Android 如何设置文本视图的部分是可点击的

How to set the part of the text view is clickable

提问by naresh

I have the text "Android is a Software stack". In this text i want to set the "stack" text is clickable. in the sense if you click on that it will redirected to a new activity(not in the browser).

我有文字“ Android 是一个软件堆栈”。在本文中，我想设置“堆栈”文本是可点击的。从某种意义上说，如果您单击它，它将重定向到一个新活动（而不是在浏览器中）。

I tried but i am not getting.

我试过了，但我没有得到。

回答by dira

android.text.style.ClickableSpancan solve your problem.

android.text.style.ClickableSpan可以解决你的问题。

SpannableString ss = new SpannableString("Android is a Software stack");
ClickableSpan clickableSpan = new ClickableSpan() {
    @Override
    public void onClick(View textView) {
        startActivity(new Intent(MyActivity.this, NextActivity.class));
    }
    @Override
    public void updateDrawState(TextPaint ds) {
        super.updateDrawState(ds);
        ds.setUnderlineText(false);
    }
};
ss.setSpan(clickableSpan, 22, 27, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);

TextView textView = (TextView) findViewById(R.id.hello);
textView.setText(ss);
textView.setMovementMethod(LinkMovementMethod.getInstance());
textView.setHighlightColor(Color.TRANSPARENT);

In XML:

在 XML 中：

<TextView 
  ...
  android:textColorLink="@drawable/your_selector"
/>

回答by Phan Van Linh

My function for make multiple links inside TextView

我在内部建立多个链接的功能 TextView

fun TextView.makeLinks(vararg links: Pair<String, View.OnClickListener>) {
    val spannableString = SpannableString(this.text)
    for (link in links) {
        val clickableSpan = object : ClickableSpan() {
            override fun onClick(view: View) {
                Selection.setSelection((view as TextView).text as Spannable, 0)
                view.invalidate()
                link.second.onClick(view)
            }
        }
        val startIndexOfLink = this.text.toString().indexOf(link.first)
        spannableString.setSpan(clickableSpan, startIndexOfLink, startIndexOfLink + link.first.length,
                Spanned.SPAN_EXCLUSIVE_EXCLUSIVE)
    }
    this.movementMethod = LinkMovementMethod.getInstance() // without LinkMovementMethod, link can not click
    this.setText(spannableString, TextView.BufferType.SPANNABLE)
}

USING

使用

my_text_view.makeLinks(
        Pair("Terms of Service", View.OnClickListener {
            Toast.makeText(applicationContext, "Terms of Service Clicked", Toast.LENGTH_SHORT).show()
        }),
        Pair("Privacy Policy", View.OnClickListener {
            Toast.makeText(applicationContext, "Privacy Policy Clicked", Toast.LENGTH_SHORT).show()
        }))

XML

XML

<TextView
    android:id="@+id/my_text_view"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="Please accept Terms of Service and Privacy Policy"
    android:textColorHighlight="#f00" // background color when pressed
    android:textColorLink="#0f0"
    android:textSize="20sp" />

DEMO

演示

Reference

参考

Solution for clear the link highlight selection follow https://stackoverflow.com/a/19445108/5381331

清除链接高亮选择的解决方案遵循https://stackoverflow.com/a/19445108/5381331

回答by Imran Rana

You can use ClickableSpanas described in this post

您可以使用ClickableSpan的描述，在此岗位

Sample code:

示例代码：

TextView myTextView = new TextView(this);
String myString = "Some text [clickable]";
int i1 = myString.indexOf("[");
int i2 = myString.indexOf("]");
myTextView.setMovementMethod(LinkMovementMethod.getInstance());
myTextView.setText(myString, BufferType.SPANNABLE);
Spannable mySpannable = (Spannable)myTextView.getText();
ClickableSpan myClickableSpan = new ClickableSpan() {
   @Override
   public void onClick(View widget) { /* do something */ }
};
mySpannable.setSpan(myClickableSpan, i1, i2 + 1, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);

