原文地址:http://blog.csdn.net/tiantian715/

launcher 总结:

1、launcher的布局太居中,要想两边拉伸
<\packages\apps\Launcher2\res\values\dimens.xml>
<dimen name="apps_customize_pageLayoutPaddingLeft">40dp</dimen>
<dimen name="apps_customize_pageLayoutPaddingRight">40dp</dimen>
apps tab栏的宽度(Launcher2 icon 数目、大小)
\packages\apps\Launcher2\res\layout-sw720dp\workspace.xml>
    launcher:cellCountX="10"
    launcher:cellCountY="6"
2、或者不想改数目:
<\packages\apps\Launcher2\src\com\android\launcher2\AppsCustomizeTabHost.java>
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
mTabs.getLayoutParams().width = contentWidth + 108;
3、workspace、AppsCustomize的cell大小:
<\packages\apps\Launcher2\res\values-sw600dp\dimens.xml>
    <dimen name="workspace_cell_width">110dip</dimen>
    <dimen name="workspace_cell_height">110dip</dimen>
    <dimen name="apps_customize_cell_width">110dp</dimen>
    <dimen name="apps_customize_cell_height">110dp</dimen>
4、里面icon的大小:
<\packages\apps\Launcher2\res\values-sw600dp\dimens.xml>
     <dimen name="app_icon_size">80dp</dimen>
5、workspace没有拖动,第二页第一个icon出现在第一页的最右边:
加大workspace的宽度,或间距:
workspace的paddingLeft、paddingRight:
<\packages\apps\Launcher2\res\values-sw600dp-land\dimens.xml>
    <dimen name="workspace_left_padding">50dip</dimen>
    <dimen name="workspace_right_padding">50dip</dimen>
workspace两屏间距:
<dimen name="workspace_page_spacing">100dp</dimen>
修改workspace的字体大小:
如果没有就添加:
<\packages\apps\Launcher2\res\values-sw480dp\styles.xml>
    <style name="WorkspaceIcon.Landscape">
<item name="android:textSize">13sp</item>
</style>

6、加wallpaper:
1.<\packages\apps\Launcher2\res\values-sw600dp\wallpapers.xml>
加wallpaper的名字
2.<\packages\apps\Launcher2\res\drawable-nodpi>
加如wallpaper 
7、gallery的widget默认添加到workspace上:
<\packages\apps\Launcher2\res\xml\default_workspace.xml>
<!-- Middle screen [2] -->
    <appwidget
        launcher:packageName="com.android.gallery3d"
        launcher:className="com.android.gallery3d.gadget.PhotoAppWidgetProvider"
        launcher:screen="2"
        launcher:x="1"
        launcher:y="0"
        launcher:spanX="3"
        launcher:spanY="3" />
<\packages\apps\Gallery2\src\com\android\gallery3d\gadget\PhotoAppWidgetProvider.java>
@Override
    public void onUpdate(Context context,  
            for (int id : appWidgetIds) {
                if(id == 2){ 
                    helper.setWidget(id,WidgetDatabaseHelper.TYPE_SHUFFLE, null);                  
                }
        
    }
8、在桌面上添加网页的快捷方式:
<\packages\apps\Launcher2\res\xml\default_workspace.xml> 
<shortcut

        launcher:title="@string/application_name"
        launcher:icon="@drawable/ic_no_applications"
        launcher:uri="http://www.aaa.com"
        launcher:screen="0"
        launcher:x="0"
        launcher:y="3" />
9、在桌面上默认放文件夹:
<\packages\apps\Launcher2\res\xml\default_workspace.xml>
<folder
          launcher:screen="2"
          launcher:x="2"
          launcher:y="2"
          launcher:title = "@string/application_name" >
         
         
     <favorite
          launcher:className="com.android.deskclock.DeskClock"
          launcher:packageName="com.android.deskclock"
          launcher:container="1"
          launcher:x="0"
          launcher:y="0" />

<favorite
          launcher:className="com.android.calculator2.Calculator"
          launcher:packageName="com.android.calculator2"
          launcher:container="1"
          launcher:x="0"
          launcher:y="0" />
    
     </folder>

10、桌面上添加快捷方式,点击播放视频:
<\packages\apps\Launcher2\res\xml-sw720dp\default_workspace.xml>
<shortcut launcher:title="@string/application_name" 
launcher:icon="@drawable/ic_launcher_application" 
launcher:uri="file:///mnt/sdcard/external_sdcard/1...playermenu;end" 
launcher:screen="2" 
launcher:x="1" 
launcher:y="1" />

