Dialog全屏,去掉状态栏的方式

 @Override
 protected void onStart() {
  super.onStart();
  int uiOptiOns= View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
    | View.SYSTEM_UI_FLAG_LAYOUT_STABLE
    | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
    | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
    | View.SYSTEM_UI_FLAG_IMMERSIVE
    | View.SYSTEM_UI_FLAG_FULLSCREEN;
  this.getWindow().getDecorView().setSystemUiVisibility(uiOptions);
 }

WindowManager.LayoutParams attributes = getWindow().getAttributes();
  attributes.width = width;
  attributes.height = height;
  getWindow().setAttributes(attributes);

final WindowManager.LayoutParams attrs = getWindow().getAttributes();
   attrs.flags &= (~WindowManager.LayoutParams.FLAG_FULLSCREEN);
   getWindow().setAttributes(attrs);
   getWindow().clearFlags(WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS);

 if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
  setTranslucentStatus(true);
  SystemBarTintManager tintManager = new SystemBarTintManager(this);
  tintManager.setStatusBarTintEnabled(true);
  tintManager.setStatusBarTintResource(R.color.color_top_bg);// 通知栏所需颜色
  }

    @TargetApi(19)
 private void setTranslucentStatus(boolean on) {
 Window win = getWindow();
 WindowManager.LayoutParams winParams = win.getAttributes();
 final int bits = WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS;
 // WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION
 if (on) {
  winParams.flags |= bits;
 } else {
  winParams.flags &= ~bits;
 }
 win.setAttributes(winParams);
 }

 Window window = getWindow(); 
 window.addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
 ViewGroup decorView = (ViewGroup) window.getDecorView();
 view = new View(this);
 view.setLayoutParams(new ViewGroup.LayoutParams(
  ViewGroup.LayoutParams.MATCH_PARENT, getStatusBarHeight(this)));
 view.setBackgroundColor(getResources().getColor(R.color.color_top_bg));
 decorView.addView(view);