Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/**
 * Copyright 2016 bingoogolapple
 * <p/>
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * <p/>
 * http://www.apache.org/licenses/LICENSE-2.0
 * <p/>
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Matrix;
import android.graphics.Paint;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;

public class Main {
    public static Drawable rotateBitmap(Bitmap inputBitmap) {
        Matrix matrix = new Matrix();
        matrix.setRotate(90, (float) inputBitmap.getWidth() / 2, (float) inputBitmap.getHeight() / 2);

        float outputX = inputBitmap.getHeight();
        float outputY = 0;

        final float[] values = new float[9];
        matrix.getValues(values);
        float x1 = values[Matrix.MTRANS_X];
        float y1 = values[Matrix.MTRANS_Y];
        matrix.postTranslate(outputX - x1, outputY - y1);
        Bitmap outputBitmap = Bitmap.createBitmap(inputBitmap.getHeight(), inputBitmap.getWidth(),
                Bitmap.Config.ARGB_8888);
        Paint paint = new Paint();
        Canvas canvas = new Canvas(outputBitmap);
        canvas.drawBitmap(inputBitmap, matrix, paint);
        return new BitmapDrawable(null, outputBitmap);
    }
}