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前言：上一篇文章主要介绍HarmonyOs开发之———容器组件使用 http://t.csdnimg.cn/r9Qd1
一、使用 AndroidView
//images 是一个 uri数组var androidView by remember { mutableStateOf<View?>(null) }AndroidView(factory = {FrameLayout(it).apply {layoutParams = ViewGroup.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT,ViewGroup.LayoutParams.WRAP_CONTENT)val composeVIew = ComposeView(context)post {composeVIew.setContent {LazyColumn(modifier = Modifier.padding(top = 10.dp, bottom = 10.dp).width(179.dp).height(parentHeight.dp),horizontalAlignment = Alignment.CenterHorizontally,verticalArrangement = Arrangement.Center) {items(images) { image ->val painter: Painter =rememberAsyncImagePainter(image)Box(modifier = Modifier.padding(top = 5.dp, bottom = 5.dp).size(147.dp, 147.dp).clip(RoundedCornerShape(10.dp)).background(color = Color.Transparent)) {if (selectFilter != null) {loadBitmapFromUri(context,image)?.let { it1 ->Image(bitmap = it1.asImageBitmap() ,contentDescription = null,modifier = Modifier.fillMaxSize(),contentScale = ContentScale.Crop,colorFilter = ColorFilter.colorMatrix(ColorMatrix(selectFilter!!)))}} else {loadBitmapFromUri(context,image)?.let { it1 ->Image(bitmap = it1.asImageBitmap(),contentDescription = null,modifier = Modifier.fillMaxSize(),contentScale = ContentScale.Crop)}}}}}}}this.addView(composeVIew, layoutParams)androidView = this}})二、将 AndroidView保存成 bitmap：val bitmap = androidView?.let { saveAndroidViewToBitmapTwo(it) }
fun saveAndroidViewToBitmapTwo(view: View): Bitmap {view.measure(View.MeasureSpec.makeMeasureSpec(view.width, View.MeasureSpec.EXACTLY),View.MeasureSpec.makeMeasureSpec(view.height, View.MeasureSpec.EXACTLY))view.layout(0, 0, view.measuredWidth, view.measuredHeight)val bitmap =Bitmap.createBitmap(view.measuredWidth, view.measuredHeight, Bitmap.Config.ARGB_8888)val canvas = android.graphics.Canvas(bitmap)view.draw(canvas)return bitmap
}注意：当 AndroidView 中使用 Image组件是请注意，显示图片要使用 bitmap、或者资源文件，如果使用val painter: Painter = rememberAsyncImagePainter(image) //image是 Uri类型，会报错：java.lang.IllegalArgumentException: Software rendering doesn't support hardware bitmaps
如需了解更多请联系博主，本篇完。
下一篇：HarmonyOs开发之———Video组件的使用、使用HTTP访问网络
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