Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
//License from project: Open Source License 

import android.graphics.Bitmap;
import android.graphics.Canvas;

import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;

public class Main {
    /**
     * Convert a {@link Drawable} into an {@link Bitmap} object.
     * <p>
     * Draws the {@code Drawable} onto a RAM-only {@link Canvas} and grabs the resulting
     * {@code Bitmap}.
     * </p>
     * <p>
     * If the {@code Drawable} is a {@link BitmapDrawable}, no conversion is needed, and no
     * conversion will be done.
     * </p>
     *
     * @param drawable The {@link Drawable} to convert. Can be any drawable.
     * @return A {@link Bitmap} representing the given {@code drawable}.
     */
    public static Bitmap drawableToBitmap(Drawable drawable) {
        Bitmap bitmap;

        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);
            // Single color bitmap will be created of 1x1 pixel
        } 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;
    }
}