我刚刚在android中使用了相机应用程序的代码。在此应用程序中，单击的照片将保存到SD卡中。我的代码用于保存，如下所示：$
Camera.PictureCallback jpegCallback = new PictureCallback()
{
public void onPictureTaken(byte[] data, Camera camera)
{
FileOutputStream outStream = null;
try
{
outStream = new FileOutputStream(String.format("/sdcard/%d.jpg", System.currentTimeMillis()));
outStream.write(data);
outStream.close();
sendBroadcast(new Intent(Intent.ACTION_MEDIA_MOUNTED, Uri.parse("file://"+ Environment.getExternalStorageDirectory())));
Log.d(TAG, "on pictureTaken" + data.length);
}
catch (FileNotFoundException e)
{
e.printStackTrace();
}
catch (IOException e)
{
e.printStackTrace();
}
finally
{}
Log.d(TAG, "on pictureTaken-jpeg");
}
};
我只是通过使用FacebookSDK使用另一项活动将该图像从SD卡上传到Facebook，如下图所示。
public class Upload extends Activity implements OnItemClickListener
{
/* Your Facebook Application ID must be set before running this example
* See http://www.facebook.com/developers/createapp.php
*/
public static final String APP_ID = "146770088755283";
private LoginButton mLoginButton;
private TextView mText;
private ImageView mUserPic;
private Handler mHandler;
ProgressDialog dialog;
final int AUTHORIZE_ACTIVITY_RESULT_CODE = 0;
final int PICK_EXISTING_PHOTO_RESULT_CODE = 1;
private ListView list;
String[] main_items = {"Upload Photo"};
String[] permissions = {"offline_access", "publish_stream", "user_photos", "publish_checkins", "photo_upload"};
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
if (APP_ID == null)
{
Util.showAlert(this, "Warning", "Facebook Applicaton ID must be " +
"specified before running this example: see FbAPIs.java");
return;
}
setContentView(R.layout.main);
mHandler = new Handler();
mText = (TextView) Upload.this.findViewById(R.id.txt);
mUserPic = (ImageView)Upload.this.findViewById(R.id.user_pic);
//Create the Facebook Object using the app id.
Utility.mFacebook = new Facebook(APP_ID);
//Instantiate the asynrunner object for asynchronous api calls.
Utility.mAsyncRunner = new AsyncFacebookRunner(Utility.mFacebook);
mLoginButton = (LoginButton) findViewById(R.id.login);
//restore session if one exists
SessionStore.restore(Utility.mFacebook, this);
SessionEvents.addAuthListener(new FbAPIsAuthListener());
SessionEvents.addLogoutListener(new FbAPIsLogoutListener());
/*
* Source Tag: login_tag
*/
mLoginButton.init(this, AUTHORIZE_ACTIVITY_RESULT_CODE, Utility.mFacebook, permissions);
if(Utility.mFacebook.isSessionValid())
{
requestUserData();
}
list = (ListView)findViewById(R.id.main_list);
list.setOnItemClickListener(this);
list.setAdapter(new ArrayAdapter<String>(this, R.layout.main_list_item, main_items));
}
@Override
public void onResume()
{
super.onResume();
if(Utility.mFacebook != null && !Utility.mFacebook.isSessionValid())
{
mText.setText("You are logged out! ");
mUserPic.setImageBitmap(null);
}
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
switch(requestCode)
{
/*
* if this is the activity result from authorization flow, do a call back to authorizeCallback
* Source Tag: login_tag
*/
case AUTHORIZE_ACTIVITY_RESULT_CODE:
{
Utility.mFacebook.authorizeCallback(requestCode, resultCode, data);
break;
}
/*
* if this is the result for a photo picker from the gallery, upload the image after scaling it.
* You can use the Utility.scaleImage() function for scaling
*/
case PICK_EXISTING_PHOTO_RESULT_CODE:
{
if (resultCode == Activity.RESULT_OK)
{
Uri photoUri = data.getData();
if(photoUri != null) {
Bundle params = new Bundle();
try
{
params.putByteArray("photo", Utility.scaleImage(getApplicationContext(), photoUri));
} catch (IOException e)
{
e.printStackTrace();
}
params.putString("caption", "FbAPIs Sample App photo upload");
Utility.mAsyncRunner.request("me/photos", params, "POST", new PhotoUploadListener(), null);
}
else
{
Toast.makeText(getApplicationContext(), "Error selecting image from the gallery.", Toast.LENGTH_SHORT).show();
}
}
else
{
Toast.makeText(getApplicationContext(), "No image selected for upload.", Toast.LENGTH_SHORT).show();
}
break;
}
}
}
public void onItemClick(AdapterView<?> arg0, View v, int position, long arg3)
{
switch(position)
{
/*
* Source Tag: upload_photo
* You can upload a photo from the media gallery or from a remote server
* How to upload photo: https://developers.facebook.com/blog/post/498/
*/
case 0:
{
if(!Utility.mFacebook.isSessionValid())
{
Util.showAlert(this, "Warning", "You must first log in.");
}
else
{
dialog = ProgressDialog.show(Upload.this, "", getString(R.string.please_wait), true, true);
new AlertDialog.Builder(this)
.setTitle(R.string.gallery_title)
.setMessage(R.string.gallery_msg)
.setPositiveButton(R.string.gallery_button, new DialogInterface.OnClickListener()
{
public void onClick(DialogInterface dialog, int which)
{
Intent intent = new Intent(Intent.ACTION_PICK, (MediaStore.Images.Media.EXTERNAL_CONTENT_URI));
startActivityForResult(intent, PICK_EXISTING_PHOTO_RESULT_CODE);
}
})
.setOnCancelListener(new DialogInterface.OnCancelListener() {
public void onCancel(DialogInterface d) {
dialog.dismiss();
}
})
.show();
}
break;
}
}
}
/*
* callback for the feed dialog which updates the profile status
*/
public class UpdateStatusListener extends BaseDialogListener {
public void onComplete(Bundle values) {
final String postId = values.getString("post_id");
if (postId != null) {
new UpdateStatusResultDialog(Upload.this, "Update Status executed", values).show();
} else {
Toast toast = Toast.makeText(getApplicationContext(), "No wall post made", Toast.LENGTH_SHORT);
toast.show();
}
}
public void onFacebookError(FacebookError error) {
Toast.makeText(getApplicationContext(), "Facebook Error: " + error.getMessage(), Toast.LENGTH_SHORT).show();
}
public void onCancel() {
Toast toast = Toast.makeText(getApplicationContext(), "Update status cancelled", Toast.LENGTH_SHORT);
toast.show();
}
}
/*
* callback for the apprequests dialog which sends an app request to user's friends.
