最近一直在看Android 浏览器的代码。现在主要在看MMI方面的，还有framework里的，还有Gears（现在支持的网站还不是太多，但确实是一个不错的应用），webkit暂时还没去看了。有时间将心得写下来。不知道有同行吗？可以一起交流交流。
MMI的代码主要在：packages/apps/Browser/
pjq@gentoo-pjq /var/www/localhost/htdocs/android_src $ ls packages/apps/Browser/ -lR packages/apps/Browser/: total 40 -rw-r--r-- 1 root root 11135 2009-06-20 05:23 AndroidManifest.xml -rw-r--r-- 1 root root 372 2009-06-20 05:23 Android.mk drwxr-xr-x 4 root root 4096 2009-06-20 05:23 assets -rw-r--r-- 1 root root 0 2009-06-20 05:23 MODULE_LICENSE_APACHE2 -rw-r--r-- 1 root root 10695 2009-06-20 05:23 NOTICE drwxr-xr-x 22 root root 4096 2009-06-20 05:23 res drwxr-xr-x 3 root root 4096 2009-06-20 05:23 src packages/apps/Browser/assets: total 8 drwxr-xr-x 2 root root 4096 2009-06-20 05:23 html drwxr-xr-x 3 root root 4096 2009-06-20 05:23 plugins packages/apps/Browser/assets/html: total 4 -rw-r--r-- 1 root root 513 2009-06-20 05:23 flashtest.html packages/apps/Browser/assets/plugins: total 1188 drwxr-xr-x 2 root root 4096 2009-06-20 05:23 gears-0.5.17.0 -rw-r--r-- 1 root root 1204872 2009-06-20 05:23 gears.so packages/apps/Browser/assets/plugins/gears-0.5.17.0: total 4 -rw-r--r-- 1 root root 58 2009-06-20 05:23 dummy packages/apps/Browser/res: total 80 drwxr-xr-x 2 root root 4096 2009-06-20 05:23 anim drwxr-xr-x 2 root root 4096 2009-06-20 05:23 drawable drwxr-xr-x 2 root root 4096 2009-06-20 05:23 layout drwxr-xr-x 2 root root 4096 2009-06-20 05:23 layout-land drwxr-xr-x 2 root root 4096 2009-06-20 05:23 menu drwxr-xr-x 2 root root 4096 2009-06-20 05:23 values drwxr-xr-x 2 root root 4096 2009-06-20 05:23 values-cs drwxr-xr-x 2 root root 4096 2009-06-20 05:23 values-de drwxr-xr-x 2 root root 4096 2009-06-20 05:23 values-es drwxr-xr-x 2 root root 4096 2009-06-20 05:23 values-fr drwxr-xr-x 2 root root 4096 2009-06-20 05:23 values-it drwxr-xr-x 2 root root 4096 2009-06-20 05:23 values-ja drwxr-xr-x 2 root root 4096 2009-06-20 05:23 values-ko drwxr-xr-x 2 root root 4096 2009-06-20 05:23 values-nb drwxr-xr-x 2 root root 4096 2009-06-20 05:23 values-nl drwxr-xr-x 2 root root 4096 2009-06-20 05:23 values-pl drwxr-xr-x 2 root root 4096 2009-06-20 05:23 values-ru drwxr-xr-x 2 root root 4096 2009-06-20 05:23 values-zh-rCN drwxr-xr-x 2 root root 4096 2009-06-20 05:23 values-zh-rTW drwxr-xr-x 2 root root 4096 2009-06-20 05:23 xml packages/apps/Browser/res/anim: total 8 -rw-r--r-- 1 root root 1031 2009-06-20 05:23 find_dialog_enter.xml -rw-r--r-- 1 root root 1031 2009-06-20 05:23 find_dialog_exit.xml packages/apps/Browser/res/drawable: total 200 -rw-r--r-- 1 root root 616 2009-06-20 05:23 app_web_browser_sm.png -rw-r--r-- 1 root root 968 2009-06-20 05:23 browser_bookmark_tab.xml -rw-r--r-- 1 root root 962 2009-06-20 05:23 browser_history_tab.xml -rw-r--r-- 1 root root 962 2009-06-20 05:23 browser_visited_tab.xml -rwxr-xr-x 1 root root 2921 2009-06-20 05:23 dialog_divider_horizontal_light.9.png -rwxr-xr-x 1 root root 186 2009-06-20 05:23 fav_icn_background.png -rw-r--r-- 1 root root 1399 2009-06-20 05:23 gears_button_default.9.png -rw-r--r-- 1 root root 1543 2009-06-20 05:23 gears_button_pressed.9.png -rw-r--r-- 1 root root 1085 2009-06-20 05:23 gears_button_selected.9.png -rwxr-xr-x 1 root root 1245 2009-06-20 05:23 gears_button.xml -rw-r--r-- 1 root root 2421 2009-06-20 05:23 gears_icon_32x32.png -rw-r--r-- 1 root root 4735 2009-06-20 05:23 gears_icon_48x48.png -rw-r--r-- 1 root root 1297 2009-06-20 05:23 gears_local_data.png -rw-r--r-- 1 root root 1640 2009-06-20 05:23 gears_location_data.png -rw-r--r-- 1 root root 3802 2009-06-20 05:23 gears.png -rw-r--r-- 1 root root 814 2009-06-20 05:23 ic_btn_close_panel.png -rw-r--r-- 1 root root 592 2009-06-20 05:23 ic_btn_find_next.png -rw-r--r-- 1 root root 615 2009-06-20 05:23 ic_btn_find_prev.png -rw-r--r-- 1 root root 3805 2009-06-20 05:23 ic_dialog_bookmark.png -rwxr-xr-x 1 root root 4255 2009-06-20 05:23 ic_dialog_browser_certificate_partially_secure.png -rwxr-xr-x 1 root root 4291 2009-06-20 05:23 ic_dialog_browser_certificate_secure.png -rwxr-xr-x 1 root root 3556 2009-06-20 05:23 ic_dialog_browser_security_bad.png -rwxr-xr-x 1 root root 3415 2009-06-20 05:23 ic_dialog_browser_security_good.png -rwxr-xr-x 1 root root 1187 2009-06-20 05:23 ic_dialog_menu_generic.png -rwxr-xr-x 1 root root 3610 2009-06-20 05:23 ic_launcher_browser.png -rw-r--r-- 1 root root 2738 2009-06-20 05:23 ic_launcher_drm_file.png -rw-r--r-- 1 root root 2899 2009-06-20 05:23 ic_launcher_shortcut_browser_bookmark.png -rw-r--r-- 1 root root 1080 2009-06-20 05:23 ic_menu_bookmark.png -rw-r--r-- 1 root root 1244 2009-06-20 05:23 ic_menu_windows.png -rw-r--r-- 1 root root 3010 2009-06-20 05:23 ic_new_window.png -rwxr-xr-x 1 root root 806 2009-06-20 05:23 ic_search_category_bookmark.png -rw-r--r-- 1 root root 2395 2009-06-20 05:23 ic_search_category_browser.png -rwxr-xr-x 1 root root 900 2009-06-20 05:23 ic_search_category_history.png -rwxr-xr-x 1 root root 819 2009-06-20 05:23 ic_search_category_suggest.png -rw-r--r-- 1 root root 4125 2009-06-20 05:23 ic_tab_browser_bookmark_selected.png -rw-r--r-- 1 root root 4207 2009-06-20 05:23 ic_tab_browser_bookmark_unselected.png -rw-r--r-- 1 root root 2315 2009-06-20 05:23 ic_tab_browser_history_selected.png -rw-r--r-- 1 root root 2528 2009-06-20 05:23 ic_tab_browser_history_unselected.png -rw-r--r-- 1 root root 4362 2009-06-20 05:23 ic_tab_browser_visited_selected.png -rw-r--r-- 1 root root 4416 2009-06-20 05:23 ic_tab_browser_visited_unselected.png -rw-r--r-- 1 root root 1224 2009-06-20 05:23 page_indicator.png -rw-r--r-- 1 root root 188 2009-06-20 05:23 page_indicator_unselected2.png -rw-r--r-- 1 root root 3216 2009-06-20 05:23 ssl_icon.png packages/apps/Browser/res/layout: total 112 -rw-r--r-- 1 root root 2484 2009-06-20 05:23 add_new_bookmark.xml -rw-r--r-- 1 root root 3656 2009-06-20 05:23 browser_add_bookmark.xml -rw-r--r-- 1 root root 1084 2009-06-20 05:23 browser_bookmarks_page.xml -rw-r--r-- 1 root root 3340 2009-06-20 05:23 browser_download_item.xml -rw-r--r-- 1 root root 904 2009-06-20 05:23 browser_downloads_page.xml -rw-r--r-- 1 root root 2867 2009-06-20 05:23 browser_find.xml -rw-r--r-- 1 root root 2092 2009-06-20 05:23 browser_subwindow.xml -rw-r--r-- 1 root root 1005 2009-06-20 05:23 empty_history.xml -rw-r--r-- 1 root root 3510 2009-06-20 05:23 gears_dialog_permission.xml -rw-r--r-- 1 root root 3928 2009-06-20 05:23 gears_dialog_settings_row.xml -rw-r--r-- 1 root root 1806 2009-06-20 05:23 gears_dialog_settings.xml -rw-r--r-- 1 root root 5215 2009-06-20 05:23 gears_dialog.xml -rw-r--r-- 1 root root 3303 2009-06-20 05:23 gears_settings_row.xml -rw-r--r-- 1 root root 1585 2009-06-20 05:23 gears_settings.xml -rw-r--r-- 1 root root 1056 2009-06-20 05:23 history_header.xml -rw-r--r-- 1 root root 2681 2009-06-20 05:23 history_item.xml -rw-r--r-- 1 root root 2598 2009-06-20 05:23 http_authentication.xml -rw-r--r-- 1 root root 1004 2009-06-20 05:23 no_downloads.xml -rw-r--r-- 1 root root 2767 2009-06-20 05:23 page_info.xml -rw-r--r-- 1 root root 11588 2009-06-20 05:23 ssl_certificate.xml -rw-r--r-- 1 root root 1723 2009-06-20 05:23 ssl_success.xml -rw-r--r-- 1 root root 1873 2009-06-20 05:23 ssl_warnings.xml -rw-r--r-- 1 root root 1563 2009-06-20 05:23 ssl_warning.xml -rw-r--r-- 1 root root 2035 2009-06-20 05:23 tabitem.xml -rw-r--r-- 1 root root 1498 2009-06-20 05:23 tabs.xml packages/apps/Browser/res/layout-land: total 20 -rw-r--r-- 1 root root 2911 2009-06-20 05:23 http_authentication.xml -rw-r--r-- 1 root root 2635 2009-06-20 05:23 page_info.xml -rw-r--r-- 1 root root 10824 2009-06-20 05:23 ssl_certificate.xml packages/apps/Browser/res/menu: total 48 -rw-r--r-- 1 root root 1659 2009-06-20 05:23 bookmarkscontext.xml -rw-r--r-- 1 root root 899 2009-06-20 05:23 bookmarks.xml -rw-r--r-- 1 root root 2774 2009-06-20 05:23 browsercontext.xml -rw-r--r-- 1 root root 5254 2009-06-20 05:23 browser.xml -rw-r--r-- 1 root root 850 2009-06-20 05:23 downloadhistorycontextfailed.xml -rw-r--r-- 1 root root 951 2009-06-20 05:23 downloadhistorycontextfinished.xml -rw-r--r-- 1 root root 852 2009-06-20 05:23 downloadhistorycontextrunning.xml -rw-r--r-- 1 root root 1106 2009-06-20 05:23 downloadhistory.xml -rw-r--r-- 1 root root 1404 2009-06-20 05:23 historycontext.xml -rw-r--r-- 1 root root 916 2009-06-20 05:23 history.xml -rw-r--r-- 1 root root 1153 2009-06-20 05:23 tabscontext.xml packages/apps/Browser/res/values: total 56 -rw-r--r-- 1 root root 1535 2009-06-20 05:23 colors.xml -rw-r--r-- 1 root root 42028 2009-06-20 05:23 strings.xml -rw-r--r-- 1 root root 1992 2009-06-20 05:23 styles.xml -rw-r--r-- 1 root root 1223 2009-06-20 05:23 themes.xml packages/apps/Browser/res/values-cs: total 24 -rw-r--r-- 1 root root 22875 2009-06-20 05:23 strings.xml packages/apps/Browser/res/values-de: total 24 -rw-r--r-- 1 root root 22911 2009-06-20 05:23 strings.xml packages/apps/Browser/res/values-es: total 24 -rw-r--r-- 1 root root 23070 2009-06-20 05:23 strings.xml packages/apps/Browser/res/values-fr: total 24 -rw-r--r-- 1 root root 23315 2009-06-20 05:23 strings.xml packages/apps/Browser/res/values-it: total 24 -rw-r--r-- 1 root root 22487 2009-06-20 05:23 strings.xml packages/apps/Browser/res/values-ja: total 24 -rw-r--r-- 1 root root 24252 2009-06-20 05:23 strings.xml packages/apps/Browser/res/values-ko: total 24 -rw-r--r-- 1 root root 23102 2009-06-20 05:23 strings.xml packages/apps/Browser/res/values-nb: total 24 -rw-r--r-- 1 root root 21506 2009-06-20 05:23 strings.xml packages/apps/Browser/res/values-nl: total 24 -rw-r--r-- 1 root root 22562 2009-06-20 05:23 strings.xml packages/apps/Browser/res/values-pl: total 24 -rw-r--r-- 1 root root 22926 2009-06-20 05:23 strings.xml packages/apps/Browser/res/values-ru: total 28 -rw-r--r-- 1 root root 28399 2009-06-20 05:23 strings.xml packages/apps/Browser/res/values-zh-rCN: total 24 -rw-r--r-- 1 root root 21071 2009-06-20 05:23 strings.xml packages/apps/Browser/res/values-zh-rTW: total 24 -rw-r--r-- 1 root root 20727 2009-06-20 05:23 strings.xml packages/apps/Browser/res/xml: total 20 -rw-r--r-- 1 root root 8291 2009-06-20 05:23 browser_preferences.xml -rw-r--r-- 1 root root 2558 2009-06-20 05:23 debug_preferences.xml -rw-r--r-- 1 root root 1446 2009-06-20 05:23 searchable.xml packages/apps/Browser/src: total 4 drwxr-xr-x 3 root root 4096 2009-06-20 05:23 com packages/apps/Browser/src/com: total 4 drwxr-xr-x 3 root root 4096 2009-06-20 05:23 android packages/apps/Browser/src/com/android: total 4 drwxr-xr-x 2 root root 4096 2009-06-20 05:23 browser packages/apps/Browser/src/com/android/browser: total 540 -rw-r--r-- 1 root root 9312 2009-06-20 05:23 AddBookmarkPage.java -rw-r--r-- 1 root root 2207 2009-06-20 05:23 AddNewBookmark.java -rw-r--r-- 1 root root 3318 2009-06-20 05:23 BookmarkItem.java -rw-r--r-- 1 root root 190922 2009-06-20 05:23 BrowserActivity.java -rw-r--r-- 1 root root 20379 2009-06-20 05:23 BrowserBookmarksAdapter.java -rw-r--r-- 1 root root 16045 2009-06-20 05:23 BrowserBookmarksPage.java -rw-r--r-- 1 root root 9056 2009-06-20 05:23 BrowserDownloadAdapter.java -rw-r--r-- 1 root root 18026 2009-06-20 05:23 BrowserDownloadPage.java -rw-r--r-- 1 root root 17139 2009-06-20 05:23 BrowserHistoryPage.java -rw-r--r-- 1 