Reference

参考

回答by Tar?k Yurtlu

You can use sample code. You want to learn detail about ClickableSpan. Please check this documentaion

您可以使用示例代码。您想了解有关 ClickableSpan 的详细信息。请检查此文档

  SpannableString myString = new SpannableString("This is example");

            ClickableSpan clickableSpan = new ClickableSpan() {
                    @Override
                    public void onClick(View textView) {
                        ToastUtil.show(getContext(),"Clicked Smile ");
                    }
                };

        //For Click
         myString.setSpan(clickableSpan,startIndex,lastIndex,Spanned.SPAN_EXCLUSIVE_EXCLUSIVE)

        //For UnderLine
         myString.setSpan(new UnderlineSpan(),startIndex,lastIndex,0);

        //For Bold
        myString.setSpan(new StyleSpan(Typeface.BOLD),startIndex,lastIndex,0);

        //Finally you can set to textView. 

        TextView textView = (TextView) findViewById(R.id.txtSpan);
        textView.setText(myString);
        textView.setMovementMethod(LinkMovementMethod.getInstance());

回答by aldok

I made this helper method in case someone need start and end position from a String.

我做了这个辅助方法，以防有人需要从字符串开始和结束位置。

public static TextView createLink(TextView targetTextView, String completeString,
    String partToClick, ClickableSpan clickableAction) {

    SpannableString spannableString = new SpannableString(completeString);

    // make sure the String is exist, if it doesn't exist
    // it will throw IndexOutOfBoundException
    int startPosition = completeString.indexOf(partToClick);
    int endPosition = completeString.lastIndexOf(partToClick) + partToClick.length();

    spannableString.setSpan(clickableAction, startPosition, endPosition,
        Spanned.SPAN_INCLUSIVE_EXCLUSIVE);

    targetTextView.setText(spannableString);
    targetTextView.setMovementMethod(LinkMovementMethod.getInstance());

    return targetTextView;
}

And here is how you use it

这是你如何使用它

private void initSignUp() {
    String completeString = "New to Reddit? Sign up here.";
    String partToClick = "Sign up";
    ClickableTextUtil
        .createLink(signUpEditText, completeString, partToClick,
            new ClickableSpan() {
                @Override
                public void onClick(View widget) {
                    // your action
                    Toast.makeText(activity, "Start Sign up activity",
                        Toast.LENGTH_SHORT).show();
                }

                @Override
                public void updateDrawState(TextPaint ds) {
                    super.updateDrawState(ds);
                    // this is where you set link color, underline, typeface etc.
                    int linkColor = ContextCompat.getColor(activity, R.color.blumine);
                    ds.setColor(linkColor);
                    ds.setUnderlineText(false);
                }
            });
}

回答by Ather

 t= (TextView) findViewById(R.id.PP1);

 t.setText(Html.fromHtml("<bThis is normal text </b>" +
                "<a href=\"http://www.xyz-zyyx.com\">This is cliclable text</a> "));
 t.setMovementMethod(LinkMovementMethod.getInstance());

回答by Dan Bray

Here is a Kotlinmethod to make parts of a TextViewclickable:

这是一种Kotlin使部分TextView可点击的方法：

private fun makeTextLink(textView: TextView, str: String, underlined: Boolean, color: Int?, action: (() -> Unit)? = null) {
    val spannableString = SpannableString(textView.text)
    val textColor = color ?: textView.currentTextColor
    val clickableSpan = object : ClickableSpan() {
        override fun onClick(textView: View) {
            action?.invoke()
        }
        override fun updateDrawState(drawState: TextPaint) {
            super.updateDrawState(drawState)
            drawState.isUnderlineText = underlined
            drawState.color = textColor
        }
    }
    val index = spannableString.indexOf(str)
    spannableString.setSpan(clickableSpan, index, index + str.length, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE)
    textView.text = spannableString
    textView.movementMethod = LinkMovementMethod.getInstance()
    textView.highlightColor = Color.TRANSPARENT
}

It can be called multiple times to create several links within a TextView:

可以多次调用它以在 TextView 中创建多个链接：

makeTextLink(myTextView, str, false, Color.RED, action = { Log.d("onClick", "link") })
makeTextLink(myTextView, str1, true, null, action = { Log.d("onClick", "link1") })

回答by Rammohan Raja

Kotlin Versionof Phan Van Linh's answer.

