Android中设置WebView禁止缩放网页的步骤

WebSettings webSettings = webView.getSettings();

webSettings.setSupportZoom(false);
webSettings.setBuiltInZoomControls(false);
webSettings.setDisplayZoomControls(false);

webSettings.setUseWideViewPort(true);
webSettings.setLoadWithOverviewMode(true);

WebView webView = findViewById(R.id.webView);
WebSettings webSettings = webView.getSettings();
webSettings.setSupportZoom(false);
webSettings.setBuiltInZoomControls(false);
webSettings.setDisplayZoomControls(false);
webSettings.setUseWideViewPort(true);
webSettings.setLoadWithOverviewMode(true);
webView.loadUrl("https://www.example.com");

<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">

webView.setWebViewClient(new WebViewClient() {
    @Override
    public void onPageFinished(WebView view, String url) {
        super.onPageFinished(view, url);
        view.evaluateJavascript("document.addEventListener('touchstart', function(event) { event.preventDefault(); }, false);", null);
        view.evaluateJavascript("document.addEventListener('gesturestart', function(event) { event.preventDefault(); }, false);", null);
    }
});

public class NonScalableWebView extends WebView {
    public NonScalableWebView(Context context) {
        super(context);
    }

    @Override
    public boolean onTouchEvent(MotionEvent event) {
        if (event.getPointerCount() > 1) {
            // 多个手指触摸时,禁止缩放
            return false;
        }
        return super.onTouchEvent(event);
    }
}

<your.package.name.NonScalableWebView
    android:id="@+id/webView"
    android:layout_width="match_parent"
    android:layout_height="match_parent" />

<meta name="viewport" content="width=device-width">

document.documentElement.addEventListener('touchstart', function (event) {
  if (event.touches.length > 1) {
    event.preventDefault();
  }
}, false);

var lastTouchEnd = 0;
document.documentElement.addEventListener('touchend', function (event) {
  var now = Date.now();
  if (now - lastTouchEnd <= 300) {
    event.preventDefault();
  }
  lastTouchEnd = now;
}, false);