blocks|key|1157724|text|除了Trevor+Johns的答案之外，您还可以按如下方式使用：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1157725|TelephonyManager+telephonyManager+=+(TelephonyManager)getSystemService(Context.TELEPHONY_SERVICE);
telephonyManager.getDeviceId();|code-block|syntax|javascript|1157726|并且您应该将以下权限添加到Manifest.xml文件中：|1157727|<uses-permission+android:name="android.permission.READ_PHONE_STATE"/>|1157728|在模拟器中，你可能会得到一个"00000...“价值。如果设备ID不可用，则getDeviceId()返回NULL。|1157729|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]]|$1|G|3|H|5|6|7|Q|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|S|8|@]|9|@]|A|$]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

In addition to the answer of Trevor Johns, you can use this as follows:

<pre><code>TelephonyManager telephonyManager = (TelephonyManager)getSystemService(Context.TELEPHONY_SERVICE);
telephonyManager.getDeviceId();
</code></pre>

And you should add the following permission into your Manifest.xml file:

<pre><code>&lt;uses-permission android:name="android.permission.READ_PHONE_STATE"/&gt;
</code></pre>

In emulator, you'll probably get a like a "00000..." value. getDeviceId() returns NULL if device ID is not available.

blocks|key|1157854|text|当设备没有电话功能时，我使用以下代码来获取IMEI或使用Secure.ANDROID_ID作为替代方案：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1157855|/**
+*+Returns+the+unique+identifier+for+the+device
+*
+*+@return+unique+identifier+for+the+device
+*/
public+String+getDeviceIMEI()+{
++++String+deviceUniqueIdentifier+=+null;
++++TelephonyManager+tm+=+(TelephonyManager)+this.getSystemService(Context.TELEPHONY_SERVICE);
++++if+(null+!=+tm)+{
++++++++deviceUniqueIdentifier+=+tm.getDeviceId();
++++}
++++if+(null+==+deviceUniqueIdentifier+%7C%7C+0+==+deviceUniqueIdentifier.length())+{
++++++++deviceUniqueIdentifier+=+Settings.Secure.getString(this.getContentResolver(),+Settings.Secure.ANDROID_ID);
++++}
++++return+deviceUniqueIdentifier;
}|code-block|syntax|javascript|1157856|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

I use the following code to get the IMEI or use Secure.ANDROID_ID as an alternative, when the device doesn't have phone capabilities:

<pre><code>/**
 * Returns the unique identifier for the device
 *
 * @return unique identifier for the device
 */
public String getDeviceIMEI() {
 String deviceUniqueIdentifier = null;
 TelephonyManager tm = (TelephonyManager) this.getSystemService(Context.TELEPHONY_SERVICE);
 if (null != tm) {
 deviceUniqueIdentifier = tm.getDeviceId();
 }
 if (null == deviceUniqueIdentifier || 0 == deviceUniqueIdentifier.length()) {
 deviceUniqueIdentifier = Settings.Secure.getString(this.getContentResolver(), Settings.Secure.ANDROID_ID);
 }
 return deviceUniqueIdentifier;
}
</code></pre>

blocks|key|1372932|text|来自：http://mytechead.wordpress.com/2011/08/28/how-to-get-imei-number-of-android-device/|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1372933|以下代码帮助您获取android设备的IMEI数量：|1372934|TelephonyManager+tm+=+(TelephonyManager)getSystemService(Context.TELEPHONY_SERVICE);
String+device_id+=+tm.getDeviceId();|code-block|syntax|javascript|1372935|Android+Manifest中需要的权限：|1372936|android.permission.READ_PHONE_STATE|1372937|注意:对于不能充当手机的平板电脑或设备，IMEI将为空。|1372938|entityMap|0|LINK|mutability|MUTABLE|url|http://mytechead.wordpress.com/2011/08/28/how-to-get-imei-number-of-android-device/^0|3|2B|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Y|8|@]|9|@$A|Z|B|10|1|11]]|C|$]]|$1|D|3|E|5|6|7|12|8|@]|9|@]|C|$]]|$1|F|3|G|5|H|7|13|8|@]|9|@]|C|$I|J]]|$1|K|3|L|5|6|7|14|8|@]|9|@]|C|$]]|$1|M|3|N|5|H|7|15|8|@]|9|@]|C|$I|J]]|$1|O|3|P|5|6|7|16|8|@]|9|@]|C|$]]|$1|Q|3|-4|5|6|7|17|8|@]|9|@]|C|$]]]|R|$S|$5|T|U|V|C|$W|X]]]]

From: <a href="http://mytechead.wordpress.com/2011/08/28/how-to-get-imei-number-of-android-device/" rel="noreferrer">http://mytechead.wordpress.com/2011/08/28/how-to-get-imei-number-of-android-device/</a>:

The following code helps in obtaining IMEI number of android devices :

<pre class="lang-java prettyprint-override"><code>TelephonyManager tm = (TelephonyManager)getSystemService(Context.TELEPHONY_SERVICE);
String device_id = tm.getDeviceId();
</code></pre>

