Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import java.net.URLConnection;

public class Main {
    public static Bitmap tryToGetBitmapFromInternet(String bitmapUrl, Context context, int imageSize) {
        if (null != bitmapUrl) {
            InputStream inputStream = null;
            try {
                URL url = new URL(bitmapUrl);

                URLConnection connection = url.openConnection();

                connection.connect();

                inputStream = connection.getInputStream();
                ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
                byte[] buffer = new byte[1024];
                int read;

                while ((read = inputStream.read(buffer)) != -1) {
                    byteArrayOutputStream.write(buffer, 0, read);
                }
                inputStream.close();
                byteArrayOutputStream.close();

                buffer = byteArrayOutputStream.toByteArray();

                BitmapFactory.Options options = new BitmapFactory.Options();
                options.inJustDecodeBounds = true;

                BitmapFactory.decodeByteArray(buffer, 0, buffer.length, options);

                int maxSize = Math.max(options.outWidth, options.outHeight);
                float newImageScale = 1f;
                if (-1 != imageSize) {
                    newImageScale = maxSize / (imageSize * context.getResources().getDisplayMetrics().density);
                }

                options.inJustDecodeBounds = false;
                options.inSampleSize = Math.round(newImageScale);

                return BitmapFactory.decodeByteArray(buffer, 0, buffer.length, options);
            } catch (Throwable e) {
                // pass
            } finally {
                if (null != inputStream) {
                    try {
                        inputStream.close();
                    } catch (IOException e) {
                        // pass
                    }
                    inputStream = null;
                }
                System.gc();
            }
        }

        return null;
    }
}