Android 自定义圆角TextView控件 带边框 非shape
2024-04-08 11:39:51
Android 自定义圆角TextView控件
在开发中遇到圆角背景大多都是shape资源文件 这样是最简单的方式之一，但是如果很多的圆角，资源文件要不断地创建不同的drawable,最终对打包Apk也不太友好，自定义一个控件来实现View多用
先来看下效果
自定义一个RectgleTextView
public class RectgleTextView extends AppCompatTextView {private static final String EMPTY_SPACE = "\u3000";private final Context mContext;private int type = RECTANGLE;private float mRadius;private float mTopLeftRadius, mTopRightRadius, mBottomLeftRadius, mBottomRightRadius;private int mStrokeColor;private int mStrokeWidth;private int mSoild;private float mTextPadding;private CharSequence mTextLeft;private CharSequence mTextRight;private ColorStateList mIconColor = null;private int mCurIconColor;private CharSequence iconString;private ColorStateList mLeftColor = null;private int mCurLeftColor;private ColorStateList mRightColor = null;private int mCurRightColor;private float mLeftSize;private float mRightSize;private List<SpanContainer> leftContainer;private List<SpanContainer> rightContainer;private int mTextLeftStyle;private int mTextRightStyle;private int mTextCenterStyle;//icon的indexprivate int iconIndex = 0;//是否开启计算文字边界，开启后会以最大文字大小为View高度，并且会增加部分文字高度，防止部分英文类型y,g由于基线的原因无法显示完全private boolean autoMaxHeight;//渐变色private ColorStateList startColor = null;private ColorStateList centerColor = null;private ColorStateList endColor = null;//渐变方向GradientDrawable.Orientation orientation;public RectgleTextView(Context context) {this(context, null);}public RectgleTextView(Context context, @Nullable AttributeSet attrs) {this(context, attrs, 0);}public RectgleTextView(Context context, @Nullable AttributeSet attrs, int defStyleAttr) {super(context, attrs, defStyleAttr);this.mContext = context;initAttr(context, attrs);init();}private void init() {initIconFont();initShape();}private void initIconFont() {iconString = getText().toString();int centerSize = iconString.length();SpannableStringBuilder stringBuilder = new SpannableStringBuilder(getText());if (!TextUtils.isEmpty(mTextLeft) || !TextUtils.isEmpty(mTextRight)) {//增加空格if (!TextUtils.isEmpty(mTextLeft)) {if (mTextPadding != 0) {stringBuilder.insert(0, EMPTY_SPACE);iconIndex++;}stringBuilder.insert(0, mTextLeft);iconIndex += mTextLeft.length();}if (!TextUtils.isEmpty(mTextRight)) {if (mTextPadding != 0) {stringBuilder.append(EMPTY_SPACE);}stringBuilder.append(mTextRight);}/** ==============* 设置字和icon间距* ==============*/if (mTextPadding != 0) {//设置字和icon间距if (!TextUtils.isEmpty(mTextLeft)) {AbsoluteSizeSpan sizeSpan = new AbsoluteSizeSpan((int) mTextPadding);stringBuilder.setSpan(sizeSpan, iconIndex - 1, iconIndex, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);}if (!TextUtils.isEmpty(mTextRight)) {AbsoluteSizeSpan sizeSpan = new AbsoluteSizeSpan((int) mTextPadding);stringBuilder.setSpan(sizeSpan, iconIndex + centerSize, iconIndex +centerSize + 1, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);}}/** ==============* 设置左边文字样式* ==============*/setLeftTextAttr(stringBuilder);/** ==============* 设置右边文字样式* ==============*/setRightTextAttr(centerSize, stringBuilder);}/** ==============* 设置icon和字的颜色* ==============*/if (mIconColor != null) {int color = mIconColor.getColorForState(getDrawableState(), 0);if (color != mCurIconColor) {mCurIconColor = color;}ForegroundColorSpan foregroundColorSpan = new ForegroundColorSpan(mCurIconColor);stringBuilder.setSpan(foregroundColorSpan, iconIndex, iconIndex + centerSize, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);} else {mCurIconColor = getCurrentTextColor();}/** ==============* 设置icon的字的样式* ==============*/initTextStyle(mTextCenterStyle, stringBuilder, iconIndex, iconIndex + centerSize);/** ==============* 设置左右Span，记得调用前在**所有方法**前先clearSpan(),不然直接build，上一次的span任然保留着* ==============*/if (leftContainer != null) {for (SpanContainer container : leftContainer) {for (Object o : container.spans) {try {stringBuilder.setSpan(o, container.start, container.end, container.flag);} catch (Exception e) {//please check invoke clearSpan() method first}}}}if (rightContainer != null) {int start = mTextPadding == 0 ? iconIndex + centerSize : iconIndex + centerSize + 1;for (SpanContainer container : rightContainer) {for (Object o : container.spans) {try {stringBuilder.setSpan(o, start + container.start, start + container.end,container.flag);} catch (Exception e) {//please check invoke clearSpan() method first}}}}setText(stringBuilder);}private void setRightTextAttr(int centerSize, SpannableStringBuilder stringBuilder) {if (!TextUtils.isEmpty(mTextRight)) {int start = mTextPadding == 0 ? iconIndex + centerSize : iconIndex + centerSize + 1;/** ==============* 设置右边字的粗体和斜体* ==============*/initTextStyle(mTextRightStyle, stringBuilder, start, stringBuilder.length());/** ==============* 设置右边字的颜色* ==============*/initTextRightColor(stringBuilder, start);/** ==============* 设置右边字的大小* ==============*/initTextSize(stringBuilder, start, stringBuilder.length(), mRightSize, mCurRightColor);}}private void initTextRightColor(SpannableStringBuilder stringBuilder, int start) {if (mRightColor != null) {int color = mRightColor.getColorForState(getDrawableState(), 0);if (color != mCurRightColor) {mCurRightColor = color;}ForegroundColorSpan foregroundRightColor = new ForegroundColorSpan(mCurRightColor);stringBuilder.setSpan(foregroundRightColor, start, stringBuilder.length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);} else {mCurRightColor = getCurrentTextColor();}}private void setLeftTextAttr(SpannableStringBuilder stringBuilder) {if (!TextUtils.isEmpty(mTextLeft)) {int end = mTextPadding == 0 ? iconIndex : iconIndex - 1;/** ==============* 设置左边字的粗体和斜体* ==============*/initTextStyle(mTextLeftStyle, stringBuilder, 0, end);/** ==============* 设置左边字的颜色* ==============*/initTextLeftColor(stringBuilder, end);/** ==============* 设置左边字的大小* ==============*/initTextSize(stringBuilder, 0, end, mLeftSize, mCurLeftColor);}}private void initTextSize(SpannableStringBuilder stringBuilder, int start, int end, floattextSize, int mCurColor) {if (textSize != 0) {CharacterStyle sizeSpan;final int gravity = getGravity() & Gravity.VERTICAL_GRAVITY_MASK;if (gravity == Gravity.CENTER_VERTICAL) {sizeSpan = new EasyVerticalCenterSpan(textSize, mCurColor);} else {sizeSpan = new AbsoluteSizeSpan((int) textSize);}stringBuilder.setSpan(sizeSpan, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);}}private void initTextLeftColor(SpannableStringBuilder stringBuilder, int end) {if (mLeftColor != null) {int color = mLeftColor.getColorForState(getDrawableState(), 0);if (color != mCurLeftColor) {mCurLeftColor = color;}ForegroundColorSpan foregroundLeftColor = new ForegroundColorSpan(mCurLeftColor);stringBuilder.setSpan(foregroundLeftColor, 0, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);} else {mCurLeftColor = getCurrentTextColor();}}private void initTextStyle(int textStyle, SpannableStringBuilder stringBuilder, int start,int end) {StyleSpan span;if (textStyle != Typeface.NORMAL) {span = new StyleSpan(textStyle);stringBuilder.setSpan(span, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);}}private void initShape() {if (mRadius == -0 && mStrokeColor == -1 && mStrokeWidth == 0 && mSoild ==-1 && mTopLeftRadius == 0 && mTopRightRadius == 0 && mBottomLeftRadius == 0 &&mBottomRightRadius == 0 ) {} else {setShape();}}private void setShape() {ShapeBuilder shapeBuilder;if (mRadius != 0) {shapeBuilder = ShapeBuilder.create().Type(type).Radius(mRadius).Stroke(mStrokeWidth, mStrokeColor);} else {if (mTopRightRadius != 0 || mTopLeftRadius != 0 || mBottomRightRadius != 0 || mBottomLeftRadius != 0) {shapeBuilder = ShapeBuilder.create().Type(type).RoundRadius(mTopLeftRadius,mTopRightRadius, mBottomLeftRadius, mBottomRightRadius).Stroke(mStrokeWidth, mStrokeColor);} else {shapeBuilder = ShapeBuilder.create().Type(type).Radius(mTopLeftRadius,mTopRightRadius, mBottomLeftRadius, mBottomRightRadius).Stroke(mStrokeWidth, mStrokeColor);}}if (orientation != null && startColor != null && endColor != null) {//渐变if (centerColor != null) {shapeBuilder.Gradient(orientation, getColor(startColor), getColor(centerColor),getColor(endColor));} else {shapeBuilder.GradientInit(orientation, getColor(startColor), getColor(endColor));}} else {shapeBuilder.Soild(mSoild);}shapeBuilder.build(this);}private int getColor(ColorStateList color) {return color.getColorForState(getDrawableState(), 0);}private GradientDrawable.Orientation switchEnumToOrientation(int orientation) {switch (orientation) {case 0:return GradientDrawable.Orientation.TOP_BOTTOM;case 1:return GradientDrawable.Orientation.TR_BL;case 2:return GradientDrawable.Orientation.RIGHT_LEFT;case 3:return GradientDrawable.Orientation.BR_TL;case 4:return GradientDrawable.Orientation.BOTTOM_TOP;case 5:return GradientDrawable.Orientation.BL_TR;case 6:return GradientDrawable.Orientation.LEFT_RIGHT;case 7:return GradientDrawable.Orientation.TL_BR;}return GradientDrawable.Orientation.LEFT_RIGHT;}private void clearText() {setText(iconString);iconIndex = 0;}private void initAttr(Context context, AttributeSet attrs) {//左右文字支持xml中设置iconFontTypedValue textValue = new TypedValue();TypedArray array = context.obtainStyledAttributes(attrs, R.styleable.RectgleTextView);type = array.getInteger(R.styleable.RectgleTextView_shapeType, 0);mRadius = array.getDimensionPixelOffset(R.styleable.RectgleTextView_totalRadius, 0);mTopLeftRadius = array.getDimensionPixelSize(R.styleable.RectgleTextView_topLeft, 0);mTopRightRadius = array.getDimensionPixelSize(R.styleable.RectgleTextView_topRight, 0);mBottomLeftRadius = array.getDimensionPixelSize(R.styleable.RectgleTextView_bottomLeft, 0);mBottomRightRadius = array.getDimensionPixelSize(R.styleable.RectgleTextView_bottomRight, 0);mStrokeColor = array.getColor(R.styleable.RectgleTextView_strColor, -1);mStrokeWidth = array.getDimensionPixelOffset(R.styleable.RectgleTextView_strWidth, 0);mSoild = array.getColor(R.styleable.RectgleTextView_solidBac, -1);mTextPadding = array.getDimensionPixelOffset(R.styleable.RectgleTextView_textPadding, 0);boolean has = array.getValue(R.styleable.RectgleTextView_textLeft, textValue);if (has) {if (textValue.type == TypedValue.TYPE_REFERENCE) {//文字引用mTextLeft = mContext.getResources().getText(textValue.resourceId);} else {//纯文字mTextLeft = textValue.string;}}has = array.getValue(R.styleable.RectgleTextView_textRight, textValue);if (has) {if (textValue.type == TypedValue.TYPE_REFERENCE) {//文字引用mTextRight = mContext.getResources().getText(textValue.resourceId);} else {//纯文字mTextRight = textValue.string;}}mIconColor = array.getColorStateList(R.styleable.RectgleTextView_iconColor);mLeftColor = array.getColorStateList(R.styleable.RectgleTextView_textLeftColor);mRightColor = array.getColorStateList(R.styleable.RectgleTextView_textRightColor);mLeftSize = array.getDimensionPixelSize(R.styleable.RectgleTextView_textLeftSize, 0);mRightSize = array.getDimensionPixelSize(R.styleable.RectgleTextView_textRightSize, 0);mTextLeftStyle = array.getInt(R.styleable.RectgleTextView_textLeftStyle, Typeface.NORMAL);mTextRightStyle = array.getInt(R.styleable.RectgleTextView_textRightStyle, Typeface.NORMAL);mTextCenterStyle = array.getInt(R.styleable.RectgleTextView_textCenterStyle, Typeface.NORMAL);autoMaxHeight = array.getBoolean(R.styleable.RectgleTextView_autoMaxHeight, false);orientation = switchEnumToOrientation(array.getInt(R.styleable.RectgleTextView_gradientOrientation, 0));startColor = array.getColorStateList(R.styleable.RectgleTextView_startSolid);centerColor = array.getColorStateList(R.styleable.RectgleTextView_centerSolid);endColor = array.getColorStateList(R.styleable.RectgleTextView_endSolid);array.recycle();}@Overrideprotected void drawableStateChanged() {if (mIconColor != null && mIconColor.isStateful()|| mLeftColor != null && mLeftColor.isStateful()|| mRightColor != null && mRightColor.isStateful()) {clearText();initIconFont();}super.drawableStateChanged();}/*** 设置Shape Type*/public void setType(int type) {this.type = type;setShape();}/*** 设置边线的宽度*/public void setStrokeWidth(int value) {this.mStrokeWidth = value;setShape();}/*** 设置边线的颜色*/public void setStrokeColor(@ColorInt int color) {this.mStrokeColor = color;setShape();}/*** 设置shape背景颜色*/public void setSolid(int soild) {this.mSoild = soild;setShape();}/*** 设置radius*/public void setRadius(int radius) {this.mRadius = radius;setShape();}/*** 设置icon颜色*/public void setIconColor(int color) {this.mIconColor = ColorStateList.valueOf(color);build();}/*** 设置左文案*/public void setTextLeft(CharSequence textLeft) {this.mTextLeft = textLeft;build();}/*** 设置左文案*/public void setTextLeft(@StringRes int textLeft) {this.mTextLeft = mContext.getString(textLeft);build();}/*** 设置右文案*/public void setTextRight(CharSequence textRight) {this.mTextRight = textRight;build();}/*** 设置右文案*/public void setTextRight(@StringRes int textRight) {this.mTextRight = mContext.getString(textRight);build();}/*** 设置左文案颜色*/public void setTextLeftColor(int color) {this.mLeftColor = ColorStateList.valueOf(color);build();}/*** 设置右文案颜色*/public void setTextRightColor(int color) {this.mRightColor = ColorStateList.valueOf(color);build();}/*** 设置左文案字号大小*/public void setTextLeftSize(float leftSize) {this.mLeftSize = leftSize;build();}/*** 设置右文案字号大小*/public void setTextRightSize(float rightSize) {this.mRightSize = rightSize;build();}/*** 设置Icon*/public void setIcon(String iconText) {this.iconString = iconText;build();}/*** 设置Icon*/public void setIcon(CharSequence iconText) {this.iconString = iconText;build();}/*** 设置Icon*/public void setIcon(@StringRes int iconText) {this.iconString = mContext.getString(iconText);build();}/*** 设置左文案样式*/public void setTextLeftStyle(int textLeftStyle) {this.mTextLeftStyle = textLeftStyle;build();}/*** 设置右文案样式*/public void setTextRightStyle(int textRightStyle) {this.mTextRightStyle = textRightStyle;build();}/*** 设置中间文案样式*/public void setTextCenterStyle(int textCenterStyle) {this.mTextCenterStyle = textCenterStyle;build();}/*** span之前需要首先clear*/public void clearSpan() {if (leftContainer != null) {leftContainer.clear();}if (rightContainer != null) {rightContainer.clear();}}/*** 设置左边文字为多个span*/public void addSpanLeft(List<Object> objects, int start, int end, int flags) {spanLeft(objects, start, end, flags);build();}/*** 设置左边文字为span*/public void addSpanLeft(Object object, int start, int end, int flags) {spanLeft(object, start, end, flags);build();}/*** 设置右边文字为多个span*/public void addSpanRight(List<Object> objects, int start, int end, int flags) {spanRight(objects, start, end, flags);build();}/*** 设置右边文字为span*/public void addSpanRight(Object object, int start, int end, int flags) {spanRight(object, start, end, flags);build();}/*** 设置文字padding*/public void setTextPadding(float textPadding) {this.mTextPadding = textPadding;build();}/*** 设置三段文字颜色*/public void setAllTextColor(@ColorInt int color) {allTextColor(color);build();}//=================================链式调用##需要最后调用build()==================================/*** 