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テキストビューの一部を設定する方法はクリック可能です

「Androidはソフトウェアスタックです」というテキストがあります。このテキストでは、「stack」テキストをクリック可能に設定します。ある意味で、それをクリックすると、ブラウザではなく新しいアクティビティにリダイレクトされます。

試しましたが、うまくいきません。

androidstringtextviewclickablespan
178
naresh

Android.text.style.ClickableSpanは問題を解決できます。

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);

XMLの場合

<TextView 
  ...
  Android:textColorLink="@drawable/your_selector"
/>
479
Dipesh Rathod

TextView内に複数のリンクを作成するための私の関数

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)
}

を使用

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

<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

参照

リンクハイライトの選択をクリアするための解決策は https://stackoverflow.com/a/19445108/5381331 に従います

61
Phan Van Linh

このセクションで説明されているように、 ClickableSpan を使用できます post

サンプルコード：

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);

参照

32
Imran Rana

サンプルコードを使用できます。 ClickableSpanの詳細を知りたい。チェックしてくださいthis documentaion

  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());
11
Tarık Yurtlu

誰かが文字列から開始位置と終了位置を必要とする場合に備えて、このヘルパーメソッドを作成しました。

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;
}

そして、これがあなたの使い方です

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);
                }
            });
}
9
aldok
 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());
7
Ather

Kotlinバージョン Phan Van Linhの答え。

いくつかのマイナーな修正があることに注意してください。

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))
}
3
Rammohan Raja

Kotlinの一部をクリック可能にするTextViewメソッドを次に示します。

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
}

TextView内に複数のリンクを作成するために複数回呼び出すことができます。

makeTextLink(myTextView, str, false, Color.RED, action = { Log.d("onClick", "link") })
makeTextLink(myTextView, str1, true, null, action = { Log.d("onClick", "link1") })
2
Dan Bray

太字の場合、

mySpannable.setSpan(new StyleSpan(Typeface.BOLD),termStart,termStop,Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
1
mustafasevgi

これは、リンク/テキスト/画像のクリックを検出するための私のMovementMethodです。変更されたLinkMovementMethod。

import Android.text.Layout;
import Android.text.NoCopySpan;
import Android.text.Selection;
import Android.text.Spannable;
import Android.text.method.ScrollingMovementMethod;
import Android.text.style.ClickableSpan;
import Android.text.style.ImageSpan;
import Android.text.style.URLSpan;
import Android.view.KeyEvent;
import Android.view.MotionEvent;
import Android.view.View;
import Android.widget.TextView;

public class ClickMovementMethod extends ScrollingMovementMethod {
private Object FROM_BELOW = new NoCopySpan.Concrete();

private static final int CLICK = 1;
private static final int UP = 2;
private static final int DOWN = 3;

private Listener listener;

public void setListener(Listener listener) {
    this.listener = listener;
}

@Override
public boolean canSelectArbitrarily() {
    return true;
}

@Override
protected boolean handleMovementKey(TextView widget, Spannable buffer, int keyCode,
                                    int movementMetaState, KeyEvent event) {
    switch (keyCode) {
        case KeyEvent.KEYCODE_DPAD_CENTER:
        case KeyEvent.KEYCODE_ENTER:
            if (KeyEvent.metaStateHasNoModifiers(movementMetaState)) {
                if (event.getAction() == KeyEvent.ACTION_DOWN &&
                        event.getRepeatCount() == 0 && action(CLICK, widget, buffer)) {
                    return true;
                }
            }
            break;
    }
    return super.handleMovementKey(widget, buffer, keyCode, movementMetaState, event);
}

@Override
protected boolean up(TextView widget, Spannable buffer) {
    if (action(UP, widget, buffer)) {
        return true;
    }

    return super.up(widget, buffer);
}

@Override
protected boolean down(TextView widget, Spannable buffer) {
    if (action(DOWN, widget, buffer)) {
        return true;
    }

    return super.down(widget, buffer);
}

@Override
protected boolean left(TextView widget, Spannable buffer) {
    if (action(UP, widget, buffer)) {
        return true;
    }

    return super.left(widget, buffer);
}

@Override
protected boolean right(TextView widget, Spannable buffer) {
    if (action(DOWN, widget, buffer)) {
        return true;
    }

    return super.right(widget, buffer);
}

private boolean action(int what, TextView widget, Spannable buffer) {
    Layout layout = widget.getLayout();

    int padding = widget.getTotalPaddingTop() +
            widget.getTotalPaddingBottom();
    int areatop = widget.getScrollY();
    int areabot = areatop + widget.getHeight() - padding;

    int linetop = layout.getLineForVertical(areatop);
    int linebot = layout.getLineForVertical(areabot);

    int first = layout.getLineStart(linetop);
    int last = layout.getLineEnd(linebot);

