我正在WebView中加载一个网页。网页中有一个链接,桌面端会下载文件,但在应用程序中,该链接应该显示一个Toast提示该链接已被禁用。
我不确定如何在链接被点击时获取锚标签的href值。
<a class="btn btn-primary" download="http://xx.xxx.com/wp-content/uploads/2015/11/abc-27-15.mp3" href="http://xx.xxx.com/wp-content/uploads/2015/11/abc-27-15.mp3">
<i class="fa fa-download"></i> Download Audio</a>
有人可以分享一些想法或任何示例代码,以解决此问题。
编辑:1
这是我目前正在做的事情:
private static final String URL = "http://xx.xxx.com/wp-content/uploads/";
webView.setOnTouchListener(new View.OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
if (event.getAction() == MotionEvent.ACTION_DOWN) {
WebView.HitTestResult hr = ((WebView) v).getHitTestResult();
String extra = hr.getExtra();
if (extra != null && extra.startsWith(URL) && extra.endsWith(".mp3")) {
Log.d("WebviewActivity", "Extra: " + extra);
Log.d("WebviewActivity", "Contains URL");
return true;
}
}
return false;
}
});
这种方法存在的问题是:当我点击链接时,会得到额外的网址。这个过程一直正常运行。但是,从下一次开始,在 webview 上无论我在哪里点击,都会返回相同的额外内容。所以,即使我在点击链接后点击图像,我也会在额外内容中得到相同的链接。不确定我是否做错了什么,或者这是否是正确的方法。如果需要任何详细信息,请告诉我。
编辑:2
private Handler mHandler = new Handler() {
@Override
public void handleMessage(Message msg) {
// Get link-URL.
String url = (String) msg.getData().get("url");
// Do something with it.
if (url != null) {
Log.d(TAG, "URL: "+url);
}
}
};
webView.setOnTouchListener(new View.OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
if (event.getAction() == MotionEvent.ACTION_DOWN) {
WebView.HitTestResult hr = ((WebView) v).getHitTestResult();
if (hr.getType() == WebView.HitTestResult.SRC_ANCHOR_TYPE) {
Message msg = mHandler.obtainMessage();
webView.requestFocusNodeHref(msg);
}
}
return false;
}
});
webView.loadUrl(mUrl);
}
现在,我获得了上一个action_down事件中被点击的URL。如何获取当前URL?
编辑3(尝试使用WebviewClient:)
private class MyWebViewClient extends WebViewClient {
private static final String URL = "xx.xxx.com/wp-content/uploads/";
@Override
public void onPageStarted(WebView view, String url, Bitmap favicon) {
super.onPageStarted(view, url, favicon);
if (!isFinishing())
mProgressDialog.show();
}
@Override
public void onPageFinished(WebView view, String url) {
super.onPageFinished(view, url);
mProgressDialog.dismiss();
}
@Override
public void onReceivedError(WebView view, int errorCode,
String description, String failingUrl) {
super.onReceivedError(view, errorCode, description, failingUrl);
Toast.makeText(WebviewActivity.this,
"Please check your internet " + "connection and try again",
Toast.LENGTH_SHORT).show();
}
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
Log.d("xxx", "Url: " + url);
if(url.contains(URL)) {
Log.d("xxx", "Url Contains: " + URL);
return true;
}
return false;
}
}
mMyWebViewClient = new MyWebViewClient();
webView.setWebViewClient(mMyWebViewClient);
当链接被点击时,在logcat中输出:
03-01 15:38:19.402 19626-19626/com.xx.xxx D/cr_Ime: [ImeAdapter.java:553] focusedNodeChanged: isEditable [false]
03-01 15:38:19.428 19626-19626/com.xx.xxx D/cr_Ime: [ImeAdapter.java:253] updateKeyboardVisibility: type [0->0], flags [0], show [true],
03-01 15:38:19.428 19626-19626/com.xx.xxx D/cr_Ime: [ImeAdapter.java:326] hideKeyboard
03-01 15:38:19.429 19626-19626/com.xx.xxx D/cr_Ime: [InputMethodManagerWrapper.java:56] isActive: true
03-01 15:38:19.429 19626-19626/com.xx.xxx D/cr_Ime: [InputMethodManagerWrapper.java:65] hideSoftInputFromWindow