Develop Reference

Know when an app has been programatically deleted

I uninstall an app programatically in Android, using an Intent, like you see below:
Uri packageURI = Uri.parse("package:"+packageName);
Intent uninstallIntent = new Intent(Intent.ACTION_DELETE, packageURI);
startActivity(uninstallIntent);
Which redirects to a prompt that asks if you want to uninstall the app.
Usually after that you can see a toast in the bottom of the screen saying the app was uninstalled. But I want to be able to be notified so I can remove an uninstall button in a view.
How can I know in the code when the uninstall of the package has been completed? Or if an error occurred? Or even, if user clicked "ok" to uninstall or "cancel" if he changed his mind, how can I know?
Is it possible to know any of this? Is there an alternative way to uninstall a package (without being a system app) and be notified?
Thank you for reading. Lemme know if you need any more information.

Well I ended up finding a solution, when a package is removed there is an intent that can be picked up by a receiver.
In my AndroidManifest
<application
<!--...-->
<receiver
android:name=".UninstalledBroadcastReceiver"
android:enabled="true">
<intent-filter>
<action android:name="android.intent.action.PACKAGE_REMOVED"/>
<data android:scheme="package"/>
</intent-filter>
</receiver>
</application>
Create a UninstalledBroadcastReceiver class that extends a normal BroadcastReceiver
public class UninstalledBroadcastReceiver extends BroadcastReceiver {
#Override
public void onReceive(Context context, Intent intent) {
// handle the intent here
}
}
You can check for instance if your package name of the app that was installed matches your own and do something with it. In my case, I put some static fields in the UninstalledBroadcastReceiver, including an interface so that I could perform some callbacks. Don't think you can pass fields in the constructor, since the object is created when the intent is received.

How to override the behavior of opening Appboy web activity in deeplink In App messge

I am facing a problem in override the On Click Behavior in Appboy deeplink
Please find the following data
1- Register Appboy in BaseActivity which is the parent activity for all Application Activities
#Override
protected void onResume() {
AppboyInAppMessageManager.getInstance().registerInAppMessageManager(this);
Appboy.getInstance(this).requestInAppMessageRefresh();
}
#Override
protected void onPause() {
AppboyInAppMessageManager.getInstance().unregisterInAppMessageManager(this);
}
2- Add the receivers in Manifest File as following
<receiver android:name="com.forsale.forsale.appboy.AppboyGcmReceiver"
android:permission="com.google.android.c2dm.permission.SEND" >
<intent-filter>
<action android:name="com.google.android.c2dm.intent.RECEIVE" />
<action android:name="com.google.android.c2dm.intent.REGISTRATION" />
<category android:name="com.forsale.forsale" />
</intent-filter>
</receiver>
<receiver
android:name="com.forsale.forsale.appboy.AppBoyOpenReceiver"
android:exported="false" >
<intent-filter>
<action android:name="com.forsale.forsale.intent.APPBOY_PUSH_RECEIVED" />
<action android:name="com.forsale.forsale.intent.APPBOY_NOTIFICATION_OPENED" />
</intent-filter>
</receiver>
Know I can send in app message using app boy dashboard, and receive the message, but when I click the message it open appboy web activity with the link
I need to override this behaviour to be able to get the link that I sent in In app message and parse some parameters from it and direct the use to an activity inside my app
I have tried the following
remove default app boy web activity from manifest file /// the app crash
implement the IInAppMessageManagerListener /// the app stop receiving any messages
Please note that the application call the onReceive method when trying to register appboy and print the log (action = REGISTRATION, RegId = "..."), but it never lo any other actions like RECEIVE, or OPEN
public void onReceive(Context context, Intent intent) {
AppboyLogger.i("AMIRA", String.format("Amira %s", intent.toString()));
String action = intent.getAction();
AppboyLogger.i("AMIRA", String.format("Amira %s", action));
Bundle bundle = intent.getExtras();
for (String key : bundle.keySet()) {
Object value = bundle.get(key);
AppboyLogger.i("AMIRA", String.format("Amira %s", key + ":" + value.toString()));
}
}

