android相机和相册

package com.example.album_camera;

import java.io.ByteArrayOutputStream;
import java.io.FileNotFoundException;

import android.R.id;
import android.app.Activity;
import android.content.ContentResolver;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.Toast;

public class MainActivity extends Activity implements OnClickListener {

private final static int REQUEST_CAMERA = 1;
private final static int REQUEST_ALBUM = 0;
private Button button_album , button_camera ;
private ImageView ivImageView;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
button_album = (Button) findViewById(R.id.button_album );
button_camera = (Button) findViewById(R.id.button_album );
ivImageView = (ImageView) findViewById(R.id.imageView1);
button_album .setOnClickListener(this);
button_camera .setOnClickListener(this);

}

@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.button_album:

Intent intent = new Intent(Intent.ACTION_PICK);
intent.setType("image/*");
startActivityForResult(intent, REQUEST_ALBUM);

break;

case R.id.button_camera :
Intent getImageByCameraIntent = new Intent(
"android.media.action.IMAGE_CAPTURE");
startActivityForResult(getImageByCameraIntent, REQUEST_CAMERA);
break;

default:
break;
}

}

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
switch (requestCode) {
case REQUEST_CAMERA:
Bitmap myBitmap = null;
try {
super.onActivityResult(requestCode, resultCode, data);
Bundle extras = data.getExtras();
myBitmap = (Bitmap) extras.get("data");
ByteArrayOutputStream baos = new ByteArrayOutputStream();
myBitmap.compress(Bitmap.CompressFormat.JPEG, 100, baos);
} catch (Exception e) {
e.printStackTrace();
}
ivImageView.setImageBitmap(myBitmap);
break;
case REQUEST_ALBUM:
Toast.makeText(this, "album", Toast.LENGTH_LONG).show();
Uri uri = data.getData();
Log.e("uri", uri.toString());
ContentResolver cResolver = this.getContentResolver();
try {
Bitmap bitmap = BitmapFactory.decodeStream(cResolver.openInputStream(uri));
ivImageView.setImageBitmap(bitmap);
} catch (FileNotFoundException e) {
e.printStackTrace();
}
break;

default:
break;
}
}

}