Mobile Development Forum

Hi All, I am new to Android developement now i need to develop a OCR application. in that i need to get Retailer name and Total from Expense receipts. for example Costo / Walmart using their Logo in top of the receipt. i need to Train tesseract to understand that …

Hi to all! I made a class named “Database” I called openOrCreateDatabase in in its constructor but it was giving error. Then I searched on internet and got a solution that in case of non activity class I should also pass context. Then I passed context but then I am …

hi to all! i have installed android studio, my sdk path is C:\ androidsdk\sdk\sdk . my android studio installed successfully. but after installation when android studio opens then in event log tab an error message appears: Grade sync failed: Cause: failed to find target with hash string ' android-19' in …

Hello All, I am unable to import javax.sound.sampled in a mobile app I have been playing with. I am currently using AndroidStudio and I do have the path pointing to the JDK not the JRE. I was for a while able to import them when I included the jar files …

Not sure why but the chronometer counter will start as soon as the application starts without me clicking the button. Does anyone see what the issue would be? package com.example.android.courtcounter; import android.os.SystemClock; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.view.View; import android.view.Window; import android.view.WindowManager; import android.widget.TextView; import android.widget.Chronometer; public class MainActivity extends …

Hi,I am new to android programming In my app I am launching an another app(whats app,calculator,etc) I can launch any app successfully by using this code: Intent i=getPackageManager().getLaunchIntentForPackage("your package name"); i.setFlags(Intent.FLAG_ACTIVITY_REORDER_TO_FRONT); startActivity(i); But it always created new instance/restarted of the app.I want it to launch and resume it from where …

Hello guys .Plz help I am stucking in my first android program. IDE is Android Studio 1.0.1. "R.layout.activity_main" when i move pointer on 'R' it shows "cannot resolve symbol 'R' ". I have done "restart" android studio. I have done" clean project and rebuild project".

I designed app to make order for pizza food restaurant I show userid,menu id ,address,longtiude,latitude then press on button make order Error show after I press button and found in async task doin background It give me fatal exception error An error occurred while executing doInBackground() and it show to …

Hello to all! I have started learning android recently and I am facing a problem in file handling (in internal storage). I wrote a simple program which creates a file and writes some data in that file . I have two buttons first button writes data in the file and …

hi everyone, i am currently creating an app in android and i used a package from kivy garden;androidtabs but i want to open another screen but it doesnt seem to work from kivy.app import App from kivy.uix.boxlayout import BoxLayout from kivy.uix.button import Button from kivy.uix.textinput import TextInput from kivy.uix.floatlayout import …

I'm a beginning Android Developer trying to learn the file system, etc. I'm hoping to eventually delve into Home Automation and traffic analysis using phones/GPS, but I'm in the beginning arc of this learning curve. My background is mostly C/C++, though I've done some work in Java. I'm not so …

Dear all! Is there any way to animate icons on home screen in android app using android studio like [IPhone](https://www.youtube.com/watch?v=Q9HOne7zLro) provides some effects of motion. There are some apps like clean master on google play store that animates its own icon as user clicks icon of clean master to clean …

I'm getting my ArrayList from a service and populate my ListView with it when user creates the widget. I have 3 button on my widget and I want to modify/filter the data in the ListView by button click. I saw examples of pending indent but I couldn't reach my ArrayList …

Greetings everyone, I'm still new to android programming and currently leanrning how to connect to DB. I'm following a online tutorial but I'm still facing problems. The tutorial is about creat a registration form and sending it to the database through volley. I'm using .hostinger.ae as host and Android studio. …

I keep getting a direct identifier error. I have tried deleting the pillarPlat004 assets and re-importing it and connecting it to the code, but that doesn't seem to be the problem. I'm using swift in xcode.  

Hi guys! im working with google places and i'm currently able to show 20 markers on the map. I have a FloatingActionButton on my map screen and once the user presses/clicks on it it should display the markers based on the next_page_token. Currently ive hard coded one in for testing …

Can anyone tell me what is wrong with this? App crashes if user input is left blank. I was hoping it would display toast and wait for input. EditText userWireInput = (EditText) findViewById(R.id.WireSizeInputET); String userWireData = userWireInput.getText().toString(); double userWire = Double.parseDouble(userWireData); if (userWire == 0) { Toast.makeText(ISOM_Int_Results.this, "ENTER WIRE SIZE", …

Error:Unable to load class 'com.android.tools.idea.gradle.project.GradleProjectSyncData'. Possible causes for this unexpected error include:<ul><li>Gradle's dependency cache may be corrupt (this sometimes occurs after a network connection timeout.) <a href="syncProject">Re-download dependencies and sync project (requires network)</a><li>The state of a Gradle build process (daemon) may be corrupt. Stopping all Gradle daemons may solve this …

i am implementing Google Drive in Android with Java code i didnt use Android formats, i just created client id and i used in Manifest <meta-data android:name="com.google.android.apps.drive.APP_ID" android:value="id=344123456789"/> and my code to create folder is credential = GoogleAccountCredential.usingOAuth2(this, Collections.singleton(DriveScopes.DRIVE)); credential.setSelectedAccountName(accountName); service = getDriveService(credential); java.io.File fileContent = new java.io.File(path); FileContent mediaContent …

I have a series of activities the last of which holds results. I have 'Send to Printer' button which needs to send these results to a wireless printer. Can anyone give me an example of doing this? I''ve trawled the web but there seems to be very little on this …

Hi, I am programming an app and facing a problem now. I want to Update my Database over the GUI from my App via PHP. My Problem is that the app always sends the value of the checkbox even if it is unchecked. I will post my Script below. update.php …

