删除android系统自带锁屏，导航栏、状态栏、搜索框

删除导航栏

frameworks/base/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java 

line 641 行 注释掉 // addNavigationBar();

删除状态栏

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

line 34

<dimen name="status_bar_height">24dp</dimen>

改为

<dimen name="status_bar_height">0dp</dimen>

删除系统搜索框

packages/apps/Launcher3/res/values/dimens.xml

line 74 

<dimen name="all_apps_search_bar_height">48dp</dimen>

改为

<dimen name="all_apps_search_bar_height">0dp</dimen>

删除谷歌搜索框

packages/apps/Launcher3/src/com/android/launcher3/Launcher.java

 

line 4055 

if (widgetId != -1) {

改为

if (widgetId != -1 && false) {

line 4069  注释掉

//mSearchDropTargetBar.addView(mQsb);

删除系统锁屏

frameworks/base/packages/SettingsProvider/src/com/android/providers/settings/DatabaseHelper.java 

line 2519

 if (SystemProperties.getBoolean("ro.lockscreen.disable.default", false) == true) 

改为
 if (SystemProperties.getBoolean("ro.lockscreen.disable.default", true) == true) {

修改home键

把以下文件（下面全部文件）中的"android.intent.category.HOME"字符串

全部改为"com.vtech.innotab.HOME"

./development/samples/Home/AndroidManifest.xml

./development/apps/SdkSetup/AndroidManifest.xml

./frameworks/base/tools/aapt/Command.cpp

./frameworks/base/api/system-current.txt

./frameworks/base/api/current.txt

./frameworks/base/core/java/android/content/Intent.java

./packages/apps/Provision/AndroidManifest.xml

./packages/apps/Settings/AndroidManifest.xml

./packages/apps/Launcher2/AndroidManifest.xml

./packages/apps/Launcher3/AndroidManifest.xml

./packages/apps/Launcher3/AndroidManifest.xml

./prebuilts/sdk/api/1.xml

./prebuilts/sdk/api/2.xml

./prebuilts/sdk/api/4.xml

./prebuilts/sdk/api/6.xml

./prebuilts/sdk/api/7.xml

./prebuilts/sdk/api/8.xml

./prebuilts/sdk/api/9.xml

./prebuilts/sdk/api/10.xml

./prebuilts/sdk/api/11.xml

./prebuilts/sdk/api/12.xml

./prebuilts/sdk/api/13.xml

./prebuilts/sdk/api/23.txt

./prebuilts/sdk/system-api/23.txt