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Android13系统导航栏添加隐藏导航栏功能按钮_we may show taskbar on the default display for lar

作者：羊村懒王 | 2024-05-14 19:49:54

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we may show taskbar on the default display for large screen device. don't ne

最近有个项目，客户要求在底部导航栏中添加一个可以隐藏整个导航栏的功能按钮，效果如下图：

具体方法如下：

1. 在frameworks/base做如下修改：

  1. diff --git a/packages/SystemUI/res/layout/navigation_bar.xml b/packages/SystemUI/res/layout/navigation_bar.xml
  2. old mode 100644
  3. new mode 100755
  4. index 5f59e781ef5e..538a0119cd09
  5. --- a/packages/SystemUI/res/layout/navigation_bar.xml
  6. +++ b/packages/SystemUI/res/layout/navigation_bar.xml
  7. @@ -33,4 +33,12 @@
  8.          android:clipChildren="false"
  9.          android:clipToPadding="false" />
  10.  
  11. +    <ImageView
  12. +        android:layout_width="30dp"
  13. +        android:layout_height="30dp"
  14. +        android:id="@+id/navigation_hide_iv"
  15. +        android:src="@drawable/ic_sysbar_hide"
  16. +        android:layout_gravity="start|center_vertical"
  17. +        android:layout_marginStart="@dimen/navigation_hide_button_start_margin" />
  18. +        
  19.  </com.android.systemui.navigationbar.NavigationBarView>
  20. diff --git a/packages/SystemUI/res/values-land/dimens.xml b/packages/SystemUI/res/values-land/dimens.xml
  21. old mode 100644
  22. new mode 100755
  23. index e09f7a6f0b57..6b19713923d6
  24. --- a/packages/SystemUI/res/values-land/dimens.xml
  25. +++ b/packages/SystemUI/res/values-land/dimens.xml
  26. @@ -60,4 +60,6 @@
  27.  
  28.      <dimen name="qs_panel_padding_top">@dimen/qqs_layout_margin_top</dimen>
  29.      <dimen name="qs_panel_padding_top_combined_headers">@dimen/qs_panel_padding_top</dimen>
  30. +	
  31. +	<dimen name="navigation_hide_button_start_margin">40dp</dimen>
  32.  </resources>
  33. diff --git a/packages/SystemUI/res/values/dimens.xml b/packages/SystemUI/res/values/dimens.xml
  34. old mode 100644
  35. new mode 100755
  36. index 6f1a13de60ed..40659c8542b9
  37. --- a/packages/SystemUI/res/values/dimens.xml
  38. +++ b/packages/SystemUI/res/values/dimens.xml
  39. @@ -1567,4 +1567,6 @@
  40.      <dimen name="dream_overlay_status_bar_ambient_text_shadow_dx">0.5dp</dimen>
  41.      <dimen name="dream_overlay_status_bar_ambient_text_shadow_dy">0.5dp</dimen>
  42.      <dimen name="dream_overlay_status_bar_ambient_text_shadow_radius">2dp</dimen>
  43. +	
  44. +	<dimen name="navigation_hide_button_start_margin">24dp</dimen>
  45.  </resources>
  46. diff --git a/packages/SystemUI/src/com/android/systemui/navigationbar/NavigationBarController.java b/packages/SystemUI/src/com/android/systemui/navigationbar/NavigationBarController.java
  47. old mode 100644
  48. new mode 100755
  49. index 3789cbb1fb65..53d3fa4855aa
  50. --- a/packages/SystemUI/src/com/android/systemui/navigationbar/NavigationBarController.java
  51. +++ b/packages/SystemUI/src/com/android/systemui/navigationbar/NavigationBarController.java
  52. @@ -25,6 +25,7 @@ import static com.android.systemui.shared.recents.utilities.Utilities.isTablet;
  53.  
  54.  import android.content.ContentResolver;
  55.  import android.content.Context;
  56. +import android.content.Intent;
  57.  import android.content.pm.ActivityInfo;
  58.  import android.content.res.Configuration;
  59.  import android.hardware.display.DisplayManager;
  60. @@ -47,6 +48,7 @@ import androidx.annotation.Nullable;
  61.  import com.android.internal.annotations.VisibleForTesting;
  62.  import com.android.internal.statusbar.RegisterStatusBarResult;
  63.  import com.android.settingslib.applications.InterestingConfigChanges;
  64. +import com.android.systemui.R;
  65.  import com.android.systemui.Dumpable;
  66.  import com.android.systemui.dagger.SysUISingleton;
  67.  import com.android.systemui.dagger.qualifiers.Main;
  68. @@ -63,6 +65,7 @@ import com.android.systemui.statusbar.phone.BarTransitions.TransitionMode;
  69.  import com.android.systemui.statusbar.phone.LightBarController;
  70.  import com.android.systemui.statusbar.phone.StatusBarKeyguardViewManager;
