Android 判断运行环境(ART or Dalvik)

现在可以通过获取java.vm.version的值来判断系统是否使用ART环境了，如果版本高于“２.0.0”即使用了ART环境。

You can verify which runtime is in use by calling

　System.getProperty("java.vm.version")

.
If ART is in use, the property's value is

"2.0.0"

or higher.

StringBuilder ret = new StringBuilder();

String version = System.getProperty("java.vm.version");
ret.append("Current VM version:").append(version).append("\n");
if (Integer.valueOf(version.substring(0, version.indexOf("."))) >= 2) {
ret.append("You are currently using ART!");
} else {
ret.append("You are currently using Dalvik!");
}

Log.d("Hello", ret.toString());