root root 2212 2009-06-20 05:23 BrowserHomepagePreference.java -rw-r--r-- 1 root root 1834 2009-06-20 05:23 Browser.java -rw-r--r-- 1 root root 2592 2009-06-20 05:23 BrowserPluginList.java -rw-r--r-- 1 root root 5472 2009-06-20 05:23 BrowserPreferencesPage.java -rw-r--r-- 1 root root 26851 2009-06-20 05:23 BrowserProvider.java -rw-r--r-- 1 root root 2427 2009-06-20 05:23 BrowserSearchpagePreference.java -rw-r--r-- 1 root root 16466 2009-06-20 05:23 BrowserSettings.java -rw-r--r-- 1 root root 2207 2009-06-20 05:23 BrowserYesNoPreference.java -rw-r--r-- 1 root root 4744 2009-06-20 05:23 CombinedBookmarkHistoryActivity.java -rw-r--r-- 1 root root 2511 2009-06-20 05:23 Dots.java -rw-r--r-- 1 root root 3690 2009-06-20 05:23 FakeWebView.java -rw-r--r-- 1 root root 4940 2009-06-20 05:23 FetchUrlMimeType.java -rw-r--r-- 1 root root 7465 2009-06-20 05:23 FindDialog.java -rw-r--r-- 1 root root 12950 2009-06-20 05:23 GearsBaseDialog.java -rw-r--r-- 1 root root 8616 2009-06-20 05:23 GearsNativeDialog.java -rw-r--r-- 1 root root 4358 2009-06-20 05:23 GearsPermissionsDialog.java -rw-r--r-- 1 root root 5260 2009-06-20 05:23 GearsPermissions.java -rw-r--r-- 1 root root 15877 2009-06-20 05:23 GearsSettingsDialog.java -rw-r--r-- 1 root root 5142 2009-06-20 05:23 HistoryItem.java -rw-r--r-- 1 root root 8128 2009-06-20 05:23 ImageAdapter.java -rw-r--r-- 1 root root 7643 2009-06-20 05:23 ImageGrid.java -rw-r--r-- 1 root root 3924 2009-06-20 05:23 KeyTracker.java -rw-r--r-- 1 root root 6520 2009-06-20 05:23 MostVisitedActivity.java -rw-r--r-- 1 root root 35937 2009-06-20 05:23 TabControl.java
Framework的在：frameworks/base/core/java/android/webkit/
pjq@gentoo-pjq /var/www/localhost/htdocs/android_src $ ls frameworks/base/core/java/android/webkit/ -Rl frameworks/base/core/java/android/webkit/: total 836 -rw-r--r-- 1 root root 28906 2009-06-20 05:22 BrowserFrame.java -rw-r--r-- 1 root root 3806 2009-06-20 05:22 ByteArrayBuilder.java -rw-r--r-- 1 root root 2169 2009-06-20 05:22 CacheLoader.java -rw-r--r-- 1 root root 26745 2009-06-20 05:22 CacheManager.java -rw-r--r-- 1 root root 39919 2009-06-20 05:22 CallbackProxy.java -rw-r--r-- 1 root root 4349 2009-06-20 05:22 ContentLoader.java -rw-r--r-- 1 root root 35564 2009-06-20 05:22 CookieManager.java -rw-r--r-- 1 root root 6611 2009-06-20 05:22 CookieSyncManager.java -rw-r--r-- 1 root root 2559 2009-06-20 05:22 DataLoader.java -rw-r--r-- 1 root root 3882 2009-06-20 05:22 DateSorter.java -rw-r--r-- 1 root root 1300 2009-06-20 05:22 DownloadListener.java -rw-r--r-- 1 root root 4943 2009-06-20 05:22 FileLoader.java -rw-r--r-- 1 root root 13886 2009-06-20 05:22 FrameLoader.java drwxr-xr-x 2 root root 4096 2009-06-20 05:22 gears -rw-r--r-- 1 root root 4722 2009-06-20 05:22 HttpAuthHandler.java -rw-r--r-- 1 root root 6326 