Question

编码很新，只需几周的时间在这里和那里学习。我正在尝试构建一个应用程序，并且正在取得进展，但却遇到了障碍。我想在我的子项中只有两个单词粗体。有帮助吗？这是我的java文件，其中包含可扩展列表的详细信息。

 Appliances.add("The first word of each paragraph\nis what I would like to be bold faced");

Answer 1

final SpannableStringBuilder sb = new SpannableStringBuilder("The first word of each paragraph, what I would like to be bold faced.");
// Span to make text bold
final StyleSpan bss = new StyleSpan(android.graphics.Typeface.BOLD); 
// make all characters of the second and sixth word Bold 
sb.setSpan(bss, 4, 9, Spannable.SPAN_INCLUSIVE_INCLUSIVE); // make word 'first' bold
sb.setSpan(bss, 23, 32, Spannable.SPAN_INCLUSIVE_INCLUSIVE); // make word 'paragraph' bold

sb应该生成字符串 - 每个段的第一个字，我希望大胆面对。

然后根据需要使用字符串：

Appliances.add(sb.toString());

Answer 2

有一个最简单的解决方案，只需将您的字符串添加到＆＃34; res＆＃34;下的值文件夹的string.xml文件中。安卓工作室的文件夹。

for make two words bold只需将此字符串添加到上面的stirng.xml文件中。

<b>The</b> first word of each paragraph\nis <b>what</b> I would like to be bold faced

然后像使用它一样。

    Appliances.add(R.string.strinname);

Answer 3

使用以下类别，即yourTextView.setText(new RichTextView(sentence).setBold(wordWichYouwantBold))

你可以在里面找到另一个有用的方法:)享受!!!

import android.graphics.Typeface;
import android.text.Spannable;
import android.text.SpannableString;
import android.text.style.ClickableSpan;
import android.text.style.ForegroundColorSpan;
import android.text.style.RelativeSizeSpan;
import android.text.style.StrikethroughSpan;
import android.text.style.StyleSpan;
import android.text.style.URLSpan;
import android.view.View;

/**
 * Created by RajeshKushvaha on 19-11-16
 */


//.setText(text, TextView.BufferType.SPANNABLE); to textView if not work
public class RichTextView extends SpannableString {
private String syntax;

public RichTextView(String syntax) {
    super(syntax);
    this.syntax = syntax;
}

public RichTextView setTextColor(String word, int color) {
    setSpan(new ForegroundColorSpan(color), syntax.indexOf(word), syntax.indexOf(word) + word.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
    return this;
}

public RichTextView setSize(String word, float howMuch) {
    setSpan(new RelativeSizeSpan(howMuch), syntax.indexOf(word), syntax.indexOf(word) + word.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
    return this;
}

public RichTextView setStrikeOut(String word) {
    setSpan(new StrikethroughSpan(), syntax.indexOf(word), syntax.indexOf(word) + word.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
    return this;
}

public RichTextView setUrl(String word, String redirectUrl) {
    setSpan(new URLSpan(redirectUrl), syntax.indexOf(word), syntax.indexOf(word) + word.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
    return this;
}

public RichTextView setBold(String word) {
    StyleSpan boldSpan = new StyleSpan(Typeface.BOLD);
    setSpan(boldSpan, syntax.indexOf(word), syntax.indexOf(word) + word.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
    return this;
}

//setMovementMethod(LinkMovementMethod.getInstance()); after or before call
public RichTextView setClickable(String word, final setOnLinkClickListener listener) {
    ClickableSpan clickableSpan = new ClickableSpan() {
        @Override
        public void onClick(View view) {
            if (listener != null) {
                listener.onLinkClicked();
            }
        }
    };
    setSpan(clickableSpan, syntax.indexOf(word), syntax.indexOf(word) + word.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
    return this;
}

public interface setOnLinkClickListener {
    public void onLinkClicked();
}
}

尝试在可扩展列表中在Android Studio中加粗特定文本

3 个答案: