Develop Reference

toolbar button disappearing when dialog closed

my app is fairly simple and always works IF my IOT device is up.
i need to load a popup and show the ReScan button on the toolbar if the device cannot be found.
the app preloads IPaddress="-" and loads 2 asyncTask(s)
one uses NsdManager.DiscoveryListener to find the mDNS name and loads the IP into IPaddress
this task watches to see IPaddress change and gets the presets from the device by JSON and sets up the UI or pops up the error dialog with instructions if not found.
MY PROBLEM:
when counter >= 15 , i show the "Rescan" Button on the toolbar with setMenuVisible() then popup the error dialog but when the button in the dialog is pressed to close the dialog, the "Rescan" Button disappears again.
Also times out in about 5 seconds.
how do i get the "Rescan" Button to stay?
.
private class getSettingsFromClock extends AsyncTask<Void, Void, Void> {
#Override
protected Void doInBackground(Void... params) {
String mlooper = IPaddress;
Log.i(TAG, "LOG getSettingsFromClock doInBackground started ");
int counter = 0;
while ( mlooper.equals("-") ) {
mlooper = IPaddress;
try {
Thread.sleep(600);
} catch (InterruptedException e) {
e.printStackTrace();
}
counter++;
if (counter >= 15) // in normal operation counter never goes above 3
{
Log.i(TAG, "LOG getSettingsFromClock - NO IP Found, count= " + counter );
runOnUiThread(new Runnable() {
#Override
public void run() {
setMenuVisible( true, R.id.action_rescan); // show rescan button on toolbar
try { // delay is debugging only
Thread.sleep(500);
} catch (InterruptedException e) {
e.printStackTrace();
}
//scanning failed Popup Dialog
final Dialog dialog = new Dialog(context );
dialog.setContentView(R.layout.popup);
dialog.setTitle("Scan Error");
Button button = dialog.findViewById(R.id.Button01);
button.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View view) {
dialog.dismiss();
}
});
dialog.show();
Toast.makeText(getApplicationContext(),
"Could Not get presets from clock. \n check Clock is on and on WiFi\n and reload app.",
Toast.LENGTH_LONG).show();
}
});
break;
}
}
if( IPaddress != "-" )
{
// gets JSON here
} else
{
// add popup - IOT Not found
}
// JSON starts here
if (JSON_return != null) {
try {
// loads presets from JSON to UI here
} catch (final JSONException e) {
Log.e(TAG, "LOG, JSON parsing error: " + e.getMessage());
}
} else
{
Log.e(TAG, "LOG, Could Not get JSON from Clock.");
}
return null;
}
} // end asyncTask class
// remember to run on main thread
// NOTE; private Menu option_Menu; declared in MainActivity
// ie; setMenuVisible( true, R.id.action_rescan);
public void setMenuVisible(boolean visible, int id) {
if (option_Menu != null) {
option_Menu.findItem(id).setVisible(visible);
}
}

Mike M. had it, Thank You Mike
added onPrepareOptionsMenu()
added showRescan = visible; and invalidateOptionsMenu(); to setMenuVisible()
all work perfectly now.
#Override
public boolean onPrepareOptionsMenu(Menu menu) {
super.onPrepareOptionsMenu(menu);
try {
if( showRescan )
{
option_Menu.findItem(R.id.action_rescan).setVisible( true );
} else
{
option_Menu.findItem(R.id.action_rescan).setVisible( false );
}
}
catch(Exception e) {
Log.e(TAG, "onPrepareOptionsMenu error");
}
return true;
}
// when task is completed you can show your menu just by calling this method
// remember to run on main thread
// ie; setMenuVisible( true, R.id.action_rescan);
public void setMenuVisible(boolean visible, int id) {
if (option_Menu != null) {
option_Menu.findItem(id).setVisible(visible);
showRescan = visible;
invalidateOptionsMenu();
}
}