  71.  import com.android.systemui.statusbar.policy.ConfigurationController;
  72. +import com.android.systemui.statusbar.phone.CentralSurfacesImpl;
  73.  import com.android.wm.shell.back.BackAnimation;
  74.  import com.android.wm.shell.pip.Pip;
  75.  
  76. @@ -294,6 +297,8 @@ public class NavigationBarController implements
  77.          }
  78.      }
  79.  
  80. +    private int displayId;
  81. +
  82.      /**
  83.       * Adds a navigation bar on default display or an external display if the display supports
  84.       * system decorations.
  85. @@ -306,7 +311,7 @@ public class NavigationBarController implements
  86.              return;
  87.          }
  88.  
  89. -        final int displayId = display.getDisplayId();
  90. +        displayId = display.getDisplayId();
  91.          final boolean isOnDefaultDisplay = displayId == DEFAULT_DISPLAY;
  92.  
  93.          // We may show TaskBar on the default display for large screen device. Don't need to create
  94. @@ -343,6 +348,7 @@ public class NavigationBarController implements
  95.                              result.mImeWindowVis, result.mImeBackDisposition,
  96.                              result.mShowImeSwitcher);
  97.                  }
  98. +                context.sendBroadcast(new Intent(CentralSurfacesImpl.ACTION_HIDE_NAVIGATIONBAR));
  99.              }
  100.  
  101.              @Override
  102. @@ -352,6 +358,13 @@ public class NavigationBarController implements
  103.          });
  104.      }
  105.  
  106. +    //edit by chain
  107. +    public void initHideButton() {
  108. +        NavigationBarView navigationBarView = getNavigationBarView(displayId);
  109. +        View navigationHideIv = navigationBarView.findViewById(R.id.navigation_hide_iv);
  110. +        navigationHideIv.setOnClickListener(v -> removeNavigationBar(displayId));
  111. +    }
  112. +
  113.      void removeNavigationBar(int displayId) {
  114.          NavigationBar navBar = mNavigationBars.get(displayId);
  115.          if (navBar != null) {
  116. @@ -368,6 +381,11 @@ public class NavigationBarController implements
  117.          }
  118.      }
  119.  
  120. +	public boolean canShowNavigationBar() {
  121. +        NavigationBar navBar = mNavigationBars.get(displayId);
  122. +        return navBar == null;
  123. +    }
  124. +
  125.      /** @see NavigationBar#finishBarAnimations() */
  126.      public void finishBarAnimations(int displayId) {
  127.          NavigationBar navBar = mNavigationBars.get(displayId);
  128. diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/CentralSurfacesImpl.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/CentralSurfacesImpl.java
  129. old mode 100644
  130. new mode 100755
  131. index 0b63bbfec877..f78b86556d28
  132. --- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/CentralSurfacesImpl.java
  133. +++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/CentralSurfacesImpl.java
  134. @@ -879,6 +879,8 @@ public class CentralSurfacesImpl extends CoreStartable implements
  135.          wiredChargingRippleController.registerCallbacks();
  136.      }
  137.  
  138. +	private RegisterStatusBarResult mBarRresult;
  139. +
  140.      @Override
  141.      public void start() {
  142.          mScreenLifecycle.addObserver(mScreenObserver);
  143. @@ -917,14 +919,14 @@ public class CentralSurfacesImpl extends CoreStartable implements
  144.          mKeyguardManager = (KeyguardManager) mContext.getSystemService(Context.KEYGUARD_SERVICE);
  145.          mWallpaperSupported = mWallpaperManager.isWallpaperSupported();
  146.  
  147. -        RegisterStatusBarResult result = null;
  148. +        //RegisterStatusBarResult result = null;
  149.          try {
  150. -            result = mBarService.registerStatusBar(mCommandQueue);
  151. +            mBarRresult = mBarService.registerStatusBar(mCommandQueue);
  152.          } catch (RemoteException ex) {
  153.              ex.rethrowFromSystemServer();
  154.          }
  155.  
  156. -        createAndAddWindows(result);
