上一篇讲解了腾讯 X5
内核的集成,这一篇是讲解 Crosswalk
的集成 Crosswalk
也是采用了Chromenium
内核,是一款开源的 web
引擎,开发者可以直接把 Crosswalk
嵌入到应用之中,当然也支持共享模式(系统中没有对应的 Crosswalk
库是会提示下载)。只不过 Crosswalk
已经停止维护了。
集成
想要使用 CrossWalk
有三种方式:
-
maven
远程依赖
//配置gradle
repositories {
maven {
url 'https://download.01.org/crosswalk/releases/crosswalk/android/maven2'
}
}
compile 'org.xwalk:xwalk_core_library:23.53.589.4'
2.下载 zip 包后解压,然后以用开发工具Import Module
导入,作为一个library
依赖。
推荐使用
stable
(稳定版)!其他的分别是beta
(测试版),canary
(金丝雀版)。下载最新版本的zip
包:23.53.589.4
3.下载aar
下载aar
包后导入项目的 lib
目 录下,然后在gradle
中添加
repositories {
flatDir {
dirs 'libs'
}
}
使用
1.manifest
中添加
android:hardwareAccelerated="true" //application节点下开启硬件加速
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.READ_PHONE_STATE" />
<uses-permission android:name="android.permission.CAMERA" />
<uses-permission android:name="android.permission.RECORD_AUDIO" />
<uses-permission android:name="android.permission.MODIFY_AUDIO_SETTINGS" />
2.布局中添加
<org.xwalk.core.XWalkView
android:id="@+id/xwalkview"
android:layout_width="match_parent"
android:layout_height="match_parent">
</org.xwalk.core.XWalkView>
3.新建 Activity
继承 XWalkActivity
,onXWalkReady()
方法里面进行初始化操作
class MainActivity : XWalkActivity() {
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
}
override fun onXWalkReady() {
XWalkPreferences.setValue(XWalkPreferences.ANIMATABLE_XWALK_VIEW, true); //开启默认动画
var setting = xwalkview.settings
setting.loadWithOverviewMode = false
setting.javaScriptEnabled = true //支持js
setting.javaScriptCanOpenWindowsAutomatically = true //支持通过JS打开新窗口
setting.useWideViewPort = true //将图片调整到合适webview的大小
setting.loadWithOverviewMode = true //缩放至屏幕的大小
setting.loadsImagesAutomatically = true //支持自动加载图片
setting.supportMultipleWindows() //支持多窗口
setting.setSupportZoom(true)
setting.allowFileAccess = true
setting.setDomStorageEnabled(true)
setting.allowContentAccess = true
setting.allowContentAccess = true
setting.domStorageEnabled = true
xwalkview.requestFocus()
setting.cacheMode = WebSettings.LOAD_NO_CACHE
xwalkview.setResourceClient(object : XWalkResourceClient(xwalkview) {
override fun onLoadStarted(view: XWalkView?, url: String?) {
super.onLoadStarted(view, url)
}
override fun onLoadFinished(view: XWalkView?, url: String?) {
super.onLoadFinished(view, url)
}
override fun shouldOverrideUrlLoading(view: XWalkView?, url: String?): Boolean {
view?.loadUrl(url)
return true
}
override fun onReceivedSslError(view: XWalkView?, callback:
ValueCallback<Boolean>?, error: SslError?) {
callback?.onReceiveValue(true)
super.onReceivedSslError(view, callback, error)
}
override fun onReceivedLoadError(view: XWalkView?, errorCode: Int,
description: String?, failingUrl: String?) {
super.onReceivedLoadError(view, errorCode, description, failingUrl)
}
override fun onProgressChanged(view: XWalkView?, process: Int) {
super.onProgressChanged(view, process)
if (...) {
...
progressBar.setProgress(process)
...
} else {
...
}
}
})
xwalkview.setUIClient(object :XWalkUIClient(xwalkview){
override fun onJsAlert(view: XWalkView?, url: String?,
message: String?, result: XWalkJavascriptResult?): Boolean {
return super.onJsAlert(view, url, message, result)
}
override fun onReceivedTitle(view: XWalkView?, title: String?) {
super.onReceivedTitle(view, title)
}
override fun openFileChooser(view: XWalkView?, uploadFile: ValueCallback<Uri>?, acceptType: String?, capture: String?) {
super.openFileChooser(view, uploadFile, acceptType, capture)
}
})
xwalkview.loadUrl("your url")
}
override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
if (xwalkview!=null){
xwalkview.onActivityResult(requestCode, resultCode, data)
}
}
override fun onNewIntent(intent: Intent?) {
if (xwalkview != null) {
xwalkview.onNewIntent(intent)
}
}
override fun onDestroy() {
super.onDestroy()
XWalkPreferences.setValue(XWalkPreferences.ANIMATABLE_XWALK_VIEW, false);
}
}
XWalkUIClient
对应系统 webview 中的 WebChromeClient
XWalkResourceClient
对应系统 webview 的 WebViewClient
- 监听页面生命
override fun onResume() {
super.onResume()
xwalkview?.let {
xwalkview.pauseTimers()
xwalkview.onHide()
}
}
override fun onPause() {
super.onPause()
xwalkview?.let {
xwalkview.pauseTimers()
xwalkview.onHide()
}
}
- 判断页面返回
if (xwalkview.navigationHistory.canGoBack()) {
xwalkview.getNavigationHistory().navigate(
XWalkNavigationHistory.Direction.BACKWARD, 1)
} else {
finish()
}
提示
在使用 Crosswalk
的过程遇到了几个问题,在这里提一下,希望能有一点帮助。
-
lang.RuntimeException: Crosswalk's APIs are not ready yet
异常:请在onready里面进行相关设置和加载页面 - 使用第一种
maven
集成方式 可能会报资源异常
在你的build.gradle
中添加:
configurations.all {
resolutionStrategy {
force 'com.android.support:support-v4:27.1.0'//自己的版本号
}
}
3.Crosswalk
加载 SSL
证书有问题的网站时会报 Rquest was denied for security
override fun onReceivedSslError(view: XWalkView?, callback: ValueCallback<Boolean>?, error: SslError?) {
callback?.onReceiveValue(true) //系统webview中的是handler.process()
}
添加上述代码后会回调 onReceivedLoadError
并报net:: ERR_SECURITY_RESPONSE
。这个问题折腾了很久,在 xwalkview的论坛 中发现 Crosswalk
会阻止连接到不信任的 SSL
。
最后发现源码中的 SsLUtil.java
会阻止加载。
public static boolean shouldDenyRequest(int error)
{
assert error >= -215 && error <= -200;
switch (error)
{
case -213:
case -212:
case -211:
case -208:
case -207:
case -206:
case -203:
// case -202:
case -201:
// case -200:
case -150:
case -129:
return true;
}
return false;
}
修改后的资源已忽略证书安全问题「不建议忽略证书安全问题,我是测试环境所需」
参考文档:
Crosswalk官网
Crosswalk Api 文档
Crosswalk 项目
官方论坛
最后
关于腾讯 X5
内核集成请跳转:
Android集成三方浏览器之X5内核
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