I prefer to connect with a hotspot on the device. This is more private and does not open your debugging connection to the public wlan. The command adb devices -l should now display two devices if everything is ok. For example:. The tricky part comes when unplugging the USB connection.
In my case both connections are closed immediately! This may not be the case for all users. I solved the problem by manually reconnecting the Wifi after unplugging usb by. After that adb devices -l shows a single wifi connected device. This devices shows also up in android studio and can then be selected for debugging.
When the connection is unstable you may need to repeat the above command from time to time to reactivate the connection. Same network". You can check its working on github. Probably this is the most simplest way to debug on wifi. I am using this application from many days and it works flawlessly. I'm using AS 3. Required: You need to connect android device and computer to the same router via wifi. You can use Android Wifi tethering also. Step 1: Connect Android device via USB with developer mode enabled , and check its connection via adb devices.
Step 4: Execute command adb -d shell for device OR adb -e shell for emulator. Here you will get the shell access to the device. Step 5: Execute command ipconfig Windows command or ifconfig Linux command and check the ip-address of it. You can open it on any port which is not currently occupied. Now, run adb device and check the debugging device is now connected wirelessly via wifi.
Got this error? Most of you are here because you didn't do the first thing that is: 1. Connect our Phone with the PC 2. Find the local IP address of your Android device. Don't forget! Allow ADB debugging in charge only mode enabled before connecting the device.
In Android Studio 3. After the installation restart your android studio. Click the icon and connect your device. All of the answers so far, is missing one VERY important step, otherwise you will get "connection refused" when trying to connect.
Step 1: First enable Developer Options menu on your device, by navigating to the About menu on your device, then tapping the Build menu 5 times.
This is a privileged API that can be used by device manufacturers in limited circumstances for example, a nonmobile, preconfigured device. This setting has no effect when the device is disconnected, meaning that connectivity scans and network selection still occur.
If the device is connected to a Wi-Fi network, the framework evaluates whether the current network is good enough to skip network selection. A network is defined as good enough to skip network selection if any of the following requirements are met:. If the connected Wi-Fi network isn't good enough or if the device isn't connected to a network, the framework calls the network nominators to generate a list of candidate Wi-Fi networks to connect to based on filtered scan results.
The network nominators find existing Wi-Fi configurations or create new configurations for the candidate networks. When the device is rapidly moving, the scan results are optionally further filtered to remove BSSIDs whose RSSI varies rapidly indication that they aren't moving along with the device. The framework runs the candidate scorer to generate a score for each service set identifier SSID candidate.
The candidate with the highest score is the winning candidate. The framework executes the user connect choice algorithm, which might make a user-selected network the new winning candidate instead of using the winning candidate from the candidate scorer. The framework determines whether the winning candidate matches the currently connected network.
To be considered a match, one of the following must be met:. If the winning candidate matches the currently connected network, no further action is taken. If the winning candidate doesn't match the network, the device is associated to the winning candidate. Note that automatic network connection is disabled while an app uses the Wi-Fi Network Request API , which overrides the system and creates a no-internet LAN, except on devices that support dual concurrent stations.
The Android framework or firmware periodically evaluates the quality of the connected network. This section describes how the connected network is evaluated when the screen is on or off. This evaluation is done in addition to the network selection discussed above.
The framework doesn't initiate an evaluation on the connected network, but the network selection process might still occur if scans are initiated by other components for example, location services. The firmware evaluates the network quality and if the network quality is bad, the firmware might roam or eventually disassociate from the network and wake up the host.
Scans are performed automatically based on whether the device has the screen on, has the screen off and is connected to Wi-Fi, or has the screen off and isn't connected to Wi-Fi. The framework triggers scan decisions at increasing intervals when the screen is turned on. By default, scans occur using exponential backoff intervals of 20, 40, 80, and seconds, with subsequent scans possibly performed at second intervals these are the default values of the above overlays.
The exponential backoff scan intervals are reset and restart at 20 seconds whenever the screen state changes, that is, when the screen is toggled on or off. A decision whether to execute or skip a scan is based on whether the current network connection is good enough to skip scanning.
A connection is good enough to skip scanning if any of the following requirements are met:. The framework doesn't perform any scans when the screen is off. The framework configures the firmware with a list of SSIDs to scan for and a list of channels on which to scan. If a configured SSID is found, the firmware wakes the framework.
The framework also configures the interval at which the firmware is to perform PNO scans, using the device mobility state to select different scan intervals. The network nominators find or create configurations WifiConfiguration for networks that are:. Candidate scorers evaluate and provide a score for each candidate. The score for ThroughputScorer the default scorer is based on the following:.
