scale With width and height - Android Graphics

Android examples for Graphics:Bitmap Scale

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Description

scale With width and height

Demo Code

/*/*from   w ww. j  a va2s . co m*/
 * Copyright (c) 2014,KJFrameForAndroid Open Source Project,.
 *
 * 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
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * 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.
 */
//package com.java2s;
import android.graphics.Bitmap;

import android.graphics.Matrix;

public class Main {

    public static Bitmap scaleWithWH(Bitmap src, double w, double h) {
        if (w == 0 || h == 0 || src == null) {
            return src;
        } else {
            //  
            int width = src.getWidth();
            int height = src.getHeight();
            // 
            Matrix matrix = new Matrix();
            // 
            float scaleWidth = (float) (w / width);
            float scaleHeight = (float) (h / height);
            //   
            matrix.postScale(scaleWidth, scaleHeight);
            // 
            return Bitmap.createBitmap(src, 0, 0, width, height, matrix,
                    true);
        }
    }
}

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