Part 1 Android Developer Options Explained

 Most Android smartphones and tablets already have dozens (or even hundreds) of settings for changing everything from notifications to system colors. There are even more settings hidden away in the Developer options, which are mostly intended to help with creating Android applications, but some of them can come in handy for other situations too.

Even though some of the features accessible through the Developer options can be helpful, it's not always clear which option does what. Although none of the features in the Developer options will break your phone or tablet, enabling some of them can cause unintended problems. That's why we're going over everything you can do with Developer options in this roundup, so you can know exactly which setting does what.

How to access Developer Options on Android

Developer options are hidden by default, so you need to enable them before you can access any of the available settings. The exact process here depends on what version of Android you're running, and some device manufacturers (such as Samsung) move around where some of the menus are located.

The first step is to find where the Build number is located in the Settings app on your device. Generally, you can find it by opening the Settings app on your device, then navigating to About Phone > Build Number. Android 8.0 and Android 8.1 have it located under System > About Phone > Build Number. If you have a tablet, this is usually called 'About tablet' instead. The location might vary for customized builds of Android — for example, Samsung devices have it under About phone (or tablet) > Software information > Build number.

If you can't find it, you might be using a device with a custom build of Android that moves where some settings are located. If your Settings app has a search button (it's usually near the top of the screen with a magnifying glass icon), press it and search for "build number." If it comes up, press it, and it should be highlighted on the about page.

Once you finally reach the Build number entry, you have to keep tapping on the build number until you see a confirmation message. Older devices simply enabled Developer options immediately, while phones and tablets with newer versions of Android usually require you to enter your lock screen password to confirm. You should see a popup that says "You are now a developer" when you're done, as seen in the screenshot below.

After that, you should now have a new Developer options menu available in your Settings app. Again, the exact location of the Developer options menu depends on your version of Android version and device manufacturer. Some devices (like recent Samsung phones and tablets) place Developer options near the bottom of the main Settings screen, while others move them to a System menu or another location. If you have a search button in your Settings app, you can try tapping it and typing "developer options" to find the menu.

General options

Tap Quick settings developer tiles to add selected developer options to your Quick Settings panel.

Once you select one or more of the available tiles, shown in figure 2, open the Quick Settings panel and tap the pencil to enter edit mode. Then, drag the developer tiles from the tiles pane onto the Quick settings panel, and tap the pencil again to exit edit mode.

Memory: Displays memory stats, such as average memory usage, memory performance, total memory available, average memory used, how much free memory is available, and how much memory apps are using.

Take bug report: Gets a copy of the current device log files to share with someone. When you get a notification that the bug report is ready, tap the notification to share it.

System UI demo mode: Makes it easier to take clean screenshots by displaying a generic, preset notification bar that doesn't show notifications or low battery warnings. Enable Demo Mode lets you change the appearance of the status bar using adb demo mode commands. Or you can use Show Demo Mode to hide notifications and display a preset status bar.

Desktop backup password: Sets a backup password so you can use adb commands to back up and restore device apps and data under password protection.

Stay awake: Sets your screen to stay on while the device is plugged in.

Enable Bluetooth Host Controller Interface (HCI) snoop log: Captures all Bluetooth HCI packets in a file stored at /sdcard/btsnoop_hci.log. You can retrieve the packets and use a program like Wireshark to analyze and troubleshoot the information.

2nd Part link