android - 如何使电子邮件地址可点击？

Question

我的申请中有一些文字说如果您需要额外的帮助，请给我们发电子邮件，这是电子邮件地址，等等。

但我希望他们能够单击电子邮件链接并打开他们的电子邮件客户端。那可能吗？或者这是不好的做法？

如果是合理的做法，怎么做？

Answer 1

这是一个非常合理的要求，Linkify课程会将每个电子邮件地址转换为适合您的链接。只需将autoLink属性添加到您的 XML：

<TextView
    ...
    android:autoLink="email" />

Answer 2

您可以通过在文本上使用 setOnClickListener 来使您的文本可点击

textView.setOnClickListener(new View.OnClickListener());

您可以通过使用 ACTION_SEND 创建新 Intent 来打开电子邮件客户端。Settype，电子邮件地址和主题如下：

Intent emailintent = new Intent(android.content.Intent.ACTION_SEND);
emailintent.setType("plain/text");
emailintent.putExtra(android.content.Intent.EXTRA_EMAIL,new String[] {"mailk@gmail.com" });
emailintent.putExtra(android.content.Intent.EXTRA_SUBJECT, "");
emailintent.putExtra(android.content.Intent.EXTRA_TEXT,"");
startActivity(Intent.createChooser(emailintent, "Send mail..."));

Answer 3

您需要在您的onClickListener:

Intent intent = new Intent(Intent.ACTION_SEND);
intent.setType("text/plain"); // send email as plain text
intent.putExtra(Intent.EXTRA_EMAIL, new String[] { "some@email.address" });
intent.putExtra(Intent.EXTRA_SUBJECT, "subject");
intent.putExtra(Intent.EXTRA_TEXT, "mail body");
startActivity(Intent.createChooser(intent, ""));

Answer 4

Please be aware of a little bug from API 24 onwards which makes the accepted solution not work if the local part of the email address has exactly 2 characters like "it@google.com".

See the issue: https://issuetracker.google.com/issues/64435698

Allegedly fixed already, but apparently not rolled out yet. (Don't you love it that they know about the issue and don't even bother to update the documentation accordingly? https://developer.android.com/reference/android/widget/TextView.html#attr_android:autoLink)

So unless you're sure that you're not dealing with such 2-letter email addresses, you should rather use the accepted approach from here for the time being:

TextView to send email when clicked

Take care to remove the autolink attribute from the TextView then.

Answer 5

The accepted answer may work for emails but if you want to detect different patterns like emails, contact numbers, weblink and set a separate on click implementations for these patterns I suggest you to use CustomClickableEmailPhoneTextview

Sample Code to use the library.

CustomPartialyClickableTextview customPartialyClickableTextview= (CustomPartialyClickableTextview) findViewById(R.id.textViewCustom);

                /**
                 * Create Objects For Click Patterns
                 */
                ClickPattern email=new ClickPattern();
                ClickPattern phone=new ClickPattern();
                ClickPattern weblink=new ClickPattern();

                /**
                 * set Functionality for what will happen on click of that pattern
                 * In this example pattern is email
                 */
                email.setOnClickListener(new ClickPattern.OnClickListener() {
                    @Override
                    public void onClick() {

                        Toast.makeText(MainActivity.this,"email clicked",Toast.LENGTH_LONG).show();


                    }
                });

                /**
                 * set Functionality for what will happen on click of that pattern
                 * In this example pattern is phone
                 */
                phone.setOnClickListener(new ClickPattern.OnClickListener() {
                    @Override
                    public void onClick() {
                        Toast.makeText(MainActivity.this,"phone clicked",Toast.LENGTH_LONG).show();

                    }
                });

                /**
                 * set Functionality for what will happen on click of that pattern
                 * In this example pattern is weblink
                 */
                weblink.setOnClickListener(new ClickPattern.OnClickListener() {
                    @Override
                    public void onClick() {
                        Toast.makeText(MainActivity.this,"website clicked",Toast.LENGTH_LONG).show();

                    }
                });

                /**
                 * set respective regex string to be used to identify patter
                 */
                email.setRegex("\\b[A-Z0-9._%+-]+@[A-Z0-9.-]+\\.[A-Z]{2,4}\\b"); // regex for email
                phone.setRegex("[1-9][0-9]{9,14}"); // regex for phone number
                weblink.setRegex("^(https?|ftp|file)://[-a-zA-Z0-9+&@#/%?=~_|!:,.;]*[-a-zA-Z0-9+&@#/%=~_|]"); // regex for weblink

                /**
                 * add click pattern to the custom textview - first parameter is tag for reference second parameter is ClickPattern object
                 */
                customPartialyClickableTextview.addClickPattern("email",email);
                customPartialyClickableTextview.addClickPattern("phone",phone);
                customPartialyClickableTextview.addClickPattern("weblink",weblink);