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Android10: 动态隐藏导航栏和状态栏总结

(1)全屏相关设置

//(1)主题添加
<item name="android:windowFullscreen">true</item>//(2)setContentView之前添加
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,WindowManager.LayoutParams.FLAG_FULLSCREEN);  //(3)任意位置添加flag
getWindow().addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN) //隐藏状态栏   
getWindow().clearFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN) //显示状态栏  //(4)通过setsystemUiVisibility添加
int uiOptions = View.SYSTEM_UI_LAYOUT_FLAGS| View.SYSTEM_UI_FLAG_LAYOUT_STABLE| View.SYSTEM_UI_FLAG_FULLSCREEN| View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN| View.SYSTEM_UI_FLAG_HIDE_NAVIGATION| View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION| View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY;getWindow().getDecorView().setSystemUiVisibility(uiOptions);getWindow().setStatusBarColor(Color.TRANSPARENT);//透明状态栏
getWindow().setNavigationBarColor(Color.TRANSPARENT);  //透明导航栏

(2)部分属性解析

//默认显示状态栏和导航栏
View.SYSTEM_UI_FLAG_VISIBLE
//低调模式,隐藏不重要的状态栏图标,导航栏中相应的图标都变成了一个小点
View.SYSTEM_UI_FLAG_LOW_PROFILE
//稳定布局,需要配合SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION和SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN使用,同时设置布局的android:fitsSystemWindows属性
View.SYSTEM_UI_FLAG_LAYOUT_STABLE//全屏显示,隐藏状态栏,点击屏幕区域不会出现,需要从状态栏位置下拉才会出现
View.SYSTEM_UI_FLAG_FULLSCREEN
//全屏显示,将布局内容拓展到导航栏和状态栏的后面,状态栏不会被隐藏覆盖,状态栏依然可见,Activity布局部分会被状态栏遮挡
View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
//隐藏导航栏,点击屏幕任意区域,导航栏将重新出现,并且不会自动消失
View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
//将布局内容拓展到导航栏的后面
View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION//配合SYSTEM_UI_FLAG_HIDE_NAVIGATION和SYSTEM_UI_FLAG_FULLSCREEN使用,使状态栏和导航栏真正的进入沉浸模式。
//点击屏幕任意区域,不会退出全屏模式,只有用户上下拉状态栏或者导航栏时才会退出——这个属性会导致拉出后状态栏和导航栏不会被自动隐藏
View.SYSTEM_UI_FLAG_IMMERSIVE
//效果跟View.SYSTEM_UI_FLAG_IMMERSIVE一样。但是,它在全屏模式下,用户上下拉状态栏或者导航栏时,这些系统栏只是以半透明的状态显示出来,并且在一定时间后会自动消失
View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY

(3)不允许上下拉出现状态栏和导航栏需求

View.SYSTEM_UI_FLAG_FULLSCREEN
View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY

通过以上属性来隐藏状态栏和导航栏,发现上下拉还是会出现状态栏和导航栏,现在的需求是不要出现状态栏和导航栏。

可通过如下方式拦截:

