blocks|key|3533016|text|此命令将输出与设备的电源相关的所有内容：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3533017|adb+shell+dumpsys+power|code-block|syntax|javascript|3533018|您可以将其传输到grep以获得mHoldingWakeLockSuspendBlocker和mHoldingDisplaySuspendBlocker的值。|offset|length|style|CODE|3533019|adb+shell+dumpsys+power+%7C+grep+'mHolding'|3533020|如果两者都是假的，则显示关闭。|3533021|如果mHoldingWakeLockSuspendBlocker为false，而mHoldingDisplaySuspendBlocker为真，则显示为打开，但已锁定。|3533022|如果两者都为真，则显示是打开的。|3533023|entityMap^0|0|0|F|U|1A|T|0|0|0|2|U|14|T|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|X|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Y|8|@$I|Z|J|10|K|L]|$I|11|J|12|K|L]]|9|@]|A|$]]|$1|M|3|N|5|D|7|13|8|@]|9|@]|A|$E|F]]|$1|O|3|P|5|6|7|14|8|@]|9|@]|A|$]]|$1|Q|3|R|5|6|7|15|8|@$I|16|J|17|K|L]|$I|18|J|19|K|L]]|9|@]|A|$]]|$1|S|3|T|5|6|7|1A|8|@]|9|@]|A|$]]|$1|U|3|-4|5|6|7|1B|8|@]|9|@]|A|$]]]|V|$]]

This command will output everything relating to power for the device:

<pre><code>adb shell dumpsys power
</code></pre>

You can pipe this to a grep to get the values of <code>mHoldingWakeLockSuspendBlocker</code> and <code>mHoldingDisplaySuspendBlocker</code>:

<pre><code>adb shell dumpsys power | grep 'mHolding'
</code></pre>

If both are false, the display is off.

If <code>mHoldingWakeLockSuspendBlocker</code> is false, and <code>mHoldingDisplaySuspendBlocker</code> is true, the display is on, but locked.

If both are true, the display is on.

blocks|key|3533036|text|如果它是根手机，您可以检查一些与锁定在settings.db中相关的字段。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3533037|settings.db位于/data/data/com.android.providers.settings/databases|offset|length|style|CODE|3533038|entityMap^0|0|D|1F|0^^$0|@$1|2|3|4|5|6|7|J|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|K|8|@$D|L|E|M|F|G]]|9|@]|A|$]]|$1|H|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|I|$]]

If its a rooted phone you can check some fields related to lock in settings.db.

settings.db is located at <code>/data/data/com.android.providers.settings/databases</code>

blocks|key|605106|text|因为洛利波普、PowerManager.isInteractive()和TrustManager.isDeviceLocked()是检查设备屏幕是否打开和解锁的正确方法。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|605107|它们相应的service+call命令是：|605108|adb+shell+service+call+power+12|code-block|syntax|javascript|605109|和|605110|adb+shell+service+call+trust+7|605111|这就是如何从Python代码中检查它，而不必为您的设备(+https://gist.github.com/ktnr74/60ac7bcc2cd17b43f2cb+)查找特定于Android版本的服务调用代码。|605112|entityMap|0|LINK|mutability|MUTABLE|url|https://gist.github.com/ktnr74/60ac7bcc2cd17b43f2cb^0|7|S|10|T|0|5|C|0|0|0|0|T|1F|0|0^^$0|@$1|2|3|4|5|6|7|10|8|@$9|11|A|12|B|C]|$9|13|A|14|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|15|8|@$9|16|A|17|B|C]]|D|@]|E|$]]|$1|H|3|I|5|J|7|18|8|@]|D|@]|E|$K|L]]|$1|M|3|N|5|6|7|19|8|@]|D|@]|E|$]]|$1|O|3|P|5|J|7|1A|8|@]|D|@]|E|$K|L]]|$1|Q|3|R|5|6|7|1B|8|@]|D|@$9|1C|A|1D|1|1E]]|E|$]]|$1|S|3|-4|5|6|7|1F|8|@]|D|@]|E|$]]]|T|$U|$5|V|W|X|E|$Y|Z]]]]

Since Lollipop <code>PowerManager.isInteractive()</code> and <code>TrustManager.isDeviceLocked()</code> are the proper methods to check if the device's screen is on and unlocked.

