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[foundation][feat]Add webview action sample
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‎app-catalog/samples/foundation/src/main/AndroidManifest.xml‎

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android:name=".aidl.AidlSampleActivity"
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android:exported="true"
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android:theme="@style/Theme.AppCompat.DayNight" />
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<activity
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android:name=".webview.CustomActionWebViewActivity"
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android:exported="true"
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android:theme="@style/Theme.AppCompat.DayNight" />
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</application>
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</manifest>

‎app-catalog/samples/foundation/src/main/java/com/wintmain/foundation/webview/CustomActionWebView.kt‎

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/*
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* Copyright 2023-2025 wintmain
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* https://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.wintmain.foundation.webview
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import android.content.Context
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import android.os.Build.VERSION
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import android.os.Build.VERSION_CODES
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import android.util.AttributeSet
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import android.view.ActionMode
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import android.view.ActionMode.Callback
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import android.webkit.JavascriptInterface
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import android.webkit.WebView
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import androidx.core.view.get
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import androidx.core.view.size
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class CustomActionWebView(
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context: Context,
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attrs: AttributeSet?,
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) : WebView(context, attrs) {
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companion object {
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private const val TAG = "CustomActionWebView"
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}
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private var mActionMode: ActionMode? = null
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private var mActionList: List<String> = ArrayList()
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private var mActionSelectListener: ActionSelectListener? = null
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/**
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* 处理item，处理点击
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* @param actionMode
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*/
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private fun resolveActionMode(actionMode: ActionMode?): ActionMode {
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if (actionMode != null) {
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val menu = actionMode.menu
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mActionMode = actionMode
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menu.clear()
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for (i in mActionList.indices) {
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menu.add(mActionList[i])
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}
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for (i in 0..<menu.size) {
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val menuItem = menu[i]
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menuItem.setOnMenuItemClickListener { item ->
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(item.title as String?)?.let { getSelectedData(it) }
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releaseAction()
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true
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}
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}
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}
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mActionMode = actionMode!!
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return actionMode
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}
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override fun startActionMode(callback: Callback?): ActionMode {
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val actionMode = super.startActionMode(callback)
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return resolveActionMode(actionMode)
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}
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override fun startActionMode(callback: Callback?, type: Int): ActionMode {
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val actionMode = super.startActionMode(callback, type)
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return resolveActionMode(actionMode)
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}
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private fun releaseAction() {
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if (mActionMode != null) {
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mActionMode!!.finish()
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mActionMode = null
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}
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}
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/**
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* 点击的时候，获取网页中选择的文本，回掉到原生中的js接口
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* @param title 传入点击的item文本，一起通过js返回给原生接口
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* IE9以下支持：document.selection 　　
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* IE9、Firefox、Safari、Chrome和Opera支持：window.getSelection()
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*/
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private fun getSelectedData(title: String) {
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val js = "(function getSelectedText() {" +
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"var txt1 =window.getSelection().getRangeAt(0).startContainer.data;" +
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"var txt2 =window.getSelection().toString();" +
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"var title = \"" + title + "\";" +
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"JSInterface.callback(txt1,txt2,title);" +
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"})()"
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if (VERSION.SDK_INT >= VERSION_CODES.KITKAT) {
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evaluateJavascript("javascript:$js", null)
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} else {
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loadUrl("javascript:$js")
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}
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}
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fun linkJSInterface() {
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addJavascriptInterface(ActionSelectInterface(), "JSInterface")
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}
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/**
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* 设置弹出action列表
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* @param actionList
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*/
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fun setActionList(actionList: MutableList<String>) {
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mActionList = actionList
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}
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/**
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* 设置点击回掉
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* @param actionSelectListener
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*/
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fun setActionSelectListener(actionSelectListener: ActionSelectListener?) {
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this.mActionSelectListener = actionSelectListener
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}
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/**
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* 隐藏消失Action
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*/
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fun dismissAction() {
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releaseAction()
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}
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/**
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* js选中的回掉接口
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*/
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private inner class ActionSelectInterface {
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@JavascriptInterface
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fun callback(parentText: String?, value: String?, title: String?) {
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this@CustomActionWebView.mActionSelectListener?.onClick(title, value, parentText)
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}
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}
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}
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interface ActionSelectListener {
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fun onClick(title: String?, parentText: String?, selectText: String?)
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}