The default bonus for saved versus suggestion and unmetered versus metered that is, the default overlay values produce a strict priority order for saved, suggested, metered, and unmetered:. This means a saved unmetered free network is always selected before a saved metered paid network. The recently selected by user or app score bonus may override that strict priority. The framework can have several candidate scorers installed but only one can be active at a time.
The other scorers can be used for metrics to investigate alternative algorithms. In Android 11, the default scorer is ThroughputScorer. BSSID blocking works by keeping two failure counters, a continuous failure counter and a streak counter, per specific failure type see below for a list of failure types.
When a failure occurs:. The duration is the base duration exponentially increased by the failure streak, that is, a failure streak of 2 implies 4x base block duration. The thresholds for BSSID blocking depend on the failure reason and are each customizable using overlays:.
A failure counter per failure type per network gets incremented when connection failures of that type occur. When the failure count of a particular type exceeds a threshold, the SSID is permanently or temporarily blocked based on a configuration. The configuration for each failure type is coded in WifiConfiguration. Modular Kernels. HIDL General. HIDL Java. ConfigStore HAL. Device Tree Overlays.
Vendor NDK. Vendor Interface Object. Core Concepts. Camera Features. Bluetooth and NFC. Calling and Messaging. ACTS Tests. Surface and SurfaceHolder. SurfaceFlinger and WindowManager. Hardware Composer HAL.
OpenGL ES. Neural Networks. To specify the target, use the devices command to get the serial number of the target. Once you have the serial number, use the -s option with the adb commands to specify the serial number.
In the following example, the list of attached devices is obtained, and then the serial number of one of the devices is used to install the helloWorld. Note: If you issue a command without specifying a target device when multiple devices are available, adb generates an error.
If you have multiple devices available, but only one is an emulator, use the -e option to send commands to the emulator. Likewise, if there are multiple devices but only one hardware device attached, use the -d option to send commands to the hardware device.
You can use adb to install an APK on an emulator or connected device with the install command:. You must use the -t option with the install command when you install a test APK. For more information, see -t. Instead, Android Studio handles the packaging and installation of the app for you.
You can use the forward command to set up arbitrary port forwarding, which forwards requests on a specific host port to a different port on a device. The following example sets up forwarding of host port to device port Use the pull and push commands to copy files to and from an device.
Unlike the install command, which only copies an APK file to a specific location, the pull and push commands let you copy arbitrary directories and files to any location in a device.
In some cases, you might need to terminate the adb server process and then restart it to resolve the problem e. To stop the adb server, use the adb kill-server command. You can then restart the server by issuing any other adb command.
You can issue adb commands from a command line on your development machine or from a script. The usage is:. If there's only one emulator running or only one device connected, the adb command is sent to that device by default. You can use the shell command to issue device commands through adb, or to start an interactive shell. To issue a single command use the shell command like this:. To start an interactive shell on a device use the shell command like this:. Note: With Android Platform-Tools 23 and higher, adb handles arguments the same way that the ssh 1 command does.
But, this change means that the interpretation of any command that contains shell metacharacters has also changed.
For example, the adb shell setprop foo 'a b' command is now an error because the single quotes ' are swallowed by the local shell, and the device sees adb shell setprop foo a b. To make the command work, quote twice, once for the local shell and once for the remote shell, the same as you do with ssh 1. For example, adb shell setprop foo "'a b'".
Android provides most of the usual Unix command-line tools. For a list of available tools, use the following command:. Help is available for most of the commands via the --help argument.
Many of the shell commands are provided by toybox. General help applicable to all toybox commands is available via toybox --help. See also Logcat Command-Line Tool which is useful for monitoring the system log. Within an adb shell, you can issue commands with the activity manager am tool to perform various system actions, such as start an activity, force-stop a process, broadcast an intent, modify the device screen properties, and more.
While in a shell, the syntax is:. You can also issue an activity manager command directly from adb without entering a remote shell. See the Specification for intent arguments. Options are: -D : Enable debugging. Prior to each repeat, the top activity will be finished. This command kills only processes that are safe to kill and that will not impact the user experience. Use with [-e perf true] to generate raw output for performance measurements. Required for test runners. Options are: -w : Wait for debugger when app starts.
This command is helpful for testing your app across different screen sizes by mimicking a small screen resolution using a device with a large screen, and vice versa. Example: am display-size x display-density dpi Override device display density. This command is helpful for testing your app across different screen densities on high-density screen environment using a low density screen, and vice versa.
Example: am display-density to-uri intent Print the given intent specification as a URI. Specification for intent arguments For activity manager commands that take an intent argument, you can specify the intent with the following options:.
Within an adb shell, you can issue commands with the package manager pm tool to perform actions and queries on app packages installed on the device. You can also issue a package manager command directly from adb without entering a remote shell. Options: -f : See their associated file.
Options: -g : Organize by group. Options: -f : List the APK file for the test package.
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