And their corresponding <code>service call</code> commands would be:

<pre><code>adb shell service call power 12
</code></pre>

and

<pre><code>adb shell service call trust 7
</code></pre>

And this is how it can be checked from Python code without having to find Android version specific service call codes for your device - <a href="https://gist.github.com/ktnr74/60ac7bcc2cd17b43f2cb" rel="noreferrer">https://gist.github.com/ktnr74/60ac7bcc2cd17b43f2cb</a>

blocks|key|3445845|text|布赖恩的解决方案不适用于我的设备(三星Galaxy+S3运行4.4.2版)。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3445846|我的KitKat+GS3：|3445847|我可以通过检查mScreenOn=true+(不考虑屏幕锁定状态)可靠地判断屏幕是否开着。|unordered-list-item|offset|length|style|CODE|3445848|我可以通过检查mUserActivityTimeoutOverrideFromWindowManager=-1+(不管屏幕打开还是关闭)可靠地判断屏幕是否被解锁。|3445849|如果这不适用于您，我建议您尝试以下方法：|3445850|锁定电话并关闭屏幕，然后运行：|ordered-list-item|3445851|adb+shell+dumpsys+power+>+dumpsys.power.screen_off.locked.txt|3445852|唤醒电话&把它锁上，然后运行：|3445853|adb+shell+dumpsys+power+>+dumpsys.power.screen_on.locked.txt|3445854|保持手机清醒并解锁屏幕，然后运行：|3445855|adb+shell+dumpsys+power+>+dumpsys.power.screen_on.unlocked.txt|3445856|关闭屏幕，但不要锁定它，然后运行：|3445857|adb+shell+dumpsys+power+>+dumpsys.power.screen_off.unlocked.txt|3445858|然后使用文本转换工具(如winmerge)查找.txt文件之间的差异。|3445859|entityMap^0|0|0|7|E|0|7|1C|0|0|0|0|1P|0|0|0|1O|0|0|0|1Q|0|0|0|1R|0|N|4|0^^$0|@$1|2|3|4|5|6|7|19|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|1A|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|1B|8|@$G|1C|H|1D|I|J]]|9|@]|A|$]]|$1|K|3|L|5|F|7|1E|8|@$G|1F|H|1G|I|J]]|9|@]|A|$]]|$1|M|3|N|5|6|7|1H|8|@]|9|@]|A|$]]|$1|O|3|P|5|Q|7|1I|8|@]|9|@]|A|$]]|$1|R|3|S|5|6|7|1J|8|@$G|1K|H|1L|I|J]]|9|@]|A|$]]|$1|T|3|U|5|Q|7|1M|8|@]|9|@]|A|$]]|$1|V|3|W|5|6|7|1N|8|@$G|1O|H|1P|I|J]]|9|@]|A|$]]|$1|X|3|Y|5|Q|7|1Q|8|@]|9|@]|A|$]]|$1|Z|3|10|5|6|7|1R|8|@$G|1S|H|1T|I|J]]|9|@]|A|$]]|$1|11|3|12|5|Q|7|1U|8|@]|9|@]|A|$]]|$1|13|3|14|5|6|7|1V|8|@$G|1W|H|1X|I|J]]|9|@]|A|$]]|$1|15|3|16|5|Q|7|1Y|8|@$G|1Z|H|20|I|J]]|9|@]|A|$]]|$1|17|3|-4|5|6|7|21|8|@]|9|@]|A|$]]]|18|$]]

Bryan's solution didn't work for my device (Samsung Galaxy S3 running version 4.4.2).

