Java SpannableString类代码示例

import android.text.SpannableString; //导入依赖的package包/类
public SpannableString getDesignationText()
{
    String text = txtDesignation.getText().toString();

    SpannableString s = new SpannableString(text);

    s.setSpan(new ForegroundColorSpan(getResources().getColor(R.color.colorAccent)), text.indexOf("@"), text.length(), 0);

    /*
    s.setSpan(new RelativeSizeSpan(1.2f), text.indexOf("A"), text.length(), 0);
    s.setSpan(new StyleSpan(Typeface.NORMAL), text.indexOf("A"), text.length(), 0);
    s.setSpan(new ForegroundColorSpan(Color.BLACK), text.indexOf("A"), text.length(), 0);
    */

    return s;
}
 

import android.text.SpannableString; //导入依赖的package包/类
private void spanTest() {
        SpannableString spannableString = new SpannableString("欢迎光临我的博客");
//        字体颜色span
        ForegroundColorSpan colorSpan = new ForegroundColorSpan(Color.BLUE);
//        背景颜色span
        BackgroundColorSpan backgroundColorSpan = new BackgroundColorSpan(Color.RED);

//        1,3其实是两个位置，末尾不包括
//        Flag 为 span如果新增了文字 的前面不包括样式，后面包括样式
        spannableString.setSpan(colorSpan, 1, 3, Spanned.SPAN_EXCLUSIVE_INCLUSIVE);
        spannableString.setSpan(backgroundColorSpan, 5, 7, Spanned.SPAN_INCLUSIVE_EXCLUSIVE);

        SpannableStringBuilder spannableStringBuilder = new SpannableStringBuilder();
        spannableStringBuilder.append(spannableString);

        editText.setText(spannableString);

    }
 

import android.text.SpannableString; //导入依赖的package包/类
public CharSequence getformatedSearchSnippet() {
    //TODO implement improved snippet function
    String CleanedSearchString = " " + ArabicUtilities.cleanTextForSearchingWthStingBuilder(searchString) + " ";
    StringBuilder cleanedUnformattedPage = new StringBuilder(ArabicUtilities.cleanTextForSearchingWthStingBuilder(unformatedPage));
    int firstMatchStart = cleanedUnformattedPage.indexOf(CleanedSearchString);
    cleanedUnformattedPage.delete(0, Math.max(firstMatchStart - 100, 0));
    cleanedUnformattedPage.delete(
            Math.min(firstMatchStart + CleanedSearchString.length() + 100, cleanedUnformattedPage.length())
            , cleanedUnformattedPage.length());
    cleanedUnformattedPage.insert(0, "...");
    cleanedUnformattedPage.append("...");

    Spannable snippet = SpannableString.
            valueOf(cleanedUnformattedPage.toString());
    int index = TextUtils.indexOf(snippet, CleanedSearchString);
    while (index >= 0) {

        snippet.setSpan(new BackgroundColorSpan(0xFF8B008B), index, index
                + CleanedSearchString.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
        index = TextUtils.indexOf(snippet, CleanedSearchString, index + CleanedSearchString.length());
    }

    return snippet;
}
 

import android.text.SpannableString; //导入依赖的package包/类
public static SpannableStringBuilder getTeaser(Context ctx, Spanned body) {
	if (body.length() < TEASER_LENGTH)
		throw new IllegalArgumentException(
				"String is shorter than TEASER_LENGTH");

	SpannableStringBuilder builder =
			new SpannableStringBuilder(body.subSequence(0, TEASER_LENGTH));
	String ellipsis = ctx.getString(R.string.ellipsis);
	builder.append(ellipsis).append(" ");

	Spannable readMore = new SpannableString(
			ctx.getString(R.string.read_more) + ellipsis);
	ForegroundColorSpan fg = new ForegroundColorSpan(
			ContextCompat.getColor(ctx, R.color.briar_text_link));
	readMore.setSpan(fg, 0, readMore.length(),
			Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
	builder.append(readMore);

	return builder;
}
 

import android.text.SpannableString; //导入依赖的package包/类
static void show(View parent,
                 CharSequence text,
                 int duration,
                 @ColorInt int textColor,
                 @ColorInt int bgColor,
                 CharSequence actionText,
                 @ColorInt int actionTextColor,
                 View.OnClickListener listener) {
    SpannableString spannableString = new SpannableString(text);
    ForegroundColorSpan colorSpan = new ForegroundColorSpan(textColor);
    spannableString.setSpan(colorSpan, 0, spannableString.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
    snackbarWeakReference = new WeakReference<>(Snackbar.make(parent, spannableString, duration));
    Snackbar snackbar = snackbarWeakReference.get();
    View view = snackbar.getView();
    view.setBackgroundColor(bgColor);
    if (actionText != null && actionText.length() > 0 && listener != null) {
        snackbar.setActionTextColor(actionTextColor);
        snackbar.setAction(actionText, listener);
    }
    snackbar.show();