Phan Van Linh 的回答的Kotlin 版本。

Please note it has some minor modifications.

请注意它有一些小的修改。

fun makeLinks(textView: TextView, links: Array<String>, clickableSpans: Array<ClickableSpan>) {
    val spannableString = SpannableString(textView.text)

    for (i in links.indices) {
        val clickableSpan = clickableSpans[i]
        val link = links[i]

        val startIndexOfLink = textView.text.indexOf(link)

        spannableString.setSpan(clickableSpan, startIndexOfLink, startIndexOfLink + link.length,
                Spanned.SPAN_EXCLUSIVE_EXCLUSIVE)
    }

    textView.movementMethod = LinkMovementMethod.getInstance()
    textView.setText(spannableString, TextView.BufferType.SPANNABLE)
}

fun setupClickableTextView() {
    val termsOfServicesClick = object : ClickableSpan() {
        override fun onClick(p0: View?) {
            Toast.makeText(applicationContext, "ToS clicked", Toast.LENGTH_SHORT).show()
        }
    }

    val privacyPolicyClick = object : ClickableSpan() {
        override fun onClick(p0: View?) {
            Toast.makeText(applicationContext, "PP clicked", Toast.LENGTH_SHORT).show()
        }
    }

    makeLinks(termsTextView, arrayOf("terms", "privacy policy"), arrayOf(termsOfServicesClick, privacyPolicyClick))
}

回答by android_developer

For bold,

为了大胆，

mySpannable.setSpan(new StyleSpan(Typeface.BOLD),termStart,termStop,Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);

回答by Giorgio Daino

I would suggest a different approach that I think requires less code and is more "localization-friendly".

我会建议一种不同的方法，我认为它需要更少的代码并且更“本地化友好”。

Supposing that your destination activity is called "ActivityStack", define in the manifest an intent filter for it with a custom scheme (e.g. "myappscheme") in AndroidManifest.xml:

假设您的目标活动称为“ActivityStack”，请在清单中使用 AndroidManifest.xml 中的自定义方案（例如“myappscheme”）为其定义一个意图过滤器：

<activity
    android:name=".ActivityStack">
    <intent-filter>
        <action android:name="android.intent.action.VIEW" />
        <category android:name="android.intent.category.DEFAULT" />
        <data android:host="stack"/>
        <data android:scheme="myappscheme" />
    </intent-filter>
</activity>

Define the TextView without any special tag (it is important to NOT use the "android:autoLink" tag, see: https://stackoverflow.com/a/20647011/1699702):

定义没有任何特殊标签的 TextView（重要的是不要使用“android:autoLink”标签，请参阅：https://stackoverflow.com/a/20647011/1699702 ）：

<TextView
    android:id="@+id/stackView"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="@string/stack_string" />

then use a link with custom scheme and host in the text of the TextView as (in String.xml):

然后在 TextView 的文本中使用带有自定义方案和主机的链接（在 String.xml 中）：

<string name="stack_string">Android is a Software <a href="myappscheme://stack">stack</a></string>

and "activate" the link with setMovementMethod() (in onCreate() for activities or onCreateView() for fragments):

并使用 setMovementMethod() 来“激活”链接（在 onCreate() 中用于活动或在 onCreateView() 中用于片段）：

TextView stack = findViewById(R.id.stackView);
stack.setMovementMethod(LinkMovementMethod.getInstance());

This will open the stack activity with a tap on the "stack" word.

这将通过点击“堆栈”字样打开堆栈活动。