For my KitKat GS3:

<ul>
<li>I can reliably tell if the screen is on by checking for <code>mScreenOn=true</code> (works regardless of screen lock state).</li>
<li>I can reliably tell if screen is unlocked by checking for <code>mUserActivityTimeoutOverrideFromWindowManager=-1</code> (works regardless of screen ON or OFF).</li>
</ul>

<hr>

If that doesn't work for you, I'd recommend you try the following:

<ol>
<li>Lock phone &amp; turn off screen then run:</li>
</ol>

<code>adb shell dumpsys power &gt; dumpsys.power.screen_off.locked.txt</code>

<ol start="2">
<li>Wake phone &amp; keep it locked then run:</li>
</ol>

<code>adb shell dumpsys power &gt; dumpsys.power.screen_on.locked.txt</code>

<ol start="3">
<li>Keep phone awake and unlock screen then run:</li>
</ol>

<code>adb shell dumpsys power &gt; dumpsys.power.screen_on.unlocked.txt</code>

<ol start="4">
<li>Turn screen off, but don't lock it then run:</li>
</ol>

<code>adb shell dumpsys power &gt; dumpsys.power.screen_off.unlocked.txt</code>

<ol start="5">
<li>Then use a text diffing tool (like winmerge) to look for differences between the <code>.txt</code> files.</li>
</ol>

blocks|key|3533123|text|只有当设备有NFC时，才能这样做：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3533124|#+returns+one+of:+mScreenState=OFF%7CON_LOCKED%7CON_UNLOCKED
adb+shell+dumpsys+nfc+%7C+grep+'mScreenState='|code-block|syntax|javascript|3533125|关闭屏幕|3533126|ON_LOCKED+-屏幕显示锁定屏幕|3533127|ON_UNLOCKED+-设备解锁|3533128|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Q|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|R|8|@]|9|@]|A|$]]|$1|K|3|L|5|6|7|S|8|@]|9|@]|A|$]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

This works only when device has NFC:

<pre><code># returns one of: mScreenState=OFF|ON_LOCKED|ON_UNLOCKED
adb shell dumpsys nfc | grep 'mScreenState='
</code></pre>

OFF - Screen off

ON_LOCKED - Screen displays locked screen

ON_UNLOCKED - device unlocked

blocks|key|605139|text|我使用的亚行命令是：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|605140|adb+shell+dumpsys+window|offset|length|style|CODE|605141|这将返回一些有用的系统变量，如mAwake、mShowingLockscreen、mScreenOnEarly、mScreenOnFully。|605142|为了找出哪个对应于锁定/解锁的屏幕，我使用了adb+shell+dumpsys+window+>+<textFileNameOfYourChoice>|605143|tl;dr|605144|我发现持久的组合是：|605145|设备锁定，屏幕关闭：mAwake=false和mShowingLockscreen=true|605146|设备被锁定，屏幕打开：mAwake=true和mShowingLockscreen=true|605147|设备解锁，屏幕打开：mAwake=true和mShowingLockscreen=false|605148|entityMap^0|0|0|O|0|F|6|M|I|15|E|1K|E|0|M|1H|0|0|0|A|C|N|N|0|B|B|N|N|0|A|B|M|O|0^^$0|@$1|2|3|4|5|6|7|X|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|Y|8|@$D|Z|E|10|F|G]]|9|@]|A|$]]|$1|H|3|I|5|6|7|11|8|@$D|12|E|13|F|G]|$D|14|E|15|F|G]|$D|16|E|17|F|G]|$D|18|E|19|F|G]]|9|@]|A|$]]|$1|J|3|K|5|6|7|1A|8|@$D|1B|E|1C|F|G]]|9|@]|A|$]]|$1|L|3|M|5|6|7|1D|8|@]|9|@]|A|$]]|$1|N|3|O|5|6|7|1E|8|@]|9|@]|A|$]]|$1|P|3|Q|5|6|7|1F|8|@$D|1G|E|1H|F|G]|$D|1I|E|1J|F|G]]|9|@]|A|$]]|$1|R|3|S|5|6|7|1K|8|@$D|1L|E|1M|F|G]|$D|1N|E|1O|F|G]]|9|@]|A|$]]|$1|T|3|U|5|6|7|1P|8|@$D|1Q|E|1R|F|G]|$D|1S|E|1T|F|G]]|9|@]|A|$]]|$1|V|3|-4|5|6|7|1U|8|@]|9|@]|A|$]]]|W|$]]

One adb command I'm using is:

<code>adb shell dumpsys window</code>

This returns a few system variables that are useful such as <code>mAwake</code>, <code>mShowingLockscreen</code>, <code>mScreenOnEarly</code>, <code>mScreenOnFully</code>.

