How can i change specific text color?

[emrememil]

How can i change specific text color?

[ciouti]

it's working well. Thanks a lot!

Glad I could help.

[ciouti]

use "font", example:

<font color="#7093DB">your text</font>
<font color="#7093DB" size="5">your text</font>

[emrememil]

@ciouti I tried this but it didn't work.

This is my configuration for Markdown. Is there something missing?

        return Markwon.builder(context)
            .usePlugin(HtmlPlugin.create { plugin -> plugin.excludeDefaults(true) })
            .usePlugin(CorePlugin.create())
            .usePlugin(CoilImagesPlugin.create(context, coilImageLoader))
            .usePlugin(MarkwonInlineParserPlugin.create())
            .usePlugin(JLatexMathPlugin.create(binding.markdownTextView.textSize) { mathPluginBuilder ->
                mathPluginBuilder.inlinesEnabled(true)
            })
            .usePlugin(StrikethroughPlugin.create())
            .usePlugin(TablePlugin.create(context))
            .usePlugin(TaskListPlugin.create(context))
            .usePlugin(SimpleExtPlugin.create())
            .usePlugin(LinkifyPlugin.create(linkifyMask))
            .usePlugin(object : AbstractMarkwonPlugin() {
                override fun configureConfiguration(builder: MarkwonConfiguration.Builder) {
                }
            })
            .build()

[ciouti]

Sorry, I forgot this is my own extension of the code. Here is the code :

                //HTML
                .usePlugin(HtmlPlugin.create(plugin -> {
                    plugin.addHandler(new FontTagHandler());
                }))

FontTagHandler Class :

package utils.markwon;

import static utils.tool.StrUtils.patternStrArr;

import android.graphics.Color;
import android.text.TextUtils;
import android.text.style.AbsoluteSizeSpan;
import android.text.style.ForegroundColorSpan;
import android.util.Log;

import androidx.annotation.NonNull;
import androidx.annotation.Nullable;

import org.jetbrains.annotations.NotNull;

import java.util.Collection;
import java.util.Collections;
import java.util.Objects;

import io.noties.markwon.MarkwonVisitor;
import io.noties.markwon.html.HtmlTag;
import io.noties.markwon.html.MarkwonHtmlRenderer;
import io.noties.markwon.html.TagHandler;

public class FontTagHandler extends TagHandler {

    private final int fontTextSize;

    FontTagHandler() {
        this.fontTextSize = 15;
    }

    private static double parsePositionSize(@Nullable String value) {
        double position;
        if (!TextUtils.isEmpty(value)) {
            try {
                position = Double.parseDouble(Objects.requireNonNull(value));
            } catch (NumberFormatException e) {
                e.printStackTrace();
                position = 3;
            }
        } else {
            position = 3;
        }
        return position;
    }

    private static String parsePositionColor(@Nullable String value) {
        String position = "#000000";
        if (!TextUtils.isEmpty(value)) {
            try {
                String[] positions = patternStrArr(Objects.requireNonNull(value), "^#{0,1}[a-fA-F\\d]{6}$");
                if (positions != null) {
                    position = positions[0];
                    if (!position.startsWith("#")) {
                        position = String.format("%s%s", "#", position);
                    }
                }
            } catch (NumberFormatException e) {
                e.printStackTrace();
            }
        }
        return position;
    }

    @Override
    public void handle(
            @NonNull MarkwonVisitor visitor,
            @NonNull MarkwonHtmlRenderer renderer,
            @NonNull HtmlTag tag) {

        //自定义文本大小 <font size="3">This is some text!</font>
        final double size = parsePositionSize(tag.attributes().get("size"));
        int setTextSize;
        try {
            if (size > 0) {
                setTextSize = Double.valueOf(size * fontTextSize).intValue();
            } else {
                setTextSize = 3 * fontTextSize;
            }
        } catch (Exception exception) {
            Log.e("MarkdownTAG", String.valueOf(exception));
            setTextSize = 3 * fontTextSize;
        }
        visitor.builder().setSpan(
                new AbsoluteSizeSpan(setTextSize),
                tag.start(),
                tag.end()
        );

        //自定义文本颜色 <font color="#000000">This is some text!</font>
        final String color = parsePositionColor(tag.attributes().get("color"));
        visitor.builder().setSpan(
                new ForegroundColorSpan(Color.parseColor(color)),
                tag.start(),
                tag.end()
        );

    }

    @NonNull
    @NotNull
    @Override
    public Collection<String> supportedTags() {
        return Collections.singleton("font");
    }
}

patternStrArr code :

    //正则匹配字符串
    public static String[] patternStrArr(@NotNull String str, @NonNull String pattern_split) {
        try {
            final Pattern p = Pattern.compile(pattern_split);
            final Matcher m = p.matcher(str);
            ArrayList<String> tempList = new ArrayList<>();
            String[] strArr;
            while (m.find()) {
                tempList.add(m.group());
            }
            if (tempList.size() > 0) {
                strArr = arrListToStr(tempList);//匹配结果保存到strArr
                return strArr;
            } else {
                return null;
            }
        } catch (Exception exception) {
            Log.e("PatternTAG", String.valueOf(exception));
            return null;
        }
    }

[ciouti]

size = 3 This is closest to the size of normal text.
My code allows numeric values with fractional parts, but Typora or the browser doesn't support them.

[emrememil]

it's working well. Thanks a lot!