当我使用 fullscreen activity wizard创建一个活动时,它会创建一个全屏活动,但是当我点击屏幕上的任何位置时,操作栏显示几秒钟.如何阻止这样做？

FullScreenActivity.java的完整代码

@H_301_4@/** * An example full-screen activity that shows and hides the system UI (i.e. * status bar and navigation/system bar) with user interaction. * * @see systemUIHider */ public class FullscreenActivity extends Activity { /** * Whether or not the system UI should be auto-hidden after * {@link #AUTO_HIDE_DELAY_MILLIS} milliseconds. */ private static final boolean AUTO_HIDE = true; /** * If {@link #AUTO_HIDE} is set,the number of milliseconds to wait after * user interaction before hiding the system UI. */ private static final int AUTO_HIDE_DELAY_MILLIS = 3000; /** * If set,will toggle the system UI visibility upon interaction. Otherwise,* will show the system UI visibility upon interaction. */ private static final boolean TOGGLE_ON_CLICK = true; /** * The flags to pass to {@link systemUIHider#getInstance}. */ private static final int HIDER_FLAGS = systemUIHider.FLAG_HIDE_NAVIGATION; /** * The instance of the {@link systemUIHider} for this activity. */ private systemUIHider msystemUIHider; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_fullscreen); final View controlsView = findViewById(R.id.fullscreen_content_controls); final View contentView = findViewById(R.id.fullscreen_content); // Set up an instance of systemUIHider to control the system UI for // this activity. msystemUIHider = systemUIHider.getInstance(this,contentView,HIDER_FLAGS); msystemUIHider.setup(); msystemUIHider .setOnVisibilityChangeListener(new systemUIHider.OnVisibilityChangeListener() { // Cached values. int mControlsHeight; int mShortAnimTime; @Override @TargetApi(Build.VERSION_CODES.HONEYCOMB_MR2) public void onVisibilityChange(boolean visible) { if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB_MR2) { // If the ViewPropertyAnimator API is available // (Honeycomb MR2 and later),use it to animate the // in-layout UI controls at the bottom of the // screen. if (mControlsHeight == 0) { mControlsHeight = controlsView.getHeight(); } if (mShortAnimTime == 0) { mShortAnimTime = getResources().getInteger( android.R.integer.config_shortAnimTime); } controlsView .animate() .translationY(visible ? 0 : mControlsHeight) .setDuration(mShortAnimTime); } else { // If the ViewPropertyAnimator APIs aren't // available,simply show or hide the in-layout UI // controls. controlsView.setVisibility(visible ? View.VISIBLE : View.GONE); } if (visible && AUTO_HIDE) { // Schedule a hide(). delayedHide(AUTO_HIDE_DELAY_MILLIS); } } }); // Set up the user interaction to manually show or hide the system UI. contentView.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { if (TOGGLE_ON_CLICK) { msystemUIHider.toggle(); } else { msystemUIHider.show(); } } }); // Upon interacting with UI controls,delay any scheduled hide() // operations to prevent the jarring behavior of controls going away // while interacting with the UI. findViewById(R.id.dummy_button).setOnTouchListener( mDelayHideTouchListener); } @Override protected void onPostCreate(Bundle savedInstanceState) { super.onPostCreate(savedInstanceState); // Trigger the initial hide() shortly after the activity has been // created,to briefly hint to the user that UI controls // are available. delayedHide(100); } /** * Touch listener to use for in-layout UI controls to delay hiding the * system UI. This is to prevent the jarring behavior of controls going away * while interacting with activity UI. */ View.OnTouchListener mDelayHideTouchListener = new View.OnTouchListener() { @Override public boolean onTouch(View view,MotionEvent motionEvent) { if (AUTO_HIDE) { delayedHide(AUTO_HIDE_DELAY_MILLIS); } return false; } }; Handler mHideHandler = new Handler(); Runnable mHideRunnable = new Runnable() { @Override public void run() { msystemUIHider.hide(); } }; /** * Schedules a call to hide() in [delay] milliseconds,canceling any * prevIoUsly scheduled calls. */ private void delayedHide(int delayMillis) { mHideHandler.removeCallbacks(mHideRunnable); mHideHandler.postDelayed(mHideRunnable,delayMillis); } }