android - how to implement next and previous buttons in webview?

Question

i'm implemented the project in web-view. it retries the data from sqlite . i need next and previous button in the web-view. if i touch on next button it will display the next record in that database.(previous also )

Thanks, Vinay

Answer 1

On the top of Webview put two buttons with Next and Previous Arrows.

In the onClick() of Next write the goForward code and in Previous write goBack code as below

@Override
public void onClick(View v)
{
if(v==btnNext)
{
 if(webView.canGoForward())
{
webView.goForward();
}
}
if(v==btnPrevious)
{
 if(webView.canGoBack())
{
webView.goBack();
}
}
}

Answer 2

试试这个，首先存储所有记录字符串数组。

 String[] str = {"one", "two", "", "three"};

  int record= 0;
   next.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View v) {
                           record =  record +1;
            myWebView.loadData(record[1], "text/html; charset=UTF-8", null);
        }
    });

previous.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View v) {
                           record =  record -1;
            myWebView.loadData(record[1], "text/html; charset=UTF-8", null);
        }
    });