Develop Reference

ContentProviderClient.insert returning null. Where did I go wrong?

I could use some help on this. This is the first time I am using ContentProviderClient. When I am trying to add values and my result is always returning null.
#RequiresApi(api = Build.VERSION_CODES.N)
public void sendHome() throws RemoteException {
Uri myUri = Uri.parse("content://removed this for security of app");
ContentProviderClient cpc = getContentResolver().acquireContentProviderClient(myUri);
cpc.delete(myUri,null,null);
String componentName= ComponentName.unflattenFromString(getPackageName() + "//package.name.here").flattenToShortString();
ContentValues values= new ContentValues();
values.put("componentName", componentName);
//other values here
Uri result = null;
try {
result = cpc.insert(myUri, values);
cpc.close();
} catch (Exception e) {
e.printStackTrace();
}
if (result == null) {
Toast.makeText(this, "Fail to insert.", Toast.LENGTH_SHORT).show();
} else {
Toast.makeText(this, "Insert successfully.", Toast.LENGTH_SHORT).show();
}
}
I then call this in my onCreate.

Android: Intermitent application flow issue

I'm facing with an intermittent application flow issue.
Here, I've got a Login screen where I'm able to login for the first time. But when I'm logging out and/or re-loging in, I'm unable to traverse further. As a work around, I need to uninstall my application and reinstall it and the flow is ok.
Can anyone please guide me on the possible issue.
LoginActivity.java
GetWebServiceManager passwordExpiryWSManager = new GetWebServiceManager();
//to check network connectivity (data connection/Wi-Fi)
ConnectivityManager connectionManager = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo networkInformation = connectionManager.getActiveNetworkInfo();
if (networkInformation != null && networkInformation.isConnected() == true) {
try {
// passwordExpiryString = passwordExpiryWSManager.execute("http://172.25.164.143:8088/api/Login/GetExpiredPassword/?lContactKey=" + username.getText().toString()).get();
passwordExpiryString = passwordExpiryWSManager.execute(AppConstants.URL + "/Login/GetExpiredPassword/?lContactKey=" + username.getText().toString()).get();
jsonObjectPassExpiry = new JSONObject(passwordExpiryString);
jsonArrayPassExpiry = jsonObjectPassExpiry.getJSONArray("LstLoginDetail");
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (ExecutionException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
/*
* Converting JSON string response from Webservice into Java Object
* */
if (jsonArrayPassExpiry != null) {
Gson gson = new Gson();
LoginTO[] loginExpTO = gson.fromJson(jsonArrayPassExpiry.toString(), LoginTO[].class);
loginListPassExpiry = Arrays.asList(loginExpTO);
intent = getIntent();
if (loginListPassExpiry.get(0).getlSuccess() == 1) {
intent.setClass(getApplicationContext(), PortfolioSummaryFragmentActivity.class);
// intent.putExtra("sToken", loginList.get(0).getsToken());
startActivity(intent);
} else {
intent.setClass(getApplicationContext(), PasswordExpiryActivity.class);
// intent.putExtra("sToken", loginList.get(0).getsToken());
startActivity(intent);
}
} else {
Toast.makeText(getApplicationContext(), "Service is not responding. Please try again later!!", Toast.LENGTH_SHORT).show();
}
} else {
Toast.makeText(getApplicationContext(), "Network connection unavailable. Please check your data plan or Wi-Fi connection!!", Toast.LENGTH_SHORT).show();
}
Logout.java
public class LogoutActivity extends Activity {
private TextView successResponse;
private Intent intent;
private Button btnLLogin;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.logout_success);
successResponse = (TextView) findViewById(R.id.txtvwLSuccessMessage);
btnLLogin = (Button) findViewById(R.id.btnLLogin);
intent = getIntent();
successResponse.setText(intent.getStringExtra("successResponse"));
}
public void Login(View v) {
btnLLogin.setTextColor(getResources().getColor(R.color.black));
intent = new Intent(this, LoginActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(intent);
}
#Override
public void onBackPressed() {
finish();
}
}

please use intent = new Intent(LogoutActivity.this, LoginActivity.class); instead of intent = new Intent(this, LoginActivity.class);
beside this use
most important
Add android:launchMode="singleTask " to the activity element in your manifest for Activity LoginActivity

