在Windows上有没有adb等待设备超时的方法

Question

我想使用限时adb wait-for-device，但似乎没有超时功能，

我的变通方法如下，有没有更有效的方法来实现它？

#<python on Windows>
t0 = datetime.datetime.now()
cmd = 'date'
cmd = 'adb -s %s shell "'+ cmd+ '"'
r = 1
while(r!=0 and (t1-t0).seconds < 60):
r = os.system(cmd)
t1 = datetime.datetime.now()

Answer 1

没有特定的超时方法，但您可以尝试

def wait_for_device(self, timeout=5):
"""
Perform `adb wait-for-device` command
Args:
timeout: time interval in seconds to wait for device
Raises:
DeviceConnectionError: if device is not available after timeout
Returns:
None
"""
try:
self.cmd("wait-for-device", timeout=timeout)
except RuntimeError as e:
raisefrom(DeviceConnectionError, "device not ready", e) 

Answer 2

PowerShellWait-*cmdlet具有可以使用的超时选项。您可以将Wait-Job用于此

$timeout = 60
$job = sajb { adb wait-for-device }
if (-not ($job | wjb -T $timeout)) { spjb $job }

您可以将其放入配置文件中以便重用。在PowerShell中运行notepad $PROFILE并粘贴以下函数

Function Invoke-WithTimeOut {
Param (
[int]$timeout,
[scriptblock]$script
)
$job = Start-Job $script
$done = $job | Wait-Job -TimeOut $timeout
if (-not $done) { Stop-Job $job }
}

例如以40s超时运行

Invoke-WithTimeOut 40 { adb wait-for-device }

---

另一个内置解决方案是ScriptRunner.exe，但它将在新窗口中打开进程

ScriptRunner.exe -appvscript pathtoplatform-toolsadb.exe wait-for-device -appvscriptrunnerparameters -wait -timeout=60

该行为与使用Start-Process和Wait-Process而不是Start-Job/Wait-Job运行上述PowerShell代码段时相同