Android系统应用开发（六）Android framework系统默认设置修改

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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] --><appwidgetlauncher: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>@Overridepublic 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> <shortcutlauncher: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><folderlauncher:screen="2"launcher:x="2"launcher:y="2"launcher:title = "@string/application_name" ><favoritelauncher:className="com.android.deskclock.DeskClock"launcher:packageName="com.android.deskclock"launcher:container="1"launcher:x="0"launcher:y="0" /><favoritelauncher: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">&#

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