【干货】Android系统定制基础篇：第十三部分(开放root权限、禁止应用旋转、隐藏状态栏和导航栏)

一、Android开放root权限

Android 5.1
1、修改 su 源码（system\extras\su\su.c），注释下面代码:

int main(int argc, char **argv)
{struct passwd *pw;uid_t uid, myuid;gid_t gid, gids[10];/* Until we have something better, only root and the shell can use su. *//* 注释下面代码myuid = getuid();if (myuid != AID_ROOT && myuid != AID_SHELL) {fprintf(stderr,"su: uid %d not allowed to su\n", myuid);return 1;}*/if(argc < 2) {uid = gid = 0;} else {int gids_count = sizeof(gids)/sizeof(gids[0]);extract_uidgids(argv[1], &uid, &gid, gids, &gids_count);if(gids_count) {if(setgroups(gids_count, gids)) {fprintf(stderr, "su: failed to set groups\n");return 1;}}}

2、修改（system\core\include\private\android_filesystem_config.h）默认权限改为『04755』

- { 04750, AID_ROOT,      AID_SHELL,     0, "system/xbin/su" },
+ { 04755, AID_ROOT,      AID_SHELL,     0, "system/xbin/su" },

3、编译

Android$ mmm system/extras/su

4、替换 su 程序

$ adb push su system/xbin/

5、修改权限

$ adb shell
$ chmod 04755 system/xbin/su

6、APP 中获取 root 权限

Process process = Runtime.getRuntime().exec("su");

