Develop Reference

How does PACKAGE_REPLACED works in android? [duplicate]

My application that is not on Play Store verify on the web If there are a new version and download and start it. After the installation I would like to restart the application and I would use a BroadcastRecevier with ACTION_PACKAGE_REPLACED. This is the code :
Broadcast:
public void onReceive(Context context, Intent intent) {
if(intent.getAction().equals(Intent.ACTION_PACKAGE_REPLACED)){
ApplicationInfo app = new ApplicationInfo();
if(app.packageName.equals("it.android.downloadapk")){
Intent LaunchIntent = context.getPackageManager().getLaunchIntentForPackage(app.packageName);
context.startActivity(LaunchIntent);
}
}
}
Manifest:
<receiver android:name="it.android.downloadapk.Broadcast">
<intent-filter>
<action android:name="android.intent.action.ACTION_PACKAGE_REPLACED"></action>
<data android:scheme="package" android:path="it.android.downloadapk" />
</intent-filter>
</receiver>
The problem is that when I install new apk, the Broadcast appears not to start, why ?

see this:
How to know my Android application has been upgraded in order to reset an alarm?
correct fix is that you use the wrong string in the manifest:
http://developer.android.com/reference/android/content/Intent.html#ACTION_PACKAGE_REPLACED
it should be "android.intent.action.PACKAGE_REPLACED" instead.
ok , i see that what i've written is still not enough to try it out, so i will make an exception and publish a whole project just to show that it works:
app code is in a package called "com.broadcast_receiver_test" .
don't forget to run it before testing , or else it won't work on some android versions (i think API 11+) .
manifest:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.broadcast_receiver_test" android:versionCode="1"
android:versionName="1.0">
<uses-sdk android:minSdkVersion="3" />
<application android:icon="#drawable/ic_launcher"
android:label="#string/app_name">
<activity android:name=".BroadcastReceiverTestActivity"
android:label="#string/app_name">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<receiver android:name=".MyBroadcastReceiver">
<intent-filter>
<action android:name="android.intent.action.PACKAGE_REPLACED"/>
<data android:scheme="package" />
</intent-filter>
<intent-filter>
<action android:name="android.intent.action.PACKAGE_REMOVED"/>
<data android:scheme="package" />
</intent-filter>
<intent-filter>
<action android:name="android.intent.action.PACKAGE_ADDED"/>
<data android:scheme="package" />
</intent-filter>
</receiver>
</application>
</manifest>
MyBroadcastReceiver.java:
public class MyBroadcastReceiver extends BroadcastReceiver
{
#Override
public void onReceive(final Context context,final Intent intent)
{
final String msg="intent:"+intent+" action:"+intent.getAction();
Log.d("DEBUG",msg);
Toast.makeText(context,msg,Toast.LENGTH_SHORT).show();
}
}
please just run it and see that it works perfectly .
EDIT: if your app is for API12 and above, and only wish to handle the case of updating of your app, you can use this intent alone:
http://developer.android.com/reference/android/content/Intent.html#ACTION_MY_PACKAGE_REPLACED

I put the following receiver in the AndroidManifest.xml
<receiver android:name=".StartupReceiver">
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED"/>
</intent-filter>
<intent-filter>
<action android:name="android.intent.action.MY_PACKAGE_REPLACED"/>
</intent-filter>
</receiver>
So my app can be launched on update as well as device reboot. Ofcourse as everyone has mentioned that you need API 12+ for MY_PACKAGE_REPLACED.

