So I got an exception from my app as follows:
android.content.ActivityNotFoundException: No Activity found to handle Intent { act=android.intent.action.VIEW dat=http://google.com (has extras) }
at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1512)
at android.app.Instrumentation.execStartActivity(Instrumentation.java:1384)
at android.app.Activity.startActivityForResult(Activity.java:3248)
at android.support.v4.app.FragmentActivity.startActivityForResult(FragmentActivity.java:839)
at android.app.Activity.startActivity(Activity.java:3359)
at android.text.style.URLSpan.onClick(URLSpan.java:62)
at android.text.method.LinkMovementMethod.onTouchEvent(LinkMovementMethod.java:212)
at android.widget.TextView.onTouchEvent(TextView.java:8704)
at android.view.View.dispatchTouchEvent(View.java:5556)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:1957)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1726)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:1957)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1726)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:1957)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1726)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:1957)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1726)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:1957)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1726)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:1957)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:1726)
at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:1940)
at com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1390)
at android.app.Activity.dispatchTouchEvent(Activity.java:2414)
at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:1888)
at android.view.View.dispatchPointerEvent(View.java:5736)
at android.view.ViewRootImpl.deliverPointerEvent(ViewRootImpl.java:3017)
at android.view.ViewRootImpl.handleMessage(ViewRootImpl.java:2582)
at android.view.ViewRootImpl.processInputEvents(ViewRootImpl.java:887)
at android.view.ViewRootImpl.handleMessage(ViewRootImpl.java:2591)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:4697)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:787)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:554)
at dalvik.system.NativeStart.main(Native Method)
This doesn't lead to my code. I assume this happens when user clicks URL in the text (and there are texts with URLs in app). What it's about? How could it be that Android device doesn't have a browser? How to bypass this or at least to catch (I need URLs be clickable in text)?
UPDATE
Actually I found that this exception happens in TextView which is intended to be an empty list view stub:
listView = (ListView) findViewById(R.id.listView);
// empty pass list with clickable url inside
final TextView listEmptyView = (TextView) findViewById(R.id.txtNoPasses);
listEmptyView.setMovementMethod(LinkMovementMethod.getInstance());
listView.setEmptyView(listEmptyView);
So I tried this (following CommonsWare's article) but my URL remains completely unclickable in this case:
listView = (ListView) findViewById(R.id.listView);
// empty pass list with clickable url inside
final TextView listEmptyView = (TextView) findViewById(R.id.txtNoPasses);
fixTextView(listEmptyView);
listView.setEmptyView(listEmptyView);
}
private void fixTextView(TextView textView) {
final SpannableString current = new SpannableString(textView.getText());
final URLSpan[] spans = current.getSpans(0, current.length(), URLSpan.class);
int start, end;
for (URLSpan span : spans) {
start = current.getSpanStart(span);
end = current.getSpanEnd(span);
current.removeSpan(span);
current.setSpan(new DefensiveURLSpan(span.getURL()), start, end, 0);
}
}
private static class DefensiveURLSpan extends URLSpan {
public DefensiveURLSpan(String url) {
super(url);
}
@Override
public void onClick(View widget) {
try {
android.util.Log.d(getClass().getSimpleName(), "Got here!");
super.onClick(widget);
}
catch (ActivityNotFoundException e) {
// do something useful here
// android.text.SpannedString cannot be cast to android.text.SpannableString
}
}
}
And TextView:
<TextView
android:id="@+id/txtNoPasses"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:visibility="gone"
android:gravity="center"
android:padding="15dp"
android:text="@string/no_passes"
android:textAppearance="?android:attr/textAppearanceMedium"/>
And no_passes string is following:
<string name="no_passes">Currently you have no cards to use.\n<a href="http://cardz.website.com">You could add some cards from our website</a></string>
I assume that this is a TextView with android:autolink set, or that otherwise displays HTML (for example, using Html.fromHtml()).
The problems is that this creates URLSpan instances for embedded URIs, and this class "blindly" calls startActivity() with the supplied URI. This crashes whenever the URI does not match with any registered activity. For "http" URLS this can happen when the device doesn't have a browser application, or (more likely) when using a restricted profile that blocks access to it.
The problem and its solution is well explained in this CommonsWare post. You can replace the URLSpan instances with a custom derived class that intercepts onClick() to avoid the exception.
See also this answer for a related issue.