I wish to get help on and incoming call tracking App, designed with Android Studio

I was wondering what people’s thoughts are on the most effective pricing model for in-app purchases. Do you think you would make more money from pricing items individually and cheaply or bundling all items together for a larger price?

I’m thinking of in-app purchases for cosmetic things such as different color schemes, avatars etc where you could offer $0.50 per color scheme, or unlock all 10 for $2.00 for example.

I think for gaming apps, the little and often approach to unlocking new levels, vehicles etc would certainly win, but I’m less sure with a less ‘addictive’ app.

Hi,

I have a Fossil Q Explorist Gen 3 and I have two problems that I think are related. From time to time, I'll notice that my watch doesn't appear to be displaying up to date info, like if I have my phone battery being shown on the watch face, it'll be the % as it was several hours ago. Or maybe it'll occur to me that I haven't felt notifications on my wrist for a while. In any case, I do the following to 'fix' it:

1) On my watch, I go into settings and look at connectivity/wifi. I can see that 'automatic' is selected but the actual SSID displayed underneath might be, say, my home wifi whereas I am now at work. If I just wait a few seconds, it'll update to my work wi-fi...but if it is 'auomatic', surely it should already state my work wifi?
2) On my phone (Honor 9 Lite, Android 9), at this point,if I go into Wear OS. Advanced Settings, it'll often 'hang' if I try to look up my watch battery from there (I use this as a test to see if I can truly connect to my watch). If that's the case, disconnecting and reconnecting to the watch within Wear OS does nothing to help. However, if I turn bluetooth off and on again, connectivity with the watch is restored.

I *think* that I need to do both points 1 and 2 in order to get my watch functioning properly although perhaps point 2 alone would do it.

My question is; are there others out there who have had similar problems and did you do anything that was able to fix it once and for all?

Final point, and I'm not sure if this is the case 100% of the time, but I'm wondering if the problems start after I have used my bluetooth earphones. The phone doesn't throw up any obvious error; my earphones connect fine, I'll listen to music (and the bluetooth indicator states the make of the earphones while I'm connected) and then when I turn my earphones off, all appears to work normally afterwards. I'm just wondering now, as I write this, if my watch issues occur after this...

Thanks for any advice.

Sorry for going off topic, but looking to get a real answer to this issue my brother is having.

My brother is in FDOC, he has a JPS5 it is having heat issue, shutting down in 10 minutes . He says the device showed he used 20% of power by just righting an email to me. With that said he says when he can plug it in, the system can show being in red(30%> before plugging in but sometimes show has being (50%<) has soon has plugged in.

It is hard for me to help him without knowing what apps or settings he can use for optimization of the system like cleaning ram and closing down apps running.

He just learned how to delete music he said, not sure if that says he doesn't know much on device or if it's more the way it has to be done with it connected to kiosk.

We are looking into possibly just getting a second player for him, how would any apps, books, music or what have you be handled (be lost?) Or is it kind of like the play store where he could get them back?

Looking for upper lvl support ( Manager to call) today, they happen to be in a meeting at the time, if no call I will call again and see if they are in a meeting again.

Description: Framework reboot due to native crash in zygote crash with SIGSEGV error

Reproduction: Long duration test with multiple apps and reproduction rate – 1/100.

Description:

Below is the tombstone for zygote:

