I'm using 2014 Moto X (2nd Gen) and lately I keep getting:  Android is starting... &amp; Optimizing app whenever I start my phone(  I tried to clear wipe cache partition, but that did not help towards resolution of my issue.
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I recently updated to Lollipop on a Moto G (1st Gen).   It was running a bit slow, so I wiped by cache then performed a factory reset as recommended.  I now receive the 'Android is starting optimising app xx of xx' every time I boot.   Obviously not life and death, but it's annoying to have to wait 10 minutes for every reboot.   Is this a known issue and is there any way to fix this?
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There are many parties involved in an Android phone. My question is who is responsible for the OTA updates of my phone. Is it the manufacturer, the phone service provider or Google?  I thought this answer could be answered generally but maybe not. My phone is the Galaxy Nexus i9250 witch is manufactured by Samsung.
82273
Does one really need to install a task manager? My phone does slowdown on rare occasions but it's not something that hampers regular usage.
70554
Now that I know , I was wondering how I can restart the phone or turn it off.  The lock button is completely unresponsive and holding it down does nothing. Are there any workarounds besides replacing the button?
90438
I'd like to understand the reason (pros and cons) why Stack Exchange went with a native mobile app and not a hybrid app (using WebView and some native features).   I'm not saying it's a bad thing, I just would love to read about the decision process and arguments for and against. For me intuitively a hybrid app would have made more sense for a site like this.
103010
Is it possible to replace internal memory of a android phone ?  How difficult it is?  Is internal memory part of System On Chip itself, so that it is next to impossible to remove them ?  Have anybody tried this out ?  My device is "Redmi Note" - but you can consider this as a generic question. If these is any device where replacing internal memory is  possible, I will switch to that device :)  Thanks
53231
Several times a day my Android phone (Samsung Galaxy A51, Android 11) is showing this toast  We're having trouble connecting. Check your network connection and try again.  If I stay offline this toast will return every few minutes. How can I find out which app is posting these toasts. And most importantly how do I get rid of them? Long-pressing the toast doesn't show anything.
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Is there any way to disable autostart apps at boot time? I need to disable some of them (not all) like Facebook, etc to get quicker boot time. I'm asking how to do this on Android 9.0.
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Is there some way to autostart the mobile hotspot once turning on the smartphone?  We have an external device relying on a mobile hotspot. We need some way to always run mobile hotspot when the phone is alive.
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We're starting out with some Android development in our company, and I'm working out which  Android versions we should support.    In one of Google's videos from  (22:34 minutes in) there is a pie chart showing roughly a third of users each for Android 1.5, 1.6 and 2.1.    Does anyone have a more up-to-date source for the percentages of active Android devices with each version of the platform?
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I'm running stock Android 4.4 on my Nexus 4, and I keep seeing this weird icon that looks like a gray tag or arrow with a plus sign in it.    I don't know any app that does this, and there's never a matching notification when I pull the notification bar down. What does this mean?
80833
Forgive me for the unclear title. Some time ago, my HTC M8, which is rooted and runs on a  showed something weird. Firstly, in the Google Maps App a mysterious blue dot appeared, that captures the screen completely and makes it impossible to quit or use the application. It looks like this (I could make a screenshot)     When this happens in Maps, the only thing I can do is a hard restart with Power+Volume Up.  Since I have seen this occasionally in the camera app as well, I suspect it is not a bug of Maps itself. I know that the Venom ROM is not standard but maybe this is connected to some setting and anyone has seen this. Btw, the Venom ran smoothly for almost 3 years now.  Question: Has someone a clue what this could be and how I can get rid of it?
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I bought myself a new Android phone since my last one died (overheated). So I've lost all the applications.  Is there some kind of download history to find what you've downloaded via your Google Account or something? I'm aware of something similar in Market &gt; My Apps,  but that contains only what you have on the current device.
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I have upgraded my phone to Android 2.1. I need to reset my phone but I don't want to lose the upgrade. Is it possible to do this? How?
18117
A mysterious app named &quot;10102&quot; shows up in my data usage. It bears only the standard Android app icon (the Bugdroid logo with a cube on its torso). From what the graph tells me, it has used 36 megabytes of data in the background and zero on the foreground. I think I haven't uninstalled anything for months. Is it malware? I haven't sideloaded anything and only authorized my laptop as a USB debugger. If it's malware, how do I remove it? I have no idea how to find its package name and 10102 isn't in the list of downloaded apps in settings. I'm running stock &amp; never-been-rooted Android 4.4.4 on Nexus 4.
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I have white blank on the posts.    App Version: 1.0.89 Device Manufacturer: Meizu Device Model: m2   OS Version: 5.1 (1464689330)    I can't see the questions and the answers and the comments.  I saw that it's a common issue..  Does it have a fix?   EDIT -  I saw  answer. This answer is ~2 years old. It says that it will fix in the next update.  His version is 1.0.59 - mine is 1.0.89. Huge different.   The problem is still exists!
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ART has better performance and better battery life on paper at least.  Should I consider switching to it on my moto g? What are the results I can expect? What precautions should I take? Is it easy to turn back to dalvik?