// 在Activity中加载网页 public class MyActivity extends AppCompatActivity { private WebView webView; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_my); webView = findViewById(R.id.webview); // 启用JavaScript WebSettings webSettings = webView.getSettings(); webSettings.setJavaScriptEnabled(true); // 设置支持缩放 webSettings.setSupportZoom(true); webSettings.setBuiltInZoomControls(true); // 加载网页 webView.loadUrl("https://www.example.com"); // 如果需要处理页面加载的不同状态，可以设置WebViewClient webView.setWebViewClient(new WebViewClient()); // 如果需要处理JavaScript的Alert弹窗，可以设置WebChromeClient webView.setWebChromeClient(new WebChromeClient() { @Override public boolean onJsAlert(WebView view, String url, String message, JsResult result) { // 处理JavaScript的Alert弹窗 return super.onJsAlert(view, url, message, result); } }); } // 当按返回键时，导航回WebView的历史记录 @Override public boolean onKeyDown(int keyCode, KeyEvent event) { if (keyCode == KeyEvent.KEYCODE_BACK && webView.canGoBack()) { webView.goBack(); return true; } return super.onKeyDown(keyCode, event); } }

android:usesCleartextTraffic="true"