GoogleMap markers weird behaviour

This is a strange one and I hope that someone can at least give me a direction to look in.
My Android application uses GoogleMap API v2. In the app, I run an activity off OnClickInfoWindowListener on one of the markers. In detail, when I click on the particular marker, an InfoWindow of that marker appears. Next when I click on the InfoWindow, it launches another activity.
The problem is that when I return to GoogleMap from that activity, the particular marker which launched the activity, is not responsive. By responsive, I mean when I click on it, I do not get an InfoWindow. There is no such problem with the other markers. To fix the problem, I either move or zoom on the map or click on another marker to show its InfoWindow, then the original marker works normally. I cannot see any red stuff on the LogCat.
I also run the map off a ListView and there is no problem (that I can see).
Any suggestions on what to look at are very welcome!
Edit 1 :
This part is the InfoWindowClickListener setup ...
// Set up info Window Click Listener
googleMap
.setOnInfoWindowClickListener(new OnInfoWindowClickListener() {
#Override
public void onInfoWindowClick(Marker mkr) {
// Default open file
// menu option : edit file information
// menu option : delete
Log.d(TAG, "InfoWindow Click detected.");
final GeoFileData gfd = getFromHashMap(mkr);
if (editGeoFile) {
editGeoFile = false;
editFileInfo(gfd);
} else if (deleteGeoFile) {
deleteGeoFile = false;
deleteFile(gfd, mkr);
} else {
openFile(gfd);
}
}
});
The openFile routine which launches the Activity
// Public and Routines used by the main loop
private void openFile (GeoFileData gfd) {
int typeIndex = gfd.getTypeIndex();
switch(typeIndex) {
case 0 :
case 1 :
case 2 :
case 3 :
// Spen file by default
Intent notePadIntent = new Intent(getBaseContext(), NotePad.class);
Bundle b = new Bundle();
b.putParcelable(MAIN_NOTEPAD_GFD, gfd);
notePadIntent.putExtras(b);
startActivityForResult(notePadIntent, SPEN_NOTEPAD_CODE);
break;
default :
Log.w(TAG, "Unknown file.");
Toast.makeText(this, getString(R.string.toast_unknown_file), Toast.LENGTH_LONG).show();
break;
}
}
The starting part of the launched activity
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_spen_notepad);
Bundle extras = getIntent().getExtras();
if (extras != null) {
inputGfd = extras.getParcelable(PreznsActivity.MAIN_NOTEPAD_GFD);
}
extras.clear();
mContext = this;
// Spen
boolean isSpenFeatureEnabled = false;
Spen spenPackage = new Spen();
try {
spenPackage.initialize(this);
isSpenFeatureEnabled = spenPackage.isFeatureEnabled(Spen.DEVICE_PEN);
} catch (SsdkUnsupportedException e) {
if( SDKUtils.processUnsupportedException(this, e) == true) {
return;
}
} catch (Exception e1) {
Toast.makeText(mContext, "Cannot initialize Spen.",
Toast.LENGTH_SHORT).show();
e1.printStackTrace();
finish();
}
FrameLayout spenViewContainer =
(FrameLayout) findViewById(R.id.spenViewContainer);
RelativeLayout spenViewLayout =
(RelativeLayout) findViewById(R.id.spenViewLayout);
// PenSettingView
mPenSettingView =
new SpenSettingPenLayout(mContext, new String(),
spenViewLayout);
if (mPenSettingView == null) {
Toast.makeText(mContext, "Cannot create new PenSettingView.",
Toast.LENGTH_SHORT).show();
finish();
}
// EraserSettingView
mEraserSettingView =
new SpenSettingEraserLayout(mContext, new String(),
spenViewLayout);
if (mEraserSettingView == null) {
Toast.makeText(mContext, "Cannot create new EraserSettingView.",
Toast.LENGTH_SHORT).show();
finish();
}
// TextSettingView
mTextSettingView = new SpenSettingTextLayout(mContext, new String(), new HashMap<String, String>(), spenViewLayout);
if (mTextSettingView == null) {
Toast.makeText(mContext, "Cannot craeate new TextSettingView.", Toast.LENGTH_SHORT).show();
finish();
}
spenViewContainer.addView(mPenSettingView);
spenViewContainer.addView(mEraserSettingView);
spenViewContainer.addView(mTextSettingView);
// SpenSurfaceView
mSpenSurfaceView = new SpenSurfaceView(mContext);
if (mSpenSurfaceView == null) {
Toast.makeText(mContext, "Cannot create new SpenSurfaceView.",
Toast.LENGTH_SHORT).show();
finish();
}
spenViewLayout.addView(mSpenSurfaceView);
