最近看到某客户端有一个检测模拟器的方法，我正常手机结果被判断是模拟器了，很好奇，于是找了一下原因。
普遍检测代码如下：
public boolean isEmulator() {
String url = "tel:" + "123456";
Intent intent = new Intent();
intent.setData(Uri.parse(url));
intent.setAction(Intent.ACTION_DIAL);
// 是否可以处理跳转到拨号的 Intent
boolean canResolveIntent = intent.resolveActivity(mContext.getPackageManager()) != null;
return Build.FINGERPRINT.startsWith("generic")
|| Build.FINGERPRINT.toLowerCase().contains("vbox")
|| Build.FINGERPRINT.toLowerCase().contains("test-keys")
|| Build.MODEL.contains("google_sdk")
|| Build.MODEL.contains("Emulator")
|| Build.SERIAL.equalsIgnoreCase("unknown")
|| Build.SERIAL.equalsIgnoreCase("android")
|| Build.MODEL.contains("Android SDK built for x86")
|| Build.MANUFACTURER.contains("Genymotion")
|| (Build.BRAND.startsWith("generic") && Build.DEVICE.startsWith("generic"))
|| "google_sdk".equals(Build.PRODUCT)
|| ((TelephonyManager) mContext.getSystemService(Context.TELEPHONY_SERVICE))
.getNetworkOperatorName().toLowerCase().equals("android")
|| ！canResolverIntent;
}
这个代码检测模拟器有两个问题：
1、拨号检测，Android10.0及以上均为false
2、Build.SERIAL，Android8.0以上均为unknown
这导致8.0以上系统均会被误判
推荐模拟器检测方法：
设备信息检测代码：
private static final String[] known_numbers = {
"15555215554", "15555215556", "15555215558", "15555215560", "15555215562", "15555215564", "15555215566", "15555215568", "15555215570", "15555215572", "15555215574", "15555215576", "15555215578", "15555215580", "15555215582", "15555215584",};
private boolean detectEmulator() {
if (Build.FINGERPRINT.startsWith("generic") || Build.FINGERPRINT.startsWith("unknown")
|| Build.MODEL.contains("google_sdk") || Build.MODEL.contains("Emulator")
|| Build.MODEL.contains("Android SDK built for x86") || Build.MANUFACTURER.contains("Genymotion")
|| (Build.BRAND.startsWith("generic") && Build.DEVICE.startsWith("generic"))
|| "google_sdk".equals(Build.PRODUCT)) {
return true;
}
if (Build.PRODUCT.equals("sdk") || Build.PRODUCT.equals("sdk_x86")
|| Build.PRODUCT.equals("vbox86p") || Build.PRODUCT.equals("emulator")) {
return true;
}
if (Build.BOARD == null) {
return true;
}
if (Build.BOARD.equals("unknown")
|| Build.BOARD.contains("android")
|| Build.BOARD.contains("droid")) {
return true;
}
if (Build.DEVICE == null) {
return true;
}
if (Build.DEVICE.equals("unknown")
|| Build.DEVICE.contains("android")
|| Build.DEVICE.contains("droid")) {
return true;
}
if (Build.HARDWARE == null) {
return true;
}
if (Build.HARDWARE.equals("goldfish")
|| Build.HARDWARE.equals("ranchu")
|| Build.HARDWARE.contains("ranchu")) {
return true;
}
if (Build.BRAND == null) {
return true;
}
if (Build.BRAND.startsWith("generic") && Build.DEVICE.startsWith("generic")) {
return true;
}
if (Build.MANUFACTURER.equals("unknown")) {
return true;
}
if (Build.MANUFACTURER.equals("Genymotion")) {
return true;
}
if ((Build.BRAND.startsWith("generic") && Build.DEVICE.startsWith("generic"))
|| "google_sdk".equals(Build.PRODUCT)) {
return true;
}
if (Build.PRODUCT == null) {
return true;
}
if (Build.PRODUCT.equals("sdk")
|| Build.PRODUCT.equals("sdk_x86")
|| Build.PRODUCT.equals("vbox86p")
|| Build.PRODUCT.equals("emulator")) {
return true;
}
if (Build.HARDWARE.equals("goldfish")
|| Build.HARDWARE.equals("ranchu")) {
return true;
}
