Develop Reference

Can't open APK file on smartphone

I've made an application in eclipse using android project. Now I installed that APK-file on my smartphone.
When I hit install, it just installs, it's fine. But then I get the option "Cancel", or "open". But I can't click on "Open".
Just nothing happens every time I try to open it. It's not with my other apps.
I can find it at "downloads", but I just can't open it. I can update and install it again countless times. Unknown sources in my settings is on.
Does anyone know this issue, and/or how to fix it?
Help would be appreciated.
Manifest code:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.rodekruis"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="21" />
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name=".MainActivity"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.Main" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name=".BezoekActivity"
android:label="#string/app_name" >
<intent-filter>
<action android:name="com.example.rodekruis.BezoekActivity" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
<activity
android:name=".AfspraakActivity"
android:label="#string/title_activity_afspraak" >
</activity>
<activity
android:name=".ContactActivity"
android:label="#string/title_activity_contact" >
</activity>
<activity
android:name=".MeningActivity"
android:label="#string/title_activity_mening" >
</activity>
<activity
android:name=".RouteActivity"
android:label="#string/title_activity_route" >
</activity>
<activity
android:name=".SpecialistenActivity"
android:label="#string/title_activity_specialisten" >
</activity>
<activity
android:name=".BWCActivity"
android:label="#string/title_activity_bwc" >
</activity>
<activity
android:name=".AgendaActivity"
android:label="#string/title_activity_agenda" >
</activity>
<activity
android:name=".InfoActivity"
android:label="#string/title_activity_informatie" >
</activity>
<activity
android:name=".VriendActivity"
android:label="#string/title_activity_vriend" >
</activity>
<activity
android:name=".FoldersActivity"
android:label="#string/title_activity_folders" >
</activity>
<activity
android:name=".NieuwsActivity"
android:label="#string/title_activity_nieuws">
</activity>
</application>
</manifest>

Have you been able to launch it through ADB directly in Android Studio ?
You might want to do it this way during your implementation, it is much faster to build and test.
Just enable the developer mode in the settings and the "usb debugging" in the new menu that appeared (also in settings). You can now connect your phone to your computer and enjoy the simplicity of creating apps on Android.

Register your launchable Activity in AndroidManifest.xml like this-
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:supportsRtl="true"
android:theme="#style/AppTheme">
<!--______________Activities______________-->
<activity
android:name=".MainActivity" //launchable activity
android:screenOrientation="portrait">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
Hope this will help you.

Can't open APK file on mobile device after installing from PC

I've made an Android application using Eclipse. It has no errors, good to go, but I wanted to test it on my own phone first. I copied the APK file to my Samsung Galaxy S6 using an USB cable. Unplugged it, made sure the file version is not higher or later than my android version on my phone.
Used an APK installer app, and it's installed. It's at my files, and I can update it how many times I want. After updating, or installing it gives 2 buttons in the button. "Ready" and "Open". "Ready" is the only one clickable, and leaves the page. I can't open the apk-file. I've followed every tutorial but I just can't open it.
This is my Manifest code:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.rodekruis"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="21" />
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:supportsRtl="true"
android:theme="#style/AppTheme" >
<activity
android:name=".MainActivity"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name=".BezoekActivity"
android:label="#string/app_name" >
<intent-filter>
<action android:name="com.example.rodekruis.BezoekActivity" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
<activity
android:name=".AfspraakActivity"
android:label="#string/title_activity_afspraak" >
</activity>
<activity
android:name=".ContactActivity"
android:label="#string/title_activity_contact" >
</activity>
<activity
android:name=".MeningActivity"
android:label="#string/title_activity_mening" >
</activity>
<activity
android:name=".RouteActivity"
android:label="#string/title_activity_route" >
</activity>
<activity
android:name=".SpecialistenActivity"
android:label="#string/title_activity_specialisten" >
</activity>
<activity
android:name=".BWCActivity"
android:label="#string/title_activity_bwc" >
</activity>
<activity
android:name=".AgendaActivity"
android:label="#string/title_activity_agenda" >
</activity>
<activity
android:name=".InfoActivity"
android:label="#string/title_activity_informatie" >
</activity>
<activity
android:name=".VriendActivity"
android:label="#string/title_activity_vriend" >
</activity>
<activity
android:name=".FoldersActivity"
android:label="#string/title_activity_folders" >
</activity>
<activity
android:name=".NieuwsActivity"
android:label="#string/title_activity_nieuws">
</activity>
</application>
</manifest>
Does anybody knows why this is, or how I can solve it? If I need to add more things, feel free to ask. I'm struggling with this and really want it to work on my phone. Thanks in advance!

