获取 UUID Android

Question

我的 UUID Android.This 方法有问题获取 UUID Android 并添加权限清单

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

此方法获取 UUID

   public String deviceUDID(Context ctx) {
        final TelephonyManager tm = (TelephonyManager) ctx.getSystemService(Context.TELEPHONY_SERVICE);

        final String tmDevice, tmSerial, androidId;
        tmDevice = "" + tm.getDeviceId(); //line 82
        tmSerial = "" + tm.getSimSerialNumber();
        androidId = "" + android.provider.Settings.Secure.getString(ctx.getContentResolver(), android.provider.Settings.Secure.ANDROID_ID);

        UUID deviceUuid = new UUID(androidId.hashCode(), ((long) tmDevice.hashCode() << 32) | tmSerial.hashCode());
        String deviceId = deviceUuid.toString();
        Log.d("Device Id", deviceId);
        return deviceId;
    }

当点击在 textView UUID 上显示的按钮时，应用停止。

我的错误日志

03-08 14:22:39.496 20825-20825/com.novum.smrtkarta E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.xxxx.smrtkarta, PID: 20825
java.lang.SecurityException: getDeviceId: Neither user 10155 nor current process has android.permission.READ_PHONE_STATE.
at android.os.Parcel.readException(Parcel.java:1620)
at android.os.Parcel.readException(Parcel.java:1573)
at com.android.internal.telephony.ITelephony$Stub$Proxy.getDeviceId(ITelephony.java:4207)
at android.telephony.TelephonyManager.getDeviceId(TelephonyManager.java:706)
at com.novum.smrtkarta.activity.GetNumberActivity.deviceUDID(GetNumberActivity.java:81)
at com.novum.smrtkarta.activity.GetNumberActivity.onClick(GetNumberActivity.java:62)
at android.view.View.performClick(View.java:5204)
at android.view.View$PerformClick.run(View.java:21153)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5417)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)

Answer 1

您必须确保您在清单中请求 READ_PHONE_STATE 的权限：

<manifest xmlns:android="schemas.android.com/apk/res/android"; package="your.package.name"> 

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

但是，如果您的目标是 Android M，在清单中声明权限是不够的，您必须在运行时明确询问用户： https://developer.android.com/training/permissions/requesting.html

To check if you have a permission, call the ContextCompat.checkSelfPermission() method. For example, this snippet shows how to check if the activity has permission to write to the calendar:

// Assume thisActivity is the current activity 
int permissionCheck = ContextCompat.checkSelfPermission(thisActivity, Manifest.permission.WRITE_CALENDAR);

因此在您的情况下，在调用方法 deviceUDID 之前，请确保您拥有 READ_PHONE_STATE 权限。

您可以按照指示的步骤进行操作 here。

获取 UUID Android

Get UUID Android

java

uuid

android