为了唯一地识别每个设备,我想使用IMEI(或CDMA设备的ESN号)。如何以编程方式访问它?


当前回答

你可以使用这个TelephonyManager TELEPHONY_SERVICE函数来获取唯一的设备ID, 要求权限:READ_PHONE_STATE

<uses-permission android:name="android.permission.READ_PHONE_STATE" />

例如,GSM手机的IMEI, CDMA手机的MEID或ESN。

/**
 * Gets the device unique id called IMEI. Sometimes, this returns 00000000000000000 for the
 * rooted devices.
 **/
public static String getDeviceImei(Context ctx) {
    TelephonyManager telephonyManager = (TelephonyManager) ctx.getSystemService(Context.TELEPHONY_SERVICE);
    return telephonyManager.getDeviceId();
}

如果设备ID不可用,则返回null。

其他回答

对于那些寻找Kotlin版本的人,您可以使用这样的东西;

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")
}

注意:您必须使用checkSelfPermission或任何您使用的方法将上面的telephonyService()与权限检查一起包装。

还可以在清单文件中添加此权限;

<uses-permission android:name="android.permission.READ_PHONE_STATE"/>

对于Android 6.0+游戏已经改变,所以我建议你使用这个;

最好的方法是在运行时执行,否则会出现权限错误。

   /**
 * 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+="\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);
}
}

希望这能帮助到你或其他人。

或者你可以使用ANDROID_ID设置从Android.Provider.Settings.System(这里描述strazerre.com)。

这样做的好处是,它不需要特殊的权限,但如果另一个应用程序具有写访问权限并更改它,则可以更改它(这显然不常见,但并非不可能)。

仅供参考,这里是来自博客的代码:

import android.provider.Settings;
import android.provider.Settings.System;   

String androidID = System.getString(this.getContentResolver(),Secure.ANDROID_ID);

实现注意:如果ID对系统架构至关重要,你需要意识到在实践中,一些非常低端的Android手机和平板电脑已经发现重用相同的ANDROID_ID (9774d56d682e549c是显示在我们的日志中的值)

新更新:

对于Android版本6及以上,WLAN MAC地址已弃用,请遵循Trevor Johns的回答

更新:

对于设备的唯一标识,可以使用Secure.ANDROID_ID。

旧的回答:

使用IMEI作为唯一设备ID的缺点:

IMEI依赖于设备的Simcard插槽,所以它不是 对于不使用Simcard的设备,可以获得IMEI。 在双sim卡设备中,我们为同一个设备获得2个不同的imei,因为它有2个sim卡插槽。

您可以使用WLAN MAC地址字符串(不推荐用于Marshmallow和Marshmallow+,因为WLAN MAC地址已在Marshmallow转发上被弃用。所以你会得到一个伪值)

我们也可以使用WLAN MAC地址获得android手机的唯一ID。MAC地址对于所有设备都是唯一的,它适用于所有类型的设备。

使用WLAN MAC地址作为设备ID的优点:

它是所有类型设备的唯一标识符(智能手机和 平板电脑)。 如果重新安装应用程序,它将保持唯一

使用WLAN MAC地址作为设备ID的缺点:

给你一个虚假的价值从棉花糖和以上。 如果设备没有wifi硬件,MAC地址为空, 但通常可以看到大多数Android设备都有wifi 硬件和市场上几乎没有没有wifi的设备 硬件。

来源:technetexperts.com

获取IMEI(国际移动设备标识符)

public String getIMEI(Activity activity) {
    TelephonyManager telephonyManager = (TelephonyManager) activity
            .getSystemService(Context.TELEPHONY_SERVICE);
    return telephonyManager.getDeviceId();
}

获取设备唯一id

public String getDeviceUniqueID(Activity activity){
    String device_unique_id = Secure.getString(activity.getContentResolver(),
            Secure.ANDROID_ID);
    return device_unique_id;
}