Permissions required in Android Manifest: 

<pre class="lang-xml prettyprint-override"><code>android.permission.READ_PHONE_STATE
</code></pre>

NOTE: In case of tablets or devices which can’t act as Mobile Phone
IMEI will be null.

blocks|key|1157976|text|对于安卓6.0%2B，游戏已经改变了，所以我建议你使用这个；|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1157977|最好的方法是在运行时，否则你会得到权限错误。|1157978|+++/**
+*+A+loading+screen+after+AppIntroActivity.
+*/
public+class+LoadingActivity+extends+BaseActivity+{
private+static+final+int+MY_PERMISSIONS_REQUEST_READ_PHONE_STATE+=+0;
private+TextView+loading_tv2;

@Override
protected+void+onCreate(Bundle+savedInstanceState)+{
++++super.onCreate(savedInstanceState);
++++setContentView(R.layout.activity_loading);

++++//trigger+'loadIMEI'
++++loadIMEI();
++++/**+Fading+Transition+Effect+*/
++++overridePendingTransition(android.R.anim.fade_in,+android.R.anim.fade_out);
}

/**
+*+Called+when+the+'loadIMEI'+function+is+triggered.
+*/
public+void+loadIMEI()+{
++++//+Check+if+the+READ_PHONE_STATE+permission+is+already+available.
++++if+(ActivityCompat.checkSelfPermission(this,+Manifest.permission.READ_PHONE_STATE)
++++++++++++!=+PackageManager.PERMISSION_GRANTED)+{
++++++++//+READ_PHONE_STATE+permission+has+not+been+granted.
++++++++requestReadPhoneStatePermission();
++++}+else+{
++++++++//+READ_PHONE_STATE+permission+is+already+been+granted.
++++++++doPermissionGrantedStuffs();
++++}
}



/**
+*+Requests+the+READ_PHONE_STATE+permission.
+*+If+the+permission+has+been+denied+previously,+a+dialog+will+prompt+the+user+to+grant+the
+*+permission,+otherwise+it+is+requested+directly.
+*/
private+void+requestReadPhoneStatePermission()+{
++++if+(ActivityCompat.shouldShowRequestPermissionRationale(this,
++++++++++++Manifest.permission.READ_PHONE_STATE))+{
++++++++//+Provide+an+additional+rationale+to+the+user+if+the+permission+was+not+granted
++++++++//+and+the+user+would+benefit+from+additional+context+for+the+use+of+the+permission.
++++++++//+For+example+if+the+user+has+previously+denied+the+permission.
++++++++new+AlertDialog.Builder(LoadingActivity.this)
++++++++++++++++.setTitle("Permission+Request")
++++++++++++++++.setMessage(getString(R.string.permission_read_phone_state_rationale))
++++++++++++++++.setCancelable(false)
++++++++++++++++.setPositiveButton(android.R.string.yes,+new+DialogInterface.OnClickListener()+{
++++++++++++++++++++public+void+onClick(DialogInterface+dialog,+int+which)+{
++++++++++++++++++++++++//re-request
++++++++++++++++++++++++ActivityCompat.requestPermissions(LoadingActivity.this,
++++++++++++++++++++++++++++++++new+String[]{Manifest.permission.READ_PHONE_STATE},
++++++++++++++++++++++++++++++++MY_PERMISSIONS_REQUEST_READ_PHONE_STATE);
++++++++++++++++++++}
++++++++++++++++})
++++++++++++++++.setIcon(R.drawable.onlinlinew_warning_sign)
++++++++++++++++.show();
++++}+else+{
++++++++//+READ_PHONE_STATE+permission+has+not+been+granted+yet.+Request+it+directly.
++++++++ActivityCompat.requestPermissions(this,+new+String[]{Manifest.permission.READ_PHONE_STATE},
++++++++++++++++MY_PERMISSIONS_REQUEST_READ_PHONE_STATE);
++++}
}

/**
+*+Callback+received+when+a+permissions+request+has+been+completed.
+*/
@Override
public+void+onRequestPermissionsResult(int+requestCode,+@NonNull+String[]+permissions,
+++++++++++++++++++++++++++++++++++++++@NonNull+int[]+grantResults)+{

++++if+(requestCode+==+MY_PERMISSIONS_REQUEST_READ_PHONE_STATE)+{
++++++++//+Received+permission+result+for+READ_PHONE_STATE+permission.est.");
++++++++//+Check+if+the+only+required+permission+has+been+granted
++++++++if+(grantResults.length+==+1+&&+grantResults[0]+==+PackageManager.PERMISSION_GRANTED)+{
++++++++++++//+READ_PHONE_STATE+permission+has+been+granted,+proceed+with+displaying+IMEI+Number
++++++++++++//alertAlert(getString(R.string.permision_available_read_phone_state));
++++++++++++doPermissionGrantedStuffs();
++++++++}+else+{
++++++++++++alertAlert(getString(R.string.permissions_not_granted_read_phone_state));
++++++++++}
++++}
}

