Android 获取处理器架构的 API 调用
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API call to get processor architecture
提问by Ljdawson
As part of my app I'm using the NDK and was wondering if it's worth bundling x86 and mips binaries alongside the standard ARM binaries.
作为我的应用程序的一部分，我使用 NDK 并且想知道是否值得将 x86 和 mips 二进制文件与标准 ARM 二进制文件捆绑在一起。
I figured the best way would be to track what my users actually have, is there an API call to grab the processor architecture so I can pass this back to my Google analytics instance?
我认为最好的方法是跟踪我的用户实际拥有的内容，是否有 API 调用来获取处理器架构，以便我可以将其传递回我的 Google 分析实例？
Thanks
谢谢
回答by 3c71
Actually, you can get the architecture without the need for reflexion at all:
实际上，您可以完全无需反思即可获得架构：
String arch = System.getProperty("os.arch");
From my tests it returned armv71and i686.
从我的测试中它返回armv71并且i686.
EDIT:
编辑：
On MIPS architecture, it either returns 'mips' or 'mips64'
在 MIPS 架构上，它要么返回 'mips' 或 'mips64'
On 64 bit ARM/Intel, it returns 'aarch64' or 'x86_64' respectively.
在 64 位 ARM/Intel 上，它分别返回“aarch64”或“x86_64”。
回答by shem
You can also use android SDK, take a look on the Buildclass:
也可以使用android SDK，看一下Build类：
/** The name of the instruction set (CPU type + ABI convention) of native code. */
public static final String CPU_ABI = getString("ro.product.cpu.abi");
/** The name of the second instruction set (CPU type + ABI convention) of native code. */
public static final String CPU_ABI2 = getString("ro.product.cpu.abi2");
回答by tommybee
You can use adb command
您可以使用 adb 命令
adb shell getprop ro.product.cpu.abi adb shell getprop ro.product.cpu.abi2
adb shell getprop ro.product.cpu.abi adb shell getprop ro.product.cpu.abi2
and refer the [site]: How to know a process of an app is 32-bit or 64-bit programmatically in Android lollipop?
并参考 [站点]：如何在 Android 棒棒糖中以编程方式知道应用程序的进程是 32 位还是 64 位？
If you're looking for the Lollipop API
如果您正在寻找 Lollipop API
import android.os.Build;
Log.i(TAG, "CPU_ABI : " + Build.CPU_ABI);
Log.i(TAG, "CPU_ABI2 : " + Build.CPU_ABI2);
Log.i(TAG, "OS.ARCH : " + System.getProperty("os.arch"));
Log.i(TAG, "SUPPORTED_ABIS : " + Arrays.toString(Build.SUPPORTED_ABIS));
Log.i(TAG, "SUPPORTED_32_BIT_ABIS : " + Arrays.toString(Build.SUPPORTED_32_BIT_ABIS));
Log.i(TAG, "SUPPORTED_64_BIT_ABIS : " + Arrays.toString(Build.SUPPORTED_64_BIT_ABIS));
回答by and0421
回答by Maher Abuthraa
Try this command:
试试这个命令：
adb shell getprop ro.product.cpu.abi
It tells whether cpu is ARM or Intel , 64 or 86_64
它告诉 CPU 是 ARM 还是 Intel，64 或 86_64
回答by nandeesh
The values you are looking for are
您正在寻找的值是
ro.product.cpu.abi
ro.product.cpu.abi
and
和
ro.product.cpu.abi2
ro.product.cpu.abi2
These can be got using internal api SystemProperties.get So you will have to use Reflection on SystemProperties.
这些可以使用内部 api SystemProperties.get 获得，因此您必须在 SystemProperties 上使用反射。
You could use the function getSystemProperty if you are not too keen on reflection. Check it here
如果您不太热衷于反射，您可以使用函数 getSystemProperty。在这里检查
回答by Ratata Tata
termux-appuses a different approach and has an explanation:
termux-app使用不同的方法并有解释：
private static String determineTermuxArchName() {
// Note that we cannot use System.getProperty("os.arch") since that may give e.g. "aarch64"
// while a 64-bit runtime may not be installed (like on the Samsung Galaxy S5 Neo).
// Instead we search through the supported abi:s on the device, see:
// http://developer.android.com/ndk/guides/abis.html
// Note that we search for abi:s in preferred order (the ordering of the
// Build.SUPPORTED_ABIS list) to avoid e.g. installing arm on an x86 system where arm
// emulation is available.
for (String androidArch : Build.SUPPORTED_ABIS) {
switch (androidArch) {
case "arm64-v8a": return "aarch64";
case "armeabi-v7a": return "arm";
case "x86_64": return "x86_64";
case "x86": return "i686";
}
}
throw new RuntimeException("Unable to determine arch from Build.SUPPORTED_ABIS = " +
Arrays.toString(Build.SUPPORTED_ABIS));
}
来自：https: //github.com/termux/termux-app/blob/master/app/src/main/java/com/termux/app/TermuxInstaller.java
回答by Robs Ned
My Code looks like this
我的代码看起来像这样
private String cpuinfo()
{
String arch = System.getProperty("os.arch");
String arc = arch.substring(0, 3).toUpperCase();
String rarc="";
if (arc.equals("ARM")) {
rarc= "This is ARM";
}else if (arc.equals("MIP")){
rarc= "This is MIPS";
}else if (arc.equals("X86")){
rarc= "This is X86";
}
return rarc;
}