//frameworks/base/services/core/java/com/android/server/wm/SystemGesturesPointerEventListener.javainterface Callbacks {void onSwipeFromTop();void onSwipeFromBottom();void onSwipeFromRight();void onSwipeFromLeft();void onFling(int durationMs);void onDown();void onUpOrCancel();void onMouseHoverAtTop();void onMouseHoverAtBottom();void onMouseLeaveFromEdge();void onDebug();
}private final Callbacks mCallbacks;SystemGesturesPointerEventListener(Context context, Handler handler, Callbacks callbacks) {mContext = checkNull("context", context);mHandler = handler;mCallbacks = checkNull("callbacks", callbacks);onConfigurationChanged();
}public void onPointerEvent(MotionEvent event) {if (mGestureDetector != null && event.isTouchEvent()) {mGestureDetector.onTouchEvent(event);}switch (event.getActionMasked()) {case MotionEvent.ACTION_DOWN:mSwipeFireable = true;mDebugFireable = true;mDownPointers = 0;captureDown(event, 0);if (mMouseHoveringAtEdge) {mMouseHoveringAtEdge = false;mCallbacks.onMouseLeaveFromEdge();}mCallbacks.onDown();break;case MotionEvent.ACTION_POINTER_DOWN:captureDown(event, event.getActionIndex());if (mDebugFireable) {mDebugFireable = event.getPointerCount() < 5;if (!mDebugFireable) {if (DEBUG) Slog.d(TAG, "Firing debug");mCallbacks.onDebug();}}break;case MotionEvent.ACTION_MOVE:if (mSwipeFireable) {final int swipe = detectSwipe(event);mSwipeFireable = swipe == SWIPE_NONE;if (swipe == SWIPE_FROM_TOP) {if (DEBUG) Slog.d(TAG, "Firing onSwipeFromTop");mCallbacks.onSwipeFromTop();} else if (swipe == SWIPE_FROM_BOTTOM) {if (DEBUG) Slog.d(TAG, "Firing onSwipeFromBottom");mCallbacks.onSwipeFromBottom();} else if (swipe == SWIPE_FROM_RIGHT) {if (DEBUG) Slog.d(TAG, "Firing onSwipeFromRight");mCallbacks.onSwipeFromRight();} else if (swipe == SWIPE_FROM_LEFT) {if (DEBUG) Slog.d(TAG, "Firing onSwipeFromLeft");mCallbacks.onSwipeFromLeft();}}break;case MotionEvent.ACTION_HOVER_MOVE:if (event.isFromSource(InputDevice.SOURCE_MOUSE)) {if (!mMouseHoveringAtEdge && event.getY() == 0) {mCallbacks.onMouseHoverAtTop();mMouseHoveringAtEdge = true;} else if (!mMouseHoveringAtEdge && event.getY() >= screenHeight - 1) {mCallbacks.onMouseHoverAtBottom();mMouseHoveringAtEdge = true;} else if (mMouseHoveringAtEdge&& (event.getY() > 0 && event.getY() < screenHeight - 1)) {mCallbacks.onMouseLeaveFromEdge();mMouseHoveringAtEdge = false;}}break;case MotionEvent.ACTION_UP:case MotionEvent.ACTION_CANCEL:mSwipeFireable = false;mDebugFireable = false;mCallbacks.onUpOrCancel();break;default:if (DEBUG) Slog.d(TAG, "Ignoring " + event);}}

 可从如上回调函数位置屏蔽相关滑动事件,从而实现不在出现状态栏和导航栏

//frameworks/base/services/core/java/com/android/server/wm/DisplayPolicy.javaprivate final SystemGesturesPointerEventListener mSystemGestures;mSystemGestures = new SystemGesturesPointerEventListener(mUiContext, mHandler,new SystemGesturesPointerEventListener.Callbacks() {//从上往下滑触发@Overridepublic void onSwipeFromTop() {//通过包名等判断条件,屏蔽上下滑动事件,从而不出现导航栏和状态栏if(tempStatus()){Slog.i(TAG, "onSwipeFromTop not Status Bar");return;}}//从下往上滑触发@Overridepublic void onSwipeFromBottom() {//通过包名等判断条件,屏蔽上下滑动事件,从而不出现导航栏和状态栏if(tempStatus()){Slog.i(TAG, "onSwipeFromBottom not Navigation Bar");return;}}//从右往左滑触发@Overridepublic void onSwipeFromRight() {}//从左往右滑触发@Overridepublic void onSwipeFromLeft() {}@Overridepublic void onFling(int duration) {}@Overridepublic void onDebug() {}@Overridepublic void onDown() {}@Overridepublic void onUpOrCancel() {}@Overridepublic void onMouseHoverAtTop() {}@Overridepublic void onMouseHoverAtBottom() {}@Overridepublic void onMouseLeaveFromEdge() {}});private boolean tempStatus(){int tempEnable = Settings.Global.getInt(mContext.getContentResolver(), "temp_value", 0);ActivityManager am = (ActivityManager) mContext.getSystemService(Context.ACTIVITY_SERVICE);List<ActivityManager.RunningTaskInfo> runningTasks = am.getRunningTasks(1);String topActivityPackage = "";if (runningTasks != null && !runningTasks.isEmpty()) {ActivityManager.RunningTaskInfo taskInfo = runningTasks.get(0);topActivityPackage = taskInfo.topActivity.getPackageName();}Slog.i(TAG, "dxf_tempStatus tempEnable = "+ tempEnable + ", topActivityPackage = " + topActivityPackage);return tempEnable == 1 && "com.xxxx.xxxx".equals(topActivityPackage);}

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