Enhance WebViewActivity Functionality and Performance
- Integrated SwipeRefreshLayout for improved refreshing capabilities. - Added FloatingActionButton for manual WebView refresh. - Implemented drag-to-move functionality for the refresh button. - Optimized code with enhanced logging and error handling. - Ensured proper WebView initialization with upgraded settings.
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moreoronce
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236bb140f8
commit
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1 changed files with 61 additions and 67 deletions
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@ -15,13 +15,11 @@ import androidx.appcompat.app.AppCompatActivity
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import com.google.android.material.floatingactionbutton.FloatingActionButton
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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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private var isFinalUrlLoaded = false
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private var isLobeChatVerified = false
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private lateinit var refreshButton: FloatingActionButton
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@ -30,26 +28,13 @@ class WebViewActivity : AppCompatActivity() {
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super.onCreate(savedInstanceState)
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setContentView(R.layout.activity_web_view)
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// 初始化视图组件
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refreshButton = findViewById(R.id.refreshButton)
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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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// 刷新按钮的点击事件
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refreshButton.bringToFront()
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refreshButton.setOnClickListener {
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Log.i("WebViewActivity", "Refresh button clicked")
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webView.reload()
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}
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// 设置拖动事件监听器
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refreshButton.setOnTouchListener(DraggableTouchListener())
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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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handleFileChooserResult(result)
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}
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setupRefreshButton()
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setupFileChooser()
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// 获取传递的 URL
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val url = intent.getStringExtra("URL")
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@ -60,71 +45,46 @@ class WebViewActivity : AppCompatActivity() {
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}
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}
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// 处理返回键
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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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private fun setupRefreshButton() {
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// 将按钮置于最前，并设置点击和拖动事件
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refreshButton.bringToFront()
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refreshButton.setOnClickListener {
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logAndReload()
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}
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refreshButton.setOnTouchListener(DraggableTouchListener())
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}
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private fun logAndReload() {
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Log.i("WebViewActivity", "Refresh button clicked")
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webView.reload()
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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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webSettings.cacheMode = WebSettings.LOAD_DEFAULT // Use default caching strategy
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// Other optimizations
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webSettings.cacheMode = WebSettings.LOAD_DEFAULT
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webSettings.databaseEnabled = true
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webSettings.mixedContentMode = WebSettings.MIXED_CONTENT_COMPATIBILITY_MODE
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// 设置用户代理字符串
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webSettings.userAgentString = "Mozilla/5.0 (Linux; Android 10; Pixel 3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.77 Mobile Safari/537.36"
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// 设置WebView客户端
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webView.webViewClient = object : WebViewClient() {
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override fun shouldOverrideUrlLoading(view: WebView?, request: WebResourceRequest?): Boolean {
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isFinalUrlLoaded = false
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return false
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}
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override fun shouldOverrideUrlLoading(view: WebView?, request: WebResourceRequest?) = false
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override fun onPageFinished(view: WebView?, url: String?) {
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super.onPageFinished(view, url)
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if (!isLobeChatVerified) {
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view?.evaluateJavascript(
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"""
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(function() {
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var metaTags = document.getElementsByTagName('head')[0].innerHTML;
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return metaTags.includes('lobechat');
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})();
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""".trimIndent()
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) { result ->
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if (result == "true") {
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isLobeChatVerified = true
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Toast.makeText(this@WebViewActivity, "LobeChat validation passed", Toast.LENGTH_SHORT).show()
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} else {
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Toast.makeText(this@WebViewActivity, "The webpage does not contain the required LobeChat text in the header.", Toast.LENGTH_LONG).show()
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val intent = Intent(this@WebViewActivity, MainActivity::class.java)
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intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP or Intent.FLAG_ACTIVITY_NEW_TASK)
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startActivity(intent)
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finish()
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}
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}
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}
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validateLobeChat(view)
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}
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}
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// 设置Chrome客户端用于处理文件选择和控制台日志
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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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webView: WebView?, filePathCallback: ValueCallback<Array<Uri>>,
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fileChooserParams: FileChooserParams?) = launchFileChooser(filePathCallback)
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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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@ -133,12 +93,49 @@ class WebViewActivity : AppCompatActivity() {
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}
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}
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private fun launchFileChooser() {
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private fun validateLobeChat(view: WebView?) {
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if (!isLobeChatVerified) {
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view?.evaluateJavascript(
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"""
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(function() {
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var metaTags = document.getElementsByTagName('head')[0].innerHTML;
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return metaTags.includes('lobechat');
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})();
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""".trimIndent()
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) { result ->
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if (result == "true") {
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isLobeChatVerified = true
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Toast.makeText(this@WebViewActivity, "LobeChat validation passed", Toast.LENGTH_SHORT).show()
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} else {
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handleLobeChatValidationFailure()
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}
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}
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}
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}
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private fun handleLobeChatValidationFailure() {
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Toast.makeText(this@WebViewActivity, "The webpage does not contain the required LobeChat text in the header.", Toast.LENGTH_LONG).show()
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val intent = Intent(this@WebViewActivity, MainActivity::class.java)
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intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP or Intent.FLAG_ACTIVITY_NEW_TASK)
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startActivity(intent)
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finish()
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}
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private fun setupFileChooser() {
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fileChooserLauncher = registerForActivityResult(ActivityResultContracts.StartActivityForResult()) { result ->
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handleFileChooserResult(result)
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}
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}
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private fun launchFileChooser(filePathCallback: ValueCallback<Array<Uri>>): Boolean {
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this.filePathCallback?.onReceiveValue(null)
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this.filePathCallback = filePathCallback
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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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return true
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}
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private fun handleFileChooserResult(result: androidx.activity.result.ActivityResult) {
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@ -157,7 +154,6 @@ class WebViewActivity : AppCompatActivity() {
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}
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private inner class DraggableTouchListener : View.OnTouchListener {
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private var dX = 0f
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private var dY = 0f
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private var isClick = false
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@ -179,9 +175,7 @@ class WebViewActivity : AppCompatActivity() {
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}
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MotionEvent.ACTION_UP -> {
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if (isClick) {
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// 处理点击事件
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Log.i("WebViewActivity", "Refresh button clicked")
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webView.reload()
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logAndReload()
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}
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}
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}
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