11、安装apk,显示隐藏的google play:
1.写google显示的apk:
GooglePlayShow的activity:
ComponentName componentname = new ComponentName("com.android.vending", "com.android.vending.AssetBrowserActivity");
        packagemanager.setComponentEnabledSetting(componentname, 1, 1);
         
        componentname = new ComponentName("com.example.googleplayshow", "com.example.googleplayshow.MainActivity");
        packagemanager.setComponentEnabledSetting(componentname, 2, 1);
2.<\packages\apps\Launcher2\src\com\android\launcher2\LauncherModel.java>
} else if (Intent.ACTION_PACKAGE_ADDED.equals(action)) {
                if (!replacing) {
                         if(packageName.equals("com.example.googleplayshow")){
                              context.startActivity(new Intent().setComponent(new ComponentName("com.example.googleplayshow", "com.example.googleplayshow.MainActivity")).setFlags(Intent.FLAG_ACTIVITY_NEW_TASK));
                         }
                    op = PackageUpdatedTask.OP_ADD;
                } else {
                    op = PackageUpdatedTask.OP_UPDATE;
                }
            }
隐藏google search:
<\packages\apps\Launcher2\src\com\android\launcher2\Launcher.java>
private void setupViews() {
mSearchDropTargetBar = (SearchDropTargetBar) mDragLayer.findViewById(R.id.qsb_bar);
        mSearchDropTargetBar.hideSearchBar(false);
void showWorkspace(boolean animated, Runnable onCompleteRunnable) {
//mSearchDropTargetBar.showSearchBar(wasInSpringLoadedMode);
12、widget中隐藏google play:
<\packages\apps\Launcher2\src\com\android\launcher2\AppsCustomizePagedView.java>
updatePackages里面添加:
if(!widget.provider.getPackageName().equals("com.android.vending") && !widget.provider.getPackageName().equals("com.android.vending.MarketWidgetProvider")){
    mWidgets.add(widget);
}
13、clock的widget下部分显示不全,向上调
<\packages\amlogic\Launcher2\res\values\dimens.xml>
<dimen name="app_widget_preview_padding_top">10dp</dimen>
修改widget的text的size:
<\packages\amlogic\Launcher2\res\layout\apps_customize_widget.xml>
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/widget_name"
android:textSize="20sp" />
14、launcher中隐藏一个app:
需要该app的packageName,例如要隐藏settings:
<\packages\apps\Launcher2\src\com\android\launcher2\LauncherModel.java>
private void loadAllAppsByBatch() { 
apps = packageManager.queryIntentActivities(mainIntent, 0); 
                    ResolveInfo removeApp = null;
                    for(ResolveInfo info:apps){
                        if(info.activityInfo.packageName.equals("com.android.settings")){
                                removeApp = info;
                        }
 
                    }
 
                    if(removeApp != null){
                        apps.remove(removeApp);
                    }
15、launcher中隐藏多个app: 红色为改动部分
<\packages\apps\Launcher2\src\com\android\launcher2\LauncherModel.java>
private void loadAllAppsByBatch() {  
final PackageManager packageManager = mContext.getPackageManager();
            List<ResolveInfo> apps = new ArrayList<ResolveInfo>();
            List<ResolveInfo> allApps = null;
int N = Integer.MAX_VALUE;
int startIndex;
int i=0;
int batchSize = -1;
while (i < N && !mStopped) {
if (i == 0) {
mAllAppsList.clear();
final long qiaTime = DEBUG_LOADERS ? SystemClock.uptimeMillis() : 0;
                    allApps = packageManager.queryIntentActivities(mainIntent, 0);
                    for(ResolveInfo info : allApps){
                        if(info.activityInfo != null 
                                && !info.activityInfo.packageName.equalsIgnoreCase("com.android.email")
                                && !info.activityInfo.packageName.equalsIgnoreCase("com.android.providers.downloads.ui")
                                && !info.activityInfo.packageName.equalsIgnoreCase("com.adobe.flashplayer")){
                            apps.add(info);
                        }
                    }

settings 问题总结:
1.入口,设置分屏显示
frameworks\base\core\res\res\values\bools.xml 下的 preferences_prefer_dual_pane 为true.
<bool name="preferences_prefer_dual_pane">true</bool>
2.top level headers--这里可以去掉左边的headers
<settings.java>
private void updateHeaderList(List<Header> target) {
if (!getPackageManager().hasSystemFeature(PackageManager.FEATURE_BLUETOOTH)) {
   target.remove(header);
}
3.默认字体:
public void readFontSizePreference(ListPreference pref) {
ActivityManagerNative.getDefault().getConfiguration()
系统的Configuration是从ActivityManagerService设置的:
<\frameworks\base\services\java\com\android\server\am\ActivityManagerService.java>
mConfiguration.setToDefaults();
fontScale = Float.parseFloat(SystemProperties.get("ro.fontScale","1"));
4.settings的theme:
<\packages\apps\Settings\AndroidManifest.xml>
<application android:label="@string/settings_label"
            android:icon="@mipmap/ic_launcher_settings"
            android:taskAffinity=""
            android:theme="@android:style/Theme.Holo"
            android:uiOptions="splitActionBarWhenNarrow"
            android:hardwareAccelerated="true">
<\frameworks\base\core\res\res\values\themes.xml>
<style name="Theme.Holo">
字体颜色
<item name="textColorPrimary">@android:color/primary_text_holo_dark</item>
加亮框的颜色:
<item name="activatedBackgroundIndicator">@android:drawable/activated_background_holo_dark</item>
触摸框的颜色:
<item name="listChoiceBackgroundIndicator">@android:drawable/list_selector_holo_dark</item>
左边背景:
<item name="windowBackground">@android:drawable/screen_background_selector_dark</item>
右边的背景:
<item name="detailsElementBackground">@android:drawable/panel_bg_holo_dark</item>
title的背景:
<item name="actionBarStyle">@android:style/Widget.Holo.ActionBar</item>
5.设置--》开发者选项--修改后台进程限制
frameworks/base/services/java/com/android/server$ vi ./am/ActivityManagerService.java
大概839行 把int mProcessLimitOverride = -1;改成4(不得超过4个进程)
标准限制 对应 -1
不允许后台进程 对应 0
不得超过1个进程 对应 1
不得超过2个进程  对应 2
不得超过3个进程 对应 3
6. 默认不要锁屏,设置-安全--屏幕锁定 (无)
overlay/frameworks/base/packages/SettingsProvider/res/values/defaults.xml
<bool name="def_lockscreen_disabled">true</bool>
7. 位置服务--- 默认Google的位置服务为勾选
overlay/frameworks/base/packages/SettingsProvider/res/values/defaults.xml
<string name="def_location_providers_allowed" translatable="false">gps</string>
改成
<string name="def_location_providers_allowed" translatable="false">gps,network</string>