Activate USB debugging. It is easier.
Also:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.rodekruis"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="21" />
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:supportsRtl="true"
android:theme="#style/AppTheme" >
<activity
android:name=".MainActivity"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name=".BezoekActivity"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.category.DEFAULT" />
<category android:name="com.example.rodekruis.BEZOEKACTIVITY" />
</intent-filter>
</activity>
<activity
android:name=".AfspraakActivity"
android:label="#string/title_activity_afspraak" >
</activity>
<activity
android:name=".ContactActivity"
android:label="#string/title_activity_contact" >
</activity>
<activity
android:name=".MeningActivity"
android:label="#string/title_activity_mening" >
</activity>
<activity
android:name=".RouteActivity"
android:label="#string/title_activity_route" >
</activity>
<activity
android:name=".SpecialistenActivity"
android:label="#string/title_activity_specialisten" >
</activity>
<activity
android:name=".BWCActivity"
android:label="#string/title_activity_bwc" >
</activity>
<activity
android:name=".AgendaActivity"
android:label="#string/title_activity_agenda" >
</activity>
<activity
android:name=".InfoActivity"
android:label="#string/title_activity_informatie" >
</activity>
<activity
android:name=".VriendActivity"
android:label="#string/title_activity_vriend" >
</activity>
<activity
android:name=".FoldersActivity"
android:label="#string/title_activity_folders" >
</activity>
<activity
android:name=".NieuwsActivity"
android:label="#string/title_activity_nieuws">
</activity>
</application>
</manifest>
You have to have a launcher defined. The rest have to be defined as you originally defined the first activity with default and the package name. The main activity(the first to launch) has to be defined with MAIN and LAUNCHER
EDIT:
OK, I screwed up. I updated it. Action cannot be the package name:
<action android:name="android.intent.category.DEFAULT" />
<category android:name="com.example.rodekruis.BEZOEKACTIVITY" />
You did it the other way around which is why it didnt work. You have to do the default and name for all the activities. The MainActivity was written correctly

I can't see my app in the list of recently opened Android apps

When I pressed home button on my android device, my app should appear on recent app but I can't see it.
And this is my manifest file :
<?xml version="1.0" encoding="utf-8"?>
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<application
android:name="com.hu.restaurantfinalproject.graduationProject.Libraries_Classes.AppController"
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name="com.hu.restaurantfinalproject.graduationProject.Activities.getDataItems"
android:label="#string/app_name" >
<meta-data
android:name="android.support.PARENT_ACTIVITY"
android:value="com.hu.restaurantfinalproject.graduationProject.Activities.FilterActivity" />
</activity>
<activity
android:name="com.hu.restaurantfinalproject.graduationProject.Activities.AddR"
android:label="#string/title_activity_add_r" >
<meta-data
android:name="android.support.PARENT_ACTIVITY"
android:value="com.hu.restaurantfinalproject.graduationProject.Activities.getDataItems" />
</activity>
<activity
android:name="com.hu.restaurantfinalproject.graduationProject.Activities.RatingAndComment"
android:label="#string/title_activity_rating_and_comment" >
</activity>
<activity
android:name="com.hu.restaurantfinalproject.graduationProject.Activities.FilterActivity"
android:label="#string/title_activity_filter"
>
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name="com.hu.restaurantfinalproject.graduationProject.Activities.AddL"
android:label="#string/title_activity_add_lawyer" >
<meta-data
android:name="android.support.PARENT_ACTIVITY"
android:value="com.hu.restaurantfinalproject.graduationProject.Activities.getDataItems" />
</activity>
<activity
android:name="com.hu.restaurantfinalproject.graduationProject.Activities.ShowFullImageItem"
android:label="#string/title_activity_show_full_image_item" />
<activity
android:name="com.hu.restaurantfinalproject.graduationProject.Activities.AddD"
android:label="#string/title_activity_add_doctor" >
</activity>
</application>
Please help!
When I pressed home button on my android device, my app should appear on recent app but I can't see it.

Be sure that your android:label="#string/title_activity_filter" is defined properly.

