Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
//  use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of

import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.PorterDuff;
import android.graphics.PorterDuffXfermode;
import android.graphics.Rect;
import android.graphics.RectF;

public class Main {
    private static Context sApplicationContext;

    /**
     * Creates a bitmap with rounded corners
     *
     * @param bitmap    source bitmap
     * @param maxHeight maximal height for result bitmap
     * @param pixels    corner radius
     * @return a new bitmap if succeed, nil instead
     */
    public static Bitmap getRoundedCornerBitmap(Bitmap bitmap, int maxHeight, int pixels) {
        if (bitmap == null || sApplicationContext == null) {
            return bitmap;
        }
        maxHeight = (int) (sApplicationContext.getResources().getDisplayMetrics().density * maxHeight);
        float scale = bitmap.getHeight() * 1.0f / maxHeight;
        int newWidth = (int) (bitmap.getWidth() / scale);

        Bitmap output = Bitmap.createBitmap(newWidth, maxHeight, Bitmap.Config.ARGB_8888);
        Canvas canvas = new Canvas(output);

        final int color = 0xffffffff;
        final Paint paint = new Paint();
        final Rect rect = new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight());
        final Rect dstRect = new Rect(0, 0, newWidth, maxHeight);
        final RectF rectF = new RectF(dstRect);

        paint.setAntiAlias(true);
        canvas.drawARGB(0, 0, 0, 0);
        paint.setColor(color);
        canvas.drawRoundRect(rectF, (float) pixels, (float) pixels, paint);

        paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
        canvas.drawBitmap(bitmap, rect, dstRect, paint);

        return output;
    }
}