private+void+alertAlert(String+msg)+{
++++new+AlertDialog.Builder(LoadingActivity.this)
++++++++++++.setTitle("Permission+Request")
++++++++++++.setMessage(msg)
++++++++++++.setCancelable(false)
++++++++++++.setPositiveButton(android.R.string.yes,+new+DialogInterface.OnClickListener()+{
++++++++++++++++public+void+onClick(DialogInterface+dialog,+int+which)+{
++++++++++++++++++++//+do+somthing+here
++++++++++++++++}
++++++++++++})
++++++++++++.setIcon(R.drawable.onlinlinew_warning_sign)
++++++++++++.show();
}


public+void+doPermissionGrantedStuffs()+{
++++//Have+an++object+of+TelephonyManager
++++TelephonyManager+tm+=(TelephonyManager)getSystemService(Context.TELEPHONY_SERVICE);
++++//Get+IMEI+Number+of+Phone++////////////////+for+this+example+i+only+need+the+IMEI
++++String+IMEINumber=tm.getDeviceId();

++++/************************************************
+++++*+**********************************************
+++++*+This+is+just+an+icing+on+the+cake
+++++*+the+following+are+other+children+of+TELEPHONY_SERVICE
+++++*
+++++//Get+Subscriber+ID
+++++String+subscriberID=tm.getDeviceId();

+++++//Get+SIM+Serial+Number
+++++String+SIMSerialNumber=tm.getSimSerialNumber();

+++++//Get+Network+Country+ISO+Code
+++++String+networkCountryISO=tm.getNetworkCountryIso();

+++++//Get+SIM+Country+ISO+Code
+++++String+SIMCountryISO=tm.getSimCountryIso();

+++++//Get+the+device+software+version
+++++String+softwareVersion=tm.getDeviceSoftwareVersion()

+++++//Get+the+Voice+mail+number
+++++String+voiceMailNumber=tm.getVoiceMailNumber();


+++++//Get+the+Phone+Type+CDMA/GSM/NONE
+++++int+phoneType=tm.getPhoneType();

+++++switch+(phoneType)
+++++{
+++++case+(TelephonyManager.PHONE_TYPE_CDMA):
+++++//+your+code
+++++break;
+++++case+(TelephonyManager.PHONE_TYPE_GSM)
+++++//+your+code
+++++break;
+++++case+(TelephonyManager.PHONE_TYPE_NONE):
+++++//+your+code
+++++break;
+++++}

+++++//Find+whether+the+Phone+is+in+Roaming,+returns+true+if+in+roaming
+++++boolean+isRoaming=tm.isNetworkRoaming();
+++++if(isRoaming)
+++++phoneDetails%2B="\nIs+In+Roaming+:+"%2B"YES";
+++++else
+++++phoneDetails%2B="\nIs+In+Roaming+:+"%2B"NO";


+++++//Get+the+SIM+state
+++++int+SIMState=tm.getSimState();
+++++switch(SIMState)
+++++{
+++++case+TelephonyManager.SIM_STATE_ABSENT+:
+++++//+your+code
+++++break;
+++++case+TelephonyManager.SIM_STATE_NETWORK_LOCKED+:
+++++//+your+code
+++++break;
+++++case+TelephonyManager.SIM_STATE_PIN_REQUIRED+:
+++++//+your+code
+++++break;
+++++case+TelephonyManager.SIM_STATE_PUK_REQUIRED+:
+++++//+your+code
+++++break;
+++++case+TelephonyManager.SIM_STATE_READY+:
+++++//+your+code
+++++break;
+++++case+TelephonyManager.SIM_STATE_UNKNOWN+:
+++++//+your+code
+++++break;

+++++}
+++++*/
++++//+Now+read+the+desired+content+to+a+textview.
++++loading_tv2+=+(TextView)+findViewById(R.id.loading_tv2);
++++loading_tv2.setText(IMEINumber);
}
}|code-block|syntax|javascript|1157979|希望这能对你或其他人有所帮助。|1157980|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|N|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|O|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|P|8|@]|9|@]|A|$]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

For Android 6.0+ the game has changed so i suggest you use this;

The best way to go is during runtime else you get permission errors. 

<pre><code> /**
 * A loading screen after AppIntroActivity.
 */
public class LoadingActivity extends BaseActivity {
private static final int MY_PERMISSIONS_REQUEST_READ_PHONE_STATE = 0;
private TextView loading_tv2;

@Override
protected void onCreate(Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);
 setContentView(R.layout.activity_loading);

 //trigger 'loadIMEI'
 loadIMEI();
 /** Fading Transition Effect */
 overridePendingTransition(android.R.anim.fade_in, android.R.anim.fade_out);
}

/**
 * Called when the 'loadIMEI' function is triggered.
 */
public void loadIMEI() {
 // Check if the READ_PHONE_STATE permission is already available.
 if (ActivityCompat.checkSelfPermission(this, Manifest.permission.READ_PHONE_STATE)
 != PackageManager.PERMISSION_GRANTED) {
 // READ_PHONE_STATE permission has not been granted.
 requestReadPhoneStatePermission();
 } else {
 // READ_PHONE_STATE permission is already been granted.
 doPermissionGrantedStuffs();
 }
}