Android 8.1

commit 47fd12ee992aac429a501b3d00fc3435ba67b137
Author: shenhb <shenhb@topband.com.cn>
Date:   Sun Dec 16 15:56:37 2018 +0800支持APP获取root权限diff --git a/device/rockchip/common/BoardConfig.mk b/device/rockchip/common/BoardConfig.mk
index 85e083f..4ae7370 100755
--- a/device/rockchip/common/BoardConfig.mk
+++ b/device/rockchip/common/BoardConfig.mk
@@ -387,4 +387,7 @@ CAMERA_SUPPORT_AUTOFOCUS ?= falseBOARD_USB_ALLOW_DEFAULT_MTP ?= falseHIGH_RELIABLE_RECOVERY_OTA := false
-BOARD_USES_FULL_RECOVERY_IMAGE := false
\ No newline at end of file
+BOARD_USES_FULL_RECOVERY_IMAGE := false
+
+#root
+CUSTOM_ROOT ?= true
\ No newline at end of file
diff --git a/frameworks/base/cmds/app_process/Android.mk b/frameworks/base/cmds/app_process/Android.mk
old mode 100644
new mode 100755
index 72fe051..73b8600
--- a/frameworks/base/cmds/app_process/Android.mk
+++ b/frameworks/base/cmds/app_process/Android.mk
@@ -48,6 +48,9 @@ LOCAL_MODULE_STEM_32 := app_process32LOCAL_MODULE_STEM_64 := app_process64LOCAL_CFLAGS += $(app_process_cflags)
+ifeq ($(CUSTOM_ROOT),true)
+	LOCAL_CFLAGS += -DCUSTOM_ROOT
+endif# In SANITIZE_LITE mode, we create the sanitized binary in a separate location (but reuse# the same module). Using the same module also works around an issue with make: binaries
diff --git a/frameworks/base/core/jni/Android.bp b/frameworks/base/core/jni/Android.bp
old mode 100644
new mode 100755
index c629341..282a373
--- a/frameworks/base/core/jni/Android.bp
+++ b/frameworks/base/core/jni/Android.bp
@@ -27,7 +27,10 @@ cc_library_shared {//"-DANDROID_ENABLE_LINEAR_BLENDING",],-    cppflags: ["-Wno-conversion-null"],
+    cppflags: [
+		"-Wno-conversion-null",
+		"-DCUSTOM_ROOT",
+	],srcs: ["AndroidRuntime.cpp",
diff --git a/frameworks/base/core/jni/com_android_internal_os_Zygote.cpp b/frameworks/base/core/jni/com_android_internal_os_Zygote.cpp
old mode 100644
new mode 100755
index e1c2cb0..ad760f9
--- a/frameworks/base/core/jni/com_android_internal_os_Zygote.cpp
+++ b/frameworks/base/core/jni/com_android_internal_os_Zygote.cpp
@@ -241,6 +241,8 @@ static void EnableKeepCapabilities(JNIEnv* env) {}static void DropCapabilitiesBoundingSet(JNIEnv* env) {
+#ifndef CUSTOM_ROOT
+sdffor (int i = 0; prctl(PR_CAPBSET_READ, i, 0, 0, 0) >= 0; i++) {int rc = prctl(PR_CAPBSET_DROP, i, 0, 0, 0);if (rc == -1) {
@@ -253,6 +255,7 @@ static void DropCapabilitiesBoundingSet(JNIEnv* env) {}}}
+#endif}static void SetInheritable(JNIEnv* env, uint64_t inheritable) {
diff --git a/system/core/init/Android.mk b/system/core/init/Android.mk
old mode 100644
new mode 100755
index 3f3bbb3..8f94d7a
--- a/system/core/init/Android.mk
+++ b/system/core/init/Android.mk
@@ -36,6 +36,10 @@ ifeq ($(BUILD_WITH_GO_OPT), true)init_cflags += -DDISABLE_VERIFY=1endif+ifeq ($(CUSTOM_ROOT),true)
+	init_cflags += -DCUSTOM_ROOT
+endif
+init_cflags += \$(init_options) \-Wall -Wextra \
diff --git a/system/core/init/init.cpp b/system/core/init/init.cpp
old mode 100644
new mode 100755
index 5a073af..14c914b
--- a/system/core/init/init.cpp
+++ b/system/core/init/init.cpp
@@ -635,6 +635,9 @@ static selinux_enforcing_status selinux_status_from_cmdline() {static bool selinux_is_enforcing(void){
+#ifdef CUSTOM_ROOT
+    return false;
+#endifif (ALLOW_PERMISSIVE_SELINUX) {return selinux_status_from_cmdline() == SELINUX_ENFORCING;}
diff --git a/system/core/libcutils/Android.bp b/system/core/libcutils/Android.bp
old mode 100644
new mode 100755
index d00ff5f..1650b0a
--- a/system/core/libcutils/Android.bp
+++ b/system/core/libcutils/Android.bp
@@ -161,6 +161,8 @@ cc_library {"-Wall","-Wextra",],
+	
+	cppflags: ["-DCUSTOM_ROOT"],clang: true,}
diff --git a/system/core/libcutils/fs_config.cpp b/system/core/libcutils/fs_config.cpp
old mode 100644
new mode 100755
index cc96ff8..a710d92
--- a/system/core/libcutils/fs_config.cpp
+++ b/system/core/libcutils/fs_config.cpp
@@ -166,7 +166,11 @@ static const struct fs_path_config android_files[] = {// the following two files are INTENTIONALLY set-uid, but they// are NOT included on user builds.{ 06755, AID_ROOT,      AID_ROOT,      0, "system/xbin/procmem" },
+#ifdef CUSTOM_ROOT
+    { 04755, AID_ROOT,      AID_SHELL,     0, "system/xbin/su" },
+#else{ 04750, AID_ROOT,      AID_SHELL,     0, "system/xbin/su" },
+#endif// the following files have enhanced capabilities and ARE included// in user builds.
diff --git a/system/extras/su/Android.mk b/system/extras/su/Android.mk
old mode 100644
new mode 100755
index 92ad5e3..92ab3c56
--- a/system/extras/su/Android.mk
+++ b/system/extras/su/Android.mk
@@ -3,6 +3,10 @@ include $(CLEAR_VARS)LOCAL_CFLAGS := -Wall -Werror+ifeq ($(CUSTOM_ROOT),true)
+	LOCAL_CFLAGS += -DCUSTOM_ROOT
+endif
+LOCAL_SRC_FILES:= su.cppLOCAL_MODULE:= su
diff --git a/system/extras/su/su.cpp b/system/extras/su/su.cpp
old mode 100644
new mode 100755
index ee1526e..f2a15ee
--- a/system/extras/su/su.cpp
+++ b/system/extras/su/su.cpp
@@ -81,8 +81,11 @@ void extract_uidgids(const char* uidgids, uid_t* uid, gid_t* gid, gid_t* gids, i}int main(int argc, char** argv) {
+#ifndef CUSTOM_ROOTuid_t current_uid = getuid();if (current_uid != AID_ROOT && current_uid != AID_SHELL) error(1, 0, "not allowed");
+#endif// Handle -h and --help.++argv;

