Mobile Development Forum

Does all .apk files can be decompiled no matter on how they are protected and secured, and recompile back in apk file? I have an apk file which i need the source code to change something a little bit. I tried using [javadecompilers](http://www.javadecompilers.com) but i did not get the main …

I'm broadcasting an intent in my app and receiving it with a broadcast receiver. I can handle the broadcasting and receiving. No problem with that. However, I want to register the receiver completely programmatically instead of doing it in the manifest file. Notice, that in the manifest file, there are …

Hi DW, I'm experiencing an issue I've tried invalidating, fixed the offline sync but still I'm getting this error. My App uses Firebase FCM. On the dependencies I have `com.google.firebase:firebase-core:16.0.5 com.google.firebase:firebase-messaging:17.3.4` My implementation `com.android.support:appcompact-v7:28.0.0-alpha1` This implementation is underlined with a red line and I think it is what having the …

Hi.please support my mobile

Hi guys, I'm having a weird problem regarding the simple ListView. On my emulator everything is allright and the data is loaded correctly from JSON API, the data also loads on my device. The problem is that on my emulator, the listview is populated but on my real device, not, …

I am developing an android app for the first time and I wanted to make the sessions for login and logout. I saw that most of the people suggested using SharedPreferences. But how can I check if the user logged out? If the user does not and clicks on my …

I am making an adroid application. I am saving sales data on firebase with current date. I have formatted the System.currentTimeMillis() into SimpleDateFormat. The date is successfully stored on firebase . Now I want to retrieve sales between two dates. I made two demo sales, one on (30-5-2019) and second …

In my main activity, I have two tab, named tab1 and tab 2. Tab 2 page consists of a listView and I use StreamSubscription to listen upload progress result. On tab2 action bar, it has one icon. When icon is pressed, it will navigate to pageC,which consists of listView, and …

This page keeps crashing on my iPhone, both in Mobile Safari as well as Chrome. https://www.daniweb.com/connect/developers/endpoints

Hi DW. I'm developing an App that uses the FCM notification, but the problem is that my code doesn't seem to get the actual data like when I extract the `message` or `body` it shows just the icon only if the notification was received when the App is open, and …

When posting code, I get error > begin a line with 4 spaces in a row (or one tab), preceded by a blank line. 4+ spaces or tabs may not be used anywhere else.

Hello i want to add fa fa-users (the users icon from font awesome) but when i do <i class="fa fa-users" aria-hidden="true"></i> i am not getting the icon, html displays the code of the font-f0c0 that is. Any guess why? p.s. i am using other fonts just fine e.g. contact, search …

Hello I'm try to use a hardware to create key for encryption in mobile devices( in a model at first) this is my question: can i get my keys from TPM? If is it possible, how can i do it?

Hi, I am an absolute beginner to Xamarin and just started to develop a small application wherein, I am not getting any idea about why the BindableProperty changes are not getting reflected inside the view model. Presently, I have written my BindableProperty in a separate Class and the code is …

Hi I am developing an app for a specific facebook page. The problem is that when i load URL in mywebview.loadURL(https://web.facebook.com/CoversShopping/). The page opens successfully but the page always reload when the oreintation changes. This problem only occurs for the above type Urls(i-e when I give the link of specific …

I have made a simple app which gets curren location (latitude and longitude). It is working perfectly. But now i want to take location updates. For this i implemented LocationListener interface . I overridded the metod On location Change, but when i run the application, this method does not respond …

Hello! I have installed android studio 3.0.1 in my laptop . I had some android projects in my desktop computer (with older version of android studio) But after installing latest version(3.0.1) of android studio in my laptop, i copied projects from my desktop to my laptop and opened that projects …

Hello i have a problem working with Camera on Ionic and i need some advice. I have installed both ionic camera and media capture plugins. I am using two scripts one to capture Video (Start Reocording) and one to capture a Photo (Take Photo) I am getting the errors displayed …

Hello, i am trying to do an Ionic app and i am getting an error. Any suggestion? Runtime error this.file.documentsDirectory is null [194]/HomePage.prototype.startRecord@http://localhost:8100/build/main.js:80:13 View_HomePage_2/<@ng:///AppModule/HomePage.ngfactory.js:36:19 handleEvent@http://localhost:8100/build/vendor.js:13608:132 callWithDebugContext@http://localhost:8100/build/vendor.js:15093:39 debugHandleEvent@http://localhost:8100/build/vendor.js:14680:12 dispatchEvent@http://localhost:8100/build/vendor.js:10057:16 renderEventHandlerClosure/<@http://localhost:8100/build/vendor.js:10671:38 decoratePreventDefault/<@http://localhost:8100/build/vendor.js:36353:53 F</l</t.prototype.invokeTask@http://localhost:8100/build/polyfills.js:3:15649 onInvokeTask@http://localhost:8100/build/vendor.js:4973:24 F</l</t.prototype.invokeTask@http://localhost:8100/build/polyfills.js:3:15562 F</c</r.prototype.runTask@http://localhost:8100/build/polyfills.js:3:10815 F</h</e.invokeTask@http://localhost:8100/build/polyfills.js:3:16787 p@http://localhost:8100/build/polyfills.js:2:27646 v@http://localhost:8100/build/polyfills.js:2:27893 home.html <ion-header> <ion-navbar> <ion-title> Sound Recorder & Player </ion-title> </ion-navbar> </ion-header> <ion-content padding> …