/**
 * Requests the READ_PHONE_STATE permission.
 * If the permission has been denied previously, a dialog will prompt the user to grant the
 * permission, otherwise it is requested directly.
 */
private void requestReadPhoneStatePermission() {
 if (ActivityCompat.shouldShowRequestPermissionRationale(this,
 Manifest.permission.READ_PHONE_STATE)) {
 // Provide an additional rationale to the user if the permission was not granted
 // and the user would benefit from additional context for the use of the permission.
 // For example if the user has previously denied the permission.
 new AlertDialog.Builder(LoadingActivity.this)
 .setTitle("Permission Request")
 .setMessage(getString(R.string.permission_read_phone_state_rationale))
 .setCancelable(false)
 .setPositiveButton(android.R.string.yes, new DialogInterface.OnClickListener() {
 public void onClick(DialogInterface dialog, int which) {
 //re-request
 ActivityCompat.requestPermissions(LoadingActivity.this,
 new String[]{Manifest.permission.READ_PHONE_STATE},
 MY_PERMISSIONS_REQUEST_READ_PHONE_STATE);
 }
 })
 .setIcon(R.drawable.onlinlinew_warning_sign)
 .show();
 } else {
 // READ_PHONE_STATE permission has not been granted yet. Request it directly.
 ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.READ_PHONE_STATE},
 MY_PERMISSIONS_REQUEST_READ_PHONE_STATE);
 }
}

/**
 * Callback received when a permissions request has been completed.
 */
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions,
 @NonNull int[] grantResults) {

 if (requestCode == MY_PERMISSIONS_REQUEST_READ_PHONE_STATE) {
 // Received permission result for READ_PHONE_STATE permission.est.");
 // Check if the only required permission has been granted
 if (grantResults.length == 1 &amp;&amp; grantResults[0] == PackageManager.PERMISSION_GRANTED) {
 // READ_PHONE_STATE permission has been granted, proceed with displaying IMEI Number
 //alertAlert(getString(R.string.permision_available_read_phone_state));
 doPermissionGrantedStuffs();
 } else {
 alertAlert(getString(R.string.permissions_not_granted_read_phone_state));
 }
 }
}

private void alertAlert(String msg) {
 new AlertDialog.Builder(LoadingActivity.this)
 .setTitle("Permission Request")
 .setMessage(msg)
 .setCancelable(false)
 .setPositiveButton(android.R.string.yes, new DialogInterface.OnClickListener() {
 public void onClick(DialogInterface dialog, int which) {
 // do somthing here
 }
 })
 .setIcon(R.drawable.onlinlinew_warning_sign)
 .show();
}


public void doPermissionGrantedStuffs() {
 //Have an object of TelephonyManager
 TelephonyManager tm =(TelephonyManager)getSystemService(Context.TELEPHONY_SERVICE);
 //Get IMEI Number of Phone //////////////// for this example i only need the IMEI
 String IMEINumber=tm.getDeviceId();

 /************************************************
 * **********************************************
 * This is just an icing on the cake
 * the following are other children of TELEPHONY_SERVICE
 *
 //Get Subscriber ID
 String subscriberID=tm.getDeviceId();

 //Get SIM Serial Number
 String SIMSerialNumber=tm.getSimSerialNumber();

 //Get Network Country ISO Code
 String networkCountryISO=tm.getNetworkCountryIso();

 //Get SIM Country ISO Code
 String SIMCountryISO=tm.getSimCountryIso();

 //Get the device software version
 String softwareVersion=tm.getDeviceSoftwareVersion()

 //Get the Voice mail number
 String voiceMailNumber=tm.getVoiceMailNumber();


 //Get the Phone Type CDMA/GSM/NONE
 int phoneType=tm.getPhoneType();

 switch (phoneType)
 {
 case (TelephonyManager.PHONE_TYPE_CDMA):
 // your code
 break;
 case (TelephonyManager.PHONE_TYPE_GSM)
 // your code
 break;
 case (TelephonyManager.PHONE_TYPE_NONE):
 // your code
 break;
 }

 //Find whether the Phone is in Roaming, returns true if in roaming
 boolean isRoaming=tm.isNetworkRoaming();
 if(isRoaming)
 phoneDetails+="\nIs In Roaming : "+"YES";
 else
 phoneDetails+="\nIs In Roaming : "+"NO";


 //Get the SIM state
 int SIMState=tm.getSimState();
 switch(SIMState)
 {
 case TelephonyManager.SIM_STATE_ABSENT :
 // your code
 break;
 case TelephonyManager.SIM_STATE_NETWORK_LOCKED :
 // your code
 break;
 case TelephonyManager.SIM_STATE_PIN_REQUIRED :
 // your code
 break;
 case TelephonyManager.SIM_STATE_PUK_REQUIRED :
 // your code
 break;
 case TelephonyManager.SIM_STATE_READY :
 // your code
 break;
 case TelephonyManager.SIM_STATE_UNKNOWN :
 // your code
 break;

