Created
November 13, 2020 13:41
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| package com.ribsky.vmistlauncher; | |
| import android.content.Context; | |
| import android.graphics.Bitmap; | |
| import android.graphics.Canvas; | |
| import android.graphics.Color; | |
| import android.graphics.drawable.BitmapDrawable; | |
| import android.graphics.drawable.Drawable; | |
| import androidx.palette.graphics.Palette; | |
| public class WallpaperEngine{ | |
| Context context; | |
| public WallpaperEngine(Context context){ | |
| this.context = context; | |
| } | |
| public static Bitmap drawableToBitmap (Drawable drawable) { | |
| Bitmap bitmap = null; | |
| if (drawable instanceof BitmapDrawable) { | |
| BitmapDrawable bitmapDrawable = (BitmapDrawable) drawable; | |
| if(bitmapDrawable.getBitmap() != null) { | |
| return bitmapDrawable.getBitmap(); | |
| } | |
| } | |
| if(drawable.getIntrinsicWidth() <= 0 || drawable.getIntrinsicHeight() <= 0) { | |
| bitmap = Bitmap.createBitmap(1, 1, Bitmap.Config.ARGB_8888); | |
| } else { | |
| bitmap = Bitmap.createBitmap(drawable.getIntrinsicWidth(), drawable.getIntrinsicHeight(), Bitmap.Config.ARGB_8888); | |
| } | |
| Canvas canvas = new Canvas(bitmap); | |
| drawable.setBounds(0, 0, canvas.getWidth(), canvas.getHeight()); | |
| drawable.draw(canvas); | |
| return bitmap; | |
| } | |
| public boolean isColorDark(int color){ | |
| double darkness = 1-(0.299* Color.red(color) + 0.587*Color.green(color) + 0.114*Color.blue(color))/255; | |
| if(darkness>0.5){ | |
| return false; | |
| }else{ | |
| return true; | |
| } | |
| } | |
| public boolean isWallpaperDark(Bitmap bitmap){ | |
| final int[] dcolor = new int[1]; | |
| Palette.from(bitmap).generate(new Palette.PaletteAsyncListener() { | |
| public void onGenerated(Palette p) { | |
| dcolor[0] = p.getDominantColor(context.getResources().getColor(R.color.black)); | |
| } | |
| }); | |
| return isColorDark(dcolor[0]); | |
| } | |
| } |
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