二、Android禁止应用旋转

在 Android 系统里，应用运行时可以指定横屏或竖屏显示，但对于Android Box 和 TV 等产品，需要所有的应用都以默认方向显示，该方案实现禁止应用旋转屏幕。
修改：

diff --git a/frameworks/base/services/core/java/com/android/server/policy/PhoneWindowManager.java b/frameworks/base/services/core/java/com/android/server/policy/PhoneWindowManager.java
index cebf0a7..4684881 100755
--- a/frameworks/base/services/core/java/com/android/server/policy/PhoneWindowManager.java
+++ b/frameworks/base/services/core/java/com/android/server/policy/PhoneWindowManager.java
@@ -2333,14 +2333,20 @@ public class PhoneWindowManager implements WindowManagerPolicy {mDemoRotationLock = SystemProperties.getBoolean("persist.demo.rotationlock", false);-        // Only force the default orientation if the screen is xlarge, at least 960dp x 720dp, per
-        // http://developer.android.com/guide/practices/screens_support.html#range
-        mForceDefaultOrientation = longSizeDp >= 960 && shortSizeDp >= 720 &&
-                res.getBoolean(com.android.internal.R.bool.config_forceDefaultOrientation) &&
-                // For debug purposes the next line turns this feature off with:
-                // $ adb shell setprop config.override_forced_orient true
-                // $ adb shell wm size reset
-                !"true".equals(SystemProperties.get("config.override_forced_orient"));
+        // Modified by shenhb@topband.com.cn, for no rotation.
+        if ("1".equals(SystemProperties.get("persist.sys.no_rotation", "0"))) {
+            mForceDefaultOrientation = true;
+        } else {
+            // Only force the default orientation if the screen is xlarge, at least 960dp x 720dp, per
+            // http://developer.android.com/guide/practices/screens_support.html#range
+            mForceDefaultOrientation = longSizeDp >= 960 && shortSizeDp >= 720 &&
+                    res.getBoolean(com.android.internal.R.bool.config_forceDefaultOrientation) &&
+                    // For debug purposes the next line turns this feature off with:
+                    // $ adb shell setprop config.override_forced_orient true
+                    // $ adb shell wm size reset
+                    !"true".equals(SystemProperties.get("config.override_forced_orient"));
+        }
+        // Modified end}/**
diff --git a/frameworks/base/services/core/java/com/android/server/wm/DisplayContent.java b/frameworks/base/services/core/java/com/android/server/wm/DisplayContent.java
index 088ad84..0e26f03 100755
--- a/frameworks/base/services/core/java/com/android/server/wm/DisplayContent.java
+++ b/frameworks/base/services/core/java/com/android/server/wm/DisplayContent.java
@@ -916,6 +916,12 @@ class DisplayContent extends WindowContainer<DisplayContent.DisplayChildWindowCo* {@link WindowManagerService#sendNewConfiguration(int)} TO UNFREEZE THE SCREEN.*/boolean updateRotationUnchecked(boolean inTransaction) {
+        // Added by shenhb@topband.com.cn, for no rotation.
+        if ("1".equals(SystemProperties.get("persist.sys.no_rotation", "0"))) {
+            return true;
+        }
+        // Add end
+if (mService.mDeferredRotationPauseCount > 0) {// Rotation updates have been paused temporarily.  Defer the update until// updates have been resumed.diff --git a/packages/apps/Settings/res/values-zh-rCN/strings.xml b/packages/apps/Settings/res/values-zh-rCN/strings.xml
index a0073cc..718493a 100755
--- a/packages/apps/Settings/res/values-zh-rCN/strings.xml
+++ b/packages/apps/Settings/res/values-zh-rCN/strings.xml
@@ -3752,6 +3752,7 @@<string name="sleep_setting_title">永不休眠</string><string name="systembar_setting_title">隐藏状态栏与导航栏</string><string name="camera_facing_setting_title">摄像头前后置</string>
+    <string name="app_rotation_setting_title">禁止应用旋转</string><string name="camera_angle_setting_title">摄像头默认角度</string><string name="watchdog_setting_title">看门狗</string><string name="otg_mode_setting_title">OTG</string>
diff --git a/packages/apps/Settings/res/xml/display_settings.xml b/packages/apps/Settings/res/xml/display_settings.xml
index 0099796..de2c53d 100755
--- a/packages/apps/Settings/res/xml/display_settings.xml
+++ b/packages/apps/Settings/res/xml/display_settings.xml
@@ -119,6 +119,10 @@android:entryValues="@array/lcd_density_values" /><SwitchPreference
+        android:key="app_rotation"
+        android:title="@string/app_rotation_setting_title" />
+
+    <SwitchPreferenceandroid:key="hide_systembar"android:title="@string/systembar_setting_title" />diff --git a/packages/apps/Settings/src/com/android/settings/DisplaySettings.java b/packages/apps/Settings/src/com/android/settings/DisplaySettings.java
index 4e5499f..9141a95 100755
--- a/packages/apps/Settings/src/com/android/settings/DisplaySettings.java
+++ b/packages/apps/Settings/src/com/android/settings/DisplaySettings.java
@@ -40,6 +40,7 @@ import com.android.settings.display.TouchScreenYReversePreferenceController;import com.android.settings.display.ScreenRotationPreferenceController;import com.android.settings.display.LcdDensityPreferenceController;import com.android.settings.display.SystembarPreferenceController;
+import com.android.settings.display.AppRotationPreferenceController;import com.android.settings.display.SleepPreferenceController;import com.android.settings.display.CameraMirrorPreferenceController;import com.android.settings.display.OtgModePreferenceController;
@@ -115,6 +116,7 @@ public class DisplaySettings extends DashboardFragment {controllers.add(new LcdDensityPreferenceController(context));controllers.add(new ScreenRotationPreferenceController(context));controllers.add(new SystembarPreferenceController(context));
+        controllers.add(new AppRotationPreferenceController(context));controllers.add(new SleepPreferenceController(context));controllers.add(new CameraMirrorPreferenceController(context));controllers.add(new OtgModePreferenceController(context));
diff --git a/packages/apps/Settings/src/com/android/settings/display/AppRotationPreferenceController.java b/packages/apps/Settings/src/com/android/settings/display/AppRotationPreferenceController.java
new file mode 100755
index 0000000..038ecd2
--- /dev/null
+++ b/packages/apps/Settings/src/com/android/settings/display/AppRotationPreferenceController.java
@@ -0,0 +1,65 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software distributed under the
+ * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the specific language governing
+ * permissions and limitations under the License.
+ */
+package com.android.settings.display;
+
+import android.content.Context;
+import android.support.v7.preference.Preference;
+import android.support.v7.preference.TwoStatePreference;
+import android.os.SystemProperties;
+
+import com.android.settings.core.PreferenceControllerMixin;
+import com.android.settingslib.core.AbstractPreferenceController;
+
+public class AppRotationPreferenceController extends AbstractPreferenceController implements
+        PreferenceControllerMixin, Preference.OnPreferenceChangeListener{
+
+    private TwoStatePreference mPreference;
+    private Context mContext;
+
+    public AppRotationPreferenceController(Context context) {
+        super(context);
+        mContext = context;
+    }
+
+    @Override
+    public String getPreferenceKey() {
+        return "app_rotation";
+    }
+    
+    @Override
+    public void updateState(Preference preference) {
+        mPreference = (TwoStatePreference) preference;
+        updatePreference();
+    }
+    
+    @Override
+    public boolean isAvailable() {
+        return true;
+    }
+    
+    @Override
+    public boolean onPreferenceChange(Preference preference, Object newValue) {
+        boolean value = (boolean) newValue;
+        SystemProperties.set("persist.sys.no_rotation", (value ? "1" : "0"));
+        new RebootCountDownDialog(mContext).show();
+        return true;
+    }
+    
+    private void updatePreference() {
+        if (mPreference == null) {
+            return;
+        }
+        mPreference.setChecked(SystemProperties.get("persist.sys.no_rotation").equals("1"));
+    }
+}

