Develop Reference

My app gets stopped unfortunately when I use Sugar ORM

Using these configurations I did add sugar orm to my project, but my application stopped unfortunately by this error :
FATAL EXCEPTION: main
Process: gigacycle.geoaudiotag, PID: 22760
java.lang.RuntimeException: Unable to instantiate application com.orm.SugarApp: java.lang.ClassNotFoundException: Didn't find class "com.orm.SugarApp" on path: DexPathList[[zip file "/data/app/gigacycle.geoaudiotag-1/base.apk"],nativeLibraryDirectories=[/data/app/gigacycle.geoaudiotag-1/lib/arm, /vendor/lib, /system/lib]]
at android.app.LoadedApk.makeApplication(LoadedApk.java:676)
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:6289)
at android.app.ActivityThread.access$1800(ActivityThread.java:221)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1860)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:158)
at android.app.ActivityThread.main(ActivityThread.java:7224)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1230)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1120)
Caused by: java.lang.ClassNotFoundException: Didn't find class "com.orm.SugarApp" on path: DexPathList[[zip file "/data/app/gigacycle.geoaudiotag-1/base.apk"],nativeLibraryDirectories=[/data/app/gigacycle.geoaudiotag-1/lib/arm, /vendor/lib, /system/lib]]
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
at java.lang.ClassLoader.loadClass(ClassLoader.java:469)
at android.app.Instrumentation.newApplication(Instrumentation.java:1004)
at android.app.LoadedApk.makeApplication(LoadedApk.java:666)
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:6289) 
at android.app.ActivityThread.access$1800(ActivityThread.java:221) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1860) 
at android.os.Handler.dispatchMessage(Handler.java:102) 
at android.os.Looper.loop(Looper.java:158) 
at android.app.ActivityThread.main(ActivityThread.java:7224) 
at java.lang.reflect.Method.invoke(Native Method) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1230) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1120) 
Suppressed: java.lang.ClassNotFoundException: com.orm.SugarApp
at java.lang.Class.classForName(Native Method)
at java.lang.BootClassLoader.findClass(ClassLoader.java:781)
at java.lang.BootClassLoader.loadClass(ClassLoader.java:841)
at java.lang.ClassLoader.loadClass(ClassLoader.java:504)
... 12 more
Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack trace available
This is my Manifest :
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="gigacycle.geoaudiotag">
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:roundIcon="#mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="#style/AppTheme"
android:name="com.orm.SugarApp">
<meta-data
android:name="com.google.android.geo.API_KEY"
android:value="#string/google_maps_key" />
<meta-data android:name="DATABASE" android:value="geoaudiotagdb.db" />
<meta-data android:name="VERSION" android:value="2" />
<meta-data android:name="QUERY_LOG" android:value="true" />
<meta-data android:name="DOMAIN_PACKAGE_NAME" android:value="gigacycle.geoaudiotag"/>
<activity
android:name="gigacycle.geoaudiotag.MainActivity"
android:label="#string/app_name"
android:theme="#style/AppTheme.NoActionBar">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
also this line is compiling successfully!
compile 'com.github.satyan:sugar:1.4'
I don't know why this fatal error occurred? where is my mistake?

Sync gradle and build.
Just download the package does not generate com.orm.SugarApp. Gradle sync will generate the class and before syncing, it appears as lint error in AndroidManifest.
Unfortunately this cannot be captured as compiler error and results in runtime error as you get.

