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Chromium内核浏览器编译记(一)踩坑实录
Chromium内核浏览器编译记(二)UI定制
0.写在前面
最近因为业务需求,需要编译最新版本的Chromium内核,目前最新的版本是116.0.5845.59,编译的过程中发现有一些代码逻辑修改的地方都变了,所以在此记录下,分享给大家。
定制需求是这样的:
-
修改包名、版本号、应用图标、应用名称
-
不显示应用第一次启动时的设置引导页
-
应用全屏显示,移除首页的所有菜单栏
-
增加点击两次退出应用的功能
-
默认不加载新标签页
1.修改包名
源码路径:/chromium/src/chrome/android/chrome_public_apk_tmpl.gni
将下面两个属性的值替换成你要修改的包名就可以了:
chrome_public_manifest_package = "org.chromium.chrome"chrome_public_test_manifest_package = "org.chromium.chrome.tests"
2.修改版本号
源码路径:/chromium/src/build/config/android/config.gni
将下面四个属性的值替换成你要修改的版本号就可以了:
android_default_version_code = "10000"
android_default_version_name = "1.00.00"android_override_version_code = "10000"
android_override_version_name = "1.00.00"
3.修改应用图标
源码路径:/chromium/src/chrome/android/java/res_chromium_base
在这个目录下,有几个mipmap文件夹,把里面的图标替换下就可以,和AS项目是一样的。
4.修改应用名称
源码路径:/chromium/src/chrome/android/java/res_chromium_base/values/channel_constants.xml
<resources xmlns:android="http://schemas.android.com/apk/res/android"><string name="app_name" translatable="false">应用名称</string>
</resources>
5.屏蔽启动引导页
源码路径:/chromium/src/chrome/android/java/src/org/chromium/chrome/browser/init/AsyncInitializationActivity.java
将requiresFirstRunToBeCompleted方法的返回值修改为false:
/*** Overriding this function is almost always wrong.* @return Whether or not the user needs to go through First Run before using this Activity.*/
protected boolean requiresFirstRunToBeCompleted(Intent intent) {return false;
}
源码路径:/chromium/src/chrome/android/java/src/org/chromium/chrome/browser/LaunchIntentDispatcher.java
删除或注释掉dispatch方法中下面的判断逻辑:
// Check if we should push the user through First Run.
if (FirstRunFlowSequencer.launch(mActivity, mIntent, false /* requiresBroadcast */,false /* preferLightweightFre */)) {return Action.FINISH_ACTIVITY;
}
6.应用全屏显示
源码路径:/chromium/src/chrome/android/java/res/values/styles.xml
在上面的源码中,找到Base.Theme.Chromium.WithWindowAnimation主题,增加下面的全屏设置属性:
<style name="Base.Theme.Chromium.WithWindowAnimation">...<item name="windowNoTitle">true</item><item name="windowActionBar">false</item><item name="android:windowFullscreen">true</item><item name="android:windowActionBar">false</item>
</style>
7.移除首页的所有菜单栏
源码路径:/chromium/src/chrome/android/java/res_app/layout/main.xml
在CoordinatorLayoutForPointer控件中,增加layout_marginTop属性,其实是往上移动了UI,把菜单栏隐藏了:
<mergexmlns:android="http://schemas.android.com/apk/res/android"xmlns:app="http://schemas.android.com/apk/res-auto">...<org.chromium.components.browser_ui.widget.CoordinatorLayoutForPointerandroid:id="@+id/coordinator"android:layout_width="match_parent"android:layout_height="match_parent"android:layout_weight="1" android:layout_marginTop="-96dp"></mergr>
8.增加点击两次退出应用的功能
源码路径:/chromium/src/chrome/android/java/src/org/chromium/chrome/browser/app/ChromeActivity.java
在ChromeActivity类中增加下面的方法:
public int getTabsCount() {TabModelSelector modelSelector = getTabModelSelector();if (modelSelector == null) return 0;return modelSelector.getTotalTabCount();
}
源码路径:/chromium/src/chrome/android/java/src/org/chromium/chrome/browser/ChromeTabbedActivity.java
修改minimizeAppAndCloseTabOnBackPress方法:
private boolean mExitApp;private boolean minimizeAppAndCloseTabOnBackPress(@Nullable Tab currentTab) {if (currentTab == null) {BackPressManager.record(BackPressHandler.Type.MINIMIZE_APP_AND_CLOSE_TAB);MinimizeAppAndCloseTabBackPressHandler.record(MinimizeAppAndCloseTabType.MINIMIZE_APP);assertOnLastBackPress();moveTaskToBack(true);return true;}// TAB history handler has a higher priority and should navigate page back before// minimizing app and closing tab.assert !currentTab.canGoBack(): "Tab should be navigated back before closing or exiting app";final