Android application not installed on device error

I have an application that I have created on Eclipse. However, when I run this application, the widget is not appearing on the home screen. So, the only way to run the application is by connecting it via a USB cable and running it through the software, so I am unable to use the application on the move.
Is there anyway to solve this issue?
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.sunveersinghseera.wardrobematcher"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="20" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.hardware.CAMERA" />
<uses-feature android:name="android.hardware.camera" />
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name="com.sunveersinghseera.wardrobematcher.MainActivity"
android:configChanges="orientation|screenSize"
android:label="#string/app_name" >
<intent-filter>
<action android:name="com.sunveersinghseera.wardrobematcher.MainActivity" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
<activity
android:name=".Camera"
android:label="#string/title_activity_camera" >
</activity>
<activity
android:name=".Gallery"
android:label="#string/title_activity_gallery" >
</activity>
<activity
android:name=".Favourites"
android:label="#string/title_activity_favourites" >
</activity>
<activity
android:name=".Categories"
android:label="#string/title_activity_categories" >
</activity>
<activity
android:name=".ViewHelp"
android:label="#string/title_activity_viewhelp" >
</activity>
<activity
android:name=".Settings"
android:label="#string/title_activity_settings" >
</activity>
<activity
android:name=".Contact"
android:label="#string/title_activity_contact" >
</activity>
<activity
android:name=".ContactImageAdapter"
android:label="#string/title_activity_contactimageadapter" >
</activity>
<activity
android:name=".CustomListAdapter"
android:label="#string/title_activity_customlistadapter" >
</activity>
<activity
android:name=".DataBaseHandler"
android:label="#string/title_activity_databasehandler" >
</activity>
<activity
android:name=".DisplayImageActivity"
android:label="#string/title_activity_displayimageactivity" >
</activity>
<activity
android:name=".SQLiteDemoActivity"
android:label="#string/title_activity_sqlitedemoactivity" >
</activity>
<activity
android:name=".CategorySmart"
android:label="#string/title_activity_categorylistsmart" >
</activity>
<activity
android:name=".CategoryAccessory"
android:label="#string/title_activity_categorylistaccessories" >
</activity>
<activity
android:name=".CategoryCasual"
android:label="#string/title_activity_categorylistcasual" >
</activity>
<activity
android:name=".CategoryFood"
android:label="#string/title_activity_categorylistfood" >
</activity>
<activity
android:name=".CategoryFootwear"
android:label="#string/title_activity_categorylistfootwear" >
</activity>
<activity
android:name=".CategoryGoingOut"
android:label="#string/title_activity_categorylistgoingout" >
</activity>
<activity
android:name=".CategorySport"
android:label="#string/title_activity_categorylistsport" >
</activity>
<activity
android:name=".TutorialVideo"
android:label="#string/title_activity_tutorialvideo" >
</activity>
<activity
android:name=".HelpGallery"
android:label="#string/title_activity_cameragalleryhelp" >
</activity>
<activity
android:name=".HelpFavourites"
android:label="#string/title_activity_favouritehelp" >
</activity>
<activity
android:name=".HelpColourPicker"
android:label="#string/title_activity_colourpickerhelp" >
</activity>
<activity
android:name=".HelpCategories"
android:label="#string/title_activity_categorieshelp" >
</activity>
<activity
android:name=".VideoGallery"
android:label="#string/title_activity_gallerytutorialvideo" >
</activity>
<activity
android:name=".VideoFavourites"
android:label="#string/title_activity_favouritestutorialvideo" >
</activity>
<activity
android:name=".VideoColorPicker"
android:label="#string/title_activity_colorpickertutorialvideo" >
</activity>
<activity
android:name=".VideoCategories"
android:label="#string/title_activity_categoriestutorialvideo" >
</activity>
</application>
</manifest>

It is possible the application is not compatible with your device or Android version running on the device itself.