}
 

import android.text.SpannableString; //导入依赖的package包/类
@Override
public void convert(EasyLVHolder holder, int position, BookMark item) {
    TextView tv = holder.getView(R.id.tvMarkItem);

    SpannableString spanText = new SpannableString((position + 1) + ". " + item.title + ": ");
    spanText.setSpan(new ForegroundColorSpan(ContextCompat.getColor(mContext, R.color.light_coffee)),
            0, spanText.length(), Spannable.SPAN_INCLUSIVE_EXCLUSIVE);

    tv.setText(spanText);

    if (item.desc != null) {
        tv.append(item.desc
                .replaceAll("　", "")
                .replaceAll(" ", "")
                .replaceAll("\n", ""));
    }

}
 

import android.text.SpannableString; //导入依赖的package包/类
public void render(final TextView textView, final Context context, String line)
{
    final Handler handler = new Handler(Looper.getMainLooper());
    final SpannableString text = new SpannableString("  " + line + "\n");

    handler.post(new Runnable()
    {
        @Override
        public void run()
        {
            //set the image tag behind (left of) the text
            text.setSpan(new ImageSpan(context, IMAGE_TAG), 0, 1, 0);
            textView.append(text);
        }
    });
}
 

import android.text.SpannableString; //导入依赖的package包/类
@Override
public void showDialog(Activity activity) {
    super.showDialog(activity);
    dismissDialog(activity);
    ThemedAlertDialog.Builder dialog = new ThemedAlertDialog.Builder(activity);
    dialog.setTitle(R.string.connection_error_command_title);

    StringBuilder commands = new StringBuilder();
    for (String cmd : mCommands) {
        commands.append('/');
        commands.append(cmd);
        commands.append('\n');
    }
    SpannableString commandsSeq = new SpannableString(commands);
    commandsSeq.setSpan(new TypefaceSpan("monospace"), 0, commandsSeq.length(),
            SpannableString.SPAN_EXCLUSIVE_EXCLUSIVE);
    dialog.setMessage(SpannableStringHelper.format(activity.getResources().getQuantityText(
            R.plurals.connection_error_command_dialog_content, mCommands.size()),
            mNetworkName, commandsSeq));
    dialog.setPositiveButton(R.string.action_ok, null);
    dialog.setOnDismissListener((DialogInterface di) -> {
        dismiss();
    });
    mDialog = dialog.show();
}
 

import android.text.SpannableString; //导入依赖的package包/类
@Override
public CharSequence terminateToken(CharSequence text) {
    int i = text.length();
    while (i > 0 && text.charAt(i - 1) == ' ') {
        i--;
    }
    if (i > 0 && text.charAt(i - 1) == ' ') {
        return text;
    } else if (text instanceof Spanned) {
        SpannableString s = new SpannableString(text + " ");
        TextUtils.copySpansFrom((Spanned) text, 0, text.length(), Object.class, s, 0);
        return s;
    } else {
        return text + " ";
    }
}
 

import android.text.SpannableString; //导入依赖的package包/类
/**
 * 设置snackbar文字和背景颜色
 *
 * @param parent          父视图(CoordinatorLayout或者DecorView)
 * @param text            文本
 * @param duration        显示时长
 * @param textColor       文本颜色
 * @param bgColor         背景色
 * @param actionText      事件文本
 * @param actionTextColor 事件文本颜色
 * @param listener        监听器
 */
private static void show(View parent,
                         CharSequence text,
                         int duration,
                         @ColorInt int textColor,
                         @ColorInt int bgColor,
                         CharSequence actionText,
                         @ColorInt int actionTextColor,
                         View.OnClickListener listener) {
    SpannableString spannableString = new SpannableString(text);
    ForegroundColorSpan colorSpan = new ForegroundColorSpan(textColor);
    spannableString.setSpan(colorSpan, 0, spannableString.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
    snackbarWeakReference = new WeakReference<>(Snackbar.make(parent, spannableString, duration));
    Snackbar snackbar = snackbarWeakReference.get();
    View view = snackbar.getView();
    view.setBackgroundColor(bgColor);
    if (actionText != null && actionText.length() > 0 && listener != null) {
        snackbar.setActionTextColor(actionTextColor);
        snackbar.setAction(actionText, listener);
    }
    snackbar.show();
}
 

import android.text.SpannableString; //导入依赖的package包/类
private void newColor(int color){
    this.color = color;