To figure out which correspond to a locked/unlocked screen, I used <code>adb shell dumpsys window &gt; &lt;textFileNameOfYourChoice&gt;</code>

tl;dr

The combination that I'm finding to be persistent is:

Device is locked AND screen is off:
<code>mAwake=false</code> AND <code>mShowingLockscreen=true</code>

Device is locked AND screen is on:
<code>mAwake=true</code> AND <code>mShowingLockscreen=true</code>

Device is unlocked AND screen is on:
<code>mAwake=true</code> AND <code>mShowingLockscreen=false</code>

blocks|key|3445957|text|附加一个电话并运行这段代码。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3445958|按下电源按钮，看到正在发生的变化。|3445959|打开手机，看到正在发生的变化。|3445960|实验。玩得开心。|3445961|import+re
import+subprocess
import+time

states+=+{
++++'no_cached_wake_locks':+'',
++++'mDirty':+'',
++++'mWakefulness':+'',
++++'mWakefulnessChanging':+'',
++++'mIsPowered':+'',
++++'mPlugType':+'',
++++'mBatteryLevel':+'',
++++'mBatteryLevelCriticalLow':+'',
++++'mLastBatteryLevelCriticalLowTime':+'',
++++'mBatteryLevelWhenDreamStarted':+'',
++++'mDockState':+'',
++++'mStayOn':+'',
++++'mProximityPositive':+'',
++++'mBootCompleted':+'',
++++'mSystemReady':+'',
++++'mHalAutoSuspendModeEnabled':+'',
++++'mHalInteractiveModeEnabled':+'',
++++'mWakeLockSummary':+'',
++++'mUserActivitySummary':+'',
++++'mRequestWaitForNegativeProximity':+'',
++++'mSandmanScheduled':+'',
++++'mSandmanSummoned':+'',
++++'mLowPowerModeEnabled':+'',
++++'mBatteryLevelLow':+'',
++++'mLightDeviceIdleMode':+'',
++++'mDeviceIdleMode':+'',
++++'mScreenBrightnessBoostInProgress':+'',
++++'mDisplayReady':+'',
++++'mHoldingWakeLockSuspendBlocker':+'',
++++'mHoldingDisplaySuspendBlocker':+'',
}


def+checkit():
++++cmd+=+['adb',+'shell',+'dumpsys',+'power']
++++proc+=+subprocess.Popen(cmd,
++++++++++++++++++++++++bufsize=0,
++++++++++++++++++++++++universal_newlines=True,
++++++++++++++++++++++++stdin=None,
++++++++++++++++++++++++stdout=subprocess.PIPE,
++++++++++++++++++++++++stderr=subprocess.STDOUT)

++++changes+=+0
++++for+line2+in+proc.stdout.readlines():
++++line+=+line2.strip()
++++for+state,+value+in+states.items():
++++++++m+=+re.search(r'{}=(.*)'.format(state),+line)
++++++++if+m:
++++++++++++if+value+!=+m.group(1):
++++++++++++++++changes+%2B=+1
++++++++++++++++print("changed:+state={}+old={}+new={}".format(state,+value,+m.group(1)))
++++++++++++++++states[state]+=+m.group(1)
++++if+changes+>+0:
++++print("----+{}+changes".format(changes))