常用修改
一. 修改默认(Settting.apk 中选项默认值一般存在于 frameworks\base\packages\SettingsProvider\res\values\defaults.xml)
1. 默认勾选 未知来源
<bool name="def_install_non_market_apps">false</bool>

2. 默认铃声, 通知, 闹钟 音乐
可以在system.prop 分别配置

ro.config.ringtone=Playa.ogg (默认铃声设置,文件在/system/media/audio/ringtones 把喜欢的铃声放这里,比如123.MP3放入ringtones文件夹中,这里代码改为ro.config.ringtone=123.mp3)
ro.config.notification_sound=regulus.ogg (默认提示音,文件在/system/media/audio/notifications 修改方法同上)
ro.config.alarm_alert=Alarm_Beep_03.ogg (默认闹铃,文件在/system/media/audio/alarms 修改方法同上)

3. 壁纸不跟随滑动
packages/apps/Launcher2/./src/com/Android/launcher2/Workspace.Java  大概 875行
private float wallpaperOffsetForCurrentScroll() 
修改 wallpaperOffsetForCurrentScroll 的返回值。 改成 return  0.5f;

二.隐藏或删除某项
1.去掉设置中Wifi选项
device/amlogic/xxxref/xxxref.mk 文件中
# Device specific system feature description
PRODUCT_COPY_FILES += \
$(LOCAL_PATH)/tablet_core_hardware.xml:system/etc/permissions/tablet_core_hardware.xml \
frameworks/native/data/etc/android.hardware.wifi.xml:system/etc/permissions/android.hardware.wifi.xml \ (删除)

2.去掉设置中蓝牙选项
参考 wifi。
在 tablet_core_hardware.xml  删除 <feature name="android.hardware.bluetooth" />    这一行

3. HDMI 部分
1)去掉HDMI选项  在system.prop中 加入 ro.hdmi.autoswitch=false
2)去掉480p 选项 在prop中设置 ro.hdmi480p.enable=false

4. 去掉 powerwidget 中 某一项
以去掉 gps 为例

在 packages\apps\Settings\res\layout\widget.xml 下, 移除
<ImageView
android:layout_width="1dip"
android:layout_height="match_parent"
android:background="@drawable/appwidget_settings_divider_holo"
android:contentDescription="@null"
/>
<LinearLayout
android:id="@+id/btn_bluetooth"
android:layout_width="0dip"
android:layout_weight="1"
android:layout_height="match_parent"
android:paddingTop="12dp"
android:background="@drawable/appwidget_button_center"
android:clickable="true"
android:focusable="true"
android:orientation="vertical">
<ImageView
android:id="@+id/img_bluetooth"
android:layout_width="match_parent"
android:layout_height="0dip"
android:layout_weight="1"
android:scaleType="center"
android:contentDescription="@null"
/>
<ImageView
android:id="@+id/ind_bluetooth"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:scaleType="fitXY"
android:contentDescription="@null"
/>
</LinearLayout>
然后 com.android.settings.widget.SettingsAppWidgetProvider.java 
注释 views.setOnClickPendingIntent(R.id.btn_gps, getLaunchPendingIntent(context, BUTTON_GPS)); 这一行。

5.  去掉 Setting widget 中 某一项
以去掉 "网络共享与便携式热点" 为例
根据"网络共享与便携式热点" 这个关键词 在 values-zh_rCN 中搜索 到的 key值, 然后在AndroidManifest.xml 搜索这个 key值。 找到对于的Activity 配置
移除 <category android:name="com.android.settings.SHORTCUT" />  这一行。