mPenSettingView.setCanvasView(mSpenSurfaceView);
mEraserSettingView.setCanvasView(mSpenSurfaceView);
mTextSettingView.setCanvasView(mSpenSurfaceView);
//
Display display = getWindowManager().getDefaultDisplay();
mScreenRect = new Rect();
display.getRectSize(mScreenRect);
// SpenNoteDoc
try {
mSpenNoteDoc =
new SpenNoteDoc(mContext, mScreenRect.width(), mScreenRect.height());
} catch (IOException e) {
Toast.makeText(mContext, "Cannot create new NoteDoc",
Toast.LENGTH_SHORT).show();
e.printStackTrace();
finish();
} catch (Exception e) {
e.printStackTrace();
finish();
}
// NoteDoc
mSpenPageDoc = mSpenNoteDoc.appendPage();
mSpenPageDoc.setBackgroundColor(0xFFD6E6F5);
mSpenPageDoc.clearHistory();
// PageDoc
mSpenSurfaceView.setPageDoc(mSpenPageDoc, true);
initSettingInfo();
// Listener
mSpenSurfaceView.setTouchListener(mPenTouchListener);
mSpenSurfaceView.setColorPickerListener(mColorPickerListener);
mSpenSurfaceView.setTextChangeListener(mTextChangeListener);
mSpenSurfaceView.setReplayListener(mReplayListener);
mSpenPageDoc.setHistoryListener(mHistoryListener);
mEraserSettingView.setEraserListener(mEraserListener);
mSpenSurfaceView.setFlickListener(mFlickListener);
// Button
mTextObjBtn = (ImageView) findViewById(R.id.textObjBtn);
mTextObjBtn.setOnClickListener(mTextObjBtnClickListener);
mPenBtn = (ImageView) findViewById(R.id.penBtn);
mPenBtn.setOnClickListener(mPenBtnClickListener);
mEraserBtn = (ImageView) findViewById(R.id.eraserBtn);
mEraserBtn.setOnClickListener(mEraserBtnClickListener);
mUndoBtn = (ImageView) findViewById(R.id.undoBtn);
mUndoBtn.setOnClickListener(undoNredoBtnClickListener);
mUndoBtn.setEnabled(mSpenPageDoc.isUndoable());
mRedoBtn = (ImageView) findViewById(R.id.redoBtn);
mRedoBtn.setOnClickListener(undoNredoBtnClickListener);
mRedoBtn.setEnabled(mSpenPageDoc.isRedoable());
mImgObjBtn = (ImageView) findViewById(R.id.imgObjBtn);
mImgObjBtn.setOnClickListener(mImgObjBtnClickListener);
mAddPageBtn = (ImageView) findViewById(R.id.addPageBtn);
mAddPageBtn.setOnClickListener(mAddPageBtnClickListener);
mTxtView = (TextView) findViewById(R.id.spen_page);
mTxtView.setText("Page" + mSpenNoteDoc.getPageIndexById(mSpenPageDoc.getId()));
selectButton(mPenBtn);
String filePath = inputGfd.getFileDirectory();
mFilePath = new File(filePath);
if (!mFilePath.exists()) {
if (!mFilePath.mkdirs()) {
Toast.makeText(mContext, "Save Path Creation Error", Toast.LENGTH_SHORT).show();
return;
}
}
mSpenPageDoc.startRecord();
File loadFile = new File(inputGfd.getFileDirectory(), inputGfd.getFileName());
if (loadFile.exists()) {
loadNoteFile();
} else {
Log.w(TAG, "File does not exist!");
}
if(isSpenFeatureEnabled == false) {
mToolType = SpenSurfaceView.TOOL_FINGER;
mSpenSurfaceView.setToolTypeAction(mToolType,
SpenSurfaceView.ACTION_STROKE);
Toast.makeText(mContext,
"Device does not support Spen. \n You can draw stroke by finger",
Toast.LENGTH_SHORT).show();
}
}
One of the returns for the activity
private boolean saveNoteFile(final boolean isClose) {
// file save
// note file
String saveFilePath = inputGfd.getFileDirectory() + File.separator;
String fileName = inputGfd.getFileName();
if (!fileName.equals("")) {
saveFilePath += fileName;
saveNoteFile(saveFilePath);
if (isClose)
finish();
} else {
Toast
.makeText(mContext, "Invalid filename !!!", Toast.LENGTH_LONG)
.show();
}
return true;
}
and finally the destroy routine,
#Override
protected void onDestroy() {
Log.d(TAG, "NotePad onDestroy()");
super.onDestroy();
if (mSpenNoteDoc != null && mSpenPageDoc.isRecording()) {
mSpenPageDoc.stopRecord();
}
if (mPenSettingView != null) {
mPenSettingView.close();
}
if (mEraserSettingView != null) {
mEraserSettingView.close();
}
if (mTextSettingView != null) {
mTextSettingView.close();
}
if(mSpenSurfaceView != null) {
if (mSpenSurfaceView.getReplayState() == SpenSurfaceView.REPLAY_STATE_PLAYING) {
mSpenSurfaceView.stopReplay();
}
mSpenSurfaceView.closeControl();
mSpenSurfaceView.close();
mSpenSurfaceView = null;
}
if(mSpenNoteDoc != null) {
try {
if (isDiscard)
mSpenNoteDoc.discard();
else
mSpenNoteDoc.close();
} catch (Exception e) {
e.printStackTrace();
}
mSpenNoteDoc = null;
}
};
Thanks!

