SystemUtils.java

package me.wcy.music.utils;

import android.app.ActivityManager;
import android.app.Service;
import android.content.Context;
import android.text.TextUtils;
import android.text.format.DateUtils;

import java.lang.reflect.Method;
import java.util.List;
import java.util.Locale;

/**
 * Created by hzwangchenyan on 2016/3/22.
 */
public class SystemUtils {

    /**
     * 判断是否有Activity在运行
     */
    public static boolean isStackResumed(Context context) {
        ActivityManager manager = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE);
        List<ActivityManager.RunningTaskInfo> runningTaskInfos = manager.getRunningTasks(1);
        ActivityManager.RunningTaskInfo runningTaskInfo = runningTaskInfos.get(0);
        return runningTaskInfo.numActivities > 1;
    }

    /**
     * 判断Service是否在运行
     */
    public static boolean isServiceRunning(Context context, Class<? extends Service> serviceClass) {
        ActivityManager manager = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE);
        for (ActivityManager.RunningServiceInfo service : manager.getRunningServices(Integer.MAX_VALUE)) {
            if (serviceClass.getName().equals(service.service.getClassName())) {
                return true;
            }
        }
        return false;
    }

    public static boolean isFlyme() {
        String flymeFlag = getSystemProperty("ro.build.display.id");
        return !TextUtils.isEmpty(flymeFlag) && flymeFlag.toLowerCase().contains("flyme");
    }

    private static String getSystemProperty(String key) {
        try {
            Class<?> classType = Class.forName("android.os.SystemProperties");
            Method getMethod = classType.getDeclaredMethod("get", String.class);
            return (String) getMethod.invoke(classType, key);
        } catch (Throwable th) {
            th.printStackTrace();
        }
        return null;
    }

    public static String formatTime(String pattern, long milli) {
        int m = (int) (milli / DateUtils.MINUTE_IN_MILLIS);
        int s = (int) ((milli / DateUtils.SECOND_IN_MILLIS) % 60);
        String mm = String.format(Locale.getDefault(), "%02d", m);
        String ss = String.format(Locale.getDefault(), "%02d", s);
        return pattern.replace("mm", mm).replace("ss", ss);
    }
}