 }
 */
 // Now read the desired content to a textview.
 loading_tv2 = (TextView) findViewById(R.id.loading_tv2);
 loading_tv2.setText(IMEINumber);
}
}
</code></pre>

Hope this helps you or someone.

blocks|key|1158028|text|在API26中，getDeviceId()是折旧的，因此您可以使用以下代码来满足API26和更早版本的需求|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1158029|TelephonyManager+telephonyManager+=+(TelephonyManager)getSystemService(Context.TELEPHONY_SERVICE);
String+imei="";
if+(android.os.Build.VERSION.SDK_INT+>=+26)+{
++imei=telephonyManager.getImei();
}
else
{
++imei=telephonyManager.getDeviceId();
}|code-block|syntax|javascript|1158030|不要忘记为READ_PHONE_STATE添加使用上述代码的权限请求。|1158031|更新:从Android10开始，它限制用户应用程序获取不可重置的硬件标识符，如IMEI。|1158032|entityMap^0|8|D|0|0|5|G|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@$9|R|A|S|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|T|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|U|8|@$9|V|A|W|B|C]]|D|@]|E|$]]|$1|M|3|N|5|6|7|X|8|@]|D|@]|E|$]]|$1|O|3|-4|5|6|7|Y|8|@]|D|@]|E|$]]]|P|$]]

As in API 26 <code>getDeviceId()</code> is depreciated so you can use following code to cater API 26 and earlier versions

<pre><code>TelephonyManager telephonyManager = (TelephonyManager)getSystemService(Context.TELEPHONY_SERVICE);
String imei="";
if (android.os.Build.VERSION.SDK_INT &gt;= 26) {
 imei=telephonyManager.getImei();
}
else
{
 imei=telephonyManager.getDeviceId();
}
</code></pre>

Don't forget to add permission requests for <code>READ_PHONE_STATE</code> to use the above code.

UPDATE:
From Android 10 its is restricted for user apps to get non-resettable hardware identifiers like IMEI.

blocks|key|1158230|text|尝试此操作(始终需要获取第一个IMEI+)|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1158231|TelephonyManager+mTelephony+=+(TelephonyManager)+getSystemService(Context.TELEPHONY_SERVICE);
++++++++if+(ActivityCompat.checkSelfPermission(LoginActivity.this,Manifest.permission.READ_PHONE_STATE)!=+PackageManager.PERMISSION_GRANTED)+{

+++++++++return;
}

if+(Build.VERSION.SDK_INT+>=+Build.VERSION_CODES.M)+{
++++++++++++if+(Build.VERSION.SDK_INT+>=+Build.VERSION_CODES.O)+{
++++++++++++++++if+(mTelephony.getPhoneCount()+==+2)+{
++++++++++++++++++++IME+=+mTelephony.getImei(0);
++++++++++++++++}else{
++++++++++++++++++++IME+=+mTelephony.getImei();
++++++++++++++++}
++++++++++++}else{
++++++++++++++++if+(mTelephony.getPhoneCount()+==+2)+{
++++++++++++++++++++IME+=+mTelephony.getDeviceId(0);
++++++++++++++++}+else+{
++++++++++++++++++++IME+=+mTelephony.getDeviceId();
++++++++++++++++}
++++++++++++}
++++++++}+else+{
++++++++++++IME+=+mTelephony.getDeviceId();
++++++++}|code-block|syntax|javascript|1158232|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Try this(need to get first IMEI always)

<pre><code>TelephonyManager mTelephony = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
 if (ActivityCompat.checkSelfPermission(LoginActivity.this,Manifest.permission.READ_PHONE_STATE)!= PackageManager.PERMISSION_GRANTED) {

 return;
}

if (Build.VERSION.SDK_INT &gt;= Build.VERSION_CODES.M) {
 if (Build.VERSION.SDK_INT &gt;= Build.VERSION_CODES.O) {
 if (mTelephony.getPhoneCount() == 2) {
 IME = mTelephony.getImei(0);
 }else{
 IME = mTelephony.getImei();
 }
 }else{
 if (mTelephony.getPhoneCount() == 2) {
 IME = mTelephony.getDeviceId(0);
 } else {
 IME = mTelephony.getDeviceId();
 }
 }
 } else {
 IME = mTelephony.getDeviceId();
 }
</code></pre>

blocks|key|1157915|text|使用下面的代码可以得到IMEI编号：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1157916|TelephonyManager+telephonyManager+=+(TelephonyManager)+getSystemService(Context.TELEPHONY_SERVICE);
System.out.println("IMEI::"+%2B+telephonyManager.getDeviceId());|code-block|syntax|javascript|1157917|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Use below code gives you IMEI number:

