temp
This commit is contained in:
luyao
parent
878445b910
commit
2244ff4e8a
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@ -38,6 +38,7 @@
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<activity android:name="luyao.util.ktx.ui.CommonExtActivity"/>
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<activity android:name="luyao.util.ktx.ui.ShellExtActivity"/>
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<activity android:name="luyao.util.ktx.ui.LifeCycleActivity"/>
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<activity android:name="luyao.util.ktx.ui.KtxSpanActivity"/>
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</application>
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</manifest>
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@ -16,6 +16,7 @@ class ExtActivity : CommonListActivity() {
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add(ItemBean("AppExt", ToastExtActivity::class.java))
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add(ItemBean("CommonExt", CommonExtActivity::class.java))
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add(ItemBean("IntentExt", IntentExtActivity::class.java))
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add(ItemBean("KtxSpan",KtxSpanActivity::class.java))
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add(ItemBean("ListenerExtActivity", ListenerExtActivity::class.java))
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add(ItemBean("PermissionExt", PermissionExtActivity::class.java))
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add(ItemBean("SharedPreferencesExt", SharedPreferencesActivity::class.java))
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@ -0,0 +1,41 @@
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package luyao.util.ktx.ui
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import android.graphics.Color
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import android.text.Layout
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import kotlinx.android.synthetic.main.activity_ktx_span.*
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import kotlinx.android.synthetic.main.title_layout.*
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import luyao.ktx.R
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import luyao.util.ktx.base.BaseActivity
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import luyao.util.ktx.core.span.KtxSpan
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/**
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* Created by luyao
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* on 2019/8/7 14:07
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*/
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class KtxSpanActivity : BaseActivity() {
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override fun getLayoutResId() = R.layout.activity_ktx_span
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override fun initView() {
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mToolbar.title = "KtxSpan"
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setKtxSpan()
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}
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override fun initData() {
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}
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private fun setKtxSpan() {
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KtxSpan().with(spanTv).show {
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text(
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"SpanUtils",
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foregroundColor = Color.YELLOW,
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backgroundColor = Color.LTGRAY,
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alignment = Layout.Alignment.ALIGN_CENTER
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)
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text("前景色", foregroundColor = Color.GREEN)
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text("背景色", backgroundColor = Color.LTGRAY)
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text("行高居中对齐", lineHeight = 2 * spanTv.lineHeight, backgroundColor = Color.LTGRAY)
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text("字体大小", textSize = 40)
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}
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}
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}
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@ -0,0 +1,17 @@
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<?xml version="1.0" encoding="utf-8"?>
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<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
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android:orientation="vertical"
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android:layout_width="match_parent"
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android:layout_height="match_parent">
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<include layout="@layout/title_layout"/>
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<TextView
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android:id="@+id/spanTv"
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android:layout_width="match_parent"
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android:layout_height="match_parent"
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android:layout_margin="5dp"
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android:layout_marginTop="20dp"
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android:textSize="16sp"/>
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</LinearLayout>
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@ -0,0 +1,51 @@
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package luyao.util.ktx.core.span
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import android.graphics.Paint
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import android.text.style.LineHeightSpan
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/**
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* Created by luyao
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* on 2019/8/7 16:07
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*/
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class KtxLineHeightSpan(val height: Int,val verticalAlignment:Int) : LineHeightSpan {
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companion object{
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val ALIGN_CENTER = 2
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val ALIGN_TOP = 3
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}
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override fun chooseHeight(
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text: CharSequence?,
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start: Int,
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end: Int,
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spanstartv: Int,
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lineHeight: Int,
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fm: Paint.FontMetricsInt
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) {
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var need = height - (lineHeight + fm.descent - fm.ascent - spanstartv)
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if (need > 0) {
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when (verticalAlignment) {
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ALIGN_TOP -> fm.descent += need
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ALIGN_CENTER -> {
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fm.descent += need / 2
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fm.ascent -= need / 2
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}
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else -> fm.ascent -= need
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}
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}
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need = height - (lineHeight + fm.bottom - fm.top - spanstartv)
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if (need > 0) {
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when (verticalAlignment) {
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ALIGN_TOP -> fm.bottom += need
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ALIGN_CENTER -> {
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fm.bottom += need / 2
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fm.top -= need / 2
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}
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else -> fm.top -= need
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}
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}