COSU: Cannot find Activity any more after pin and then restart

I'm developing an App that can be Screen Pinned aka Corporate Owned Single Use aka Lock Task Mode.
If I pin it and then:
I close it (killing it) and then I launch it again
or after some code modification in android studio and then perform Run
restart after pin and unpin
I get the following error:
[homtom-ht3_pro-0123456789ABCDEF]: E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.xx.yyy, PID: 7928
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.xx.yyy/com.xx.yyy.activities.LauncherActivity}: android.content.ActivityNotFoundException: Unable to find explicit activity class {com.xx.yyy/com.xx.yy.activities.StartActivity}; have you declared this activity in your AndroidManifest.xml?
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2534)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2614)
at android.app.ActivityThread.access$800(ActivityThread.java:178)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1470)
at android.os.Handler.dispatchMessage(Handler.java:111)
at android.os.Looper.loop(Looper.java:194)
at android.app.ActivityThread.main(ActivityThread.java:5643)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:960)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:755)
Caused by: android.content.ActivityNotFoundException: Unable to find explicit activity class {com.xx.yyy/com.xx.yyy.activities.StartActivity}; have you declared this activity in your AndroidManifest.xml?
at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1788)
at android.app.Instrumentation.execStartActivity(Instrumentation.java:1512)
at android.app.Activity.startActivityForResult(Activity.java:3809)
at android.support.v4.app.BaseFragmentActivityJB.startActivityForResult(BaseFragmentActivityJB.java:50)
at android.support.v4.app.FragmentActivity.startActivityForResult(FragmentActivity.java:79)
at android.app.Activity.startActivityForResult(Activity.java:3760)
at android.support.v4.app.FragmentActivity.startActivityForResult(FragmentActivity.java:859)
at android.app.Activity.startActivity(Activity.java:4090)
at android.app.Activity.startActivity(Activity.java:4058)
at com.xx.yyy.activities.LauncherActivity.onCreate(LauncherActivity.java:16)
at android.app.Activity.performCreate(Activity.java:6099)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1112)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2481)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2614) 
at android.app.ActivityThread.access$800(ActivityThread.java:178) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1470) 
at android.os.Handler.dispatchMessage(Handler.java:111) 
at android.os.Looper.loop(Looper.java:194) 
at android.app.ActivityThread.main(ActivityThread.java:5643) 
at java.lang.reflect.Method.invoke(Native Method) 
at java.lang.reflect.Method.invoke(Method.java:372) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:960) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:755) 
This is my Manifest:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.xx.yyy">
<application
android:allowBackup="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:supportsRtl="true"
android:theme="#style/AppTheme">
<receiver
android:name=".receivers.DeviceAdminReceiver"
android:description="#string/app_name"
android:label="#string/app_name"
android:permission="android.permission.BIND_DEVICE_ADMIN">
<meta-data
android:name="android.app.device_admin"
android:resource="#xml/device_admin_receiver" />
<intent-filter>
<action android:name="android.intent.action.DEVICE_ADMIN_ENABLED" />
<action android:name="android.intent.action.PROFILE_PROVISIONING_COMPLETE" />
<action android:name="android.intent.action.BOOT_COMPLETED" />
</intent-filter>
</receiver>
<activity android:name=".activities.LauncherActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name=".activities.StartActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.HOME" />
<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>
</application>
</manifest>
If I don't ever pin the app I can restart/upgrade&run it many times I want.
The nice thing is that is not even possible to uninstall the app because it has been configured as Device Owner, and so, it cannot be uninstalled unless a factory reset.
I dont understand how is possible that my activity disappears after an app restart. Can be something related to the intent category or action?
If anyone else encountered this behavior can tell me I will submit an issue to the bug report site.
Thanks.
EDIT 18/3
I think maybe this is happening because at a certain point, I kill the home category activity that in my case is the missing StartActivity in question, and it is not restarted even if I restart the app.

Found the solution in my COSU disable pinning implementation, I was doing:
PackageManager mPackageManager = getApplicationContext().getPackageManager();;
mPackageManager.setComponentEnabledSetting(
new ComponentName(getApplicationContext(), StartActivity.class),
PackageManager.COMPONENT_ENABLED_STATE_DISABLED,
PackageManager.DONT_KILL_APP);
to disable the pinning on device boot, but this actually disable the specified component.
The correct implementation would be:
PackageManager mPackageManager = getApplicationContext().getPackageManager();;
mPackageManager.setComponentEnabledSetting(
new ComponentName(getApplicationContext(), StartActivity.class),
PackageManager.COMPONENT_ENABLED_STATE_DEFAULT,
PackageManager.DONT_KILL_APP);

Using Broadcast Receiver with Direct Boot in Android Nougat (7.0)