<pre><code>TelephonyManager telephonyManager = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
System.out.println("IMEI::" + telephonyManager.getDeviceId());
</code></pre>

blocks|key|1158068|text|getDeviceId()方法已弃用。这个getImei(int)有一个新的方法|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1158069|Check+here|1158070|entityMap|0|LINK|mutability|MUTABLE|url|https://developer.android.com/reference/android/telephony/TelephonyManager#getImei(int)^0|0|D|L|C|0|0|A|0|0^^$0|@$1|2|3|4|5|6|7|P|8|@$9|Q|A|R|B|C]|$9|S|A|T|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|U|8|@]|D|@$9|V|A|W|1|X]]|E|$]]|$1|H|3|-4|5|6|7|Y|8|@]|D|@]|E|$]]]|I|$J|$5|K|L|M|E|$N|O]]]]

The method <code>getDeviceId()</code> is deprecated.
There a new method for this <code>getImei(int)</code>

<a href="https://developer.android.com/reference/android/telephony/TelephonyManager#getImei(int)" rel="nofollow noreferrer">Check here</a>

blocks|key|1373030|text|对于11级或以上的空气污染指数：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1373031|case+TelephonyManager.PHONE_TYPE_SIP:+
return+"SIP";

TelephonyManager+tm=+(TelephonyManager)getSystemService(Context.TELEPHONY_SERVICE);
textDeviceID.setText(getDeviceID(tm));|code-block|syntax|javascript|1373032|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

for API Level 11 or above:

<pre><code>case TelephonyManager.PHONE_TYPE_SIP: 
return "SIP";

TelephonyManager tm= (TelephonyManager)getSystemService(Context.TELEPHONY_SERVICE);
textDeviceID.setText(getDeviceID(tm));
</code></pre>

blocks|key|1158189|text|Kotlin代码获取DeviceId+(+IMEI+)，处理所有安卓版本的权限和可比性检查：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1158190|+val++telephonyManager+=+getSystemService(Context.TELEPHONY_SERVICE)+as+TelephonyManager
++++if+(ContextCompat.checkSelfPermission(this,+Manifest.permission.READ_PHONE_STATE)
++++++++==+PackageManager.PERMISSION_GRANTED)+{
++++++++//+Permission+is++granted
++++++++val+imei+:+String?+=+if+(Build.VERSION.SDK_INT+>=+Build.VERSION_CODES.O)++telephonyManager.imei
++++++++//+older+OS++versions
++++++++else++telephonyManager.deviceId

++++++++imei?.let+{
++++++++++++Log.i("Log",+"DeviceId=$it"+)
++++++++}

++++}+else+{++//+Permission+is+not+granted

++++}|code-block|syntax|javascript|1158191|还要将此权限添加到AndroidManifest.xml：|1158192|<uses-permission+android:name="android.permission.READ_PHONE_STATE"/>+|1158193|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

Kotlin Code for getting DeviceId ( IMEI ) with handling permission &amp; comparability check for all android versions :

<pre><code> val telephonyManager = getSystemService(Context.TELEPHONY_SERVICE) as TelephonyManager
 if (ContextCompat.checkSelfPermission(this, Manifest.permission.READ_PHONE_STATE)
 == PackageManager.PERMISSION_GRANTED) {
 // Permission is granted
 val imei : String? = if (Build.VERSION.SDK_INT &gt;= Build.VERSION_CODES.O) telephonyManager.imei
 // older OS versions
 else telephonyManager.deviceId

 imei?.let {
 Log.i("Log", "DeviceId=$it" )
 }

 } else { // Permission is not granted

 }
</code></pre>

Also add this permission to AndroidManifest.xml :

<pre><code>&lt;uses-permission android:name="android.permission.READ_PHONE_STATE"/&gt; &lt;!-- IMEI--&gt;
</code></pre>

blocks|key|1158251|text|使用以下代码：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1158252|if+(Build.VERSION.SDK_INT+>=+Build.VERSION_CODES.M)+{
++++++++String[]+permissions+=+{Manifest.permission.READ_PHONE_STATE};
++++++++if+(ActivityCompat.checkSelfPermission(this,
++++++++++++++++Manifest.permission.READ_PHONE_STATE)+!=+PackageManager.PERMISSION_GRANTED)+{
++++++++++++requestPermissions(permissions,+READ_PHONE_STATE);
++++++++}
++++}+else+{
++++++++try+{
++++++++++++TelephonyManager+telephonyManager+=+(TelephonyManager)+getSystemService(Context.TELEPHONY_SERVICE);
++++++++++++if+(ActivityCompat.checkSelfPermission(this,+Manifest.permission.READ_PHONE_STATE)+!=+PackageManager.PERMISSION_GRANTED)+{
++++++++++++++++return;
++++++++++++}
++++++++++++String+imei+=+telephonyManager.getDeviceId();