属性配置

禁止应用旋转，0：允许旋转，1：禁止旋转

persist.sys.no_rotation=1

三、Android隐藏状态栏和导航栏

Android 5.1
隐藏状态栏
/frameworks/base/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java

private void addStatusBarWindow() {...if("0".equals(SystemProperties.get("persist.sys.hide_statusbar","0"))) {mWindowManager.addView(mStatusBarContainer, lp);}...
}

属性配置：

取值，0：显示，1：隐藏

persist.sys.hide_statusbar=0

隐藏导航栏
/frameworks/base/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java

@Override
public void start() {...if ("0".equals(SystemProperties.get("persist.sys.hide_navbar","0"))) {addNavigationBar();}...
}

属性配置：

# 取值，0：显示，1：隐藏
persist.sys.hide_navbar=0

Android 8.1
支持通过发送广播动态隐藏和显示状态栏与导航栏。

diff --git a/frameworks/base/core/java/android/content/Intent.java b/frameworks/base/core/java/android/content/Intent.java
index 6fd333a..ea32017 100755
--- a/frameworks/base/core/java/android/content/Intent.java
+++ b/frameworks/base/core/java/android/content/Intent.java
@@ -632,6 +632,16 @@ public class Intent implements Parcelable, Cloneable {private static final String ATTR_COMPONENT = "component";private static final String ATTR_DATA = "data";private static final String ATTR_FLAGS = "flags";
+    
+    /**
+     * Show system ui (status bar and navigation bar)
+     **/
+    public static final String ACTION_SYSTEM_BAR_SHOW = "android.intent.action.SYSTEM_BAR_SHOW";
+    
+    /**
+     * Hide system ui (status bar and navigation bar)
+     **/
+    public static final String ACTION_SYSTEM_BAR_HIDE = "android.intent.action.SYSTEM_BAR_HIDE";
+
+    /**
+     * Show system ui (status bar)
+     **/
+    public static final String ACTION_SYSTEM_STATUS_BAR_SHOW = "android.intent.action.SYSTEM_STATUS_BAR_SHOW";
+    
+    /**
+     * Hide system ui (status bar)
+     **/
+    public static final String ACTION_SYSTEM_STATUS_BAR_HIDE = "android.intent.action.SYSTEM_STATUS_BAR_HIDE";
+    
+    /**
+     * Show system ui (navigation bar)
+     **/
+    public static final String ACTION_SYSTEM_NAVIGATION_BAR_SHOW = "android.intent.action.SYSTEM_NAVIGATION_BAR_SHOW";
+    
+    /**
+     * Hide system ui (navigation bar)
+     **/
+    public static final String ACTION_SYSTEM_NAVIGATION_BAR_HIDE = "android.intent.action.SYSTEM_NAVIGATION_BAR_HIDE";// ---------------------------------------------------------------------// ---------------------------------------------------------------------
diff --git a/frameworks/base/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBar.java b/frameworks/base/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBar.java
index 0db768d..5c846b8 100755
--- a/frameworks/base/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBar.java
+++ b/frameworks/base/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBar.java
@@ -309,7 +309,7 @@ public class StatusBar extends SystemUI implements DemoMode,private static final String NOTIFICATION_UNLOCKED_BY_WORK_CHALLENGE_ACTION= "com.android.systemui.statusbar.work_challenge_unlocked_notification_action";public static final String TAG = "StatusBar";public static final boolean DEBUG = false;public static final boolean SPEW = false;public static final boolean DUMPTRUCK = true; // extra dumpsys infopublic static final boolean DEBUG_GESTURES = false;
@@ -1238,6 +1238,8 @@ public class StatusBar extends SystemUI implements DemoMode,filter.addAction(Intent.ACTION_CLOSE_SYSTEM_DIALOGS);filter.addAction(Intent.ACTION_SCREEN_OFF);filter.addAction(DevicePolicyManager.ACTION_SHOW_DEVICE_MONITORING_DIALOG);
+        filter.addAction(Intent.ACTION_SYSTEM_BAR_SHOW);
+        filter.addAction(Intent.ACTION_SYSTEM_BAR_HIDE);
+        filter.addAction(Intent.ACTION_SYSTEM_STATUS_BAR_SHOW);
+        filter.addAction(Intent.ACTION_SYSTEM_STATUS_BAR_HIDE);
+        filter.addAction(Intent.ACTION_SYSTEM_NAVIGATION_BAR_SHOW);
+        filter.addAction(Intent.ACTION_SYSTEM_NAVIGATION_BAR_HIDE);context.registerReceiverAsUser(mBroadcastReceiver, UserHandle.ALL, filter, null, null);IntentFilter demoFilter = new IntentFilter();
@@ -1257,6 +1259,12 @@ public class StatusBar extends SystemUI implements DemoMode,// Private API call to make the shadows look better for RecentsThreadedRenderer.overrideProperty("ambientRatio", String.valueOf(1.5f));
+        
+        if ("1".equals(SystemProperties.get("persist.sys.hidestatusbar", "0"))) {
+            setSystemStatusBarVisibility(View.GONE);
+        }
+        if ("1".equals(SystemProperties.get("persist.sys.hidenavbar", "0"))) {
+            setSystemNavigationBarVisibility(View.GONE);