parse.com calling .save() causes all queries to stop working Android

I have two objects, a establishment object that belongs to a deal object that can be voted upon. If I up/down vote the same deal multiple times, the seventh time I vote the query just sits and does not do anything. The app does not crash, but it also does not save. If I go into another activity that requires a parse.com query that query also will not work. Here is my up vote logic (down voting is identical).
Assume all vars used are initialized before onCreate().
Are my queries getting backed up in a pipe somewhere?
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
upVoteButton = (Button) findViewById(R.id.deal_up_vote_button);
upVoteButton.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View arg0) {
new UpVoteTask().execute();
}
});
}
// visually changes buttons if they are selected
private void setButtons(Boolean queryDb) {
if (queryDb == true) {
queryParse();
}
// if deal found correctly
if (deal != null) {
// if user found correctly
if (dealVoteUser != null) {
if (dealVoteUser.get("vote").toString().equals("0")) {
upVoteButton.setPressed(false);
downVoteButton.setPressed(true);
} else if (dealVoteUser.get("vote").toString().equals("1")) {
upVoteButton.setPressed(true);
downVoteButton.setPressed(false);
} else if (dealVoteUser.get("vote").toString().equals("2")) {
upVoteButton.setPressed(false);
downVoteButton.setPressed(false);
}
}
}
}
// queries parse and populates vars
private void queryParse(){
ParseQuery<ParseObject> queryDeal = ParseQuery.getQuery("Deal");
queryDeal.whereEqualTo("objectId", deal_id);
try {
deal = queryDeal.getFirst();
} catch (ParseException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
ParseQuery<ParseObject> queryDealVoteUser = ParseQuery
.getQuery("deal_vote_users");
queryDealVoteUser.whereEqualTo("deal", deal).whereEqualTo("user",
ParseUser.getCurrentUser());
try {
dealVoteUser = queryDealVoteUser.getFirst();
} catch (ParseException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
// UpVoteTask AsyncTask
private class UpVoteTask extends AsyncTask<Void, Void, Void> {
#Override
protected void onPreExecute() {
super.onPreExecute();
// Create a progressdialog
if(upVoteProgressDialog != null){
upVoteProgressDialog.dismiss();
upVoteProgressDialog = null;
}
upVoteProgressDialog = new ProgressDialog(DealsDetailsActivity.this);
// Set progressdialog message
upVoteProgressDialog.setMessage("Saving...");
upVoteProgressDialog.setIndeterminate(false);
// Show progressdialog
upVoteProgressDialog.show();
}
#Override
protected Void doInBackground(Void... params) {
queryParse();
// if deal found correctly
if (deal != null) {
// if user has not voted yet
if (dealVoteUser == null) {
// create new and assign vote to 1
dealVoteUser = new ParseObject("deal_vote_users");
dealVoteUser.put("deal", deal);
dealVoteUser.put("user", ParseUser.getCurrentUser());
dealVoteUser.put("vote", 1);
up_votes = deal.getInt("up_votes") + 1;
down_votes = deal.getInt("down_votes");
// if user already down voted
} else if (dealVoteUser.get("vote").toString().equals("0")) {
// change vote to 1
dealVoteUser.put("vote", 1);
up_votes = deal.getInt("up_votes") + 1;
down_votes = deal.getInt("down_votes") - 1;
// if user already up voted
} else if (dealVoteUser.get("vote").toString().equals("1")) {
// already voted up, remove vote
dealVoteUser.put("vote", 2);
up_votes = deal.getInt("up_votes") - 1;
down_votes = deal.getInt("down_votes");
// if user already voted but cleared vote
} else if (dealVoteUser.get("vote").toString().equals("2")) {
// change vote to 1
dealVoteUser.put("vote", 1);
up_votes = deal.getInt("up_votes") + 1;
down_votes = deal.getInt("down_votes");
}
// calculate overall rating percentage
if ((up_votes + down_votes) != 0) {
rating = (up_votes / (up_votes + down_votes)) * 100;
} else if ((up_votes == 0) && (down_votes == 0)) {
rating = 0;
} else {
rating = 50;
}
deal.put("rating", rating);
deal.put("up_votes", up_votes);
try {
deal.save();
} catch (ParseException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
try {
dealVoteUser.save();
} catch (ParseException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
} else {
// deal not found problem
}
return null;
}
#Override
protected void onPostExecute(Void result) {
// visually change buttons without querying db
setButtons(false);
//remove progress dialogue
if(upVoteProgressDialog != null){
upVoteProgressDialog.dismiss();
upVoteProgressDialog = null;
}
}
}