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}
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}
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@ -1,9 +1,81 @@
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package luyao.util.ktx.core.span
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import android.graphics.Typeface
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import android.text.Layout
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import android.text.SpannableStringBuilder
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import android.text.Spanned
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import android.text.style.*
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import android.widget.TextView
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/**
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* Created by luyao
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* on 2019/8/6 16:46
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*/
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class KtxSpan {
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private val LINE_SEPARATOR = System.getProperty("line.separator")
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private var mText: CharSequence = ""
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private var mTextSize : Int = -1
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private var mLineHeight = -1
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private var mForegroundColor = -1
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private var mBackgroundColor = -1
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private var isBold = false
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private var mAlignment: Layout.Alignment? = null
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private var mFlag = Spanned.SPAN_EXCLUSIVE_EXCLUSIVE
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lateinit var mTextView: TextView
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val mSpanBuilder by lazy { SpannableStringBuilder() }
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fun with(view: TextView): KtxSpan {
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this.mTextView = view
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return this
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}
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fun text(
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text: CharSequence,
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textSize:Int = -1,
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lineHeight: Int = -1,
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foregroundColor: Int = -1,
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backgroundColor: Int = -1,
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alignment: Layout.Alignment? = null
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): KtxSpan {
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mText = "$text$LINE_SEPARATOR"
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mTextSize = textSize
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mLineHeight = lineHeight
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mForegroundColor = foregroundColor
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mBackgroundColor = backgroundColor
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mAlignment = alignment
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updateSpan()
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return this
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}
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private fun updateSpan() {
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if (mText.isEmpty()) return
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val start = mSpanBuilder.length
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mSpanBuilder.append(mText)
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val end = mSpanBuilder.length
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if (mTextSize != -1)
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mSpanBuilder.setSpan(AbsoluteSizeSpan(mTextSize,true),start,end,mFlag)
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if (mLineHeight != -1)
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mSpanBuilder.setSpan(KtxLineHeightSpan(mLineHeight,KtxLineHeightSpan.ALIGN_CENTER), start, end, mFlag)
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if (mForegroundColor != -1)
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mSpanBuilder.setSpan(ForegroundColorSpan(mForegroundColor), start, end, mFlag)
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if (mBackgroundColor != -1)
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mSpanBuilder.setSpan(BackgroundColorSpan(mBackgroundColor), start, end, mFlag)
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if (isBold)
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mSpanBuilder.setSpan(StyleSpan(Typeface.BOLD), start, end, mFlag)
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mAlignment?.let { mSpanBuilder.setSpan(AlignmentSpan.Standard(it), start, end, mFlag) }
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}
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inline fun show(func: KtxSpan.() -> Unit): KtxSpan {
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func()
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mTextView.text = mSpanBuilder
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return this
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}
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}
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}
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@ -0,0 +1,46 @@
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package luyao.util.ktx.core.span
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import android.graphics.Canvas
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import android.graphics.Paint
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import android.text.style.ReplacementSpan
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/**
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* Created by luyao
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* on 2019/8/7 16:42
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*/
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class KtxTextSizeSpan(val textSize: Int, val verticalOffset: Int) : ReplacementSpan() {
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private lateinit var mPaint: Paint
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override fun getSize(paint: Paint, text: CharSequence?, start: Int, end: Int, fm: Paint.FontMetricsInt?): Int {
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mPaint = Paint(paint)
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mPaint.textSize = textSize.toFloat()
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fm?.let {
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if (textSize > paint.textSize) {
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val newFm = mPaint.fontMetricsInt
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fm.descent = newFm.descent
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fm.ascent = newFm.ascent
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fm.top = newFm.top
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fm.bottom = newFm.bottom
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}
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}
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return mPaint.measureText(text, start, end).toInt()
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}
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override fun draw(
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canvas: Canvas,
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text: CharSequence,
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start: Int,
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end: Int,
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x: Float,
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top: Int,
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y: Int,
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bottom: Int,
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paint: Paint
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) {
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val baseLine = (y + verticalOffset).toFloat()
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canvas.drawText(text, start, end, x, baseLine, mPaint)
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}
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}
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