+        }}protected void createNavigationBar() {
@@ -3274,6 +3282,7 @@ public class StatusBar extends SystemUI implements DemoMode,Integer.toHexString(vis), Integer.toHexString(mask),Integer.toHexString(oldVal), Integer.toHexString(newVal),Integer.toHexString(diff)));
+ boolean sbModeChanged = false;if (diff != 0) {mSystemUiVisibility = newVal;
@@ -3806,6 +3815,10 @@ public class StatusBar extends SystemUI implements DemoMode,}else if (DevicePolicyManager.ACTION_SHOW_DEVICE_MONITORING_DIALOG.equals(action)) {mQSPanel.showDeviceMonitoringDialog();
+            } else if (Intent.ACTION_SYSTEM_BAR_SHOW.equals(action)) {
+                setSystemStatusBarVisibility(View.VISIBLE);
+                setSystemNavigationBarVisibility(View.VISIBLE);
+            } else if (Intent.ACTION_SYSTEM_BAR_HIDE.equals(action)) {
+                setSystemStatusBarVisibility(View.GONE);
+                setSystemNavigationBarVisibility(View.GONE);
+            } else if (Intent.ACTION_SYSTEM_STATUS_BAR_SHOW.equals(action)) {
+                setSystemStatusBarVisibility(View.VISIBLE);
+            } else if (Intent.ACTION_SYSTEM_STATUS_BAR_HIDE.equals(action)) {
+                setSystemStatusBarVisibility(View.GONE);
+            } else if (Intent.ACTION_SYSTEM_NAVIGATION_BAR_SHOW.equals(action)) {
+                setSystemNavigationBarVisibility(View.VISIBLE);
+            } else if (Intent.ACTION_SYSTEM_NAVIGATION_BAR_HIDE.equals(action)) {
+                setSystemNavigationBarVisibility(View.GONE);}}};
@@ -7578,4 +7591,29 @@ public class StatusBar extends SystemUI implements DemoMode,mNavigationBar.getBarTransitions().setAutoDim(true);}};
+    
+    private void setSystemStatusBarVisibility(int visibility) {
+        if (DEBUG) Log.v(TAG, "setSystemStatusBarVisibility: " + visibility);
+
+        if (visibility == View.GONE && mStatusBarWindow != null) {
+            try {
+                mStatusBarWindow.setVisibility(View.GONE);
+                SystemProperties.set("persist.sys.hidestatusbar", "1");
+            } catch (IllegalArgumentException e) {
+                Log.w(TAG, "IllegalArgumentException: " + e);
+            }
+        } else if (visibility == View.VISIBLE && mStatusBarWindow != null) {
+            try {
+                mStatusBarWindow.setVisibility(View.VISIBLE);
+                SystemProperties.set("persist.sys.hidestatusbar", "0");
+            } catch (WindowManager.BadTokenException e) {
+                Log.w(TAG, "BadTokenException: " + e.getMessage());
+            } catch (RuntimeException e) {
+                Log.w(TAG, "RuntimeException: " + e);
+            }
+        }
+    }
+
+    private void setSystemNavigationBarVisibility(int visibility) {
+        if (DEBUG) Log.v(TAG, "setSystemNavigationBarVisibility: " + visibility);
+
+        if (visibility == View.GONE && mNavigationBarView != null) {
+            try {
+                mWindowManager.removeViewImmediate(mNavigationBarView);
+                SystemProperties.set("persist.sys.hidenavbar", "1");
+            } catch (IllegalArgumentException e) {
+                Log.w(TAG, "IllegalArgumentException: " + e);
+            }
+        } else if (visibility == View.VISIBLE && mNavigationBarView != null) {
+            try {
+                createNavigationBar();
+                SystemProperties.set("persist.sys.hidenavbar", "0");
+            } catch (WindowManager.BadTokenException e) {
+                Log.w(TAG, "BadTokenException: " + e.getMessage());
+            } catch (RuntimeException e) {
+                Log.w(TAG, "RuntimeException: " + e);
+            }
+        }
+    }}
diff --git a/packages/apps/Settings/res/values-zh-rCN/strings.xml b/packages/apps/Settings/res/values-zh-rCN/strings.xml
index c906fef..61b6d5f 100755
--- a/packages/apps/Settings/res/values-zh-rCN/strings.xml
+++ b/packages/apps/Settings/res/values-zh-rCN/strings.xml
@@ -3726,7 +3726,7 @@<string name="new_device_suggestion_summary" product="device" msgid="2939870049868336652">"新设备功能导览"</string><string name="disabled_low_ram_device" msgid="3751578499721173344">"该设备不支持此功能"</string><!--screen shot--><string name="app_name">截屏管理器</string>
@@ -3738,16 +3738,17 @@<string name="later">秒以后截屏</string><string name="abc_on" >"系统日志收集器"</string><string name="abc_on_summary" >"收集的日志保存在/data/logs/目录下"</string><!--Add by shenhb@topband.com.cn--><string name="touch_screen_swap_xy_title">"触摸屏XY方向切换"</string><string name="touch_screen_x_reverse_title">"触摸屏X方向反转"</string><string name="touch_screen_y_reverse_title">"触摸屏Y方向反转"</string><string name="screen_rotation_setting_title">屏幕旋转</string><string name="lcd_density_setting_title">屏幕像素密度</string><string name="navbar_setting_title">隐藏底部导航栏</string><string name="sleep_setting_title">永不休眠</string><string name="dropdown_setting_title">禁止状态栏下拉</string>
