如何解决安卓系统卡顿问题（优化安卓系统）

原创已于 2025-09-19 10:58:29 修改 · 744 阅读

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#android

于 2025-06-25 18:15:24 首次发布

代码修改位置：

frameworks/base/core/res/res/values/config.xml

frameworks/base/packages/SystemUI/res/values/config.xml

frameworks/native/data/etc/tablet_core_hardware.xml

补丁如下：

diff --git a/core/res/res/values/config.xml b/core/res/res/values/config.xml
index e4839d7..979dc4c 100644
--- a/core/res/res/values/config.xml
+++ b/core/res/res/values/config.xml
@@ -1727,12 +1727,12 @@
          Consider setting this resource to false or disabling dreams by default when a
          doze component is specified below since dreaming will supercede dozing and
          will prevent the system from entering a low power state until the dream ends. -->
-    <bool name="config_dreamsSupported">true</bool>
+    <bool name="config_dreamsSupported">false</bool>
 
     <!-- If supported, are dreams enabled? (by default) -->
-    <bool name="config_dreamsEnabledByDefault">true</bool>
+    <bool name="config_dreamsEnabledByDefault">false</bool>
     <!-- If supported and enabled, are dreams activated when docked? (by default) -->
-    <bool name="config_dreamsActivatedOnDockByDefault">true</bool>
+    <bool name="config_dreamsActivatedOnDockByDefault">false</bool>
     <!-- If supported and enabled, are dreams activated when asleep and charging? (by default) -->
     <bool name="config_dreamsActivatedOnSleepByDefault">false</bool>
     <!-- ComponentName of the default dream (Settings.Secure.DEFAULT_SCREENSAVER_COMPONENT) -->
diff --git a/packages/SystemUI/res/values/config.xml b/packages/SystemUI/res/values/config.xml
index da5f4bf..0ba5e10 100644
--- a/packages/SystemUI/res/values/config.xml
+++ b/packages/SystemUI/res/values/config.xml
@@ -25,10 +25,10 @@
     <bool name="config_recents_use_hardware_layers">false</bool>
 
     <!-- The number of app thumbnails we keep in memory -->
-    <integer name="config_recents_max_thumbnail_count">10</integer>
+    <integer name="config_recents_max_thumbnail_count">2</integer>
 
     <!-- The number of app icons we keep in memory -->
-    <integer name="config_recents_max_icon_count">20</integer>
+    <integer name="config_recents_max_icon_count">5</integer>
 
     <!-- Whether to use cheap, less good looking shadows for recents -->
     <bool name="config_recents_fake_shadows">false</bool>
@@ -50,7 +50,7 @@
 
     <!-- How many icons may be shown at once in the system bar. Includes any
          slots that may be reused for things like IME control. -->
-    <integer name="config_maxNotificationIcons">5</integer>
+    <integer name="config_maxNotificationIcons">3</integer>
 
     <!-- Show phone (voice) signal strength instead of data in mobile RSSI. -->
     <bool name="config_showPhoneRSSIForData">false</bool>
@@ -68,7 +68,7 @@
     <integer translatable="false" name="config_search_panel_view_vibration_duration">20</integer>
 
     <!-- Show camera affordance on Keyguard -->
-    <bool name="config_keyguardShowCameraAffordance">true</bool>
+    <bool name="config_keyguardShowCameraAffordance">false</bool>
 
     <!-- Whether we should use SRC drawing mode when drawing the scrim behind. If this flag is set,
          we change the canvas opacity so libhwui doesn't call glClear on our surface, and then we
@@ -280,7 +280,7 @@
     <string name="config_systemUIFactoryComponent" translatable="false">com.android.systemui.SystemUIFactory</string>
 
     <!-- Nav bar button default ordering/layout -->
-    <string name="config_navBarLayout" translatable="false">space;volume_sub,back,home,recent,volume_add,screenshot;menu_ime</string>
+    <string name="config_navBarLayout" translatable="false">left;back,home,recent;right</string>
 