Line 56603:07-08 10:19:39.605 26565 26565 F DEBUG : Build fingerprint: ------------------------------------------------------------------
Line 56604: 07-08 10:19:39.605 26565 26565 F DEBUG : Revision: '0'
Line 56605: 07-08 10:19:39.605 26565 26565 F DEBUG : ABI: 'arm'
Line 56608: 07-08 10:19:39.606 26565 26565 F DEBUG : pid: 652, tid: 26546, name: HeapTaskDaemon >>> zygote <<<
Line 56609: 07-08 10:19:39.606 26565 26565 F DEBUG : signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 0x130
Line 56610: 07-08 10:19:39.606 26565 26565 F DEBUG : Cause: null pointer dereference
Line 56611: 07-08 10:19:39.606 26565 26565 F DEBUG : r0 dec0b000 r1 5616eb84 r2 00000007 r3 00000000
Line 56612: 07-08 10:19:39.606 26565 26565 F DEBUG : r4 00000130 r5 cd7929c8 r6 00000000 r7 e4fdc380
Line 56613: 07-08 10:19:39.606 26565 26565 F DEBUG : r8 cd7924bc r9 00000000 r10 00000002 r11 00008a0c
Line 56614: 07-08 10:19:39.607 26565 26565 F DEBUG : ip e49b8974 sp cd7924b0 lr e45e1507 pc e45ec316
Line 56712: 07-08 10:19:39.730 26565 26565 F DEBUG :
Line 56713: 07-08 10:19:39.730 26565 26565 F DEBUG : backtrace:
Line 56715: 07-08 10:19:39.730 26565 26565 F DEBUG : #00 pc 000aa316 /system/lib/libart.so (art::TimingLogger::Reset()+106)
Line 56716: 07-08 10:19:39.730 26565 26565 F DEBUG : #01 pc 0016663b /system/lib/libart.so (art::gc::collector::GarbageCollector::Run(art::gc::GcCause, bool)+178)
Line 56717: 07-08 10:19:39.730 26565 26565 F DEBUG : #02 pc 0018035d /system/lib/libart.so (art::gc::Heap::CollectGarbageInternal(art::gc::collector::GcType, art::gc::GcCause, bool)+2420)
Line 56718: 07-08 10:19:39.730 26565 26565 F DEBUG : #03 pc 0018dbeb /system/lib/libart.so (art::gc::Heap::ConcurrentGC(art::Thread*, art::gc::GcCause, bool)+182)
Line 56719: 07-08 10:19:39.730 26565 26565 F DEBUG : #04 pc 00191b11 /system/lib/libart.so (art::gc::Heap::ConcurrentGCTask::Run(art::Thread*)+20)
Line 56720: 07-08 10:19:39.730 26565 26565 F DEBUG : #05 pc 001aa957 /system/lib/libart.so (art::gc::TaskProcessor::RunAllTasks(art::Thread*)+34)
Line 56721: 07-08 10:19:39.731 26565 26565 F DEBUG : #06 pc 0007463b /system/framework/arm/boot-core-libart.oat (offset 0x73000) (dalvik.system.VMRuntime.clampGrowthLimit [DEDUPED]+74)
Line 56722: 07-08 10:19:39.731 26565 26565 F DEBUG : #07 pc 0014a85d /system/framework/arm/boot-core-libart.oat (offset 0x73000) (java.lang.Daemons$HeapTaskDaemon.runInternal+172)
Line 56723: 07-08 10:19:39.731 26565 26565 F DEBUG : #08 pc 000ec963 /system/framework/arm/boot-core-libart.oat (offset 0x73000) (java.lang.Daemons$Daemon.run+66)
Line 56724: 07-08 10:19:39.731 26565 26565 F DEBUG : #09 pc 002151b1 /system/framework/arm/boot-core-oj.oat (offset 0x106000) (java.lang.Thread.run+64)
Line 56725: 07-08 10:19:39.731 26565 26565 F DEBUG : #10 pc 00411575 /system/lib/libart.so (art_quick_invoke_stub_internal+68)
Line 56726: 07-08 10:19:39.731 26565 26565 F DEBUG : #11 pc 003eb045 /system/lib/libart.so (art_quick_invoke_stub+224)
Line 56727: 07-08 10:19:39.731 26565 26565 F DEBUG : #12 pc 000a183d /system/lib/libart.so (art::ArtMethod::Invoke(art::Thread*, unsigned int*, unsigned int, art::JValue*, char const*)+136)
Line 56728: 07-08 10:19:39.731 26565 26565 F DEBUG : #13 pc 003498d5 /system/lib/libart.so (art:anonymous namespace)::InvokeWithArgArray(art::ScopedObjectAccessAlreadyRunnable const&, art::ArtMethod*, art:anonymous namespace)::ArgArray*, art::JValue*, char const*)+52)
Line 56729: 07-08 10:19:39.731 26565 26565 F DEBUG : #14 pc 0034a62d /system/lib/libart.so (art::InvokeVirtualOrInterfaceWithJValues(art::ScopedObjectAccessAlreadyRunnable const&, _jobject*, _jmethodID*, jvalue*)+320)
Line 56730: 07-08 10:19:39.731 26565 26565 F DEBUG : #15 pc 0036d0a3 /system/lib/libart.so (art::Thread::CreateCallback(void*)+866)
Line 56731: 07-08 10:19:39.731 26565 26565 F DEBUG : #16 pc 00072dcd /system/lib/libc.so (__pthread_start(void*)+22)
Line 56732: 07-08 10:19:39.731 26565 26565 F DEBUG : #17 pc 0001e3b1 /system/lib/libc.so (__start_thread+24)