I am working with the new DirectBoot feature in Android 7.0 and I am trying to determine when the phone is still locked after a restart and in Direct Boot mode. To do this, I have implemented a BroadcastReceiver which I defined in the Manifest.
My understanding is that when a phone is restarted, it sends out an ACTION_LOCKED_BOOT_COMPLETED broadcast when it finishes booting but prior to the user entering their PIN. When the PIN is entered and phone becomes unlocked, an ACTION_BOOT_COMPLETED broadcast is sent. My Receiver works fine if I define its intent-filter to be ACTION_BOOT_COMPLETED, but as soon as I add LOCKED_BOOT_COMPLETED, I get Fatal error messages like this upon restarting the phone saying it couldn't instantiate my receiver:
01-06 07:25:30.917 3872-3872/? E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.nougatencryptiontest, PID: 3872
java.lang.RuntimeException: Unable to instantiate receiver com.example.nougatencryptiontest.MyReceiver: java.lang.ClassNotFoundException: Didn't find class "com.example.nougatencryptiontest.MyReceiver" on path: DexPathList[[zip file "/data/app/com.example.nougatencryptiontest-1/base.apk"],nativeLibraryDirectories=[/data/app/com.example.nougatencryptiontest-1/lib/arm64, /system/lib64, /vendor/lib64]]
at android.app.ActivityThread.handleReceiver(ActivityThread.java:3021)
at android.app.ActivityThread.-wrap18(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1561)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:6119)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:886)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:776)
Caused by: java.lang.ClassNotFoundException: Didn't find class "com.example.nougatencryptiontest.MyReceiver" on path: DexPathList[[zip file "/data/app/com.example.nougatencryptiontest-1/base.apk"],nativeLibraryDirectories=[/data/app/com.example.nougatencryptiontest-1/lib/arm64, /system/lib64, /vendor/lib64]]
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
at java.lang.ClassLoader.loadClass(ClassLoader.java:380)
at java.lang.ClassLoader.loadClass(ClassLoader.java:312)
at android.app.ActivityThread.handleReceiver(ActivityThread.java:3016)
at android.app.ActivityThread.-wrap18(ActivityThread.java) 
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1561) 
at android.os.Handler.dispatchMessage(Handler.java:102) 
at android.os.Looper.loop(Looper.java:154) 
at android.app.ActivityThread.main(ActivityThread.java:6119) 
at java.lang.reflect.Method.invoke(Native Method) 
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:886) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:776) 
I'm not sure why this DexPathList issue occurs only when I change my Receiver's intent-filter from BOOT_COMPLETED to LOCKED_BOOT_COMPLETED. Below is my Manifest that does not work (however, if I change intent-filter to just be BOOT_COMPLETED, application doesn't crash and receiver works perfectly fine!):
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.nougatencryptiontest">
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"/>
<application
android:allowBackup="true"
android:directBootAware="true"
android:icon="#mipmap/ic_launcher"
android:label="#string/app_name"
android:supportsRtl="true"
android:theme="#style/AppTheme">
<receiver android:name=".MyReceiver"
android:exported="true"
android:directBootAware="true">
<!-- Listening the BOOT_COMPLETED action for legacy pre-N devices -->
<intent-filter>
<action android:name="android.intent.action.LOCKED_BOOT_COMPLETED" />
</intent-filter>
</receiver>
<activity android:name=".MainActivity"
android:directBootAware="true">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
Any advice or pointers would be greatly appreciated.