+    <string name="statusbar_setting_title">隐藏状态栏</string>
+    <string name="navbar_setting_title">隐藏导航栏</string><string name="app_rotation_setting_title">禁止应用旋转</string><string name="camera_mirror_setting_title">摄像头镜像</string><string name="camera_angle_setting_title">摄像头默认角度</string>
diff --git a/packages/apps/Settings/res/values/strings.xml b/packages/apps/Settings/res/values/strings.xml
index 8b7f3a0..cb693ed 100755
--- a/packages/apps/Settings/res/values/strings.xml
+++ b/packages/apps/Settings/res/values/strings.xml
@@ -9099,7 +9099,7 @@<!-- Note displayed when certain features are not available on low ram devices. [CHAR LIMIT=NONE] --><string name="disabled_low_ram_device">This feature is not available on this device</string><!--screenshot setting --><string name="app_name">ScreenshotManager</string>
@@ -9111,16 +9111,17 @@<string name="later">s later capture</string><string name="abc_on" >"Android bug collector"</string><string name="abc_on_summary" >"Log will be saved in /data/logs/"</string><!--Add by shenhb@topband.com.cn--><string name="touch_screen_swap_xy_title">"Touch Screen swap x2y"</string><string name="touch_screen_x_reverse_title">"Touch Screen x reverse"</string><string name="touch_screen_y_reverse_title">"Touch Screen y reverse"</string><string name="screen_rotation_setting_title">Screen rotation</string><string name="lcd_density_setting_title">Lcd density</string><string name="navbar_setting_title">Hide navigation bar</string><string name="sleep_setting_title">Never sleep</string><string name="dropdown_setting_title">Disable drop-down window</string>
+    <string name="statusbar_setting_title">Hide status bar</string>
+    <string name="navbar_setting_title">Hide navigation bar</string><string name="app_rotation_setting_title">Disable app rotation</string><string name="camera_mirror_setting_title">Camera mirror</string><string name="camera_angle_setting_title">Camera default angle</string>
diff --git a/packages/apps/Settings/res/xml/display_settings.xml b/packages/apps/Settings/res/xml/display_settings.xml
index 5e16f6c..4a7ae13 100755
--- a/packages/apps/Settings/res/xml/display_settings.xml
+++ b/packages/apps/Settings/res/xml/display_settings.xml
@@ -131,6 +131,10 @@android:title="@string/dropdown_setting_title" />+    <SwitchPreference
+        android:key="hide_statusbar"
+        android:title="@string/statusbar_setting_title" />
+        
+    <SwitchPreference
+        android:key="hide_navbar"
+        android:title="@string/navbar_setting_title" /><SwitchPreferenceandroid:key="never_sleep"android:title="@string/sleep_setting_title" />diff --git a/packages/apps/Settings/src/com/android/settings/DisplaySettings.java b/packages/apps/Settings/src/com/android/settings/DisplaySettings.java
index b0a71ff..86f2360 100755
--- a/packages/apps/Settings/src/com/android/settings/DisplaySettings.java
+++ b/packages/apps/Settings/src/com/android/settings/DisplaySettings.java
@@ -41,6 +41,7 @@ import com.android.settings.display.ScreenRotationPreferenceController;import com.android.settings.display.LcdDensityPreferenceController;import com.android.settings.display.NavbarPreferenceController;import com.android.settings.display.DropdownPreferenceController;
+import com.android.settings.display.StatusbarPreferenceController;
+import com.android.settings.display.NavigationbarPreferenceController;import com.android.settings.display.AppRotationPreferenceController;import com.android.settings.display.SleepPreferenceController;import com.android.settings.display.CameraMirrorPreferenceController;
@@ -116,6 +117,7 @@ public class DisplaySettings extends DashboardFragment {controllers.add(new ScreenRotationPreferenceController(context));controllers.add(new NavbarPreferenceController(context));controllers.add(new DropdownPreferenceController(context));
+        controllers.add(new StatusbarPreferenceController(context));
+        controllers.add(new NavigationbarPreferenceController(context));controllers.add(new AppRotationPreferenceController(context));controllers.add(new SleepPreferenceController(context));controllers.add(new CameraMirrorPreferenceController(context));
diff --git a/packages/apps/Settings/src/com/android/settings/display/NavigationbarPreferenceController.java b/packages/apps/Settings/src/com/android/settings/display/NavigationbarPreferenceController.java
