120 lines
4.3 KiB
Kotlin
120 lines
4.3 KiB
Kotlin
package com.example.lobchat
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import android.app.Activity
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import android.content.Intent
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import android.net.Uri
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import android.os.Bundle
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import android.util.Log
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import android.webkit.*
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import androidx.appcompat.app.AppCompatActivity
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import androidx.activity.result.ActivityResultLauncher
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import androidx.activity.result.contract.ActivityResultContracts
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import com.google.android.material.snackbar.Snackbar
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class WebViewActivity : AppCompatActivity() {
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private lateinit var webView: WebView
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private var filePathCallback: ValueCallback<Array<Uri>>? = null
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private lateinit var fileChooserLauncher: ActivityResultLauncher<Intent>
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override fun onCreate(savedInstanceState: Bundle?) {
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super.onCreate(savedInstanceState)
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setContentView(R.layout.activity_web_view) // 确保这个布局文件存在
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// 初始化 WebView
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webView = findViewById(R.id.webView)
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setupWebView()
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// 设置状态栏为透明，使系统自动使用默认的颜色
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window.statusBarColor = resources.getColor(android.R.color.transparent, theme)
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// 初始化文件选择器启动器
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fileChooserLauncher = registerForActivityResult(ActivityResultContracts.StartActivityForResult()) { result ->
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if (result.resultCode == Activity.RESULT_OK && result.data != null) {
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val resultUri = result.data?.data
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if (filePathCallback != null) {
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filePathCallback?.onReceiveValue(resultUri?.let { arrayOf(it) })
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filePathCallback = null
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}
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} else {
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filePathCallback?.onReceiveValue(null)
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filePathCallback = null
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}
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}
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// 获取传递的 URL
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val url = intent.getStringExtra("URL") // 确保这个 key 和 MainActivity 一致
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if (!url.isNullOrEmpty()) {
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webView.loadUrl(url)
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} else {
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showSnackbar("No URL provided")
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}
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}
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private fun setupWebView() {
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val webSettings: WebSettings = webView.settings
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webSettings.javaScriptEnabled = true
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webSettings.domStorageEnabled = true
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webView.webViewClient = object : WebViewClient() {
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override fun onReceivedError(view: WebView?, request: WebResourceRequest?, error: WebResourceError?) {
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showSnackbar("Network error, please try again later.")
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}
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override fun onPageFinished(view: WebView?, url: String?) {
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super.onPageFinished(view, url)
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// 注入 JavaScript 来禁用 PWA 安装提示
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injectJavaScript(view)
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}
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}
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webView.webChromeClient = object : WebChromeClient() {
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override fun onShowFileChooser(
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webView: WebView?,
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filePathCallback: ValueCallback<Array<Uri>>,
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fileChooserParams: FileChooserParams?
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): Boolean {
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this@WebViewActivity.filePathCallback?.onReceiveValue(null)
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this@WebViewActivity.filePathCallback = filePathCallback
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launchFileChooser()
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return true
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}
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override fun onConsoleMessage(consoleMessage: ConsoleMessage?): Boolean {
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Log.e("WebViewConsole", "JavaScript Error: ${consoleMessage?.message()} -- From line ${consoleMessage?.lineNumber()} of ${consoleMessage?.sourceId()}")
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return true
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}
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}
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}
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private fun injectJavaScript(view: WebView?) {
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view?.evaluateJavascript(
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"""
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window.addEventListener('beforeinstallprompt', function(e) {
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e.preventDefault();
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console.log('Install prompt blocked by WebView');
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});
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""".trimIndent(), null
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)
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}
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private fun launchFileChooser() {
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val intent = Intent(Intent.ACTION_GET_CONTENT).apply {
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addCategory(Intent.CATEGORY_OPENABLE)
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type = "image/*"
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}
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fileChooserLauncher.launch(Intent.createChooser(intent, "Select Picture"))
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}
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private fun showSnackbar(message: String) {
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Snackbar.make(findViewById(android.R.id.content), message, Snackbar.LENGTH_LONG).show()
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}
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override fun onBackPressed() {
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if (webView.canGoBack()) {
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webView.goBack()
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} else {
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super.onBackPressed()
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}
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}
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}
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