6. 修改浏览器默认浏览器模式

packages\apps\Browser\res\xml-sw600dp\advanced_preferences.xml
<ListPreference
android:key="user_agent"
android:title="@string/pref_development_uastring"
android:entries="@array/pref_development_ua_choices"
android:entryValues="@array/pref_development_ua_values"
android:defaultValue="3"/>
   修改 android:defaultValue="3" 具体的值参考一下选项
<string-array name="pref_development_ua_choices" translatable="false">
<item>Android</item>
<item>Desktop</item>
<item>iPhone</item>
<item>iPad</item>
<item>Froyo-N1</item>
<item>Honeycomb-Xoom</item>
</string-array>
<!-- Do not tranlsate.  Development option -->
<string-array name="pref_development_ua_values" translatable="false">
<item>0</item>
<item>1</item>
<item>2</item>
<item>3</item>
<item>4</item>
<item>5</item>
7. workspace 预置 文件夹 
范例
folder 放到最前面。launcher:container 的值是folder的数据库中的id。一般从1开始。
<folder
launcher:screen="2"
launcher:x="1"
launcher:y="1"
launcher:title ="@string/application_name" >
<favorite
launcher:className="com.android.settings"
launcher:packageName="com.android.settings.Settings"
launcher:container="2"
launcher:x="0"
launcher:y="0" />
<favorite
launcher:className="com.fb.FileBrower"
launcher:packageName="com.fb.FileBrower.FileBrower"
launcher:container="2"
launcher:x="0"
launcher:y="0" />
</folder>
widget 范例
<appwidget
launcher:packageName="com.android.calendar"
launcher:className="com.android.calendar.widget.CalendarAppWidgetProvider"
launcher:screen="1"
launcher:x="0"
launcher:y="0"
launcher:spanX="2"
launcher:spanY="3" />
快捷方式范例
<favorite
launcher:packageName="com.android.settings"
launcher:className="com.android.settings.Settings"
launcher:screen="2"
launcher:x="1"
launcher:y="3" />

网页快捷方式
<shortcut
launcher:title="@string/custom_google"
launcher:icon="@drawable/favicon_google"
launcher:uri="http://www.google.com/"
launcher:screen="3"
launcher:x="4"
launcher:y="1"/>

8. 系统自带LatinIME 高级设置--按键音量设置   修改默认值

java/res/values/keypress-volumes.xml
<string-array name="keypress_volumes" translatable="false">
<!-- Build.HARDWARE,volume -->
        <item>amlogic,0.3</item>    //加入这行。 把0.3改成自己的默认值。0.3代表30%
<item>herring,0.5</item>
<item>tuna,0.5</item>
<item>stingray,0.4</item>
9.lockscreen坐标数字时钟被遮住
请调整红色的数字:

<\frameworks\base\core\res\res\layout-sw600dp\keyguard_screen_tab_unlock_land.xml>
<!-- left side: status and music -->
<RelativeLayout
android:layout_height="match_parent"
android:layout_weight="0.5"
<!-- right side -->
<RelativeLayout
android:layout_height="match_parent"
android:layout_weight="0.5"
10.在4.1上修改默认字体大小:
比如改成大:
<frameworks\base\packages\SettingsProvider\res\values\defaults.xml>
<fraction name="def_font_scale">115%</fraction>

11.没有蓝牙的平台,去掉窗口小部件-设置快捷方式-拉到桌面显示的“蓝牙”选项
<\packages\apps\Settings\src\com\android\settings\OutputSettingsBroadcastReceiver.java>
public void onReceive(Context context, Intent intent) 
{
// boot completed
if(intent.getAction().equalsIgnoreCase(Intent.ACTION_BOOT_COMPLETED))
{
                     if(!context.getPackageManager().hasSystemFeature(context.getPackageManager().FEATURE_BLUETOOTH)){
                            ComponentName componentname = new ComponentName("com.android.settings", "com.android.settings.Settings$BluetoothSettingsActivity");
                            context.getPackageManager().setComponentEnabledSetting(componentname, 2, 1);
                     }
}
11. 修改 浏览器的默认标签
分别在一下资源文件中添加自定义的标签
packages\apps\Browser\res\values\strings.xml
<string-array name="bookmarks" translatable="false">
<item>Google</item>
<item>http://www.google.com/</item>
<item>Picasa</item>
<item>http://picasaweb.google.com/</item>
<item>Yahoo!</item>
<item>http://www.yahoo.com/</item>
<item>MSN</item>
<item>http://www.msn.com/</item>
<item>Twitter</item>
<item>http://twitter.com/</item>
<item>Facebook</item>
<item>http://www.facebook.com/</item>
<item>Wikipedia</item>
<item>http://www.wikipedia.org/</item>
<item>eBay</item>
<item>http://www.ebay.com/</item>
<item>CNN</item>
<item>http://www.cnn.com/</item>
<item>NY Times</item>
<item>http://www.nytimes.com/</item>
<item>ESPN</item>
<item>http://espn.com/</item>
<item>Amazon</item>
<item>http://www.amazon.com/</item>
<item>Weather Channel</item>
<item>http://www.weather.com/</item>
<item>BBC</item>
<item>http://www.bbc.co.uk/</item>
</string-array>
packages\apps\Browser\res\values\bookmarks_icons.xml ,
注意:这里每个网站对应一个缩略图和一个favicon
<array name="bookmark_preloads">
<item>@raw/favicon_google</item>
<item>@raw/thumb_google</item>
<item>@raw/favicon_picasa</item>
<item>@raw/thumb_picasa</item>
<item>@raw/favicon_yahoo</item>
<item>@raw/thumb_yahoo</item>
<item>@raw/favicon_msn</item>
<item>@raw/thumb_msn</item>
<item>@raw/favicon_twitter</item>
<item>@raw/thumb_twitter</item>
<item>@raw/favicon_facebook</item>
<item>@raw/thumb_facebook</item>
<item>@raw/favicon_wikipedia</item>
<item>@raw/thumb_wikipedia</item>
<item>@raw/favicon_ebay</item>
<item>@raw/thumb_ebay</item>
<item>@raw/favicon_cnn</item>
<item>@raw/thumb_cnn</item>
<item>@raw/favicon_nytimes</item>
<item>@raw/thumb_nytimes</item>
<item>@raw/favicon_espn</item>
<item>@raw/thumb_espn</item>
<item>@raw/favicon_amazon</item>
<item>@raw/thumb_amazon</item>
<item>@raw/favicon_weatherchannel</item>
<item>@raw/thumb_weatherchannel</item>
<item>@raw/favicon_bbc</item>
<item>@raw/thumb_bbc</item>
</array>
对应的图片在 packages\apps\Browser\res\raw