This is likely a bug in Google Maps Android API v2 itself.
I encounter it in my app. When you open "Declusterification" demo, click on yellow marker with 10 in the center and a new marker (red default) appears in the same spot, this new marker cannot be interacted with to show info window without moving the map.
If you happen to figure out SSCCE for it, I suggest posting it on gmaps-api-issues. I'll support it. If I do find simple example to show this issue, I'll also post an update here.

To close up this question.
GoogleMap markers exhibit the anomalies mentioned in this thread and currently the issue has been fed back to Google. There are two apparent "workarounds" to the problem but how effective they are is not clear:
1st workaround : work within the limitations of .clear(). An activated marker cannot be deactivated with .clear().
2nd workaround : after returning from the activity, perform a camera update. This apparently resets the activation of the marker.

Can't create handler inside thread that has not called Looper.prepare(). RuntimeExcetion while uploading file to DropBox

I m getting exception "Can't create handler inside thread that has not called Looper.prepare()
in the function doFirstTime().
I m trying to upload my data at Dropbox using Dropbox API
Can you tell me how to fix it?
public class DownloadFile extends AsyncTask<Void, Long, Boolean>
`{
private Context mContext;
private DropboxAPI<?> mApi;
private String mPath;
private FileOutputStream mFos;
private String mErrorMsg;
private StringBuilder xmlcode,newXMLCode;
private final static String FILE_NAME = "fuelrecords.xml";
private final static String ZIP_FILE_NAME = "fuelpad.zip";
private String dropbox_xml_records[];
private ArrayList<ArrayList<String>> dropbox_records;
private ArrayList<ArrayList<String>> database_records;
private ExpenseOperations eop;
private UploadFile up;
private boolean no_file;
public DownloadFile(Context context, DropboxAPI<?> api,String dropboxPath)
{
// We set the context this way so we don't accidentally leak activities
mContext = context.getApplicationContext();
mApi = api;
mPath = dropboxPath;
dropbox_records = new ArrayList<ArrayList<String>>();
database_records = new ArrayList<ArrayList<String>>();
eop = new ExpenseOperations(mContext);
xmlcode=new StringBuilder("");
newXMLCode=new StringBuilder("");
no_file = false;
}
#Override
protected Boolean doInBackground(Void... params)
{
Log.d("yes1", " in do in back of download..");
try
{
// Get the metadata for a directory
Entry dirent = mApi.metadata(mPath, 1000, null, true, null);
if (!dirent.isDir || dirent.contents == null)
{
// It's not a directory, or there's nothing in it
mErrorMsg = "Could not locate the file...";
return false;
}
String cachefilePath = mContext.getCacheDir().getAbsolutePath() + "/" + FILE_NAME;
String cachezipPath = mContext.getCacheDir().getAbsolutePath() + "/" + ZIP_FILE_NAME;
try
{
mFos = new FileOutputStream(cachezipPath);
}
catch (FileNotFoundException e)
{
mErrorMsg = "Couldn't create a local file to store the image";
return false;
}
Notification("SmartExpense", "Now syncing to dropbox");
mApi.getFile("/SmartExpenses.zip",null,mFos,null);
try
{
FileInputStream fin = new FileInputStream(cachezipPath);
ZipInputStream zin = new ZipInputStream(fin);
ZipEntry ze = null;
if((ze = zin.getNextEntry()) != null)
{
Log.v("Decompress", "Unzipping " + ze.getName());
if(ze.isDirectory())
{
}
else
{
FileOutputStream fout = new FileOutputStream(cachefilePath);
for (int c = zin.read(); c != -1; c = zin.read())
{
fout.write(c);
}
zin.closeEntry();
fout.close();
}
}
zin.close();
}
catch(Exception ee)
{
Log.d("In unzip:", ""+ee);
}
try
{
FileInputStream fs =new FileInputStream(cachefilePath);
byte buff[] =new byte[1024];
while(fs.read(buff)>0)
{
xmlcode.append(new String(buff));
}
fs.close();
Log.d("Hhhhhhhhhhhaaaaaaaaaaaaa : ",""+xmlcode);
Looper.prepare();
