How do I eliminate "labels" from the Gmail program running on my Nexus 7 Tablet / Android Version: 6.0.1?

The Gmail on my tablet has a bunch of old "labels" from past email traffic, and I wish to remove/delete those labels.

None of the old labels have any documents in them (they are empty), but they are still shown on the left side of the Gmail screen. They are listed under the headings: "Recent Labels" and "All Labels"

By the way, I did access another screen that has the following listings:

▪ delete labels

▪ remove labels

▪ label:Junk-E-mail-FRIENDS

▪ cancel labels

▪ discard labels

▪ labels

▪ remove account

▪ remove account withdrawal

▪ create labels

I tried all the above commands to eliminate the labels appearing, but with no luck. The message I get is ... Whoops! We didn't find anything for "xxxx labels"

How do I remove these old label listings from appearing on my screen?

samsung galaxy s - Update from app store stuck on "downloading.."

There are three apps that needs an update on my device, I've got an always-on 3G connection and it's working (I can use whatever app I need), but when trying to download the update from the app store the progress bar reach the end (100% downloaded, should have saved it entirely) but it won't install the new update and the page on the store keeps telling "Downloading..".

I tried clearing the store cache/data several times but didn't work, I tried clearing the app's cache too (the one that needs to be updated) but it wasn't useful.

How can I solve? I didn't do anything to my un-rooted semi-new phone (Galaxy S plus with gingerbread)

Answer

I solved this by reinstalling the store update (i.e. switching it back to the basic market app and let it update again)

remove locked by android device manager message

I have played with Android device manager and I have blocked my phone. I have deblocked but everytime my phone enters into standyby it apears me the message "locked by android device manager" and I have to enter the password again.

Do you know how to remove this message?

wi fi - What does the "Aggressive Wi-Fi to Cellular handover" option in Developer Settings do?

In Android Lollipop 5.0, I noticed that "Developer Options" features a checkbox for "Aggressive Wi-Fi to Cellular handover" that is unchecked by default. Does anybody know what this setting does and why it's disabled by default and hidden under developer options?

Answer

The code for shouldSwitchNetwork() best explains what it does. It just artificially reduces the WiFi RSSI (received signal strength indication) to encourage the WiFi state machine to decide to switch the connection from WiFi to cellular network. Around line 3559 of WifiStateMachine.java (line 4262 for Android 6.0.1_r10):

int rssi = mWifiInfo.getRssi() - 6 * mAggressiveHandover
        + (homeNetworkBoost ? WifiConfiguration.HOME_NETWORK_RSSI_BOOST : 0);

The variable mAggressiveHandover is an int that is set to 0 or 1 by the Developer Settings:

private void writeWifiAggressiveHandoverOptions() {
    mWifiManager.enableAggressiveHandover(mWifiAggressiveHandover.isChecked() ? 1 : 0);
}

The rssi variable goes on to influence how the connection is classified: isBadRSSI, isLowRSSI, or isHighRSSI.

As to why it's hidden under the developer options, I'd say that is because it seems a little hackish, with a seemingly arbitrary scalar (6) that some dev came up with to nudge the behavior in the desired direction. Google is probably uncertain about the consequences of this setting and the optimal way to adjust rssi. If I'm wrong and this is somehow meaningful, I'm happy to admit it and explain here why.

Turning this setting off does NOT turn off cellular handover altogether. The WiFi connection still gets a score and is disabled if the score is too low. But hey, the initial score is set arbitrarily too.

applications - Cannot open my app it keeps saying app not installed

I transferred some of my app to my SD card using the cm cleaner app and it was working perfectly fine .but suddenly today I cannot open those app it keeps saying app not installed.I tried restarting,reinserting the memory card but nothing seems to work.

arm processors - Are APKs architecture-independent?

Android devices have different processors like ARM and Intel processors. Can Android apps run just the same regardless of which architecture the device has? Or are there apps that will only run on ARM-architecture, etc?

Answer

Yes, applications (APKs) are independent of the architecture.

Android is made up of 4 major levels.

The apps you write is compiled into Dalvik EXecutable (DEX) code, which is finally converted into assembly code (according to the required architecture) by the kernel to send to the processor.

So, the kernel is the final one that's responsible to act according to the required architecture and it's compiled by the ROM developer accordingly.

The DEX code is always independent of the architecture, so that application developers needn't worry about the type of processor.

How to hide status bar notification icons?

I'd like to figure out how to hide the icons of the status bar that would appear in the left. Is there a way to control that? Some apps such as Weather.com don't have the option to hide that icon from the status bar.