12. 锁屏界面, 解锁组件增加图标
已增加 VideoPlayer 为例,
在frameworks/base/core/res/res/drawable-hdpi  下面
添加一个对应的png图标
下面红色为增加的部分。
frameworks/core/res/res/values-sw600dp-land/arrays.xml 
<item>@drawable/ic_lockscreen_unlock</item>
<item>@drawable/ic_action_assist_generic</item>
<item>@drawable/ic_lockscreen_camera</item>
 -        <item>@null</item>
+        <item>@drawable/ic_lockscreen_videoplayer</item>  
</array>
<array name="lockscreen_target_descriptions_with_camera">
frameworks/base/res/res/values/arrays.xml b/core/res/res/values/arrays.xml
<item>@drawable/ic_lockscreen_unlock</item>
<item>@drawable/ic_action_assist_generic</item>
<item>@drawable/ic_lockscreen_camera</item>
-        <item>@null</item>
+        <item>@drawable/ic_lockscreen_videoplayer</item>
</array>
<array name="lockscreen_target_descriptions_with_camera">
frameworks/base/res/res/values/public.xml b/core/res/res/values/public.xml
index ac0a457..be4257e 100755
--- a/core/res/res/values/public.xml
+++ b/core/res/res/values/public.xml
<java-symbol type="drawable" name="ic_lockscreen_unlock_phantom" />
<java-symbol type="drawable" name="ic_media_route_on_holo_dark" />
<java-symbol type="drawable" name="ic_media_route_disabled_holo_dark" />
  <java-symbol type="drawable" name="ic_lockscreen_videoplayer" />
<java-symbol type="layout" name="action_bar_home" />
<java-symbol type="layout" name="action_bar_title_item" />
<java-symbol type="layout" name="action_menu_item_layout" />
frameworks/base/policy/src/com/android/internal/policy/impl/LockScreen.java 
case com.android.internal.R.drawable.ic_lockscreen_camera:
launchActivity(new Intent(MediaStore.INTENT_ACTION_STILL_IMAGE_CAMERA));
mCallback.pokeWakelock();
break;                    
                case com.android.internal.R.drawable.ic_lockscreen_videoplayer:
                     launchActivity(new Intent().setClassName("com.farcore.videoplayer", "com.farcore.videoplayer.FileList"));
                     mCallback.pokeWakelock();
                     break;
注意: 在 frameworks/base/core/res/ 中执行mm 。然后在frameworks/base/policy 中执行mm。看看能否编译过。不行的话,在 在根目录下 执行make update-api 
13. 休眠策略
修改默认的休眠策略,请参考
frameworks\base\packages\SettingsProvider\res\values\defaults.xml
<integer name="def_wifi_sleep_policy">0</integer>
<!--  0 == Never, 1 == Only when plugged in,2 == Always. -->   
14. Launcher 半透明
4.0, 4.1  下载附件中的patch集合--- translucent.zip
如果是 4.2.2系统 , 还需修改
Launcher/src/com/android/launcher2/Launcher.java
mLauncherView.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN);
mWorkspaceBackgroundDrawable = getResources().getDrawable(R.drawable.workspace_bg);
         mBlackBackgroundDrawable = new ColorDrawable(Color.BLACK); // 修改为 mBlackBackgroundDrawable = new ColorDrawable(0x7f000000);    

packages\amlogic\Launcher2\src\com\android\launcher2\Launcher.java
mStateAnimation.addListener(new AnimatorListenerAdapter() {
boolean animationCancelled = false;
@Override
public void onAnimationStart(Animator animation) {
                    dispatchOnLauncherTransitionEnd(fromView, animated, false); //add
                    dispatchOnLauncherTransitionEnd(toView, animated, false);   //add
                    updateWallpaperVisibility(false);  //true 改成false
// Prepare the position
toView.setTranslationX(0.0f);
toView.setTranslationY(0.0f);
toView.setVisibility(View.VISIBLE);
toView.bringToFront();
}

