Android的:能够自动隐藏标题/状态栏?(Android: Ability to Auto-Hi

2019-10-28 10:21发布

我有一个全屏绘图应用程序,禁止使用Android Theme.NoTitleBar.Fullscreen主题的标题和状态栏。 一个我越来越将有设置为自动隐藏这些UI元素的能力的要求,使得靠近他们将成为用户触摸时,他们显示。 我能想象这种方式使用模拟标题栏自定义活动,但将通知栏仅仅是不可行的完成。

所以,只是不知道是否有什么办法可以自动隐藏OS标准的标题和状态栏。 我猜想这是NO,因为这些元素的外观被捆绑到活动中的onCreate(或从的onCreate XML膨胀),所以一旦激活,它不可能改变他们的行为。

Answer 1:

所以,只是不知道是否有什么办法可以自动隐藏OS标准的标题和状态栏。

没有,我都看见了。

此外,你的用户请求不能被一般做 - 如果有什么有一个按钮上“不远的地方,他们将是”?



Answer 2:

采用了Android 3.1,可以通过设置用户界面状态栏的可见性

View.setSystemUiVisibility(View.STATUS_BAR_HIDDEN);

上触摸在状态栏上会出现吧。

您可以侦听此通过

View.setOnSystemUiVisibilityChangeListener 

方法,然后过一段时间后再次隐藏了吧



Answer 3:

我认为,解决问题的方法是正确的虚拟全屏项目的Android Studio有。 看看这个:

    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);
        }
}


文章来源: Android: Ability to Auto-Hide the Title/Status Bars?