if (Build.FINGERPRINT.startsWith("generic")
|| Build.FINGERPRINT.startsWith("unknown")
|| Build.MODEL.contains("google_sdk")
|| Build.MODEL.contains("Emulator")
|| Build.MODEL.contains("Android SDK built for x86")
|| Build.MANUFACTURER.contains("Genymotion")
|| (Build.BRAND.startsWith("generic") && Build.DEVICE.startsWith("generic"))
|| "google_sdk".equals(Build.PRODUCT)) {
return true;
}
if (Build.PRODUCT == null) {
return true;
}
if (Build.PRODUCT.equals("sdk")
|| Build.PRODUCT.equals("sdk_x86")
|| Build.PRODUCT.equals("vbox86p")
|| Build.PRODUCT.equals("emulator")) {
return true;
}
if (Build.HARDWARE.equals("goldfish")
|| Build.HARDWARE.equals("ranchu")) {
return true;
}
if (new File("/dev/socket/qemud").exists()
|| new File("/dev/qemu_pipe").exists()) {
return true;
}
try {
TelephonyManager telephonyManager = (TelephonyManager) getSystemService(TELEPHONY_SERVICE);
if (telephonyManager != null) {
String deviceId = telephonyManager.getDeviceId();
List<String> knownNumbers = Arrays.asList(known_numbers);
if (knownNumbers.contains(deviceId)) {
return true;
}
}
} catch (Exception e) {
}
return false;
}
上述代码使用了多种方法来检测设备是否为模拟器，这些方法包括：
- 检测 Build.FINGERPRINT 是否以 “generic” 或 “unknown” 开头
- 检测 Build.MODEL 是否包含 “google_sdk”、“Emulator” 或 “Android SDK built for x86”
- 检测 Build.MANUFACTURER 是否为 “Genymotion”
- 检测 Build.PRODUCT 是否为 “sdk”、“sdk_x86”、“vbox86p” 或 “emulator”
- 检测 Build.BOARD 是否为 “unknown” 或包含 “android” 或 “droid”
- 检测 Build.DEVICE 是否为 “unknown” 或包含 “android” 或 “droid”
- 检测 Build.HARDWARE 是否为 “goldfish”、“ranchu” 或包含 “ranchu”
- 检测 Build.BRAND 是否以 “generic” 开头，且 Build.DEVICE 以 “generic” 开头
- 检测 Build.PRODUCT 是否为 “google_sdk”
- 检测是否存在文件 “/dev/socket/qemud” 或 “/dev/qemu_pipe”
- 检测设备的电话号码是否为已知的模拟器电话号码
上述方法都是基于固件信息的判断，通过测试发现很多模拟器都失效，参考网上的教程，还有蓝牙、光线传感器、cpu检测，配合上面的固件信息，基本可以搞定大部分模拟器。
蓝牙检测代码：
public boolean notHasBlueTooth() {
BluetoothAdapter ba = BluetoothAdapter.getDefaultAdapter();
if (ba == null) {
return true;
} else {
// 如果有蓝牙不一定是有效的。获取蓝牙名称，若为null 则默认为模拟器
String name = ba.getName();
if (TextUtils.isEmpty(name)) {
return true;
} else {
return false;
}
}
}
光传感器检测代码：
public static Boolean notHasLightSensorManager(Context context) {
SensorManager sensorManager = (SensorManager) context.getSystemService(SENSOR_SERVICE);
Sensor sensor8 = sensorManager.getDefaultSensor(Sensor.TYPE_LIGHT); //光
if (null == sensor8) {
return true;
} else {
return false;
}
}
CPU检测代码：
public static boolean checkIsNotRealPhone() {
String cpuInfo = readCpuInfo();
if ((cpuInfo.contains("intel") || cpuInfo.contains("amd"))) {
return true;
}
return false;
}
public static String readCpuInfo() {
String result = "";
try {
String[] args = {
"/system/bin/cat", "/proc/cpuinfo"};
ProcessBuilder cmd = new ProcessBuilder(args);
Process process = cmd.start();
StringBuffer sb = new StringBuffer();
String readLine = "";
BufferedReader responseReader = new BufferedReader(new InputStreamReader(process.getInputStream(), "utf-8"));
while ((readLine = responseReader.readLine()) != null) {
sb.append(readLine);
}
responseReader.close();
result = sb.toString().toLowerCase();
} catch (IOException ex) {
}
return result;
}
以上检测方法也不是完全可行，随着Android系统的更新，模拟器的增多，我们需要具体研究对应的一些变动来更新上述代码。
我们检测要注意一个问题，不一定能检测出所有的模拟器，但是一定不能误杀真机。