15. APK 预装时无法找到lib库的问题
(1) 如果log报错是找不到lib库首先可以修改lib的路径
jb4.1\frameworks\base\core\java\android\app\NativeActivity.java
public static final String SYSTEM_LIB_PATH = "/system/lib";
if (libraryFile.exists()) {
path = libraryFile.getPath();
}else{
File systemLibraryFile = new File(SYSTEM_LIB_PATH,System.mapLibraryName(libname));   
if (systemLibraryFile.exists()) {
path = systemLibraryFile.getPath();
}
}    
(2)apk本身会检测检测/data/data/lib路径是否存在资源文件时方法1不适用,用第二种方法:  
在项目上的mk文件 /device/amlogic/g18refg/8ref.mk 中,加上 preinstallation
PRODUCT_PACKAGES += \
lights.amlogic \
FileBrowser \
AppInstaller \
VideoPlayer \
HdmiSwitch \
Update \
fw_env \
preinstallation

将网页底部的附件 Preinstallation.zip拷贝到packages\amlogic下面解压   将需要预装安装的apk拷贝到preinstallation目录下面,编辑里面的preinstall.sh文件内容如下:
#!/system/xbin/busybox sh
echo "do preinstall applications"
# com.mxtech.videoplayer.ad apk包名
if [ ! -e /data/data/com.mxtech.videoplayer.ad/ ]; then
pm install /system/preinstall/com.mxtech.videoplayer.ad.50.apk
fi
if [ ! -e /data/data/org.xbmc.xbmc/ ]; then
pm install /system/preinstall/xbmc-20130414-e2c3799-Frodo-armeabi-v7a.apk
fi

。。。。。。

然后在device\amlogic\common\init\tablet\init.amlogic.rc 中,启动预安装脚本的服务.
MX:
service preinstall /system/bin/preinstall.sh
class main
user root
group root
oneshot
console
disabled     
M3:
service preinstall /system/bin/preinstall.sh
user root
group root
disabled
oneshot
在init.amlogic.rc最后一行加上
start preinstall
16. 去掉 hotspot
把红色的部分删掉
device\amlogic\gXXXX\overlay\frameworks\base\core\res\res\values\config.xml
<string-array translatable="false" name="config_tether_wifi_regexs">
        <item>"wlap0"</item>
        <item>"wl0.1"</item>
        <item>"wlan0"</item>
</string-array>
<integer-array translatable="false" name="config_tether_upstream_types">
        <item>0</item>
        <item>9</item>
</integer-array>
17.桌面上添加快捷方式,点击播放视频:
<\packages\apps\Launcher2\res\xml-sw720dp\default_workspace.xml>
<shortcut
launcher:title="@string/application_name"
launcher:icon="@drawable/ic_launcher_application" launcher:uri="file:///mnt/sdcard/external_sdcard/1...playermenu;end"
launcher:screen="2" launcher:x="1" launcher:y="1" />

添加网页的快捷方式:
<\packages\apps\Launcher2\res\xml-sw720dp\default_workspace.xml> 
<shortcut

        launcher:title="@string/application_name"
        launcher:icon="@drawable/ic_no_applications"
        launcher:uri="http://www.aaa.com"
        launcher:screen="0"
        launcher:x="0"
        launcher:y="3" />

18.去掉camera的全景icon:
4.1:
<\packages\apps\Camera\res\layout-sw600dp-land\mode_picker.xml>
<com.android.camera.ui.RotateImageView android:id="@+id/mode_panorama"
android:contentDescription="@string/accessibility_switch_to_panorama"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:visibility="gone"
android:scaleType="center"
android:background="@drawable/bg_pressed"
android:src="@drawable/ic_switch_pan_holo_light" />

4.2:
<\packages\apps\Camera\src\com\android\camera\CameraActivity.java>
加上红色加亮的地方:
public void init() {
for (int i = 0; i < mDrawables.length; i++) {
if ((i == LIGHTCYCLE_MODULE_INDEX && !LightCycleHelper.hasLightCycleCapture(this))||i == PANORAMA_MODULE_INDEX) {
continue; // not enabled, so don't add to UI
}
drawids[ix++] = DRAW_IDS[i];
}

<\packages\apps\Camera\src\com\android\camera\CameraActivity.java>
public void init() {
int[] drawids = new int[LightCycleHelper.hasLightCycleCapture(this)
? DRAW_IDS.length -1 : DRAW_IDS.length - 2];

19.锁屏左边clock太大显示不全:
<\frameworks\base\core\res\res\layout-sw600dp\keyguard_screen_status_land.xml>
<TextView android:id="@+id/timeDisplayBackground"
android:textSize="@dimen/keyguard_pattern_unlock_clock_font_size"
<TextView android:id="@+id/timeDisplayForeground"
android:textSize="@dimen/keyguard_pattern_unlock_clock_font_size"
//dimens.xml里的keyguard_pattern_unlock_clock_font_size调小
可以把clock调成居中显示,不要靠右,造成右边显示不全
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="right">
//改成center
20. 去掉settings的battery里面的mobile network signal显示
加上红色语句:
<\packages\apps\Settings\src\com\android\settings\fuelgauge\BatteryHistoryChart.java>
if (!com.android.settings.Utils.isWifiOnly(getContext())) {
mHavePhoneSignal = true;
}
        mHavePhoneSignal = false;      
21. 去掉待机的CRT动画
把自己项目overlay中的
frameworks/base/core/res/res/values/config.xml
<bool name="config_animateScreenLights">false</bool> 删掉 就可以了