boolean shouldCloseTab = backShouldCloseTab(currentTab);final WebContents webContents = currentTab.getWebContents();// Minimize the app if either:// - we decided not to close the tab// - we decided to close the tab, but it was opened by an external app, so we will go// exit Chrome on top of closing the tabfinal boolean minimizeApp = false;BackPressManager.record(BackPressHandler.Type.MINIMIZE_APP_AND_CLOSE_TAB);assertOnLastBackPress();if (minimizeApp) {if (shouldCloseTab) {MinimizeAppAndCloseTabBackPressHandler.record(MinimizeAppAndCloseTabType.MINIMIZE_APP_AND_CLOSE_TAB);sendToBackground(currentTab);} else {MinimizeAppAndCloseTabBackPressHandler.record(MinimizeAppAndCloseTabType.MINIMIZE_APP);sendToBackground(null);}return true;} else if (shouldCloseTab) {if (getTabsCount() > 1) {MinimizeAppAndCloseTabBackPressHandler.record(MinimizeAppAndCloseTabType.CLOSE_TAB);if (webContents != null) webContents.dispatchBeforeUnload(false);return true;}if (mExitApp) {MinimizeAppAndCloseTabBackPressHandler.record(MinimizeAppAndCloseTabType.CLOSE_TAB);if (webContents != null) webContents.dispatchBeforeUnload(false);return false;}Toast.makeText(this, "再按一次退出", Toast.LENGTH_SHORT).show();mExitApp = true;new Timer().schedule(new TimerTask() {@Overridepublic void run() {mExitApp = false;}}, 2000);return true;}return false;
}
9.默认不加载新标签页
源码路径:/chromium/src/components/embedder_support/android/java/src/org/chromium/components/embedder_support/util/UrlConstants.java
把下面两个参数,改成你想要显示的网页地址就可以了:
public static final String NTP_URL = "chrome-native://newtab/";public static final String NTP_NON_NATIVE_URL = "chrome://newtab/";
10.导航栏背景
新版本的浏览器,底部导航栏背景是白色的,如果有修改背景颜色的需求,可以改这里:
源码路径:/chromium/src/chrome/android/java/src/org/chromium/chrome/browser/tabbed_mode/TabbedNavigationBarColorController.java
把updateNavigationBarColor方法中,setNavigationBarIconColor参数改成false:
@SuppressLint("NewApi")
private void updateNavigationBarColor() {...UiUtils.setNavigationBarIconColor(mRootView, false);
}
修改下面两个方法,冒号后面修改成你想要设置的导航栏背景颜色就可以了:
private @ColorInt int getNavigationBarColor(boolean forceDarkNavigationBar) {return forceDarkNavigationBar? mContext.getColor(R.color.toolbar_background_primary_dark): mContext.getColor(R.color.navigation_bubble_arrow);
}private @ColorInt int getNavigationBarDividerColor(boolean forceDarkNavigationBar) {return forceDarkNavigationBar? mContext.getColor(R.color.bottom_system_nav_divider_color_light): mContext.getColor(R.color.navigation_bubble_arrow);
}
11.遇到的问题
更新源码的时候,遇到这个提示:
NOTICE: You have PROXY values set in your environment, but gsutilin depot_tools does not (yet) obey them.Also, --no_auth prevents the normal BOTO_CONFIG environmentvariable from being used.To use a proxy in this situation, please supply those settingsin a .boto file pointed to by the NO_AUTH_BOTO_CONFIG environmentvariable.
被墙了,已经设置了全局代理,还需要再加个配置,将下面的配置保存成文件**.boto**,然后配置下环境变量:
[boto]
proxy=127.0.0.1
proxy_port=端口号
环境变量:
export PATH="$PATH:$HOME/.boto"
注意:文章中是把depot_tool下载到了【home/用户名】目录下,所以使用【$HOME】代表,环境变量要根据实际下载的路径修改。
12.编译脚本
最后在附上args.gn编译脚本:
target_os = "android"
target_cpu = "arm"
# Release版本
is_debug = false
# 不允许远程调试
enable_remoting = false
# 使用Chrome官方的编译优化建议
is_official_build = true
# 分散链接编译
is_component_build = false
# 不使用官方API秘钥
use_official_google_api_keys = false
# 关闭支持NACL,这是一种Chrome插件,因为安全性,稳定性存在问题,已经很少使用了
enable_nacl = false# 支持H264编码
proprietary_codecs = true
# 解码器
ffmpeg_branding = "Chrome"# 解决不能播放MP4格式的视频问题
rtc_use_h264 = truedeclare_args(){# 整体优化,对整个程序的多个编译单元进行全局优化,获取更好的性能和代码体积优化full_wpo_on_official = true# 删除内核层支持调试的符号文件remove_webcore_debug_symbols = false# 初始化FFmpegrtc_initialize_ffmpeg = true# 支持OpenH264use_openh264 = true
}
13.写在最后
到这里,Chromium源码的UI定制就完成了,有问题可以给我留言评论,谢谢。