Greets,
Made some app on android. I for the life of me can't get it to install on the phone as a stand alone application. It runs fine when I deploy from eclipse but never remains on the device. any idea whats happening?
I put the apk file on a web server, went to the address downloaded and installed but still it wasn't to be found.
I'm lost!
Make sure your application manifest defines an activtity with a category of LAUNCHER. For example:
<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>
Otherwise, the Android apps screen won't pick it up.
Related
I tried to upload a testing app (just blank page) to my phone.
I can see my phone in the list when I press run and there is no new app in my phone and nothing apears there.
why?
thank you.
Firstly, if you app is failing to compile, you will need to check Android Studio for compilation errors. These can be found in the Messages view.
To put your app on a device, your test device will need USB Debugging enabled on it. Please see this answer for more information on how to turn it on should you have missed this step.
If the app is compiling but isn't starting, ensure that you have the following intent-filter within your main activity's definition in your AndroidManifest.xml file.
<activity
android:name=".YourMainActivityName"
android:label="#string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
This intent filter is how the Android OS works out which activity to launch when the app is freshly opened. Without this filter, no activity will start.
I am developing one android app its almost developed and I am able to successfully publish it in my mobile and its working fine, but its not creating a shortcut in home screen after install, can somebody please help me how to create shortcut after install.
This is the best answer I found (https://stackoverflow.com/a/23893035/2507782) because in this we are checking if shortcut already exist and along with this some modifications in manifest files are.
<activity android:name=".ShortCutActivity" android:label="#string/shortcut_label">
<intent-filter>
<action android:naenter code hereme="android.intent.action.CREATE_SHORTCUT" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
and
<uses-permission android:name="com.android.launcher.permission.INSTALL_SHORTCUT" />
I am trying to run the Timer sample google glass app, but when I run the project, it gets installed and then says DONE, however, I don't see anything on the emulator. I know there is no Launcher and so I tried the RUN CONFIGURATION but I don't see any activity in the dropdown when I chose the Launch option. Any thoughts or guides on to do this ?
First of all there is no avd/emulator available for Glass.But if still you are interested converting your mobile phone into glass.Check these link i.e 1,2,3.But no one works completely treating your phone as Glass.
As you have mentioned above that you try to install an app on emulator.The main reason why it is not showing up is that:
Move to AndroidManifest.xml
<activity
android:name=".MainActivity"
android:label="#string/app_name" >
This is the normal code for the main launcher activity of android.This is the main activity which is launched in the emulator/avd
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
While in Glass code you find something like this.There is no launcher in Glass but still you can add.Here you only found out the voice trigger which open your app
<intent-filter>
<action android:name="com.google.android.glass.action.VOICE_TRIGGER" />
</intent-filter>
<meta-data
android:name="com.google.android.glass.VoiceTrigger"
android:resource="#xml/voicetrigger" />
</activity>
How to start an Activity or an IntentService before an application will be uninstalled by the user who has earlier installed the app on there device?
One way to achieve what you want would include the following steps:
(temporarily) rooting the device
converting the app in question into a system app (e.g. using Titanium Backup ★ root, but there are also other apps helping you with this step)
unroot the device again
As the app now resides in read-only space (/system), the user cannot delete it without either rooting the device or flashing a ROM -- which of course could be done, but it's a higher inhibition threshold at least.
There is no such thing as impossible with computers. There is only difficult and highly improbable to happen anytime soon. This is a fact not an opinion. Often someone says "impossible" and there is someone interrupting them saying "Just did it.".
You cannot prefend an user removing an application.
The DELETE intent will be send when the user requests to uninstall.
The PackageManager will receive this intent and start uninstalling the application.
So, without any Android modifications, you cannot add an password.
You have to use Intent filter called "android.intent.action.DELETE" in the AndroidManifest.xml
Like below
<activity
android:name=".Activity"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
<action android:name="android.intent.action.VIEW" />
<action android:name="android.intent.action.DELETE" />
<category android:name="android.intent.category.DEFAULT" />
<data android:scheme="package" />
</intent-filter>
</activity>
This will call the activity.
I understand you can create a service in Android and start it up on boot, which can then be used to get location updates, communicate with a server, etc.
However what I wanted to find out is if this possible to do in AIR. AIR runs on Android, but can it be set a 'service' and start up on boot (sitting in the background)?
Thank you!
Your application will be running inside the AIR runtime which itself is not a service. So the short answer is unfortunately no.
Also the AIR runtime is a whopping 16MB, so you (and more so your users) are better if you write a native Android Service.
Yes, it's possible.
Place this code inside application.xml
<application>
<activity>
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<receiver android:enabled="true" android:name="packeg.and.Class"
android:exported="true"
android:permission="android.permission.WHAT_YOU_NEED"
>
<intent-filter android:priority="999" >
<action android:name="android.provider.some.SERVICE" />
</intent-filter>
</receiver>
<activity android:name="your.package.MainActivity">
</activity>
</application>
Of course you first need to write Java code and later make ANE file.