设置Shape type*/public RectgleTextView type(int type) {this.type = type;return this;}/*** 设置边线的宽度*/public RectgleTextView strokeWidth(int width) {this.mStrokeWidth = width;return this;}/*** 设置边线的宽度*/public RectgleTextView strokeColor(@ColorInt int color) {this.mStrokeColor = color;return this;}/*** 设置填充的颜色*/public RectgleTextView solid(@ColorInt int color) {this.mSoild = color;return this;}/*** 设置radius*/public RectgleTextView radius(int radius) {this.mRadius = radius;return this;}/*** 设置icon颜色*/public RectgleTextView iconColor(int color) {this.mIconColor = ColorStateList.valueOf(color);return this;}/*** 设置左文案*/public RectgleTextView textLeft(String textLeft) {this.mTextLeft = textLeft;return this;}/*** 设置左文案*/public RectgleTextView textLeft(@StringRes int textLeft) {this.mTextLeft = mContext.getString(textLeft);return this;}/*** 设置右文案*/public RectgleTextView textRight(String textRight) {this.mTextRight = textRight;return this;}/*** 设置右文案*/public RectgleTextView textRight(@StringRes int textRight) {this.mTextRight = mContext.getString(textRight);return this;}/*** 设置左文案颜色*/public RectgleTextView textLeftColor(int color) {this.mLeftColor = ColorStateList.valueOf(color);return this;}/*** 设置右文案颜色*/public RectgleTextView textRightColor(int color) {this.mRightColor = ColorStateList.valueOf(color);return this;}/*** 设置左文案字号大小*/public RectgleTextView textLeftSize(float leftSize) {this.mLeftSize = leftSize;return this;}/*** 设置右文案字号大小*/public RectgleTextView textRightSize(float rightSize) {this.mRightSize = rightSize;return this;}/*** 设置Icon*/public RectgleTextView icon(String iconText) {this.iconString = iconText;return this;}/*** 设置Icon*/public RectgleTextView icon(@StringRes int iconText) {this.iconString = mContext.getString(iconText);return this;}/*** 设置左文案样式*/public RectgleTextView textLeftStyle(int textLeftStyle) {this.mTextLeftStyle = textLeftStyle;return this;}/*** 设置右文案样式*/public RectgleTextView textRightStyle(int textRightStyle) {this.mTextRightStyle = textRightStyle;return this;}/*** 设置中间文案样式*/public RectgleTextView textCenterStyle(int textCenterStyle) {this.mTextCenterStyle = textCenterStyle;return this;}/*** 设置右边文字为多个span*/public RectgleTextView spanRight(List<Object> objects, int start, int end, int flags) {if (rightContainer == null) {rightContainer = new ArrayList<>();}this.rightContainer.add(new SpanContainer(objects, start, end, flags));return this;}/*** 设置右边文字为span*/public RectgleTextView spanRight(Object object, int start, int end, int flags) {if (rightContainer == null) {rightContainer = new ArrayList<>();}this.rightContainer.add(new SpanContainer(object, start, end, flags));return this;}/*** 设置左边文字为多个span*/public RectgleTextView spanLeft(List<Object> objects, int start, int end, int flags) {if (leftContainer == null) {leftContainer = new ArrayList<>();}this.leftContainer.add(new SpanContainer(objects, start, end, flags));return this;}/*** 设置左边文字为span*/public RectgleTextView spanLeft(Object object, int start, int end, int flags) {if (leftContainer == null) {leftContainer = new ArrayList<>();}this.leftContainer.add(new SpanContainer(object, start, end, flags));return this;}/*** 设置文字padding*/public RectgleTextView textPadding(float textPadding) {this.mTextPadding = textPadding;return this;}/*** 设置三段文字颜色*/public RectgleTextView allTextColor(@ColorInt int color) {ColorStateList temp = ColorStateList.valueOf(color);this.mIconColor = temp;this.mLeftColor = temp;this.mRightColor = temp;return this;}/*** 获取中间的文案*/public CharSequence getIconStr() {return iconString;}/*** 防止重复初始化，最后调用build*/public RectgleTextView build() {clearText();//initIconFont();init();return this;}protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {try {super.onMeasure(widthMeasureSpec, heightMeasureSpec);} catch (Exception e) {}if (this.autoMaxHeight) {int lead = 0;if (this.getPaint() != null) {lead = this.getPaint().getFontMetricsInt().leading * 3;}this.setMeasuredDimension(this.getMeasuredWidth(), (int) (Math.max((float) this.getMeasuredHeight(), Math.max(this.mLeftSize, this.mRightSize)) + (float)lead));}}
}
这个就是自定义的一个TextView
最终实现的一个是圆角 利用Xml布局
attrs实现其中的属性
Attrs.xml
<declare-styleable name="RectgleTextView"><attr name="shapeType" format="integer|enum"><enum name="rectangle" value="0" /><enum name="oval" value="1" /><enum name="LINE" value="2" /></attr><attr name="totalRadius" format="dimension" /><attr name="radiusTopLeft" format="dimension" /><attr name="radiusBottomLeft" format="dimension" /><attr name="radiusTopRight" format="dimension" /><attr name="radiusBottomRight" format="dimension" /><attr name="topLeft" format="dimension" /><attr name="topRight" format="dimension" /><attr name="bottomLeft" format="dimension" /><attr name="bottomRight" format="dimension" /><attr name="strColor" format="color" /><attr name="strWidth" format="dimension" /><attr name="solidBac" format="color" /><attr name="textPadding" format="dimension" /><attr name="textLeft" format="string" /><attr name="textRight" format="string" /><attr name="iconColor" format="reference|color" /><attr name="textLeftColor" format="reference|color" /><attr name="textRightColor" format="reference|color" /><attr name="textLeftSize" format="dimension" /><attr name="textRightSize" format="dimension" /><attr name="textLeftStyle"><enum name="bold" value="1" /><enum name="italic" value="2" /></attr><attr name="textRightStyle"><enum name="bold" value="1" /><enum name="italic" value="2" /></attr><attr name="textCenterStyle"><enum name="bold" value="1" /><enum name="italic" value="2" /></attr><attr name="autoMaxHeight" format="boolean" /><attr name="gradientOrientation"><enum name="top_bottom" value="0" /><enum name="tp_bl" value="1" /><enum name="right_left" value="2" /><enum name="br_tl" value="3" /><enum name="bottom_top" value="4" /><enum name="bl_tr" value="5" /><enum name="left_right" value="6" /><enum name="tl_br" value="7" /></attr><attr name="startSolid" format="reference|color" /><attr name="centerSolid" format="reference|color" /><attr name="endSolid" format="reference|color" /><!-- <attr name="fang_zheng_regular_font" format="boolean" />--><!-- <attr name="fang_zheng_bold_font" format="boolean" />--></declare-styleable>
里面的具体工具类SpanContainer.ShapeBuilder/EasyVerticalCenterSpan
EasyVerticalCenterSpan
public class EasyVerticalCenterSpan extends ReplacementSpan {private final float fontSizeSp; //字体大小spprivate final float paintColor;public EasyVerticalCenterSpan(float fontSizeSp, float paintColor) {this.fontSizeSp = fontSizeSp;this.paintColor = paintColor;}@Overridepublic int getSize(Paint paint, CharSequence text, int start, int end, Paint.FontMetricsIntfm) {paint.setTextSize(fontSizeSp);text = text.subSequence(start, end);return (int) paint.measureText(text.toString());}@Overridepublic void draw(Canvas canvas, CharSequence text, int start, int end, float x, int top, inty, int bottom, Paint paint) {text = text.subSequence(start, end);paint.setTextSize(fontSizeSp);paint.setColor((int) paintColor);Paint.FontMetricsInt fm = paint.getFontMetricsInt();canvas.drawText(text.toString(), x, y - (((y + fm.descent + y + fm.ascent) >> 1) - ((bottom + top) >> 1)), paint); //此处重新计算y坐标，使字体居中}
}ShapeBuilder