    ClickableSpan[] candidates = buffer.getSpans(first, last, URLSpan.class);

    int a = Selection.getSelectionStart(buffer);
    int b = Selection.getSelectionEnd(buffer);

    int selStart = Math.min(a, b);
    int selEnd = Math.max(a, b);

    if (selStart < 0) {
        if (buffer.getSpanStart(FROM_BELOW) >= 0) {
            selStart = selEnd = buffer.length();
        }
    }

    if (selStart > last)
        selStart = selEnd = Integer.MAX_VALUE;
    if (selEnd < first)
        selStart = selEnd = -1;

    switch (what) {
        case CLICK:
            if (selStart == selEnd) {
                return false;
            }

            if (listener != null) {
                URLSpan[] link = buffer.getSpans(selStart, selEnd, URLSpan.class);
                if (link.length >= 1) {
                    listener.onClick(link[0].getURL());
                } else {
                    ImageSpan[] image = buffer.getSpans(selStart, selEnd, ImageSpan.class);
                    if (image.length >= 1) {
                        listener.onImageClicked(image[0].getSource());
                    } else {
                        listener.onTextClicked();
                    }
                }
            }
            break;

        case UP:
            int beststart, bestend;

            beststart = -1;
            bestend = -1;

            for (int i = 0; i < candidates.length; i++) {
                int end = buffer.getSpanEnd(candidates[i]);

                if (end < selEnd || selStart == selEnd) {
                    if (end > bestend) {
                        beststart = buffer.getSpanStart(candidates[i]);
                        bestend = end;
                    }
                }
            }

            if (beststart >= 0) {
                Selection.setSelection(buffer, bestend, beststart);
                return true;
            }

            break;

        case DOWN:
            beststart = Integer.MAX_VALUE;
            bestend = Integer.MAX_VALUE;

            for (int i = 0; i < candidates.length; i++) {
                int start = buffer.getSpanStart(candidates[i]);

                if (start > selStart || selStart == selEnd) {
                    if (start < beststart) {
                        beststart = start;
                        bestend = buffer.getSpanEnd(candidates[i]);
                    }
                }
            }

            if (bestend < Integer.MAX_VALUE) {
                Selection.setSelection(buffer, beststart, bestend);
                return true;
            }

            break;
    }

    return false;
}

@Override
public boolean onTouchEvent(TextView widget, Spannable buffer,
                            MotionEvent event) {
    int action = event.getAction();

    if (action == MotionEvent.ACTION_UP ||
            action == MotionEvent.ACTION_DOWN) {
        int x = (int) event.getX();
        int y = (int) event.getY();

        x -= widget.getTotalPaddingLeft();
        y -= widget.getTotalPaddingTop();

        x += widget.getScrollX();
        y += widget.getScrollY();

        Layout layout = widget.getLayout();
        int line = layout.getLineForVertical(y);
        int off = layout.getOffsetForHorizontal(line, x);

        URLSpan[] link = buffer.getSpans(off, off, URLSpan.class);

        if (action == MotionEvent.ACTION_UP) {
            if (listener != null) {
                if (link.length >= 1) {
                    listener.onClick(link[0].getURL());
                } else {
                    ImageSpan[] image = buffer.getSpans(off, off, ImageSpan.class);
                    if (image.length >= 1) {
                        listener.onImageClicked(image[0].getSource());
                    } else if (Selection.getSelectionStart(buffer) == Selection.getSelectionEnd(buffer)) {
                        listener.onTextClicked();
                    }
                }
            }
        }

        if (action == MotionEvent.ACTION_DOWN && link.length != 0) {
            Selection.setSelection(buffer,
                    buffer.getSpanStart(link[0]),
                    buffer.getSpanEnd(link[0]));
            return true;
        }

        if (link.length == 0) {
            Selection.removeSelection(buffer);
        }
    }

    return super.onTouchEvent(widget, buffer, event);
}

@Override
public void initialize(TextView widget, Spannable text) {
    Selection.removeSelection(text);
    text.removeSpan(FROM_BELOW);
}

@Override
public void onTakeFocus(TextView view, Spannable text, int dir) {
    Selection.removeSelection(text);

    if ((dir & View.FOCUS_BACKWARD) != 0) {
        text.setSpan(FROM_BELOW, 0, 0, Spannable.SPAN_POINT_POINT);
    } else {
        text.removeSpan(FROM_BELOW);
    }
}

public interface Listener {

    void onClick(String clicked);

    void onTextClicked();

    void onImageClicked(String source);

}

}
0
Ufkoku

必要なコードが少なく、より「ローカライズフレンドリー」だと思う別のアプローチをお勧めします。

宛先アクティビティが「ActivityStack」と呼ばれる場合、AndroidManifest.xmlでカスタムスキーム（「myappscheme」など）を使用してマニフェストでインテントフィルターを定義します。

<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>

特別なタグなしでTextViewを定義します（「Android：autoLink」タグを使用しないことが重要です。参照： 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" />

次に、TextViewのテキストで（String.xmlで）カスタムスキームとホストを使用したリンクを使用します。

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

setMovementMethod（）（アクティビティの場合はonCreate（）、フラグメントの場合はonCreateView（））を使用してリンクを「アクティブ化」します。

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

これにより、「スタック」Wordをタップしてスタックアクティビティが開きます。

0
fledge

この方法でクリック可能な値を設定できます

public void setClickableString(String clickableValue, String wholeValue, TextView yourTextView){
    String value = wholeValue;
    SpannableString spannableString = new SpannableString(value);
    int startIndex = value.indexOf(clickableValue);
    int endIndex = startIndex + clickableValue.length();
    spannableString.setSpan(new ClickableSpan() {
                                @Override
                                public void updateDrawState(TextPaint ds) {
                                    super.updateDrawState(ds);
                                    ds.setUnderlineText(false); // <-- this will remove automatic underline in set span
                                }

                                @Override
                                public void onClick(View widget) {
                                    // do what you want with clickable value
                                }
                            }, startIndex, endIndex, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
    yourTextView.setText(spannableString);
    yourTextView.setMovementMethod(LinkMovementMethod.getInstance()); // <-- important, onClick in ClickableSpan won't work without this
}

これはそれを使用する方法です：

TextView myTextView = findViewById(R.id.myTextView);
setClickableString("stack", "Android is a Software stack", myTextView);
0
shinta