‎app-catalog/samples/foundation/src/main/java/com/wintmain/foundation/webview/CustomActionWebViewActivity.kt‎

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/*
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* Copyright 2023-2025 wintmain
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* https://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.wintmain.foundation.webview
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import android.os.Bundle
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import android.webkit.WebSettings.LayoutAlgorithm.SINGLE_COLUMN
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import android.webkit.WebViewClient
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import android.widget.Toast
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import androidx.appcompat.app.AppCompatActivity
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import com.google.android.catalog.framework.annotations.Sample
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import com.wintmain.foundation.R
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@Sample(name = "CustomActionWebViewActivity", description = "", tags = ["webkit"])
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class CustomActionWebViewActivity : AppCompatActivity() {
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private lateinit var mWebView: CustomActionWebView
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override fun onCreate(savedInstanceState: Bundle?) {
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super.onCreate(savedInstanceState)
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setContentView(R.layout.custom_action_webview_activity)
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mWebView = findViewById(R.id.webview)
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val list: MutableList<String> = ArrayList()
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list.add("复制")
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list.add("分享")
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list.add("批注")
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//设置item
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mWebView.setActionList(list)
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//链接js注入接口，使能选中返回数据
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mWebView.linkJSInterface()
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//增加点击回调
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mWebView.setActionSelectListener(object : ActionSelectListener {
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override fun onClick(title: String?, parentText: String?, selectText: String?) {
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val info = "内容: $selectText。\n段落: $parent"
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Toast.makeText(applicationContext, info, Toast.LENGTH_LONG).show()
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}
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})
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// 开启 javascript 渲染
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val webSettings = mWebView.getSettings()
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webSettings.javaScriptCanOpenWindowsAutomatically = true
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//关键点
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webSettings.useWideViewPort = true
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webSettings.layoutAlgorithm = SINGLE_COLUMN
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webSettings.displayZoomControls = false
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// 设置支持javascript脚本
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webSettings.javaScriptEnabled = true
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// 允许访问文件
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webSettings.allowFileAccess = true
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// 设置显示缩放按钮
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webSettings.builtInZoomControls = true
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// 支持缩放
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webSettings.setSupportZoom(true)
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webSettings.loadWithOverviewMode = true
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mWebView.setWebViewClient(WebViewClient())
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// 载入内容
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// mWebView.loadUrl("file:///android_asset/111.html")
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mWebView.loadData("qweweeeeeeeeeeqewq", "text/html", "utf-8")
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}
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}

‎app-catalog/samples/foundation/src/main/res/layout/custom_action_webview_activity.xml‎

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<?xml version="1.0" encoding="utf-8"?><!--
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~ Copyright 2023-2025 wintmain
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~
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~ Licensed under the Apache License, Version 2.0 (the "License");
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~ you may not use this file except in compliance with the License.
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~ You may obtain a copy of the License at
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~
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~ https://www.apache.org/licenses/LICENSE-2.0
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~
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~ Unless required by applicable law or agreed to in writing, software
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~ distributed under the License is distributed on an "AS IS" BASIS,
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~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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~ See the License for the specific language governing permissions and
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~ limitations under the License.
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-->
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<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
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android:layout_width="match_parent"
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android:layout_height="match_parent"
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xmlns:app="http://schemas.android.com/apk/res-auto">
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<Button
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android:id="@+id/button"
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android:layout_width="match_parent"
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android:layout_height="wrap_content"
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app:layout_constraintEnd_toStartOf="parent"
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app:layout_constraintStart_toEndOf="parent"
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app:layout_constraintBottom_toTopOf="@+id/webview"
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android:text="Button" />
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<com.wintmain.foundation.webview.CustomActionWebView
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android:id="@+id/webview"
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android:layout_width="match_parent"
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android:layout_height="wrap_content"
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app:layout_constraintTop_toBottomOf="@id/button">
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</com.wintmain.foundation.webview.CustomActionWebView>
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</androidx.constraintlayout.widget.ConstraintLayout>

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