public class ShapeBuilder {private GradientDrawable drawable;private AttrContainer container;private boolean isOperate;private ShapeBuilder() {drawable = new GradientDrawable();}public static ShapeBuilder create() {return new ShapeBuilder();}/*** 设置shape的type类型** @param type RECTANGLE,OVAL,LINE,RING*/public ShapeBuilder Type(int type) {drawable.setShape(type);if (container != null) {container.type = type;}return this;}/*** 设置Stroke** @param px -width,需要px值* @param color -color值*/public ShapeBuilder Stroke(int px, int color) {drawable.setStroke(px, color);if (container != null) {container.stokewidth = px;container.stokeColor = color;}return this;}/*** 边线** @param px -width,需要px值* @param color -color值* @param dashWidth -dashWidth 横线的宽度* @param dashGap -dashGap 点与点间的距离*/public ShapeBuilder Stroke(int px, int color, int dashWidth, int dashGap) {drawable.setStroke(px, color, dashWidth, dashGap);if (container != null) {container.stokewidth = px;container.stokeColor = color;container.dashWidth = dashWidth;container.dashGap = dashGap;}return this;}/*** @param color -背景颜色*/public ShapeBuilder Soild(int color) {drawable.setColor(color);if (container != null) {container.soild = color;}return this;}/*** @param px -圆角，四个角保持一致*/public ShapeBuilder Radius(float px) {drawable.setCornerRadius(px);if (container != null) {container.setRadius(px, px, px, px);}return this;}/*** 圆角** @param topleft 左上* @param topright 右上* @param botleft 左下* @param botright 右下* @Deprecated 左下和右下颠倒了，换用RoundRadius()方法*/@Deprecatedpublic ShapeBuilder Radius(float topleft, float topright, float botleft, float botright) {drawable.setCornerRadii(new float[]{topleft, topleft, topright, topright, botleft,botleft, botright, botright});if (container != null) {container.setRadius(topleft, topright, botleft, botright);}return this;}/*** 圆角** @param topleft 左上* @param topright 右上* @param botleft 左下* @param botright 右下*/public ShapeBuilder RoundRadius(float topleft, float topright, float botleft, float botright) {drawable.setCornerRadii(new float[]{topleft, topleft, topright, topright, botright,botright, botleft, botleft});if (container != null) {container.setRadius(topleft, topright, botleft, botright);}return this;}/*** 渐变，默认的Linear渐变** @param startColor 开始颜色* @param centerColor 中心颜色* @param endColor 结束颜色*/public ShapeBuilder Gradient(int startColor, int centerColor, int endColor) {return GradientInit(GradientDrawable.Orientation.TOP_BOTTOM, startColor, centerColor,endColor);}/*** 渐变，设置角度(实质调用的Gradient(GradientDrawable.Orientation orientation, int startColor, int* centerColor, int endColor)方法)** @param angle 角度，需要是45的整数倍* @param startColor 开始颜色* @param centerColor 中心颜色* @param endColor 结束颜色*/public ShapeBuilder Gradient(int angle, int startColor, int centerColor, int endColor) {angle = angle % 360;GradientDrawable.Orientation orientation = null;switch (angle) {case 0:orientation = GradientDrawable.Orientation.LEFT_RIGHT;break;case 45:orientation = GradientDrawable.Orientation.BL_TR;break;case 90:orientation = GradientDrawable.Orientation.BOTTOM_TOP;break;case 135:orientation = GradientDrawable.Orientation.BR_TL;break;case 180:orientation = GradientDrawable.Orientation.RIGHT_LEFT;break;case 225:orientation = GradientDrawable.Orientation.TR_BL;break;case 270:orientation = GradientDrawable.Orientation.TOP_BOTTOM;break;case 315:orientation = GradientDrawable.Orientation.TL_BR;break;}return Gradient(orientation, startColor, centerColor, endColor);}/*** 渐变，设置渐变方向** @param orientation 方向支持类型* 0-LEFT_RIGHT* 45-BL_TR* 90-BOTTOM_TOP* 135-BR_TL* 180-RIGHT_LEFT* 225-TR_BL* 270-TOP_BOTTOM* 315-TL_BR* @param startColor 开始颜色* @param centerColor 中心颜色* @param endColor 结束颜色*/public ShapeBuilder Gradient(GradientDrawable.Orientation orientation, int startColor, intcenterColor, int endColor) {return GradientInit(orientation, startColor, centerColor, endColor);}/*** 兼容低版本，重新构造drawable，对应调用operateMethod方法重新build，* 保证新的drawable与原始drawabel相同*/private ShapeBuilder