22. 添加格式化内部sdcard
jb4.1\packages\amlogic\Settings\src\com\android\settings\deviceinfo\StorageVolumePreferenceCategory.java
public StorageVolumePreferenceCategory(Context context, Resources resources, StorageVolume storageVolume, StorageManager storageManager, boolean isPrimary) {
// Cannot format emulated storage
mAllowFormat = mStorageVolume != null && !mStorageVolume.isEmulated()&&mStorageVolume.isRemovable();
// For now we are disabling reformatting secondary external storage
// until some interoperability problems with MTP are fixed
//if (!isPrimary) mAllowFormat = false;
+        if(mStorageVolume != null && mStorageVolume.getPath().equals("/storage/sdcard0")){
+            mAllowFormat = true;
+        }

23. 4.2 LockScreen 任何方向都可以解锁, 修改成只有向右才能解锁
4.2 Lockscreen 对应的java 文件不再是 Lockscreen, 而是KeyguardSelectorView.java
frameworks/base/core/res/res/values/arrays.xml b/core/res/res/values/arrays.xml
<array name="lockscreen_targets_unlock_only">
<item>@*android:drawable/ic_lockscreen_unlock</item>
+       <item>@null</item>
+       <item>@null</item>
+       <item>@null</item>
</array>
<array name="lockscreen_target_descriptions_unlock_only">
<item>@*android:string/description_target_unlock</item>
+       <item>@null</item>
+       <item>@null</item>
+       <item>@null</item>
</array>

24.android 4.2改launcher里面的icon横排的数目:
<\packages\apps\Launcher2\res\values-sw720dp\config.xml>
<integer name="cell_count_x">7</integer>
如果改成7,hotseat里面第8个icon不见了,可以往第8个槽里面放进去,但是重启后,icon又不见了,可以这样修改:
<\packages\apps\Launcher2\src\com\android\launcher2\LauncherModel.java>
                final ItemInfo occupied[][][] =
                        new ItemInfo[Launcher.SCREEN_COUNT + 1][mCellCountX + 2][mCellCountY + 1]; //原来这里是+1
25. 4.2 LockScreen 解锁界面四个方向添加一个setting入口
frameworks\base\core\res\res\values/arrays.xml
<array name="lockscreen_targets_with_camera">
<item>@drawable/ic_lockscreen_unlock</item>
<item>@drawable/ic_action_assist_generic</item>
<item>@drawable/ic_lockscreen_camera</item>
        <item>@drawable/ic_lockscreen_settings</item>
</array>

在 frameworks\base\core\res\res\drawable 增加 ic_lockscreen_settings.xml 文件 并添加 ic_lockscreen_settings_normal.phg ic_lockscreen_settings_activated.png 资源文件
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item
android:state_enabled="true"
android:state_active="false"
android:state_focused="false"
android:drawable="@drawable/ic_lockscreen_settings_normal" />
<item
android:state_enabled="true"
android:state_active="true"
android:state_focused="false"
android:drawable="@drawable/ic_lockscreen_settings_activated" />
<item
android:state_enabled="true"
android:state_active="false"
android:state_focused="true"
android:drawable="@drawable/ic_lockscreen_settings_activated" />
</selector>

frameworks\base\policy\src\com\android\internal\policy\impl\LockScreen.java
public void onTrigger(View v, int target) {
final int resId = mGlowPadView.getResourceIdForTarget(target);
switch (resId) {
case com.android.internal.R.drawable.ic_lockscreen_settings: //启动setting 应用
launchActivity(new Intent().setComponent(new ComponentName("com.android.settings","com.android.settings.Settings")));   
mCallback.pokeWakelock();
break;