2009-06-20 05:22 HttpDateTime.java -rw-r--r-- 1 root root 1578 2009-06-20 05:22 JsPromptResult.java -rw-r--r-- 1 root root 2289 2009-06-20 05:22 JsResult.java -rw-r--r-- 1 root root 6142 2009-06-20 05:22 JWebCoreJavaBridge.java -rw-r--r-- 1 root root 54751 2009-06-20 05:22 LoadListener.java -rw-r--r-- 1 root root 26861 2009-06-20 05:22 MimeTypeMap.java -rw-r--r-- 1 root root 10207 2009-06-20 05:22 Network.java -rw-r--r-- 1 root root 224 2009-06-20 05:22 package.html -rw-r--r-- 1 root root 1475 2009-06-20 05:22 PerfChecker.java -rw-r--r-- 1 root root 3831 2009-06-20 05:22 PluginContentLoader.java -rw-r--r-- 1 root root 3384 2009-06-20 05:22 PluginData.java -rw-r--r-- 1 root root 3430 2009-06-20 05:22 Plugin.java -rw-r--r-- 1 root root 2236 2009-06-20 05:22 PluginList.java -rw-r--r-- 1 root root 6930 2009-06-20 05:22 SslErrorHandler.java -rw-r--r-- 1 root root 6897 2009-06-20 05:22 StreamLoader.java -rw-r--r-- 1 root root 23870 2009-06-20 05:22 TextDialog.java -rw-r--r-- 1 root root 1766 2009-06-20 05:22 UrlInterceptHandler.java -rw-r--r-- 1 root root 4275 2009-06-20 05:22 UrlInterceptRegistry.java -rw-r--r-- 1 root root 12297 2009-06-20 05:22 URLUtil.java -rw-r--r-- 1 root root 6434 2009-06-20 05:22 WebBackForwardList.java -rw-r--r-- 1 root root 7331 2009-06-20 05:22 WebChromeClient.java -rw-r--r-- 1 root root 5570 2009-06-20 05:22 WebHistoryItem.java -rw-r--r-- 1 root root 8927 2009-06-20 05:22 WebIconDatabase.java -rw-r--r-- 1 root root 36389 2009-06-20 05:22 WebSettings.java -rw-r--r-- 1 root root 5150 2009-06-20 05:22 WebSyncManager.java -rw-r--r-- 1 root root 8222 2009-06-20 05:22 WebViewClient.java -rw-r--r-- 1 root root 66050 2009-06-20 05:22 WebViewCore.java -rw-r--r-- 1 root root 35258 2009-06-20 05:22 WebViewDatabase.java -rw-r--r-- 1 root root 211118 2009-06-20 05:22 WebView.java frameworks/base/core/java/android/webkit/gears: total 128 -rw-r--r-- 1 root root 5935 2009-06-20 05:22 AndroidGpsLocationProvider.java -rw-r--r-- 1 root root 9004 2009-06-20 05:22 AndroidRadioDataProvider.java -rw-r--r-- 1 root root 5029 2009-06-20 05:22 AndroidWifiDataProvider.java -rw-r--r-- 1 root root 42345 2009-06-20 05:22 ApacheHttpRequestAndroid.java -rw-r--r-- 1 root root 4522 2009-06-20 05:22 DesktopAndroid.java -rw-r--r-- 1 root root 4876 2009-06-20 05:22 NativeDialog.java -rw-r--r-- 1 root root 22 2009-06-20 05:22 package.html -rw-r--r-- 1 root root 2960 2009-06-20 05:22 PluginSettings.java -rw-r--r-- 1 root root 14685 2009-06-20 05:22 UrlInterceptHandlerGears.java -rw-r--r-- 1 root root 5217 2009-06-20 05:22 VersionExtractor.java -rw-r--r-- 1 root root 7583 2009-06-20 05:22 ZipInflater.java
其中文件Android.mk，中定义了编译规则，简单说应该就是一个简化版的Makefile了。其中定义了编译时的模块名称，所以如果配置好了编译环境，可以用mm Browser来编译Browser.
BrowserActivity.java是程序主入口了。
Android Browser Introduction 1