How to take a photo, save it and get the photo in Android

Question

I\'ve been searching the simple example to take a photo, and save it using URI and retrieve the photo for image processing , I\'ve tried lot of example code, but none of them w

Answer 1

please use the following code.

package com.example.stackoverflow;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.math.BigInteger;
import java.security.SecureRandom;

import android.app.Activity;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.provider.MediaStore;
import android.view.View;
import android.widget.Button;
import android.widget.GridView;
import android.widget.ImageView;

public class MyCameraActivity extends Activity {
    private static final int CAMERA_REQUEST = 1888; 



    static String str_Camera_Photo_ImagePath = "";
    private static File f;
    private static int Take_Photo = 2;
    private static String str_randomnumber = "";
    static String str_Camera_Photo_ImageName = "";
    public static String str_SaveFolderName;
    private static File wallpaperDirectory;
    Bitmap bitmap;
    int storeposition = 0;
    public static GridView gridview;
    public static ImageView imageView;



    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.ccccc);
        this.imageView = (ImageView)this.findViewById(R.id.imageView1);
        Button photoButton = (Button) this.findViewById(R.id.button1);
        photoButton.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View v) {
                str_SaveFolderName = Environment
                        .getExternalStorageDirectory()
                        .getAbsolutePath()
                        + "/rajeshsample";
                str_randomnumber = String.valueOf(nextSessionId());
                wallpaperDirectory = new File(str_SaveFolderName);
                if (!wallpaperDirectory.exists())
                    wallpaperDirectory.mkdirs();
                str_Camera_Photo_ImageName = str_randomnumber
                        + ".jpg";
                str_Camera_Photo_ImagePath = str_SaveFolderName
                        + "/" + str_randomnumber + ".jpg";
                System.err.println(" str_Camera_Photo_ImagePath  "
                        + str_Camera_Photo_ImagePath);
                f = new File(str_Camera_Photo_ImagePath);
                startActivityForResult(new Intent(
                        MediaStore.ACTION_IMAGE_CAPTURE).putExtra(
                        MediaStore.EXTRA_OUTPUT, Uri.fromFile(f)),
                        Take_Photo);
                System.err.println("f  " + f);
            }
        });
    }


    // used to create randon numbers
    public String nextSessionId() {
        SecureRandom random = new SecureRandom();
        return new BigInteger(130, random).toString(32);
    }


    protected void onActivityResult(int requestCode, int resultCode, Intent data) {  
        if (requestCode == Take_Photo) {
            String filePath = null;

            filePath = str_Camera_Photo_ImagePath;
            if (filePath != null) {
                Bitmap faceView = ( new_decode(new File(
                                filePath))); // ========================> good
                                                // lines



                imageView.setImageBitmap(faceView);

            } else {
                bitmap = null;
            }
        }
    } 

    public static Bitmap new_decode(File f) {

        // decode image size

        BitmapFactory.Options o = new BitmapFactory.Options();
        o.inJustDecodeBounds = true;
        o.inDither = false; // Disable Dithering mode

        o.inPurgeable = true; // Tell to gc that whether it needs free memory,
                                // the Bitmap can be cleared

        o.inInputShareable = true; // Which kind of reference will be used to
                                    // recover the Bitmap data after being
                                    // clear, when it will be used in the future
        try {
            BitmapFactory.decodeStream(new FileInputStream(f), null, o);
        } catch (FileNotFoundException e1) {
            // TODO Auto-generated catch block
            e1.printStackTrace();
        }

        // Find the correct scale value. It should be the power of 2.
        final int REQUIRED_SIZE = 300;
        int width_tmp = o.outWidth, height_tmp = o.outHeight;
        int scale = 1;
        while (true) {
            if (width_tmp / 1.5 < REQUIRED_SIZE && height_tmp / 1.5 < REQUIRED_SIZE)
                break;
            width_tmp /= 1.5;
            height_tmp /= 1.5;
            scale *= 1.5;
        }

        // decode with inSampleSize
        BitmapFactory.Options o2 = new BitmapFactory.Options();
        // o2.inSampleSize=scale;
        o.inDither = false; // Disable Dithering mode

        o.inPurgeable = true; // Tell to gc that whether it needs free memory,
                                // the Bitmap can be cleared

        o.inInputShareable = true; // Which kind of reference will be used to
                                    // recover the Bitmap data after being
                                    // clear, when it will be used in the future
        // return BitmapFactory.decodeStream(new FileInputStream(f), null, o2);
        try {

//          return BitmapFactory.decodeStream(new FileInputStream(f), null,
//                  null);
            Bitmap bitmap= BitmapFactory.decodeStream(new FileInputStream(f), null, null);
            System.out.println(" IW " + width_tmp);
            System.out.println("IHH " + height_tmp);           
               int iW = width_tmp;
                int iH = height_tmp;

               return Bitmap.createScaledBitmap(bitmap, iW, iH, true);

        } catch (OutOfMemoryError e) {
            // TODO: handle exception
            e.printStackTrace();
            // clearCache();

            // System.out.println("bitmap creating success");
            System.gc();
            return null;
            // System.runFinalization();
            // Runtime.getRuntime().gc();
            // System.gc();
            // decodeFile(f);
        } catch (FileNotFoundException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
            return null;
        }

    }

}

XML :