AltBeacon issue after adding Parse server push notification

My application was working ok, but after i added the push notifications from parse server, i started getting an error when the app is launched (see message below), while the app open and work ok, when i close the app the same is not doing the background search and notification.
09-30 17:22:12.006 10338-10349/br.com.inconnet.inbeacon E/Parcel: Class not found when unmarshalling: org.altbeacon.beacon.service.StartRMData
java.lang.ClassNotFoundException: org.altbeacon.beacon.service.StartRMData
at java.lang.Class.classForName(Native Method)
at java.lang.Class.forName(Class.java:324)
at android.os.Parcel.readParcelableCreator(Parcel.java:2404)
at android.os.Parcel.readParcelable(Parcel.java:2358)
at android.os.Message.readFromParcel(Message.java:571)
at android.os.Message.-wrap0(Message.java)
at android.os.Message$1.createFromParcel(Message.java:527)
at android.os.Message$1.createFromParcel(Message.java:525)
at android.os.IMessenger$Stub.onTransact(IMessenger.java:51)
at android.os.Binder.execTransact(Binder.java:453)
Caused by: java.lang.ClassNotFoundException: org.altbeacon.beacon.service.StartRMData
at java.lang.Class.classForName(Native Method)
at java.lang.BootClassLoader.findClass(ClassLoader.java:781)
at java.lang.BootClassLoader.loadClass(ClassLoader.java:841)
at java.lang.ClassLoader.loadClass(ClassLoader.java:469)
at java.lang.Class.classForName(Native Method) 
at java.lang.Class.forName(Class.java:324) 
at android.os.Parcel.readParcelableCreator(Parcel.java:2404) 
at android.os.Parcel.readParcelable(Parcel.java:2358) 
at android.os.Message.readFromParcel(Message.java:571) 
at android.os.Message.-wrap0(Message.java) 
at android.os.Message$1.createFromParcel(Message.java:527) 
at android.os.Message$1.createFromParcel(Message.java:525) 
at android.os.IMessenger$Stub.onTransact(IMessenger.java:51) 
at android.os.Binder.execTransact(Binder.java:453) 
Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack trace available
if i remove the following information from my AndroidManifest.xml, the app works ok again.
<meta-data android:name="com.parse.push.gcm_sender_id"
android:value="id:xxxxxx" />
<service android:name="com.parse.PushService" />
<receiver android:name="com.parse.GcmBroadcastReceiver" 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="br.com.inconnet.inbeacon" />
</intent-filter>
</receiver>
<receiver android:name="com.parse.ParsePushBroadcastReceiver" android:exported="false">
<intent-filter>
<action android:name="com.parse.push.intent.RECEIVE" />
<action android:name="com.parse.push.intent.OPEN" />
<action android:name="com.parse.push.intent.DELETE" />
</intent-filter>
</receiver>
How can i make both work thogeter?

A similar problem has been reported by folks who are bundling their apps with certain other services and the Android Beacon Library. There is no known fix or even a fully understood cause. You can read more about the issue here:
https://github.com/AltBeacon/android-beacon-library/issues/306
One theory is that bundling some services with your app somehow forces other services in the app to run in a separate process, something the Android Beacon Library does not support.
If you have proguard settings enabled, you may want to try disabling them to see if this makes the problem go away.

Explanation for random ClassNotFoundExceptions?

I have an app with ~11k active installs for which I sometimes receive ClassNotFoundExceptions that I can't explain. They look like this:
java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{name.of.my.MainActivityClass}: java.lang.ClassNotFoundException: name.of.my.MainActivityClass in loader dalvik.system.PathClassLoader[/mnt/asec/name.of.my-2/pkg.apk]
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1743)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1851)
at android.app.ActivityThread.access$1500(ActivityThread.java:132)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1038)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:150)
at android.app.ActivityThread.main(ActivityThread.java:4293)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:507)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:849)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:607)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.ClassNotFoundException: name.of.my.MainActivityClass in loader dalvik.system.PathClassLoader[/mnt/asec/name.of.my-2/pkg.apk]
at dalvik.system.PathClassLoader.findClass(PathClassLoader.java:240)
at java.lang.ClassLoader.loadClass(ClassLoader.java:551)
at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
at android.app.Instrumentation.newActivity(Instrumentation.java:1040)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1735)
... 11 more
I received some of these exceptions from users that updated my app (not only for the most recent version), so I think it is not a problem that is specific to some phones as the app worked for them before.
I got these exception reports for my main activity class, a receiver class and a BackupAgent class.
All of those classes are always instantiated directly from Android. My Manifest file looks like this:
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="name.of.my"
android:versionCode="20"
android:versionName="1.10.2"
android:installLocation="auto">
<uses-sdk android:minSdkVersion="4" android:targetSdkVersion="8" />
<application android:icon="#drawable/icon" android:label="#string/app_name" android:backupAgent="name.of.my.OwnBackupAgent">
<activity android:name="name.of.my.MainActivityClass"
android:label="#string/app_name"
android:theme="#style/MyTheme">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<receiver android:name="name.of.my.OwnReceiver">
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
<intent-filter>
<action android:name="android.media.RINGER_MODE_CHANGED" />
</intent-filter>
</receiver>
</application>
</manifest>
After searching the net for some hours, the most likely explanations I found are:
it might be related to moving the app to SD card while there are still some services running (but the android dev guide says that all services are canceled in this case, and it doesn't explain why my main activity class suddenly can't be found anymore)
the .apk might be corrupted after updating via the android market. Could this be true? If yes, what can I do against it - if not, what else might be the problem?