DecoratableTextView

import android.content.Context;
import android.graphics.Color;
import android.graphics.Typeface;
import android.text.SpannableString;
import android.text.Spanned;
import android.text.TextPaint;
import android.text.method.LinkMovementMethod;
import android.text.style.CharacterStyle;
import android.text.style.ClickableSpan;
import android.util.AttributeSet;
import android.view.ActionMode;
import android.view.Menu;
import android.view.MenuItem;
import android.view.MotionEvent;
import android.view.View;
import android.widget.TextView;
import android.widget.Toast;

/**
 * Created by sangcomz on 4/26/16.
 */
public class DecoratableTextView extends TextView implements android.view.ActionMode.Callback {


    @Override
    protected void onAttachedToWindow() {
        super.onAttachedToWindow();
        setMovementMethod(LinkMovementMethod.getInstance());
    }

    public DecoratableTextView(final Context context) {
        super(context);
    }

    public DecoratableTextView(final Context context, final AttributeSet attrs) {
        super(context, attrs);
    }

    public DecoratableTextView(final Context context, final AttributeSet attrs, final int defStyle) {
        super(context, attrs, defStyle);
    }

    @Override
    public boolean dispatchTouchEvent(MotionEvent event) {
        // FIXME simple workaround to https://code.google.com/p/android/issues/detail?id=191430
        if (event.getActionMasked() == MotionEvent.ACTION_DOWN) {
            final CharSequence text = getText();
            setText(null);
            setText(text);
        }
        return super.dispatchTouchEvent(event);
    }

    public void setDecoratable(boolean isDecoratable) {
        setTextIsSelectable(isDecoratable);
    }

    public void setAnswerText(int start, int length) {
        StringBuilder answerText = new StringBuilder(getText());
        for (int i = start; i < start + length; i++) {
            answerText.setCharAt(i, '_');
        }

        setText(answerText);
    }

    public void setHighlightText(int start, int end) {
        SpannableString str = new SpannableString(getText());
        str.setSpan(new HighLightText(),
                start,
                end,
                Spanned.SPAN_EXCLUSIVE_INCLUSIVE);

        setText(str);
    }

    public void setUnderlineText(int start, int end) {
        SpannableString str = new SpannableString(getText());

        str.setSpan(new UnderlineText(),
                start,
                end,
                Spanned.SPAN_INCLUSIVE_INCLUSIVE);

        setText(str);
    }

    public void setClearText(int start, int end) {
        SpannableString str = new SpannableString(getText());

        CharacterStyle[] styleSpans = str.getSpans(start, end, CharacterStyle.class);
        for (CharacterStyle span : styleSpans) {
            if (!(span instanceof WordText))
                str.removeSpan(span);
        }
        setText(str);
    }

    public void setWordText(Context context, int start, int length) {
        SpannableString str = new SpannableString(getText());
        str.setSpan(new WordText(context),
                start,
                start + length,
                Spanned.SPAN_INCLUSIVE_EXCLUSIVE);
        setText(str);
    }

    @Override
    public boolean onCreateActionMode(ActionMode mode, Menu menu) {
        // Remove the "select all" option
        menu.removeItem(android.R.id.selectAll);
        // Remove the "cut" option
        menu.removeItem(android.R.id.cut);
        // Remove the "copy all" option
        menu.removeItem(android.R.id.copy);
        return true;

    }




    public class HighLightText extends ClickableSpan {
        @Override
        public void updateDrawState(TextPaint ds) {
            ds.setColor(ds.linkColor);
            ds.bgColor = Color.GREEN;
            ds.setARGB(255, 255, 255, 255);
        }


        @Override
        public void onClick(View widget) {
            TextView tv = (TextView) widget;
            Spanned s = (Spanned) tv.getText();
            int start = s.getSpanStart(this);
            int end = s.getSpanEnd(this);
            String theWord = s.subSequence(start, end).toString();
        }
    }

    public class UnderlineText extends ClickableSpan {
        @Override
        public void updateDrawState(TextPaint ds) {
            ds.setUnderlineText(true);
        }

        @Override
        public void onClick(View widget) {
            TextView tv = (TextView) widget;
            Spanned s = (Spanned) tv.getText();
            int start = s.getSpanStart(this);
            int end = s.getSpanEnd(this);
            String theWord = s.subSequence(start, end).toString();
        }
    }

    public class WordText extends ClickableSpan {
        Context context;

        public WordText(Context context) {
            this.context = context;
        }

        @Override
        public void updateDrawState(TextPaint ds) {
            ds.setARGB(255, 51, 51, 51);
            ds.setTypeface(Typeface.DEFAULT_BOLD);
        }

        @Override
        public void onClick(View widget) {
            TextView tv = (TextView) widget;
            Spanned s = (Spanned) tv.getText();
            int start = s.getSpanStart(this);
            int end = s.getSpanEnd(this);

            String theWord = s.subSequence(start, end).toString();
            System.out.println(theWord);
            Toast.makeText(context, String.format("Tags for tags: %s", theWord), Toast.LENGTH_SHORT).show();

        }
    }



    @Override
    public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
        // Here is an example MenuItem
        menu.add(0, 1, 0, "HighLight").setIcon(R.mipmap.ic_launcher);
        menu.add(0, 2, 0, "Clear").setIcon(R.mipmap.ic_launcher);
        menu.add(0, 3, 0, "Underline").setIcon(R.mipmap.ic_launcher);
        return true;
    }

    @Override
    public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
        switch (item.getItemId()) {
            case 1:
                if (isFocused()) {
                    final int selStart = getSelectionStart();
                    final int selEnd = getSelectionEnd();
                    setHighlightText(selStart, selEnd);
                }
                mode.finish();
                return true;
            case 2:
                if (isFocused()) {
                    final int selStart = getSelectionStart();
                    final int selEnd = getSelectionEnd();
                    setClearText(selStart, selEnd);
                }
                mode.finish();
                return true;
            case 3:
                if (isFocused()) {
                    final int selStart = getSelectionStart();
                    final int selEnd = getSelectionEnd();
                    setUnderlineText(selStart, selEnd);
                }
                mode.finish();
                return true;
            default:
                break;
        }
        return true;
    }


    @Override
    public void onDestroyActionMode(ActionMode mode) {
    }
}