162 lines
4.4 KiB
Kotlin
162 lines
4.4 KiB
Kotlin
package com.sw.dualscreen.ext
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import android.content.Context
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import android.content.res.Resources
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import android.graphics.Bitmap
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import android.graphics.BitmapFactory
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import android.graphics.ImageFormat
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import android.graphics.Rect
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import android.graphics.YuvImage
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import android.util.TypedValue
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import android.view.View
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import android.view.inputmethod.EditorInfo
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import android.view.inputmethod.InputMethodManager
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import android.widget.EditText
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import androidx.annotation.Dimension
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import androidx.camera.core.ImageProxy
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import kotlinx.coroutines.CoroutineScope
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import kotlinx.coroutines.Dispatchers
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import kotlinx.coroutines.Job
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import kotlinx.coroutines.delay
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import kotlinx.coroutines.launch
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import java.io.ByteArrayOutputStream
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import java.math.BigDecimal
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import java.math.RoundingMode
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/**
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* 将 Int 值转换为 dp 值
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*/
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val Int.dp: Int
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@Dimension(unit = Dimension.DP)
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get() = TypedValue.applyDimension(
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TypedValue.COMPLEX_UNIT_DIP,
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this.toFloat(),
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Resources.getSystem().displayMetrics
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).toInt()
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/**
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* 将 Float 值转换为 dp 值
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*/
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val Float.dp: Float
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@Dimension(unit = Dimension.DP)
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get() = TypedValue.applyDimension(
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TypedValue.COMPLEX_UNIT_DIP,
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this,
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Resources.getSystem().displayMetrics
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)
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/**
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* 将 Int 值转换为 sp 值
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*/
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val Int.sp: Float
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@Dimension(unit = Dimension.SP)
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get() = TypedValue.applyDimension(
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TypedValue.COMPLEX_UNIT_SP,
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this.toFloat(),
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Resources.getSystem().displayMetrics
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)
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/**
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* 将 Float 值转换为 sp 值
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*/
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val Float.sp: Float
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@Dimension(unit = Dimension.SP)
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get() = TypedValue.applyDimension(
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TypedValue.COMPLEX_UNIT_SP,
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this,
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Resources.getSystem().displayMetrics
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)
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fun Double.roundedDecimalPlace(num: Int = 2): Double {
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return BigDecimal(this).setScale(num, RoundingMode.HALF_UP).toDouble()
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}
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fun Double?.format2String(): String = this.format2String(1)
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fun Double?.format2String(num:Int): String = "%.${num}f".format(this?:0.0)
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// 添加扩展函数
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fun ImageProxy.toSafeBitmap(): Bitmap {
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val yBuffer = planes[0].buffer // Y
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val uBuffer = planes[1].buffer // U
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val vBuffer = planes[2].buffer // V
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val ySize = yBuffer.remaining()
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val uSize = uBuffer.remaining()
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val vSize = vBuffer.remaining()
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val nv21 = ByteArray(ySize + uSize + vSize)
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// Y
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yBuffer.get(nv21, 0, ySize)
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// U/V
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vBuffer.get(nv21, ySize, vSize)
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uBuffer.get(nv21, ySize + vSize, uSize)
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val yuvImage = YuvImage(nv21, ImageFormat.NV21, this.width, this.height, null)
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val out = ByteArrayOutputStream()
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yuvImage.compressToJpeg(Rect(0, 0, this.width, this.height), 100, out)
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val imageBytes = out.toByteArray()
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return BitmapFactory.decodeByteArray(imageBytes, 0, imageBytes.size)
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}
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fun View.hideKeyboard() {
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val imm = context.getSystemService(Context.INPUT_METHOD_SERVICE) as InputMethodManager
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imm.hideSoftInputFromWindow(this.windowToken, 0)
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this.clearFocus() // 清除焦点避免键盘再次弹出
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}
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fun EditText.addOnActionSearchListener(searchCallback: () -> Unit) {
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setOnEditorActionListener { v, actionId, event ->
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if (actionId == EditorInfo.IME_ACTION_SEARCH) {
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// 处理搜索逻辑
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searchCallback()
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return@setOnEditorActionListener true // 阻止事件继续传递
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}
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return@setOnEditorActionListener false
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}
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}
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//fun View.clickWithDebounce(delay: Long = 500, action: () -> Unit) {
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// var job: Job? = null
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// setOnClickListener {
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// job?.cancel()
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// job = CoroutineScope(Dispatchers.Main).launch {
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// delay(delay)
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// action()
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// }
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// }
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//}
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/**
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* 极简版防重复点击扩展函数
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* @param delay 防抖时间（默认300ms）
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* @param action 点击执行逻辑
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*/
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fun View.clickWithDebounce(delay: Long = 300, action: () -> Unit) {
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setOnClickListener {
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// 用View的tag存储是否可点击的状态（默认可点击）
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if (tag as? Boolean ?: true) {
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tag = false // 标记为不可点击
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action() // 立即执行点击逻辑
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// 启动协程，延迟后恢复可点击状态
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CoroutineScope(Dispatchers.Main).launch {
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delay(delay)
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tag = true // 恢复可点击
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}
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}
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}
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}
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fun View.visible() {
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visibility = View.VISIBLE
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}
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fun View.invisible() {
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visibility = View.INVISIBLE
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}
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fun View.gone() {
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visibility = View.GONE
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}
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