26. 4.2 上隐藏 Wifi Display 
去掉项目overlay/frameworks/base/core/res/res/config.xml 中的config_enableWifiDisplay 
27. 默认音量修改
frameworks/base/media/java/android/media/AudioService.java
private final int[] MAX_STREAM_VOLUME = new int[] {
5,  // STREAM_VOICE_CALL
7,  // STREAM_SYSTEM
7,  // STREAM_RING
15, // STREAM_MUSIC
7,  // STREAM_ALARM
7,  // STREAM_NOTIFICATION
15, // STREAM_BLUETOOTH_SCO
7,  // STREAM_SYSTEM_ENFORCED
15, // STREAM_DTMF
15  // STREAM_TTS
};
frameworks/base/media/java/android/media/AudioManager.java
/**  @hide Default volume index values for audio streams */
public static final int[] DEFAULT_STREAM_VOLUME = new int[] {
4,  // STREAM_VOICE_CALL
7,  // STREAM_SYSTEM
5,  // STREAM_RING
11, // STREAM_MUSIC
6,  // STREAM_ALARM
5,  // STREAM_NOTIFICATION
7,  // STREAM_BLUETOOTH_SCO
7,  // STREAM_SYSTEM_ENFORCED
11, // STREAM_DTMF
11  // STREAM_TTS
};
28.widget中隐藏google play:
<\packages\apps\Launcher2\src\com\android\launcher2\AppsCustomizePagedView.java>
updatePackages里面添加:
if(!widget.provider.getPackageName().equals("com.android.vending") && !widget.provider.getPackageName().equals("com.android.vending.MarketWidgetProvider")){
mWidgets.add(widget);
}
29.去掉设置-->显示-->亮度里的“自动调整亮度”选项
<\packages\apps\Settings\res\layout\preference_dialog_brightness.xml>
<CheckBox android:id="@+id/automatic_mode"
加上
android:visibility="invisible"
30.设置-位置信息访问权限默认关闭
<\frameworks\base\packages\SettingsProvider\res\values\defaults.xml>
<string name="def_location_providers_allowed" translatable="false"></string>
这里不要填写gps或者network,清空
31.设置-安全-验证应用默认不勾允
<\frameworks\base\packages\SettingsProvider\res\values\defaults.xml>
<bool name="def_package_verifier_enable">false</bool>
32.设置-声音-触摸提示音与锁屏提示音默认不勾允状态
<\frameworks\base\packages\SettingsProvider\res\values\defaults.xml>
<integer name="def_lockscreen_sounds_enabled">0</integer>
<bool name="def_sound_effects_enabled">false</bool>
33.设置-以太网菜单请移动“更多”菜单下
请用附件ethernet.patch,开关是ro.ethernet.more,设置为true,ethernet移到more里面
在settings的git下打这个patch
34.窗口小部件“指针时钟”显示不全
把clock的widget向上调,下面的值改小:
<\packages\amlogic\Launcher2\res\values\dimens.xml>
<dimen name="app_widget_preview_padding_top">10dp</dimen>
35.去掉settings的more里面的网络共享与便携式热点
ro.tether.denied=true
36.平台主界面底部工具栏上的图标全部居中显示,从左至右的图标依次为:vol-、back、home、窗口切换、vol+
1.在prop里面将ro.statusbar.volume设置为true
2.<\frameworks\base\packages\SystemUI\res\layout-sw600dp\navigation_bar.xml>
<com.android.systemui.statusbar.policy.KeyButtonView android:id="@+id/sub"
……
/>
这段放到
<com.android.systemui.statusbar.policy.KeyButtonView android:id="@+id/back"
……
/>
这段之前
<com.android.systemui.statusbar.policy.KeyButtonView android:id="@+id/add"
……
/>
这段放到
<com.android.systemui.statusbar.policy.KeyButtonView
android:id="@+id/recent_apps"
……
/>
这段之后
注意这个文件有两处需要调换上面的
37.主界面模拟时钟改成数字时钟
default_workspace.xml里面加上:
<appwidget
launcher:packageName="com.android.deskclock"
launcher:className="com.android.alarmclock.DigitalAppWidgetProvider"
38、settings中的developer options的开关打开,debug关掉:
<\frameworks\base\packages\SettingsProvider\src\com\android\providers\settings\DatabaseHelper.java>
private void loadSecureSettings(SQLiteDatabase db) {
       loadSetting(stmt, Settings.Secure.ADB_ENABLED, 0);
       loadSetting(stmt, Settings.Secure.DEVELOPMENT_SETTINGS_ENABLED, 1);
39、改桌面icon行、列数:
<\packages\apps\Launcher2\res\layout-sw***dp\workspace.xml>
launcher:cellCountX="10"
launcher:cellCountY="6"
40、more里面morebile data项默认不选:
1.<\frameworks\base\packages\SettingsProvider\src\com\android\providers\settings\DatabaseHelper.java>
private void loadSecureSettings(SQLiteDatabase db) {
SQLiteStatement stmt = null;
try {
stmt = db.compileStatement("INSERT OR IGNORE INTO secure(name,value)"
+ " VALUES(?,?);");
添加:
loadIntegerSetting(stmt, Settings.Secure.MOBILE_DATA,
R.integer.def_mobile_data);
2.<\frameworks\base\packages\SettingsProvider\res\values\defaults.xml>
<integer name="def_mobile_data">0</integer>
41.secure的unknown的设置默认打开:
<\frameworks\base\packages\SettingsProvider\res\values\defaults.xml>
<bool name="def_install_non_market_apps">true</bool>
42、修改app list的背景:
<\packages\apps\Launcher2\res\layout\apps_customize_pane.xml>
<com.android.launcher2.AppsCustomizeTabHost
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:launcher="http://schemas.android.com/apk/res/c...droid.launcher"
    android:background="@drawable/wallpaper_03">
43、bluetooth tethering的checkbox去掉:
overlay里面的
<\frameworks\base\core\res\res\values\config.xml>

<string-array translatable="false" name="config_tether_bluetooth_regexs">
        <item>"bt-pan"</item>
    </string-array> 

去掉<item>"bt-pan"</item>
44. Google play 不是内置, 而是安装,导致出问题的解决办法
frameworks/baseservices/java/com/android/server/pm/PackageManagerService.java
@@ -4594,6 +4594,9 @@ public class PackageManagerService extends IPackageManager.Stub {
}
}
}
+                   if (pkg.packageName.equals("com.android.vending")){
+                       allowed = true;
+                   }
if (!allowed && (bp.protectionLevel
& PermissionInfo.PROTECTION_FLAG_DEVELOPMENT) != 0) {
// For development permissions, a development permission
45.以太网设置问题
以太网在settings.db中的条目是"eth_on", 默认值由系统属性 ro.ethernet.default_on 决定,
ro.ethernet.default_on=false 默认关闭
ro.ethernet.default_on=true默认打开
不定义该属性默认关闭

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