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add graphicsLayer sample to apply colorFilter and BlendMode

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Tutorial1-1Basics/src/main/java/com/smarttoolfactory/tutorial1_1basics/chapter6_graphics
- Tutorial6_39_1GraphicsLayer1.kt

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`‎Tutorial1-1Basics/src/main/java/com/smarttoolfactory/tutorial1_1basics/chapter6_graphics/Tutorial6_39_1GraphicsLayer1.kt`

Lines changed: 76 additions & 0 deletions

Original file line number	Diff line number	Diff line change
`@@ -11,6 +11,7 @@ import androidx.compose.foundation.clickable`
`11`	`11`	`import androidx.compose.foundation.gestures.detectTapGestures`
`12`	`12`	`import androidx.compose.foundation.layout.Arrangement`
`13`	`13`	`import androidx.compose.foundation.layout.Column`
	`14`	`+import androidx.compose.foundation.layout.Row`
`14`	`15`	`import androidx.compose.foundation.layout.aspectRatio`
`15`	`16`	`import androidx.compose.foundation.layout.fillMaxSize`
`16`	`17`	`import androidx.compose.foundation.layout.fillMaxWidth`
`@@ -31,17 +32,22 @@ import androidx.compose.runtime.remember`
`31`	`32`	`import androidx.compose.runtime.rememberCoroutineScope`
`32`	`33`	`import androidx.compose.runtime.setValue`
`33`	`34`	`import androidx.compose.ui.Modifier`
	`35`	`+import androidx.compose.ui.draw.drawWithCache`
`34`	`36`	`import androidx.compose.ui.draw.drawWithContent`
`35`	`37`	`import androidx.compose.ui.draw.shadow`
`36`	`38`	`import androidx.compose.ui.geometry.Offset`
`37`	`39`	`import androidx.compose.ui.geometry.Rect`
`38`	`40`	`import androidx.compose.ui.geometry.Size`
	`41`	`+import androidx.compose.ui.graphics.BlendMode`
`39`	`42`	`import androidx.compose.ui.graphics.Color`
	`43`	`+import androidx.compose.ui.graphics.ColorFilter`
	`44`	`+import androidx.compose.ui.graphics.ColorMatrix`
`40`	`45`	`import androidx.compose.ui.graphics.ImageBitmap`
`41`	`46`	`import androidx.compose.ui.graphics.PathEffect`
`42`	`47`	`import androidx.compose.ui.graphics.asAndroidBitmap`
`43`	`48`	`import androidx.compose.ui.graphics.asImageBitmap`
`44`	`49`	`import androidx.compose.ui.graphics.drawscope.Stroke`
	`50`	`+import androidx.compose.ui.graphics.layer.drawLayer`
`45`	`51`	`import androidx.compose.ui.graphics.rememberGraphicsLayer`
`46`	`52`	`import androidx.compose.ui.input.pointer.pointerInput`
`47`	`53`	`import androidx.compose.ui.platform.LocalDensity`
`@@ -444,3 +450,73 @@ fun createParticles(imageBitmap: ImageBitmap, particleSize: Int): List<TestParti`
`444`	`450`
`445`	`451`	`return particleList`
`446`	`452`	`}`
	`453`	`+`
	`454`	`+@Preview`
	`455`	`+@Composable`
	`456`	`+fun InversePixelsSample() {`
	`457`	`+ Column(modifier = Modifier.fillMaxSize().padding(16.dp)) {`
	`458`	`+`
	`459`	`+ androidx.compose.material3.Text(`
	`460`	`+ text = "Original Colors",`
	`461`	`+ fontSize = 34.sp,`
	`462`	`+ modifier = Modifier.padding(vertical = 16.dp)`
	`463`	`+ )`
	`464`	`+`
	`465`	`+ Row {`
	`466`	`+ Image(`
	`467`	`+ modifier = Modifier.weight(1f).aspectRatio(1f),`
	`468`	`+ painter = painterResource(R.drawable.avatar_1_raster),`
	`469`	`+ contentDescription = null`
	`470`	`+ )`
	`471`	`+ Image(`
	`472`	`+ modifier = Modifier.weight(1f).aspectRatio(1f),`
	`473`	`+ painter = painterResource(R.drawable.avatar_2_raster),`
	`474`	`+ contentDescription = null`
	`475`	`+ )`
	`476`	`+ }`
	`477`	`+`
	`478`	`+ androidx.compose.material3.Text(`
	`479`	`+ text = "Inverted Colors",`
	`480`	`+ fontSize = 34.sp,`
	`481`	`+ modifier = Modifier.padding(vertical = 16.dp)`
	`482`	`+ )`
	`483`	`+`
	`484`	`+ Row(`
	`485`	`+ modifier = Modifier`
	`486`	`+ .drawWithCache {`
	`487`	`+ val graphicsLayer = obtainGraphicsLayer()`
	`488`	`+`
	`489`	`+ val values = floatArrayOf(`
	`490`	`+ -1f, 0f, 0f, 0f, 255f,`
	`491`	`+ 0f, -1f, 0f, 0f, 255f,`
	`492`	`+ 0f, 0f, -1f, 0f, 255f,`
	`493`	`+ 0f, 0f, 0f, 1f, 0f`
	`494`	`+ )`
	`495`	`+`
	`496`	`+ graphicsLayer.apply {`
	`497`	`+ record {`
	`498`	`+ drawContent()`
	`499`	`+ }`
	`500`	`+ blendMode = BlendMode.Difference`
	`501`	`+ colorFilter = ColorFilter.colorMatrix(ColorMatrix(values))`
	`502`	`+ }`
	`503`	`+`
	`504`	`+ onDrawWithContent {`
	`505`	`+ drawLayer(graphicsLayer)`
	`506`	`+ }`
	`507`	`+ }`
	`508`	`+ ) {`
	`509`	`+ Image(`
	`510`	`+ modifier = Modifier.weight(1f).aspectRatio(1f),`
	`511`	`+ painter = painterResource(R.drawable.avatar_1_raster),`
	`512`	`+ contentDescription = null`
	`513`	`+ )`
	`514`	`+ Image(`
	`515`	`+ modifier = Modifier.weight(1f).aspectRatio(1f),`
	`516`	`+ painter = painterResource(R.drawable.avatar_2_raster),`
	`517`	`+ contentDescription = null`
	`518`	`+ )`
	`519`	`+ }`
	`520`	`+`
	`521`	`+ }`
	`522`	`+}`

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Commit f20daa9

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`‎Tutorial1-1Basics/src/main/java/com/smarttoolfactory/tutorial1_1basics/chapter6_graphics/Tutorial6_39_1GraphicsLayer1.kt`

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