if(!(xmlcode.toString().contains("<expenserecord>")) && getDBRecords())
{
doFirstTime();
Log.d("1","1");
}
else if((xmlcode.toString().contains("<expenserecord>")) && getDBRecords())
{
Log.d("2","2");
makeDropboxRecordArray();
performSync();
}
else if((xmlcode.toString().contains("<expenserecord>")) && !getDBRecords())
{
Log.d("3","3");
makeDropboxRecordArray();
fillDBwithDropboxRecords();
}
else if(!(xmlcode.toString().contains("<expenserecord>")) && !getDBRecords())
{
Log.d("4","4");
mErrorMsg ="No records exist to sync";
}
}
catch (Exception e)
{
Log.d("Exception in doback: ",""+e);
}
return true;
}
catch (DropboxUnlinkedException e)
{
mErrorMsg = "Error :Dropbox unliked";
// The AuthSession wasn't properly authenticated or user unlinked.
}
catch (DropboxPartialFileException e)
{
// We canceled the operation
mErrorMsg = "Download canceled";
}
catch (DropboxServerException e)
{
// Server-side exception. These are examples of what could happen,
// but we don't do anything special with them here.
if (e.error == DropboxServerException._304_NOT_MODIFIED)
{
mErrorMsg = "Server Error.....";
// won't happen since we don't pass in revision with metadata
}
else if (e.error == DropboxServerException._401_UNAUTHORIZED)
{
mErrorMsg = "Server Error : Unautherized user...";
// Unauthorized, so we should unlink them. You may want to
// automatically log the user out in this case.
}
else if (e.error == DropboxServerException._403_FORBIDDEN)
{
mErrorMsg = "Server Error : Access denied";
// Not allowed to access this
}
else if (e.error == DropboxServerException._404_NOT_FOUND)
{
no_file = true;
doFirstTime();
// path not found
}
else if (e.error == DropboxServerException._406_NOT_ACCEPTABLE)
{
mErrorMsg = "Server Error : Congestion...";
// too many entries to return
}
else if (e.error == DropboxServerException._507_INSUFFICIENT_STORAGE)
{
// user is over quota
mErrorMsg = "Server Error : Insufficient Storage...";
}
else
{
// Something else
mErrorMsg = "Server Error...";
}
// This gets the Dropbox error, translated into the user's language
mErrorMsg = e.body.userError;
if (mErrorMsg == null)
{
mErrorMsg = e.body.error;
}
}
catch (DropboxIOException e)
{
// Happens all the time, probably want to retry automatically.
mErrorMsg = "Network error. Try again.";
}
catch (DropboxParseException e)
{
// Probably due to Dropbox server restarting, should retry
mErrorMsg = "Dropbox error. Try again.";
}
catch (DropboxException e)
{
// Unknown error
mErrorMsg = "Unknown error. Try again.";
}
return false;
}
public void fillDBwithDropboxRecords()
{
Log.d("In fill db","yetoy");
try
{
for(int i=0 ; i<dropbox_records.size()-1 ; i++)
{
{
eop.addRecord(Integer.parseInt(dropbox_records.get(i).get(0)), dropbox_records.get(i).get(1), dropbox_records.get(i).get(2), Integer.parseInt(dropbox_records.get(i).get(3)));
}
}
}
catch (Exception e)
{
Log.d("In fill db", ""+e);
}
}
private void doFirstTime()
{
Log.d("yes2", " in do first time of download..");
try
{
if(!getDBRecords())
{
mErrorMsg = "No records exist to sync";
return;
}
newXMLCode.append("<smartexpense>");
for(int i=0 ; i<database_records.size() ; i++)
{
newXMLCode.append("<expenserecord>");
newXMLCode.append("<c_id>"+database_records.get(i).get(0)+"</c_id>");
newXMLCode.append("<title>"+database_records.get(i).get(1)+"</title>");
newXMLCode.append("<date>"+database_records.get(i).get(2)+"</date>");
newXMLCode.append("<amount>"+database_records.get(i).get(3)+"</amount>");
newXMLCode.append("</expenserecord>");
}//for
newXMLCode.append("</smartexpense>");
up = new UploadFile(mContext,mApi,newXMLCode.toString());
up.execute();
}
catch(Exception e)
{
Log.d("Exception in doFirtstTime : ",""+e);
}
}//doFirstTime
public void makeDropboxRecordArray()
{
Log.d("yes3", " in make record array of download..");
try
{
dropbox_xml_records = (xmlcode.toString()).split("</expenserecord>");
for(int i=0 ; i< dropbox_xml_records.length ; i++)
{
