.LayoutParams params = new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, getStatusbarHeight(activity));
      view.setLayoutParams(params);
      view.setBackgroundColor(color);
      ViewGroup viewGroup = (ViewGroup) activity.getWindow().getDecorView();
      viewGroup.addView(view);
      // 获取activity中setContentView布局的根布局
      ViewGroup contentView = (ViewGroup) activity.findViewById(android.R.id.content);
      View activityView = contentView.getChildAt(0);
      activityView.setFitsSystemWindows(true);
    }
  }

  private static int getStatusbarHeight(Activity activity) {
    Resources resources = activity.getResources();
    int statusHeightId = resources.getIdentifier("status_bar_height", "dimen", "android");
    return resources.getDimensionPixelOffset(statusHeightId);
  }

  public static void setActivityTranslucent(Activity activity) {
    if (Build.VERSION.SDK_INT > Build.VERSION_CODES.LOLLIPOP) {
      activity.getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN);
      activity.getWindow().setStatusBarColor(Color.TRANSPARENT);
    } else if (Build.VERSION.SDK_INT > Build.VERSION_CODES.KITKAT) {
      activity.getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
    }
  }