格式的TextView的样子链接 [英] Format TextView to look like link

问题描述

我一直在使用的android：自动链接就好格式化链接等，但我需要使用安卓的onClick ，所以我不能使用，在这种情况下。其理由是，我觉得它太容易点击意外的电话号码，所以我要去拦截点击了确认对话框，然后调用。

I've been using the android:autoLink just fine for formatting links and such, but I need to use android:onClick so I can't use that in this case. The reasoning is that I find it too easy to click on a phone number accidentally, so I'm going to intercept the click with a confirmation Dialog and then call.

有没有一种简单的方法仍然使电话号码我的TextView 看起来像一个正常的可点击的链接？我捅围绕Android源$ C ​​$ C，但找不到任何特定的风格，我参考一下。

Is there an easy way to still make the phone number in my TextView look like a normal clickable link? I poked around the Android source code, but couldn't find any particular style for me to reference.

推荐答案

Linkify是一个伟大的阶级，它会寻找复杂的模式，如网址，电话号码等，并把他们变成URLSpans。而不是重新编写现有经常EX pressions我延长了URLSpan类，并创建升级方法的只有的电话URLSpans到自定义URLSpan一个确认对话框。

Linkify is a great class, it hunts for complex patterns like URLs, phone numbers, etc and turns them into URLSpans. Rather than re-write the existing regular expressions I extended the URLSpan class and created a method to upgrade only the telephone URLSpans to a custom URLSpan with a confirmation dialog.

首页我的扩展URLSpan类，ConfirmSpan：

First my extended URLSpan class, ConfirmSpan:

class ConfirmSpan extends URLSpan {
    AlertDialog dialog;
    View mView;

    public ConfirmSpan(URLSpan span) {
        super(span.getURL());
    }

    @Override
    public void onClick(View widget) {
        mView = widget;

        if(dialog == null) {
            AlertDialog.Builder mBuilder = new AlertDialog.Builder(widget.getContext());
            mBuilder.setMessage("Do you want to call: " + getURL().substring(4) + "?");
            mBuilder.setNegativeButton("No", new DialogInterface.OnClickListener() {
                public void onClick(DialogInterface dialog, int id) {
                    dialog.cancel();
                }
            })
            .setPositiveButton("Yes", new DialogInterface.OnClickListener() {
                public void onClick(DialogInterface dialog, int id) {
                    openURL();
                }
            });
            dialog = mBuilder.create();
        }
        dialog.show();
    }

    public void openURL() {
        super.onClick(mView);
    }
}

下一步以换出不同的跨度类方法：

Next the method to swap out the different span classes:

private void swapSpans(TextView textView) {
    Spannable spannable = (Spannable) textView.getText();
    URLSpan[] spans = textView.getUrls();
    for(URLSpan span : spans) {
        if(span.getURL().toString().startsWith("tel:")) {
            spannable.setSpan(new ConfirmSpan(span), spannable.getSpanStart(span), spannable.getSpanEnd(span), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
            spannable.removeSpan(span);
        }
    }
}

最后所有你需要做的就是创建一个自动链接属性一个TextView：

Finally all you need to do is create a TextView with the autoLink attribute:

android:autoLink="phone"

和记得调用 swapSpans（）方法。要知道，我写了这个好玩，有可能是这样做的其他方法，但我不知道他们的时刻。希望这有助于！

And remember to call the swapSpans() method. Understand that I wrote this for fun, there may be other methods of doing this but I am unaware of them at the moment. Hope this helps!

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