package com.example.mywidget;

import android.content.Context;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.webkit.WebView;

public class MyWebView extends WebView {


	public MyWebView(Context context) {
		super(context);
		// TODO Auto-generated constructor stub
	}
	
	public MyWebView(Context context,AttributeSet paramAttributeSet)
	 {
	       super(context,paramAttributeSet);
	 }
	@Override
	public boolean onTouchEvent(MotionEvent event) {
		// TODO Auto-generated method stub
		if(event.getAction()==event.ACTION_MOVE&&(event.getX())>0&&this.canGoBack()){
			this.goBack();
			System.out.println("MyWebView.onTouchEvent():goBack:"+event.getRawX());
			return true;
		}else if(event.getAction()==event.ACTION_MOVE&&event.getRawX()<0&&this.canGoForward()){
			this.goForward();
			System.out.println("MyWebView.onTouchEvent():goForward:"+event.getRawX());
			return true;
		}
		return super.onTouchEvent(event);
	}

}

XML中引用自定义控件

在XML中加入自定义控件其实很简单。只需要在控件名字前加入包名即可。如下：

<com.example.mywidget.MyWebView
    android:id="@+id/webView"    
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    />

	public MyWebView(Context context,paramAttributeSet);
	 }