  157. +        createAndAddWindows(mBarRresult);
  158.  
  159.          if (mWallpaperSupported) {
  160.              // Make sure we always have the most current wallpaper info.
  161. @@ -939,30 +941,30 @@ public class CentralSurfacesImpl extends CoreStartable implements
  162.          // Set up the initial notification state. This needs to happen before CommandQueue.disable()
  163.          setUpPresenter();
  164.  
  165. -        if (containsType(result.mTransientBarTypes, ITYPE_STATUS_BAR)) {
  166. +        if (containsType(mBarRresult.mTransientBarTypes, ITYPE_STATUS_BAR)) {
  167.              showTransientUnchecked();
  168.          }
  169. -        mCommandQueueCallbacks.onSystemBarAttributesChanged(mDisplayId, result.mAppearance,
  170. -                result.mAppearanceRegions, result.mNavbarColorManagedByIme, result.mBehavior,
  171. -                result.mRequestedVisibilities, result.mPackageName, result.mLetterboxDetails);
  172. +        mCommandQueueCallbacks.onSystemBarAttributesChanged(mDisplayId, mBarRresult.mAppearance,
  173. +                mBarRresult.mAppearanceRegions, mBarRresult.mNavbarColorManagedByIme, mBarRresult.mBehavior,
  174. +                mBarRresult.mRequestedVisibilities, mBarRresult.mPackageName, mBarRresult.mLetterboxDetails);
  175.  
  176.          // StatusBarManagerService has a back up of IME token and it's restored here.
  177. -        mCommandQueueCallbacks.setImeWindowStatus(mDisplayId, result.mImeToken,
  178. -                result.mImeWindowVis, result.mImeBackDisposition, result.mShowImeSwitcher);
  179. +        mCommandQueueCallbacks.setImeWindowStatus(mDisplayId, mBarRresult.mImeToken,
  180. +                mBarRresult.mImeWindowVis, mBarRresult.mImeBackDisposition, mBarRresult.mShowImeSwitcher);
  181.  
  182.          // Set up the initial icon state
  183. -        int numIcons = result.mIcons.size();
  184. +        int numIcons = mBarRresult.mIcons.size();
  185.          for (int i = 0; i < numIcons; i++) {
  186. -            mCommandQueue.setIcon(result.mIcons.keyAt(i), result.mIcons.valueAt(i));
  187. +            mCommandQueue.setIcon(mBarRresult.mIcons.keyAt(i), mBarRresult.mIcons.valueAt(i));
  188.          }
  189.  
  190.          if (DEBUG) {
  191.              Log.d(TAG, String.format(
  192.                      "init: icons=%d disabled=0x%08x lights=0x%08x imeButton=0x%08x",
  193.                      numIcons,
  194. -                    result.mDisabledFlags1,
  195. -                    result.mAppearance,
  196. -                    result.mImeWindowVis));
  197. +                    mBarRresult.mDisabledFlags1,
  198. +                    mBarRresult.mAppearance,
  199. +                    mBarRresult.mImeWindowVis));
  200.          }
  201.  
  202.          IntentFilter internalFilter = new IntentFilter();
  203. @@ -1028,8 +1030,8 @@ public class CentralSurfacesImpl extends CoreStartable implements
  204.          mAccessibilityFloatingMenuController.init();
  205.  
  206.          // set the initial view visibility
  207. -        int disabledFlags1 = result.mDisabledFlags1;
  208. -        int disabledFlags2 = result.mDisabledFlags2;
  209. +        int disabledFlags1 = mBarRresult.mDisabledFlags1;
  210. +        int disabledFlags2 = mBarRresult.mDisabledFlags2;
  211.          mInitController.addPostInitTask(
  212.                  () -> setUpDisableFlags(disabledFlags1, disabledFlags2));
  213.  
  214. @@ -1398,11 +1400,15 @@ public class CentralSurfacesImpl extends CoreStartable implements
  215.          return mLifecycle;
  216.      }
  217.  
  218. +	public static final String ACTION_HIDE_NAVIGATIONBAR = "action_hide_navigationbar";
  219. +	public static final String ACTION_SHOW_NAVIGATIONBAR = "action_show_navigationbar";
  220.      @VisibleForTesting
  221.      protected void registerBroadcastReceiver() {
  222.          IntentFilter filter = new IntentFilter();
  223.          filter.addAction(Intent.ACTION_CLOSE_SYSTEM_DIALOGS);
  224.          filter.addAction(Intent.ACTION_SCREEN_OFF);
  225. +        filter.addAction(ACTION_HIDE_NAVIGATIONBAR);