So i have been searching all the net but haven't exactly found what I'm looking for and I'm starting to believe that it is impossible. The problem is that I have a local MS SQL Server stored on my notebook. What I would like to do is an android application …

I want to develope app for android which open realtime camera from application and in that i can change different color or shades of lips(Mouth) ...i am stuck .. i wasted so much time in this please revert me back soon

i am a newbie

I am working on project, where i want to show multiple list view (different design layout using different layoutsa for lists) using one list adapter class, in one Main Activity class. Like i want to show first list view on first button click, and then i want to show second …

Hello , I want to show some images in my app using php and universal-image-loader-1.9.1 Iam an stater and I have collected some code from another apps, My problem is when i use the same code to add the gallery in my app it was showing application stopped. If any …

Hello, I'm using the rotate-layout library by rongi (https://github.com/rongi/rotate-layout) to achieve a horizontal list view by implementing the suggestion given by Kc Ochibili as an answer to this question: http://stackoverflow.com/questions/3240331/horizontal-listview-in-android. I'm getting the following errors when I try to use the library: "error: Error parsing XML: unbound prefix" and "Attribute …

Hi All, Back after a LONG break from Daniweb, love the new look! I have the following data scanned from a pdf417 and need to extract certain text to certain text fields, not sure how to go about this... Data scanned with manatee works plugin and android app using android …

# Good day to all ..i need help with this..i want to delete and edit the selected row from a listView with the use of alert dialog.i have a bit knowledge of constructing an alert dialog in my class..the problem is the method to call for deleting and editing from …

I've made a simple webview app . I have tried a lot but I cant get it to work, refered to link dint work out . Hope someone can help me here. admob is not displaying after the splash screen .if linearlayout changed to Relativelayout ad appears without splash screen …

Why can't I use || or && with double as in sample below? if (((mDiameter = 1 || mDiameter = 1.2) && mPitch = 0.25) || (mDiameter = 1.6 && mPitch = 0.35) || (mDiameter = 2 && mPitch = 0.4) || (mDiameter = 2.5 && mPitch = 0.45) || …

Hello guys am totally new to java development but I red some tutorial on web on how to create different application on Android Studio. I've created simple webview application with navigation drawer and everything work perfect, when I tried to add Parse.com SDK to use notification service my program crashes …

I'm currently working on an android app to fetch data from the server. But when i run it, i get a NullPointerException. Can anyone help me with that? Here is my code: public class MainActivity extends AppCompatActivity { ListView lvPost; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); lvPost = …

The code below works ok and displays result (mDisplayNominalEff) to screen but I want to round the result to 3 places. I assume that I need to parse string to double. Any ideas on how to do this? String mDisplayNominalEff = ("" + (myDiameter - (myPitch * 0.649519))); TextView displayNominalEff …

I have 4 textviews which take their values from dropdown list (spinner) selected at previous screen. There can be either 2 or 4 numbers/letters as result of this selection. The first position will always be a number and the second position will always be a letter. The third position can …

I'm creating a small and simple app to use with my poker league. I've created a small DB that I simply enter the player name, who took them out, and what place they went out in. All of that works just fine. What I need to do is implement the …

Hi, I am struggling with xml layout in my android app... please help here is what I want: I have to display two poarts in one activity - image part and login component part which are in one linearLayout. When the device is landscape, I want it to be 30% …

Hello all, My chess piece images are being cropped from the bottom. There is a sense of a squeeze which seems to make the bottom parts of my images disappear. Can anyone tell me why this is happening? Thank you in advance... [Click Here](https://www.facebook.com/photo.php?fbid=10153417612584037&set=gm.937346006302419&type=3&theater) <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" …

Hello , i am new in adroid programing , and i need some help and info D: I create an activity with a log in "user" and "pass" and takes the user to the welcome activity, the log in works perfect but when i close the app , and re …

Hello guys! I'm currently working on a matching app. In the app, the user can select what mode of difficulty they want(easy, medium, hard and suvival) as well as select one of the sets of images for the GridView(nba logos or world flags). My problem is that when the user …

public class MainActivity extends ActionBarActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); ParseObject.registerSubclass(MyFirstClass.class); Parse.initialize(this, "Id", "Id"); Button button = (Button)findViewById(R.id.button1); button.setOnClickListener(new OnClickListener() { @Override public void onClick(View arg0) { callSearch(); } }); ParseUser user = new ParseUser(); user.setUsername("username"); user.setPassword("password"); /*user.signUpInBackground(new SignUpCallback() { @Override public void done(ParseException arg0) { …

Hello, i faced some problem in building the android calculator. The problems like this: 1) If i click 2 + 3, it worked well, and screen will show the 5.** BUT! **when i clicked + and + and + and +...... it will continuosly add the answer. How can i …

List Fragment height is not working properly, it only shows 1st row of list, other rows of list dont show. I used wrap content for height but not working. If i run Fragment directly it shows all rows but if i add fragment in my main activity its show single …

I'm working on an android project and created a widget for toggling Bluetooth (i.e., Pressing the widget turn on Bluetooth if turned off and vice versa). But the problem is that click listener of button is not working and when I click on the widget on the home screen it …

Dear All, I am working on IM app . I want to add call featuer in my app. I googled alot and downloaded 10's of projects but unable to execute them due to missing files. I am looking for running project of Doubango or PJSIP so that I can use …

Hey guys! I'm currently working on a simple matching game. The game has 3 difficulties: easy, medium, and hard. When the game starts up, it is already set to the easy difficulty with 12 tiles. Medium difficulty displays 20 tiles and hard difficulty displays 30 tiles. I've figured out how …