Android 11 SystemUI(状态/导航栏)-图标按键的深浅色

news/2024/11/22 12:43:53/

概述

自 Android 5.0 版本，Android 带来了沉浸式系统 bar（状态栏和导航栏），Android 的视觉效果进一步提高，各大 app 厂商也在大多数场景上使用沉浸式效果。6.0开始提供了View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR标志位，将状态栏设置为浅色模式, 清除掉这个标志, 可以恢复为深色模式.

引自:Android M如何设置状态栏图标黑白色
在这里插入图片描述

App调用方法

主题设置加入, 暗灰图标

<item name="android:windowLightStatusBar">true</item>

代码中实现切换

public static void changeStatusBarContrastStyle(Window window, Boolean lightIcons) {View decorView = window.getDecorView();if (lightIcons) {// Draw light icons on a dark background colordecorView.setSystemUiVisibility(decorView.getSystemUiVisibility() & ~View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR);} else {// Draw dark icons on a light background colordecorView.setSystemUiVisibility(decorView.getSystemUiVisibility() | View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR);}}

需要更高SDK支持:

//icon color -> black  
activity.getWindow().getDecorView().getWindowInsetsController().setSystemBarsAppearance(APPEARANCE_LIGHT_STATUS_BARS, APPEARANCE_LIGHT_STATUS_BARS);//icon color -> white
activity.getWindow().getDecorView().getWindowInsetsController().setSystemBarsAppearance(0, APPEARANCE_LIGHT_STATUS_BARS);

色调变化流程

frameworks/base/core/java/android/view/View.java

    @Deprecatedpublic void setSystemUiVisibility(int visibility) {if (visibility != mSystemUiVisibility) {mSystemUiVisibility = visibility;if (mParent != null && mAttachInfo != null && !mAttachInfo.mRecomputeGlobalAttributes) {mParent.recomputeViewAttributes(this);}}}

frameworks/base/core/java/android/view/ViewRootImpl.java

    @Overridepublic void recomputeViewAttributes(View child) {checkThread();if (mView == child) {mAttachInfo.mRecomputeGlobalAttributes = true;if (!mWillDrawSoon) {scheduleTraversals();}}}

frameworks/base/services/core/java/com/android/server/wm/DisplayPolicy.java

    int updateSystemUiVisibilityLw() {//...Ignore....mHandler.post(() -> {StatusBarManagerInternal statusBar = getStatusBarManagerInternal();if (statusBar != null) {final int displayId = getDisplayId();statusBar.setDisableFlags(displayId, visibility & StatusBarManager.DISABLE_MASK,cause);if (transientState.first.length > 0) {statusBar.showTransient(displayId, transientState.first);}if (transientState.second.length > 0) {statusBar.abortTransient(displayId, transientState.second);}statusBar.onSystemBarAppearanceChanged(displayId, appearance,appearanceRegions, isNavbarColorManagedByIme);statusBar.topAppWindowChanged(displayId, isFullscreen, isImmersive);// TODO(b/118118435): Remove this after removing system UI visibilities.synchronized (mLock) {mDisplayContent.statusBarVisibilityChanged(visibility & ~(View.STATUS_BAR_UNHIDE | View.NAVIGATION_BAR_UNHIDE));}}});return diff;}