  226. +        filter.addAction(ACTION_SHOW_NAVIGATIONBAR);
  227.          mBroadcastDispatcher.registerReceiver(mBroadcastReceiver, filter, null, UserHandle.ALL);
  228.      }
  229.  
  230. @@ -2660,6 +2666,13 @@ public class CentralSurfacesImpl extends CoreStartable implements
  231.                  }
  232.                  finishBarAnimations();
  233.                  resetUserExpandedStates();
  234. +            }else if (ACTION_HIDE_NAVIGATIONBAR.equals(action)){
  235. +                mNavigationBarController.initHideButton();
  236. +            }else if (ACTION_SHOW_NAVIGATIONBAR.equals(action)){
  237. +                //Log.d("wzh", "mBroadcastReceiver.action="+action);
  238. +                if (mNavigationBarController.canShowNavigationBar()){
  239. +                    createNavigationBar(mBarRresult);
  240. +                }
  241.              }
  242.              Trace.endSection();
  243.          }
  244. diff --git a/services/core/java/com/android/server/wm/SystemGesturesPointerEventListener.java b/services/core/java/com/android/server/wm/SystemGesturesPointerEventListener.java
  245. old mode 100644
  246. new mode 100755
  247. index 658f4efbdb2f..c095df9b0adb
  248. --- a/services/core/java/com/android/server/wm/SystemGesturesPointerEventListener.java
  249. +++ b/services/core/java/com/android/server/wm/SystemGesturesPointerEventListener.java
  250. @@ -23,12 +23,14 @@ import static android.view.DisplayCutout.BOUNDS_POSITION_TOP;
  251.  
  252.  import android.annotation.NonNull;
  253.  import android.content.Context;
  254. +import android.content.Intent;
  255.  import android.content.res.Resources;
  256.  import android.graphics.Rect;
  257.  import android.graphics.Region;
  258.  import android.hardware.display.DisplayManagerGlobal;
  259.  import android.os.Handler;
  260.  import android.os.SystemClock;
  261. +import android.util.Log;
  262.  import android.util.Slog;
  263.  import android.view.Display;
  264.  import android.view.DisplayCutout;
  265. @@ -194,12 +196,15 @@ class SystemGesturesPointerEventListener implements PointerEventListener {
  266.                  if (mSwipeFireable) {
  267.                      final int swipe = detectSwipe(event);
  268.                      mSwipeFireable = swipe == SWIPE_NONE;
  269. +                    //Log.d("wzh", "onPointerEvent().MotionEvent.ACTION_MOVE.swipe="+swipe);
  270.                      if (swipe == SWIPE_FROM_TOP) {
  271.                          if (DEBUG) Slog.d(TAG, "Firing onSwipeFromTop");
  272.                          mCallbacks.onSwipeFromTop();
  273. +                        mContext.sendBroadcast(new Intent("action_show_navigationbar"));
  274.                      } else if (swipe == SWIPE_FROM_BOTTOM) {
  275.                          if (DEBUG) Slog.d(TAG, "Firing onSwipeFromBottom");
  276.                          mCallbacks.onSwipeFromBottom();
  277. +                        mContext.sendBroadcast(new Intent("action_show_navigationbar"));
  278.                      } else if (swipe == SWIPE_FROM_RIGHT) {
  279.                          if (DEBUG) Slog.d(TAG, "Firing onSwipeFromRight");
  280.                          mCallbacks.onSwipeFromRight();

2. 上面修改中有一行代码android:src="@drawable/ic_sysbar_hide"引用了一个ic_sysbar_hide.xml文件，该文件内容如下：其实就是那个隐藏按钮的矢量图代码

  1. <?xml version="1.0" encoding="utf-8"?>
  2. <vector xmlns:android="http://schemas.android.com/apk/res/android"
  3.     android:width="18dp"
  4.     android:height="18dp"
  5.     android:viewportWidth="35"
  6.     android:viewportHeight="35">
  7.  
  8.     <path
  9.         android:fillColor="#66cccccc"
  10.         android:pathData="M21.314,25.837l9.898-9.9c0.782-0.782,2.049-0.782,2.829,0c0.78,0.781,0.781,2.049,0,2.831L22.73,30.079
  11.             c-0.001,0.002-0.001,0.002-0.001,0.002c-0.39,0.391-0.902,0.586-1.415,0.586s-1.024-0.195-1.415-0.586L8.585,18.768
  12.             c-0.782-0.781-0.779-2.049,0-2.831c0.781-0.782,2.049-0.782,2.831,0L21.314,25.837z"/>
  13. </vector>

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