这个工具类真是构思了良久才设计出来，采用了建造者模式，然后你们就可以用链式调用了，talk is cheap, let me show the demo.
demo
code
有没有心动一下哈，下面就让老司机为你们开路。
站点
- SpannableString相关工具类→SpannableStringUtils.java→Demo
getBuilder : 获取建造者 setFlag : 设置标识 setForegroundColor: 设置前景色 setBackgroundColor: 设置背景色 setQuoteColor : 设置引用线的颜色 setLeadingMargin : 设置缩进 setBullet : 设置列表标记 setProportion : 设置字体比例 setXProportion : 设置字体横向比例 setStrikethrough : 设置删除线 setUnderline : 设置下划线 setSuperscript : 设置上标 setSubscript : 设置下标 setBold : 设置粗体 setItalic : 设置斜体 setBoldItalic : 设置粗斜体 setFontFamily : 设置字体 setAlign : 设置对齐 setBitmap : 设置图片 setDrawable : 设置图片 setUri : 设置图片 setResourceId : 设置图片 setClickSpan : 设置点击事件 setUrl : 设置超链接 setBlur : 设置模糊 append : 追加样式字符串 create : 创建样式字符串
具体路线
package com.blankj.utilcode.utils;
import android.graphics.Bitmap;
import android.graphics.BlurMaskFilter;
import android.graphics.Typeface;
import android.graphics.drawable.Drawable;
import android.net.Uri;
import android.support.annotation.ColorInt;
import android.support.annotation.DrawableRes;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.text.Layout.Alignment;
import android.text.SpannableStringBuilder;
import android.text.Spanned;
import android.text.style.AlignmentSpan;
import android.text.style.BackgroundColorSpan;
import android.text.style.BulletSpan;
import android.text.style.ClickableSpan;
import android.text.style.ForegroundColorSpan;
import android.text.style.ImageSpan;
import android.text.style.LeadingMarginSpan;
import android.text.style.MaskFilterSpan;
import android.text.style.QuoteSpan;
import android.text.style.RelativeSizeSpan;
import android.text.style.ScaleXSpan;
import android.text.style.StrikethroughSpan;
import android.text.style.StyleSpan;
import android.text.style.SubscriptSpan;
import android.text.style.SuperscriptSpan;
import android.text.style.TypefaceSpan;
import android.text.style.URLSpan;
import android.text.style.UnderlineSpan;
import static android.graphics.BlurMaskFilter.Blur;
/**
* <pre>
* author: Blankj
* blog : http://blankj.com
* time : 16/12/13
* desc : SpannableString相关工具类
* </pre>
*/
public class SpannableStringUtils {
private SpannableStringUtils() {
throw new UnsupportedOperationException("u can't instantiate me...");
}
/**
* 获取建造者
*
* @return {@link Builder}
*/
public static Builder getBuilder(@NonNull CharSequence text) {
return new Builder(text);
}
public static class Builder {
private int defaultValue = 0x12000000;
private CharSequence text;
private int flag;
@ColorInt
private int foregroundColor;
@ColorInt
private int backgroundColor;
@ColorInt
private int quoteColor;
private boolean isLeadingMargin;
private int first;
private int rest;
private boolean isBullet;
private int gapWidth;
private int bulletColor;
private float proportion;
private float xProportion;
private boolean isStrikethrough;
private boolean isUnderline;
private boolean isSuperscript;
private boolean isSubscript;
private boolean isBold;
private boolean isItalic;
private boolean isBoldItalic;
private String fontFamily;
private Alignment align;
private boolean imageIsBitmap;
private Bitmap bitmap;
private boolean imageIsDrawable;
private Drawable drawable;
private boolean imageIsUri;
private Uri uri;
private boolean imageIsResourceId;
@DrawableRes
private int resourceId;
private ClickableSpan clickSpan;
private String url;
private boolean isBlur;
private float radius;
private Blur style;
private SpannableStringBuilder mBuilder;
private Builder(@NonNull CharSequence text) {
this.text = text;
flag = Spanned.SPAN_EXCLUSIVE_EXCLUSIVE;
foregroundColor = defaultValue;
backgroundColor = defaultValue;
quoteColor = defaultValue;
proportion = -1;
xProportion = -1;
mBuilder = new SpannableStringBuilder();
}
/**
* 设置标识
*
* @param flag <ul>
* <li>{@link Spanned#SPAN_INCLUSIVE_EXCLUSIVE}</li>
* <li>{@link Spanned#SPAN_INCLUSIVE_INCLUSIVE}</li>
* <li>{@link Spanned#SPAN_EXCLUSIVE_EXCLUSIVE}</li>
* <li>{@link Spanned#SPAN_EXCLUSIVE_INCLUSIVE}</li>
* </ul>
* @return {@link Builder}
*/
public Builder setFlag(int flag) {
this.flag = flag;
return this;
}
/**
* 设置前景色
*
* @param color 前景色
* @return {@link Builder}
*/
public Builder setForegroundColor(@ColorInt int color) {
this.foregroundColor = color;
return this;
}
/**
* 设置背景色
*
* @param color 背景色
* @return {@link Builder}
*/
public Builder setBackgroundColor(@ColorInt int color) {
this.backgroundColor = color;
return this;
}
/**
* 设置引用线的颜色
*
* @param color 引用线的颜色
* @return {@link Builder}
*/
public Builder setQuoteColor(@ColorInt int color) {
this.quoteColor = color;
return this;
}
/**
* 设置缩进
*
* @param first 首行缩进
* @param rest 剩余行缩进
* @return {@link Builder}
*/
public Builder setLeadingMargin(int first, int rest) {
this.first = first;
this.rest = rest;
isLeadingMargin = true;
return this;
}
/**
* 设置列表标记
*
* @param gapWidth 列表标记和文字间距离
* @param color 列表标记的颜色
* @return {@link Builder}
*/
public Builder setBullet(int gapWidth, int color) {
this.gapWidth = gapWidth;
bulletColor = color;
isBullet = true;
return this;
}
/**
* 设置字体比例
*
* @param proportion 比例
* @return {@link Builder}
*/
public Builder setProportion(float proportion) {
this.proportion = proportion;
return this;
}
/**
* 设置字体横向比例
*
* @param proportion 比例
* @return {@link Builder}
*/
public Builder setXProportion(float proportion) {
this.xProportion = proportion;
return this;
}