The root of the problem is that we differentiate deep links and http links based on schema of the URI, so http (and some other schemes) links are detected as web links, and other formats are seen as deep links (see https://github.com/Appboy/appboy-android-sdk/blob/master/android-sdk-ui/src/com/appboy/ui/actions/ActionFactory.java).
We’ll consider how to instrument things for the use case you have, but in the meantime there’s a couple of ways you could solve the issue:
1) Create a deep link that is not also an http link. Everything should work if your link instead looks like, for example, forsale://mylink?a=b&2=3....etc.
2) Set a custom in-app message manager listener: https://documentation.appboy.com/Android/#in-app-message-customization. You can see an example of how we do this in our Droidboy sample app. In your case, you’d want to return defaults for everything but onInAppMessageButtonClicked and onInAppMessageClicked where you’d want to handle the link yourself if it’s of the format of your deep link. Your ticket indicates you’ve tried this, but I’d suggest starting with "the default one we create in the AppboyInAppMessageManager.java (#L608) in the Android SDK - and then just modifying the *clicked methods.
3) Download our UI code and modify the source. You could optionally download the Appboy Android SDK and modify the ActionFactory to handle your deep link in the way you want. Though, at the point you are going to do something like this, solution #2 is likely going to be a nicer one to implement and maintain.
Please let us know if one of these solutions works for you and if you have any other comments/questions.
Thanks,
Waciuma

How to lock uninstalling an application with a password? [duplicate]

First of all, I have researched a lot about my issue, but I could not find a proper solution so I am posting my query here. Hope to get a better solution to the issue:
I have a requirement where I need to ask for password to the user before user deletes my app from settings or from any other application like MyAppSharer. I have found one solution where I can successfully be able to call my activity when user clicks on Uninstall button. I have applied trick here, and calling service. In service, I run timer which runs every 1 second and in that one second, it checks for top most activity of running task. This is running perfectly as per expected.
Now, my issue is, this activity apppears on each of application user tries to uninstall. I need that the activity which I call, should only appear for my application when user tries to uninstall my application.
Here is my code:
public static final String PACKAGE_INSTALLER = "com.android.packageinstaller";
public static final String PACKAGE_INSTALLER_UNINSTALL_ACTIVITY = "com.android.packageinstaller.UninstallerActivity";
alarmTimer.scheduleAtFixedRate(new TimerTask() {
public void run() {
mActivityManager = (ActivityManager) getSystemService(Context.ACTIVITY_SERVICE);;
ComponentName topActivity = mActivityManager.getRunningTasks(1).get(0).topActivity;
final String packageName = topActivity.getPackageName();
String className = topActivity.getClassName();
Log.v(TAG, "packageName:" + packageName);
Log.v(TAG, "className:" + className);
if (PACKAGE_INSTALLER.equals(packageName)
&& PACKAGE_INSTALLER_UNINSTALL_ACTIVITY.equals(className)) {
//Here I need to apply one condition where package name received to be matched with my package name. But I am not sure how to fetch package name of selected application for uninstalling
//To Cancel Existing UninstallerActivity and redirect user to home.
Intent homeIntent = new Intent();
homeIntent.setAction(Intent.ACTION_MAIN);
homeIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK
| Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_SINGLE_TOP);
homeIntent.addCategory(Intent.CATEGORY_HOME);
startActivity(homeIntent);
//To open my activity
Intent loginActivity = new Intent(UninstallService.this, Act_Login.class);
loginActivity.putExtra(Constants.KEY_IS_FROM_SERVICE, true);
loginActivity.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(loginActivity);
}
}
}, 0, 1000);

you should try something like the following :
1st - declare your broadcast recevier in the Manifest file , that will listen to QUERY_PACKAGE_RESTART :
<receiver android:name=".UninstallReceiver">
<intent-filter android:priority="999999">
<action android:name="android.intent.action.QUERY_PACKAGE_RESTART" />
<data android:scheme="package" />
</intent-filter>
</receiver>
2nd - your UnunstallIntentReceiver java class like the following :
public class UninstallReceiver extends BroadcastReceiver{
#Override
public void onReceive(Context context, Intent intent) {
// fetching package names from extras
String[] packageNames = intent.getStringArrayExtra("android.intent.extra.PACKAGES");
if(packageNames!=null){
for(String packageName: packageNames){
if(packageName!=null && packageName.equals("application_package")){
// start your activity here and ask the user for the password
}
}
}
}
}
and please give me some feedback
Hope That Helps.

If this is a corporate requirement (if you want to block a regular user from uninstalling your app, no chance, thanks Google for protecting us from bad devs), you should create a device administrator application. This way, although the user still can delete the app, it's one extra step if you want to prevent accidental erasing.
Before deleting your app, if it's enabled as device admin, the user must first disable the app as administrator, and the app receives this broadcast.
In your XML, put
<activity android:name=".app.DeviceAdminSample"
android:label="#string/activity_sample_device_admin">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.SAMPLE_CODE" />
</intent-filter>
</activity>
<receiver android:name=".app.DeviceAdminSample$DeviceAdminSampleReceiver"
android:label="#string/sample_device_admin"
android:description="#string/sample_device_admin_description"
android:permission="android.permission.BIND_DEVICE_ADMIN">
<meta-data android:name="android.app.device_admin"
android:resource="#xml/device_admin_sample" />
<intent-filter>
<action android:name="android.app.action.DEVICE_ADMIN_ENABLED" />
</intent-filter>
</receiver>
In the receiver, you have at least two methods worth noticing:
#Override
public CharSequence onDisableRequested(Context context, Intent intent) {
…
}
#Override
public void onDisabled(Context context, Intent intent) {
…
}
This way you know the user is potentially going to erase your app.
Complete guide for device administration is at https://developer.android.com/guide/topics/admin/device-admin.html

If you have root permissions make your app system (remove your apk-file from /data to /system directories). Then reboot device. After reboot your app is not available to delete by user (not superuser).