++++++++}+catch+(Exception+e)+{
++++++++++++e.printStackTrace();
++++++++}
++++}|code-block|syntax|javascript|1158253|并按照下面的代码调用onRequestPermissionsResult方法：|1158254|@Override
public+void+onRequestPermissionsResult(int+requestCode,+@NonNull+String[]+permissions,+@NonNull+int[]+grantResults)+{
++++switch+(requestCode)+{
++++++++case+READ_PHONE_STATE:
++++++++++++if+(grantResults.length+>+0
++++++++++++++++++++&&+grantResults[0]+==+PackageManager.PERMISSION_GRANTED)
++++++++++++++++try+{
++++++++++++++++++++TelephonyManager+telephonyManager+=+(TelephonyManager)+getSystemService(Context.TELEPHONY_SERVICE);
++++++++++++++++++++if+(ActivityCompat.checkSelfPermission(this,+Manifest.permission.READ_PHONE_STATE)+!=+PackageManager.PERMISSION_GRANTED)+{
++++++++++++++++++++++++return;
++++++++++++++++++++}
++++++++++++++++++++String+imei+=+telephonyManager.getDeviceId();

++++++++++++++++}+catch+(Exception+e)+{
++++++++++++++++++++e.printStackTrace();
++++++++++++++++}
++++}
}|1158255|在您的AndroidManifest.xml中添加以下权限：|1158256|<uses-permission+android:name="android.permission.READ_PHONE_STATE"+/>|1158257|entityMap^0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|S|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|T|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|U|8|@]|9|@]|A|$]]|$1|M|3|N|5|D|7|V|8|@]|9|@]|A|$E|F]]|$1|O|3|-4|5|6|7|W|8|@]|9|@]|A|$]]]|P|$]]

use below code:

<pre><code>if (Build.VERSION.SDK_INT &gt;= Build.VERSION_CODES.M) {
 String[] permissions = {Manifest.permission.READ_PHONE_STATE};
 if (ActivityCompat.checkSelfPermission(this,
 Manifest.permission.READ_PHONE_STATE) != PackageManager.PERMISSION_GRANTED) {
 requestPermissions(permissions, READ_PHONE_STATE);
 }
 } else {
 try {
 TelephonyManager telephonyManager = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
 if (ActivityCompat.checkSelfPermission(this, Manifest.permission.READ_PHONE_STATE) != PackageManager.PERMISSION_GRANTED) {
 return;
 }
 String imei = telephonyManager.getDeviceId();

 } catch (Exception e) {
 e.printStackTrace();
 }
 }
</code></pre>

And call onRequestPermissionsResult method following code:

<pre><code>@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
 switch (requestCode) {
 case READ_PHONE_STATE:
 if (grantResults.length &gt; 0
 &amp;&amp; grantResults[0] == PackageManager.PERMISSION_GRANTED)
 try {
 TelephonyManager telephonyManager = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
 if (ActivityCompat.checkSelfPermission(this, Manifest.permission.READ_PHONE_STATE) != PackageManager.PERMISSION_GRANTED) {
 return;
 }
 String imei = telephonyManager.getDeviceId();

 } catch (Exception e) {
 e.printStackTrace();
 }
 }
}
</code></pre>

Add following permission in your AndroidManifest.xml:

<pre><code>&lt;uses-permission android:name="android.permission.READ_PHONE_STATE" /&gt;
</code></pre>

blocks|key|1373273|text|对于那些正在寻找Kotlin版本的用户，您可以使用以下内容；|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1373274|private+fun+telephonyService()+{
++++val+telephonyManager+=+getSystemService(TELEPHONY_SERVICE)+as+TelephonyManager
++++val+imei+=+if+(android.os.Build.VERSION.SDK_INT+>=+26)+{
++++++++Timber.i("Phone+>=+26+IMEI")
++++++++telephonyManager.imei
++++}+else+{
++++++++Timber.i("Phone+IMEI+<+26")
++++++++telephonyManager.deviceId
++++}

++++Timber.i("Phone+IMEI+$imei")
}|code-block|syntax|javascript|1373275|注意:您必须使用checkSelfPermission或您使用的任何方法对上面的telephonyService()进行权限检查。|offset|length|style|CODE|1373276|在清单文件中也添加此权限；|1373277|<uses-permission+android:name="android.permission.READ_PHONE_STATE"/>|1373278|entityMap|0|LINK|mutability|MUTABLE|url|https://developer.android.com/reference/android/support/v4/content/PermissionChecker.html#checkSelfPermission(android.content.Context,%2520java.lang.String)^0|0|0|14|I|8|J|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Y|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|Z|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|10|8|@$I|11|J|12|K|L]]|9|@$I|13|J|14|1|15]]|A|$]]|$1|M|3|N|5|6|7|16|8|@]|9|@]|A|$]]|$1|O|3|P|5|D|7|17|8|@]|9|@]|A|$E|F]]|$1|Q|3|-4|5|6|7|18|8|@]|9|@]|A|$]]]|R|$S|$5|T|U|V|A|$W|X]]]]

For those looking for a Kotlin version, you can use something like this;

<pre><code>private fun telephonyService() {
 val telephonyManager = getSystemService(TELEPHONY_SERVICE) as TelephonyManager
 val imei = if (android.os.Build.VERSION.SDK_INT &gt;= 26) {
 Timber.i("Phone &gt;= 26 IMEI")
 telephonyManager.imei
 } else {
 Timber.i("Phone IMEI &lt; 26")
 telephonyManager.deviceId
 }

 Timber.i("Phone IMEI $imei")
}
</code></pre>

NOTE: You must wrap <code>telephonyService()</code> above with a permission check using <a href="https://developer.android.com/reference/android/support/v4/content/PermissionChecker.html#checkSelfPermission(android.content.Context,%20java.lang.String)" rel="nofollow noreferrer">checkSelfPermission</a> or whatever method you use.

