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重新计算Webview的内容高度，并设置到Webview

@JavascriptInterfacepublic void resize(final float height) {    runOnUiThread(new Runnable() {        @Override        public void run() {            //Toast.makeText(getActivity(), height + "", Toast.LENGTH_LONG).show();            //此处的 layoutParmas 需要根据父控件类型进行区分，这里为了简单就不这么做了            webView.setLayoutParams(new FrameLayout.LayoutParams(getResources().getDisplayMetrics().widthPixels, (int) (height * getResources().getDisplayMetrics().density)));        }    });}

主动调用：

webView.setWebViewClient(new WebViewClient() {    @Override    public void onPageFinished(WebView view, String url) {
  	//获取html可见的高度，会有出错        webView.loadUrl("javascript:App.resize(document.body.getBoundingClientRect().height)"); 	//获取第一个快元素的高度，效率更好 	webView.loadUrl("javascript:App.resize(document.getElementsByTagName('div')[0].scrollHeight)");        super.onPageFinished(view, url);    }});webView.addJavascriptInterface(this, "App");

//别忘了设置webview支持javascript

WebSettings settings = webView.getSettings();settings.setJavaScriptEnabled(true);

--------------------------------------------------屏蔽Scrollview内的滑动事件-----------------------------------------------

package com.xiaoyan.chat.widget; import android.content.Context;import android.util.AttributeSet;import android.view.MotionEvent;import android.view.ViewConfiguration;import android.widget.ScrollView;import com.xiaoyan.chat.util.L;public class TolerantScrollView extends ScrollView {   private int mLastX;   private int mLastY;      private int distanceX;   private int distanceY;      private int mTouchSlop;      public TolerantScrollView(Context context, AttributeSet attrs, int defStyle) {      super(context, attrs, defStyle);      init();   }   public TolerantScrollView(Context context, AttributeSet attrs) {      super(context, attrs);      init();   }   public TolerantScrollView(Context context) {      super(context);      init();   }      private void init(){      /**       * define touch slop according to the display       */        final ViewConfiguration configuration = ViewConfiguration.get(getContext());        mTouchSlop = configuration.getScaledTouchSlop();   }   /**    * Processes every touch event through the {
    @link #onTouchEvent(MotionEvent)}    * and intercepts if only we have restricted vertical scrolling.    * 
    *     * {
    @inheritDoc}    */   @Override   public boolean onInterceptTouchEvent(MotionEvent ev) {      onTouchEvent(ev);      int dy = 0;      int dx = 0;      switch(ev.getAction()){      case MotionEvent.ACTION_DOWN:         distanceX = 0;         distanceY = 0;         mLastX = (int) ev.getX();         mLastY = (int) ev.getY();         break;      case MotionEvent.ACTION_MOVE:         dx = Math.abs((int) (mLastX - ev.getX()));         mLastX = (int) ev.getX();         distanceX += dx;         dy = Math.abs((int) (mLastY - ev.getY()));         mLastY = (int) ev.getY();         distanceY += dy;         break;      case MotionEvent.ACTION_CANCEL:      case MotionEvent.ACTION_UP:         // define whether we have vertical scrolling          // without horizontal one and intercept if so         if (distanceY > mTouchSlop && distanceX < mTouchSlop){            L.e(VIEW_LOG_TAG, "intercepted");            return true;         }              distanceX = 0;         distanceY = 0;         break;      }      return false;   }}

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