Android触屏校验
需求背景,在开机动画结束后弹出触屏校验 ：
效果图 :
实现方法 ：使用WindowManager在launcher上面添加View
具体代码:
import android.annotation.SuppressLint
import android.content.Context
import android.graphics.*
import android.view.Gravity
import android.view.MotionEvent
import android.view.View
import android.view.WindowManager
/**
* @ClassName ScreenTestSimple.java
* @author youdianxiaohuai
* @Description 触屏校验
* @createTime 2022年03月01日
*/
@SuppressLint("StaticFieldLeak")
object ScreenTestSimple {
//监听触屏校验完成
var onScreenTestOverListener: (() -> Unit)? = null
private lateinit var context: Context
private var touchPassed = false
private var content: View? = null
@Suppress("DEPRECATION")
private val params: WindowManager.LayoutParams by lazy {
val params = WindowManager.LayoutParams()
params.type = WindowManager.LayoutParams.TYPE_SYSTEM_ERROR
params.flags = WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE or
WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN
params.format = PixelFormat.TRANSLUCENT
params.width = WindowManager.LayoutParams.MATCH_PARENT
params.height = WindowManager.LayoutParams.MATCH_PARENT
params.x = 0
params.y = 0
params.gravity = Gravity.CENTER
params
}
private val windowManager: WindowManager by lazy {
context.applicationContext.getSystemService(Context.WINDOW_SERVICE) as WindowManager
}
/**
* 使用时调用start方法
*/
fun start(context: Context) {
this.context = context
content = TouchView(context)
//防止第二次调用时touchPassed = true
touchPassed = false
try {
//防止view没有被remove掉
windowManager.addView(content, params)
} catch (e: RuntimeException) {
windowManager.removeView(content)
}
}
/**
*触屏校验完成时调用
*
*/
private fun onFinish() {
windowManager.updateViewLayout(content, params)
onScreenTestOverListener?.invoke()
windowManager.removeView(content)
content = null
}
/**
* 触屏校验的VIEW
*/
class TouchView(context: Context) : View(context) {
private val COL_WIDTH_HEIGHT = 31
private val screenDisplay: Point by lazy {
val point = Point()
windowManager.defaultDisplay.getRealSize(point)
point
}
private val screenWidth by lazy { screenDisplay.x }
private val screenHeight by lazy { screenDisplay.y }
private val matrixBitmap: Bitmap by lazy {
Bitmap.createBitmap(screenWidth, screenHeight, Bitmap.Config.RGB_565)
}
private val matrixCanvas: Canvas by lazy {
val canvas = Canvas(matrixBitmap)
canvas.drawColor(-1)
canvas
}
private val widthBasis: Int by lazy { screenWidth / COL_WIDTH_HEIGHT }
private val heightBasis: Int by lazy { screenHeight / COL_WIDTH_HEIGHT }
private val widthBasisCross: Int by lazy { 2 * (widthBasis - 2) }
private val heightBasisCross: Int by lazy { widthBasisCross }
private val colWidth: Float by lazy { screenWidth.toFloat() / widthBasis }
private val colHeight: Float by lazy { screenHeight.toFloat() / heightBasis }
private val widthCross: Float by lazy { colWidth / 2.0f }
private val heightCross: Float by lazy { (screenHeight - colHeight) / (4 + (widthBasisCross - 1)) }
private val draw: Array<IntArray> by lazy { Array(heightBasis) { IntArray(widthBasis) } }
private val isDrawArea: Array<IntArray> by lazy { Array(heightBasis) { IntArray(widthBasis) } }
private val drawCross = IntArray(2 * heightBasisCross)
private var touchedX = 0.0f
private var touchedY = 0.0f
private var preTouchedX = 0.0f
private var preTouchedY = 0.0f
private var isTouchDown = false
private val linePaint: Paint by lazy {
val linePaint = Paint()
linePaint.isAntiAlias = true
linePaint.isDither = true
linePaint.style = Paint.Style.STROKE
linePaint.strokeJoin = Paint.Join.ROUND
linePaint.strokeCap = Paint.Cap.SQUARE
linePaint.strokeWidth = 5.0f
val localDashPathEffect = DashPathEffect(floatArrayOf(5.0f, 5.0f), 1.0f)
linePaint.pathEffect = localDashPathEffect
linePaint.color = -16777216
linePaint
}
private val clickPaint: Paint by lazy {
val clickPaint = Paint()
clickPaint.isAntiAlias = false
clickPaint.style = Paint.Style.FILL
clickPaint.color = -16711936
clickPaint.xfermode = PorterDuffXfermode(PorterDuff.Mode.MULTIPLY)
clickPaint
}
private val emptyPaint: Paint by lazy {
val emptyPaint = Paint()
emptyPaint.isAntiAlias = false
emptyPaint.color = -1
emptyPaint
}
/**
* 处理滑动点击事件
*/
