android – 如何在使用LinkMovementMethod时捕获异常(ActivityNotFoundException)

我目前有一个带有一些 HTML电话号码和网址的TextView.

我注意到我们可以使用setMovementMethod使这些链接可以点击：

tv.setText("Phone number is: [phone] and url is http://www.blabla.com");
tv.setMovementMethod(LinkMovementMethod.getInstance());

这非常有效,但在某些设备上,它会因ActivityNotFoundException而崩溃,这是非常难以理解的. (见下面的代码)

这些问题出现在我的开发者控制台中,我无法重现它们.

我面临的一个大问题是我无法在我的活动中尝试/捕获代码,因为点击是由LinkMovementMethod处理的

关于如何避免此类错误的任何想法？

android.content.ActivityNotFoundException: No Activity found to handle Intent { act=android.intent.action.VIEW dat=www.vlaamsbrabant.be/zoutleeuw (has extras) }
    at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1408)
    at android.app.Instrumentation.execStartActivity(Instrumentation.java:1378)
    at android.app.Activity.startActivityForResult(Activity.java:2817)
    at android.support.v4.app.FragmentActivity.startActivityForResult(FragmentActivity.java:817)
    at android.app.Activity.startActivity(Activity.java:2923)
    at android.text.style.URLSpan.onClick(URLSpan.java:62)
    at android.text.method.LinkMovementMethod.onTouchEvent(LinkMovementMethod.java:216)
    at android.widget.TextView.onTouchEvent(TextView.java:6788)
    at android.view.View.dispatchTouchEvent(View.java:3766)
    at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:936)
    at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:936)
    at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:936)
    at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:936)
    at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:936)
    at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:936)
    at com.android.internal.policy.impl.PhoneWindow$DecorView.superdispatchTouchEvent(PhoneWindow.java:1896)
    at com.android.internal.policy.impl.PhoneWindow.superdispatchTouchEvent(PhoneWindow.java:1159)
    at android.app.Activity.dispatchTouchEvent(Activity.java:2086)
    at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:1880)
    at android.view.ViewRoot.handleMessage(ViewRoot.java:1811)
    at android.os.Handler.dispatchMessage(Handler.java:99)
    at android.os.Looper.loop(Looper.java:123)
    at android.app.ActivityThread.main(ActivityThread.java:4627)
    at java.lang.reflect.Method.invokeNative(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:521)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:858)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
    at dalvik.system.NativeStart.main(Native Method)

解决方法

您始终可以只扩展LinkMovementMethod并在那里捕获错误.

就像是：

private class MovementCheck extends LinkMovementMethod {

    @Override
    public boolean onTouchEvent( TextView widget,Spannable buffer,MotionEvent event ) {
        try {
            return super.onTouchEvent( widget,buffer,event ) ;
        } catch( Exception ex ) {
            Toast.makeText( MainActivity.this,"Could not load link",Toast.LENGTH_LONG ).show();
            return true;
        }
    }

}

如果没有应用程序设置来处理意图,将显示错误消息.

另一种选择是使用this question中的方法提前确定是否准备好处理链接的任何内容.