Use the saveInBackground method - it will do the same as save, but also save it to your application's cache so that you won't get different values while the data is being saved, so it won't have any apparent effect on your application. It's the best method to save or find (it has a 'sister' method named findInBackground). It acts like an Async task and does not clog your main thread.

I switched all parse calls over to ._____InBackground() and I moved the save logic to onPause(). This way I am not making multiple save calls to parse if the user decides to change their vote multiple times.

How to do google inapp purchase in an adapter class

I am developing an app which has google in app purchase. There is a button buy now and after clicking the button I have to call inapp purchase but here is the problem I am facing, the buy now button is in an adapter class hence how can I do inapp purchase in an adapter class
here is my code
public void onClick(View v) {
switch (v.getId()) {
case R.id.loadmore_btn:
// call a url with ofset & limit with Thread
if (getbookItems.getContentName() == "LoadMore") {
booksItemsInfo.remove(booksItemsInfo.size() - 1);
}
if (UIAndDataLoader.offset < bookcategoryItem.getCount()) {
if (UIAndDataLoader.offset < DBTotalContentCount) {
UIAndDataLoader.offset = UIAndDataLoader.offset + 10;
UIAndDataLoader.loadFlag = 0;
myActivity.Tostart();
} else {
myActivity.URLConfig = MagURLConfig.bURL
+ MagURLConfig.uMAILIDNAME
+ _Settings.getString("setEmail-ID", null)
+ MagURLConfig.uPASSWORD
+ _Settings.getString("setPassword", null)
+ MagURLConfig.CATEGORYID
+ bookcategoryItem.getCatId() + MagURLConfig.OFFSET
+ DBTotalContentCount + MagURLConfig.LIMIT;
UIAndDataLoader.bookcountlimit = 1;
myActivity.toStartRefresh(true);
}
}
break;
case R.id.btn_buynow:
// System.out.println("this is buy btn------------->");
BookDataLoader.ActionButtonOnclick(btn_txt, action_btn,
getbookItems, "");
break;
case R.id.preview:
BookDataLoader.ActionButtonOnclick(btn_txt, action_btn,
getbookItems, "Preview");
break;
}
}
}

You can declare the adapter class in the same activity.thats why you can user mHelper object.
I done the same functionality in one of application for in puchase item.
like:-
holder.relative_layout_btn_buy.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
try {
if(isOnline())
mHelper.launchPurchaseFlow(OnlineStoreList.this,"android.test.purchased",RC_REQUEST,mPurchaseFinishedListener, "");
else
{
NetworkAlert();
}
} catch (Exception e) {
// Toast.makeText(getApplicationContext(),"Please wait...Try after some time!! " ,1).show();
Log.e("Exception", "===>" + e.toString());
complain(e.getMessage());
}
}
});
I hope with will help.Thanks!!

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.

on scrolling in listview get force close

i write a code in onScrollStateChanged event of listview .
but when scroll changed fast, get force close .
public void onScrollStateChanged(AbsListView arg0, int arg1) {
try {
int getCur = (lstName.getLastVisiblePosition() + 1) % maxName;
if (myCR != null) {
if (getCur == 0) {
Parcelable state = lstName.onSaveInstanceState();
fillList();
lstName.onRestoreInstanceState(state);
}
}
} catch (Exception e) {
}
}
Completed Logcat :
http://up.persianscript.ir/uploads/137181658700741.zip