Android实现沉浸式状态栏功能

android:fitsSystemWindows="true"

private void initBar() {
 getWindow().requestFeature(Window.FEATURE_NO_TITLE); //取消状态栏的标题
  if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {//判断SDK的版本是否>=21
   Window window = getWindow();
   window.clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS | WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION); //允许页面可以拉伸到顶部状态栏并且定义顶部状态栏透名
   window.getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION |  //设置全屏显示
     View.SYSTEM_UI_FLAG_LAYOUT_STABLE);
   window.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
   window.setStatusBarColor(Color.TRANSPARENT); //设置状态栏为透明
   window.setNavigationBarColor(Color.TRANSPARENT); //设置虚拟键为透明
  }
  ActionBar actiOnBar= getSupportActionBar();
  actionBar.hide();   //将actionBar隐藏
 }