After hours and hours of searching how to restart your app after it was updated, I finally find why it won't restart.
The app must NOT be launched by Android Studio or other IDE. If I manually install app with its apk and launch it from the current Android device, the app can recognize if there was an update of my application and it restarts correctly.
My user case is a custom launcher that can update by itself launching a PackageInstaller.Session without going to Google Play Store
Here it's the code
Manifest:
<receiver android:name="UpdateReceiver" >
<intent-filter>
<action android:name="android.intent.action.MY_PACKAGE_REPLACED"/>
</intent-filter>
</receiver>
UpdateReceiver (Kotlin code):
class UpdateReceiver: BroadcastReceiver() {
companion object {
private val TAG = UpdateReceiver::class.java.simpleName
}
override fun onReceive(context: Context?, intent: Intent?) {
Log.d(TAG, "onReceive ${intent?.action ?: "unknown action"}")
if (intent?.action == Intent.ACTION_MY_PACKAGE_REPLACED) {
//MainActivity = Your first activity
val yourIntent = Intent(context, MainActivity::class.java)
yourIntent.flags = Intent.FLAG_ACTIVITY_NEW_TASK
context?.startActivity(yourIntent)
}
}
}

After two days of struggle and experimentation, I found out the reason.
It turned out I need to carefully read the official documentation.
As said here: https://developer.android.com/reference/android/content/Intent#ACTION_MY_PACKAGE_REPLACED
It turned out the key phrase is:
It does not contain any additional data
those. if you changed the manifest,
then the application will not restart after updating
you are welcome

For anyone trying all the other answers without success, I recommend you restarting the app.
I noticed the app was successfully updated, but it wasn't being launched even though I tried starting the activity in many ways.
I used https://github.com/JakeWharton/ProcessPhoenix in the BroadcastReceiver, so basically in the update you're downloading, add ProcessPhoenix.triggerRebirth(context); in your BroadcastReceiver, or restart the app somehow in there.

Is service is started automatically

I am new to android .Is service in android is started automatically when the mobile is switch on??if yes that's great.if no can any one explain how can i start the particular service ??

No, service is not started automatically after device boot. but you can register an android.intent.action.BOOT_COMPLETED for Starting Service when Device boot complete as:
AndroidManifest.xml :
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED">
</uses-permission>
<receiver android:name=".BootReceiver" android:label="#string/app_name">
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</receiver>
BootReceiver.java :
public class BootReceiver extends IntentReceiver
{
static final String ACTION = "android.intent.action.BOOT_COMPLETED";
public void onReceiveIntent(Context context, Intent intent)
{
if (intent.getAction().equals(ACTION))
{
context.startService(new Intent(context,YourService.class));
}
}
}

In user based application service does not start automatically
you need to add below code
<receiver android:name="com.wallpaper.StartReceiver" xmlns:android="#unknown">
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED" />
</intent-filter>
</receiver>

you better read something on Broadcast receiver from here
http://www.vogella.com/articles/AndroidBroadcastReceiver/article.html
A broadcast receiver is an Android component which allows to register for system or application events(in your case the ACTION_BOOT_COMPLETED)
As soon as the Android loads up it broadcast a message that the boot is completed and all the applications that are registered to receivce that event will receive it and you can do your stuff...
It can be done using this code below by adding it to the manifest file
<receiver android:name="some_pagacakge_name" >
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED" />
</intent-filter>
</receiver>
here are some links for it
http://www.grokkingandroid.com/android-tutorial-broadcastreceiver/

you can start your service startService(intent)
To run it on Phone restart
add following permission in manifest file
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
and declared a Broadcast Receiver like
<receiver android:name=".BootReceiver"
android:label="BootReceiver">
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED"></action>
</intent-filter>
</receiver>
and then
public class BootReceiver extends BroadcastReceiver {
private static final String TAG="BootReceiver";
#Override public void onReceive(Context context,Intent intent){
try{
context.startService(new Intent(context,yourServiceName.class));
Log.i(TAG,"Starting Service yourServiceName");
}catch(Exception e){
Log.e(TAG,e.toString());
}
}
}

Its depends on your requirement what kind of service you want to start and when you want to start that service. if you want to start particular service on startup then you have to register the reciever as Devangi Desai has mentioned and then you need to issue the startService() method.
public class Receiver extends BroadcastReceiver {
#Override
public void onReceive(Context context, Intent intent) {
String intentAction = intent.getAction();
if (intentAction.equals(Intent.ACTION_BOOT_COMPLETED))
context.startService(new Intent(context,
ConnectionService.class));
}
}
Here ConnectionService.class is class which extends a service and has the implementation of service.