@SuppressLint("ClickableViewAccessibility")
override fun onTouchEvent(event: MotionEvent): Boolean {
if (event.getToolType(0) == 2 || touchPassed) {
return if (touchPassed) {
super.onTouchEvent(event)
} else {
true
}
}
when (event.action) {
MotionEvent.ACTION_DOWN -> drawDown(event)
MotionEvent.ACTION_UP -> drawUp(event)
MotionEvent.ACTION_MOVE -> drawMove(event)
else -> {
}
}
return true
}
override fun onDraw(canvas: Canvas) {
canvas.drawBitmap(matrixBitmap, 0.0f, 0.0f, null)
}
init {
val paint1 = Paint()
val paint2 = Paint()
paint1.color = -16777216
paint2.color = -16777216
paint2.style = Paint.Style.STROKE
//先全部画格子
for (i in 0..heightBasis) {
val y = (colHeight * i)
matrixCanvas.drawLine(0.0f, y, screenWidth.toFloat(), y, paint1)
}
for (i in 0..widthBasis) {
val x = (colWidth * i)
matrixCanvas.drawLine(x, 0.0f, x, screenHeight.toFloat(), paint1)
}
//把中间涂白 480时的涂白高度范围如果不上下缩小1会少点线,但是600的不会,应该是精度问题,其他也会,全部都这样好了
matrixCanvas.drawRect(
1 + colWidth, 1 + colHeight,
colWidth * (widthBasis - 1) - 1, colHeight * (heightBasis - 1) - 1, emptyPaint
)
//记录进数组
for (i in 0 until heightBasis) {
for (j in 0 until widthBasis) {
draw[i][j] = 0
if (i == 0 || i == heightBasis - 1 || j == 0 || j == widthBasis - 1) {
isDrawArea[i][j] = 1
}
}
}
//再画斜向和记录进数组
for (i in 0 until heightBasisCross) {
val x1 = (widthCross * (i + 2))
val y1 = heightCross * (i + 2)
matrixCanvas.drawRect(x1, y1, x1 + colWidth / 2, y1 + colHeight, paint2)
drawCross[i] = 0
val x3 = (widthCross * (i + 2))
val y3 = (screenHeight - (colHeight + heightCross * (i + 2)))
matrixCanvas.drawRect(x3, y3, x3 + colWidth / 2, y3 + colHeight, paint2)
drawCross[i + heightBasisCross] = 0
}
}
private fun isPass(): Boolean {
for (i in 0 until heightBasis) {
for (j in 0 until widthBasis) {
if (isDrawArea[i][j] == 1) {
if (draw[i][j] == 0) {
return false
}
}
}
}
return true
}
private fun isPassCross(): Boolean {
for (i in 0 until 2 * heightBasisCross) {
if (drawCross[i] == 0) {
return false
}
}
return true
}
private fun drawDown(event: MotionEvent) {
touchedX = event.x
touchedY = event.y
isTouchDown = drawRect(touchedX, touchedY, clickPaint)
}
private fun drawRect(x: Float, y: Float, paint: Paint): Boolean {
val xIndex = (x / colWidth).toInt()
val yIndex = (y / colHeight).toInt()
if (xIndex >= 0 && yIndex >= 0 && xIndex < widthBasis && yIndex < heightBasis) {
if (draw[yIndex][xIndex] == 0) {
draw[yIndex][xIndex] = 1
if (isDrawArea[yIndex][xIndex] != 0) {
val rectX = colWidth * xIndex
val rectY = colHeight * yIndex
matrixCanvas.drawRect(
rectX,
colHeight * yIndex,
rectX + colWidth,
rectY + colHeight,
paint
)
invalidate()
}
}
if (xIndex > 0 && xIndex < widthBasis - 1) {
checkCrossRectRegion(x, y, paint)
}
if (isPass() && isPassCross()) {
touchPassed = true
onFinish()
return false
}
}
return true
}
private fun checkCrossRectRegion(x: Float, y: Float, paint: Paint) {
val crossIndex = ((x - colWidth) / widthCross).toInt()
val crossX = (widthCross * (crossIndex + 2))
val crossY = (heightCross * (crossIndex + 2))
if (y > crossY && y < crossY + colHeight) {
if (drawCross[crossIndex] == 0) {
matrixCanvas.drawRect(
crossX,
crossY,
crossX + widthCross,
crossY + colHeight,
paint
)
invalidate()
drawCross[crossIndex] = 1
}
}
val crossY2 = screenHeight - colHeight - crossY
if (y > crossY2 && y < crossY2 + colHeight) {
val index = 2 * widthBasisCross - 1 - crossIndex
if (drawCross[index] == 0) {
matrixCanvas.drawRect(
crossX,
crossY2,
(crossX + colWidth / 2.0f),
(crossY2 + colHeight),
paint
)
invalidate()
drawCross[index] = 1
}
}
}
private fun drawMove(event: MotionEvent) {
if (isTouchDown) {
preTouchedX = touchedX
preTouchedY = touchedY
touchedX = event.x
touchedY = event.y
matrixCanvas.drawLine(preTouchedX, preTouchedY, touchedX, touchedY, linePaint)
invalidate()
isTouchDown = drawRect(touchedX, touchedY, clickPaint)
}
}
private fun drawUp(paramMotionEvent: MotionEvent) {
if (isTouchDown) {
preTouchedX = touchedX
preTouchedY = touchedY
touchedX = paramMotionEvent.x
touchedY = paramMotionEvent.y
if (preTouchedX == touchedX && preTouchedY == touchedY) {
matrixCanvas.drawPoint(touchedX, touchedY, linePaint)
invalidate()
}
isTouchDown = false
}
}
}
}