One more observation is that we saw few app crashes prior to zygote crash in the path of zygote forking these apps.


pid: 17395, tid: 17395, name: o.android.imoi >>> zygote <<<
signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 0x4
Cause: null pointer dereference
r0 00000000 r1 8b148311 r2 00000000 r3 00000000
r4 e4bdc424 r5 e4bdc420 r6 e4b97a64 r7 e4bdc3c8
r8 e4bc8000 r9 e4bdc448 r10 00003000 r11 00000003
ip 000000ff sp ffbe1230 lr e41e7dd5 pc e41e7de8

backtrace:
#00 pc 000a8de8 /system/lib/libart.so (art::CumulativeLogger::Reset()+68)
#01 pc 00166901 /system/lib/libart.so (art::gc::collector::GarbageCollector:: ()+192)
#02 pc 0017d853 /system/lib/libart.so (art::gc::Heap::ResetGcPerformanceInfo()+34)
#03 pc 003570db /system/lib/libart.so (art::Runtime::InitNonZygoteOrPostFork(_JNIEnv*, bool, art::Runtime::NativeBridgeAction, char const*, bool)+74)
#04 pc 002e8fb7 /system/lib/libart.so (art::ZygoteHooks_nativePostForkChild(_JNIEnv*, _jclass*, long long, int, unsigned char, unsigned char, _jstring*)+3146)
#05 pc 00074c63 /system/framework/arm/boot-core-libart.oat (offset 0x73000) (dalvik.system.ZygoteHooks.nativePostForkChild+154)
#06 pc 000eba15 /system/framework/arm/boot-core-libart.oat (offset 0x73000) (dalvik.system.ZygoteHooks.postForkChild+68)
#07 pc 00ba0ab9 /system/framework/arm/boot-framework.oat (offset 0x393000) (com.android.internal.os.Zygote.callPostForkChildHooks+80)
#08 pc 00412975 /system/lib/libart.so (art_quick_invoke_stub_internal+68)
#09 pc 003eaec7 /system/lib/libart.so (art_quick_invoke_static_stub+222)
#10 pc 000a184f /system/lib/libart.so (art::ArtMethod::Invoke(art::Thread*, unsigned int*, unsigned int, art::JValue*, char const*)+154)
#11 pc 00349655 /system/lib/libart.so (art:anonymous namespace)::InvokeWithArgArray(art::ScopedObjectAccessAlreadyRunnable const&, art::ArtMethod*, art:anonymous namespace)::ArgArray*, art::JValue*, char const*)+52)
#12 pc 0034947f /system/lib/libart.so (art::InvokeWithVarArgs(art::ScopedObjectAccessAlreadyRunnable const&, _jobject*, _jmethodID*, std::__va_list)+310)
#13 pc 00290219 /system/lib/libart.so (art::JNI::CallStaticVoidMethodV(_JNIEnv*, _jclass*, _jmethodID*, std::__va_list)+444)
#14 pc 0006e579 /system/lib/libandroid_runtime.so (_JNIEnv::CallStaticVoidMethod(_jclass*, _jmethodID*, ...)+28)
#15 pc 0011c2ed /system/lib/libandroid_runtime.so ((anonymous namespace)::ForkAndSpecializeCommon(_JNIEnv*, unsigned int, unsigned int, _jintArray*, int, _jobjectArray*, long long, long long, int, _jstring*, _jstring*, bool, _jintArray*, _jintArray*, bool, _jstring*, _jstring*)+4052)
#16 pc 0011ab37 /system/lib/libandroid_runtime.so (android::com_android_internal_os_Zygote_nativeForkAndSpecialize(_JNIEnv*, _jclass*, int, int, _jintArray*, int, _jobjectArray*, int, _jstring*, _jstring*, _jintArray*, _jintArray*, unsigned char, _jstring*, _jstring*)+470)
#17 pc 003b8ba3 /system/framework/arm/boot-framework.oat (offset 0x393000) (com.android.internal.os.Zygote.nativeForkAndSpecialize+338)