They are not started automatically unless you explicitly define in the manifest that they should be started at boot time. To do this, you need to add the action
<action android:name="android.intent.action.BOOT_COMPLETED" />
in your manifest file for your service.
example:
<receiver android:name="MyStartupIntentReceiver" >
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED" />
<category android:name="android.intent.category.HOME" />
</intent-filter>
</receiver>
</receiver>
Please read this official guide for more detailed information about services:
https://developer.android.com/guide/components/services.html

K-9 Mail's REFRESH_OBSERVER?

Does anyone know how K9 Mail's REFRESH_OBSERVER should work? I tried the following as test, but I'm not getting a broadcast when I read/unread/delete/receive:
Manifest:
<receiver android:name=".Monitor">
<intent-filter>
<action android:name="com.fsck.k9.intent.action.REFRESH_OBSERVER"/>
</intent-filter>
</receiver>
...
</application>
<uses-permission android:name="com.fsck.k9.permission.READ_MESSAGES" />
I also tried scheme=email with REFRESH_OBSERVER, but it didn't work.
Monitor.java:
public class Monitor extends BroadcastReceiver {
#Override
public void onReceive(Context context, Intent intent) {
Log.d("test", "onReceive()");
}
}
On the other hand, the following works:
<intent-filter>
<action android:name="com.fsck.k9.intent.action.EMAIL_RECEIVED" />
<action android:name="com.fsck.k9.intent.action.EMAIL_DELETED" />
<data android:scheme="email" />
</intent-filter>
But I would really like to get a broadcast when messages are read (for counting unread messages) and these two are insufficient for that.
Thanks!

REFRESH_OBSERVER is used only in src/com/fsck/k9/K9.java as part of the MessagingListener method searchStats(), to "let observers know a fetch occurred". It's only called when using the local search feature. Feel free to submit a patch to us if you wish to add some functionality to K-9. See https://github.com/k9mail/k-9/wiki

Android: receiving intent sent by system ACTION_PACKAGE_RESTARTED

I am new to android. I get completely stuck in using ACTION_PACKAGE_RESTARTED in my application
I have removed pacakge from my emulator, also added using adb install but get nothing. Start an app. close that one and again start that app. nothing seems work for me. There is no log in logcat.
Is there anything that i'm missing? Please help
public class RestartReceiver extends BroadcastReceiver {
#Override
public void onReceive(Context context, Intent intent) {
String action= intent.getAction();
Log.i("D", "Inside receiver");
}
And here is the manifest file
<application android:icon="#drawable/icon" android:label="#string/app_name">
<receiver android:name=".ReceiverTest">
<intent-filter>
<action android:name="android.intent.action.PACKAGE_REMOVED" />
<action android:name="android.intent.action.PACKAGE_ADDED" />
<action android:name="android.intent.action.ACTION_PACKAGE_RESTARTED" />
</intent-filter>
</receiver>
</application>

the value specified in the intent filter is incorrect..actual value is
<action android:name="android.intent.action.PACKAGE_RESTARTED" />
and this broadcast can be received for other packages only. Restarted application/package doesn't receive this broadcast.

You should add a data specification to the intent-filter:
<data android:scheme="package" />

Autostart application while phone boots up

How can I make my application to get started while my phone boots up itself.

You need to use a BroadcastReceiver with android.intent.action.BOOT_COMPLETED intent.
Add following to your manifest file:
<receiver android:name="MyApp_Receiver">
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</receiver>
MyApp_Receiver class implementing BoradcastReciever. Implement the onReceive() method and start your favorite activity from your app.
public void onReceive(Context context, Intent intent) {
// make sure you receive "BOOT_COMPLETED"
if ((intent.getAction() != null) && (intent.getAction().equals("android.intent.action.BOOT_COMPLETED")))
{
// Start the service or activity
}
}