source: other-projects/tipple-android/src/org/tipple/mapDisplay/TakePicture.java@ 26523

package org.tipple.mapDisplay;

import java.io.File;
import java.io.FileOutputStream;
import java.io.ObjectOutputStream;

import android.app.Activity;
import android.content.ContentResolver;
import android.content.Context;
import android.content.Intent;
import android.graphics.Bitmap;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.provider.MediaStore;
import android.util.Log;

public class TakePicture extends Activity {
    protected Uri imageUri;
    String filename = "imageExample.jpg";
    File photo;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        // retrieve value from picture taking
        Bundle extras = getIntent().getExtras();
        if (extras != null) {
            filename = extras.getString("filename");
        }
        startCameraActivity(filename);

    }

    protected void startCameraActivity(String filename) {

        Intent intent = new Intent("android.media.action.IMAGE_CAPTURE");
        photo = new File(Environment.getExternalStorageDirectory(), filename);
        intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(photo));
        imageUri = Uri.fromFile(photo);
        startActivityForResult(intent, 0);

    }

    public void onActivityResult(int requestCode, int resultCode, Intent data) {

        super.onActivityResult(requestCode, resultCode, data);
        Log.i("TakePicture", "resultCode: " + resultCode);
        switch (resultCode) {
        case 0:
            Log.i("TakePicture", "User cancelled");
            break;

        case -1:
            onPhotoTaken();
            break;
        }
        this.finish(); // when user click on V then back to previous activity

    }

    private void onPhotoTaken() {
        Uri selectedImage = imageUri;
        getContentResolver().notifyChange(selectedImage, null);
        ContentResolver cr = getContentResolver();

        try {
            Bitmap bitmap = android.provider.MediaStore.Images.Media.getBitmap(
                    cr, selectedImage);
            Log.i("TakePicture", "save file to the location" + filename);
            savePicture(tippleActivity.imageDirectory + filename, bitmap,
                    getApplicationContext());
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    private void savePicture(String filename, Bitmap b, Context ctx) {
        if (!photo.exists()) {// look for sdcard directory
            try {
                ObjectOutputStream oos;
                FileOutputStream out = new FileOutputStream(filename);
                out = ctx.openFileOutput(filename, Context.MODE_PRIVATE);
                oos = new ObjectOutputStream(out);
                b.compress(Bitmap.CompressFormat.PNG, 100, oos);
                oos.close();
                oos.notifyAll();
                out.notifyAll();
                out.close();
            } catch (Exception e) {
                e.printStackTrace();
            }
        } else {
            Log.i("TakePicture", "file exist" + filename);
            return;
        }
    }

}