Android 获取进程名称

Android 获取进程名称

本篇文章主要获取下当前应用的进程名称,具体代码如下:

public static String getProcessNameDevice(final Context context) {
    int myPid = Process.myPid();
    if (context == null || myPid <= 0) {
        return "";
    }

    ActivityManager.RunningAppProcessInfo myProcess = null;
     // 获取ActivityManager
    ActivityManager activityManager = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE);

    if (activityManager != null) {
        // 获取正在运行的进程列表
        List<ActivityManager.RunningAppProcessInfo> appProcessList = activityManager.getRunningAppProcesses();
        if (appProcessList != null) {
            try {
                // 遍历进程列表，获取进程名
                for (ActivityManager.RunningAppProcessInfo process : appProcessList) {
                    if (process.pid == myPid) {
                        myProcess = process;
                        break;
                    }
                }
            } catch (Exception e) {
                Log.e(TAG, "getProcessNameInternal exception:" + e.getMessage());
            }

            if (myProcess != null) {
                return myProcess.processName;
            }
        }
    }

    FileInputStream in = null;
    try {
        String fn = "/proc/self/cmdline";
        in = new FileInputStream(fn);
        byte[] buffer = new byte[256];
        int len = 0;
        int b;
        while ((b = in.read()) > 0 && len < buffer.length) {
            buffer[len++] = (byte) b;
        }
        return new String(buffer, 0, len, Charset.forName("UTF-8"));
    } catch (Throwable e) {
        throw new AssertionError(e);
    } finally {
        if (in != null) {
            try {
                in.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
}

需要注意:

1. 自Android 5.1版本开始，Google限制了对getRunningAppProcesses()方法的访问权限，只允许获取当前应用的进程信息，而不允许获取其他应用或系统进程的信息.