I am facing some strange issue in webview at time of loading html content with anchor link.
Following code works perfect for anchor tag but only once.
Second time when i press anchor tag it is not working.
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.mywebview);
String html = "<html><body><p><a href='#C4'>See also Chapter 4</a></p><p><h2>Chapter 1</h2><p>This chapter explains ba bla bla</p><h2>Chapter 2</h2><p>This chapter explains ba bla bla</p><h2>Chapter 3</h2><p>This chapter explains ba bla bla</p><h2><a name='C4'>Chapter 4</a></h2><p>This chapter explains ba bla bla</p><h2>Chapter 5</h2><p>This chapter explains ba bla bla</p><h2>Chapter 6</h2><p>This chapter explains ba bla bla</p><h2>Chapter 7</h2><p>This chapter explains ba bla bla</p><h2>Chapter 8</h2><p>This chapter explains ba bla bla</p><h2>Chapter 9</h2><p>This chapter explains ba bla bla</p></body></html>";
String mime = "text/html";
String encoding = "utf-8";
WebView myWebView = (WebView)this.findViewById(R.id.webView1);
myWebView.loadDataWithBaseURL(null, html, mime, encoding, null);
}
i have tried this link but not worked for me.
UPDATE:
Testing result of my code in various device.
Working
1. Samsung S Plus –> 2.3.4
2. Samsung Galaxy Y –> 2.3.6
3. Samsung Galaxy Tab –> 2.3.3
4. Motorola Xoom –> 3.2
Not Working
1. LG Optimus –> 2.2
2. DELL XCD35(ZTE Blade) –> 2.2
3. HTC WildFire –> 2.2.1
Is this OS issue or something else? Any Solution for this??
The problem was to Reload the Page again after Anchor link Click.
I have used the following code,
chapters.xml in Assets folder
<html>
<body>
<p><a href="#C4">See also Chapter 4</a></p>
<p><h2><a name='C1'>Chapter 1<a></h2><p>This chapter explains ba bla bla</p>
<h2>Chapter 2</h2><p>This chapter explains ba bla bla</p>
<h2>Chapter 3</h2><p>This chapter explains ba bla bla</p>
<h2><a name='C4'>Chapter 4</a></h2><p>This chapter explains ba bla bla</p>
<h2>Chapter 5</h2><p>This chapter explains ba bla bla</p>
<h2>Chapter 6</h2><p>This chapter explains ba bla bla</p>
<h2>Chapter 7</h2><p>This chapter explains ba bla bla</p>
<a href="#C1">See also Chapter 1</a>
</body>
</html>
JAVA code : First Way
public class MainActivity extends Activity {
WebView myWebView;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
myWebView = new WebView(this);
myWebView.getSettings().setJavaScriptEnabled(true);
myWebView.loadUrl("file:///android_asset/chapters.html");
setContentView(myWebView);
final GestureDetector gestureDetector = new GestureDetector(
new MyGestureDetector());
View.OnTouchListener gestureListener = new View.OnTouchListener() {
public boolean onTouch(View v, MotionEvent event) {
return gestureDetector.onTouchEvent(event);
}
};
myWebView.setOnTouchListener(gestureListener);
}
class MyGestureDetector extends SimpleOnGestureListener {
@Override
public boolean onSingleTapConfirmed(MotionEvent e) {
myWebView.reload();
Log.i("", "Reload");
return super.onSingleTapConfirmed(e);
}
}
}
EDIT JAVA CODE : Second Way – I have tried this thing insted onTouchListener and that working fine for me.
public class MainActivity extends Activity {
WebView myWebView;
public static boolean flag = false;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
myWebView = new WebView(this);
myWebView.getSettings().setJavaScriptEnabled(true);
myWebView.loadUrl("file:///android_asset/chapters.html");
setContentView(myWebView);
myWebView.setWebViewClient(new WebViewClient() {
public void onPageFinished(WebView view, String url) {
if (url.contains("#") && flag == false) {
myWebView.loadUrl(url);
flag = true;
} else {
flag = false;
}
}
});
}
}
To Open Another HTML File’s Anchor Tag from One file
myWebView = new WebView(this);
myWebView.getSettings().setJavaScriptEnabled(true);
myWebView.loadUrl("file:///android_asset/1.htm");
myWebView.setWebViewClient(new WebViewClient() {
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
try{
chapter = url.substring(url.indexOf("#"),url.length());
url = url.substring(0,url.indexOf("#"));
}catch (Exception e) {
chapter = "";
}
myWebView.loadUrl(url);
return true;
}
public void onPageFinished(WebView view, String url) {
if (!chapter.equalsIgnoreCase("") && flag == false) {
myWebView.loadUrl(url+chapter);
flag = true;
} else {
flag = false;
}
}
});
setContentView(myWebView);
Answer：
Please try with this code . It works fine .
String html = "<html><body><p><a href='#C4'>See also Chapter 4</a></p><p><h2>Chapter 1</h2><p>This chapter explains ba bla bla</p><h2>Chapter 2</h2><p>This chapter explains ba bla bla</p><h2>Chapter 3</h2><p>This chapter explains ba bla bla</p><h2><a name='C4'>Chapter 4</a></h2><p>This chapter explains ba bla bla</p><h2>Chapter 5</h2><p>This chapter explains ba bla bla</p><h2>Chapter 6</h2><p>This chapter explains ba bla bla</p><h2>Chapter 7</h2><p>This chapter explains ba bla bla</p><h2>Chapter 8</h2><p>This chapter explains ba bla bla</p><h2>Chapter 9</h2><p>This chapter explains ba bla bla</p></body></html>";
String mime = "text/html";
String encoding = "utf-8";
final WebView myWebView = (WebView)this.findViewById(R.id.webView);
myWebView.getSettings().setJavaScriptEnabled(true);
myWebView.loadDataWithBaseURL("app:html", html, mime, encoding, null);
myWebView.setWebViewClient(new WebViewClient()
{
@Override
public void onPageFinished(WebView view, String url)
{
super.onPageFinished(view, "app:html");
view.loadDataWithBaseURL("app:html", html, mime, encoding, null);
}
});
Answer：
This problem happens on Android 4.0.3 and 4.0.4 devices: If you have a mobile web page (either in assets or loaded from the web) whose contents fill across the whole screen width, then some links like this:
<a href=... HTML links
…will not work! They will just fail to load the next page! It’s a bit strange.
The bug is documented here: http://code.google.com/p/android/issues/detail?id=929
Even though it was logged in 2009, it does still happen on Android 4.0.3/4.0.4 devices.
The solution is to not use:
android:layout_height="wrap_content on the WebView.
Replace it with:
android:layout_height="match_parent
Answer：
Try this simple 2-liner javascript
<html>
<body>
<head>
<script language="javascript">
function jump_top() {
location.href = "#top";
location.hash = "";
}
</script>
</head>
<body>
<a name="top"></a>
<br /><br /><br /><br />
...
<br />Now you are at the bottom of the page
<br />
<a onclick="jump_top()">To Top</a>
</body>
</html>
Tags: androidandroid, html, view, webview
