CaptureImageWithIntentActivity2.java

package com.google.mcommerce.sample.android.chapter10;

import java.io.File;

import android.app.Activity;
import android.content.Intent;
import android.content.pm.ActivityInfo;
import android.media.MediaScannerConnection;
import android.media.MediaScannerConnection.MediaScannerConnectionClient;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.provider.MediaStore;
import android.util.Log;
import android.view.View;
import android.widget.Toast;

import com.google.mcommerce.sample.android.R;

public class CaptureImageWithIntentActivity2 extends Activity implements
		MediaScannerConnectionClient {

	private static final String TAG = "CameraWithIntent";
	private File myImageFile = null;
	private Uri myPicture = null;
	private MediaScannerConnection conn = null;

	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.c10_capture_image_with_intent_layout);

		setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
	}

	public void captureImage(View view) {
		myImageFile = new File(Environment.getExternalStorageDirectory()
				+ "/imageCaptureIntent.jpg");
		myImageFile.delete();
		myPicture = Uri.fromFile(myImageFile);
		Intent i = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
		i.putExtra(MediaStore.EXTRA_OUTPUT, myPicture);

		startActivityForResult(i, 0);
	}

	@Override
	protected void onActivityResult(int requestCode, int resultCode, Intent data) {
		if (requestCode == 0 && resultCode == Activity.RESULT_OK) {
			// Get the MediaScanner to catalog our new image file
			startScan();
		}
	}

	private void startScan() {
		if (conn != null) {
			conn.disconnect();
		}

		if (myImageFile.isFile()) {
			conn = new MediaScannerConnection(this, this);
			conn.connect();
		} else {
			Toast.makeText(this, "Image file does not exist?!?!",
					Toast.LENGTH_SHORT).show();
		}
	}

	@Override
	public void onMediaScannerConnected() {
		conn.scanFile(myImageFile.getPath(), null);
	}

	@Override
	public void onScanCompleted(String path, Uri uri) {
		try {
			if (uri != null) {
				Intent intent = new Intent(Intent.ACTION_VIEW);
				intent.setData(uri);
				startActivity(intent);
			} else {
				Log.e(TAG, "That file is no good");
			}
		} finally {
			conn.disconnect();
			conn = null;
		}
	}
}