while+True:
++++checkit()
++++time.sleep(0.5)|code-block|syntax|javascript|3445962|对于示例用户来说，这些是在锁定电话和屏幕为黑色之后发生的更改：|3445963|changed:+state=mWakefulness+old=Awake+new=Asleep
changed:+state=mHalAutoSuspendModeEnabled+old=false+new=true
changed:+state=mHalInteractiveModeEnabled+old=true+new=false
changed:+state=mUserActivitySummary+old=0x4+new=0x0
changed:+state=mHoldingDisplaySuspendBlocker+old=true+new=false
----+5+changes
changed:+state=mWakeLockSummary+old=0x1+new=0x0
changed:+state=mHoldingWakeLockSuspendBlocker+old=true+new=false
----+2+changes
changed:+state=mWakeLockSummary+old=0x0+new=0x1
changed:+state=mHoldingWakeLockSuspendBlocker+old=false+new=true
----+2+changes
changed:+state=mWakeLockSummary+old=0x1+new=0x0
changed:+state=mHoldingWakeLockSuspendBlocker+old=true+new=false
----+2+changes|3445964|entityMap^0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|T|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|U|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|V|8|@]|9|@]|A|$]]|$1|H|3|I|5|J|7|W|8|@]|9|@]|A|$K|L]]|$1|M|3|N|5|6|7|X|8|@]|9|@]|A|$]]|$1|O|3|P|5|J|7|Y|8|@]|9|@]|A|$K|L]]|$1|Q|3|-4|5|6|7|Z|8|@]|9|@]|A|$]]]|R|$]]

Attach a phone and run this code.

Press the power button, and see the changes that happen.

Unlock the phone and see the changes that happen.

Experiment. Have fun.

<pre><code>import re
import subprocess
import time

states = {
 'no_cached_wake_locks': '',
 'mDirty': '',
 'mWakefulness': '',
 'mWakefulnessChanging': '',
 'mIsPowered': '',
 'mPlugType': '',
 'mBatteryLevel': '',
 'mBatteryLevelCriticalLow': '',
 'mLastBatteryLevelCriticalLowTime': '',
 'mBatteryLevelWhenDreamStarted': '',
 'mDockState': '',
 'mStayOn': '',
 'mProximityPositive': '',
 'mBootCompleted': '',
 'mSystemReady': '',
 'mHalAutoSuspendModeEnabled': '',
 'mHalInteractiveModeEnabled': '',
 'mWakeLockSummary': '',
 'mUserActivitySummary': '',
 'mRequestWaitForNegativeProximity': '',
 'mSandmanScheduled': '',
 'mSandmanSummoned': '',
 'mLowPowerModeEnabled': '',
 'mBatteryLevelLow': '',
 'mLightDeviceIdleMode': '',
 'mDeviceIdleMode': '',
 'mScreenBrightnessBoostInProgress': '',
 'mDisplayReady': '',
 'mHoldingWakeLockSuspendBlocker': '',
 'mHoldingDisplaySuspendBlocker': '',
}


def checkit():
 cmd = ['adb', 'shell', 'dumpsys', 'power']
 proc = subprocess.Popen(cmd,
 bufsize=0,
 universal_newlines=True,
 stdin=None,
 stdout=subprocess.PIPE,
 stderr=subprocess.STDOUT)

 changes = 0
 for line2 in proc.stdout.readlines():
 line = line2.strip()
 for state, value in states.items():
 m = re.search(r'{}=(.*)'.format(state), line)
 if m:
 if value != m.group(1):
 changes += 1
 print("changed: state={} old={} new={}".format(state, value, m.group(1)))
 states[state] = m.group(1)
 if changes &gt; 0:
 print("---- {} changes".format(changes))


while True:
 checkit()
 time.sleep(0.5)
</code></pre>

For exanple, these are the changes that happen after you lock the phone and the screen is black:

<pre><code>changed: state=mWakefulness old=Awake new=Asleep
changed: state=mHalAutoSuspendModeEnabled old=false new=true
changed: state=mHalInteractiveModeEnabled old=true new=false
changed: state=mUserActivitySummary old=0x4 new=0x0
changed: state=mHoldingDisplaySuspendBlocker old=true new=false
---- 5 changes
changed: state=mWakeLockSummary old=0x1 new=0x0
changed: state=mHoldingWakeLockSuspendBlocker old=true new=false
---- 2 changes
changed: state=mWakeLockSummary old=0x0 new=0x1
changed: state=mHoldingWakeLockSuspendBlocker old=false new=true
---- 2 changes
changed: state=mWakeLockSummary old=0x1 new=0x0
changed: state=mHoldingWakeLockSuspendBlocker old=true new=false
---- 2 changes
</code></pre>

blocks|key|606582|text|其他(@Vouskopes等)回答如下：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|606583|我的手机：XiaoMi+9+|unordered-list-item|606584|安卓：10|606585|606586|​|606587|使用亚行检查屏幕锁定状态|606588|方法1：(通用)使用mDreamingLockscreen|606589|命令：adb+shell+dumpsys+window+%7C+grep+mDreamingLockscreen|606590|输出：|606591|mShowingDream=false+mDreamingLockscreen=true+mDreamingSleepToken=null+->屏幕锁定+|BOLD|606592|无论屏幕是ON还是OFF|606593|606594|606595|606596|-+`mShowingDream=false+mDreamingLockscreen=false+mDreamingSleepToken=null`+->+Scrren+**Unlocked**|code-block|syntax|javascript|606597|606598|方法2:使用nfc+(如果android有NFC模块)|606599|命令：adb+shell+dumpsys+nfc+%7C+grep+'mScreenState='|606600|606601|mScreenState=OFF_LOCKED+->屏幕关闭和锁定|606602|mScreenState=ON_LOCKED+->屏幕打开并锁定|606603|mScreenState=ON_UNLOCKED+->屏幕打开和解锁|606604|606605|606606|entityMap^0|3|A|0|5|8|1|3|2|1|0|0|0|A|J|0|3|1F|0|1|0|1X|22|2|2|5|2|9|3|2|1|0|0|0|0|6|3|0|3|18|0|1|0|N|1|0|M|1|0|O|1|0|0^^$0|@$1|2|3|4|5|6|7|1O|8|@$9|1P|A|1Q|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|1R|8|@$9|1S|A|1T|B|C]]|D|@]|E|$]]|$1|I|3|J|5|H|7|1U|8|@$9|1V|A|1W|B|C]]|D|@]|E|$]]|$1|K|3|-4|5|6|7|1X|8|@]|D|@]|E|$]]|$1|L|3|M|5|6|7|1Y|8|@]|D|@]|E|$]]|$1|N|3|O|5|6|7|1Z|8|@]|D|@]|E|$]]|$1|P|3|Q|5|6|7|20|8|@$9|21|A|22|B|C]]|D|@]|E|$]]|$1|R|3|S|5|H|7|23|8|@$9|24|A|25|B|C]]|D|@]|E|$]]|$1|T|3|U|5|H|7|26|8|@]|D|@]|E|$]]|$1|V|3|W|5|H|7|27|8|@$9|28|A|29|B|C]|$9|2A|A|2B|B|X]]|D|@]|E|$]]|$1|Y|3|Z|5|H|7|2C|8|@$9|2D|A|2E|B|C]|$9|2F|A|2G|B|C]]|D|@]|E|$]]|$1|10|3|-4|5|6|7|2H|8|@]|D|@]|E|$]]|$1|11|3|-4|5|6|7|2I|8|@]|D|@]|E|$]]|$1|12|3|M|5|6|7|2J|8|@]|D|@]|E|$]]|$1|13|3|14|5|15|7|2K|8|@]|D|@]|E|$16|17]]|$1|18|3|M|5|6|7|2L|8|@]|D|@]|E|$]]|$1|19|3|1A|5|6|7|2M|8|@$9|2N|A|2O|B|C]]|D|@]|E|$]]|$1|1B|3|1C|5|H|7|2P|8|@$9|2Q|A|2R|B|C]]|D|@]|E|$]]|$1|1D|3|U|5|H|7|2S|8|@]|D|@]|E|$]]|$1|1E|3|1F|5|H|7|2T|8|@$9|2U|A|2V|B|C]]|D|@]|E|$]]|$1|1G|3|1H|5|H|7|2W|8|@$9|2X|A|2Y|B|C]]|D|@]|E|$]]|$1|1I|3|1J|5|H|7|2Z|8|@$9|30|A|31|B|C]]|D|@]|E|$]]|$1|1K|3|-4|5|6|7|32|8|@]|D|@]|E|$]]|$1|1L|3|M|5|6|7|33|8|@]|D|@]|E|$]]|$1|1M|3|-4|5|6|7|34|8|@]|D|@]|E|$]]]|1N|$]]