#18 pc 00ba3a8b /system/framework/arm/boot-framework.oat (offset 0x393000) (com.android.internal.os.ZygoteConnection.processOneCommand+1450)
#19 pc 00ba7a5b /system/framework/arm/boot-framework.oat (offset 0x393000) (com.android.internal.os.ZygoteServer.runSelectLoop+770)
#20 pc 00ba5269 /system/framework/arm/boot-framework.oat (offset 0x393000) (com.android.internal.os.ZygoteInit.main+1696)
#21 pc 00412975 /system/lib/libart.so (art_quick_invoke_stub_internal+68)
#22 pc 003eaec7 /system/lib/libart.so (art_quick_invoke_static_stub+222)
#23 pc 000a184f /system/lib/libart.so (art::ArtMethod::Invoke(art::Thread*, unsigned int*, unsigned int, art::JValue*, char const*)+154)
#24 pc 00349655 /system/lib/libart.so (art:anonymous namespace)::InvokeWithArgArray(art::ScopedObjectAccessAlreadyRunnable const&, art::ArtMethod*, art:anonymous namespace)::ArgArray*, art::JValue*, char const*)+52)
#25 pc 0034947f /system/lib/libart.so (art::InvokeWithVarArgs(art::ScopedObjectAccessAlreadyRunnable const&, _jobject*, _jmethodID*, std::__va_list)+310)
#26 pc 00290219 /system/lib/libart.so (art::JNI::CallStaticVoidMethodV(_JNIEnv*, _jclass*, _jmethodID*, std::__va_list)+444)
#27 pc 0006e579 /system/lib/libandroid_runtime.so (_JNIEnv::CallStaticVoidMethod(_jclass*, _jmethodID*, ...)+28)
#28 pc 0007073b /system/lib/libandroid_runtime.so (android::AndroidRuntime::start(char const*, android::Vector<android::String8> const&, bool)+462)
#29 pc 00001c8f /system/bin/app_process32 (main+1122)
#30 pc 000a2245 /system/lib/libc.so (__libc_init+48)
#31 pc 000017eb /system/bin/app_process32 (_start_main+38)
#32 pc 000000c4 <unknown>




Analysis:


Loaded coredump in GDB:


#0 art::TimingLogger::Reset (this=0x130) at art/runtime/base/timing_logger.cc:148
No locals.
#1 0xe46a863e in Reset (this=0x120, gc_cause=<optimized out>, clear_soft_references=<optimized out>) at art/runtime/gc/collector/garbage_collector.cc:49
No locals.
#2 art::gc::collector::GarbageCollector::Run (this=0xe4fdc380, gc_cause=art::gc::kGcCauseBackground, clear_soft_references=true) at art/runtime/gc/collector/garbage_collector.cc:92
start_time = 151785656375586
current_iteration = 0x120
end_time = <optimized out>
self = <optimized out>
#3 0xe46c2360 in art::gc::Heap::CollectGarbageInternal (this=0xe4f3c800, gc_type=art::gc::collector::kGcTypeFull, gc_cause=art::gc::kGcCauseBackground, clear_soft_references=<optimized out>)
at art/runtime/gc/heap.cc:2648
runtime = 0xe4f3c400
self = 0xe42acc00
collector = 0xe4fdc380
#4 0xe46cfbee in art::gc::Heap::ConcurrentGC (this=0xe4f3c800, self=0xe42acc00, cause=art::gc::kGcCauseBackground, force_full=<optimized out>) at art/runtime/gc/heap.cc:3675
next_gc_type = art::gc::collector::kGcTypeSticky
tid = 26546
#5 0xe46d3b14 in art::gc::Heap::ConcurrentGCTask::Run (this=<optimized out>, self=0x5616eb84) at art/runtime/gc/heap.cc:3620
heap = 0xe4f3c800
#6 0xe46ec958 in art::gc::TaskProcessor::RunAllTasks (this=0xe4f30200, self=0xe42acc00) at art/runtime/gc/task_processor.cc:129
task = 0xdec08000
#7 0x720bc63c in ?? ()


