android webview 实现放大缩小 隐藏控件问题
android webview为我们提供了很多方便的接口及方法,在使用其放大和缩小功能时也一样的如此方便,但有一个问题就是在使用的时候很容易跟webview控件中的内容形成操作上的冲突,最后通过网上查找资料实现了放大缩小功能,主要分为两步具体如下
//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.setJavaScriptEnabled(true); webSettings.setBuiltInZoomControls(true); setZoomControlGone(webView);