    // Sets action bar colors
    if (getSupportActionBar() == null) return;

    getSupportActionBar().setBackgroundDrawable(new ColorDrawable(0xFF000000 | color));

    boolean dark = Color.red(color) * 0.299 + Color.green(color) * 0.587 + Color.blue(color) * 0.114 < 180;
    SpannableString s = new SpannableString(getSupportActionBar().getTitle());
    s.setSpan(new ForegroundColorSpan(dark ? Color.WHITE : Color.BLACK), 0, s.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
    getSupportActionBar().setTitle(s);

    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
        float[] hsv = new float[3];
        Color.colorToHSV(color, hsv);
        hsv[2] *= 0.75;
        getWindow().setStatusBarColor(Color.HSVToColor(hsv));
    }
}
 

import android.text.SpannableString; //导入依赖的package包/类
private void displayPlaylistInfo(final Playlist playlist)
{
	final TextView textView = new TextView(this);
	textView.setPadding(5, 5, 5, 5);

	final Spannable message = new SpannableString("Owner: " + playlist.getOwner() + "\nComments: " +
			((playlist.getComment() == null) ? "" : playlist.getComment()) +
			"\nSong Count: " + playlist.getSongCount() +
			((playlist.getPublic() == null) ? "" : ("\nPublic: " + playlist.getPublic()) + ((playlist.getCreated() == null) ? "" : ("\nCreation Date: " + playlist.getCreated().replace('T', ' ')))));

	Linkify.addLinks(message, Linkify.WEB_URLS);
	textView.setText(message);
	textView.setMovementMethod(LinkMovementMethod.getInstance());

	new AlertDialog.Builder(this).setTitle(playlist.getName()).setCancelable(true).setIcon(android.R.drawable.ic_dialog_info).setView(textView).show();
}
 

import android.text.SpannableString; //导入依赖的package包/类
public void setText(String text) {
    int startIndex = 0;
    while (true) {

        int start = text.indexOf("《");
        int end = text.indexOf("》");
        if (start < 0 || end < 0) {
            append(text.substring(startIndex));
            break;
        }

        append(text.substring(startIndex, start));

        SpannableString spanableInfo = new SpannableString(text.substring(start, end + 1));
        spanableInfo.setSpan(new Clickable(spanableInfo.toString()), 0, end + 1 - start, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
        append(spanableInfo);
        //setMovementMethod()该方法必须调用，否则点击事件不响应
        setMovementMethod(LinkMovementMethod.getInstance());
        text = text.substring(end + 1);

        LogUtils.e(spanableInfo.toString());
    }
}
 

import android.text.SpannableString; //导入依赖的package包/类
public void setHint(@NonNull String hint, @Nullable CharSequence subHint) {
  this.hint = new SpannableString(hint);
  this.hint.setSpan(new RelativeSizeSpan(0.8f), 0, hint.length(), Spannable.SPAN_INCLUSIVE_INCLUSIVE);

  if (subHint != null) {
    this.subHint = new SpannableString(subHint);
    this.subHint.setSpan(new RelativeSizeSpan(0.8f), 0, subHint.length(), Spannable.SPAN_INCLUSIVE_INCLUSIVE);
  } else {
    this.subHint = null;
  }

  if (this.subHint != null) {
    super.setHint(new SpannableStringBuilder().append(ellipsizeToWidth(this.hint))
                                              .append("\n")
                                              .append(ellipsizeToWidth(this.subHint)));
  } else {
    super.setHint(ellipsizeToWidth(this.hint));
  }
}
 

import android.text.SpannableString; //导入依赖的package包/类
private CharSequence generateState(OrgHead head) {
    SpannableString str = new SpannableString(head.getState());

    ForegroundColorSpan color;

    if (AppPreferences.todoKeywordsSet(mContext).contains(head.getState())) {
        color = attributes.colorTodo;
    } else if (AppPreferences.doneKeywordsSet(mContext).contains(head.getState())) {
        color = attributes.colorDone;
    } else {
        color = attributes.colorUnknown;
    }

    str.setSpan(color, 0, str.length(), 0);

    return str;
}