Android一个强大的自定义span(DslDrawableSpan), 以及一个SpannableStringBuilder使用工具.
本库提供2个自定义span(DslTextSpan DslDrawableSpan) 和一个SpannableStringBuilder工具类DslSpan
这个类完全自定义继承ReplacementSpan, 功能强大, 使用简便:
- 支持
绘制替换原有的文本内容 - 支持
Drawable绘制 - 支持文本的
Gravity属性(类似于TextView中的gravity) - 支持宽度的
Weight属性(类似于LinearLayout中的weight) - 支持
margin属性 - 支持
padding属性 - 支持
click点击事件(不影响TextView原有的OnClickListener事件)
支持的属性如下:
/**绘制文本时的文本大小*/
@Px
var textSize: Float = -1f
/**绘制文本时的文本颜色*/
@ColorInt
var textColor: Int = undefined_color
/**文本绘制的重力*/
var textGravity: Int = Gravity.LEFT or Gravity.BOTTOM
/**需要替换显示的文本, 为空则绘制默认append的文本*/
var showText: CharSequence? = null
/**强制指定span的宽度*/
var spanWidth: Int = undefined_int
/**强制指定span的高度*/
var spanHeight: Int = undefined_int
/**限制span的最大宽度*/
var spanMaxWidth: Int = undefined_int
/**span相对于[TextView]的比例, 不支持平分. 需要[DslSpanTextView]支持*/
var spanWeight: Float = undefined_float
/**使用weight计算最大宽度的限制*/
var spanMaxWeight: Float = undefined_float
/**宽度等于高度*/
var widthSameHeight = false
/**填充背景[Drawable], 在最下面绘制*/
var fillBackgroundDrawable: Drawable? = null
/**背景[Drawable], 在文本下面绘制*/
var backgroundDrawable: Drawable? = null
/**前景[Drawable], 在文本上面绘制*/
var foregroundDrawable: Drawable? = null
/**填充的颜色*/
var gradientSolidColor = undefined_color
/**边框的颜色*/
var gradientStrokeColor = undefined_color
/**边框的宽度*/
var gradientStrokeWidth = 1 * dp
/**圆角大小*/
var gradientRadius = 25 * dp
//影响宽度, 背景偏移, 文本偏移
var marginLeft: Int = 0
var marginRight: Int = 0
var marginTop: Int = 0
var marginBottom: Int = 0
//影响宽度, 影响文本与背景的距离
var paddingLeft: Int = 0
var paddingRight: Int = 0
var paddingTop: Int = 0
var paddingBottom: Int = 0
//整体偏移
var offsetX: Float = 0f
var offsetY: Float = 0f
//单独文本偏移
var textOffsetX: Float = 0f
var textOffsetY: Float = 0f
/**单击事件回调, 需要[SpanClickMethod]支持*/
var spanClickAction: ((view: View, span: DslDrawableSpan) -> Unit)? = null这个类组合了系统各个CharacterStyle的样式.
支持的属性如下:
/**文本颜色*/
@ColorInt
var textColor: Int = undefined_color
/**背景颜色*/
@ColorInt
var bgColor: Int = undefined_color
/**字体大小*/
@Px
var textSize: Float = undefined_float
/**字体缩放*/
var relativeSizeScale: Float = undefined_float
/**删除线*/
var deleteLine: Boolean = false
/**下划线*/
var underline: Boolean = false
/**粗体*/
var textBold: Boolean = false
/**斜体*/
var textItalic: Boolean = false
/**x轴缩放*/
var scaleX: Float = undefined_float
/**文本基线偏移*/
var textBaselineShift: Int = 0
/**上标*/
var isSuperscript: Boolean = false
/**下标*/
var isSubscript: Boolean = false
/**首行缩进*/
var leadingFirst: Int = 0
/**其他行缩进*/
var leadingRest: Int = 0
/**多少行算首行*/
var leadingFirstLineCount: Int = 1
/**需要[DslTextView]支持*/
var leadingFirstWeight: Float = undefined_float
var leadingRestWeight: Float = undefined_float
/**单击事件回调, 需要[SpanClickMethod]支持*/
var onClickSpan: ((view: View, span: DslTextSpan) -> Unit)? = null注意: 如果需要
span的点击事件, 请调用SpanClickMethod.install(textView), 方可生效. 如果需要weight的属性的支持,请使用DslSpanTextView替换原来的TextView
这个类是SpannableStringBuilder的工具类, 用于方便添加span.