Also add this permission in the manifest file;

<pre><code>&lt;uses-permission android:name="android.permission.READ_PHONE_STATE"/&gt;
</code></pre>

blocks|key|1158287|text|对于Android10，下面的代码对我来说是有效的。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1158288|val+uid:+String+=+Settings.Secure.getString(ctx.applicationContext.contentResolver,+Settings.Secure.ANDROID_ID)
if+(ContextCompat.checkSelfPermission(ctx,+Manifest.permission.READ_PHONE_STATE)+==+PackageManager.PERMISSION_GRANTED)+{
++++++++++++imei+=+when+{
++++++++++++++++Build.VERSION.SDK_INT+>=+Build.VERSION_CODES.Q+->+{
++++++++++++++++++++uid
++++++++++++++++}
++++++++++++++++Build.VERSION.SDK_INT+>=+Build.VERSION_CODES.O+->+{
++++++++++++++++++++telephonyManager.imei
++++++++++++++++}
++++++++++++++++else+->+{
++++++++++++++++++++telephonyManager.deviceId
++++++++++++++++}
++++++++++++}
++++++++}|code-block|syntax|javascript|1158289|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

For Android 10 Following code is working for me.

<pre><code>val uid: String = Settings.Secure.getString(ctx.applicationContext.contentResolver, Settings.Secure.ANDROID_ID)
if (ContextCompat.checkSelfPermission(ctx, Manifest.permission.READ_PHONE_STATE) == PackageManager.PERMISSION_GRANTED) {
 imei = when {
 Build.VERSION.SDK_INT &gt;= Build.VERSION_CODES.Q -&gt; {
 uid
 }
 Build.VERSION.SDK_INT &gt;= Build.VERSION_CODES.O -&gt; {
 telephonyManager.imei
 }
 else -&gt; {
 telephonyManager.deviceId
 }
 }
 }

</code></pre>

blocks|key|1373519|text|您无法从andorid+10%2B或29%2B手机获取imei号码。这里有一个替代函数，用于为设备创建imei号码。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1373520|public++static+String+getDeviceID(){
++++String+devIDShort+=+"35"+%2B+//we+make+this+look+like+a+valid+IMEI
++++++++++++Build.BOARD.length()%2510%2B+Build.BRAND.length()%2510+%2B
++++++++++++Build.CPU_ABI.length()%2510+%2B+Build.DEVICE.length()%2510+%2B
++++++++++++Build.DISPLAY.length()%2510+%2B+Build.HOST.length()%2510+%2B
++++++++++++Build.ID.length()%2510+%2B+Build.MANUFACTURER.length()%2510+%2B
++++++++++++Build.MODEL.length()%2510+%2B+Build.PRODUCT.length()%2510+%2B
++++++++++++Build.TAGS.length()%2510+%2B+Build.TYPE.length()%2510+%2B
++++++++++++Build.USER.length()%2510+;+//13+digits

++++return++devIDShort;
}|code-block|syntax|javascript|1373521|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

There is no Way you can get imei number from andorid 10+ or 29+ mobiles here is the alternative function that will be used for creating imei number for devices.
<pre><code>public static String getDeviceID(){
 String devIDShort = &quot;35&quot; + //we make this look like a valid IMEI
 Build.BOARD.length()%10+ Build.BRAND.length()%10 +
 Build.CPU_ABI.length()%10 + Build.DEVICE.length()%10 +
 Build.DISPLAY.length()%10 + Build.HOST.length()%10 +
 Build.ID.length()%10 + Build.MANUFACTURER.length()%10 +
 Build.MODEL.length()%10 + Build.PRODUCT.length()%10 +
 Build.TAGS.length()%10 + Build.TYPE.length()%10 +
 Build.USER.length()%10 ; //13 digits

 return devIDShort;
}
</code></pre>

To identify each devices uniquely I would like to use the IMEI (or ESN number for CDMA devices). How to access this programmatically?

How to get the device's IMEI/ESN programmatically in android?

Android

Kotlin

为了唯一地标识每个设备，我想使用IMEI (或用于CDMA设备的ESN编号)。如何以编程方式访问它？

问如何在android中以编程方式获取设备的IMEI/ESN？
EN

回答 14

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问如何在android中以编程方式获取设备的IMEI/ESN？EN

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问如何在android中以编程方式获取设备的IMEI/ESN？
EN