*/
public class AppRequestsListener extends BaseDialogListener {
public void onComplete(Bundle values) {
Toast toast = Toast.makeText(getApplicationContext(), "App request sent", Toast.LENGTH_SHORT);
toast.show();
}
public void onFacebookError(FacebookError error) {
Toast.makeText(getApplicationContext(), "Facebook Error: " + error.getMessage(), Toast.LENGTH_SHORT).show();
}
public void onCancel() {
Toast toast = Toast.makeText(getApplicationContext(), "App request cancelled", Toast.LENGTH_SHORT);
toast.show();
}
}
/*
* callback for the photo upload
*/
public class PhotoUploadListener extends BaseRequestListener {
public void onComplete(final String response, final Object state) {
dialog.dismiss();
mHandler.post(new Runnable() {
public void run() {
new UploadPhotoResultDialog(Upload.this, "Upload Photo executed", response).show();
}
});
}
public void onFacebookError(FacebookError error) {
dialog.dismiss();
Toast.makeText(getApplicationContext(), "Facebook Error: " + error.getMessage(), Toast.LENGTH_LONG).show();
}
}
public class FQLRequestListener extends BaseRequestListener {
public void onComplete(final String response, final Object state) {
mHandler.post(new Runnable() {
public void run() {
Toast.makeText(getApplicationContext(), "Response: " + response, Toast.LENGTH_LONG).show();
}
});
}
public void onFacebookError(FacebookError error) {
Toast.makeText(getApplicationContext(), "Facebook Error: " + error.getMessage(), Toast.LENGTH_LONG).show();
}
}
/*
* Callback for fetching current user's name, picture, uid.
*/
public class UserRequestListener extends BaseRequestListener {
public void onComplete(final String response, final Object state) {
JSONObject jsonObject;
try {
jsonObject = new JSONObject(response);
final String picURL = jsonObject.getString("picture");
final String name = jsonObject.getString("name");
Utility.userUID = jsonObject.getString("id");
mHandler.post(new Runnable() {
public void run() {
mText.setText("Welcome " + name + "!");
mUserPic.setImageBitmap(Utility.getBitmap(picURL));
}
});
} catch (JSONException e) {
e.printStackTrace();
}
}
}
/*
* The Callback for notifying the application when authorization
* succeeds or fails.
*/
public class FbAPIsAuthListener implements AuthListener {
public void onAuthSucceed() {
requestUserData();
}
public void onAuthFail(String error) {
mText.setText("Login Failed: " + error);
}
}
/*
* The Callback for notifying the application when log out
* starts and finishes.
*/
public class FbAPIsLogoutListener implements LogoutListener {
public void onLogoutBegin() {
mText.setText("Logging out...");
}
public void onLogoutFinish() {
mText.setText("You have logged out! ");
mUserPic.setImageBitmap(null);
}
}
/*
* Request user name, and picture to show on the main screen.
*/
public void requestUserData() {
mText.setText("Fetching user name, profile pic...");
Bundle params = new Bundle();
params.putString("fields", "name, picture");
Utility.mAsyncRunner.request("me", params, new UserRequestListener());
}
/**
* Definition of the list adapter
*/
public class MainListAdapter extends BaseAdapter {
private LayoutInflater mInflater;
public MainListAdapter() {
mInflater = LayoutInflater.from(Upload.this.getBaseContext());
}
public int getCount() {
return main_items.length;
}
public Object getItem(int position) {
return null;
}
public long getItemId(int position) {
return 0;
}
public View getView(int position, View convertView, ViewGroup parent) {
View hView = convertView;
if(convertView == null) {
hView = mInflater.inflate(R.layout.main_list_item, null);
ViewHolder holder = new ViewHolder();
holder.main_list_item = (TextView) hView.findViewById(R.id.main_api_item);
hView.setTag(holder);
}
ViewHolder holder = (ViewHolder) hView.getTag();
holder.main_list_item.setText(main_items[position]);
return hView;
}
}
class ViewHolder {
TextView main_list_item;
}
}
我想将该照片上传到脸谱而不保存到SD卡以及照片点击的同一活动。如果有人知道，请帮助我....
答案 0 :(得分：0)
在您的情况下，这是不可能的。原因似乎是您使用本机相机捕捉快照。因此，默认情况下，您的快照将保存到默认位置的SD卡中。你无法阻止它。但是，您仍然可以使用从活动结果返回的数据删除图像。