From here, we see that at frame 2, current_iteration = 0x120 is holding invalid address, which is a member of garbage collector class, see below code for reference.


In file -- art/runtime/gc/collector/garbage_collector.cc


91 Iteration* current_iteration = GetCurrentIteration();
92 current_iteration->Reset(gc_cause, clear_soft_references);



429 const collector::Iteration* GetCurrentGcIteration() const {
430 return &current_gc_iteration_;
431 }


1254 collector::Iteration current_gc_iteration_;


And we see the collector object being zeroed out, which seems to be the reason for our crash.


gdb) f 2
#2 art::gc::collector::GarbageCollector::Run (this=0xe4fdc380, gc_cause=art::gc::kGcCauseBackground, clear_soft_references=true) at art/runtime/gc/collector/garbage_collector.cc:92
92 in art/runtime/gc/collector/garbage_collector.cc
(gdb) x/100 this
0xe4fdc380: 0 0 0 0
0xe4fdc390: 0 0 0 0
0xe4fdc3a0: 0 0 0 0
0xe4fdc3b0: 0 0 0 0
0xe4fdc3c0: 0 0 0 0
0xe4fdc3d0: 0 0 0 0
0xe4fdc3e0: 0 0 0 0
0xe4fdc3f0: 0 0 0 0
0xe4fdc400: 0 0 0 0
0xe4fdc410: 0 0 0 0
0xe4fdc420: 0 0 0 0
0xe4fdc430: 0 0 0 0
0xe4fdc440: 0 0 0 0
0xe4fdc450: 0 0 0 0
0xe4fdc460: 0 0 0 0
0xe4fdc470: 0 0 0 0
0xe4fdc480: 0 0 0 0
0xe4fdc490: 0 0 0 0
0xe4fdc4a0: 0 0 0 0
0xe4fdc4b0: 0 0 0 0
0xe4fdc4c0: 0 0 0 0
0xe4fdc4d0: 0 0 0 0
0xe4fdc4e0: 0 0 0 0
0xe4fdc4f0: 0 0 0 0

The app crashes seen prior to this zygote crash also seem be to due to similar reason, collector object being NULL.

Debug approaches -
We have internally tried to use ASAN and malloc_debug to check is such corruptions can be caught.
Unfortunately, after enabling malloc_debug, issue was not reproducible.
And with ASAN enablement, device runs slow, and results in other unrelated issues.


Can you please help to provide any debug suggestions/ share any similar instances of this issue ?


Regards,
Deepika

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Hello

On my panasonic eluga phone (32 gb internal storage from company), I have formatted sd card (32 gb) as internal.
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Please help.

PS: It works correctly i.e. shows 60gb on my motorola phone.

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A

I like to carry my phone(s) in my shirt pocket. Most don't have a flap and even those that do aren't deep enough to cover the end of a phone. Thus, rain, even soft drizzle, is an issue. Is there any kind of plug or case that would protect the empty headphone port?

Ya know, I get it: higher education is expensive, especially at Universities. (Disclaimer: I worked my way through both undergrad and law school with a couple of small loans, my dad had died and there was no way my mom could have funded it.)

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And think about the lesson being (inadvertently?) taught to the kids on both sides. Sad.

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Hello,

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I like to make my app drawer clean. Sometimes its hard to reach the top. Can you move all the app to the bottom?

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