Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.Calendar;

import android.app.Activity;

import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.Bitmap.CompressFormat;
import android.net.Uri;
import android.os.Environment;

import android.view.View;
import android.view.View.MeasureSpec;
import android.widget.Toast;

public class Main {
    public static Bitmap takeScreenshot(Activity activity, int ResourceID) {
        View view = activity.getWindow().getDecorView().findViewById(ResourceID);
        return takeScreenshot(activity, view);
    }

    public static Bitmap takeScreenshot(Activity activity, View view) {
        view.measure(MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED),
                MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED));
        view.layout(0, 0, view.getMeasuredWidth(), view.getMeasuredHeight());
        view.setDrawingCacheEnabled(true);
        final Bitmap bitmap = Bitmap.createBitmap(view.getDrawingCache());
        view.setDrawingCacheEnabled(false);

        return saveBitmapToFile(activity, bitmap);
    }

    public static Bitmap saveBitmapToFile(Activity activity, Bitmap bitmap) {
        String mPath = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES).toString();
        File imageFile = new File(mPath);
        boolean create = imageFile.mkdirs();
        boolean canWrite = imageFile.canWrite();
        Calendar cal = Calendar.getInstance();
        String date = cal.get(Calendar.YEAR) + "-" + cal.get(Calendar.MONTH) + "-" + cal.get(Calendar.DATE);

        String filename = null;
        int i = 0;
        while (imageFile.exists()) {
            i++;
            filename = date + "_mandelbrot" + i + ".png";
            imageFile = new File(mPath, filename);
            boolean canWrite2 = imageFile.canWrite();

        }

        try {
            ByteArrayOutputStream bos = new ByteArrayOutputStream();
            /*resultB*/bitmap.compress(CompressFormat.PNG, 90, bos);
            byte[] bitmapdata = bos.toByteArray();

            //write the bytes in file
            FileOutputStream fos = new FileOutputStream(imageFile);
            fos.write(bitmapdata);
            fos.flush();
            fos.close();

            Intent intent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE);
            intent.setData(Uri.fromFile(imageFile));
            activity.sendBroadcast(intent);

            displaySuccesToast(activity);
        } catch (FileNotFoundException e) {
            displayFileError(activity);
            e.printStackTrace();
        } catch (IOException e) {
            displayFileError(activity);
            e.printStackTrace();
        }
        return bitmap;
    }

    public static void displaySuccesToast(Activity activity) {
        Toast.makeText(activity, "Image saved to SD card", Toast.LENGTH_SHORT).show();
    }

    public static void displayFileError(Activity activity) {
        Toast.makeText(activity, "Can't write image to SD card", Toast.LENGTH_LONG).show();
    }
}