The only way i see, is to provide your own uninstaller as part of your app (= an activity that lists all apps and allows to uninstall them). Your service could then check if your app was the one that started the packageinstaller and if not redirect the user.
It is not possible (at least on the Android 4.4 I tested with) to grab the uninstaller activity data without root or being a system app. This is because the uninstaller is not called as an independent task, but as an activity on the stack of the starting task (which is the Settings app when uninstalling from settings, etc). You can only see the Task details of the calling task.
However there might be some really dirty possibility left, that i didn't test to the end: You could register the hidden interface IThumbnailReceiver [1] with the hidden three argument version of ActivityManager.getRunningTasks [2]. It seems like only the GET_TASKS permission is needed to grab a thumbnail (see [3]). It should be possible to find out which app is going to be removed from the app thumbnail... - But as this solution uses hidden APIs, there is no guarantee that it will work with older/newer/vendored Android versions.
https://github.com/omnirom/android_frameworks_base/blob/android-4.4/core/java/android/app/IThumbnailReceiver.aidl
https://github.com/omnirom/android_frameworks_base/blob/android-4.4/core/java/android/app/ActivityManager.java#L766
https://github.com/omnirom/android_frameworks_base/blob/android-4.4/services/java/com/android/server/am/ActivityManagerService.java#L6725

Android lock screen : activity started first when mobile on

I develop one apps mobile number lock, i want whenever mobile on,or restart or switch on ,or on from the top/left/right button placed on mobile in short whenever mobile screen on my lock activity call, i have no idea to how to call activity at time of mobile on please any one give some related example to start activity at first when mobile on. so my lock dispay to user and then enter number password and lock open ...thanks in advance..

Following is working for me :
enter code here :
public class BootReciever extends BroadcastReceiver {
#Override
public void onReceive(Context context, Intent intent) {
if (intent.getAction() != null) {
if (intent.getAction().equals(Intent.ACTION_USER_PRESENT)) {
Intent s = new Intent(context,ViewPagerMainActivity.class);
s.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startActivity(s);
}
}
}
}
and in menifist file add follwing:
enter code here :
<receiver android:name=".BootReciever">
<intent-filter android:enabled="true" android:exported="true">
<action android:name="android.intent.action.USER_PRESENT" />
</intent-filter>
</receiver>

There are multiple ways, to achieve this. One way is you can go through Broadcasting a message for your app, after the boot of your mobile. Try reading:
http://developer.android.com/reference/android/content/BroadcastReceiver.html
Also have look at this thread, this will solve your problem.
How to launch activity on BroadcastReceiver when boot complete on Android

how can I pass data to android Market using the new scheme on chrome?

so I noticed according to here, you can put a link on the site and have user to click on it. If user had the app installed, app will be launched. If the app wasn't installed, Google Play Store will be launched and search for the particular package, which is a great feature!! but from my understanding, this will loose the ability to pass referral string to play store.
According to here, you can have a link like market://details?id=your.package.name&referrer=YourReferrerString. If a broadcast receiver is set in the app, you'll be able to catch the referrer string, but how can I achieve the same goal if I used the first method which is from here?
here is the only thread I can find that talks about the new (?) feature on Chrome, but it didn't seem to answer my question.
Thanks!!

Turns out to be quite simple. The default referrer from Chrome is 'com.android.chrome'. Override this by putting &referrer= after package in your intent:// URI, for example:
var g_intent = "intent://" + code +
"/#Intent;scheme=yourscheme;package=com.your.app&referrer=code%3D" +
code + ";launchFlags=268435456;end";
Here's a gist that explains the javascript part of the solution more fully and also falls back to a normal market link if the intent:// scheme doesn't work: https://gist.github.com/akent/dec1b4b7383436b4623e
And in your Java code:
public static class InstallReferrerReceiver extends BroadcastReceiver {
#Override
public void onReceive(Context context, Intent intent) {
String referrer = intent.getStringExtra("referrer");
// Do things with your referrer here
}
}
And in AndroidManifest.xml:
<receiver android:name=".YourActivity$InstallReferrerReceiver" android:exported="true">
<intent-filter>
<action android:name="com.android.vending.INSTALL_REFERRER" />
</intent-filter>
</receiver>