Activity中加入以下代码(kotlin)
val paint = Paint() val colorMatrix = ColorMatrix() colorMatrix.setSaturation(0f) paint.colorFilter = ColorMatrixColorFilter(colorMatrix) window.decorView.setLayerType(View.LAYER_TYPE_HARDWARE, paint)
Activity中加入以下代码(kotlin)
val paint = Paint() val colorMatrix = ColorMatrix() colorMatrix.setSaturation(0f) paint.colorFilter = ColorMatrixColorFilter(colorMatrix) window.decorView.setLayerType(View.LAYER_TYPE_HARDWARE, paint)
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