10

当我使用全屏活动向导创建一个活动时，它会创建一个全屏活动，但是每当我单击屏幕上的任何位置时，操作栏都会显示几秒钟。我怎样才能阻止它这样做？

FullScreenActivity.java 的完整代码

/**
 * 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);
    }
}
4

8 回答 8

12

如果我理解正确，您只想隐藏操作栏？

如果是，则更改此行（将 flag_hide_navigation 更改为 0）。

private static final int HIDER_FLAGS = 0;// SystemUiHider.FLAG_HIDE_NAVIGATION;

并将其添加到 onCreate 调用中：

protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    getWindow().requestFeature(Window.FEATURE_ACTION_BAR);   //new
    getActionBar().hide();                                   //new
    getWindow().setFlags(
         WindowManager.LayoutParams.FLAG_FULLSCREEN,WindowManager.LayoutParams.FLAG_FULLSCREEN);

    setContentView(R.layout.activity_fullscreen);

之后，如果您想显示操作栏，只需从活动中的任何位置调用：

getActionBar().show();
于 2013-03-28T02:32:49.323 回答
2

这对我有用。尽管导航器没有完全移除，但它并没有给用户太多时间进行交互，而且按钮图标是小圆点。这也减少了制作全屏屏幕所需的代码量。

SystemUiHider hider = null;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    //go full screen with no title
    this.requestWindowFeature(Window.FEATURE_PROGRESS); //show progress on loadup
    this.requestWindowFeature(Window.FEATURE_NO_TITLE); //hide the title bar
    this.getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN); //go fullscreen

    setContentView(R.layout.activity_main);

    //hide the navigation controls
    final RelativeLayout mainLayout = (RelativeLayout)this.findViewById(R.id.mainLayout);
    hider = SystemUiHider.getInstance(this, mainLayout, SystemUiHider.FLAG_HIDE_NAVIGATION);
    hider.setup();
    hider.setOnVisibilityChangeListener(new SystemUiHider.OnVisibilityChangeListener() {
        @Override
        @TargetApi(Build.VERSION_CODES.HONEYCOMB_MR2)
        public void onVisibilityChange(boolean visible) {
            if (visible) {
                //will make navigator into small dots
                hider.hide(); 

                //must use delayed to force navigator to disappear completely
                final Handler mHideHandler = new Handler();
                final Runnable mHideRunnable = new Runnable() {
                    @Override
                    public void run() {
                        hider.hide();
                    }
                };
                mHideHandler.removeCallbacks(mHideRunnable);
                mHideHandler.postDelayed(mHideRunnable, 1000); //min 1 sec to work
            }
        }
    });
    hider.hide();

    //do the rest of your onCreate stuff here
}
于 2013-09-19T22:18:19.047 回答
2

我用 0 代替 3000 尝试了同样的方法

private static final int AUTO_HIDE_DELAY_MILLIS = 3000;

androidmanifest.xml 但是它变得太迟钝了......所以，你在添加中进行更改的技巧

android:theme="@android:style/Theme.NoTitleBar.Fullscreen"

申请AndroidManifest.xml不足

于 2013-06-23T07:54:50.463 回答
1

在 api19 中我们可以使用：

getWindow().getDecorView()
    .setSystemUiVisibility(View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY
                           | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION);

隐藏导航栏和状态栏

于 2014-10-11T12:16:30.457 回答
1

我深入研究了代码并在没有物理导航按钮的 Android 4.2 设备上启动了活动。默认配置尽可能全屏。它隐藏了状态栏、操作栏和导航栏。那么如果不点击屏幕上的任何位置，用户应该如何退出您的活动呢？其他任何东西都会非常限制和糟糕的可用性。我认为这就是为什么不能操纵这种行为的原因。

相反，您可以做的是更改SystemUiHider它以隐藏状态栏和操作栏，但不隐藏导航栏。相反，它将导航栏变暗为三个淡点，请参见下面的屏幕截图。

变暗的导航栏

必须有更好的方法来实现这一点，但以下工作。在构造函数的末尾注释这些行SystemUiHiderHoneycomb()：

if ((mFlags & FLAG_HIDE_NAVIGATION) != 0) {
    // If the client requested hiding navigation, add relevant flags.
    mShowFlags |= View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION;
    mHideFlags |= View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
            | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION;
    mTestFlags = View.SYSTEM_UI_FLAG_HIDE_NAVIGATION;
}

然后，活动在用户交互中保持全屏状态，您可以toggle()在特定事件中使用它。当然，您仍然需要更改我原来的答案才能禁用点击行为。

原答案：

我想你必须评论这部分：

// 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();
        }
    }
});
于 2013-03-03T14:28:50.633 回答
0

将您的活动主题更改为没有操作栏。最好是从动作栏继承 Sherlock 活动并移除动作栏

于 2013-03-22T22:43:35.017 回答
0

虽然发布答案为时已晚，但据我所知，由于我正在使用提供的全屏活动模板工作Android Studio，我认为这个问题的答案是禁用操作栏，当用户与 UI 交互，这可以通过禁用OnClickListeneron contentView ie来实现

contentView.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View view) {
        if (TOGGLE_ON_CLICK) {
            mSystemUiHider.toggle();
        } else {
            mSystemUiHider.show();
        }
    }
});

即注释掉onClick方法实现。

于 2016-01-22T09:26:53.287 回答
0

只需注释掉

if (TOGGLE_ON_CLICK) {
                    mSystemUiHider.toggle();
                } else {
                    mSystemUiHider.show();
                }

默认情况下，状态为关闭。发生切换是因为还添加了一个 onclick 监听器来切换屏幕。您可以简单地不添加它并删除代码片段。

最新代码是 // 设置用户交互以手动显示或隐藏系统 UI。

mContentView.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
           // toggle();
        }

我只是注释掉了 toggle() 和瞧

于 2016-08-13T18:00:19.047 回答