new file mode 100755
index 0000000..3be8e3b
--- /dev/null
+++ b/packages/apps/Settings/src/com/android/settings/display/NavigationbarPreferenceController.java
@@ -0,0 +1,66 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software distributed under the
+ * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the specific language governing
+ * permissions and limitations under the License.
+ */
+package com.android.settings.display;
+
+import android.content.Context;
+import android.support.v7.preference.Preference;
+import android.support.v7.preference.TwoStatePreference;
+import android.content.Intent;
+import android.os.SystemProperties;
+
+import com.android.settings.core.PreferenceControllerMixin;
+import com.android.settings.RebootCountDownDialog;
+import com.android.settingslib.core.AbstractPreferenceController;
+
+public class NavigationbarPreferenceController extends AbstractPreferenceController implements
+        PreferenceControllerMixin, Preference.OnPreferenceChangeListener{
+
+    private TwoStatePreference mPreference;
+    private Context mContext;
+
+    public NavigationbarPreferenceController(Context context) {
+        super(context);
+        mContext = context;
+    }
+
+    @Override
+    public String getPreferenceKey() {
+        return "hide_navbar";
+    }
+    
+    @Override
+    public void updateState(Preference preference) {
+        mPreference = (TwoStatePreference) preference;
+        updatePreference();
+    }
+    
+    @Override
+    public boolean isAvailable() {
+        return true;
+    }
+    
+    @Override
+    public boolean onPreferenceChange(Preference preference, Object newValue) {
+        boolean value = (boolean) newValue;
+        mContext.sendBroadcast(new Intent(value ? Intent.ACTION_SYSTEM_NAVIGATION_BAR_HIDE : Intent.ACTION_SYSTEM_NAVIGATION_BAR_SHOW));
+        SystemProperties.set("persist.sys.hidenavbar", (value ? "1" : "0"));
+        return true;
+    }
+    
+    private void updatePreference() {
+        if (mPreference != null) {
+            mPreference.setChecked(SystemProperties.get("persist.sys.hidenavbar").equals("1"));
+        }
+    }
+}
diff --git a/packages/apps/Settings/src/com/android/settings/display/StatusbarPreferenceController.java b/packages/apps/Settings/src/com/android/settings/display/StatusbarPreferenceController.java
new file mode 100755
index 0000000..74bb5ee
--- /dev/null
+++ b/packages/apps/Settings/src/com/android/settings/display/StatusbarPreferenceController.java
@@ -0,0 +1,66 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software distributed under the
+ * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the specific language governing
+ * permissions and limitations under the License.
+ */
+package com.android.settings.display;
+
+import android.content.Context;
+import android.support.v7.preference.Preference;
+import android.support.v7.preference.TwoStatePreference;
+import android.content.Intent;
+import android.os.SystemProperties;
+
+import com.android.settings.core.PreferenceControllerMixin;
+import com.android.settings.RebootCountDownDialog;
+import com.android.settingslib.core.AbstractPreferenceController;
+
+public class StatusbarPreferenceController extends AbstractPreferenceController implements
+        PreferenceControllerMixin, Preference.OnPreferenceChangeListener{
+
+    private TwoStatePreference mPreference;
+    private Context mContext;
+
+    public StatusbarPreferenceController(Context context) {
+        super(context);
+        mContext = context;
+    }
+
+    @Override
+    public String getPreferenceKey() {
+        return "hide_statusbar";
+    }
+    
+    @Override
+    public void updateState(Preference preference) {
+        mPreference = (TwoStatePreference) preference;
+        updatePreference();
+    }
+    
+    @Override
+    public boolean isAvailable() {
+        return true;
+    }
+    
+    @Override
+    public boolean onPreferenceChange(Preference preference, Object newValue) {
+        boolean value = (boolean) newValue;
+        mContext.sendBroadcast(new Intent(value ? Intent.ACTION_SYSTEM_STATUS_BAR_HIDE : Intent.ACTION_SYSTEM_STATUS_BAR_SHOW));
+        SystemProperties.set("persist.sys.hidestatusbar", (value ? "1" : "0"));
+        return true;
+    }
+    
+    private void updatePreference() {
+        if (mPreference != null) {
+            mPreference.setChecked(SystemProperties.get("persist.sys.hidestatusbar").equals("1"));
+        }
+    }
+}