Hello i want to make a script in Ionic 3 to capture audio and video from device. index.html `<button ion button (click)="captureApp()" id="captureAudio">Capture Audio</button>` index.ts document.addEventListener("deviceready", onDeviceReady, false); function id(element) { return document.getElementById(element); } function onDeviceReady() { navigator.splashscreen.hide(); captureApp = new captureApp(); captureApp.run(); } function captureApp() { } captureApp.prototype = …

Hello i just started to use Ionic and i have some questions. First of all i downloaded an existing ionic project on GitHub to start. I do these commands and works fine. $ git clone https://github.com/srinivastamada/ionic-restful-authentication.git $ cd ionic-restful-authentication $ npm install $ ionic serve The project starts at localhost:8100 …

I tried to run an Ionic 3 project from existing files using not C++ but Apache/Cordova and i am getting these errors. Idid a Typescript project works fine. But Cordova won't run with Javascript? Severity Code Description Project File Line Suppression State Error TS2304 Build:Cannot find name 'object'. ionic2 C:\Users\Simon\AppData\Local\Microsoft\Windows\INetCookies\Desktop\Various …

Hello i am getting an error on log about npm... Any suggestion? PATH=.\node_modules\.bin;C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\Web\External;%PATH%;C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\Common7\IDE\CommonExtensions\Microsoft\TeamFoundation\Team Explorer\Git\cmd;C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\Common7\IDE\CommonExtensions\Microsoft\TeamFoundation\Team Explorer\Git\mingw32\bin "C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\Web\External\npm.CMD" install npm WARN deprecated babili@0.0.10: babili has been renamed to babel-minify. Please update to babel-minify npm WARN engine …

Hello how do you feel about Ionic 3 and Angular 4 frameworks? Are they compatible with Ios? Do i need to know Java to use them?

I've come across a little problem. How do I make it so that after my game is finished, I can choose whetever to exit my program or just restarting it from the beginning. In main method I've started my while loop to check my tries left if my counter is …

Hello everyone,I am having no experience in android or mobile app develpment but having some questions is it possible to have app which works offline without internet(devices can be connected LAN) where in each device have data stored of main stock of items which will be updated once in month.Now …

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 …

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 …

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.  

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 …

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 …

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 …

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 …

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 …

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 guys! I'm trying to create a countdown timer for a memory app. The user is given about 5-10 seconds to look at the gridview of pictures then the countdown timer starts. I was wondering how I can achieve this. The code below shows the countdown timer which starts at …

Hello, I need help with android programming. The problem is that I can't make this portion of my codes to work the way I want to. I want to simply: - Delete a record inside the SQL lite database - Delete the record also inside the AlertDialog Single Choice Item …

Hello i ve got this message from a fellow programmer. * Directly you load your site from your server in to android or IOS like iframe, we have the option in mobile device webview you can directly load your site url into the mobile app* and this * if you …

Hi all, I've been trying to follow the basic Apple developer tutorial, where you create a food tracker app. I can not get one part of the code to work, and I can't see why. Not only is it exactly the same as in the example, but searches online also …

Hello has anyone build an app using Ionic Creator?

ello i am a bit confused because i asked a couple of programmers but i couldnt get a straight answer. I want to make my website -it is written in PHP, Javascript, Jquery- a multiplatform app. As far as i read flash builder for PHP with ZEND is the best …

Hi I am currently developing a mobile / tablet application and i've run into a stump. I have a webview that loads a form from a website that i have no control over, this website utilises the django platform. So the situation is this: The form on the foreign website …

Hi, I am trying to import the package com.google.android.gms.gcm.GoogleCloudMessaging into my project. I get an error saying the cannot resolve symbol. Can you please help me. Thanks in advanced.

I have an idea for an android app/add-on. I'm basically a Java programmer and I can develop this using HTML/CSS/JQUERY etc. However, I have no idea on how to develop this for Andriod. Where would be a good place to getting start on app development.

everbody, pls i m working on android application with the side menu navigation drawer with fragment and webview but android back button key is not working. this my code Main Activity public class MainActivity extends Activity {String[] menutitles; TypedArray menuIcons; String[] pageUrl; // nav drawer title private CharSequence mDrawerTitle; private …

I have an app that uses GPS proximity alerts. I want to populate two textviews from my string.xml when the proximity alert fires off. Does anyone know how to do this?? Thanks, hendo

Hi all, I'm writing a scavenger hunt app and want to use the Proximity Alert functions. I'm having a hard time to finding any decent tutorials to help me with this. Does anyone have a code snippet on it's use that I can go off of? Much appreciated, Hendo

Hello guys , am new to Android Development, I've created many test apps for learning, using webview and lists and creating multiple activities, I have an application that get URL with JSON data contain url with streaming video and when click on button open VLC with URL provided. JSon FILE …