我希望我的代码在模拟器上运行时与在设备上运行时略有不同。(例如,使用10.0.2.2代替公共URL在开发服务器上自动运行。)检测Android应用程序何时在模拟器中运行的最佳方法是什么?
当前回答
检查设备是否安装了这些包是一个好主意:
mListPackageName.add("com.google.android.launcher.layouts.genymotion");
mListPackageName.add("com.bluestacks");
mListPackageName.add("com.vphone.launcher");
mListPackageName.add("com.bignox.app");
我只是把它放在一个数组列表中…
然后简单地检查包管理器,直到找到一个。
private static boolean isEmulByPackage(Context context) {
final PackageManager pm = context.getPackageManager();
for (final String pkgName : mListPackageName) {
return isPackageInstalled(pkgName, pm);
}
return false;
}
private static boolean isPackageInstalled(final String packageName, final PackageManager packageManager) {
try {
packageManager.getPackageInfo(packageName, 0);
return true;
} catch (PackageManager.NameNotFoundException e) {
return false;
}
}
请注意,VM很可能有一些方法来欺骗应用程序,在这种情况下,可能有必要查看一些虚拟设备中不存在的物理传感器。
其他回答
用下面的代码来判断你的应用是否使用了调试键?它没有检测模拟器,但它可能为您的目的工作?
public void onCreate Bundle b ) {
super.onCreate(savedInstanceState);
if ( signedWithDebugKey(this,this.getClass()) ) {
blah blah blah
}
blah
blah
blah
}
static final String DEBUGKEY =
"get the debug key from logcat after calling the function below once from the emulator";
public static boolean signedWithDebugKey(Context context, Class<?> cls)
{
boolean result = false;
try {
ComponentName comp = new ComponentName(context, cls);
PackageInfo pinfo = context.getPackageManager().getPackageInfo(comp.getPackageName(),PackageManager.GET_SIGNATURES);
Signature sigs[] = pinfo.signatures;
for ( int i = 0; i < sigs.length;i++)
Log.d(TAG,sigs[i].toCharsString());
if (DEBUGKEY.equals(sigs[0].toCharsString())) {
result = true;
Log.d(TAG,"package has been signed with the debug key");
} else {
Log.d(TAG,"package signed with a key other than the debug key");
}
} catch (android.content.pm.PackageManager.NameNotFoundException e) {
return false;
}
return result;
}
所有答案都在一个方法中
static boolean checkEmulator()
{
try
{
String buildDetails = (Build.FINGERPRINT + Build.DEVICE + Build.MODEL + Build.BRAND + Build.PRODUCT + Build.MANUFACTURER + Build.HARDWARE).toLowerCase();
if (buildDetails.contains("generic")
|| buildDetails.contains("unknown")
|| buildDetails.contains("emulator")
|| buildDetails.contains("sdk")
|| buildDetails.contains("genymotion")
|| buildDetails.contains("x86") // this includes vbox86
|| buildDetails.contains("goldfish")
|| buildDetails.contains("test-keys"))
return true;
}
catch (Throwable t) {Logger.catchedError(t);}
try
{
TelephonyManager tm = (TelephonyManager) App.context.getSystemService(Context.TELEPHONY_SERVICE);
String non = tm.getNetworkOperatorName().toLowerCase();
if (non.equals("android"))
return true;
}
catch (Throwable t) {Logger.catchedError(t);}
try
{
if (new File ("/init.goldfish.rc").exists())
return true;
}
catch (Throwable t) {Logger.catchedError(t);}
return false;
}
在模拟器的文件系统中放入一个文件;由于该文件不会存在于真正的设备上,这应该是稳定的,可靠的,容易修复当它崩溃。
这对我来说是有效的,而不是startwith: Build.FINGERPRINT.contains("generic")
欲了解更多信息,请查看这个链接:https://gist.github.com/espinchi/168abf054425893d86d1
Firebase Crashlytics是这样做的:
private static final String GOLDFISH = "goldfish";
private static final String RANCHU = "ranchu";
private static final String SDK = "sdk";
public static boolean isEmulator() {
return Build.PRODUCT.contains(SDK)
|| Build.HARDWARE.contains(GOLDFISH)
|| Build.HARDWARE.contains(RANCHU);
}
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