GradientInit(GradientDrawable.Orientation orientation, int startColor, intcenterColor, int endColor) {if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {drawable.setOrientation(orientation);drawable.setColors(new int[]{startColor, centerColor, endColor});} else {isOperate = true;drawable = new GradientDrawable(orientation, new int[]{startColor, centerColor,endColor});}return this;}/*** 兼容低版本，重新构造drawable，对应调用operateMethod方法重新build，* 保证新的drawable与原始drawabel相同*/public ShapeBuilder GradientInit(GradientDrawable.Orientation orientation, int... colors) {if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {drawable.setOrientation(orientation);drawable.setColors(colors);} else {isOperate = true;drawable = new GradientDrawable(orientation, colors);}return this;}/*** 渐变type** @param type linear (default.)-LINEAR_GRADIENT* circular-RADIAL_GRADIENT* sweep-SWEEP_GRADIENT* @return*/public ShapeBuilder GradientType(int type) {drawable.setGradientType(type);if (container != null) {container.gradientType = type;}return this;}/*** 这两个属性只有在type不为linear情况下起作用。** @param x 相对X的渐变位置* @param y 相对Y的渐变位置* @return*/public ShapeBuilder GradientCenter(float x, float y) {drawable.setGradientCenter(x, y);if (container != null) {container.gradientCenterX = x;container.gradientCenterY = y;}return this;}/*** 该属性只有在type="radial"有效** @param radius 渐变颜色的半径* @return*/public ShapeBuilder GradientRadius(float radius) {drawable.setGradientRadius(radius);if (container != null) {container.gradinetRadius = radius;}return this;}/*** 设置size** @param width 宽* @param height 高* @return*/public ShapeBuilder setSize(int width, int height) {drawable.setSize(width, height);if (container != null) {container.width = width;container.height = height;}return this;}/*** 传入View，设置Bac*/public void build(View v) {build();if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {v.setBackground(drawable);} else {v.setBackgroundDrawable(drawable);}}public static void clearBg(View v) {v.setBackgroundResource(0);}/*** 返回构建的drawable*/public GradientDrawable build() {if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {return drawable;} else {if (isOperate) {operateMethod();}}return drawable;}/*** Build.VERSION_CODES.JELLY_BEAN（4.1）以下渐变需要重新构造drawable，所以需要重新build*/private void operateMethod() {if (container != null) {this.Type(container.type).Stroke(container.stokewidth, container.stokeColor, container.dashWidth,container.dashGap).Radius(container.topLeft, container.topRight, container.botLeft, container.botRight).setSize(container.width, container.height).GradientType(container.gradientType).GradientCenter(container.gradientCenterX, container.gradientCenterY).GradientRadius(container.gradinetRadius);if (container.soild != 0) {Soild(container.soild);}}}private class AttrContainer {public int type;public int stokewidth;public int stokeColor;public int dashWidth;public int dashGap;public int soild;public float topLeft, topRight, botLeft, botRight;public int width, height;public int gradientType;public float gradinetRadius;public float gradientCenterX, gradientCenterY;private void setRadius(float topleft, float topright, float botleft, float botright) {this.topLeft = topleft;this.topRight = topright;this.botLeft = botleft;this.botRight = botright;}}
}
SpanContainer
public class SpanContainer {public List<Object> spans;public int start;public int end;public int flag;public SpanContainer(List<Object> spans, int start, int end, int flag) {this.spans = spans;this.start = start;this.end = end;this.flag = flag;}public SpanContainer(Object spans, int start, int end, int flag) {this.spans = new ArrayList<>();this.spans.add(spans);this.start = start;this.end = end;this.flag = flag;}
}
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