dropbox_records.add(new ArrayList<String>());
dropbox_records.get(i).add(dropbox_xml_records[i].substring(
((dropbox_xml_records[i].indexOf("<c_id>"))+
("<c_id>".length())),
dropbox_xml_records[i].indexOf("</c_id>")
));
dropbox_records.get(i).add(dropbox_xml_records[i].substring(
((dropbox_xml_records[i].indexOf("<title>"))+
("<title>".length())),
dropbox_xml_records[i].indexOf("</title>")
));
dropbox_records.get(i).add(dropbox_xml_records[i].substring(
((dropbox_xml_records[i].indexOf("<date>"))+
("<date>".length())),
dropbox_xml_records[i].indexOf("</date>")
));
dropbox_records.get(i).add(dropbox_xml_records[i].substring(
((dropbox_xml_records[i].indexOf("<amount>"))+
("<amount>".length())),
dropbox_xml_records[i].indexOf("</amount>")
));
}
}
catch (Exception e)
{
Toast.makeText(mContext,"In fill records :"+e , 2000).show();
}
}
public boolean getDBRecords()
{
Log.d("yes4", " in get dbrecords of download..");
try
{
Cursor cc = eop.getRecords();
if(cc.getCount() == 0)
return false;
int i=0;
if(cc.moveToFirst())
{
do
{
database_records.add(new ArrayList<String>());
database_records.get(i).add(cc.getString(cc.getColumnIndex("c_id")));
database_records.get(i).add(cc.getString(cc.getColumnIndex("title")));
database_records.get(i).add(cc.getString(cc.getColumnIndex("date")));
database_records.get(i).add(cc.getString(cc.getColumnIndex("amount")));
i++;
}while(cc.moveToNext());
}
cc.close();
}
catch(Exception ee)
{
Toast.makeText(mContext,"getDBRecords :"+ee , 2000).show();
}
return true;
}
public void performSync()
{
try
{
//compare database records with dropbox records
newXMLCode.append("<smartexpense>");
for(int i=0 ; i<database_records.size() ; i++)
{
newXMLCode.append("<expenserecord>");
newXMLCode.append("<c_id>"+database_records.get(i).get(0)+"</c_id>");
newXMLCode.append("<title>"+database_records.get(i).get(1)+"</title>");
newXMLCode.append("<date>"+database_records.get(i).get(2)+"</date>");
newXMLCode.append("<amount>"+database_records.get(i).get(3)+"</amount>");
newXMLCode.append("</expenserecord>");
}
for(int i=0 ; i<dropbox_records.size()-1 ; i++)
{
eop.addRecord(Integer.parseInt(dropbox_records.get(i).get(0)),
dropbox_records.get(i).get(1),
dropbox_records.get(i).get(2),
Integer.parseInt(dropbox_records.get(i).get(3)));
newXMLCode.append("<expenserecord>");
newXMLCode.append("<c_id>"+dropbox_records.get(i).get(0)+"</c_id>");
newXMLCode.append("<title>"+dropbox_records.get(i).get(1)+"</title>");
newXMLCode.append("<date>"+dropbox_records.get(i).get(2)+"</date>");
newXMLCode.append("<amount>"+dropbox_records.get(i).get(3)+"</amount>");
newXMLCode.append("</expenserecord>");
}
//}
newXMLCode.append("</smartexpense>");
Log.d("Comming : ","yetoy..");
up = new UploadFile(mContext,mApi,newXMLCode.toString());
up.execute();
}
catch (Exception e)
{
Log.d("Perform sync: ",""+e);
}
}
#Override
protected void onPostExecute(Boolean result)
{
//mDbHelper.close();
if (result)
{
//showToast("File successfully downloaded");
}
else
{
if(!no_file)
{
// Couldn't download it, so show an error
showToast("Error in sync.Check notification.");
Notification("SmartExpense", mErrorMsg);
}
}
}
private void showToast(String msg)
{
Toast error = Toast.makeText(mContext, msg, Toast.LENGTH_LONG);
error.show();
}
// Notification Function
private void Notification(String notificationTitle, String notificationMessage)
{
NotificationManager notificationManager = (NotificationManager)mContext.getSystemService(Context.NOTIFICATION_SERVICE);
Notification notification = new Notification(android.R.drawable.ic_menu_save, "Dropbox Sync", System.currentTimeMillis());
Intent notificationIntent = new Intent(mContext, UploadFile.class);
PendingIntent pendingIntent = PendingIntent.getActivity(mContext, 0, notificationIntent, 0);
notification.setLatestEventInfo(mContext, notificationTitle, notificationMessage, pendingIntent);
notificationManager.notify(10001, notification);
}
}

