//实现放大缩小控件隐藏
public void setZoomControlGone(View view) {
Class classType;
Field field;
try {
classType = WebView.class;
field = classType.getDeclaredField("mZoomButtonsController");
field.setAccessible(true);
ZoomButtonsController mZoomButtonsController = new ZoomButtonsController(view);
mZoomButtonsController.getZoomControls().setVisibility(View.GONE);
try {
field.set(view, mZoomButtonsController);
} catch (IllegalArgumentException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
e.printStackTrace();
}
} catch (SecurityException e) {
e.printStackTrace();
} catch (NoSuchFieldException e) {
e.printStackTrace();
}
}

调用：

webView = (WebView) findViewById(R.id.webView);
webView.setScrollBarStyle(View.SCROLLBARS_INSIDE_OVERLAY);
WebSettings webSettings =webView.getSettings();
webSettings.setjava scriptEnabled(true);
webSettings.setBuiltInZoomControls(true);
setZoomControlGone(webView);

通过以上方法即可实现