android调用系统相机拍照并裁剪

public class WelcomActivity extends Activity {

/** Called when the activity is first created. */

private Button btnTake = null;

private ImageView lblImage = null;

private static final int PHOTO_PICKED_WITH_DATA = 3021;

private static final int CAMERA_WITH_DATA = 3023;

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

btnTake = (Button) findViewById(R.id.btnTake);

lblImage = (ImageView) findViewById(R.id.lblImage);

btnTake.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View v) {

// TODO Auto-generated method stub

Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);

startActivityForResult(intent, CAMERA_WITH_DATA);

}

});

}

@Override

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

// TODO Auto-generated method stub

if (resultCode != RESULT_OK)

return;

switch (requestCode) {

case CAMERA_WITH_DATA:

final Bitmap photo = data.getParcelableExtra("data");

if (photo != null) {

doCropPhoto(photo);

}

case PHOTO_PICKED_WITH_DATA:

Bitmap photo1 = data.getParcelableExtra("data");

if (photo1 != null) {

lblImage.setImageBitmap(photo1);

}

}

}

protected void doCropPhoto(Bitmap data) {

Intent intent = getCropImageIntent(data);

startActivityForResult(intent, PHOTO_PICKED_WITH_DATA);

}

public static Intent getCropImageIntent(Bitmap data) {

Intent intent = new Intent("com.android.camera.action.CROP");

intent.setType("image/*");

intent.putExtra("data", data);

intent.putExtra("crop", "true");

intent.putExtra("aspectX", 1);

intent.putExtra("aspectY", 1);

intent.putExtra("outputX", 128);

intent.putExtra("outputY", 128);

intent.putExtra("return-data", true);

return intent;

}

}