属性配置：

# 状态栏配置，取值，0：显示，1：隐藏
persist.sys.hidestatusbar=0# 导航栏配置，取值，0：显示，1：隐藏
persist.sys.hidenavbar=0

隐藏状态栏与导航栏

Intent intent = new Intent();
intent.setAction("android.intent.action.SYSTEM_BAR_HIDE");
mContext.sendBroadcast(intent);

显示状态栏与导航栏

Intent intent = new Intent();
intent.setAction("android.intent.action.SYSTEM_BAR_SHOW");
mContext.sendBroadcast(intent);

隐藏状态栏

Intent intent = new Intent();
intent.setAction("android.intent.action.SYSTEM_STATUS_BAR_HIDE");
mContext.sendBroadcast(intent);

显示状态栏

Intent intent = new Intent();
intent.setAction("android.intent.action.SYSTEM_STATUS_BAR_SHOW");
mContext.sendBroadcast(intent);

隐藏导航栏

Intent intent = new Intent();
intent.setAction("android.intent.action.SYSTEM_NAVIGATION_BAR_HIDE");
mContext.sendBroadcast(intent);

显示导航栏

Intent intent = new Intent();
intent.setAction("android.intent.action.SYSTEM_NAVIGATION_BAR_SHOW");
mContext.sendBroadcast(intent);