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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,19 +1,19 @@ | ||
| package com.angcyo.dsladapter.internal | ||
|
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| import android.graphics.Canvas | ||
| import android.graphics.Color | ||
| import android.graphics.Paint | ||
| import android.graphics.Rect | ||
| import android.os.Build | ||
| import android.text.Layout | ||
| import android.text.StaticLayout | ||
| import android.text.TextPaint | ||
| import android.view.ViewGroup | ||
| import com.angcyo.dsladapter.dp | ||
| import java.lang.Float.max | ||
| import kotlin.properties.ReadWriteProperty | ||
| import kotlin.reflect.KProperty | ||
|
|
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| /** | ||
| * | ||
| * 使用[StaticLayout]进行文本绘制, 支持[SpannableString] 支持换行 | ||
| * Email:[email protected] | ||
| * @author angcyo | ||
| * @date 2019/11/06 | ||
|
|
@@ -30,30 +30,63 @@ class DrawText { | |
| } | ||
| } | ||
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| /**画笔*/ | ||
| var textPaint: TextPaint by MakeLayoutProperty(TextPaint(Paint.ANTI_ALIAS_FLAG)) | ||
|
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| /**需要绘制的文本*/ | ||
| var drawText: CharSequence? by MakeLayoutProperty(null) | ||
|
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| /**文本大小*/ | ||
| var textSize: Float by MakeLayoutProperty(14 * dp) | ||
|
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| /**文本绘制的宽度*/ | ||
| /**文本允许绘制的宽度*/ | ||
| var textWidth: Int by MakeLayoutProperty(ViewGroup.LayoutParams.WRAP_CONTENT) | ||
|
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| /**文本颜色*/ | ||
| var textColor = Color.RED | ||
|
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| /**相对行间距，相对字体大小，1.5f表示行间距为1.5倍的字体高度。*/ | ||
| var spacingMult: Float by MakeLayoutProperty(1f) | ||
|
|
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| /**在基础行距上添加多少*/ | ||
| var spacingAdd: Float by MakeLayoutProperty(0f) | ||
| var includePad: Boolean by MakeLayoutProperty(false) | ||
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| var alignment: Layout.Alignment? by MakeLayoutProperty(Layout.Alignment.ALIGN_NORMAL) | ||
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| var _paint: TextPaint = TextPaint(Paint.ANTI_ALIAS_FLAG) | ||
| var _textLayout: Layout? = null | ||
| var _textLayout: StaticLayout? = null | ||
|
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| //--- | ||
|
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| fun getWidth() = makeLayout().width | ||
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| fun getHeight() = makeLayout().height | ||
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| fun getBounds(rect: Rect): Rect { | ||
| val layout = makeLayout() | ||
| rect.set(0, 0, layout.width, layout.height) | ||
| return rect | ||
| } | ||
|
|
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| //--- | ||
|
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| /**重新创建[StaticLayout]*/ | ||
| fun makeLayout(): StaticLayout { | ||
| val width = if (textWidth >= 0) textWidth else Int.MAX_VALUE | ||
| val layout = _makeLayout(width) | ||
| _textLayout = layout | ||
|
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| fun makeLayout(): Layout { | ||
| if (textWidth >= 0) { | ||
| //no op | ||
| } else { | ||
| //重新赋值宽度 | ||
| var maxWidth = 0f | ||
| for (line in 0 until layout.lineCount) { | ||
| maxWidth = max(layout.getLineWidth(line), maxWidth) | ||
| } | ||
| //wrap_content 重新计算宽度 | ||
| _textLayout = _makeLayout(maxWidth.toInt()) | ||
| } | ||
|
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| return _textLayout!! | ||
| } | ||
|
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| /**[width]宽度决定了行数 需要>=0*/ | ||
| fun _makeLayout(width: Int): StaticLayout { | ||
| //StaticLayout 只能用一次. | ||
|
|
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| /** | ||
|
|
@@ -69,35 +102,32 @@ class DrawText { | |
| * TextUtils.TruncateAt ellipsize : 从什么位置开始省略 | ||
| * int ellipsizedWidth : 超过多少开始省略 | ||
| * */ | ||
| _paint.textSize = textSize | ||
| val text = drawText ?: "" | ||
| val width = if (textWidth >= 0) textWidth else _paint.measureText(text.toString()).toInt() | ||
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| _textLayout = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) { | ||
| val layout = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) { | ||
| StaticLayout.Builder.obtain( | ||
| text, 0, text.length, _paint, | ||
| text, 0, text.length, textPaint, | ||
| width | ||
| ).run { | ||
| alignment?.run { | ||
| setAlignment(this) | ||
| } | ||
| setLineSpacing(spacingAdd, spacingMult) | ||
| setIncludePad(includePad) | ||
| //setMaxLines() | ||
| //setEllipsize() | ||
| build() | ||
| } | ||
| } else { | ||
| StaticLayout(text, _paint, width, alignment, spacingMult, spacingAdd, includePad) | ||
| StaticLayout(text, textPaint, width, alignment, spacingMult, spacingAdd, includePad) | ||
| } | ||
|
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| return _textLayout!! | ||
| return layout | ||
| } | ||
|
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| /**开始绘制*/ | ||
| fun onDraw(canvas: Canvas) { | ||
| if (drawText.isNullOrEmpty()) { | ||
| return | ||
| } | ||
| _paint.color = textColor | ||
|
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| /* | ||
| * Layout在绘制的时候, (0, 0) 坐标是文本左上角 | ||
| * Canvas.drawText, (0, 0) 坐标是文本Baseline的位置 | ||
|
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||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,3 +1,9 @@ | ||
| # 2022-10-27 | ||
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| `5.2.0` | ||
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| - 修复一些已知问题 | ||
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| # 2022-9-9 | ||
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| `5.1.3` | ||
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||
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