I can not see My android applicatio in google play from Samsung Galaxy s3

I uploaded my android application in google play. After uploading it on google play, I can't see the samsung galaxy s3 in the list of available devices.
I tried to find the answer everywhere but I can't solve it.
I also posted my android menifiest file below:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.eliteplatinum.budgetplanner"
android:versionCode="12"
 android:versionName="2.1" >
<!-- android:installLocation="auto" -->
<uses-sdk android:minSdkVersion="4" />
<supports-screens
android:anyDensity="true"
android:largeScreens="true"
android:normalScreens="true"
android:smallScreens="true" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.VIBRATE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="com.android.vending.BILLING" />
<application
android:icon="#drawable/app_icon"
android:label="#string/app_name" >
<activity
android:label="#string/app_name"
android:name=".Splash"
android:screenOrientation="portrait"
android:theme="#android:style/Theme.NoTitleBar.Fullscreen" >
<intent-filter >
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<receiver
android:name="AlarmReceiver"
android:process=":remote" >
</receiver>
<activity
android:name=".NotificationDialog"
android:theme="#android:style/Theme.Translucent.NoTitleBar" >
</activity>
<activity
android:name=".Login"
android:screenOrientation="portrait"
android:theme="#android:style/Theme.NoTitleBar.Fullscreen" >
</activity>
<activity
android:name=".SignUp"
android:screenOrientation="portrait"
android:theme="#android:style/Theme.NoTitleBar.Fullscreen" >
</activity>
<activity
android:name=".Forecast"
android:screenOrientation="portrait"
android:theme="#android:style/Theme.NoTitleBar.Fullscreen" >
</activity>
<activity
android:name=".Search"
android:screenOrientation="portrait"
android:theme="#android:style/Theme.NoTitleBar.Fullscreen" >
</activity>
<activity
android:name=".Plot"
android:screenOrientation="portrait"
android:theme="#android:style/Theme.NoTitleBar.Fullscreen" >
</activity>
<activity
android:name=".PieChart"
android:screenOrientation="portrait"
android:theme="#android:style/Theme.NoTitleBar.Fullscreen" >
</activity>
<activity
android:name="com.bargraph.BarGraph"
android:screenOrientation="portrait"
android:theme="#android:style/Theme.NoTitleBar.Fullscreen" >
</activity>
<activity
android:name=".BarGraph"
android:screenOrientation="portrait"
android:theme="#android:style/Theme.NoTitleBar.Fullscreen" >
</activity>
<activity
android:name=".Reports"
android:screenOrientation="portrait"
android:theme="#android:style/Theme.NoTitleBar.Fullscreen" >
</activity>
<activity
android:name=".Summary"
android:screenOrientation="portrait"
android:theme="#android:style/Theme.NoTitleBar.Fullscreen" >
</activity>
<activity
android:name=".Calc"
android:screenOrientation="portrait"
android:theme="#android:style/Theme.NoTitleBar.Fullscreen" >
</activity>
<activity
android:name=".Settings"
android:screenOrientation="portrait"
android:theme="#android:style/Theme.NoTitleBar.Fullscreen" >
</activity>
<activity
android:name=".Accounts"
android:screenOrientation="portrait"
android:theme="#android:style/Theme.NoTitleBar.Fullscreen" >
</activity>
<activity
android:name=".AddAccount"
android:screenOrientation="portrait"
android:theme="#android:style/Theme.NoTitleBar.Fullscreen" >
</activity>
<activity
android:name=".EditAccount"
android:screenOrientation="portrait"
android:theme="#android:style/Theme.NoTitleBar.Fullscreen" >
</activity>
<activity
android:name=".FAQs"
android:screenOrientation="portrait"
android:theme="#android:style/Theme.NoTitleBar.Fullscreen" >
</activity>
<activity
android:name=".SyncNRestore"
android:screenOrientation="portrait"
android:theme="#android:style/Theme.NoTitleBar.Fullscreen" >
</activity>
<activity
android:name="com.dignizant.inappbilling.Plans"
android:screenOrientation="portrait"
android:theme="#android:style/Theme.NoTitleBar.Fullscreen" >
</activity>
<activity
android:name=".Categories"
android:screenOrientation="portrait"
android:theme="#android:style/Theme.NoTitleBar.Fullscreen" >
</activity>
<activity
android:name=".AddCategory"
android:screenOrientation="portrait"
android:theme="#android:style/Theme.NoTitleBar.Fullscreen" >
</activity>
<activity
android:name=".EditSubCategories"
android:screenOrientation="portrait"
android:theme="#android:style/Theme.NoTitleBar.Fullscreen" >
</activity>
<activity
android:name="com.wheel.main"
android:screenOrientation="portrait"
android:theme="#android:style/Theme.NoTitleBar.Fullscreen" >
</activity>
<activity
android:name="com.horizontal.wheel.DefaultDateSlider"
android:screenOrientation="portrait"
android:theme="#android:style/Theme.NoTitleBar.Fullscreen" >
</activity>
<service android:name="com.dignizant.inappbilling.BillingService" />
<receiver android:name="com.dignizant.inappbilling.BillingReceiver" >
<intent-filter >
<action android:name="com.android.vending.billing.IN_APP_NOTIFY" />
<action android:name="com.android.vending.billing.RESPONSE_CODE" />
<action android:name="com.android.vending.billing.PURCHASE_STATE_CHANGED" />
</intent-filter>
</receiver>
</application>

Googly play is using Filtering while user are searching app in Google play.
there are so many things to consider while search app in Google play.
Please visit the following link to getting idea.
Filtering App in Google Play
Let me know you have any Query!