     <bool name="quick_settings_show_full_alarm">false</bool>

//tablet_core_hardware.xml 硬件特性声明文件
//这个文件是 Android 系统用于声明设备支持的硬件功能的核心配置文件。它告诉 Android 框架和应用程序该设备具备哪些硬件能力（如摄像头、蓝牙、GPS 等）。

diff --git a/data/etc/tablet_core_hardware.xml b/data/etc/tablet_core_hardware.xml
index e8ad508..2a1a57c 100644
--- a/data/etc/tablet_core_hardware.xml
+++ b/data/etc/tablet_core_hardware.xml
@@ -54,11 +54,11 @@
     <feature name="android.hardware.wifi.direct" />
 
 
-    <feature name="android.hardware.camera.any" />
+    <!--feature name="android.hardware.camera.any" />
     <feature name="android.hardware.camera" />
     <feature name="android.hardware.camera.autofocus" />
     <feature name="android.hardware.camera.flash" />
-    <feature name="android.hardware.camera.front" />
+    <feature name="android.hardware.camera.front" /-->

//将 5 个与摄像头相关的 <feature> 标签全部用 <!-- ... --> XML 注释符号包裹起来。

这意味着系统不再声明支持任何类型的摄像头（后置、前置、自动对焦、闪光灯等）
 
 
     <feature name="android.hardware.usb.accessory" />
@@ -72,8 +72,8 @@
 
     <feature name="android.hardware.audio.low_latency" />
 
-    <feature name="android.hardware.bluetooth" />
-    <feature name="android.hardware.bluetooth_le" />
+    <!--feature name="android.hardware.bluetooth" />
+    <feature name="android.hardware.bluetooth_le" /-->
 
     <feature name="android.hardware.ethernet" />

将 2 个与蓝牙相关的 <feature> 标签也注释掉了。

这意味着系统不再声明支持经典蓝牙 (android.hardware.bluetooth) 和蓝牙低功耗 (android.hardware.bluetooth_le)。

1. 禁用屏保功能（Dreams）
diff
- <bool name="config_dreamsSupported">true</bool>
+ <bool name="config_dreamsSupported">false</bool>
- <bool name="config_dreamsEnabledByDefault">true</bool>
+ <bool name="config_dreamsEnabledByDefault">false</bool>
- <bool name="config_dreamsActivatedOnDockByDefault">true</bool>
+ <bool name="config_dreamsActivatedOnDockByDefault">false</bool>
作用：彻底禁用屏保功能（充电/底座模式下的交互屏保）
优化点：减少后台服务、节省内存/CPU占用，提高系统响应速度

2. 降低最近任务资源消耗
diff
- <integer name="config_recents_max_thumbnail_count">10</integer>
+ <integer name="config_recents_max_thumbnail_count">2</integer>
- <integer name="config_recents_max_icon_count">20</integer>
+ <integer name="config_recents_max_icon_count">5</integer>
作用：将最近任务（多任务视图）的缩略图缓存从10个减至2个，图标缓存从20个减至5个

优化点：显著减少GPU内存占用（尤其低端设备），加快最近任务打开速度

3. 限制状态栏通知图标
diff
- <integer name="config_maxNotificationIcons">5</integer>
+ <integer name="config_maxNotificationIcons">3</integer>
作用：状态栏最多显示3个通知图标（超出时折叠）

优化点：减少状态栏绘制复杂度，提升通知栏滑动流畅度

4. 禁用锁屏相机快捷入口
diff
- <bool name="config_keyguardShowCameraAffordance">true</bool>
+ <bool name="config_keyguardShowCameraAffordance">false</bool>
作用：移除锁屏界面右下角的相机快捷入口

优化点：减少锁屏界面渲染负载，避免误触唤醒相机消耗资源

5. 简化导航栏布局
diff
- <string name="config_navBarLayout">space;volume_sub,back,home,recent,volume_add,screenshot;menu_ime</string>
+ <string name="config_navBarLayout">left;back,home,recent;right</string>
作用：删除音量键、截图键等非常用按钮，仅保留基础导航键（返回/主页/最近任务）

优化点：减少导航栏视图层级复杂度避免多余按键监听服务降低触控事件处理开销

整体优化效果
优化方向具体措施         性能收益
功能精简禁用屏保、锁屏相机         减少后台服务/唤醒
内存优化缩减最近任务缓存量         降低GPU/内存压力
UI渲染简化简化导航栏/限制通知图标提升界面流畅度
事件处理优化移除非常用物理/虚拟按键减少输入事件分发延迟
适用场景：通过牺牲非核心特性换取系统流畅性。