Summry other (<code>@Vouskopes</code>, etc) answer here:

<ul>
<li>My Phone: <code>XiaoMi 9</code>

<ul>
<li>Android: <code>10</code></li>
</ul></li>
</ul>

<h1>use adb to check status of screen locked</h1>

<h2>method 1: (universal) use <code>mDreamingLockscreen</code></h2>

<ul>
<li>Command: <code>adb shell dumpsys window | grep mDreamingLockscreen</code></li>
<li>Output:

<ul>
<li><code>mShowingDream=false mDreamingLockscreen=true mDreamingSleepToken=null</code> -> Screen Locked

<ul>
<li>no matter Screen is <code>ON</code> or <code>OFF</code></li>
</ul></li>
<li><code>mShowingDream=false mDreamingLockscreen=false mDreamingSleepToken=null</code> -> Scrren Unlocked</li>
</ul></li>
</ul>

<h2>method 2: use <code>nfc</code> (if android has NFC module)</h2>

<ul>
<li>Command: <code>adb shell dumpsys nfc | grep 'mScreenState='</code></li>
<li>Output:

<ul>
<li><code>mScreenState=OFF_LOCKED</code> -> Screen OFF and Locked</li>
<li><code>mScreenState=ON_LOCKED</code> -> Screen ON and Locked</li>
<li><code>mScreenState=ON_UNLOCKED</code> -> Screen ON and Unlocked</li>
</ul></li>
</ul>

blocks|key|3446052|text|试试adb+shell+dumpsys+window+%7C+grep+mCurrentFocus+%7C+grep+StatusBar；|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|3446053|由于此CMD执行的所有未锁定状态(包括错误的PIN)都返回mCurrentFocus=Window{343b978+u0+StatusBar}。|3446054|例如：|3446055|#!/bin/bash
if+adb+shell+dumpsys+window+%7C+grep+mCurrentFocus+%7C+grep+-q+StatusBar;+then
++++echo+'phone+is+locked';
++++exit+0;
fi

echo+'phone+is+unlocked'|code-block|syntax|javascript|3446056|到Android+10；|3446057|entityMap^0|2|1Q|0|T|16|0|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@$9|T|A|U|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|V|8|@$9|W|A|X|B|C]]|D|@]|E|$]]|$1|H|3|I|5|6|7|Y|8|@]|D|@]|E|$]]|$1|J|3|K|5|L|7|Z|8|@]|D|@]|E|$M|N]]|$1|O|3|P|5|6|7|10|8|@]|D|@]|E|$]]|$1|Q|3|-4|5|6|7|11|8|@]|D|@]|E|$]]]|R|$]]

try <code>adb shell dumpsys window | grep mCurrentFocus | grep StatusBar</code>;
since all unlocked status(include wrong PIN) executed by this CMD return <code>mCurrentFocus=Window{343b978 u0 StatusBar}</code>
example like:
<pre><code>#!/bin/bash
if adb shell dumpsys window | grep mCurrentFocus | grep -q StatusBar; then
 echo 'phone is locked';
 exit 0;
fi

echo 'phone is unlocked'
</code></pre>
By Android 10;

I know that PowerManager and/or KeyguardManager can help me check if a device screen is locked/unlocked. Is there a way to check this via adb?

Is there a way to check if Android device screen is locked via adb?

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我知道PowerManager和/或KeyguardManager可以帮助我检查设备屏幕是否被锁定/解锁。有没有办法通过亚行检查这个问题？

问有没有办法通过亚行检查Android设备屏幕是否被锁定？
EN

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问有没有办法通过亚行检查Android设备屏幕是否被锁定？EN