This error is received while you try and update your UI from a background thread. In your case the doInBackground method.
It appears that you are trying to post a notification from doInBackground from the following line.
Notification("SmartExpense", "Now syncing to dropbox");
This might be causing the issue. Try commenting this and any other UI updates you might be doing in doInBackground

This Exception indicates that you are trying to access UI elements in a non UI thread. From your code probably the problem is caused by these two lines inside your doInBackground method (you are accessing the Activity's context):
String cachefilePath = mContext.getCacheDir().getAbsolutePath() + "/" + FILE_NAME;
String cachezipPath = mContext.getCacheDir().getAbsolutePath() + "/" + ZIP_FILE_NAME;
If you declare this two variables outside the doInBackgroud method and instatiate them in your constructor, you should be ok. Also, remove the lines in your code that you are calling Looper.prepare() since they will not fix the problem.

save check box state in android after back button clicked

i am using check box for saving data in database .if it is checked then app redirecting to other screen by saving data after that if i click on device back button then app showing it is not checked.how can i fix this issue?
here i am placing code
public void joinLisn(){
String shareProfileType2=Constants.PROFILE_SHARE_ALL;
String accessToken = null;
DatabaseHelper helper = new DatabaseHelper(getApplicationContext());
DatabaseUtility dao = new DatabaseUtility(helper);
try {
accessToken = dao.getAccessToken();
} catch (Exception e1) {
handler.sendEmptyMessage(1);
return;
}
if(accessToken == null || accessToken.length() == 0){
handler.sendEmptyMessage(1);
return;
}
Map<String , String> params = new HashMap<String,String>();
params.put(Constants.ACCESS_TOKEN_PARAM, accessToken);
params.put(Constants.LISN_ID_PARAM, id);
params.put(Constants.PROFILE_TYPE_PARAM,shareProfileType2);
Status status = null;
try {
status = Utils.joinLisn(params, this);
} catch (NullPointerException e) {
handler.sendEmptyMessage(12);
return;
} catch (JSONException e) {
handler.sendEmptyMessage(11);
return;
}
if(status == null){
handler.sendEmptyMessage(1);
} else if(status.getStatus().equalsIgnoreCase(Constants.SUCCESS)){
try {
Intent lisnDetailIntent = new Intent(this, LisnDetailTabView.class).setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
Bundle bundleObj = new Bundle();
bundleObj.putString("id", id);
bundleObj.putString("RSVP","In");
lisnDetailIntent.putExtras(bundleObj);
startActivityForResult(lisnDetailIntent,0);
overridePendingTransition(android.R.anim.slide_in_left, android.R.anim.slide_out_right);
handler.sendEmptyMessage(8);
} catch(Exception ex) {}
} else{
handler.sendEmptyMessage(2);
return;
}
}

Override the onbackpressed to trigger your function to save the states.
public void onBackPressed() {
//Do your db saving here
super.onBackPressed();
}

If your app is redirecting to other app, your app will be put to background. Make use of onSaveInstanceState and onRestoreInstanceState to save and restore the checkbox state.