实战使用如下:
tv(R.id.text1).text = span {
append("默认无样式的标准文本")
}
tv(R.id.text2).text = span {
append("系统")
append("Span") {
fontSize = 30 * dpi
foregroundColor = Color.RED
}
append("样式") {
backgroundColor = Color.GREEN
scaleX = 2f
}
}
tv(R.id.text3).text = span {
append("带Drawable")
drawable {
backgroundDrawable = resources.getDrawable(R.mipmap.ic_launcher)
}
text("自绘Text") {
textColor = Color.WHITE
bgColor = Color.BLACK
}
drawable {
showText = "自绘Text, 支持Gravity"
textColor = Color.WHITE
spanWidth = ViewGroup.LayoutParams.WRAP_CONTENT
marginLeft = 20 * dpi
paddingLeft = 20 * dpi
paddingRight = 20 * dpi
textGravity = Gravity.TOP or Gravity.CENTER_HORIZONTAL
backgroundDrawable = ColorDrawable(Color.DKGRAY)
}
}
tv(R.id.text4).text = span {
drawable {
showText = "支持Weight"
spanWeight = 0.33333333f
spanHeight = 30 * dpi
fillBackgroundDrawable = ColorDrawable(Color.RED)
textGravity = Gravity.CENTER
}
drawable {
showText = "各占三分之一"
spanWeight = 0.33333333f
spanHeight = 40 * dpi
fillBackgroundDrawable = ColorDrawable(Color.GREEN)
textGravity = Gravity.CENTER
}
drawable {
showText = "1/3"
spanWeight = 0.33333333f
spanHeight = 50 * dpi
fillBackgroundDrawable = ColorDrawable(Color.BLUE)
textColor = Color.WHITE
textGravity = Gravity.CENTER
}
}
tv(R.id.text5).apply {
SpanClickMethod.install(this)
setOnClickListener {
Toast.makeText(this@MainActivity, "点击View", Toast.LENGTH_SHORT).show()
}
text = span {
drawable {
showText = "支持点击"
spanWeight = 0.5f
backgroundDrawable = ColorDrawable(Color.RED)
textGravity = Gravity.CENTER
}
drawable {
showText = "点我试试?"
spanWeight = 0.5f
textSize = 40 * dp
backgroundDrawable = ColorDrawable(Color.GREEN)
textGravity = Gravity.CENTER
textColor = Color.WHITE
spanClickAction = { view, span ->
Toast.makeText(this@MainActivity, "点击Span", Toast.LENGTH_SHORT).show()
}
}
}
}
tv(R.id.text6).text = span {
append("自绘Drawable")
drawable {
backgroundDrawable = resources.getDrawable(R.mipmap.ic_launcher)
}
drawable {
foregroundDrawable = resources.getDrawable(R.mipmap.ic_launcher_round)
}
drawable {
backgroundDrawable = resources.getDrawable(R.mipmap.ic_launcher)
foregroundDrawable = resources.getDrawable(R.mipmap.ic_launcher_round)
}
}
tv(R.id.text7).text = span {
append("支持空隙")
appendSpace(10 * dpi)
append("空隙大小")
appendSpace(20 * dpi, Color.RED)
append("空隙颜色")
appendSpace(30 * dpi, Color.GREEN)
append("支持空隙")
appendSpace(40 * dpi, Color.BLUE)
}
tv(R.id.text8).text = span {
drawable {
showText = "支持Margin"
marginLeft = 20 * dpi
marginRight = 20 * dpi
backgroundDrawable = ColorDrawable(Color.RED)
}
drawable {
showText = "支持Padding"
paddingLeft = 20 * dpi
paddingRight = 20 * dpi
backgroundDrawable = ColorDrawable(Color.GREEN)
}
}allprojects {
repositories {
...
maven { url 'https://jitpack.io' }
}
}dependencies {
implementation 'com.github.angcyo:DslSpan:1.1.0'
}群内有各(pian)种(ni)各(jin)样(qun)的大佬,等你来撩.
